diff options
Diffstat (limited to 'chromium/third_party/sqlite/src/amalgamation_dev/shell/shell.c')
| -rw-r--r-- | chromium/third_party/sqlite/src/amalgamation_dev/shell/shell.c | 6546 |
1 files changed, 5210 insertions, 1336 deletions
diff --git a/chromium/third_party/sqlite/src/amalgamation_dev/shell/shell.c b/chromium/third_party/sqlite/src/amalgamation_dev/shell/shell.c index e66ae0874f5..d1f34ce0945 100644 --- a/chromium/third_party/sqlite/src/amalgamation_dev/shell/shell.c +++ b/chromium/third_party/sqlite/src/amalgamation_dev/shell/shell.c @@ -34,10 +34,12 @@ /* This needs to come before any includes for MSVC compiler */ #define _CRT_SECURE_NO_WARNINGS #endif +typedef unsigned int u32; +typedef unsigned short int u16; /* ** Optionally #include a user-defined header, whereby compilation options -** may be set prior to where they take effect, but after platform setup. +** may be set prior to where they take effect, but after platform setup. ** If SQLITE_CUSTOM_INCLUDE=? is defined, its value names the #include ** file. Note that this macro has a like effect on sqlite3.c compilation. */ @@ -56,6 +58,15 @@ #endif /* +** If SQLITE_SHELL_FIDDLE is defined then the shell is modified +** somewhat for use as a WASM module in a web browser. This flag +** should only be used when building the "fiddle" web application, as +** the browser-mode build has much different user input requirements +** and this build mode rewires the user input subsystem to account for +** that. +*/ + +/* ** Warning pragmas copied from msvc.h in the core. */ #if defined(_MSC_VER) @@ -94,6 +105,14 @@ # define _LARGEFILE_SOURCE 1 #endif +#if defined(SQLITE_SHELL_FIDDLE) && !defined(_POSIX_SOURCE) +/* +** emcc requires _POSIX_SOURCE (or one of several similar defines) +** to expose strdup(). +*/ +# define _POSIX_SOURCE +#endif + #include <stdlib.h> #include <string.h> #include <stdio.h> @@ -110,7 +129,7 @@ typedef unsigned char u8; #if !defined(_WIN32) && !defined(WIN32) # include <signal.h> -# if !defined(__RTP__) && !defined(_WRS_KERNEL) +# if !defined(__RTP__) && !defined(_WRS_KERNEL) && !defined(SQLITE_WASI) # include <pwd.h> # endif #endif @@ -165,6 +184,14 @@ typedef unsigned char u8; # define SHELL_USE_LOCAL_GETLINE 1 #endif +#ifndef deliberate_fall_through +/* Quiet some compilers about some of our intentional code. */ +# if defined(GCC_VERSION) && GCC_VERSION>=7000000 +# define deliberate_fall_through __attribute__((fallthrough)); +# else +# define deliberate_fall_through +# endif +#endif #if defined(_WIN32) || defined(WIN32) # if SQLITE_OS_WINRT @@ -191,7 +218,7 @@ typedef unsigned char u8; /* Make sure isatty() has a prototype. */ extern int isatty(int); -# if !defined(__RTP__) && !defined(_WRS_KERNEL) +# if !defined(__RTP__) && !defined(_WRS_KERNEL) && !defined(SQLITE_WASI) /* popen and pclose are not C89 functions and so are ** sometimes omitted from the <stdio.h> header */ extern FILE *popen(const char*,const char*); @@ -247,20 +274,21 @@ static void setTextMode(FILE *file, int isOutput){ # define setTextMode(X,Y) #endif -/* -** When compiling with emcc (a.k.a. emscripten), we're building a -** WebAssembly (WASM) bundle and need to disable and rewire a few -** things. -*/ -#ifdef __EMSCRIPTEN__ -#define SQLITE_SHELL_WASM_MODE -#else -#undef SQLITE_SHELL_WASM_MODE -#endif - /* True if the timer is enabled */ static int enableTimer = 0; +/* A version of strcmp() that works with NULL values */ +static int cli_strcmp(const char *a, const char *b){ + if( a==0 ) a = ""; + if( b==0 ) b = ""; + return strcmp(a,b); +} +static int cli_strncmp(const char *a, const char *b, size_t n){ + if( a==0 ) a = ""; + if( b==0 ) b = ""; + return strncmp(a,b,n); +} + /* Return the current wall-clock time */ static sqlite3_int64 timeOfDay(void){ static sqlite3_vfs *clockVfs = 0; @@ -465,8 +493,108 @@ static char *Argv0; ** Prompt strings. Initialized in main. Settable with ** .prompt main continue */ -static char mainPrompt[20]; /* First line prompt. default: "sqlite> "*/ -static char continuePrompt[20]; /* Continuation prompt. default: " ...> " */ +#define PROMPT_LEN_MAX 20 +/* First line prompt. default: "sqlite> " */ +static char mainPrompt[PROMPT_LEN_MAX]; +/* Continuation prompt. default: " ...> " */ +static char continuePrompt[PROMPT_LEN_MAX]; + +/* This is variant of the standard-library strncpy() routine with the +** one change that the destination string is always zero-terminated, even +** if there is no zero-terminator in the first n-1 characters of the source +** string. +*/ +static char *shell_strncpy(char *dest, const char *src, size_t n){ + size_t i; + for(i=0; i<n-1 && src[i]!=0; i++) dest[i] = src[i]; + dest[i] = 0; + return dest; +} + +/* +** Optionally disable dynamic continuation prompt. +** Unless disabled, the continuation prompt shows open SQL lexemes if any, +** or open parentheses level if non-zero, or continuation prompt as set. +** This facility interacts with the scanner and process_input() where the +** below 5 macros are used. +*/ +#ifdef SQLITE_OMIT_DYNAPROMPT +# define CONTINUATION_PROMPT continuePrompt +# define CONTINUE_PROMPT_RESET +# define CONTINUE_PROMPT_AWAITS(p,s) +# define CONTINUE_PROMPT_AWAITC(p,c) +# define CONTINUE_PAREN_INCR(p,n) +# define CONTINUE_PROMPT_PSTATE 0 +typedef void *t_NoDynaPrompt; +# define SCAN_TRACKER_REFTYPE t_NoDynaPrompt +#else +# define CONTINUATION_PROMPT dynamicContinuePrompt() +# define CONTINUE_PROMPT_RESET \ + do {setLexemeOpen(&dynPrompt,0,0); trackParenLevel(&dynPrompt,0);} while(0) +# define CONTINUE_PROMPT_AWAITS(p,s) \ + if(p && stdin_is_interactive) setLexemeOpen(p, s, 0) +# define CONTINUE_PROMPT_AWAITC(p,c) \ + if(p && stdin_is_interactive) setLexemeOpen(p, 0, c) +# define CONTINUE_PAREN_INCR(p,n) \ + if(p && stdin_is_interactive) (trackParenLevel(p,n)) +# define CONTINUE_PROMPT_PSTATE (&dynPrompt) +typedef struct DynaPrompt *t_DynaPromptRef; +# define SCAN_TRACKER_REFTYPE t_DynaPromptRef + +static struct DynaPrompt { + char dynamicPrompt[PROMPT_LEN_MAX]; + char acAwait[2]; + int inParenLevel; + char *zScannerAwaits; +} dynPrompt = { {0}, {0}, 0, 0 }; + +/* Record parenthesis nesting level change, or force level to 0. */ +static void trackParenLevel(struct DynaPrompt *p, int ni){ + p->inParenLevel += ni; + if( ni==0 ) p->inParenLevel = 0; + p->zScannerAwaits = 0; +} + +/* Record that a lexeme is opened, or closed with args==0. */ +static void setLexemeOpen(struct DynaPrompt *p, char *s, char c){ + if( s!=0 || c==0 ){ + p->zScannerAwaits = s; + p->acAwait[0] = 0; + }else{ + p->acAwait[0] = c; + p->zScannerAwaits = p->acAwait; + } +} + +/* Upon demand, derive the continuation prompt to display. */ +static char *dynamicContinuePrompt(void){ + if( continuePrompt[0]==0 + || (dynPrompt.zScannerAwaits==0 && dynPrompt.inParenLevel == 0) ){ + return continuePrompt; + }else{ + if( dynPrompt.zScannerAwaits ){ + size_t ncp = strlen(continuePrompt); + size_t ndp = strlen(dynPrompt.zScannerAwaits); + if( ndp > ncp-3 ) return continuePrompt; + strcpy(dynPrompt.dynamicPrompt, dynPrompt.zScannerAwaits); + while( ndp<3 ) dynPrompt.dynamicPrompt[ndp++] = ' '; + shell_strncpy(dynPrompt.dynamicPrompt+3, continuePrompt+3, + PROMPT_LEN_MAX-4); + }else{ + if( dynPrompt.inParenLevel>9 ){ + shell_strncpy(dynPrompt.dynamicPrompt, "(..", 4); + }else if( dynPrompt.inParenLevel<0 ){ + shell_strncpy(dynPrompt.dynamicPrompt, ")x!", 4); + }else{ + shell_strncpy(dynPrompt.dynamicPrompt, "(x.", 4); + dynPrompt.dynamicPrompt[2] = (char)('0'+dynPrompt.inParenLevel); + } + shell_strncpy(dynPrompt.dynamicPrompt+3, continuePrompt+3, PROMPT_LEN_MAX-4); + } + } + return dynPrompt.dynamicPrompt; +} +#endif /* !defined(SQLITE_OMIT_DYNAPROMPT) */ /* ** Render output like fprintf(). Except, if the output is going to the @@ -549,6 +677,7 @@ static void utf8_width_print(FILE *pOut, int w, const char *zUtf){ int i; int n; int aw = w<0 ? -w : w; + if( zUtf==0 ) zUtf = ""; for(i=n=0; zUtf[i]; i++){ if( (zUtf[i]&0xc0)!=0x80 ){ n++; @@ -692,7 +821,7 @@ static char *local_getline(char *zLine, FILE *in){ if( stdin_is_interactive && in==stdin ){ char *zTrans = sqlite3_win32_mbcs_to_utf8_v2(zLine, 0); if( zTrans ){ - int nTrans = strlen30(zTrans)+1; + i64 nTrans = strlen(zTrans)+1; if( nTrans>nLine ){ zLine = realloc(zLine, nTrans); shell_check_oom(zLine); @@ -719,14 +848,14 @@ static char *local_getline(char *zLine, FILE *in){ ** be freed by the caller or else passed back into this routine via the ** zPrior argument for reuse. */ -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE static char *one_input_line(FILE *in, char *zPrior, int isContinuation){ char *zPrompt; char *zResult; if( in!=0 ){ zResult = local_getline(zPrior, in); }else{ - zPrompt = isContinuation ? continuePrompt : mainPrompt; + zPrompt = isContinuation ? CONTINUATION_PROMPT : mainPrompt; #if SHELL_USE_LOCAL_GETLINE printf("%s", zPrompt); fflush(stdout); @@ -739,7 +868,7 @@ static char *one_input_line(FILE *in, char *zPrior, int isContinuation){ } return zResult; } -#endif /* !SQLITE_SHELL_WASM_MODE */ +#endif /* !SQLITE_SHELL_FIDDLE */ /* ** Return the value of a hexadecimal digit. Return -1 if the input @@ -828,9 +957,9 @@ static void freeText(ShellText *p){ ** quote character for zAppend. */ static void appendText(ShellText *p, const char *zAppend, char quote){ - int len; - int i; - int nAppend = strlen30(zAppend); + i64 len; + i64 i; + i64 nAppend = strlen30(zAppend); len = nAppend+p->n+1; if( quote ){ @@ -943,7 +1072,7 @@ static void shellModuleSchema( char *zFake; UNUSED_PARAMETER(nVal); zName = (const char*)sqlite3_value_text(apVal[0]); - zFake = zName ? shellFakeSchema(sqlite3_context_db_handle(pCtx), 0, zName) : 0; + zFake = zName? shellFakeSchema(sqlite3_context_db_handle(pCtx), 0, zName) : 0; if( zFake ){ sqlite3_result_text(pCtx, sqlite3_mprintf("/* %s */", zFake), -1, sqlite3_free); @@ -989,10 +1118,10 @@ static void shellAddSchemaName( const char *zName = (const char*)sqlite3_value_text(apVal[2]); sqlite3 *db = sqlite3_context_db_handle(pCtx); UNUSED_PARAMETER(nVal); - if( zIn!=0 && strncmp(zIn, "CREATE ", 7)==0 ){ + if( zIn!=0 && cli_strncmp(zIn, "CREATE ", 7)==0 ){ for(i=0; i<ArraySize(aPrefix); i++){ int n = strlen30(aPrefix[i]); - if( strncmp(zIn+7, aPrefix[i], n)==0 && zIn[n+7]==' ' ){ + if( cli_strncmp(zIn+7, aPrefix[i], n)==0 && zIn[n+7]==' ' ){ char *z = 0; char *zFake = 0; if( zSchema ){ @@ -2037,7 +2166,7 @@ static void sha3Func( /* Compute a string using sqlite3_vsnprintf() with a maximum length ** of 50 bytes and add it to the hash. */ -static void hash_step_vformat( +static void sha3_step_vformat( SHA3Context *p, /* Add content to this context */ const char *zFormat, ... @@ -2133,7 +2262,7 @@ static void sha3QueryFunc( z = sqlite3_sql(pStmt); if( z ){ n = (int)strlen(z); - hash_step_vformat(&cx,"S%d:",n); + sha3_step_vformat(&cx,"S%d:",n); SHA3Update(&cx,(unsigned char*)z,n); } @@ -2177,14 +2306,14 @@ static void sha3QueryFunc( case SQLITE_TEXT: { int n2 = sqlite3_column_bytes(pStmt, i); const unsigned char *z2 = sqlite3_column_text(pStmt, i); - hash_step_vformat(&cx,"T%d:",n2); + sha3_step_vformat(&cx,"T%d:",n2); SHA3Update(&cx, z2, n2); break; } case SQLITE_BLOB: { int n2 = sqlite3_column_bytes(pStmt, i); const unsigned char *z2 = sqlite3_column_blob(pStmt, i); - hash_step_vformat(&cx,"B%d:",n2); + sha3_step_vformat(&cx,"B%d:",n2); SHA3Update(&cx, z2, n2); break; } @@ -2944,7 +3073,7 @@ int sqlite3_decimal_init( SQLITE_EXTENSION_INIT2(pApi); - for(i=0; i<sizeof(aFunc)/sizeof(aFunc[0]) && rc==SQLITE_OK; i++){ + for(i=0; i<(int)(sizeof(aFunc)/sizeof(aFunc[0])) && rc==SQLITE_OK; i++){ rc = sqlite3_create_function(db, aFunc[i].zFuncName, aFunc[i].nArg, SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC, 0, aFunc[i].xFunc, 0, 0); @@ -2963,6 +3092,730 @@ int sqlite3_decimal_init( } /************************* End ../ext/misc/decimal.c ********************/ +#undef sqlite3_base_init +#define sqlite3_base_init sqlite3_base64_init +/************************* Begin ../ext/misc/base64.c ******************/ +/* +** 2022-11-18 +** +** The author disclaims copyright to this source code. In place of +** a legal notice, here is a blessing: +** +** May you do good and not evil. +** May you find forgiveness for yourself and forgive others. +** May you share freely, never taking more than you give. +** +************************************************************************* +** +** This is a SQLite extension for converting in either direction +** between a (binary) blob and base64 text. Base64 can transit a +** sane USASCII channel unmolested. It also plays nicely in CSV or +** written as TCL brace-enclosed literals or SQL string literals, +** and can be used unmodified in XML-like documents. +** +** This is an independent implementation of conversions specified in +** RFC 4648, done on the above date by the author (Larry Brasfield) +** who thereby has the right to put this into the public domain. +** +** The conversions meet RFC 4648 requirements, provided that this +** C source specifies that line-feeds are included in the encoded +** data to limit visible line lengths to 72 characters and to +** terminate any encoded blob having non-zero length. +** +** Length limitations are not imposed except that the runtime +** SQLite string or blob length limits are respected. Otherwise, +** any length binary sequence can be represented and recovered. +** Generated base64 sequences, with their line-feeds included, +** can be concatenated; the result converted back to binary will +** be the concatenation of the represented binary sequences. +** +** This SQLite3 extension creates a function, base64(x), which +** either: converts text x containing base64 to a returned blob; +** or converts a blob x to returned text containing base64. An +** error will be thrown for other input argument types. +** +** This code relies on UTF-8 encoding only with respect to the +** meaning of the first 128 (7-bit) codes matching that of USASCII. +** It will fail miserably if somehow made to try to convert EBCDIC. +** Because it is table-driven, it could be enhanced to handle that, +** but the world and SQLite have moved on from that anachronism. +** +** To build the extension: +** Set shell variable SQDIR=<your favorite SQLite checkout directory> +** *Nix: gcc -O2 -shared -I$SQDIR -fPIC -o base64.so base64.c +** OSX: gcc -O2 -dynamiclib -fPIC -I$SQDIR -o base64.dylib base64.c +** Win32: gcc -O2 -shared -I%SQDIR% -o base64.dll base64.c +** Win32: cl /Os -I%SQDIR% base64.c -link -dll -out:base64.dll +*/ + +#include <assert.h> + +/* #include "sqlite3ext.h" */ + +#ifndef deliberate_fall_through +/* Quiet some compilers about some of our intentional code. */ +# if GCC_VERSION>=7000000 +# define deliberate_fall_through __attribute__((fallthrough)); +# else +# define deliberate_fall_through +# endif +#endif + +SQLITE_EXTENSION_INIT1; + +#define PC 0x80 /* pad character */ +#define WS 0x81 /* whitespace */ +#define ND 0x82 /* Not above or digit-value */ +#define PAD_CHAR '=' + +#ifndef U8_TYPEDEF +/* typedef unsigned char u8; */ +#define U8_TYPEDEF +#endif + +static const u8 b64DigitValues[128] = { + /* HT LF VT FF CR */ + ND,ND,ND,ND, ND,ND,ND,ND, ND,WS,WS,WS, WS,WS,ND,ND, + /* US */ + ND,ND,ND,ND, ND,ND,ND,ND, ND,ND,ND,ND, ND,ND,ND,ND, + /*sp + / */ + WS,ND,ND,ND, ND,ND,ND,ND, ND,ND,ND,62, ND,ND,ND,63, + /* 0 1 5 9 = */ + 52,53,54,55, 56,57,58,59, 60,61,ND,ND, ND,PC,ND,ND, + /* A O */ + ND, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10, 11,12,13,14, + /* P Z */ + 15,16,17,18, 19,20,21,22, 23,24,25,ND, ND,ND,ND,ND, + /* a o */ + ND,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40, + /* p z */ + 41,42,43,44, 45,46,47,48, 49,50,51,ND, ND,ND,ND,ND +}; + +static const char b64Numerals[64+1] += "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + +#define BX_DV_PROTO(c) \ + ((((u8)(c))<0x80)? (u8)(b64DigitValues[(u8)(c)]) : 0x80) +#define IS_BX_DIGIT(bdp) (((u8)(bdp))<0x80) +#define IS_BX_WS(bdp) ((bdp)==WS) +#define IS_BX_PAD(bdp) ((bdp)==PC) +#define BX_NUMERAL(dv) (b64Numerals[(u8)(dv)]) +/* Width of base64 lines. Should be an integer multiple of 4. */ +#define B64_DARK_MAX 72 + +/* Encode a byte buffer into base64 text with linefeeds appended to limit +** encoded group lengths to B64_DARK_MAX or to terminate the last group. +*/ +static char* toBase64( u8 *pIn, int nbIn, char *pOut ){ + int nCol = 0; + while( nbIn >= 3 ){ + /* Do the bit-shuffle, exploiting unsigned input to avoid masking. */ + pOut[0] = BX_NUMERAL(pIn[0]>>2); + pOut[1] = BX_NUMERAL(((pIn[0]<<4)|(pIn[1]>>4))&0x3f); + pOut[2] = BX_NUMERAL(((pIn[1]&0xf)<<2)|(pIn[2]>>6)); + pOut[3] = BX_NUMERAL(pIn[2]&0x3f); + pOut += 4; + nbIn -= 3; + pIn += 3; + if( (nCol += 4)>=B64_DARK_MAX || nbIn<=0 ){ + *pOut++ = '\n'; + nCol = 0; + } + } + if( nbIn > 0 ){ + signed char nco = nbIn+1; + int nbe; + unsigned long qv = *pIn++; + for( nbe=1; nbe<3; ++nbe ){ + qv <<= 8; + if( nbe<nbIn ) qv |= *pIn++; + } + for( nbe=3; nbe>=0; --nbe ){ + char ce = (nbe<nco)? BX_NUMERAL((u8)(qv & 0x3f)) : PAD_CHAR; + qv >>= 6; + pOut[nbe] = ce; + } + pOut += 4; + *pOut++ = '\n'; + } + *pOut = 0; + return pOut; +} + +/* Skip over text which is not base64 numeral(s). */ +static char * skipNonB64( char *s ){ + char c; + while( (c = *s) && !IS_BX_DIGIT(BX_DV_PROTO(c)) ) ++s; + return s; +} + +/* Decode base64 text into a byte buffer. */ +static u8* fromBase64( char *pIn, int ncIn, u8 *pOut ){ + if( ncIn>0 && pIn[ncIn-1]=='\n' ) --ncIn; + while( ncIn>0 && *pIn!=PAD_CHAR ){ + static signed char nboi[] = { 0, 0, 1, 2, 3 }; + char *pUse = skipNonB64(pIn); + unsigned long qv = 0L; + int nti, nbo, nac; + ncIn -= (pUse - pIn); + pIn = pUse; + nti = (ncIn>4)? 4 : ncIn; + ncIn -= nti; + nbo = nboi[nti]; + if( nbo==0 ) break; + for( nac=0; nac<4; ++nac ){ + char c = (nac<nti)? *pIn++ : b64Numerals[0]; + u8 bdp = BX_DV_PROTO(c); + switch( bdp ){ + case ND: + /* Treat dark non-digits as pad, but they terminate decode too. */ + ncIn = 0; + deliberate_fall_through; + case WS: + /* Treat whitespace as pad and terminate this group.*/ + nti = nac; + deliberate_fall_through; + case PC: + bdp = 0; + --nbo; + deliberate_fall_through; + default: /* bdp is the digit value. */ + qv = qv<<6 | bdp; + break; + } + } + switch( nbo ){ + case 3: + pOut[2] = (qv) & 0xff; + case 2: + pOut[1] = (qv>>8) & 0xff; + case 1: + pOut[0] = (qv>>16) & 0xff; + } + pOut += nbo; + } + return pOut; +} + +/* This function does the work for the SQLite base64(x) UDF. */ +static void base64(sqlite3_context *context, int na, sqlite3_value *av[]){ + int nb, nc, nv = sqlite3_value_bytes(av[0]); + int nvMax = sqlite3_limit(sqlite3_context_db_handle(context), + SQLITE_LIMIT_LENGTH, -1); + char *cBuf; + u8 *bBuf; + assert(na==1); + switch( sqlite3_value_type(av[0]) ){ + case SQLITE_BLOB: + nb = nv; + nc = 4*(nv+2/3); /* quads needed */ + nc += (nc+(B64_DARK_MAX-1))/B64_DARK_MAX + 1; /* LFs and a 0-terminator */ + if( nvMax < nc ){ + sqlite3_result_error(context, "blob expanded to base64 too big", -1); + return; + } + cBuf = sqlite3_malloc(nc); + if( !cBuf ) goto memFail; + bBuf = (u8*)sqlite3_value_blob(av[0]); + nc = (int)(toBase64(bBuf, nb, cBuf) - cBuf); + sqlite3_result_text(context, cBuf, nc, sqlite3_free); + break; + case SQLITE_TEXT: + nc = nv; + nb = 3*((nv+3)/4); /* may overestimate due to LF and padding */ + if( nvMax < nb ){ + sqlite3_result_error(context, "blob from base64 may be too big", -1); + return; + }else if( nb<1 ){ + nb = 1; + } + bBuf = sqlite3_malloc(nb); + if( !bBuf ) goto memFail; + cBuf = (char *)sqlite3_value_text(av[0]); + nb = (int)(fromBase64(cBuf, nc, bBuf) - bBuf); + sqlite3_result_blob(context, bBuf, nb, sqlite3_free); + break; + default: + sqlite3_result_error(context, "base64 accepts only blob or text", -1); + return; + } + return; + memFail: + sqlite3_result_error(context, "base64 OOM", -1); +} + +/* +** Establish linkage to running SQLite library. +*/ +#ifndef SQLITE_SHELL_EXTFUNCS +#ifdef _WIN32 + +#endif +int sqlite3_base_init +#else +static int sqlite3_base64_init +#endif +(sqlite3 *db, char **pzErr, const sqlite3_api_routines *pApi){ + SQLITE_EXTENSION_INIT2(pApi); + (void)pzErr; + return sqlite3_create_function + (db, "base64", 1, + SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS|SQLITE_DIRECTONLY|SQLITE_UTF8, + 0, base64, 0, 0); +} + +/* +** Define some macros to allow this extension to be built into the shell +** conveniently, in conjunction with use of SQLITE_SHELL_EXTFUNCS. This +** allows shell.c, as distributed, to have this extension built in. +*/ +#define BASE64_INIT(db) sqlite3_base64_init(db, 0, 0) +#define BASE64_EXPOSE(db, pzErr) /* Not needed, ..._init() does this. */ + +/************************* End ../ext/misc/base64.c ********************/ +#undef sqlite3_base_init +#define sqlite3_base_init sqlite3_base85_init +#define OMIT_BASE85_CHECKER +/************************* Begin ../ext/misc/base85.c ******************/ +/* +** 2022-11-16 +** +** The author disclaims copyright to this source code. In place of +** a legal notice, here is a blessing: +** +** May you do good and not evil. +** May you find forgiveness for yourself and forgive others. +** May you share freely, never taking more than you give. +** +************************************************************************* +** +** This is a utility for converting binary to base85 or vice-versa. +** It can be built as a standalone program or an SQLite3 extension. +** +** Much like base64 representations, base85 can be sent through a +** sane USASCII channel unmolested. It also plays nicely in CSV or +** written as TCL brace-enclosed literals or SQL string literals. +** It is not suited for unmodified use in XML-like documents. +** +** The encoding used resembles Ascii85, but was devised by the author +** (Larry Brasfield) before Mozilla, Adobe, ZMODEM or other Ascii85 +** variant sources existed, in the 1984 timeframe on a VAX mainframe. +** Further, this is an independent implementation of a base85 system. +** Hence, the author has rightfully put this into the public domain. +** +** Base85 numerals are taken from the set of 7-bit USASCII codes, +** excluding control characters and Space ! " ' ( ) { | } ~ Del +** in code order representing digit values 0 to 84 (base 10.) +** +** Groups of 4 bytes, interpreted as big-endian 32-bit values, +** are represented as 5-digit base85 numbers with MS to LS digit +** order. Groups of 1-3 bytes are represented with 2-4 digits, +** still big-endian but 8-24 bit values. (Using big-endian yields +** the simplest transition to byte groups smaller than 4 bytes. +** These byte groups can also be considered base-256 numbers.) +** Groups of 0 bytes are represented with 0 digits and vice-versa. +** No pad characters are used; Encoded base85 numeral sequence +** (aka "group") length maps 1-to-1 to the decoded binary length. +** +** Any character not in the base85 numeral set delimits groups. +** When base85 is streamed or stored in containers of indefinite +** size, newline is used to separate it into sub-sequences of no +** more than 80 digits so that fgets() can be used to read it. +** +** Length limitations are not imposed except that the runtime +** SQLite string or blob length limits are respected. Otherwise, +** any length binary sequence can be represented and recovered. +** Base85 sequences can be concatenated by separating them with +** a non-base85 character; the conversion to binary will then +** be the concatenation of the represented binary sequences. + +** The standalone program either converts base85 on stdin to create +** a binary file or converts a binary file to base85 on stdout. +** Read or make it blurt its help for invocation details. +** +** The SQLite3 extension creates a function, base85(x), which will +** either convert text base85 to a blob or a blob to text base85 +** and return the result (or throw an error for other types.) +** Unless built with OMIT_BASE85_CHECKER defined, it also creates a +** function, is_base85(t), which returns 1 iff the text t contains +** nothing other than base85 numerals and whitespace, or 0 otherwise. +** +** To build the extension: +** Set shell variable SQDIR=<your favorite SQLite checkout directory> +** and variable OPTS to -DOMIT_BASE85_CHECKER if is_base85() unwanted. +** *Nix: gcc -O2 -shared -I$SQDIR $OPTS -fPIC -o base85.so base85.c +** OSX: gcc -O2 -dynamiclib -fPIC -I$SQDIR $OPTS -o base85.dylib base85.c +** Win32: gcc -O2 -shared -I%SQDIR% %OPTS% -o base85.dll base85.c +** Win32: cl /Os -I%SQDIR% %OPTS% base85.c -link -dll -out:base85.dll +** +** To build the standalone program, define PP symbol BASE85_STANDALONE. Eg. +** *Nix or OSX: gcc -O2 -DBASE85_STANDALONE base85.c -o base85 +** Win32: gcc -O2 -DBASE85_STANDALONE -o base85.exe base85.c +** Win32: cl /Os /MD -DBASE85_STANDALONE base85.c +*/ + +#include <stdio.h> +#include <memory.h> +#include <string.h> +#include <assert.h> +#ifndef OMIT_BASE85_CHECKER +# include <ctype.h> +#endif + +#ifndef BASE85_STANDALONE + +/* # include "sqlite3ext.h" */ + +SQLITE_EXTENSION_INIT1; + +#else + +# ifdef _WIN32 +# include <io.h> +# include <fcntl.h> +# else +# define setmode(fd,m) +# endif + +static char *zHelp = + "Usage: base85 <dirFlag> <binFile>\n" + " <dirFlag> is either -r to read or -w to write <binFile>,\n" + " content to be converted to/from base85 on stdout/stdin.\n" + " <binFile> names a binary file to be rendered or created.\n" + " Or, the name '-' refers to the stdin or stdout stream.\n" + ; + +static void sayHelp(){ + printf("%s", zHelp); +} +#endif + +#ifndef U8_TYPEDEF +/* typedef unsigned char u8; */ +#define U8_TYPEDEF +#endif + +/* Classify c according to interval within USASCII set w.r.t. base85 + * Values of 1 and 3 are base85 numerals. Values of 0, 2, or 4 are not. + */ +#define B85_CLASS( c ) (((c)>='#')+((c)>'&')+((c)>='*')+((c)>'z')) + +/* Provide digitValue to b85Numeral offset as a function of above class. */ +static u8 b85_cOffset[] = { 0, '#', 0, '*'-4, 0 }; +#define B85_DNOS( c ) b85_cOffset[B85_CLASS(c)] + +/* Say whether c is a base85 numeral. */ +#define IS_B85( c ) (B85_CLASS(c) & 1) + +#if 0 /* Not used, */ +static u8 base85DigitValue( char c ){ + u8 dv = (u8)(c - '#'); + if( dv>87 ) return 0xff; + return (dv > 3)? dv-3 : dv; +} +#endif + +/* Width of base64 lines. Should be an integer multiple of 5. */ +#define B85_DARK_MAX 80 + + +static char * skipNonB85( char *s ){ + char c; + while( (c = *s) && !IS_B85(c) ) ++s; + return s; +} + +/* Convert small integer, known to be in 0..84 inclusive, to base85 numeral. + * Do not use the macro form with argument expression having a side-effect.*/ +#if 0 +static char base85Numeral( u8 b ){ + return (b < 4)? (char)(b + '#') : (char)(b - 4 + '*'); +} +#else +# define base85Numeral( dn )\ + ((char)(((dn) < 4)? (char)((dn) + '#') : (char)((dn) - 4 + '*'))) +#endif + +static char *putcs(char *pc, char *s){ + char c; + while( (c = *s++)!=0 ) *pc++ = c; + return pc; +} + +/* Encode a byte buffer into base85 text. If pSep!=0, it's a C string +** to be appended to encoded groups to limit their length to B85_DARK_MAX +** or to terminate the last group (to aid concatenation.) +*/ +static char* toBase85( u8 *pIn, int nbIn, char *pOut, char *pSep ){ + int nCol = 0; + while( nbIn >= 4 ){ + int nco = 5; + unsigned long qbv = (((unsigned long)pIn[0])<<24) | + (pIn[1]<<16) | (pIn[2]<<8) | pIn[3]; + while( nco > 0 ){ + unsigned nqv = (unsigned)(qbv/85UL); + unsigned char dv = qbv - 85UL*nqv; + qbv = nqv; + pOut[--nco] = base85Numeral(dv); + } + nbIn -= 4; + pIn += 4; + pOut += 5; + if( pSep && (nCol += 5)>=B85_DARK_MAX ){ + pOut = putcs(pOut, pSep); + nCol = 0; + } + } + if( nbIn > 0 ){ + int nco = nbIn + 1; + unsigned long qv = *pIn++; + int nbe = 1; + while( nbe++ < nbIn ){ + qv = (qv<<8) | *pIn++; + } + nCol += nco; + while( nco > 0 ){ + u8 dv = (u8)(qv % 85); + qv /= 85; + pOut[--nco] = base85Numeral(dv); + } + pOut += (nbIn+1); + } + if( pSep && nCol>0 ) pOut = putcs(pOut, pSep); + *pOut = 0; + return pOut; +} + +/* Decode base85 text into a byte buffer. */ +static u8* fromBase85( char *pIn, int ncIn, u8 *pOut ){ + if( ncIn>0 && pIn[ncIn-1]=='\n' ) --ncIn; + while( ncIn>0 ){ + static signed char nboi[] = { 0, 0, 1, 2, 3, 4 }; + char *pUse = skipNonB85(pIn); + unsigned long qv = 0L; + int nti, nbo; + ncIn -= (pUse - pIn); + pIn = pUse; + nti = (ncIn>5)? 5 : ncIn; + nbo = nboi[nti]; + if( nbo==0 ) break; + while( nti>0 ){ + char c = *pIn++; + u8 cdo = B85_DNOS(c); + --ncIn; + if( cdo==0 ) break; + qv = 85 * qv + (c - cdo); + --nti; + } + nbo -= nti; /* Adjust for early (non-digit) end of group. */ + switch( nbo ){ + case 4: + *pOut++ = (qv >> 24)&0xff; + case 3: + *pOut++ = (qv >> 16)&0xff; + case 2: + *pOut++ = (qv >> 8)&0xff; + case 1: + *pOut++ = qv&0xff; + case 0: + break; + } + } + return pOut; +} + +#ifndef OMIT_BASE85_CHECKER +/* Say whether input char sequence is all (base85 and/or whitespace).*/ +static int allBase85( char *p, int len ){ + char c; + while( len-- > 0 && (c = *p++) != 0 ){ + if( !IS_B85(c) && !isspace(c) ) return 0; + } + return 1; +} +#endif + +#ifndef BASE85_STANDALONE + +# ifndef OMIT_BASE85_CHECKER +/* This function does the work for the SQLite is_base85(t) UDF. */ +static void is_base85(sqlite3_context *context, int na, sqlite3_value *av[]){ + assert(na==1); + switch( sqlite3_value_type(av[0]) ){ + case SQLITE_TEXT: + { + int rv = allBase85( (char *)sqlite3_value_text(av[0]), + sqlite3_value_bytes(av[0]) ); + sqlite3_result_int(context, rv); + } + break; + case SQLITE_NULL: + sqlite3_result_null(context); + break; + default: + sqlite3_result_error(context, "is_base85 accepts only text or NULL", -1); + return; + } +} +# endif + +/* This function does the work for the SQLite base85(x) UDF. */ +static void base85(sqlite3_context *context, int na, sqlite3_value *av[]){ + int nb, nc, nv = sqlite3_value_bytes(av[0]); + int nvMax = sqlite3_limit(sqlite3_context_db_handle(context), + SQLITE_LIMIT_LENGTH, -1); + char *cBuf; + u8 *bBuf; + assert(na==1); + switch( sqlite3_value_type(av[0]) ){ + case SQLITE_BLOB: + nb = nv; + /* ulongs tail newlines tailenc+nul*/ + nc = 5*(nv/4) + nv%4 + nv/64+1 + 2; + if( nvMax < nc ){ + sqlite3_result_error(context, "blob expanded to base85 too big", -1); + return; + } + cBuf = sqlite3_malloc(nc); + if( !cBuf ) goto memFail; + bBuf = (u8*)sqlite3_value_blob(av[0]); + nc = (int)(toBase85(bBuf, nb, cBuf, "\n") - cBuf); + sqlite3_result_text(context, cBuf, nc, sqlite3_free); + break; + case SQLITE_TEXT: + nc = nv; + nb = 4*(nv/5) + nv%5; /* may overestimate */ + if( nvMax < nb ){ + sqlite3_result_error(context, "blob from base85 may be too big", -1); + return; + }else if( nb<1 ){ + nb = 1; + } + bBuf = sqlite3_malloc(nb); + if( !bBuf ) goto memFail; + cBuf = (char *)sqlite3_value_text(av[0]); + nb = (int)(fromBase85(cBuf, nc, bBuf) - bBuf); + sqlite3_result_blob(context, bBuf, nb, sqlite3_free); + break; + default: + sqlite3_result_error(context, "base85 accepts only blob or text.", -1); + return; + } + return; + memFail: + sqlite3_result_error(context, "base85 OOM", -1); +} + +/* +** Establish linkage to running SQLite library. +*/ +#ifndef SQLITE_SHELL_EXTFUNCS +#ifdef _WIN32 + +#endif +int sqlite3_base_init +#else +static int sqlite3_base85_init +#endif +(sqlite3 *db, char **pzErr, const sqlite3_api_routines *pApi){ + SQLITE_EXTENSION_INIT2(pApi); + (void)pzErr; +# ifndef OMIT_BASE85_CHECKER + { + int rc = sqlite3_create_function + (db, "is_base85", 1, + SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS|SQLITE_UTF8, + 0, is_base85, 0, 0); + if( rc!=SQLITE_OK ) return rc; + } +# endif + return sqlite3_create_function + (db, "base85", 1, + SQLITE_DETERMINISTIC|SQLITE_INNOCUOUS|SQLITE_DIRECTONLY|SQLITE_UTF8, + 0, base85, 0, 0); +} + +/* +** Define some macros to allow this extension to be built into the shell +** conveniently, in conjunction with use of SQLITE_SHELL_EXTFUNCS. This +** allows shell.c, as distributed, to have this extension built in. +*/ +# define BASE85_INIT(db) sqlite3_base85_init(db, 0, 0) +# define BASE85_EXPOSE(db, pzErr) /* Not needed, ..._init() does this. */ + +#else /* standalone program */ + +int main(int na, char *av[]){ + int cin; + int rc = 0; + u8 bBuf[4*(B85_DARK_MAX/5)]; + char cBuf[5*(sizeof(bBuf)/4)+2]; + size_t nio; +# ifndef OMIT_BASE85_CHECKER + int b85Clean = 1; +# endif + char rw; + FILE *fb = 0, *foc = 0; + char fmode[3] = "xb"; + if( na < 3 || av[1][0]!='-' || (rw = av[1][1])==0 || (rw!='r' && rw!='w') ){ + sayHelp(); + return 0; + } + fmode[0] = rw; + if( av[2][0]=='-' && av[2][1]==0 ){ + switch( rw ){ + case 'r': + fb = stdin; + setmode(fileno(stdin), O_BINARY); + break; + case 'w': + fb = stdout; + setmode(fileno(stdout), O_BINARY); + break; + } + }else{ + fb = fopen(av[2], fmode); + foc = fb; + } + if( !fb ){ + fprintf(stderr, "Cannot open %s for %c\n", av[2], rw); + rc = 1; + }else{ + switch( rw ){ + case 'r': + while( (nio = fread( bBuf, 1, sizeof(bBuf), fb))>0 ){ + toBase85( bBuf, (int)nio, cBuf, 0 ); + fprintf(stdout, "%s\n", cBuf); + } + break; + case 'w': + while( 0 != fgets(cBuf, sizeof(cBuf), stdin) ){ + int nc = strlen(cBuf); + size_t nbo = fromBase85( cBuf, nc, bBuf ) - bBuf; + if( 1 != fwrite(bBuf, nbo, 1, fb) ) rc = 1; +# ifndef OMIT_BASE85_CHECKER + b85Clean &= allBase85( cBuf, nc ); +# endif + } + break; + default: + sayHelp(); + rc = 1; + } + if( foc ) fclose(foc); + } +# ifndef OMIT_BASE85_CHECKER + if( !b85Clean ){ + fprintf(stderr, "Base85 input had non-base85 dark or control content.\n"); + } +# endif + return rc; +} + +#endif + +/************************* End ../ext/misc/base85.c ********************/ /************************* Begin ../ext/misc/ieee754.c ******************/ /* ** 2013-04-17 @@ -3796,6 +4649,7 @@ SQLITE_EXTENSION_INIT1 /* The end-of-input character */ #define RE_EOF 0 /* End of input */ +#define RE_START 0xfffffff /* Start of input - larger than an UTF-8 */ /* The NFA is implemented as sequence of opcodes taken from the following ** set. Each opcode has a single integer argument. @@ -3817,6 +4671,33 @@ SQLITE_EXTENSION_INIT1 #define RE_OP_SPACE 15 /* space: [ \t\n\r\v\f] */ #define RE_OP_NOTSPACE 16 /* Not a digit */ #define RE_OP_BOUNDARY 17 /* Boundary between word and non-word */ +#define RE_OP_ATSTART 18 /* Currently at the start of the string */ + +#if defined(SQLITE_DEBUG) +/* Opcode names used for symbolic debugging */ +static const char *ReOpName[] = { + "EOF", + "MATCH", + "ANY", + "ANYSTAR", + "FORK", + "GOTO", + "ACCEPT", + "CC_INC", + "CC_EXC", + "CC_VALUE", + "CC_RANGE", + "WORD", + "NOTWORD", + "DIGIT", + "NOTDIGIT", + "SPACE", + "NOTSPACE", + "BOUNDARY", + "ATSTART", +}; +#endif /* SQLITE_DEBUG */ + /* Each opcode is a "state" in the NFA */ typedef unsigned short ReStateNumber; @@ -3851,7 +4732,7 @@ struct ReCompiled { int *aArg; /* Arguments to each operator */ unsigned (*xNextChar)(ReInput*); /* Next character function */ unsigned char zInit[12]; /* Initial text to match */ - int nInit; /* Number of characters in zInit */ + int nInit; /* Number of bytes in zInit */ unsigned nState; /* Number of entries in aOp[] and aArg[] */ unsigned nAlloc; /* Slots allocated for aOp[] and aArg[] */ }; @@ -3881,7 +4762,7 @@ static unsigned re_next_char(ReInput *p){ c = (c&0x0f)<<12 | ((p->z[p->i]&0x3f)<<6) | (p->z[p->i+1]&0x3f); p->i += 2; if( c<=0x7ff || (c>=0xd800 && c<=0xdfff) ) c = 0xfffd; - }else if( (c&0xf8)==0xf0 && p->i+3<p->mx && (p->z[p->i]&0xc0)==0x80 + }else if( (c&0xf8)==0xf0 && p->i+2<p->mx && (p->z[p->i]&0xc0)==0x80 && (p->z[p->i+1]&0xc0)==0x80 && (p->z[p->i+2]&0xc0)==0x80 ){ c = (c&0x07)<<18 | ((p->z[p->i]&0x3f)<<12) | ((p->z[p->i+1]&0x3f)<<6) | (p->z[p->i+2]&0x3f); @@ -3924,7 +4805,7 @@ static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){ ReStateNumber *pToFree; unsigned int i = 0; unsigned int iSwap = 0; - int c = RE_EOF+1; + int c = RE_START; int cPrev = 0; int rc = 0; ReInput in; @@ -3943,6 +4824,7 @@ static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){ in.i++; } if( in.i+pRe->nInit>in.mx ) return 0; + c = RE_START-1; } if( pRe->nState<=(sizeof(aSpace)/(sizeof(aSpace[0])*2)) ){ @@ -3971,6 +4853,10 @@ static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){ if( pRe->aArg[x]==c ) re_add_state(pNext, x+1); break; } + case RE_OP_ATSTART: { + if( cPrev==RE_START ) re_add_state(pThis, x+1); + break; + } case RE_OP_ANY: { if( c!=0 ) re_add_state(pNext, x+1); break; @@ -4052,7 +4938,9 @@ static int re_match(ReCompiled *pRe, const unsigned char *zIn, int nIn){ } } for(i=0; i<pNext->nState; i++){ - if( pRe->aOp[pNext->aState[i]]==RE_OP_ACCEPT ){ rc = 1; break; } + int x = pNext->aState[i]; + while( pRe->aOp[x]==RE_OP_GOTO ) x += pRe->aArg[x]; + if( pRe->aOp[x]==RE_OP_ACCEPT ){ rc = 1; break; } } re_match_end: sqlite3_free(pToFree); @@ -4207,7 +5095,6 @@ static const char *re_subcompile_string(ReCompiled *p){ iStart = p->nState; switch( c ){ case '|': - case '$': case ')': { p->sIn.i--; return 0; @@ -4244,6 +5131,14 @@ static const char *re_subcompile_string(ReCompiled *p){ re_insert(p, iPrev, RE_OP_FORK, p->nState - iPrev+1); break; } + case '$': { + re_append(p, RE_OP_MATCH, RE_EOF); + break; + } + case '^': { + re_append(p, RE_OP_ATSTART, 0); + break; + } case '{': { int m = 0, n = 0; int sz, j; @@ -4262,6 +5157,7 @@ static const char *re_subcompile_string(ReCompiled *p){ if( m==0 ){ if( n==0 ) return "both m and n are zero in '{m,n}'"; re_insert(p, iPrev, RE_OP_FORK, sz+1); + iPrev++; n--; }else{ for(j=1; j<m; j++) re_copy(p, iPrev, sz); @@ -4380,11 +5276,7 @@ static const char *re_compile(ReCompiled **ppRe, const char *zIn, int noCase){ re_free(pRe); return zErr; } - if( rePeek(pRe)=='$' && pRe->sIn.i+1>=pRe->sIn.mx ){ - re_append(pRe, RE_OP_MATCH, RE_EOF); - re_append(pRe, RE_OP_ACCEPT, 0); - *ppRe = pRe; - }else if( pRe->sIn.i>=pRe->sIn.mx ){ + if( pRe->sIn.i>=pRe->sIn.mx ){ re_append(pRe, RE_OP_ACCEPT, 0); *ppRe = pRe; }else{ @@ -4397,15 +5289,15 @@ static const char *re_compile(ReCompiled **ppRe, const char *zIn, int noCase){ ** one or more matching characters, enter those matching characters into ** zInit[]. The re_match() routine can then search ahead in the input ** string looking for the initial match without having to run the whole - ** regex engine over the string. Do not worry able trying to match + ** regex engine over the string. Do not worry about trying to match ** unicode characters beyond plane 0 - those are very rare and this is ** just an optimization. */ if( pRe->aOp[0]==RE_OP_ANYSTAR && !noCase ){ for(j=0, i=1; j<(int)sizeof(pRe->zInit)-2 && pRe->aOp[i]==RE_OP_MATCH; i++){ unsigned x = pRe->aArg[i]; - if( x<=127 ){ + if( x<=0x7f ){ pRe->zInit[j++] = (unsigned char)x; - }else if( x<=0xfff ){ + }else if( x<=0x7ff ){ pRe->zInit[j++] = (unsigned char)(0xc0 | (x>>6)); pRe->zInit[j++] = 0x80 | (x&0x3f); }else if( x<=0xffff ){ @@ -4468,6 +5360,68 @@ static void re_sql_func( } } +#if defined(SQLITE_DEBUG) +/* +** This function is used for testing and debugging only. It is only available +** if the SQLITE_DEBUG compile-time option is used. +** +** Compile a regular expression and then convert the compiled expression into +** text and return that text. +*/ +static void re_bytecode_func( + sqlite3_context *context, + int argc, + sqlite3_value **argv +){ + const char *zPattern; + const char *zErr; + ReCompiled *pRe; + sqlite3_str *pStr; + int i; + int n; + char *z; + (void)argc; + + zPattern = (const char*)sqlite3_value_text(argv[0]); + if( zPattern==0 ) return; + zErr = re_compile(&pRe, zPattern, sqlite3_user_data(context)!=0); + if( zErr ){ + re_free(pRe); + sqlite3_result_error(context, zErr, -1); + return; + } + if( pRe==0 ){ + sqlite3_result_error_nomem(context); + return; + } + pStr = sqlite3_str_new(0); + if( pStr==0 ) goto re_bytecode_func_err; + if( pRe->nInit>0 ){ + sqlite3_str_appendf(pStr, "INIT "); + for(i=0; i<pRe->nInit; i++){ + sqlite3_str_appendf(pStr, "%02x", pRe->zInit[i]); + } + sqlite3_str_appendf(pStr, "\n"); + } + for(i=0; (unsigned)i<pRe->nState; i++){ + sqlite3_str_appendf(pStr, "%-8s %4d\n", + ReOpName[(unsigned char)pRe->aOp[i]], pRe->aArg[i]); + } + n = sqlite3_str_length(pStr); + z = sqlite3_str_finish(pStr); + if( n==0 ){ + sqlite3_free(z); + }else{ + sqlite3_result_text(context, z, n-1, sqlite3_free); + } + +re_bytecode_func_err: + re_free(pRe); +} + +#endif /* SQLITE_DEBUG */ + + /* ** Invoke this routine to register the regexp() function with the ** SQLite database connection. @@ -4492,12 +5446,19 @@ int sqlite3_regexp_init( rc = sqlite3_create_function(db, "regexpi", 2, SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC, (void*)db, re_sql_func, 0, 0); +#if defined(SQLITE_DEBUG) + if( rc==SQLITE_OK ){ + rc = sqlite3_create_function(db, "regexp_bytecode", 1, + SQLITE_UTF8|SQLITE_INNOCUOUS|SQLITE_DETERMINISTIC, + 0, re_bytecode_func, 0, 0); + } +#endif /* SQLITE_DEBUG */ } return rc; } /************************* End ../ext/misc/regexp.c ********************/ -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE /************************* Begin ../ext/misc/fileio.c ******************/ /* ** 2014-06-13 @@ -6767,8 +7728,8 @@ SQLITE_EXTENSION_INIT1 #endif /* typedef sqlite3_int64 i64; */ /* typedef unsigned char u8; */ -typedef UINT32_TYPE u32; /* 4-byte unsigned integer */ -typedef UINT16_TYPE u16; /* 2-byte unsigned integer */ +/* typedef UINT32_TYPE u32; // 4-byte unsigned integer // */ +/* typedef UINT16_TYPE u16; // 2-byte unsigned integer // */ #define MIN(a,b) ((a)<(b) ? (a) : (b)) #if defined(SQLITE_COVERAGE_TEST) || defined(SQLITE_MUTATION_TEST) @@ -7067,6 +8028,7 @@ static int zipfileConnect( const char *zFile = 0; ZipfileTab *pNew = 0; int rc; + (void)pAux; /* If the table name is not "zipfile", require that the argument be ** specified. This stops zipfile tables from being created as: @@ -7523,6 +8485,7 @@ static int zipfileGetEntry( u8 *aRead; char **pzErr = &pTab->base.zErrMsg; int rc = SQLITE_OK; + (void)nBlob; if( aBlob==0 ){ aRead = pTab->aBuffer; @@ -7969,6 +8932,9 @@ static int zipfileFilter( int rc = SQLITE_OK; /* Return Code */ int bInMemory = 0; /* True for an in-memory zipfile */ + (void)idxStr; + (void)argc; + zipfileResetCursor(pCsr); if( pTab->zFile ){ @@ -7995,7 +8961,7 @@ static int zipfileFilter( } if( 0==pTab->pWriteFd && 0==bInMemory ){ - pCsr->pFile = fopen(zFile, "rb"); + pCsr->pFile = zFile ? fopen(zFile, "rb") : 0; if( pCsr->pFile==0 ){ zipfileCursorErr(pCsr, "cannot open file: %s", zFile); rc = SQLITE_ERROR; @@ -8029,6 +8995,7 @@ static int zipfileBestIndex( int i; int idx = -1; int unusable = 0; + (void)tab; for(i=0; i<pIdxInfo->nConstraint; i++){ const struct sqlite3_index_constraint *pCons = &pIdxInfo->aConstraint[i]; @@ -8279,6 +9246,8 @@ static int zipfileUpdate( int bIsDir = 0; u32 iCrc32 = 0; + (void)pRowid; + if( pTab->pWriteFd==0 ){ rc = zipfileBegin(pVtab); if( rc!=SQLITE_OK ) return rc; @@ -8613,6 +9582,7 @@ static int zipfileFindFunction( void (**pxFunc)(sqlite3_context*,int,sqlite3_value**), /* OUT: Result */ void **ppArg /* OUT: User data for *pxFunc */ ){ + (void)nArg; if( sqlite3_stricmp("zipfile_cds", zName)==0 ){ *pxFunc = zipfileFunctionCds; *ppArg = (void*)pVtab; @@ -9021,7 +9991,9 @@ static void sqlarUncompressFunc( }else{ const Bytef *pData= sqlite3_value_blob(argv[0]); Bytef *pOut = sqlite3_malloc(sz); - if( Z_OK!=uncompress(pOut, &sz, pData, nData) ){ + if( pOut==0 ){ + sqlite3_result_error_nomem(context); + }else if( Z_OK!=uncompress(pOut, &sz, pData, nData) ){ sqlite3_result_error(context, "error in uncompress()", -1); }else{ sqlite3_result_blob(context, pOut, sz, SQLITE_TRANSIENT); @@ -9030,7 +10002,6 @@ static void sqlarUncompressFunc( } } - #ifdef _WIN32 #endif @@ -10049,6 +11020,10 @@ static char *idxAppendText(int *pRc, char *zIn, const char *zFmt, ...){ */ static int idxIdentifierRequiresQuotes(const char *zId){ int i; + int nId = STRLEN(zId); + + if( sqlite3_keyword_check(zId, nId) ) return 1; + for(i=0; zId[i]; i++){ if( !(zId[i]=='_') && !(zId[i]>='0' && zId[i]<='9') @@ -11275,7 +12250,265 @@ void sqlite3_expert_destroy(sqlite3expert *p){ /************************* End ../ext/expert/sqlite3expert.c ********************/ #if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_ENABLE_DBPAGE_VTAB) -/************************* Begin ../ext/misc/dbdata.c ******************/ +#define SQLITE_SHELL_HAVE_RECOVER 1 +#else +#define SQLITE_SHELL_HAVE_RECOVER 0 +#endif +#if SQLITE_SHELL_HAVE_RECOVER +/************************* Begin ../ext/recover/sqlite3recover.h ******************/ +/* +** 2022-08-27 +** +** The author disclaims copyright to this source code. In place of +** a legal notice, here is a blessing: +** +** May you do good and not evil. +** May you find forgiveness for yourself and forgive others. +** May you share freely, never taking more than you give. +** +************************************************************************* +** +** This file contains the public interface to the "recover" extension - +** an SQLite extension designed to recover data from corrupted database +** files. +*/ + +/* +** OVERVIEW: +** +** To use the API to recover data from a corrupted database, an +** application: +** +** 1) Creates an sqlite3_recover handle by calling either +** sqlite3_recover_init() or sqlite3_recover_init_sql(). +** +** 2) Configures the new handle using one or more calls to +** sqlite3_recover_config(). +** +** 3) Executes the recovery by repeatedly calling sqlite3_recover_step() on +** the handle until it returns something other than SQLITE_OK. If it +** returns SQLITE_DONE, then the recovery operation completed without +** error. If it returns some other non-SQLITE_OK value, then an error +** has occurred. +** +** 4) Retrieves any error code and English language error message using the +** sqlite3_recover_errcode() and sqlite3_recover_errmsg() APIs, +** respectively. +** +** 5) Destroys the sqlite3_recover handle and frees all resources +** using sqlite3_recover_finish(). +** +** The application may abandon the recovery operation at any point +** before it is finished by passing the sqlite3_recover handle to +** sqlite3_recover_finish(). This is not an error, but the final state +** of the output database, or the results of running the partial script +** delivered to the SQL callback, are undefined. +*/ + +#ifndef _SQLITE_RECOVER_H +#define _SQLITE_RECOVER_H + +/* #include "sqlite3.h" */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* +** An instance of the sqlite3_recover object represents a recovery +** operation in progress. +** +** Constructors: +** +** sqlite3_recover_init() +** sqlite3_recover_init_sql() +** +** Destructor: +** +** sqlite3_recover_finish() +** +** Methods: +** +** sqlite3_recover_config() +** sqlite3_recover_errcode() +** sqlite3_recover_errmsg() +** sqlite3_recover_run() +** sqlite3_recover_step() +*/ +typedef struct sqlite3_recover sqlite3_recover; + +/* +** These two APIs attempt to create and return a new sqlite3_recover object. +** In both cases the first two arguments identify the (possibly +** corrupt) database to recover data from. The first argument is an open +** database handle and the second the name of a database attached to that +** handle (i.e. "main", "temp" or the name of an attached database). +** +** If sqlite3_recover_init() is used to create the new sqlite3_recover +** handle, then data is recovered into a new database, identified by +** string parameter zUri. zUri may be an absolute or relative file path, +** or may be an SQLite URI. If the identified database file already exists, +** it is overwritten. +** +** If sqlite3_recover_init_sql() is invoked, then any recovered data will +** be returned to the user as a series of SQL statements. Executing these +** SQL statements results in the same database as would have been created +** had sqlite3_recover_init() been used. For each SQL statement in the +** output, the callback function passed as the third argument (xSql) is +** invoked once. The first parameter is a passed a copy of the fourth argument +** to this function (pCtx) as its first parameter, and a pointer to a +** nul-terminated buffer containing the SQL statement formated as UTF-8 as +** the second. If the xSql callback returns any value other than SQLITE_OK, +** then processing is immediately abandoned and the value returned used as +** the recover handle error code (see below). +** +** If an out-of-memory error occurs, NULL may be returned instead of +** a valid handle. In all other cases, it is the responsibility of the +** application to avoid resource leaks by ensuring that +** sqlite3_recover_finish() is called on all allocated handles. +*/ +sqlite3_recover *sqlite3_recover_init( + sqlite3* db, + const char *zDb, + const char *zUri +); +sqlite3_recover *sqlite3_recover_init_sql( + sqlite3* db, + const char *zDb, + int (*xSql)(void*, const char*), + void *pCtx +); + +/* +** Configure an sqlite3_recover object that has just been created using +** sqlite3_recover_init() or sqlite3_recover_init_sql(). This function +** may only be called before the first call to sqlite3_recover_step() +** or sqlite3_recover_run() on the object. +** +** The second argument passed to this function must be one of the +** SQLITE_RECOVER_* symbols defined below. Valid values for the third argument +** depend on the specific SQLITE_RECOVER_* symbol in use. +** +** SQLITE_OK is returned if the configuration operation was successful, +** or an SQLite error code otherwise. +*/ +int sqlite3_recover_config(sqlite3_recover*, int op, void *pArg); + +/* +** SQLITE_RECOVER_LOST_AND_FOUND: +** The pArg argument points to a string buffer containing the name +** of a "lost-and-found" table in the output database, or NULL. If +** the argument is non-NULL and the database contains seemingly +** valid pages that cannot be associated with any table in the +** recovered part of the schema, data is extracted from these +** pages to add to the lost-and-found table. +** +** SQLITE_RECOVER_FREELIST_CORRUPT: +** The pArg value must actually be a pointer to a value of type +** int containing value 0 or 1 cast as a (void*). If this option is set +** (argument is 1) and a lost-and-found table has been configured using +** SQLITE_RECOVER_LOST_AND_FOUND, then is assumed that the freelist is +** corrupt and an attempt is made to recover records from pages that +** appear to be linked into the freelist. Otherwise, pages on the freelist +** are ignored. Setting this option can recover more data from the +** database, but often ends up "recovering" deleted records. The default +** value is 0 (clear). +** +** SQLITE_RECOVER_ROWIDS: +** The pArg value must actually be a pointer to a value of type +** int containing value 0 or 1 cast as a (void*). If this option is set +** (argument is 1), then an attempt is made to recover rowid values +** that are not also INTEGER PRIMARY KEY values. If this option is +** clear, then new rowids are assigned to all recovered rows. The +** default value is 1 (set). +** +** SQLITE_RECOVER_SLOWINDEXES: +** The pArg value must actually be a pointer to a value of type +** int containing value 0 or 1 cast as a (void*). If this option is clear +** (argument is 0), then when creating an output database, the recover +** module creates and populates non-UNIQUE indexes right at the end of the +** recovery operation - after all recoverable data has been inserted +** into the new database. This is faster overall, but means that the +** final call to sqlite3_recover_step() for a recovery operation may +** be need to create a large number of indexes, which may be very slow. +** +** Or, if this option is set (argument is 1), then non-UNIQUE indexes +** are created in the output database before it is populated with +** recovered data. This is slower overall, but avoids the slow call +** to sqlite3_recover_step() at the end of the recovery operation. +** +** The default option value is 0. +*/ +#define SQLITE_RECOVER_LOST_AND_FOUND 1 +#define SQLITE_RECOVER_FREELIST_CORRUPT 2 +#define SQLITE_RECOVER_ROWIDS 3 +#define SQLITE_RECOVER_SLOWINDEXES 4 + +/* +** Perform a unit of work towards the recovery operation. This function +** must normally be called multiple times to complete database recovery. +** +** If no error occurs but the recovery operation is not completed, this +** function returns SQLITE_OK. If recovery has been completed successfully +** then SQLITE_DONE is returned. If an error has occurred, then an SQLite +** error code (e.g. SQLITE_IOERR or SQLITE_NOMEM) is returned. It is not +** considered an error if some or all of the data cannot be recovered +** due to database corruption. +** +** Once sqlite3_recover_step() has returned a value other than SQLITE_OK, +** all further such calls on the same recover handle are no-ops that return +** the same non-SQLITE_OK value. +*/ +int sqlite3_recover_step(sqlite3_recover*); + +/* +** Run the recovery operation to completion. Return SQLITE_OK if successful, +** or an SQLite error code otherwise. Calling this function is the same +** as executing: +** +** while( SQLITE_OK==sqlite3_recover_step(p) ); +** return sqlite3_recover_errcode(p); +*/ +int sqlite3_recover_run(sqlite3_recover*); + +/* +** If an error has been encountered during a prior call to +** sqlite3_recover_step(), then this function attempts to return a +** pointer to a buffer containing an English language explanation of +** the error. If no error message is available, or if an out-of memory +** error occurs while attempting to allocate a buffer in which to format +** the error message, NULL is returned. +** +** The returned buffer remains valid until the sqlite3_recover handle is +** destroyed using sqlite3_recover_finish(). +*/ +const char *sqlite3_recover_errmsg(sqlite3_recover*); + +/* +** If this function is called on an sqlite3_recover handle after +** an error occurs, an SQLite error code is returned. Otherwise, SQLITE_OK. +*/ +int sqlite3_recover_errcode(sqlite3_recover*); + +/* +** Clean up a recovery object created by a call to sqlite3_recover_init(). +** The results of using a recovery object with any API after it has been +** passed to this function are undefined. +** +** This function returns the same value as sqlite3_recover_errcode(). +*/ +int sqlite3_recover_finish(sqlite3_recover*); + + +#ifdef __cplusplus +} /* end of the 'extern "C"' block */ +#endif + +#endif /* ifndef _SQLITE_RECOVER_H */ + +/************************* End ../ext/recover/sqlite3recover.h ********************/ +# ifndef SQLITE_HAVE_SQLITE3R +/************************* Begin ../ext/recover/dbdata.c ******************/ /* ** 2019-04-17 ** @@ -11349,16 +12582,20 @@ void sqlite3_expert_destroy(sqlite3expert *p){ ** It contains one entry for each b-tree pointer between a parent and ** child page in the database. */ + #if !defined(SQLITEINT_H) /* #include "sqlite3ext.h" */ /* typedef unsigned char u8; */ +/* typedef unsigned int u32; */ #endif SQLITE_EXTENSION_INIT1 #include <string.h> #include <assert.h> +#ifndef SQLITE_OMIT_VIRTUALTABLE + #define DBDATA_PADDING_BYTES 100 typedef struct DbdataTable DbdataTable; @@ -11380,11 +12617,12 @@ struct DbdataCursor { /* Only for the sqlite_dbdata table */ u8 *pRec; /* Buffer containing current record */ - int nRec; /* Size of pRec[] in bytes */ - int nHdr; /* Size of header in bytes */ + sqlite3_int64 nRec; /* Size of pRec[] in bytes */ + sqlite3_int64 nHdr; /* Size of header in bytes */ int iField; /* Current field number */ u8 *pHdrPtr; u8 *pPtr; + u32 enc; /* Text encoding */ sqlite3_int64 iIntkey; /* Integer key value */ }; @@ -11437,6 +12675,9 @@ static int dbdataConnect( DbdataTable *pTab = 0; int rc = sqlite3_declare_vtab(db, pAux ? DBPTR_SCHEMA : DBDATA_SCHEMA); + (void)argc; + (void)argv; + (void)pzErr; if( rc==SQLITE_OK ){ pTab = (DbdataTable*)sqlite3_malloc64(sizeof(DbdataTable)); if( pTab==0 ){ @@ -11577,14 +12818,14 @@ static int dbdataClose(sqlite3_vtab_cursor *pCursor){ /* ** Utility methods to decode 16 and 32-bit big-endian unsigned integers. */ -static unsigned int get_uint16(unsigned char *a){ +static u32 get_uint16(unsigned char *a){ return (a[0]<<8)|a[1]; } -static unsigned int get_uint32(unsigned char *a){ - return ((unsigned int)a[0]<<24) - | ((unsigned int)a[1]<<16) - | ((unsigned int)a[2]<<8) - | ((unsigned int)a[3]); +static u32 get_uint32(unsigned char *a){ + return ((u32)a[0]<<24) + | ((u32)a[1]<<16) + | ((u32)a[2]<<8) + | ((u32)a[3]); } /* @@ -11599,7 +12840,7 @@ static unsigned int get_uint32(unsigned char *a){ */ static int dbdataLoadPage( DbdataCursor *pCsr, /* Cursor object */ - unsigned int pgno, /* Page number of page to load */ + u32 pgno, /* Page number of page to load */ u8 **ppPage, /* OUT: pointer to page buffer */ int *pnPage /* OUT: Size of (*ppPage) in bytes */ ){ @@ -11609,25 +12850,27 @@ static int dbdataLoadPage( *ppPage = 0; *pnPage = 0; - sqlite3_bind_int64(pStmt, 2, pgno); - if( SQLITE_ROW==sqlite3_step(pStmt) ){ - int nCopy = sqlite3_column_bytes(pStmt, 0); - if( nCopy>0 ){ - u8 *pPage; - pPage = (u8*)sqlite3_malloc64(nCopy + DBDATA_PADDING_BYTES); - if( pPage==0 ){ - rc = SQLITE_NOMEM; - }else{ - const u8 *pCopy = sqlite3_column_blob(pStmt, 0); - memcpy(pPage, pCopy, nCopy); - memset(&pPage[nCopy], 0, DBDATA_PADDING_BYTES); + if( pgno>0 ){ + sqlite3_bind_int64(pStmt, 2, pgno); + if( SQLITE_ROW==sqlite3_step(pStmt) ){ + int nCopy = sqlite3_column_bytes(pStmt, 0); + if( nCopy>0 ){ + u8 *pPage; + pPage = (u8*)sqlite3_malloc64(nCopy + DBDATA_PADDING_BYTES); + if( pPage==0 ){ + rc = SQLITE_NOMEM; + }else{ + const u8 *pCopy = sqlite3_column_blob(pStmt, 0); + memcpy(pPage, pCopy, nCopy); + memset(&pPage[nCopy], 0, DBDATA_PADDING_BYTES); + } + *ppPage = pPage; + *pnPage = nCopy; } - *ppPage = pPage; - *pnPage = nCopy; } + rc2 = sqlite3_reset(pStmt); + if( rc==SQLITE_OK ) rc = rc2; } - rc2 = sqlite3_reset(pStmt); - if( rc==SQLITE_OK ) rc = rc2; return rc; } @@ -11636,18 +12879,31 @@ static int dbdataLoadPage( ** Read a varint. Put the value in *pVal and return the number of bytes. */ static int dbdataGetVarint(const u8 *z, sqlite3_int64 *pVal){ - sqlite3_int64 v = 0; + sqlite3_uint64 u = 0; int i; for(i=0; i<8; i++){ - v = (v<<7) + (z[i]&0x7f); - if( (z[i]&0x80)==0 ){ *pVal = v; return i+1; } + u = (u<<7) + (z[i]&0x7f); + if( (z[i]&0x80)==0 ){ *pVal = (sqlite3_int64)u; return i+1; } } - v = (v<<8) + (z[i]&0xff); - *pVal = v; + u = (u<<8) + (z[i]&0xff); + *pVal = (sqlite3_int64)u; return 9; } /* +** Like dbdataGetVarint(), but set the output to 0 if it is less than 0 +** or greater than 0xFFFFFFFF. This can be used for all varints in an +** SQLite database except for key values in intkey tables. +*/ +static int dbdataGetVarintU32(const u8 *z, sqlite3_int64 *pVal){ + sqlite3_int64 val; + int nRet = dbdataGetVarint(z, &val); + if( val<0 || val>0xFFFFFFFF ) val = 0; + *pVal = val; + return nRet; +} + +/* ** Return the number of bytes of space used by an SQLite value of type ** eType. */ @@ -11683,9 +12939,10 @@ static int dbdataValueBytes(int eType){ */ static void dbdataValue( sqlite3_context *pCtx, + u32 enc, int eType, u8 *pData, - int nData + sqlite3_int64 nData ){ if( eType>=0 && dbdataValueBytes(eType)<=nData ){ switch( eType ){ @@ -11727,7 +12984,19 @@ static void dbdataValue( default: { int n = ((eType-12) / 2); if( eType % 2 ){ - sqlite3_result_text(pCtx, (const char*)pData, n, SQLITE_TRANSIENT); + switch( enc ){ +#ifndef SQLITE_OMIT_UTF16 + case SQLITE_UTF16BE: + sqlite3_result_text16be(pCtx, (void*)pData, n, SQLITE_TRANSIENT); + break; + case SQLITE_UTF16LE: + sqlite3_result_text16le(pCtx, (void*)pData, n, SQLITE_TRANSIENT); + break; +#endif + default: + sqlite3_result_text(pCtx, (char*)pData, n, SQLITE_TRANSIENT); + break; + } }else{ sqlite3_result_blob(pCtx, pData, n, SQLITE_TRANSIENT); } @@ -11754,9 +13023,14 @@ static int dbdataNext(sqlite3_vtab_cursor *pCursor){ if( pCsr->bOnePage==0 && pCsr->iPgno>pCsr->szDb ) return SQLITE_OK; rc = dbdataLoadPage(pCsr, pCsr->iPgno, &pCsr->aPage, &pCsr->nPage); if( rc!=SQLITE_OK ) return rc; - if( pCsr->aPage ) break; + if( pCsr->aPage && pCsr->nPage>=256 ) break; + sqlite3_free(pCsr->aPage); + pCsr->aPage = 0; + if( pCsr->bOnePage ) return SQLITE_OK; pCsr->iPgno++; } + + assert( iOff+3+2<=pCsr->nPage ); pCsr->iCell = pTab->bPtr ? -2 : 0; pCsr->nCell = get_uint16(&pCsr->aPage[iOff+3]); } @@ -11818,7 +13092,7 @@ static int dbdataNext(sqlite3_vtab_cursor *pCursor){ if( bNextPage || iOff>pCsr->nPage ){ bNextPage = 1; }else{ - iOff += dbdataGetVarint(&pCsr->aPage[iOff], &nPayload); + iOff += dbdataGetVarintU32(&pCsr->aPage[iOff], &nPayload); } /* If this is a leaf intkey cell, load the rowid */ @@ -11865,7 +13139,7 @@ static int dbdataNext(sqlite3_vtab_cursor *pCursor){ /* Load content from overflow pages */ if( nPayload>nLocal ){ sqlite3_int64 nRem = nPayload - nLocal; - unsigned int pgnoOvfl = get_uint32(&pCsr->aPage[iOff]); + u32 pgnoOvfl = get_uint32(&pCsr->aPage[iOff]); while( nRem>0 ){ u8 *aOvfl = 0; int nOvfl = 0; @@ -11885,7 +13159,8 @@ static int dbdataNext(sqlite3_vtab_cursor *pCursor){ } } - iHdr = dbdataGetVarint(pCsr->pRec, &nHdr); + iHdr = dbdataGetVarintU32(pCsr->pRec, &nHdr); + if( nHdr>nPayload ) nHdr = 0; pCsr->nHdr = nHdr; pCsr->pHdrPtr = &pCsr->pRec[iHdr]; pCsr->pPtr = &pCsr->pRec[pCsr->nHdr]; @@ -11899,7 +13174,7 @@ static int dbdataNext(sqlite3_vtab_cursor *pCursor){ if( pCsr->pHdrPtr>&pCsr->pRec[pCsr->nRec] ){ bNextPage = 1; }else{ - pCsr->pHdrPtr += dbdataGetVarint(pCsr->pHdrPtr, &iType); + pCsr->pHdrPtr += dbdataGetVarintU32(pCsr->pHdrPtr, &iType); pCsr->pPtr += dbdataValueBytes(iType); } } @@ -11938,6 +13213,18 @@ static int dbdataEof(sqlite3_vtab_cursor *pCursor){ return pCsr->aPage==0; } +/* +** Return true if nul-terminated string zSchema ends in "()". Or false +** otherwise. +*/ +static int dbdataIsFunction(const char *zSchema){ + size_t n = strlen(zSchema); + if( n>2 && zSchema[n-2]=='(' && zSchema[n-1]==')' ){ + return (int)n-2; + } + return 0; +} + /* ** Determine the size in pages of database zSchema (where zSchema is ** "main", "temp" or the name of an attached database) and set @@ -11948,10 +13235,16 @@ static int dbdataDbsize(DbdataCursor *pCsr, const char *zSchema){ DbdataTable *pTab = (DbdataTable*)pCsr->base.pVtab; char *zSql = 0; int rc, rc2; + int nFunc = 0; sqlite3_stmt *pStmt = 0; - zSql = sqlite3_mprintf("PRAGMA %Q.page_count", zSchema); + if( (nFunc = dbdataIsFunction(zSchema))>0 ){ + zSql = sqlite3_mprintf("SELECT %.*s(0)", nFunc, zSchema); + }else{ + zSql = sqlite3_mprintf("PRAGMA %Q.page_count", zSchema); + } if( zSql==0 ) return SQLITE_NOMEM; + rc = sqlite3_prepare_v2(pTab->db, zSql, -1, &pStmt, 0); sqlite3_free(zSql); if( rc==SQLITE_OK && sqlite3_step(pStmt)==SQLITE_ROW ){ @@ -11962,6 +13255,24 @@ static int dbdataDbsize(DbdataCursor *pCsr, const char *zSchema){ return rc; } +/* +** Attempt to figure out the encoding of the database by retrieving page 1 +** and inspecting the header field. If successful, set the pCsr->enc variable +** and return SQLITE_OK. Otherwise, return an SQLite error code. +*/ +static int dbdataGetEncoding(DbdataCursor *pCsr){ + int rc = SQLITE_OK; + int nPg1 = 0; + u8 *aPg1 = 0; + rc = dbdataLoadPage(pCsr, 1, &aPg1, &nPg1); + if( rc==SQLITE_OK && nPg1>=(56+4) ){ + pCsr->enc = get_uint32(&aPg1[56]); + } + sqlite3_free(aPg1); + return rc; +} + + /* ** xFilter method for sqlite_dbdata and sqlite_dbptr. */ @@ -11974,24 +13285,35 @@ static int dbdataFilter( DbdataTable *pTab = (DbdataTable*)pCursor->pVtab; int rc = SQLITE_OK; const char *zSchema = "main"; + (void)idxStr; + (void)argc; dbdataResetCursor(pCsr); assert( pCsr->iPgno==1 ); if( idxNum & 0x01 ){ zSchema = (const char*)sqlite3_value_text(argv[0]); + if( zSchema==0 ) zSchema = ""; } if( idxNum & 0x02 ){ pCsr->iPgno = sqlite3_value_int(argv[(idxNum & 0x01)]); pCsr->bOnePage = 1; }else{ - pCsr->nPage = dbdataDbsize(pCsr, zSchema); rc = dbdataDbsize(pCsr, zSchema); } if( rc==SQLITE_OK ){ + int nFunc = 0; if( pTab->pStmt ){ pCsr->pStmt = pTab->pStmt; pTab->pStmt = 0; + }else if( (nFunc = dbdataIsFunction(zSchema))>0 ){ + char *zSql = sqlite3_mprintf("SELECT %.*s(?2)", nFunc, zSchema); + if( zSql==0 ){ + rc = SQLITE_NOMEM; + }else{ + rc = sqlite3_prepare_v2(pTab->db, zSql, -1, &pCsr->pStmt, 0); + sqlite3_free(zSql); + } }else{ rc = sqlite3_prepare_v2(pTab->db, "SELECT data FROM sqlite_dbpage(?) WHERE pgno=?", -1, @@ -12004,13 +13326,20 @@ static int dbdataFilter( }else{ pTab->base.zErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(pTab->db)); } + + /* Try to determine the encoding of the db by inspecting the header + ** field on page 1. */ + if( rc==SQLITE_OK ){ + rc = dbdataGetEncoding(pCsr); + } + if( rc==SQLITE_OK ){ rc = dbdataNext(pCursor); } return rc; } -/* +/* ** Return a column for the sqlite_dbdata or sqlite_dbptr table. */ static int dbdataColumn( @@ -12054,11 +13383,12 @@ static int dbdataColumn( case DBDATA_COLUMN_VALUE: { if( pCsr->iField<0 ){ sqlite3_result_int64(ctx, pCsr->iIntkey); - }else{ + }else if( &pCsr->pRec[pCsr->nRec] >= pCsr->pPtr ){ sqlite3_int64 iType; - dbdataGetVarint(pCsr->pHdrPtr, &iType); + dbdataGetVarintU32(pCsr->pHdrPtr, &iType); dbdataValue( - ctx, iType, pCsr->pPtr, &pCsr->pRec[pCsr->nRec] - pCsr->pPtr + ctx, pCsr->enc, iType, pCsr->pPtr, + &pCsr->pRec[pCsr->nRec] - pCsr->pPtr ); } break; @@ -12125,10 +13455,2890 @@ int sqlite3_dbdata_init( const sqlite3_api_routines *pApi ){ SQLITE_EXTENSION_INIT2(pApi); + (void)pzErrMsg; return sqlite3DbdataRegister(db); } -/************************* End ../ext/misc/dbdata.c ********************/ +#endif /* ifndef SQLITE_OMIT_VIRTUALTABLE */ + +/************************* End ../ext/recover/dbdata.c ********************/ +/************************* Begin ../ext/recover/sqlite3recover.c ******************/ +/* +** 2022-08-27 +** +** The author disclaims copyright to this source code. In place of +** a legal notice, here is a blessing: +** +** May you do good and not evil. +** May you find forgiveness for yourself and forgive others. +** May you share freely, never taking more than you give. +** +************************************************************************* +** +*/ + + +/* #include "sqlite3recover.h" */ +#include <assert.h> +#include <string.h> + +#ifndef SQLITE_OMIT_VIRTUALTABLE + +/* +** Declaration for public API function in file dbdata.c. This may be called +** with NULL as the final two arguments to register the sqlite_dbptr and +** sqlite_dbdata virtual tables with a database handle. +*/ +#ifdef _WIN32 + +#endif +int sqlite3_dbdata_init(sqlite3*, char**, const sqlite3_api_routines*); + +/* typedef unsigned int u32; */ +/* typedef unsigned char u8; */ +/* typedef sqlite3_int64 i64; */ + +typedef struct RecoverTable RecoverTable; +typedef struct RecoverColumn RecoverColumn; + +/* +** When recovering rows of data that can be associated with table +** definitions recovered from the sqlite_schema table, each table is +** represented by an instance of the following object. +** +** iRoot: +** The root page in the original database. Not necessarily (and usually +** not) the same in the recovered database. +** +** zTab: +** Name of the table. +** +** nCol/aCol[]: +** aCol[] is an array of nCol columns. In the order in which they appear +** in the table. +** +** bIntkey: +** Set to true for intkey tables, false for WITHOUT ROWID. +** +** iRowidBind: +** Each column in the aCol[] array has associated with it the index of +** the bind parameter its values will be bound to in the INSERT statement +** used to construct the output database. If the table does has a rowid +** but not an INTEGER PRIMARY KEY column, then iRowidBind contains the +** index of the bind paramater to which the rowid value should be bound. +** Otherwise, it contains -1. If the table does contain an INTEGER PRIMARY +** KEY column, then the rowid value should be bound to the index associated +** with the column. +** +** pNext: +** All RecoverTable objects used by the recovery operation are allocated +** and populated as part of creating the recovered database schema in +** the output database, before any non-schema data are recovered. They +** are then stored in a singly-linked list linked by this variable beginning +** at sqlite3_recover.pTblList. +*/ +struct RecoverTable { + u32 iRoot; /* Root page in original database */ + char *zTab; /* Name of table */ + int nCol; /* Number of columns in table */ + RecoverColumn *aCol; /* Array of columns */ + int bIntkey; /* True for intkey, false for without rowid */ + int iRowidBind; /* If >0, bind rowid to INSERT here */ + RecoverTable *pNext; +}; + +/* +** Each database column is represented by an instance of the following object +** stored in the RecoverTable.aCol[] array of the associated table. +** +** iField: +** The index of the associated field within database records. Or -1 if +** there is no associated field (e.g. for virtual generated columns). +** +** iBind: +** The bind index of the INSERT statement to bind this columns values +** to. Or 0 if there is no such index (iff (iField<0)). +** +** bIPK: +** True if this is the INTEGER PRIMARY KEY column. +** +** zCol: +** Name of column. +** +** eHidden: +** A RECOVER_EHIDDEN_* constant value (see below for interpretation of each). +*/ +struct RecoverColumn { + int iField; /* Field in record on disk */ + int iBind; /* Binding to use in INSERT */ + int bIPK; /* True for IPK column */ + char *zCol; + int eHidden; +}; + +#define RECOVER_EHIDDEN_NONE 0 /* Normal database column */ +#define RECOVER_EHIDDEN_HIDDEN 1 /* Column is __HIDDEN__ */ +#define RECOVER_EHIDDEN_VIRTUAL 2 /* Virtual generated column */ +#define RECOVER_EHIDDEN_STORED 3 /* Stored generated column */ + +/* +** Bitmap object used to track pages in the input database. Allocated +** and manipulated only by the following functions: +** +** recoverBitmapAlloc() +** recoverBitmapFree() +** recoverBitmapSet() +** recoverBitmapQuery() +** +** nPg: +** Largest page number that may be stored in the bitmap. The range +** of valid keys is 1 to nPg, inclusive. +** +** aElem[]: +** Array large enough to contain a bit for each key. For key value +** iKey, the associated bit is the bit (iKey%32) of aElem[iKey/32]. +** In other words, the following is true if bit iKey is set, or +** false if it is clear: +** +** (aElem[iKey/32] & (1 << (iKey%32))) ? 1 : 0 +*/ +typedef struct RecoverBitmap RecoverBitmap; +struct RecoverBitmap { + i64 nPg; /* Size of bitmap */ + u32 aElem[1]; /* Array of 32-bit bitmasks */ +}; + +/* +** State variables (part of the sqlite3_recover structure) used while +** recovering data for tables identified in the recovered schema (state +** RECOVER_STATE_WRITING). +*/ +typedef struct RecoverStateW1 RecoverStateW1; +struct RecoverStateW1 { + sqlite3_stmt *pTbls; + sqlite3_stmt *pSel; + sqlite3_stmt *pInsert; + int nInsert; + + RecoverTable *pTab; /* Table currently being written */ + int nMax; /* Max column count in any schema table */ + sqlite3_value **apVal; /* Array of nMax values */ + int nVal; /* Number of valid entries in apVal[] */ + int bHaveRowid; + i64 iRowid; + i64 iPrevPage; + int iPrevCell; +}; + +/* +** State variables (part of the sqlite3_recover structure) used while +** recovering data destined for the lost and found table (states +** RECOVER_STATE_LOSTANDFOUND[123]). +*/ +typedef struct RecoverStateLAF RecoverStateLAF; +struct RecoverStateLAF { + RecoverBitmap *pUsed; + i64 nPg; /* Size of db in pages */ + sqlite3_stmt *pAllAndParent; + sqlite3_stmt *pMapInsert; + sqlite3_stmt *pMaxField; + sqlite3_stmt *pUsedPages; + sqlite3_stmt *pFindRoot; + sqlite3_stmt *pInsert; /* INSERT INTO lost_and_found ... */ + sqlite3_stmt *pAllPage; + sqlite3_stmt *pPageData; + sqlite3_value **apVal; + int nMaxField; +}; + +/* +** Main recover handle structure. +*/ +struct sqlite3_recover { + /* Copies of sqlite3_recover_init[_sql]() parameters */ + sqlite3 *dbIn; /* Input database */ + char *zDb; /* Name of input db ("main" etc.) */ + char *zUri; /* URI for output database */ + void *pSqlCtx; /* SQL callback context */ + int (*xSql)(void*,const char*); /* Pointer to SQL callback function */ + + /* Values configured by sqlite3_recover_config() */ + char *zStateDb; /* State database to use (or NULL) */ + char *zLostAndFound; /* Name of lost-and-found table (or NULL) */ + int bFreelistCorrupt; /* SQLITE_RECOVER_FREELIST_CORRUPT setting */ + int bRecoverRowid; /* SQLITE_RECOVER_ROWIDS setting */ + int bSlowIndexes; /* SQLITE_RECOVER_SLOWINDEXES setting */ + + int pgsz; + int detected_pgsz; + int nReserve; + u8 *pPage1Disk; + u8 *pPage1Cache; + + /* Error code and error message */ + int errCode; /* For sqlite3_recover_errcode() */ + char *zErrMsg; /* For sqlite3_recover_errmsg() */ + + int eState; + int bCloseTransaction; + + /* Variables used with eState==RECOVER_STATE_WRITING */ + RecoverStateW1 w1; + + /* Variables used with states RECOVER_STATE_LOSTANDFOUND[123] */ + RecoverStateLAF laf; + + /* Fields used within sqlite3_recover_run() */ + sqlite3 *dbOut; /* Output database */ + sqlite3_stmt *pGetPage; /* SELECT against input db sqlite_dbdata */ + RecoverTable *pTblList; /* List of tables recovered from schema */ +}; + +/* +** The various states in which an sqlite3_recover object may exist: +** +** RECOVER_STATE_INIT: +** The object is initially created in this state. sqlite3_recover_step() +** has yet to be called. This is the only state in which it is permitted +** to call sqlite3_recover_config(). +** +** RECOVER_STATE_WRITING: +** +** RECOVER_STATE_LOSTANDFOUND1: +** State to populate the bitmap of pages used by other tables or the +** database freelist. +** +** RECOVER_STATE_LOSTANDFOUND2: +** Populate the recovery.map table - used to figure out a "root" page +** for each lost page from in the database from which records are +** extracted. +** +** RECOVER_STATE_LOSTANDFOUND3: +** Populate the lost-and-found table itself. +*/ +#define RECOVER_STATE_INIT 0 +#define RECOVER_STATE_WRITING 1 +#define RECOVER_STATE_LOSTANDFOUND1 2 +#define RECOVER_STATE_LOSTANDFOUND2 3 +#define RECOVER_STATE_LOSTANDFOUND3 4 +#define RECOVER_STATE_SCHEMA2 5 +#define RECOVER_STATE_DONE 6 + + +/* +** Global variables used by this extension. +*/ +typedef struct RecoverGlobal RecoverGlobal; +struct RecoverGlobal { + const sqlite3_io_methods *pMethods; + sqlite3_recover *p; +}; +static RecoverGlobal recover_g; + +/* +** Use this static SQLite mutex to protect the globals during the +** first call to sqlite3_recover_step(). +*/ +#define RECOVER_MUTEX_ID SQLITE_MUTEX_STATIC_APP2 + + +/* +** Default value for SQLITE_RECOVER_ROWIDS (sqlite3_recover.bRecoverRowid). +*/ +#define RECOVER_ROWID_DEFAULT 1 + +/* +** Mutex handling: +** +** recoverEnterMutex() - Enter the recovery mutex +** recoverLeaveMutex() - Leave the recovery mutex +** recoverAssertMutexHeld() - Assert that the recovery mutex is held +*/ +#if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE==0 +# define recoverEnterMutex() +# define recoverLeaveMutex() +#else +static void recoverEnterMutex(void){ + sqlite3_mutex_enter(sqlite3_mutex_alloc(RECOVER_MUTEX_ID)); +} +static void recoverLeaveMutex(void){ + sqlite3_mutex_leave(sqlite3_mutex_alloc(RECOVER_MUTEX_ID)); +} +#endif +#if SQLITE_THREADSAFE+0>=1 && defined(SQLITE_DEBUG) +static void recoverAssertMutexHeld(void){ + assert( sqlite3_mutex_held(sqlite3_mutex_alloc(RECOVER_MUTEX_ID)) ); +} +#else +# define recoverAssertMutexHeld() +#endif + + +/* +** Like strlen(). But handles NULL pointer arguments. +*/ +static int recoverStrlen(const char *zStr){ + if( zStr==0 ) return 0; + return (int)(strlen(zStr)&0x7fffffff); +} + +/* +** This function is a no-op if the recover handle passed as the first +** argument already contains an error (if p->errCode!=SQLITE_OK). +** +** Otherwise, an attempt is made to allocate, zero and return a buffer nByte +** bytes in size. If successful, a pointer to the new buffer is returned. Or, +** if an OOM error occurs, NULL is returned and the handle error code +** (p->errCode) set to SQLITE_NOMEM. +*/ +static void *recoverMalloc(sqlite3_recover *p, i64 nByte){ + void *pRet = 0; + assert( nByte>0 ); + if( p->errCode==SQLITE_OK ){ + pRet = sqlite3_malloc64(nByte); + if( pRet ){ + memset(pRet, 0, nByte); + }else{ + p->errCode = SQLITE_NOMEM; + } + } + return pRet; +} + +/* +** Set the error code and error message for the recover handle passed as +** the first argument. The error code is set to the value of parameter +** errCode. +** +** Parameter zFmt must be a printf() style formatting string. The handle +** error message is set to the result of using any trailing arguments for +** parameter substitutions in the formatting string. +** +** For example: +** +** recoverError(p, SQLITE_ERROR, "no such table: %s", zTablename); +*/ +static int recoverError( + sqlite3_recover *p, + int errCode, + const char *zFmt, ... +){ + char *z = 0; + va_list ap; + va_start(ap, zFmt); + if( zFmt ){ + z = sqlite3_vmprintf(zFmt, ap); + va_end(ap); + } + sqlite3_free(p->zErrMsg); + p->zErrMsg = z; + p->errCode = errCode; + return errCode; +} + + +/* +** This function is a no-op if p->errCode is initially other than SQLITE_OK. +** In this case it returns NULL. +** +** Otherwise, an attempt is made to allocate and return a bitmap object +** large enough to store a bit for all page numbers between 1 and nPg, +** inclusive. The bitmap is initially zeroed. +*/ +static RecoverBitmap *recoverBitmapAlloc(sqlite3_recover *p, i64 nPg){ + int nElem = (nPg+1+31) / 32; + int nByte = sizeof(RecoverBitmap) + nElem*sizeof(u32); + RecoverBitmap *pRet = (RecoverBitmap*)recoverMalloc(p, nByte); + + if( pRet ){ + pRet->nPg = nPg; + } + return pRet; +} + +/* +** Free a bitmap object allocated by recoverBitmapAlloc(). +*/ +static void recoverBitmapFree(RecoverBitmap *pMap){ + sqlite3_free(pMap); +} + +/* +** Set the bit associated with page iPg in bitvec pMap. +*/ +static void recoverBitmapSet(RecoverBitmap *pMap, i64 iPg){ + if( iPg<=pMap->nPg ){ + int iElem = (iPg / 32); + int iBit = (iPg % 32); + pMap->aElem[iElem] |= (((u32)1) << iBit); + } +} + +/* +** Query bitmap object pMap for the state of the bit associated with page +** iPg. Return 1 if it is set, or 0 otherwise. +*/ +static int recoverBitmapQuery(RecoverBitmap *pMap, i64 iPg){ + int ret = 1; + if( iPg<=pMap->nPg && iPg>0 ){ + int iElem = (iPg / 32); + int iBit = (iPg % 32); + ret = (pMap->aElem[iElem] & (((u32)1) << iBit)) ? 1 : 0; + } + return ret; +} + +/* +** Set the recover handle error to the error code and message returned by +** calling sqlite3_errcode() and sqlite3_errmsg(), respectively, on database +** handle db. +*/ +static int recoverDbError(sqlite3_recover *p, sqlite3 *db){ + return recoverError(p, sqlite3_errcode(db), "%s", sqlite3_errmsg(db)); +} + +/* +** This function is a no-op if recover handle p already contains an error +** (if p->errCode!=SQLITE_OK). +** +** Otherwise, it attempts to prepare the SQL statement in zSql against +** database handle db. If successful, the statement handle is returned. +** Or, if an error occurs, NULL is returned and an error left in the +** recover handle. +*/ +static sqlite3_stmt *recoverPrepare( + sqlite3_recover *p, + sqlite3 *db, + const char *zSql +){ + sqlite3_stmt *pStmt = 0; + if( p->errCode==SQLITE_OK ){ + if( sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0) ){ + recoverDbError(p, db); + } + } + return pStmt; +} + +/* +** This function is a no-op if recover handle p already contains an error +** (if p->errCode!=SQLITE_OK). +** +** Otherwise, argument zFmt is used as a printf() style format string, +** along with any trailing arguments, to create an SQL statement. This +** SQL statement is prepared against database handle db and, if successful, +** the statment handle returned. Or, if an error occurs - either during +** the printf() formatting or when preparing the resulting SQL - an +** error code and message are left in the recover handle. +*/ +static sqlite3_stmt *recoverPreparePrintf( + sqlite3_recover *p, + sqlite3 *db, + const char *zFmt, ... +){ + sqlite3_stmt *pStmt = 0; + if( p->errCode==SQLITE_OK ){ + va_list ap; + char *z; + va_start(ap, zFmt); + z = sqlite3_vmprintf(zFmt, ap); + va_end(ap); + if( z==0 ){ + p->errCode = SQLITE_NOMEM; + }else{ + pStmt = recoverPrepare(p, db, z); + sqlite3_free(z); + } + } + return pStmt; +} + +/* +** Reset SQLite statement handle pStmt. If the call to sqlite3_reset() +** indicates that an error occurred, and there is not already an error +** in the recover handle passed as the first argument, set the error +** code and error message appropriately. +** +** This function returns a copy of the statement handle pointer passed +** as the second argument. +*/ +static sqlite3_stmt *recoverReset(sqlite3_recover *p, sqlite3_stmt *pStmt){ + int rc = sqlite3_reset(pStmt); + if( rc!=SQLITE_OK && rc!=SQLITE_CONSTRAINT && p->errCode==SQLITE_OK ){ + recoverDbError(p, sqlite3_db_handle(pStmt)); + } + return pStmt; +} + +/* +** Finalize SQLite statement handle pStmt. If the call to sqlite3_reset() +** indicates that an error occurred, and there is not already an error +** in the recover handle passed as the first argument, set the error +** code and error message appropriately. +*/ +static void recoverFinalize(sqlite3_recover *p, sqlite3_stmt *pStmt){ + sqlite3 *db = sqlite3_db_handle(pStmt); + int rc = sqlite3_finalize(pStmt); + if( rc!=SQLITE_OK && p->errCode==SQLITE_OK ){ + recoverDbError(p, db); + } +} + +/* +** This function is a no-op if recover handle p already contains an error +** (if p->errCode!=SQLITE_OK). A copy of p->errCode is returned in this +** case. +** +** Otherwise, execute SQL script zSql. If successful, return SQLITE_OK. +** Or, if an error occurs, leave an error code and message in the recover +** handle and return a copy of the error code. +*/ +static int recoverExec(sqlite3_recover *p, sqlite3 *db, const char *zSql){ + if( p->errCode==SQLITE_OK ){ + int rc = sqlite3_exec(db, zSql, 0, 0, 0); + if( rc ){ + recoverDbError(p, db); + } + } + return p->errCode; +} + +/* +** Bind the value pVal to parameter iBind of statement pStmt. Leave an +** error in the recover handle passed as the first argument if an error +** (e.g. an OOM) occurs. +*/ +static void recoverBindValue( + sqlite3_recover *p, + sqlite3_stmt *pStmt, + int iBind, + sqlite3_value *pVal +){ + if( p->errCode==SQLITE_OK ){ + int rc = sqlite3_bind_value(pStmt, iBind, pVal); + if( rc ) recoverError(p, rc, 0); + } +} + +/* +** This function is a no-op if recover handle p already contains an error +** (if p->errCode!=SQLITE_OK). NULL is returned in this case. +** +** Otherwise, an attempt is made to interpret zFmt as a printf() style +** formatting string and the result of using the trailing arguments for +** parameter substitution with it written into a buffer obtained from +** sqlite3_malloc(). If successful, a pointer to the buffer is returned. +** It is the responsibility of the caller to eventually free the buffer +** using sqlite3_free(). +** +** Or, if an error occurs, an error code and message is left in the recover +** handle and NULL returned. +*/ +static char *recoverMPrintf(sqlite3_recover *p, const char *zFmt, ...){ + va_list ap; + char *z; + va_start(ap, zFmt); + z = sqlite3_vmprintf(zFmt, ap); + va_end(ap); + if( p->errCode==SQLITE_OK ){ + if( z==0 ) p->errCode = SQLITE_NOMEM; + }else{ + sqlite3_free(z); + z = 0; + } + return z; +} + +/* +** This function is a no-op if recover handle p already contains an error +** (if p->errCode!=SQLITE_OK). Zero is returned in this case. +** +** Otherwise, execute "PRAGMA page_count" against the input database. If +** successful, return the integer result. Or, if an error occurs, leave an +** error code and error message in the sqlite3_recover handle and return +** zero. +*/ +static i64 recoverPageCount(sqlite3_recover *p){ + i64 nPg = 0; + if( p->errCode==SQLITE_OK ){ + sqlite3_stmt *pStmt = 0; + pStmt = recoverPreparePrintf(p, p->dbIn, "PRAGMA %Q.page_count", p->zDb); + if( pStmt ){ + sqlite3_step(pStmt); + nPg = sqlite3_column_int64(pStmt, 0); + } + recoverFinalize(p, pStmt); + } + return nPg; +} + +/* +** Implementation of SQL scalar function "read_i32". The first argument to +** this function must be a blob. The second a non-negative integer. This +** function reads and returns a 32-bit big-endian integer from byte +** offset (4*<arg2>) of the blob. +** +** SELECT read_i32(<blob>, <idx>) +*/ +static void recoverReadI32( + sqlite3_context *context, + int argc, + sqlite3_value **argv +){ + const unsigned char *pBlob; + int nBlob; + int iInt; + + assert( argc==2 ); + nBlob = sqlite3_value_bytes(argv[0]); + pBlob = (const unsigned char*)sqlite3_value_blob(argv[0]); + iInt = sqlite3_value_int(argv[1]) & 0xFFFF; + + if( (iInt+1)*4<=nBlob ){ + const unsigned char *a = &pBlob[iInt*4]; + i64 iVal = ((i64)a[0]<<24) + + ((i64)a[1]<<16) + + ((i64)a[2]<< 8) + + ((i64)a[3]<< 0); + sqlite3_result_int64(context, iVal); + } +} + +/* +** Implementation of SQL scalar function "page_is_used". This function +** is used as part of the procedure for locating orphan rows for the +** lost-and-found table, and it depends on those routines having populated +** the sqlite3_recover.laf.pUsed variable. +** +** The only argument to this function is a page-number. It returns true +** if the page has already been used somehow during data recovery, or false +** otherwise. +** +** SELECT page_is_used(<pgno>); +*/ +static void recoverPageIsUsed( + sqlite3_context *pCtx, + int nArg, + sqlite3_value **apArg +){ + sqlite3_recover *p = (sqlite3_recover*)sqlite3_user_data(pCtx); + i64 pgno = sqlite3_value_int64(apArg[0]); + assert( nArg==1 ); + sqlite3_result_int(pCtx, recoverBitmapQuery(p->laf.pUsed, pgno)); +} + +/* +** The implementation of a user-defined SQL function invoked by the +** sqlite_dbdata and sqlite_dbptr virtual table modules to access pages +** of the database being recovered. +** +** This function always takes a single integer argument. If the argument +** is zero, then the value returned is the number of pages in the db being +** recovered. If the argument is greater than zero, it is a page number. +** The value returned in this case is an SQL blob containing the data for +** the identified page of the db being recovered. e.g. +** +** SELECT getpage(0); -- return number of pages in db +** SELECT getpage(4); -- return page 4 of db as a blob of data +*/ +static void recoverGetPage( + sqlite3_context *pCtx, + int nArg, + sqlite3_value **apArg +){ + sqlite3_recover *p = (sqlite3_recover*)sqlite3_user_data(pCtx); + i64 pgno = sqlite3_value_int64(apArg[0]); + sqlite3_stmt *pStmt = 0; + + assert( nArg==1 ); + if( pgno==0 ){ + i64 nPg = recoverPageCount(p); + sqlite3_result_int64(pCtx, nPg); + return; + }else{ + if( p->pGetPage==0 ){ + pStmt = p->pGetPage = recoverPreparePrintf( + p, p->dbIn, "SELECT data FROM sqlite_dbpage(%Q) WHERE pgno=?", p->zDb + ); + }else if( p->errCode==SQLITE_OK ){ + pStmt = p->pGetPage; + } + + if( pStmt ){ + sqlite3_bind_int64(pStmt, 1, pgno); + if( SQLITE_ROW==sqlite3_step(pStmt) ){ + const u8 *aPg; + int nPg; + assert( p->errCode==SQLITE_OK ); + aPg = sqlite3_column_blob(pStmt, 0); + nPg = sqlite3_column_bytes(pStmt, 0); + if( pgno==1 && nPg==p->pgsz && 0==memcmp(p->pPage1Cache, aPg, nPg) ){ + aPg = p->pPage1Disk; + } + sqlite3_result_blob(pCtx, aPg, nPg-p->nReserve, SQLITE_TRANSIENT); + } + recoverReset(p, pStmt); + } + } + + if( p->errCode ){ + if( p->zErrMsg ) sqlite3_result_error(pCtx, p->zErrMsg, -1); + sqlite3_result_error_code(pCtx, p->errCode); + } +} + +/* +** Find a string that is not found anywhere in z[]. Return a pointer +** to that string. +** +** Try to use zA and zB first. If both of those are already found in z[] +** then make up some string and store it in the buffer zBuf. +*/ +static const char *recoverUnusedString( + const char *z, /* Result must not appear anywhere in z */ + const char *zA, const char *zB, /* Try these first */ + char *zBuf /* Space to store a generated string */ +){ + unsigned i = 0; + if( strstr(z, zA)==0 ) return zA; + if( strstr(z, zB)==0 ) return zB; + do{ + sqlite3_snprintf(20,zBuf,"(%s%u)", zA, i++); + }while( strstr(z,zBuf)!=0 ); + return zBuf; +} + +/* +** Implementation of scalar SQL function "escape_crnl". The argument passed to +** this function is the output of built-in function quote(). If the first +** character of the input is "'", indicating that the value passed to quote() +** was a text value, then this function searches the input for "\n" and "\r" +** characters and adds a wrapper similar to the following: +** +** replace(replace(<input>, '\n', char(10), '\r', char(13)); +** +** Or, if the first character of the input is not "'", then a copy of the input +** is returned. +*/ +static void recoverEscapeCrnl( + sqlite3_context *context, + int argc, + sqlite3_value **argv +){ + const char *zText = (const char*)sqlite3_value_text(argv[0]); + (void)argc; + if( zText && zText[0]=='\'' ){ + int nText = sqlite3_value_bytes(argv[0]); + int i; + char zBuf1[20]; + char zBuf2[20]; + const char *zNL = 0; + const char *zCR = 0; + int nCR = 0; + int nNL = 0; + + for(i=0; zText[i]; i++){ + if( zNL==0 && zText[i]=='\n' ){ + zNL = recoverUnusedString(zText, "\\n", "\\012", zBuf1); + nNL = (int)strlen(zNL); + } + if( zCR==0 && zText[i]=='\r' ){ + zCR = recoverUnusedString(zText, "\\r", "\\015", zBuf2); + nCR = (int)strlen(zCR); + } + } + + if( zNL || zCR ){ + int iOut = 0; + i64 nMax = (nNL > nCR) ? nNL : nCR; + i64 nAlloc = nMax * nText + (nMax+64)*2; + char *zOut = (char*)sqlite3_malloc64(nAlloc); + if( zOut==0 ){ + sqlite3_result_error_nomem(context); + return; + } + + if( zNL && zCR ){ + memcpy(&zOut[iOut], "replace(replace(", 16); + iOut += 16; + }else{ + memcpy(&zOut[iOut], "replace(", 8); + iOut += 8; + } + for(i=0; zText[i]; i++){ + if( zText[i]=='\n' ){ + memcpy(&zOut[iOut], zNL, nNL); + iOut += nNL; + }else if( zText[i]=='\r' ){ + memcpy(&zOut[iOut], zCR, nCR); + iOut += nCR; + }else{ + zOut[iOut] = zText[i]; + iOut++; + } + } + + if( zNL ){ + memcpy(&zOut[iOut], ",'", 2); iOut += 2; + memcpy(&zOut[iOut], zNL, nNL); iOut += nNL; + memcpy(&zOut[iOut], "', char(10))", 12); iOut += 12; + } + if( zCR ){ + memcpy(&zOut[iOut], ",'", 2); iOut += 2; + memcpy(&zOut[iOut], zCR, nCR); iOut += nCR; + memcpy(&zOut[iOut], "', char(13))", 12); iOut += 12; + } + + sqlite3_result_text(context, zOut, iOut, SQLITE_TRANSIENT); + sqlite3_free(zOut); + return; + } + } + + sqlite3_result_value(context, argv[0]); +} + +/* +** This function is a no-op if recover handle p already contains an error +** (if p->errCode!=SQLITE_OK). A copy of the error code is returned in +** this case. +** +** Otherwise, attempt to populate temporary table "recovery.schema" with the +** parts of the database schema that can be extracted from the input database. +** +** If no error occurs, SQLITE_OK is returned. Otherwise, an error code +** and error message are left in the recover handle and a copy of the +** error code returned. It is not considered an error if part of all of +** the database schema cannot be recovered due to corruption. +*/ +static int recoverCacheSchema(sqlite3_recover *p){ + return recoverExec(p, p->dbOut, + "WITH RECURSIVE pages(p) AS (" + " SELECT 1" + " UNION" + " SELECT child FROM sqlite_dbptr('getpage()'), pages WHERE pgno=p" + ")" + "INSERT INTO recovery.schema SELECT" + " max(CASE WHEN field=0 THEN value ELSE NULL END)," + " max(CASE WHEN field=1 THEN value ELSE NULL END)," + " max(CASE WHEN field=2 THEN value ELSE NULL END)," + " max(CASE WHEN field=3 THEN value ELSE NULL END)," + " max(CASE WHEN field=4 THEN value ELSE NULL END)" + "FROM sqlite_dbdata('getpage()') WHERE pgno IN (" + " SELECT p FROM pages" + ") GROUP BY pgno, cell" + ); +} + +/* +** If this recover handle is not in SQL callback mode (i.e. was not created +** using sqlite3_recover_init_sql()) of if an error has already occurred, +** this function is a no-op. Otherwise, issue a callback with SQL statement +** zSql as the parameter. +** +** If the callback returns non-zero, set the recover handle error code to +** the value returned (so that the caller will abandon processing). +*/ +static void recoverSqlCallback(sqlite3_recover *p, const char *zSql){ + if( p->errCode==SQLITE_OK && p->xSql ){ + int res = p->xSql(p->pSqlCtx, zSql); + if( res ){ + recoverError(p, SQLITE_ERROR, "callback returned an error - %d", res); + } + } +} + +/* +** Transfer the following settings from the input database to the output +** database: +** +** + page-size, +** + auto-vacuum settings, +** + database encoding, +** + user-version (PRAGMA user_version), and +** + application-id (PRAGMA application_id), and +*/ +static void recoverTransferSettings(sqlite3_recover *p){ + const char *aPragma[] = { + "encoding", + "page_size", + "auto_vacuum", + "user_version", + "application_id" + }; + int ii; + + /* Truncate the output database to 0 pages in size. This is done by + ** opening a new, empty, temp db, then using the backup API to clobber + ** any existing output db with a copy of it. */ + if( p->errCode==SQLITE_OK ){ + sqlite3 *db2 = 0; + int rc = sqlite3_open("", &db2); + if( rc!=SQLITE_OK ){ + recoverDbError(p, db2); + return; + } + + for(ii=0; ii<(int)(sizeof(aPragma)/sizeof(aPragma[0])); ii++){ + const char *zPrag = aPragma[ii]; + sqlite3_stmt *p1 = 0; + p1 = recoverPreparePrintf(p, p->dbIn, "PRAGMA %Q.%s", p->zDb, zPrag); + if( p->errCode==SQLITE_OK && sqlite3_step(p1)==SQLITE_ROW ){ + const char *zArg = (const char*)sqlite3_column_text(p1, 0); + char *z2 = recoverMPrintf(p, "PRAGMA %s = %Q", zPrag, zArg); + recoverSqlCallback(p, z2); + recoverExec(p, db2, z2); + sqlite3_free(z2); + if( zArg==0 ){ + recoverError(p, SQLITE_NOMEM, 0); + } + } + recoverFinalize(p, p1); + } + recoverExec(p, db2, "CREATE TABLE t1(a); DROP TABLE t1;"); + + if( p->errCode==SQLITE_OK ){ + sqlite3 *db = p->dbOut; + sqlite3_backup *pBackup = sqlite3_backup_init(db, "main", db2, "main"); + if( pBackup ){ + sqlite3_backup_step(pBackup, -1); + p->errCode = sqlite3_backup_finish(pBackup); + }else{ + recoverDbError(p, db); + } + } + + sqlite3_close(db2); + } +} + +/* +** This function is a no-op if recover handle p already contains an error +** (if p->errCode!=SQLITE_OK). A copy of the error code is returned in +** this case. +** +** Otherwise, an attempt is made to open the output database, attach +** and create the schema of the temporary database used to store +** intermediate data, and to register all required user functions and +** virtual table modules with the output handle. +** +** If no error occurs, SQLITE_OK is returned. Otherwise, an error code +** and error message are left in the recover handle and a copy of the +** error code returned. +*/ +static int recoverOpenOutput(sqlite3_recover *p){ + struct Func { + const char *zName; + int nArg; + void (*xFunc)(sqlite3_context*,int,sqlite3_value **); + } aFunc[] = { + { "getpage", 1, recoverGetPage }, + { "page_is_used", 1, recoverPageIsUsed }, + { "read_i32", 2, recoverReadI32 }, + { "escape_crnl", 1, recoverEscapeCrnl }, + }; + + const int flags = SQLITE_OPEN_URI|SQLITE_OPEN_CREATE|SQLITE_OPEN_READWRITE; + sqlite3 *db = 0; /* New database handle */ + int ii; /* For iterating through aFunc[] */ + + assert( p->dbOut==0 ); + + if( sqlite3_open_v2(p->zUri, &db, flags, 0) ){ + recoverDbError(p, db); + } + + /* Register the sqlite_dbdata and sqlite_dbptr virtual table modules. + ** These two are registered with the output database handle - this + ** module depends on the input handle supporting the sqlite_dbpage + ** virtual table only. */ + if( p->errCode==SQLITE_OK ){ + p->errCode = sqlite3_dbdata_init(db, 0, 0); + } + + /* Register the custom user-functions with the output handle. */ + for(ii=0; + p->errCode==SQLITE_OK && ii<(int)(sizeof(aFunc)/sizeof(aFunc[0])); + ii++){ + p->errCode = sqlite3_create_function(db, aFunc[ii].zName, + aFunc[ii].nArg, SQLITE_UTF8, (void*)p, aFunc[ii].xFunc, 0, 0 + ); + } + + p->dbOut = db; + return p->errCode; +} + +/* +** Attach the auxiliary database 'recovery' to the output database handle. +** This temporary database is used during the recovery process and then +** discarded. +*/ +static void recoverOpenRecovery(sqlite3_recover *p){ + char *zSql = recoverMPrintf(p, "ATTACH %Q AS recovery;", p->zStateDb); + recoverExec(p, p->dbOut, zSql); + recoverExec(p, p->dbOut, + "PRAGMA writable_schema = 1;" + "CREATE TABLE recovery.map(pgno INTEGER PRIMARY KEY, parent INT);" + "CREATE TABLE recovery.schema(type, name, tbl_name, rootpage, sql);" + ); + sqlite3_free(zSql); +} + + +/* +** This function is a no-op if recover handle p already contains an error +** (if p->errCode!=SQLITE_OK). +** +** Otherwise, argument zName must be the name of a table that has just been +** created in the output database. This function queries the output db +** for the schema of said table, and creates a RecoverTable object to +** store the schema in memory. The new RecoverTable object is linked into +** the list at sqlite3_recover.pTblList. +** +** Parameter iRoot must be the root page of table zName in the INPUT +** database. +*/ +static void recoverAddTable( + sqlite3_recover *p, + const char *zName, /* Name of table created in output db */ + i64 iRoot /* Root page of same table in INPUT db */ +){ + sqlite3_stmt *pStmt = recoverPreparePrintf(p, p->dbOut, + "PRAGMA table_xinfo(%Q)", zName + ); + + if( pStmt ){ + int iPk = -1; + int iBind = 1; + RecoverTable *pNew = 0; + int nCol = 0; + int nName = recoverStrlen(zName); + int nByte = 0; + while( sqlite3_step(pStmt)==SQLITE_ROW ){ + nCol++; + nByte += (sqlite3_column_bytes(pStmt, 1)+1); + } + nByte += sizeof(RecoverTable) + nCol*sizeof(RecoverColumn) + nName+1; + recoverReset(p, pStmt); + + pNew = recoverMalloc(p, nByte); + if( pNew ){ + int i = 0; + int iField = 0; + char *csr = 0; + pNew->aCol = (RecoverColumn*)&pNew[1]; + pNew->zTab = csr = (char*)&pNew->aCol[nCol]; + pNew->nCol = nCol; + pNew->iRoot = iRoot; + memcpy(csr, zName, nName); + csr += nName+1; + + for(i=0; sqlite3_step(pStmt)==SQLITE_ROW; i++){ + int iPKF = sqlite3_column_int(pStmt, 5); + int n = sqlite3_column_bytes(pStmt, 1); + const char *z = (const char*)sqlite3_column_text(pStmt, 1); + const char *zType = (const char*)sqlite3_column_text(pStmt, 2); + int eHidden = sqlite3_column_int(pStmt, 6); + + if( iPk==-1 && iPKF==1 && !sqlite3_stricmp("integer", zType) ) iPk = i; + if( iPKF>1 ) iPk = -2; + pNew->aCol[i].zCol = csr; + pNew->aCol[i].eHidden = eHidden; + if( eHidden==RECOVER_EHIDDEN_VIRTUAL ){ + pNew->aCol[i].iField = -1; + }else{ + pNew->aCol[i].iField = iField++; + } + if( eHidden!=RECOVER_EHIDDEN_VIRTUAL + && eHidden!=RECOVER_EHIDDEN_STORED + ){ + pNew->aCol[i].iBind = iBind++; + } + memcpy(csr, z, n); + csr += (n+1); + } + + pNew->pNext = p->pTblList; + p->pTblList = pNew; + pNew->bIntkey = 1; + } + + recoverFinalize(p, pStmt); + + pStmt = recoverPreparePrintf(p, p->dbOut, "PRAGMA index_xinfo(%Q)", zName); + while( pStmt && sqlite3_step(pStmt)==SQLITE_ROW ){ + int iField = sqlite3_column_int(pStmt, 0); + int iCol = sqlite3_column_int(pStmt, 1); + + assert( iField<pNew->nCol && iCol<pNew->nCol ); + pNew->aCol[iCol].iField = iField; + + pNew->bIntkey = 0; + iPk = -2; + } + recoverFinalize(p, pStmt); + + if( p->errCode==SQLITE_OK ){ + if( iPk>=0 ){ + pNew->aCol[iPk].bIPK = 1; + }else if( pNew->bIntkey ){ + pNew->iRowidBind = iBind++; + } + } + } +} + +/* +** This function is called after recoverCacheSchema() has cached those parts +** of the input database schema that could be recovered in temporary table +** "recovery.schema". This function creates in the output database copies +** of all parts of that schema that must be created before the tables can +** be populated. Specifically, this means: +** +** * all tables that are not VIRTUAL, and +** * UNIQUE indexes. +** +** If the recovery handle uses SQL callbacks, then callbacks containing +** the associated "CREATE TABLE" and "CREATE INDEX" statements are made. +** +** Additionally, records are added to the sqlite_schema table of the +** output database for any VIRTUAL tables. The CREATE VIRTUAL TABLE +** records are written directly to sqlite_schema, not actually executed. +** If the handle is in SQL callback mode, then callbacks are invoked +** with equivalent SQL statements. +*/ +static int recoverWriteSchema1(sqlite3_recover *p){ + sqlite3_stmt *pSelect = 0; + sqlite3_stmt *pTblname = 0; + + pSelect = recoverPrepare(p, p->dbOut, + "WITH dbschema(rootpage, name, sql, tbl, isVirtual, isIndex) AS (" + " SELECT rootpage, name, sql, " + " type='table', " + " sql LIKE 'create virtual%'," + " (type='index' AND (sql LIKE '%unique%' OR ?1))" + " FROM recovery.schema" + ")" + "SELECT rootpage, tbl, isVirtual, name, sql" + " FROM dbschema " + " WHERE tbl OR isIndex" + " ORDER BY tbl DESC, name=='sqlite_sequence' DESC" + ); + + pTblname = recoverPrepare(p, p->dbOut, + "SELECT name FROM sqlite_schema " + "WHERE type='table' ORDER BY rowid DESC LIMIT 1" + ); + + if( pSelect ){ + sqlite3_bind_int(pSelect, 1, p->bSlowIndexes); + while( sqlite3_step(pSelect)==SQLITE_ROW ){ + i64 iRoot = sqlite3_column_int64(pSelect, 0); + int bTable = sqlite3_column_int(pSelect, 1); + int bVirtual = sqlite3_column_int(pSelect, 2); + const char *zName = (const char*)sqlite3_column_text(pSelect, 3); + const char *zSql = (const char*)sqlite3_column_text(pSelect, 4); + char *zFree = 0; + int rc = SQLITE_OK; + + if( bVirtual ){ + zSql = (const char*)(zFree = recoverMPrintf(p, + "INSERT INTO sqlite_schema VALUES('table', %Q, %Q, 0, %Q)", + zName, zName, zSql + )); + } + rc = sqlite3_exec(p->dbOut, zSql, 0, 0, 0); + if( rc==SQLITE_OK ){ + recoverSqlCallback(p, zSql); + if( bTable && !bVirtual ){ + if( SQLITE_ROW==sqlite3_step(pTblname) ){ + const char *zTbl = (const char*)sqlite3_column_text(pTblname, 0); + recoverAddTable(p, zTbl, iRoot); + } + recoverReset(p, pTblname); + } + }else if( rc!=SQLITE_ERROR ){ + recoverDbError(p, p->dbOut); + } + sqlite3_free(zFree); + } + } + recoverFinalize(p, pSelect); + recoverFinalize(p, pTblname); + + return p->errCode; +} + +/* +** This function is called after the output database has been populated. It +** adds all recovered schema elements that were not created in the output +** database by recoverWriteSchema1() - everything except for tables and +** UNIQUE indexes. Specifically: +** +** * views, +** * triggers, +** * non-UNIQUE indexes. +** +** If the recover handle is in SQL callback mode, then equivalent callbacks +** are issued to create the schema elements. +*/ +static int recoverWriteSchema2(sqlite3_recover *p){ + sqlite3_stmt *pSelect = 0; + + pSelect = recoverPrepare(p, p->dbOut, + p->bSlowIndexes ? + "SELECT rootpage, sql FROM recovery.schema " + " WHERE type!='table' AND type!='index'" + : + "SELECT rootpage, sql FROM recovery.schema " + " WHERE type!='table' AND (type!='index' OR sql NOT LIKE '%unique%')" + ); + + if( pSelect ){ + while( sqlite3_step(pSelect)==SQLITE_ROW ){ + const char *zSql = (const char*)sqlite3_column_text(pSelect, 1); + int rc = sqlite3_exec(p->dbOut, zSql, 0, 0, 0); + if( rc==SQLITE_OK ){ + recoverSqlCallback(p, zSql); + }else if( rc!=SQLITE_ERROR ){ + recoverDbError(p, p->dbOut); + } + } + } + recoverFinalize(p, pSelect); + + return p->errCode; +} + +/* +** This function is a no-op if recover handle p already contains an error +** (if p->errCode!=SQLITE_OK). In this case it returns NULL. +** +** Otherwise, if the recover handle is configured to create an output +** database (was created by sqlite3_recover_init()), then this function +** prepares and returns an SQL statement to INSERT a new record into table +** pTab, assuming the first nField fields of a record extracted from disk +** are valid. +** +** For example, if table pTab is: +** +** CREATE TABLE name(a, b GENERATED ALWAYS AS (a+1) STORED, c, d, e); +** +** And nField is 4, then the SQL statement prepared and returned is: +** +** INSERT INTO (a, c, d) VALUES (?1, ?2, ?3); +** +** In this case even though 4 values were extracted from the input db, +** only 3 are written to the output, as the generated STORED column +** cannot be written. +** +** If the recover handle is in SQL callback mode, then the SQL statement +** prepared is such that evaluating it returns a single row containing +** a single text value - itself an SQL statement similar to the above, +** except with SQL literals in place of the variables. For example: +** +** SELECT 'INSERT INTO (a, c, d) VALUES (' +** || quote(?1) || ', ' +** || quote(?2) || ', ' +** || quote(?3) || ')'; +** +** In either case, it is the responsibility of the caller to eventually +** free the statement handle using sqlite3_finalize(). +*/ +static sqlite3_stmt *recoverInsertStmt( + sqlite3_recover *p, + RecoverTable *pTab, + int nField +){ + sqlite3_stmt *pRet = 0; + const char *zSep = ""; + const char *zSqlSep = ""; + char *zSql = 0; + char *zFinal = 0; + char *zBind = 0; + int ii; + int bSql = p->xSql ? 1 : 0; + + if( nField<=0 ) return 0; + + assert( nField<=pTab->nCol ); + + zSql = recoverMPrintf(p, "INSERT OR IGNORE INTO %Q(", pTab->zTab); + + if( pTab->iRowidBind ){ + assert( pTab->bIntkey ); + zSql = recoverMPrintf(p, "%z_rowid_", zSql); + if( bSql ){ + zBind = recoverMPrintf(p, "%zquote(?%d)", zBind, pTab->iRowidBind); + }else{ + zBind = recoverMPrintf(p, "%z?%d", zBind, pTab->iRowidBind); + } + zSqlSep = "||', '||"; + zSep = ", "; + } + + for(ii=0; ii<nField; ii++){ + int eHidden = pTab->aCol[ii].eHidden; + if( eHidden!=RECOVER_EHIDDEN_VIRTUAL + && eHidden!=RECOVER_EHIDDEN_STORED + ){ + assert( pTab->aCol[ii].iField>=0 && pTab->aCol[ii].iBind>=1 ); + zSql = recoverMPrintf(p, "%z%s%Q", zSql, zSep, pTab->aCol[ii].zCol); + + if( bSql ){ + zBind = recoverMPrintf(p, + "%z%sescape_crnl(quote(?%d))", zBind, zSqlSep, pTab->aCol[ii].iBind + ); + zSqlSep = "||', '||"; + }else{ + zBind = recoverMPrintf(p, "%z%s?%d", zBind, zSep, pTab->aCol[ii].iBind); + } + zSep = ", "; + } + } + + if( bSql ){ + zFinal = recoverMPrintf(p, "SELECT %Q || ') VALUES (' || %s || ')'", + zSql, zBind + ); + }else{ + zFinal = recoverMPrintf(p, "%s) VALUES (%s)", zSql, zBind); + } + + pRet = recoverPrepare(p, p->dbOut, zFinal); + sqlite3_free(zSql); + sqlite3_free(zBind); + sqlite3_free(zFinal); + + return pRet; +} + + +/* +** Search the list of RecoverTable objects at p->pTblList for one that +** has root page iRoot in the input database. If such an object is found, +** return a pointer to it. Otherwise, return NULL. +*/ +static RecoverTable *recoverFindTable(sqlite3_recover *p, u32 iRoot){ + RecoverTable *pRet = 0; + for(pRet=p->pTblList; pRet && pRet->iRoot!=iRoot; pRet=pRet->pNext); + return pRet; +} + +/* +** This function attempts to create a lost and found table within the +** output db. If successful, it returns a pointer to a buffer containing +** the name of the new table. It is the responsibility of the caller to +** eventually free this buffer using sqlite3_free(). +** +** If an error occurs, NULL is returned and an error code and error +** message left in the recover handle. +*/ +static char *recoverLostAndFoundCreate( + sqlite3_recover *p, /* Recover object */ + int nField /* Number of column fields in new table */ +){ + char *zTbl = 0; + sqlite3_stmt *pProbe = 0; + int ii = 0; + + pProbe = recoverPrepare(p, p->dbOut, + "SELECT 1 FROM sqlite_schema WHERE name=?" + ); + for(ii=-1; zTbl==0 && p->errCode==SQLITE_OK && ii<1000; ii++){ + int bFail = 0; + if( ii<0 ){ + zTbl = recoverMPrintf(p, "%s", p->zLostAndFound); + }else{ + zTbl = recoverMPrintf(p, "%s_%d", p->zLostAndFound, ii); + } + + if( p->errCode==SQLITE_OK ){ + sqlite3_bind_text(pProbe, 1, zTbl, -1, SQLITE_STATIC); + if( SQLITE_ROW==sqlite3_step(pProbe) ){ + bFail = 1; + } + recoverReset(p, pProbe); + } + + if( bFail ){ + sqlite3_clear_bindings(pProbe); + sqlite3_free(zTbl); + zTbl = 0; + } + } + recoverFinalize(p, pProbe); + + if( zTbl ){ + const char *zSep = 0; + char *zField = 0; + char *zSql = 0; + + zSep = "rootpgno INTEGER, pgno INTEGER, nfield INTEGER, id INTEGER, "; + for(ii=0; p->errCode==SQLITE_OK && ii<nField; ii++){ + zField = recoverMPrintf(p, "%z%sc%d", zField, zSep, ii); + zSep = ", "; + } + + zSql = recoverMPrintf(p, "CREATE TABLE %s(%s)", zTbl, zField); + sqlite3_free(zField); + + recoverExec(p, p->dbOut, zSql); + recoverSqlCallback(p, zSql); + sqlite3_free(zSql); + }else if( p->errCode==SQLITE_OK ){ + recoverError( + p, SQLITE_ERROR, "failed to create %s output table", p->zLostAndFound + ); + } + + return zTbl; +} + +/* +** Synthesize and prepare an INSERT statement to write to the lost_and_found +** table in the output database. The name of the table is zTab, and it has +** nField c* fields. +*/ +static sqlite3_stmt *recoverLostAndFoundInsert( + sqlite3_recover *p, + const char *zTab, + int nField +){ + int nTotal = nField + 4; + int ii; + char *zBind = 0; + sqlite3_stmt *pRet = 0; + + if( p->xSql==0 ){ + for(ii=0; ii<nTotal; ii++){ + zBind = recoverMPrintf(p, "%z%s?", zBind, zBind?", ":"", ii); + } + pRet = recoverPreparePrintf( + p, p->dbOut, "INSERT INTO %s VALUES(%s)", zTab, zBind + ); + }else{ + const char *zSep = ""; + for(ii=0; ii<nTotal; ii++){ + zBind = recoverMPrintf(p, "%z%squote(?)", zBind, zSep); + zSep = "|| ', ' ||"; + } + pRet = recoverPreparePrintf( + p, p->dbOut, "SELECT 'INSERT INTO %s VALUES(' || %s || ')'", zTab, zBind + ); + } + + sqlite3_free(zBind); + return pRet; +} + +/* +** Input database page iPg contains data that will be written to the +** lost-and-found table of the output database. This function attempts +** to identify the root page of the tree that page iPg belonged to. +** If successful, it sets output variable (*piRoot) to the page number +** of the root page and returns SQLITE_OK. Otherwise, if an error occurs, +** an SQLite error code is returned and the final value of *piRoot +** undefined. +*/ +static int recoverLostAndFoundFindRoot( + sqlite3_recover *p, + i64 iPg, + i64 *piRoot +){ + RecoverStateLAF *pLaf = &p->laf; + + if( pLaf->pFindRoot==0 ){ + pLaf->pFindRoot = recoverPrepare(p, p->dbOut, + "WITH RECURSIVE p(pgno) AS (" + " SELECT ?" + " UNION" + " SELECT parent FROM recovery.map AS m, p WHERE m.pgno=p.pgno" + ") " + "SELECT p.pgno FROM p, recovery.map m WHERE m.pgno=p.pgno " + " AND m.parent IS NULL" + ); + } + if( p->errCode==SQLITE_OK ){ + sqlite3_bind_int64(pLaf->pFindRoot, 1, iPg); + if( sqlite3_step(pLaf->pFindRoot)==SQLITE_ROW ){ + *piRoot = sqlite3_column_int64(pLaf->pFindRoot, 0); + }else{ + *piRoot = iPg; + } + recoverReset(p, pLaf->pFindRoot); + } + return p->errCode; +} + +/* +** Recover data from page iPage of the input database and write it to +** the lost-and-found table in the output database. +*/ +static void recoverLostAndFoundOnePage(sqlite3_recover *p, i64 iPage){ + RecoverStateLAF *pLaf = &p->laf; + sqlite3_value **apVal = pLaf->apVal; + sqlite3_stmt *pPageData = pLaf->pPageData; + sqlite3_stmt *pInsert = pLaf->pInsert; + + int nVal = -1; + int iPrevCell = 0; + i64 iRoot = 0; + int bHaveRowid = 0; + i64 iRowid = 0; + int ii = 0; + + if( recoverLostAndFoundFindRoot(p, iPage, &iRoot) ) return; + sqlite3_bind_int64(pPageData, 1, iPage); + while( p->errCode==SQLITE_OK && SQLITE_ROW==sqlite3_step(pPageData) ){ + int iCell = sqlite3_column_int64(pPageData, 0); + int iField = sqlite3_column_int64(pPageData, 1); + + if( iPrevCell!=iCell && nVal>=0 ){ + /* Insert the new row */ + sqlite3_bind_int64(pInsert, 1, iRoot); /* rootpgno */ + sqlite3_bind_int64(pInsert, 2, iPage); /* pgno */ + sqlite3_bind_int(pInsert, 3, nVal); /* nfield */ + if( bHaveRowid ){ + sqlite3_bind_int64(pInsert, 4, iRowid); /* id */ + } + for(ii=0; ii<nVal; ii++){ + recoverBindValue(p, pInsert, 5+ii, apVal[ii]); + } + if( sqlite3_step(pInsert)==SQLITE_ROW ){ + recoverSqlCallback(p, (const char*)sqlite3_column_text(pInsert, 0)); + } + recoverReset(p, pInsert); + + /* Discard the accumulated row data */ + for(ii=0; ii<nVal; ii++){ + sqlite3_value_free(apVal[ii]); + apVal[ii] = 0; + } + sqlite3_clear_bindings(pInsert); + bHaveRowid = 0; + nVal = -1; + } + + if( iCell<0 ) break; + + if( iField<0 ){ + assert( nVal==-1 ); + iRowid = sqlite3_column_int64(pPageData, 2); + bHaveRowid = 1; + nVal = 0; + }else if( iField<pLaf->nMaxField ){ + sqlite3_value *pVal = sqlite3_column_value(pPageData, 2); + apVal[iField] = sqlite3_value_dup(pVal); + assert( iField==nVal || (nVal==-1 && iField==0) ); + nVal = iField+1; + if( apVal[iField]==0 ){ + recoverError(p, SQLITE_NOMEM, 0); + } + } + + iPrevCell = iCell; + } + recoverReset(p, pPageData); + + for(ii=0; ii<nVal; ii++){ + sqlite3_value_free(apVal[ii]); + apVal[ii] = 0; + } +} + +/* +** Perform one step (sqlite3_recover_step()) of work for the connection +** passed as the only argument, which is guaranteed to be in +** RECOVER_STATE_LOSTANDFOUND3 state - during which the lost-and-found +** table of the output database is populated with recovered data that can +** not be assigned to any recovered schema object. +*/ +static int recoverLostAndFound3Step(sqlite3_recover *p){ + RecoverStateLAF *pLaf = &p->laf; + if( p->errCode==SQLITE_OK ){ + if( pLaf->pInsert==0 ){ + return SQLITE_DONE; + }else{ + if( p->errCode==SQLITE_OK ){ + int res = sqlite3_step(pLaf->pAllPage); + if( res==SQLITE_ROW ){ + i64 iPage = sqlite3_column_int64(pLaf->pAllPage, 0); + if( recoverBitmapQuery(pLaf->pUsed, iPage)==0 ){ + recoverLostAndFoundOnePage(p, iPage); + } + }else{ + recoverReset(p, pLaf->pAllPage); + return SQLITE_DONE; + } + } + } + } + return SQLITE_OK; +} + +/* +** Initialize resources required in RECOVER_STATE_LOSTANDFOUND3 +** state - during which the lost-and-found table of the output database +** is populated with recovered data that can not be assigned to any +** recovered schema object. +*/ +static void recoverLostAndFound3Init(sqlite3_recover *p){ + RecoverStateLAF *pLaf = &p->laf; + + if( pLaf->nMaxField>0 ){ + char *zTab = 0; /* Name of lost_and_found table */ + + zTab = recoverLostAndFoundCreate(p, pLaf->nMaxField); + pLaf->pInsert = recoverLostAndFoundInsert(p, zTab, pLaf->nMaxField); + sqlite3_free(zTab); + + pLaf->pAllPage = recoverPreparePrintf(p, p->dbOut, + "WITH RECURSIVE seq(ii) AS (" + " SELECT 1 UNION ALL SELECT ii+1 FROM seq WHERE ii<%lld" + ")" + "SELECT ii FROM seq" , p->laf.nPg + ); + pLaf->pPageData = recoverPrepare(p, p->dbOut, + "SELECT cell, field, value " + "FROM sqlite_dbdata('getpage()') d WHERE d.pgno=? " + "UNION ALL " + "SELECT -1, -1, -1" + ); + + pLaf->apVal = (sqlite3_value**)recoverMalloc(p, + pLaf->nMaxField*sizeof(sqlite3_value*) + ); + } +} + +/* +** Initialize resources required in RECOVER_STATE_WRITING state - during which +** tables recovered from the schema of the input database are populated with +** recovered data. +*/ +static int recoverWriteDataInit(sqlite3_recover *p){ + RecoverStateW1 *p1 = &p->w1; + RecoverTable *pTbl = 0; + int nByte = 0; + + /* Figure out the maximum number of columns for any table in the schema */ + assert( p1->nMax==0 ); + for(pTbl=p->pTblList; pTbl; pTbl=pTbl->pNext){ + if( pTbl->nCol>p1->nMax ) p1->nMax = pTbl->nCol; + } + + /* Allocate an array of (sqlite3_value*) in which to accumulate the values + ** that will be written to the output database in a single row. */ + nByte = sizeof(sqlite3_value*) * (p1->nMax+1); + p1->apVal = (sqlite3_value**)recoverMalloc(p, nByte); + if( p1->apVal==0 ) return p->errCode; + + /* Prepare the SELECT to loop through schema tables (pTbls) and the SELECT + ** to loop through cells that appear to belong to a single table (pSel). */ + p1->pTbls = recoverPrepare(p, p->dbOut, + "SELECT rootpage FROM recovery.schema " + " WHERE type='table' AND (sql NOT LIKE 'create virtual%')" + " ORDER BY (tbl_name='sqlite_sequence') ASC" + ); + p1->pSel = recoverPrepare(p, p->dbOut, + "WITH RECURSIVE pages(page) AS (" + " SELECT ?1" + " UNION" + " SELECT child FROM sqlite_dbptr('getpage()'), pages " + " WHERE pgno=page" + ") " + "SELECT page, cell, field, value " + "FROM sqlite_dbdata('getpage()') d, pages p WHERE p.page=d.pgno " + "UNION ALL " + "SELECT 0, 0, 0, 0" + ); + + return p->errCode; +} + +/* +** Clean up resources allocated by recoverWriteDataInit() (stuff in +** sqlite3_recover.w1). +*/ +static void recoverWriteDataCleanup(sqlite3_recover *p){ + RecoverStateW1 *p1 = &p->w1; + int ii; + for(ii=0; ii<p1->nVal; ii++){ + sqlite3_value_free(p1->apVal[ii]); + } + sqlite3_free(p1->apVal); + recoverFinalize(p, p1->pInsert); + recoverFinalize(p, p1->pTbls); + recoverFinalize(p, p1->pSel); + memset(p1, 0, sizeof(*p1)); +} + +/* +** Perform one step (sqlite3_recover_step()) of work for the connection +** passed as the only argument, which is guaranteed to be in +** RECOVER_STATE_WRITING state - during which tables recovered from the +** schema of the input database are populated with recovered data. +*/ +static int recoverWriteDataStep(sqlite3_recover *p){ + RecoverStateW1 *p1 = &p->w1; + sqlite3_stmt *pSel = p1->pSel; + sqlite3_value **apVal = p1->apVal; + + if( p->errCode==SQLITE_OK && p1->pTab==0 ){ + if( sqlite3_step(p1->pTbls)==SQLITE_ROW ){ + i64 iRoot = sqlite3_column_int64(p1->pTbls, 0); + p1->pTab = recoverFindTable(p, iRoot); + + recoverFinalize(p, p1->pInsert); + p1->pInsert = 0; + + /* If this table is unknown, return early. The caller will invoke this + ** function again and it will move on to the next table. */ + if( p1->pTab==0 ) return p->errCode; + + /* If this is the sqlite_sequence table, delete any rows added by + ** earlier INSERT statements on tables with AUTOINCREMENT primary + ** keys before recovering its contents. The p1->pTbls SELECT statement + ** is rigged to deliver "sqlite_sequence" last of all, so we don't + ** worry about it being modified after it is recovered. */ + if( sqlite3_stricmp("sqlite_sequence", p1->pTab->zTab)==0 ){ + recoverExec(p, p->dbOut, "DELETE FROM sqlite_sequence"); + recoverSqlCallback(p, "DELETE FROM sqlite_sequence"); + } + + /* Bind the root page of this table within the original database to + ** SELECT statement p1->pSel. The SELECT statement will then iterate + ** through cells that look like they belong to table pTab. */ + sqlite3_bind_int64(pSel, 1, iRoot); + + p1->nVal = 0; + p1->bHaveRowid = 0; + p1->iPrevPage = -1; + p1->iPrevCell = -1; + }else{ + return SQLITE_DONE; + } + } + assert( p->errCode!=SQLITE_OK || p1->pTab ); + + if( p->errCode==SQLITE_OK && sqlite3_step(pSel)==SQLITE_ROW ){ + RecoverTable *pTab = p1->pTab; + + i64 iPage = sqlite3_column_int64(pSel, 0); + int iCell = sqlite3_column_int(pSel, 1); + int iField = sqlite3_column_int(pSel, 2); + sqlite3_value *pVal = sqlite3_column_value(pSel, 3); + int bNewCell = (p1->iPrevPage!=iPage || p1->iPrevCell!=iCell); + + assert( bNewCell==0 || (iField==-1 || iField==0) ); + assert( bNewCell || iField==p1->nVal || p1->nVal==pTab->nCol ); + + if( bNewCell ){ + int ii = 0; + if( p1->nVal>=0 ){ + if( p1->pInsert==0 || p1->nVal!=p1->nInsert ){ + recoverFinalize(p, p1->pInsert); + p1->pInsert = recoverInsertStmt(p, pTab, p1->nVal); + p1->nInsert = p1->nVal; + } + if( p1->nVal>0 ){ + sqlite3_stmt *pInsert = p1->pInsert; + for(ii=0; ii<pTab->nCol; ii++){ + RecoverColumn *pCol = &pTab->aCol[ii]; + int iBind = pCol->iBind; + if( iBind>0 ){ + if( pCol->bIPK ){ + sqlite3_bind_int64(pInsert, iBind, p1->iRowid); + }else if( pCol->iField<p1->nVal ){ + recoverBindValue(p, pInsert, iBind, apVal[pCol->iField]); + } + } + } + if( p->bRecoverRowid && pTab->iRowidBind>0 && p1->bHaveRowid ){ + sqlite3_bind_int64(pInsert, pTab->iRowidBind, p1->iRowid); + } + if( SQLITE_ROW==sqlite3_step(pInsert) ){ + const char *z = (const char*)sqlite3_column_text(pInsert, 0); + recoverSqlCallback(p, z); + } + recoverReset(p, pInsert); + assert( p->errCode || pInsert ); + if( pInsert ) sqlite3_clear_bindings(pInsert); + } + } + + for(ii=0; ii<p1->nVal; ii++){ + sqlite3_value_free(apVal[ii]); + apVal[ii] = 0; + } + p1->nVal = -1; + p1->bHaveRowid = 0; + } + + if( iPage!=0 ){ + if( iField<0 ){ + p1->iRowid = sqlite3_column_int64(pSel, 3); + assert( p1->nVal==-1 ); + p1->nVal = 0; + p1->bHaveRowid = 1; + }else if( iField<pTab->nCol ){ + assert( apVal[iField]==0 ); + apVal[iField] = sqlite3_value_dup( pVal ); + if( apVal[iField]==0 ){ + recoverError(p, SQLITE_NOMEM, 0); + } + p1->nVal = iField+1; + } + p1->iPrevCell = iCell; + p1->iPrevPage = iPage; + } + }else{ + recoverReset(p, pSel); + p1->pTab = 0; + } + + return p->errCode; +} + +/* +** Initialize resources required by sqlite3_recover_step() in +** RECOVER_STATE_LOSTANDFOUND1 state - during which the set of pages not +** already allocated to a recovered schema element is determined. +*/ +static void recoverLostAndFound1Init(sqlite3_recover *p){ + RecoverStateLAF *pLaf = &p->laf; + sqlite3_stmt *pStmt = 0; + + assert( p->laf.pUsed==0 ); + pLaf->nPg = recoverPageCount(p); + pLaf->pUsed = recoverBitmapAlloc(p, pLaf->nPg); + + /* Prepare a statement to iterate through all pages that are part of any tree + ** in the recoverable part of the input database schema to the bitmap. And, + ** if !p->bFreelistCorrupt, add all pages that appear to be part of the + ** freelist. */ + pStmt = recoverPrepare( + p, p->dbOut, + "WITH trunk(pgno) AS (" + " SELECT read_i32(getpage(1), 8) AS x WHERE x>0" + " UNION" + " SELECT read_i32(getpage(trunk.pgno), 0) AS x FROM trunk WHERE x>0" + ")," + "trunkdata(pgno, data) AS (" + " SELECT pgno, getpage(pgno) FROM trunk" + ")," + "freelist(data, n, freepgno) AS (" + " SELECT data, min(16384, read_i32(data, 1)-1), pgno FROM trunkdata" + " UNION ALL" + " SELECT data, n-1, read_i32(data, 2+n) FROM freelist WHERE n>=0" + ")," + "" + "roots(r) AS (" + " SELECT 1 UNION ALL" + " SELECT rootpage FROM recovery.schema WHERE rootpage>0" + ")," + "used(page) AS (" + " SELECT r FROM roots" + " UNION" + " SELECT child FROM sqlite_dbptr('getpage()'), used " + " WHERE pgno=page" + ") " + "SELECT page FROM used" + " UNION ALL " + "SELECT freepgno FROM freelist WHERE NOT ?" + ); + if( pStmt ) sqlite3_bind_int(pStmt, 1, p->bFreelistCorrupt); + pLaf->pUsedPages = pStmt; +} + +/* +** Perform one step (sqlite3_recover_step()) of work for the connection +** passed as the only argument, which is guaranteed to be in +** RECOVER_STATE_LOSTANDFOUND1 state - during which the set of pages not +** already allocated to a recovered schema element is determined. +*/ +static int recoverLostAndFound1Step(sqlite3_recover *p){ + RecoverStateLAF *pLaf = &p->laf; + int rc = p->errCode; + if( rc==SQLITE_OK ){ + rc = sqlite3_step(pLaf->pUsedPages); + if( rc==SQLITE_ROW ){ + i64 iPg = sqlite3_column_int64(pLaf->pUsedPages, 0); + recoverBitmapSet(pLaf->pUsed, iPg); + rc = SQLITE_OK; + }else{ + recoverFinalize(p, pLaf->pUsedPages); + pLaf->pUsedPages = 0; + } + } + return rc; +} + +/* +** Initialize resources required by RECOVER_STATE_LOSTANDFOUND2 +** state - during which the pages identified in RECOVER_STATE_LOSTANDFOUND1 +** are sorted into sets that likely belonged to the same database tree. +*/ +static void recoverLostAndFound2Init(sqlite3_recover *p){ + RecoverStateLAF *pLaf = &p->laf; + + assert( p->laf.pAllAndParent==0 ); + assert( p->laf.pMapInsert==0 ); + assert( p->laf.pMaxField==0 ); + assert( p->laf.nMaxField==0 ); + + pLaf->pMapInsert = recoverPrepare(p, p->dbOut, + "INSERT OR IGNORE INTO recovery.map(pgno, parent) VALUES(?, ?)" + ); + pLaf->pAllAndParent = recoverPreparePrintf(p, p->dbOut, + "WITH RECURSIVE seq(ii) AS (" + " SELECT 1 UNION ALL SELECT ii+1 FROM seq WHERE ii<%lld" + ")" + "SELECT pgno, child FROM sqlite_dbptr('getpage()') " + " UNION ALL " + "SELECT NULL, ii FROM seq", p->laf.nPg + ); + pLaf->pMaxField = recoverPreparePrintf(p, p->dbOut, + "SELECT max(field)+1 FROM sqlite_dbdata('getpage') WHERE pgno = ?" + ); +} + +/* +** Perform one step (sqlite3_recover_step()) of work for the connection +** passed as the only argument, which is guaranteed to be in +** RECOVER_STATE_LOSTANDFOUND2 state - during which the pages identified +** in RECOVER_STATE_LOSTANDFOUND1 are sorted into sets that likely belonged +** to the same database tree. +*/ +static int recoverLostAndFound2Step(sqlite3_recover *p){ + RecoverStateLAF *pLaf = &p->laf; + if( p->errCode==SQLITE_OK ){ + int res = sqlite3_step(pLaf->pAllAndParent); + if( res==SQLITE_ROW ){ + i64 iChild = sqlite3_column_int(pLaf->pAllAndParent, 1); + if( recoverBitmapQuery(pLaf->pUsed, iChild)==0 ){ + sqlite3_bind_int64(pLaf->pMapInsert, 1, iChild); + sqlite3_bind_value(pLaf->pMapInsert, 2, + sqlite3_column_value(pLaf->pAllAndParent, 0) + ); + sqlite3_step(pLaf->pMapInsert); + recoverReset(p, pLaf->pMapInsert); + sqlite3_bind_int64(pLaf->pMaxField, 1, iChild); + if( SQLITE_ROW==sqlite3_step(pLaf->pMaxField) ){ + int nMax = sqlite3_column_int(pLaf->pMaxField, 0); + if( nMax>pLaf->nMaxField ) pLaf->nMaxField = nMax; + } + recoverReset(p, pLaf->pMaxField); + } + }else{ + recoverFinalize(p, pLaf->pAllAndParent); + pLaf->pAllAndParent =0; + return SQLITE_DONE; + } + } + return p->errCode; +} + +/* +** Free all resources allocated as part of sqlite3_recover_step() calls +** in one of the RECOVER_STATE_LOSTANDFOUND[123] states. +*/ +static void recoverLostAndFoundCleanup(sqlite3_recover *p){ + recoverBitmapFree(p->laf.pUsed); + p->laf.pUsed = 0; + sqlite3_finalize(p->laf.pUsedPages); + sqlite3_finalize(p->laf.pAllAndParent); + sqlite3_finalize(p->laf.pMapInsert); + sqlite3_finalize(p->laf.pMaxField); + sqlite3_finalize(p->laf.pFindRoot); + sqlite3_finalize(p->laf.pInsert); + sqlite3_finalize(p->laf.pAllPage); + sqlite3_finalize(p->laf.pPageData); + p->laf.pUsedPages = 0; + p->laf.pAllAndParent = 0; + p->laf.pMapInsert = 0; + p->laf.pMaxField = 0; + p->laf.pFindRoot = 0; + p->laf.pInsert = 0; + p->laf.pAllPage = 0; + p->laf.pPageData = 0; + sqlite3_free(p->laf.apVal); + p->laf.apVal = 0; +} + +/* +** Free all resources allocated as part of sqlite3_recover_step() calls. +*/ +static void recoverFinalCleanup(sqlite3_recover *p){ + RecoverTable *pTab = 0; + RecoverTable *pNext = 0; + + recoverWriteDataCleanup(p); + recoverLostAndFoundCleanup(p); + + for(pTab=p->pTblList; pTab; pTab=pNext){ + pNext = pTab->pNext; + sqlite3_free(pTab); + } + p->pTblList = 0; + sqlite3_finalize(p->pGetPage); + p->pGetPage = 0; + sqlite3_file_control(p->dbIn, p->zDb, SQLITE_FCNTL_RESET_CACHE, 0); + + { +#ifndef NDEBUG + int res = +#endif + sqlite3_close(p->dbOut); + assert( res==SQLITE_OK ); + } + p->dbOut = 0; +} + +/* +** Decode and return an unsigned 16-bit big-endian integer value from +** buffer a[]. +*/ +static u32 recoverGetU16(const u8 *a){ + return (((u32)a[0])<<8) + ((u32)a[1]); +} + +/* +** Decode and return an unsigned 32-bit big-endian integer value from +** buffer a[]. +*/ +static u32 recoverGetU32(const u8 *a){ + return (((u32)a[0])<<24) + (((u32)a[1])<<16) + (((u32)a[2])<<8) + ((u32)a[3]); +} + +/* +** Decode an SQLite varint from buffer a[]. Write the decoded value to (*pVal) +** and return the number of bytes consumed. +*/ +static int recoverGetVarint(const u8 *a, i64 *pVal){ + sqlite3_uint64 u = 0; + int i; + for(i=0; i<8; i++){ + u = (u<<7) + (a[i]&0x7f); + if( (a[i]&0x80)==0 ){ *pVal = (sqlite3_int64)u; return i+1; } + } + u = (u<<8) + (a[i]&0xff); + *pVal = (sqlite3_int64)u; + return 9; +} + +/* +** The second argument points to a buffer n bytes in size. If this buffer +** or a prefix thereof appears to contain a well-formed SQLite b-tree page, +** return the page-size in bytes. Otherwise, if the buffer does not +** appear to contain a well-formed b-tree page, return 0. +*/ +static int recoverIsValidPage(u8 *aTmp, const u8 *a, int n){ + u8 *aUsed = aTmp; + int nFrag = 0; + int nActual = 0; + int iFree = 0; + int nCell = 0; /* Number of cells on page */ + int iCellOff = 0; /* Offset of cell array in page */ + int iContent = 0; + int eType = 0; + int ii = 0; + + eType = (int)a[0]; + if( eType!=0x02 && eType!=0x05 && eType!=0x0A && eType!=0x0D ) return 0; + + iFree = (int)recoverGetU16(&a[1]); + nCell = (int)recoverGetU16(&a[3]); + iContent = (int)recoverGetU16(&a[5]); + if( iContent==0 ) iContent = 65536; + nFrag = (int)a[7]; + + if( iContent>n ) return 0; + + memset(aUsed, 0, n); + memset(aUsed, 0xFF, iContent); + + /* Follow the free-list. This is the same format for all b-tree pages. */ + if( iFree && iFree<=iContent ) return 0; + while( iFree ){ + int iNext = 0; + int nByte = 0; + if( iFree>(n-4) ) return 0; + iNext = recoverGetU16(&a[iFree]); + nByte = recoverGetU16(&a[iFree+2]); + if( iFree+nByte>n ) return 0; + if( iNext && iNext<iFree+nByte ) return 0; + memset(&aUsed[iFree], 0xFF, nByte); + iFree = iNext; + } + + /* Run through the cells */ + if( eType==0x02 || eType==0x05 ){ + iCellOff = 12; + }else{ + iCellOff = 8; + } + if( (iCellOff + 2*nCell)>iContent ) return 0; + for(ii=0; ii<nCell; ii++){ + int iByte; + i64 nPayload = 0; + int nByte = 0; + int iOff = recoverGetU16(&a[iCellOff + 2*ii]); + if( iOff<iContent || iOff>n ){ + return 0; + } + if( eType==0x05 || eType==0x02 ) nByte += 4; + nByte += recoverGetVarint(&a[iOff+nByte], &nPayload); + if( eType==0x0D ){ + i64 dummy = 0; + nByte += recoverGetVarint(&a[iOff+nByte], &dummy); + } + if( eType!=0x05 ){ + int X = (eType==0x0D) ? n-35 : (((n-12)*64/255)-23); + int M = ((n-12)*32/255)-23; + int K = M+((nPayload-M)%(n-4)); + + if( nPayload<X ){ + nByte += nPayload; + }else if( K<=X ){ + nByte += K+4; + }else{ + nByte += M+4; + } + } + + if( iOff+nByte>n ){ + return 0; + } + for(iByte=iOff; iByte<(iOff+nByte); iByte++){ + if( aUsed[iByte]!=0 ){ + return 0; + } + aUsed[iByte] = 0xFF; + } + } + + nActual = 0; + for(ii=0; ii<n; ii++){ + if( aUsed[ii]==0 ) nActual++; + } + return (nActual==nFrag); +} + + +static int recoverVfsClose(sqlite3_file*); +static int recoverVfsRead(sqlite3_file*, void*, int iAmt, sqlite3_int64 iOfst); +static int recoverVfsWrite(sqlite3_file*, const void*, int, sqlite3_int64); +static int recoverVfsTruncate(sqlite3_file*, sqlite3_int64 size); +static int recoverVfsSync(sqlite3_file*, int flags); +static int recoverVfsFileSize(sqlite3_file*, sqlite3_int64 *pSize); +static int recoverVfsLock(sqlite3_file*, int); +static int recoverVfsUnlock(sqlite3_file*, int); +static int recoverVfsCheckReservedLock(sqlite3_file*, int *pResOut); +static int recoverVfsFileControl(sqlite3_file*, int op, void *pArg); +static int recoverVfsSectorSize(sqlite3_file*); +static int recoverVfsDeviceCharacteristics(sqlite3_file*); +static int recoverVfsShmMap(sqlite3_file*, int, int, int, void volatile**); +static int recoverVfsShmLock(sqlite3_file*, int offset, int n, int flags); +static void recoverVfsShmBarrier(sqlite3_file*); +static int recoverVfsShmUnmap(sqlite3_file*, int deleteFlag); +static int recoverVfsFetch(sqlite3_file*, sqlite3_int64, int, void**); +static int recoverVfsUnfetch(sqlite3_file *pFd, sqlite3_int64 iOff, void *p); + +static sqlite3_io_methods recover_methods = { + 2, /* iVersion */ + recoverVfsClose, + recoverVfsRead, + recoverVfsWrite, + recoverVfsTruncate, + recoverVfsSync, + recoverVfsFileSize, + recoverVfsLock, + recoverVfsUnlock, + recoverVfsCheckReservedLock, + recoverVfsFileControl, + recoverVfsSectorSize, + recoverVfsDeviceCharacteristics, + recoverVfsShmMap, + recoverVfsShmLock, + recoverVfsShmBarrier, + recoverVfsShmUnmap, + recoverVfsFetch, + recoverVfsUnfetch +}; + +static int recoverVfsClose(sqlite3_file *pFd){ + assert( pFd->pMethods!=&recover_methods ); + return pFd->pMethods->xClose(pFd); +} + +/* +** Write value v to buffer a[] as a 16-bit big-endian unsigned integer. +*/ +static void recoverPutU16(u8 *a, u32 v){ + a[0] = (v>>8) & 0x00FF; + a[1] = (v>>0) & 0x00FF; +} + +/* +** Write value v to buffer a[] as a 32-bit big-endian unsigned integer. +*/ +static void recoverPutU32(u8 *a, u32 v){ + a[0] = (v>>24) & 0x00FF; + a[1] = (v>>16) & 0x00FF; + a[2] = (v>>8) & 0x00FF; + a[3] = (v>>0) & 0x00FF; +} + +/* +** Detect the page-size of the database opened by file-handle pFd by +** searching the first part of the file for a well-formed SQLite b-tree +** page. If parameter nReserve is non-zero, then as well as searching for +** a b-tree page with zero reserved bytes, this function searches for one +** with nReserve reserved bytes at the end of it. +** +** If successful, set variable p->detected_pgsz to the detected page-size +** in bytes and return SQLITE_OK. Or, if no error occurs but no valid page +** can be found, return SQLITE_OK but leave p->detected_pgsz set to 0. Or, +** if an error occurs (e.g. an IO or OOM error), then an SQLite error code +** is returned. The final value of p->detected_pgsz is undefined in this +** case. +*/ +static int recoverVfsDetectPagesize( + sqlite3_recover *p, /* Recover handle */ + sqlite3_file *pFd, /* File-handle open on input database */ + u32 nReserve, /* Possible nReserve value */ + i64 nSz /* Size of database file in bytes */ +){ + int rc = SQLITE_OK; + const int nMin = 512; + const int nMax = 65536; + const int nMaxBlk = 4; + u32 pgsz = 0; + int iBlk = 0; + u8 *aPg = 0; + u8 *aTmp = 0; + int nBlk = 0; + + aPg = (u8*)sqlite3_malloc(2*nMax); + if( aPg==0 ) return SQLITE_NOMEM; + aTmp = &aPg[nMax]; + + nBlk = (nSz+nMax-1)/nMax; + if( nBlk>nMaxBlk ) nBlk = nMaxBlk; + + do { + for(iBlk=0; rc==SQLITE_OK && iBlk<nBlk; iBlk++){ + int nByte = (nSz>=((iBlk+1)*nMax)) ? nMax : (nSz % nMax); + memset(aPg, 0, nMax); + rc = pFd->pMethods->xRead(pFd, aPg, nByte, iBlk*nMax); + if( rc==SQLITE_OK ){ + int pgsz2; + for(pgsz2=(pgsz ? pgsz*2 : nMin); pgsz2<=nMax; pgsz2=pgsz2*2){ + int iOff; + for(iOff=0; iOff<nMax; iOff+=pgsz2){ + if( recoverIsValidPage(aTmp, &aPg[iOff], pgsz2-nReserve) ){ + pgsz = pgsz2; + break; + } + } + } + } + } + if( pgsz>(u32)p->detected_pgsz ){ + p->detected_pgsz = pgsz; + p->nReserve = nReserve; + } + if( nReserve==0 ) break; + nReserve = 0; + }while( 1 ); + + p->detected_pgsz = pgsz; + sqlite3_free(aPg); + return rc; +} + +/* +** The xRead() method of the wrapper VFS. This is used to intercept calls +** to read page 1 of the input database. +*/ +static int recoverVfsRead(sqlite3_file *pFd, void *aBuf, int nByte, i64 iOff){ + int rc = SQLITE_OK; + if( pFd->pMethods==&recover_methods ){ + pFd->pMethods = recover_g.pMethods; + rc = pFd->pMethods->xRead(pFd, aBuf, nByte, iOff); + if( nByte==16 ){ + sqlite3_randomness(16, aBuf); + }else + if( rc==SQLITE_OK && iOff==0 && nByte>=108 ){ + /* Ensure that the database has a valid header file. The only fields + ** that really matter to recovery are: + ** + ** + Database page size (16-bits at offset 16) + ** + Size of db in pages (32-bits at offset 28) + ** + Database encoding (32-bits at offset 56) + ** + ** Also preserved are: + ** + ** + first freelist page (32-bits at offset 32) + ** + size of freelist (32-bits at offset 36) + ** + the wal-mode flags (16-bits at offset 18) + ** + ** We also try to preserve the auto-vacuum, incr-value, user-version + ** and application-id fields - all 32 bit quantities at offsets + ** 52, 60, 64 and 68. All other fields are set to known good values. + ** + ** Byte offset 105 should also contain the page-size as a 16-bit + ** integer. + */ + const int aPreserve[] = {32, 36, 52, 60, 64, 68}; + u8 aHdr[108] = { + 0x53, 0x51, 0x4c, 0x69, 0x74, 0x65, 0x20, 0x66, + 0x6f, 0x72, 0x6d, 0x61, 0x74, 0x20, 0x33, 0x00, + 0xFF, 0xFF, 0x01, 0x01, 0x00, 0x40, 0x20, 0x20, + 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, + 0x00, 0x00, 0x10, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x2e, 0x5b, 0x30, + + 0x0D, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x00 + }; + u8 *a = (u8*)aBuf; + + u32 pgsz = recoverGetU16(&a[16]); + u32 nReserve = a[20]; + u32 enc = recoverGetU32(&a[56]); + u32 dbsz = 0; + i64 dbFileSize = 0; + int ii; + sqlite3_recover *p = recover_g.p; + + if( pgsz==0x01 ) pgsz = 65536; + rc = pFd->pMethods->xFileSize(pFd, &dbFileSize); + + if( rc==SQLITE_OK && p->detected_pgsz==0 ){ + rc = recoverVfsDetectPagesize(p, pFd, nReserve, dbFileSize); + } + if( p->detected_pgsz ){ + pgsz = p->detected_pgsz; + nReserve = p->nReserve; + } + + if( pgsz ){ + dbsz = dbFileSize / pgsz; + } + if( enc!=SQLITE_UTF8 && enc!=SQLITE_UTF16BE && enc!=SQLITE_UTF16LE ){ + enc = SQLITE_UTF8; + } + + sqlite3_free(p->pPage1Cache); + p->pPage1Cache = 0; + p->pPage1Disk = 0; + + p->pgsz = nByte; + p->pPage1Cache = (u8*)recoverMalloc(p, nByte*2); + if( p->pPage1Cache ){ + p->pPage1Disk = &p->pPage1Cache[nByte]; + memcpy(p->pPage1Disk, aBuf, nByte); + aHdr[18] = a[18]; + aHdr[19] = a[19]; + recoverPutU32(&aHdr[28], dbsz); + recoverPutU32(&aHdr[56], enc); + recoverPutU16(&aHdr[105], pgsz-nReserve); + if( pgsz==65536 ) pgsz = 1; + recoverPutU16(&aHdr[16], pgsz); + aHdr[20] = nReserve; + for(ii=0; ii<(int)(sizeof(aPreserve)/sizeof(aPreserve[0])); ii++){ + memcpy(&aHdr[aPreserve[ii]], &a[aPreserve[ii]], 4); + } + memcpy(aBuf, aHdr, sizeof(aHdr)); + memset(&((u8*)aBuf)[sizeof(aHdr)], 0, nByte-sizeof(aHdr)); + + memcpy(p->pPage1Cache, aBuf, nByte); + }else{ + rc = p->errCode; + } + + } + pFd->pMethods = &recover_methods; + }else{ + rc = pFd->pMethods->xRead(pFd, aBuf, nByte, iOff); + } + return rc; +} + +/* +** Used to make sqlite3_io_methods wrapper methods less verbose. +*/ +#define RECOVER_VFS_WRAPPER(code) \ + int rc = SQLITE_OK; \ + if( pFd->pMethods==&recover_methods ){ \ + pFd->pMethods = recover_g.pMethods; \ + rc = code; \ + pFd->pMethods = &recover_methods; \ + }else{ \ + rc = code; \ + } \ + return rc; + +/* +** Methods of the wrapper VFS. All methods except for xRead() and xClose() +** simply uninstall the sqlite3_io_methods wrapper, invoke the equivalent +** method on the lower level VFS, then reinstall the wrapper before returning. +** Those that return an integer value use the RECOVER_VFS_WRAPPER macro. +*/ +static int recoverVfsWrite( + sqlite3_file *pFd, const void *aBuf, int nByte, i64 iOff +){ + RECOVER_VFS_WRAPPER ( + pFd->pMethods->xWrite(pFd, aBuf, nByte, iOff) + ); +} +static int recoverVfsTruncate(sqlite3_file *pFd, sqlite3_int64 size){ + RECOVER_VFS_WRAPPER ( + pFd->pMethods->xTruncate(pFd, size) + ); +} +static int recoverVfsSync(sqlite3_file *pFd, int flags){ + RECOVER_VFS_WRAPPER ( + pFd->pMethods->xSync(pFd, flags) + ); +} +static int recoverVfsFileSize(sqlite3_file *pFd, sqlite3_int64 *pSize){ + RECOVER_VFS_WRAPPER ( + pFd->pMethods->xFileSize(pFd, pSize) + ); +} +static int recoverVfsLock(sqlite3_file *pFd, int eLock){ + RECOVER_VFS_WRAPPER ( + pFd->pMethods->xLock(pFd, eLock) + ); +} +static int recoverVfsUnlock(sqlite3_file *pFd, int eLock){ + RECOVER_VFS_WRAPPER ( + pFd->pMethods->xUnlock(pFd, eLock) + ); +} +static int recoverVfsCheckReservedLock(sqlite3_file *pFd, int *pResOut){ + RECOVER_VFS_WRAPPER ( + pFd->pMethods->xCheckReservedLock(pFd, pResOut) + ); +} +static int recoverVfsFileControl(sqlite3_file *pFd, int op, void *pArg){ + RECOVER_VFS_WRAPPER ( + (pFd->pMethods ? pFd->pMethods->xFileControl(pFd, op, pArg) : SQLITE_NOTFOUND) + ); +} +static int recoverVfsSectorSize(sqlite3_file *pFd){ + RECOVER_VFS_WRAPPER ( + pFd->pMethods->xSectorSize(pFd) + ); +} +static int recoverVfsDeviceCharacteristics(sqlite3_file *pFd){ + RECOVER_VFS_WRAPPER ( + pFd->pMethods->xDeviceCharacteristics(pFd) + ); +} +static int recoverVfsShmMap( + sqlite3_file *pFd, int iPg, int pgsz, int bExtend, void volatile **pp +){ + RECOVER_VFS_WRAPPER ( + pFd->pMethods->xShmMap(pFd, iPg, pgsz, bExtend, pp) + ); +} +static int recoverVfsShmLock(sqlite3_file *pFd, int offset, int n, int flags){ + RECOVER_VFS_WRAPPER ( + pFd->pMethods->xShmLock(pFd, offset, n, flags) + ); +} +static void recoverVfsShmBarrier(sqlite3_file *pFd){ + if( pFd->pMethods==&recover_methods ){ + pFd->pMethods = recover_g.pMethods; + pFd->pMethods->xShmBarrier(pFd); + pFd->pMethods = &recover_methods; + }else{ + pFd->pMethods->xShmBarrier(pFd); + } +} +static int recoverVfsShmUnmap(sqlite3_file *pFd, int deleteFlag){ + RECOVER_VFS_WRAPPER ( + pFd->pMethods->xShmUnmap(pFd, deleteFlag) + ); +} + +static int recoverVfsFetch( + sqlite3_file *pFd, + sqlite3_int64 iOff, + int iAmt, + void **pp +){ + (void)pFd; + (void)iOff; + (void)iAmt; + *pp = 0; + return SQLITE_OK; +} +static int recoverVfsUnfetch(sqlite3_file *pFd, sqlite3_int64 iOff, void *p){ + (void)pFd; + (void)iOff; + (void)p; + return SQLITE_OK; +} + +/* +** Install the VFS wrapper around the file-descriptor open on the input +** database for recover handle p. Mutex RECOVER_MUTEX_ID must be held +** when this function is called. +*/ +static void recoverInstallWrapper(sqlite3_recover *p){ + sqlite3_file *pFd = 0; + assert( recover_g.pMethods==0 ); + recoverAssertMutexHeld(); + sqlite3_file_control(p->dbIn, p->zDb, SQLITE_FCNTL_FILE_POINTER, (void*)&pFd); + assert( pFd==0 || pFd->pMethods!=&recover_methods ); + if( pFd && pFd->pMethods ){ + int iVersion = 1 + (pFd->pMethods->iVersion>1 && pFd->pMethods->xShmMap!=0); + recover_g.pMethods = pFd->pMethods; + recover_g.p = p; + recover_methods.iVersion = iVersion; + pFd->pMethods = &recover_methods; + } +} + +/* +** Uninstall the VFS wrapper that was installed around the file-descriptor open +** on the input database for recover handle p. Mutex RECOVER_MUTEX_ID must be +** held when this function is called. +*/ +static void recoverUninstallWrapper(sqlite3_recover *p){ + sqlite3_file *pFd = 0; + recoverAssertMutexHeld(); + sqlite3_file_control(p->dbIn, p->zDb,SQLITE_FCNTL_FILE_POINTER,(void*)&pFd); + if( pFd && pFd->pMethods ){ + pFd->pMethods = recover_g.pMethods; + recover_g.pMethods = 0; + recover_g.p = 0; + } +} + +/* +** This function does the work of a single sqlite3_recover_step() call. It +** is guaranteed that the handle is not in an error state when this +** function is called. +*/ +static void recoverStep(sqlite3_recover *p){ + assert( p && p->errCode==SQLITE_OK ); + switch( p->eState ){ + case RECOVER_STATE_INIT: + /* This is the very first call to sqlite3_recover_step() on this object. + */ + recoverSqlCallback(p, "BEGIN"); + recoverSqlCallback(p, "PRAGMA writable_schema = on"); + + recoverEnterMutex(); + recoverInstallWrapper(p); + + /* Open the output database. And register required virtual tables and + ** user functions with the new handle. */ + recoverOpenOutput(p); + + /* Open transactions on both the input and output databases. */ + sqlite3_file_control(p->dbIn, p->zDb, SQLITE_FCNTL_RESET_CACHE, 0); + recoverExec(p, p->dbIn, "PRAGMA writable_schema = on"); + recoverExec(p, p->dbIn, "BEGIN"); + if( p->errCode==SQLITE_OK ) p->bCloseTransaction = 1; + recoverExec(p, p->dbIn, "SELECT 1 FROM sqlite_schema"); + recoverTransferSettings(p); + recoverOpenRecovery(p); + recoverCacheSchema(p); + + recoverUninstallWrapper(p); + recoverLeaveMutex(); + + recoverExec(p, p->dbOut, "BEGIN"); + + recoverWriteSchema1(p); + p->eState = RECOVER_STATE_WRITING; + break; + + case RECOVER_STATE_WRITING: { + if( p->w1.pTbls==0 ){ + recoverWriteDataInit(p); + } + if( SQLITE_DONE==recoverWriteDataStep(p) ){ + recoverWriteDataCleanup(p); + if( p->zLostAndFound ){ + p->eState = RECOVER_STATE_LOSTANDFOUND1; + }else{ + p->eState = RECOVER_STATE_SCHEMA2; + } + } + break; + } + + case RECOVER_STATE_LOSTANDFOUND1: { + if( p->laf.pUsed==0 ){ + recoverLostAndFound1Init(p); + } + if( SQLITE_DONE==recoverLostAndFound1Step(p) ){ + p->eState = RECOVER_STATE_LOSTANDFOUND2; + } + break; + } + case RECOVER_STATE_LOSTANDFOUND2: { + if( p->laf.pAllAndParent==0 ){ + recoverLostAndFound2Init(p); + } + if( SQLITE_DONE==recoverLostAndFound2Step(p) ){ + p->eState = RECOVER_STATE_LOSTANDFOUND3; + } + break; + } + + case RECOVER_STATE_LOSTANDFOUND3: { + if( p->laf.pInsert==0 ){ + recoverLostAndFound3Init(p); + } + if( SQLITE_DONE==recoverLostAndFound3Step(p) ){ + p->eState = RECOVER_STATE_SCHEMA2; + } + break; + } + + case RECOVER_STATE_SCHEMA2: { + int rc = SQLITE_OK; + + recoverWriteSchema2(p); + p->eState = RECOVER_STATE_DONE; + + /* If no error has occurred, commit the write transaction on the output + ** database. Regardless of whether or not an error has occurred, make + ** an attempt to end the read transaction on the input database. */ + recoverExec(p, p->dbOut, "COMMIT"); + rc = sqlite3_exec(p->dbIn, "END", 0, 0, 0); + if( p->errCode==SQLITE_OK ) p->errCode = rc; + + recoverSqlCallback(p, "PRAGMA writable_schema = off"); + recoverSqlCallback(p, "COMMIT"); + p->eState = RECOVER_STATE_DONE; + recoverFinalCleanup(p); + break; + }; + + case RECOVER_STATE_DONE: { + /* no-op */ + break; + }; + } +} + + +/* +** This is a worker function that does the heavy lifting for both init +** functions: +** +** sqlite3_recover_init() +** sqlite3_recover_init_sql() +** +** All this function does is allocate space for the recover handle and +** take copies of the input parameters. All the real work is done within +** sqlite3_recover_run(). +*/ +sqlite3_recover *recoverInit( + sqlite3* db, + const char *zDb, + const char *zUri, /* Output URI for _recover_init() */ + int (*xSql)(void*, const char*),/* SQL callback for _recover_init_sql() */ + void *pSqlCtx /* Context arg for _recover_init_sql() */ +){ + sqlite3_recover *pRet = 0; + int nDb = 0; + int nUri = 0; + int nByte = 0; + + if( zDb==0 ){ zDb = "main"; } + + nDb = recoverStrlen(zDb); + nUri = recoverStrlen(zUri); + + nByte = sizeof(sqlite3_recover) + nDb+1 + nUri+1; + pRet = (sqlite3_recover*)sqlite3_malloc(nByte); + if( pRet ){ + memset(pRet, 0, nByte); + pRet->dbIn = db; + pRet->zDb = (char*)&pRet[1]; + pRet->zUri = &pRet->zDb[nDb+1]; + memcpy(pRet->zDb, zDb, nDb); + if( nUri>0 && zUri ) memcpy(pRet->zUri, zUri, nUri); + pRet->xSql = xSql; + pRet->pSqlCtx = pSqlCtx; + pRet->bRecoverRowid = RECOVER_ROWID_DEFAULT; + } + + return pRet; +} + +/* +** Initialize a recovery handle that creates a new database containing +** the recovered data. +*/ +sqlite3_recover *sqlite3_recover_init( + sqlite3* db, + const char *zDb, + const char *zUri +){ + return recoverInit(db, zDb, zUri, 0, 0); +} + +/* +** Initialize a recovery handle that returns recovered data in the +** form of SQL statements via a callback. +*/ +sqlite3_recover *sqlite3_recover_init_sql( + sqlite3* db, + const char *zDb, + int (*xSql)(void*, const char*), + void *pSqlCtx +){ + return recoverInit(db, zDb, 0, xSql, pSqlCtx); +} + +/* +** Return the handle error message, if any. +*/ +const char *sqlite3_recover_errmsg(sqlite3_recover *p){ + return (p && p->errCode!=SQLITE_NOMEM) ? p->zErrMsg : "out of memory"; +} + +/* +** Return the handle error code. +*/ +int sqlite3_recover_errcode(sqlite3_recover *p){ + return p ? p->errCode : SQLITE_NOMEM; +} + +/* +** Configure the handle. +*/ +int sqlite3_recover_config(sqlite3_recover *p, int op, void *pArg){ + int rc = SQLITE_OK; + if( p==0 ){ + rc = SQLITE_NOMEM; + }else if( p->eState!=RECOVER_STATE_INIT ){ + rc = SQLITE_MISUSE; + }else{ + switch( op ){ + case 789: + /* This undocumented magic configuration option is used to set the + ** name of the auxiliary database that is ATTACH-ed to the database + ** connection and used to hold state information during the + ** recovery process. This option is for debugging use only and + ** is subject to change or removal at any time. */ + sqlite3_free(p->zStateDb); + p->zStateDb = recoverMPrintf(p, "%s", (char*)pArg); + break; + + case SQLITE_RECOVER_LOST_AND_FOUND: { + const char *zArg = (const char*)pArg; + sqlite3_free(p->zLostAndFound); + if( zArg ){ + p->zLostAndFound = recoverMPrintf(p, "%s", zArg); + }else{ + p->zLostAndFound = 0; + } + break; + } + + case SQLITE_RECOVER_FREELIST_CORRUPT: + p->bFreelistCorrupt = *(int*)pArg; + break; + + case SQLITE_RECOVER_ROWIDS: + p->bRecoverRowid = *(int*)pArg; + break; + + case SQLITE_RECOVER_SLOWINDEXES: + p->bSlowIndexes = *(int*)pArg; + break; + + default: + rc = SQLITE_NOTFOUND; + break; + } + } + + return rc; +} + +/* +** Do a unit of work towards the recovery job. Return SQLITE_OK if +** no error has occurred but database recovery is not finished, SQLITE_DONE +** if database recovery has been successfully completed, or an SQLite +** error code if an error has occurred. +*/ +int sqlite3_recover_step(sqlite3_recover *p){ + if( p==0 ) return SQLITE_NOMEM; + if( p->errCode==SQLITE_OK ) recoverStep(p); + if( p->eState==RECOVER_STATE_DONE && p->errCode==SQLITE_OK ){ + return SQLITE_DONE; + } + return p->errCode; +} + +/* +** Do the configured recovery operation. Return SQLITE_OK if successful, or +** else an SQLite error code. +*/ +int sqlite3_recover_run(sqlite3_recover *p){ + while( SQLITE_OK==sqlite3_recover_step(p) ); + return sqlite3_recover_errcode(p); +} + + +/* +** Free all resources associated with the recover handle passed as the only +** argument. The results of using a handle with any sqlite3_recover_** +** API function after it has been passed to this function are undefined. +** +** A copy of the value returned by the first call made to sqlite3_recover_run() +** on this handle is returned, or SQLITE_OK if sqlite3_recover_run() has +** not been called on this handle. +*/ +int sqlite3_recover_finish(sqlite3_recover *p){ + int rc; + if( p==0 ){ + rc = SQLITE_NOMEM; + }else{ + recoverFinalCleanup(p); + if( p->bCloseTransaction && sqlite3_get_autocommit(p->dbIn)==0 ){ + rc = sqlite3_exec(p->dbIn, "END", 0, 0, 0); + if( p->errCode==SQLITE_OK ) p->errCode = rc; + } + rc = p->errCode; + sqlite3_free(p->zErrMsg); + sqlite3_free(p->zStateDb); + sqlite3_free(p->zLostAndFound); + sqlite3_free(p->pPage1Cache); + sqlite3_free(p); + } + return rc; +} + +#endif /* ifndef SQLITE_OMIT_VIRTUALTABLE */ + +/************************* End ../ext/recover/sqlite3recover.c ********************/ +# endif +#endif +#ifdef SQLITE_SHELL_EXTSRC +# include SHELL_STRINGIFY(SQLITE_SHELL_EXTSRC) #endif #if defined(SQLITE_ENABLE_SESSION) @@ -12250,15 +16460,16 @@ struct ShellState { char *zNonce; /* Nonce for temporary safe-mode excapes */ EQPGraph sGraph; /* Information for the graphical EXPLAIN QUERY PLAN */ ExpertInfo expert; /* Valid if previous command was ".expert OPT..." */ -#ifdef SQLITE_SHELL_WASM_MODE +#ifdef SQLITE_SHELL_FIDDLE struct { const char * zInput; /* Input string from wasm/JS proxy */ const char * zPos; /* Cursor pos into zInput */ + const char * zDefaultDbName; /* Default name for db file */ } wasm; #endif }; -#ifdef SQLITE_SHELL_WASM_MODE +#ifdef SQLITE_SHELL_FIDDLE static ShellState shellState; #endif @@ -12555,7 +16766,7 @@ static void editFunc( } sz = j; p[sz] = 0; - } + } sqlite3_result_text64(context, (const char*)p, sz, sqlite3_free, SQLITE_UTF8); } @@ -12590,10 +16801,23 @@ static void outputModePop(ShellState *p){ */ static void output_hex_blob(FILE *out, const void *pBlob, int nBlob){ int i; - char *zBlob = (char *)pBlob; - raw_printf(out,"X'"); - for(i=0; i<nBlob; i++){ raw_printf(out,"%02x",zBlob[i]&0xff); } - raw_printf(out,"'"); + unsigned char *aBlob = (unsigned char*)pBlob; + + char *zStr = sqlite3_malloc(nBlob*2 + 1); + shell_check_oom(zStr); + + for(i=0; i<nBlob; i++){ + static const char aHex[] = { + '0', '1', '2', '3', '4', '5', '6', '7', + '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' + }; + zStr[i*2] = aHex[ (aBlob[i] >> 4) ]; + zStr[i*2+1] = aHex[ (aBlob[i] & 0x0F) ]; + } + zStr[i*2] = '\0'; + + raw_printf(out,"X'%s'", zStr); + sqlite3_free(zStr); } /* @@ -12753,9 +16977,9 @@ static void output_c_string(FILE *out, const char *z){ /* ** Output the given string as a quoted according to JSON quoting rules. */ -static void output_json_string(FILE *out, const char *z, int n){ +static void output_json_string(FILE *out, const char *z, i64 n){ unsigned int c; - if( n<0 ) n = (int)strlen(z); + if( n<0 ) n = strlen(z); fputc('"', out); while( n-- ){ c = *(z++); @@ -12921,12 +17145,12 @@ static int safeModeAuth( "zipfile", "zipfile_cds", }; - UNUSED_PARAMETER(zA2); + UNUSED_PARAMETER(zA1); UNUSED_PARAMETER(zA3); UNUSED_PARAMETER(zA4); switch( op ){ case SQLITE_ATTACH: { -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE /* In WASM builds the filesystem is a virtual sandbox, so ** there's no harm in using ATTACH. */ failIfSafeMode(p, "cannot run ATTACH in safe mode"); @@ -12936,7 +17160,7 @@ static int safeModeAuth( case SQLITE_FUNCTION: { int i; for(i=0; i<ArraySize(azProhibitedFunctions); i++){ - if( sqlite3_stricmp(zA1, azProhibitedFunctions[i])==0 ){ + if( sqlite3_stricmp(zA2, azProhibitedFunctions[i])==0 ){ failIfSafeMode(p, "cannot use the %s() function in safe mode", azProhibitedFunctions[i]); } @@ -12999,15 +17223,37 @@ static int shellAuth( ** ** This routine converts some CREATE TABLE statements for shadow tables ** in FTS3/4/5 into CREATE TABLE IF NOT EXISTS statements. +** +** If the schema statement in z[] contains a start-of-comment and if +** sqlite3_complete() returns false, try to terminate the comment before +** printing the result. https://sqlite.org/forum/forumpost/d7be961c5c */ static void printSchemaLine(FILE *out, const char *z, const char *zTail){ + char *zToFree = 0; if( z==0 ) return; if( zTail==0 ) return; + if( zTail[0]==';' && (strstr(z, "/*")!=0 || strstr(z,"--")!=0) ){ + const char *zOrig = z; + static const char *azTerm[] = { "", "*/", "\n" }; + int i; + for(i=0; i<ArraySize(azTerm); i++){ + char *zNew = sqlite3_mprintf("%s%s;", zOrig, azTerm[i]); + if( sqlite3_complete(zNew) ){ + size_t n = strlen(zNew); + zNew[n-1] = 0; + zToFree = zNew; + z = zNew; + break; + } + sqlite3_free(zNew); + } + } if( sqlite3_strglob("CREATE TABLE ['\"]*", z)==0 ){ utf8_printf(out, "CREATE TABLE IF NOT EXISTS %s%s", z+13, zTail); }else{ utf8_printf(out, "%s%s", z, zTail); } + sqlite3_free(zToFree); } static void printSchemaLineN(FILE *out, char *z, int n, const char *zTail){ char c = z[n]; @@ -13036,7 +17282,9 @@ static int wsToEol(const char *z){ */ static void eqp_append(ShellState *p, int iEqpId, int p2, const char *zText){ EQPGraphRow *pNew; - int nText = strlen30(zText); + i64 nText; + if( zText==0 ) return; + nText = strlen(zText); if( p->autoEQPtest ){ utf8_printf(p->out, "%d,%d,%s\n", iEqpId, p2, zText); } @@ -13081,14 +17329,14 @@ static EQPGraphRow *eqp_next_row(ShellState *p, int iEqpId, EQPGraphRow *pOld){ */ static void eqp_render_level(ShellState *p, int iEqpId){ EQPGraphRow *pRow, *pNext; - int n = strlen30(p->sGraph.zPrefix); + i64 n = strlen(p->sGraph.zPrefix); char *z; for(pRow = eqp_next_row(p, iEqpId, 0); pRow; pRow = pNext){ pNext = eqp_next_row(p, iEqpId, pRow); z = pRow->zText; utf8_printf(p->out, "%s%s%s\n", p->sGraph.zPrefix, pNext ? "|--" : "`--", z); - if( n<(int)sizeof(p->sGraph.zPrefix)-7 ){ + if( n<(i64)sizeof(p->sGraph.zPrefix)-7 ){ memcpy(&p->sGraph.zPrefix[n], pNext ? "| " : " ", 4); eqp_render_level(p, pRow->iEqpId); p->sGraph.zPrefix[n] = 0; @@ -13099,7 +17347,7 @@ static void eqp_render_level(ShellState *p, int iEqpId){ /* ** Display and reset the EXPLAIN QUERY PLAN data */ -static void eqp_render(ShellState *p){ +static void eqp_render(ShellState *p, i64 nCycle){ EQPGraphRow *pRow = p->sGraph.pRow; if( pRow ){ if( pRow->zText[0]=='-' ){ @@ -13110,6 +17358,8 @@ static void eqp_render(ShellState *p){ utf8_printf(p->out, "%s\n", pRow->zText+3); p->sGraph.pRow = pRow->pNext; sqlite3_free(pRow); + }else if( nCycle>0 ){ + utf8_printf(p->out, "QUERY PLAN (cycles=%lld [100%%])\n", nCycle); }else{ utf8_printf(p->out, "QUERY PLAN\n"); } @@ -13674,6 +17924,7 @@ static char *shell_error_context(const char *zSql, sqlite3 *db){ if( db==0 || zSql==0 || (iOffset = sqlite3_error_offset(db))<0 + || iOffset>=strlen(zSql) ){ return sqlite3_mprintf(""); } @@ -13688,11 +17939,12 @@ static char *shell_error_context(const char *zSql, sqlite3 *db){ while( (zSql[len]&0xc0)==0x80 ) len--; } zCode = sqlite3_mprintf("%.*s", len, zSql); + shell_check_oom(zCode); for(i=0; zCode[i]; i++){ if( IsSpace(zSql[i]) ) zCode[i] = ' '; } if( iOffset<25 ){ - zMsg = sqlite3_mprintf("\n %z\n %*s^--- error here", zCode, iOffset, ""); + zMsg = sqlite3_mprintf("\n %z\n %*s^--- error here", zCode,iOffset,""); }else{ - zMsg = sqlite3_mprintf("\n %z\n %*serror here ---^", zCode, iOffset-14, ""); + zMsg = sqlite3_mprintf("\n %z\n %*serror here ---^", zCode,iOffset-14,""); } return zMsg; } @@ -13804,7 +18056,7 @@ static void displayLinuxIoStats(FILE *out){ int i; for(i=0; i<ArraySize(aTrans); i++){ int n = strlen30(aTrans[i].zPattern); - if( strncmp(aTrans[i].zPattern, z, n)==0 ){ + if( cli_strncmp(aTrans[i].zPattern, z, n)==0 ){ utf8_printf(out, "%-36s %s", aTrans[i].zDesc, &z[n]); break; } @@ -13880,7 +18132,7 @@ static int display_stats( if( pArg->statsOn==3 ){ if( pArg->pStmt ){ - iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_VM_STEP, bReset); + iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_VM_STEP,bReset); raw_printf(pArg->out, "VM-steps: %d\n", iCur); } return 0; @@ -13961,8 +18213,10 @@ static int display_stats( raw_printf(pArg->out, "Sort Operations: %d\n", iCur); iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_AUTOINDEX,bReset); raw_printf(pArg->out, "Autoindex Inserts: %d\n", iCur); - iHit = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_FILTER_HIT, bReset); - iMiss = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_FILTER_MISS, bReset); + iHit = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_FILTER_HIT, + bReset); + iMiss = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_FILTER_MISS, + bReset); if( iHit || iMiss ){ raw_printf(pArg->out, "Bloom filter bypass taken: %d/%d\n", iHit, iHit+iMiss); @@ -13986,6 +18240,35 @@ static int display_stats( return 0; } + +#ifdef SQLITE_ENABLE_STMT_SCANSTATUS +static int scanStatsHeight(sqlite3_stmt *p, int iEntry){ + int iPid = 0; + int ret = 1; + sqlite3_stmt_scanstatus_v2(p, iEntry, + SQLITE_SCANSTAT_SELECTID, SQLITE_SCANSTAT_COMPLEX, (void*)&iPid + ); + while( iPid!=0 ){ + int ii; + for(ii=0; 1; ii++){ + int iId; + int res; + res = sqlite3_stmt_scanstatus_v2(p, ii, + SQLITE_SCANSTAT_SELECTID, SQLITE_SCANSTAT_COMPLEX, (void*)&iId + ); + if( res ) break; + if( iId==iPid ){ + sqlite3_stmt_scanstatus_v2(p, ii, + SQLITE_SCANSTAT_PARENTID, SQLITE_SCANSTAT_COMPLEX, (void*)&iPid + ); + } + } + ret++; + } + return ret; +} +#endif + /* ** Display scan stats. */ @@ -13997,40 +18280,77 @@ static void display_scanstats( UNUSED_PARAMETER(db); UNUSED_PARAMETER(pArg); #else - int i, k, n, mx; - raw_printf(pArg->out, "-------- scanstats --------\n"); - mx = 0; - for(k=0; k<=mx; k++){ - double rEstLoop = 1.0; - for(i=n=0; 1; i++){ - sqlite3_stmt *p = pArg->pStmt; - sqlite3_int64 nLoop, nVisit; - double rEst; - int iSid; - const char *zExplain; - if( sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_NLOOP, (void*)&nLoop) ){ - break; + static const int f = SQLITE_SCANSTAT_COMPLEX; + sqlite3_stmt *p = pArg->pStmt; + int ii = 0; + i64 nTotal = 0; + int nWidth = 0; + eqp_reset(pArg); + + for(ii=0; 1; ii++){ + const char *z = 0; + int n = 0; + if( sqlite3_stmt_scanstatus_v2(p,ii,SQLITE_SCANSTAT_EXPLAIN,f,(void*)&z) ){ + break; + } + n = strlen(z) + scanStatsHeight(p, ii)*3; + if( n>nWidth ) nWidth = n; + } + nWidth += 4; + + sqlite3_stmt_scanstatus_v2(p, -1, SQLITE_SCANSTAT_NCYCLE, f, (void*)&nTotal); + for(ii=0; 1; ii++){ + i64 nLoop = 0; + i64 nRow = 0; + i64 nCycle = 0; + int iId = 0; + int iPid = 0; + const char *z = 0; + const char *zName = 0; + char *zText = 0; + double rEst = 0.0; + + if( sqlite3_stmt_scanstatus_v2(p,ii,SQLITE_SCANSTAT_EXPLAIN,f,(void*)&z) ){ + break; + } + sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_EST,f,(void*)&rEst); + sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_NLOOP,f,(void*)&nLoop); + sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_NVISIT,f,(void*)&nRow); + sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_NCYCLE,f,(void*)&nCycle); + sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_SELECTID,f,(void*)&iId); + sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_PARENTID,f,(void*)&iPid); + sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_NAME,f,(void*)&zName); + + zText = sqlite3_mprintf("%s", z); + if( nCycle>=0 || nLoop>=0 || nRow>=0 ){ + char *z = 0; + if( nCycle>=0 && nTotal>0 ){ + z = sqlite3_mprintf("%zcycles=%lld [%d%%]", z, + nCycle, ((nCycle*100)+nTotal/2) / nTotal + ); } - sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_SELECTID, (void*)&iSid); - if( iSid>mx ) mx = iSid; - if( iSid!=k ) continue; - if( n==0 ){ - rEstLoop = (double)nLoop; - if( k>0 ) raw_printf(pArg->out, "-------- subquery %d -------\n", k); + if( nLoop>=0 ){ + z = sqlite3_mprintf("%z%sloops=%lld", z, z ? " " : "", nLoop); } - n++; - sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_NVISIT, (void*)&nVisit); - sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_EST, (void*)&rEst); - sqlite3_stmt_scanstatus(p, i, SQLITE_SCANSTAT_EXPLAIN, (void*)&zExplain); - utf8_printf(pArg->out, "Loop %2d: %s\n", n, zExplain); - rEstLoop *= rEst; - raw_printf(pArg->out, - " nLoop=%-8lld nRow=%-8lld estRow=%-8lld estRow/Loop=%-8g\n", - nLoop, nVisit, (sqlite3_int64)(rEstLoop+0.5), rEst + if( nRow>=0 ){ + z = sqlite3_mprintf("%z%srows=%lld", z, z ? " " : "", nRow); + } + + if( zName && pArg->scanstatsOn>1 ){ + double rpl = (double)nRow / (double)nLoop; + z = sqlite3_mprintf("%z rpl=%.1f est=%.1f", z, rpl, rEst); + } + + zText = sqlite3_mprintf( + "% *z (%z)", -1*(nWidth-scanStatsHeight(p, ii)*3), zText, z ); } + + eqp_append(pArg, iId, iPid, zText); + sqlite3_free(zText); } - raw_printf(pArg->out, "---------------------------\n"); + + eqp_render(pArg, nTotal); #endif } @@ -14043,7 +18363,7 @@ static void display_scanstats( static int str_in_array(const char *zStr, const char **azArray){ int i; for(i=0; azArray[i]; i++){ - if( 0==strcmp(zStr, azArray[i]) ) return 1; + if( 0==cli_strcmp(zStr, azArray[i]) ) return 1; } return 0; } @@ -14118,7 +18438,7 @@ static void explain_data_prepare(ShellState *p, sqlite3_stmt *pSql){ "addr", "opcode", "p1", "p2", "p3", "p4", "p5", "comment" }; int jj; for(jj=0; jj<ArraySize(explainCols); jj++){ - if( strcmp(sqlite3_column_name(pSql,jj),explainCols[jj])!=0 ){ + if( cli_strcmp(sqlite3_column_name(pSql,jj),explainCols[jj])!=0 ){ p->cMode = p->mode; sqlite3_reset(pSql); return; @@ -14270,7 +18590,7 @@ static void bind_prepared_stmt(ShellState *pArg, sqlite3_stmt *pStmt){ ** characters */ static void print_box_line(FILE *out, int N){ - const char zDash[] = + const char zDash[] = BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24; const int nDash = sizeof(zDash) - 1; @@ -14399,7 +18719,7 @@ static char *translateForDisplayAndDup( break; } zOut[j] = 0; - return (char*)zOut; + return (char*)zOut; } /* Extract the value of the i-th current column for pStmt as an SQL literal @@ -14760,8 +19080,8 @@ static void exec_prepared_stmt( ** caller to eventually free this buffer using sqlite3_free(). */ static int expertHandleSQL( - ShellState *pState, - const char *zSql, + ShellState *pState, + const char *zSql, char **pzErr ){ assert( pState->expert.pExpert ); @@ -14771,7 +19091,7 @@ static int expertHandleSQL( /* ** This function is called either to silently clean up the object -** created by the ".expert" command (if bCancel==1), or to generate a +** created by the ".expert" command (if bCancel==1), or to generate a ** report from it and then clean it up (if bCancel==0). ** ** If successful, SQLITE_OK is returned. Otherwise, an SQLite error @@ -14842,10 +19162,10 @@ static int expertDotCommand( int n; if( z[0]=='-' && z[1]=='-' ) z++; n = strlen30(z); - if( n>=2 && 0==strncmp(z, "-verbose", n) ){ + if( n>=2 && 0==cli_strncmp(z, "-verbose", n) ){ pState->expert.bVerbose = 1; } - else if( n>=2 && 0==strncmp(z, "-sample", n) ){ + else if( n>=2 && 0==cli_strncmp(z, "-sample", n) ){ if( i==(nArg-1) ){ raw_printf(stderr, "option requires an argument: %s\n", z); rc = SQLITE_ERROR; @@ -14866,7 +19186,8 @@ static int expertDotCommand( if( rc==SQLITE_OK ){ pState->expert.pExpert = sqlite3_expert_new(pState->db, &zErr); if( pState->expert.pExpert==0 ){ - raw_printf(stderr, "sqlite3_expert_new: %s\n", zErr ? zErr : "out of memory"); + raw_printf(stderr, "sqlite3_expert_new: %s\n", + zErr ? zErr : "out of memory"); rc = SQLITE_ERROR; }else{ sqlite3_expert_config( @@ -14954,10 +19275,10 @@ static int shell_exec( int iEqpId = sqlite3_column_int(pExplain, 0); int iParentId = sqlite3_column_int(pExplain, 1); if( zEQPLine==0 ) zEQPLine = ""; - if( zEQPLine[0]=='-' ) eqp_render(pArg); + if( zEQPLine[0]=='-' ) eqp_render(pArg, 0); eqp_append(pArg, iEqpId, iParentId, zEQPLine); } - eqp_render(pArg); + eqp_render(pArg, 0); } sqlite3_finalize(pExplain); sqlite3_free(zEQP); @@ -15006,7 +19327,7 @@ static int shell_exec( bind_prepared_stmt(pArg, pStmt); exec_prepared_stmt(pArg, pStmt); explain_data_delete(pArg); - eqp_render(pArg); + eqp_render(pArg, 0); /* print usage stats if stats on */ if( pArg && pArg->statsOn ){ @@ -15193,18 +19514,20 @@ static int dump_callback(void *pArg, int nArg, char **azArg, char **azNotUsed){ zTable = azArg[0]; zType = azArg[1]; zSql = azArg[2]; + if( zTable==0 ) return 0; + if( zType==0 ) return 0; dataOnly = (p->shellFlgs & SHFLG_DumpDataOnly)!=0; noSys = (p->shellFlgs & SHFLG_DumpNoSys)!=0; - if( strcmp(zTable, "sqlite_sequence")==0 && !noSys ){ + if( cli_strcmp(zTable, "sqlite_sequence")==0 && !noSys ){ if( !dataOnly ) raw_printf(p->out, "DELETE FROM sqlite_sequence;\n"); }else if( sqlite3_strglob("sqlite_stat?", zTable)==0 && !noSys ){ if( !dataOnly ) raw_printf(p->out, "ANALYZE sqlite_schema;\n"); - }else if( strncmp(zTable, "sqlite_", 7)==0 ){ + }else if( cli_strncmp(zTable, "sqlite_", 7)==0 ){ return 0; }else if( dataOnly ){ /* no-op */ - }else if( strncmp(zSql, "CREATE VIRTUAL TABLE", 20)==0 ){ + }else if( cli_strncmp(zSql, "CREATE VIRTUAL TABLE", 20)==0 ){ char *zIns; if( !p->writableSchema ){ raw_printf(p->out, "PRAGMA writable_schema=ON;\n"); @@ -15222,7 +19545,7 @@ static int dump_callback(void *pArg, int nArg, char **azArg, char **azNotUsed){ printSchemaLine(p->out, zSql, ";\n"); } - if( strcmp(zType, "table")==0 ){ + if( cli_strcmp(zType, "table")==0 ){ ShellText sSelect; ShellText sTable; char **azCol; @@ -15340,7 +19663,7 @@ static int run_schema_dump_query( */ static const char *(azHelp[]) = { #if defined(SQLITE_HAVE_ZLIB) && !defined(SQLITE_OMIT_VIRTUALTABLE) \ - && !defined(SQLITE_SHELL_WASM_MODE) + && !defined(SQLITE_SHELL_FIDDLE) ".archive ... Manage SQL archives", " Each command must have exactly one of the following options:", " -c, --create Create a new archive", @@ -15366,7 +19689,7 @@ static const char *(azHelp[]) = { #ifndef SQLITE_OMIT_AUTHORIZATION ".auth ON|OFF Show authorizer callbacks", #endif -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE ".backup ?DB? FILE Backup DB (default \"main\") to FILE", " Options:", " --append Use the appendvfs", @@ -15374,18 +19697,18 @@ static const char *(azHelp[]) = { #endif ".bail on|off Stop after hitting an error. Default OFF", ".binary on|off Turn binary output on or off. Default OFF", -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE ".cd DIRECTORY Change the working directory to DIRECTORY", #endif ".changes on|off Show number of rows changed by SQL", -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE ".check GLOB Fail if output since .testcase does not match", ".clone NEWDB Clone data into NEWDB from the existing database", #endif ".connection [close] [#] Open or close an auxiliary database connection", ".databases List names and files of attached databases", ".dbconfig ?op? ?val? List or change sqlite3_db_config() options", -#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_ENABLE_DBPAGE_VTAB) +#if SQLITE_SHELL_HAVE_RECOVER ".dbinfo ?DB? Show status information about the database", #endif ".dump ?OBJECTS? Render database content as SQL", @@ -15404,11 +19727,11 @@ static const char *(azHelp[]) = { " trace Like \"full\" but enable \"PRAGMA vdbe_trace\"", #endif " trigger Like \"full\" but also show trigger bytecode", -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE ".excel Display the output of next command in spreadsheet", " --bom Put a UTF8 byte-order mark on intermediate file", #endif -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE ".exit ?CODE? Exit this program with return-code CODE", #endif ".expert EXPERIMENTAL. Suggest indexes for queries", @@ -15419,7 +19742,7 @@ static const char *(azHelp[]) = { ".fullschema ?--indent? Show schema and the content of sqlite_stat tables", ".headers on|off Turn display of headers on or off", ".help ?-all? ?PATTERN? Show help text for PATTERN", -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE ".import FILE TABLE Import data from FILE into TABLE", " Options:", " --ascii Use \\037 and \\036 as column and row separators", @@ -15448,10 +19771,10 @@ static const char *(azHelp[]) = { ".lint OPTIONS Report potential schema issues.", " Options:", " fkey-indexes Find missing foreign key indexes", -#if !defined(SQLITE_OMIT_LOAD_EXTENSION) && !defined(SQLITE_SHELL_WASM_MODE) +#if !defined(SQLITE_OMIT_LOAD_EXTENSION) && !defined(SQLITE_SHELL_FIDDLE) ".load FILE ?ENTRY? Load an extension library", #endif -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE ".log FILE|off Turn logging on or off. FILE can be stderr/stdout", #endif ".mode MODE ?OPTIONS? Set output mode", @@ -15466,7 +19789,7 @@ static const char *(azHelp[]) = { " line One value per line", " list Values delimited by \"|\"", " markdown Markdown table format", - " qbox Shorthand for \"box --width 60 --quote\"", + " qbox Shorthand for \"box --wrap 60 --quote\"", " quote Escape answers as for SQL", " table ASCII-art table", " tabs Tab-separated values", @@ -15478,11 +19801,11 @@ static const char *(azHelp[]) = { " --quote Quote output text as SQL literals", " --noquote Do not quote output text", " TABLE The name of SQL table used for \"insert\" mode", -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE ".nonce STRING Suspend safe mode for one command if nonce matches", #endif ".nullvalue STRING Use STRING in place of NULL values", -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE ".once ?OPTIONS? ?FILE? Output for the next SQL command only to FILE", " If FILE begins with '|' then open as a pipe", " --bom Put a UTF8 byte-order mark at the beginning", @@ -15504,7 +19827,7 @@ static const char *(azHelp[]) = { " --nofollow Do not follow symbolic links", " --readonly Open FILE readonly", " --zip FILE is a ZIP archive", -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE ".output ?FILE? Send output to FILE or stdout if FILE is omitted", " If FILE begins with '|' then open it as a pipe.", " Options:", @@ -15528,24 +19851,23 @@ static const char *(azHelp[]) = { " --reset Reset the count for each input and interrupt", #endif ".prompt MAIN CONTINUE Replace the standard prompts", -#ifndef SQLITE_SHELL_WASM_MODE - ".quit Exit this program", +#ifndef SQLITE_SHELL_FIDDLE + ".quit Stop interpreting input stream, exit if primary.", ".read FILE Read input from FILE or command output", " If FILE begins with \"|\", it is a command that generates the input.", #endif -#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_ENABLE_DBPAGE_VTAB) +#if SQLITE_SHELL_HAVE_RECOVER ".recover Recover as much data as possible from corrupt db.", - " --freelist-corrupt Assume the freelist is corrupt", - " --recovery-db NAME Store recovery metadata in database file NAME", + " --ignore-freelist Ignore pages that appear to be on db freelist", " --lost-and-found TABLE Alternative name for the lost-and-found table", " --no-rowids Do not attempt to recover rowid values", " that are not also INTEGER PRIMARY KEYs", #endif -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE ".restore ?DB? FILE Restore content of DB (default \"main\") from FILE", ".save ?OPTIONS? FILE Write database to FILE (an alias for .backup ...)", #endif - ".scanstats on|off Turn sqlite3_stmt_scanstatus() metrics on or off", + ".scanstats on|off|est Turn sqlite3_stmt_scanstatus() metrics on or off", ".schema ?PATTERN? Show the CREATE statements matching PATTERN", " Options:", " --indent Try to pretty-print the schema", @@ -15578,7 +19900,7 @@ static const char *(azHelp[]) = { " --sha3-384 Use the sha3-384 algorithm", " --sha3-512 Use the sha3-512 algorithm", " Any other argument is a LIKE pattern for tables to hash", -#if !defined(SQLITE_NOHAVE_SYSTEM) && !defined(SQLITE_SHELL_WASM_MODE) +#if !defined(SQLITE_NOHAVE_SYSTEM) && !defined(SQLITE_SHELL_FIDDLE) ".shell CMD ARGS... Run CMD ARGS... in a system shell", #endif ".show Show the current values for various settings", @@ -15587,11 +19909,11 @@ static const char *(azHelp[]) = { " on Turn on automatic stat display", " stmt Show statement stats", " vmstep Show the virtual machine step count only", -#if !defined(SQLITE_NOHAVE_SYSTEM) && !defined(SQLITE_SHELL_WASM_MODE) +#if !defined(SQLITE_NOHAVE_SYSTEM) && !defined(SQLITE_SHELL_FIDDLE) ".system CMD ARGS... Run CMD ARGS... in a system shell", #endif ".tables ?TABLE? List names of tables matching LIKE pattern TABLE", -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE ".testcase NAME Begin redirecting output to 'testcase-out.txt'", #endif ".testctrl CMD ... Run various sqlite3_test_control() operations", @@ -15618,6 +19940,7 @@ static const char *(azHelp[]) = { ".unmodule NAME ... Unregister virtual table modules", " --allexcept Unregister everything except those named", #endif + ".version Show source, library and compiler versions", ".vfsinfo ?AUX? Information about the top-level VFS", ".vfslist List all available VFSes", ".vfsname ?AUX? Print the name of the VFS stack", @@ -15641,9 +19964,9 @@ static int showHelp(FILE *out, const char *zPattern){ char *zPat; if( zPattern==0 || zPattern[0]=='0' - || strcmp(zPattern,"-a")==0 - || strcmp(zPattern,"-all")==0 - || strcmp(zPattern,"--all")==0 + || cli_strcmp(zPattern,"-a")==0 + || cli_strcmp(zPattern,"-all")==0 + || cli_strcmp(zPattern,"--all")==0 ){ /* Show all commands, but only one line per command */ if( zPattern==0 ) zPattern = ""; @@ -15826,7 +20149,7 @@ int deduceDatabaseType(const char *zName, int dfltZip){ } } fclose(f); - return rc; + return rc; } #ifndef SQLITE_OMIT_DESERIALIZE @@ -15880,7 +20203,7 @@ static unsigned char *readHexDb(ShellState *p, int *pnData){ iOffset = k; continue; } - if( strncmp(zLine, "| end ", 6)==0 ){ + if( cli_strncmp(zLine, "| end ", 6)==0 ){ break; } rc = sscanf(zLine,"| %d: %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x", @@ -15908,7 +20231,7 @@ readHexDb_error: }else{ while( fgets(zLine, sizeof(zLine), p->in)!=0 ){ nLine++; - if(strncmp(zLine, "| end ", 6)==0 ) break; + if(cli_strncmp(zLine, "| end ", 6)==0 ) break; } p->lineno = nLine; } @@ -15925,8 +20248,8 @@ readHexDb_error: ** offset (4*<arg2>) of the blob. */ static void shellInt32( - sqlite3_context *context, - int argc, + sqlite3_context *context, + int argc, sqlite3_value **argv ){ const unsigned char *pBlob; @@ -15953,8 +20276,8 @@ static void shellInt32( ** using "..." with internal double-quote characters doubled. */ static void shellIdQuote( - sqlite3_context *context, - int argc, + sqlite3_context *context, + int argc, sqlite3_value **argv ){ const char *zName = (const char*)sqlite3_value_text(argv[0]); @@ -15969,8 +20292,8 @@ static void shellIdQuote( ** Scalar function "usleep(X)" invokes sqlite3_sleep(X) and returns X. */ static void shellUSleepFunc( - sqlite3_context *context, - int argcUnused, + sqlite3_context *context, + int argcUnused, sqlite3_value **argv ){ int sleep = sqlite3_value_int(argv[0]); @@ -15982,7 +20305,7 @@ static void shellUSleepFunc( /* ** Scalar function "shell_escape_crnl" used by the .recover command. ** The argument passed to this function is the output of built-in -** function quote(). If the first character of the input is "'", +** function quote(). If the first character of the input is "'", ** indicating that the value passed to quote() was a text value, ** then this function searches the input for "\n" and "\r" characters ** and adds a wrapper similar to the following: @@ -15993,35 +20316,35 @@ static void shellUSleepFunc( ** of the input is returned. */ static void shellEscapeCrnl( - sqlite3_context *context, - int argc, + sqlite3_context *context, + int argc, sqlite3_value **argv ){ const char *zText = (const char*)sqlite3_value_text(argv[0]); UNUSED_PARAMETER(argc); if( zText && zText[0]=='\'' ){ - int nText = sqlite3_value_bytes(argv[0]); - int i; + i64 nText = sqlite3_value_bytes(argv[0]); + i64 i; char zBuf1[20]; char zBuf2[20]; const char *zNL = 0; const char *zCR = 0; - int nCR = 0; - int nNL = 0; + i64 nCR = 0; + i64 nNL = 0; for(i=0; zText[i]; i++){ if( zNL==0 && zText[i]=='\n' ){ zNL = unused_string(zText, "\\n", "\\012", zBuf1); - nNL = (int)strlen(zNL); + nNL = strlen(zNL); } if( zCR==0 && zText[i]=='\r' ){ zCR = unused_string(zText, "\\r", "\\015", zBuf2); - nCR = (int)strlen(zCR); + nCR = strlen(zCR); } } if( zNL || zCR ){ - int iOut = 0; + i64 iOut = 0; i64 nMax = (nNL > nCR) ? nNL : nCR; i64 nAlloc = nMax * nText + (nMax+64)*2; char *zOut = (char*)sqlite3_malloc64(nAlloc); @@ -16094,13 +20417,13 @@ static void open_db(ShellState *p, int openFlags){ if( zDbFilename==0 || zDbFilename[0]==0 ){ p->openMode = SHELL_OPEN_NORMAL; }else{ - p->openMode = (u8)deduceDatabaseType(zDbFilename, + p->openMode = (u8)deduceDatabaseType(zDbFilename, (openFlags & OPEN_DB_ZIPFILE)!=0); } } switch( p->openMode ){ case SHELL_OPEN_APPENDVFS: { - sqlite3_open_v2(zDbFilename, &p->db, + sqlite3_open_v2(zDbFilename, &p->db, SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|p->openFlags, "apndvfs"); break; } @@ -16135,28 +20458,56 @@ static void open_db(ShellState *p, int openFlags){ } exit(1); } + #ifndef SQLITE_OMIT_LOAD_EXTENSION sqlite3_enable_load_extension(p->db, 1); #endif sqlite3_shathree_init(p->db, 0, 0); sqlite3_uint_init(p->db, 0, 0); sqlite3_decimal_init(p->db, 0, 0); + sqlite3_base64_init(p->db, 0, 0); + sqlite3_base85_init(p->db, 0, 0); sqlite3_regexp_init(p->db, 0, 0); sqlite3_ieee_init(p->db, 0, 0); sqlite3_series_init(p->db, 0, 0); -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE sqlite3_fileio_init(p->db, 0, 0); sqlite3_completion_init(p->db, 0, 0); #endif -#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_ENABLE_DBPAGE_VTAB) - sqlite3_dbdata_init(p->db, 0, 0); -#endif #ifdef SQLITE_HAVE_ZLIB if( !p->bSafeModePersist ){ sqlite3_zipfile_init(p->db, 0, 0); sqlite3_sqlar_init(p->db, 0, 0); } #endif +#ifdef SQLITE_SHELL_EXTFUNCS + /* Create a preprocessing mechanism for extensions to make + * their own provisions for being built into the shell. + * This is a short-span macro. See further below for usage. + */ +#define SHELL_SUB_MACRO(base, variant) base ## _ ## variant +#define SHELL_SUBMACRO(base, variant) SHELL_SUB_MACRO(base, variant) + /* Let custom-included extensions get their ..._init() called. + * The WHATEVER_INIT( db, pzErrorMsg, pApi ) macro should cause + * the extension's sqlite3_*_init( db, pzErrorMsg, pApi ) + * inititialization routine to be called. + */ + { + int irc = SHELL_SUBMACRO(SQLITE_SHELL_EXTFUNCS, INIT)(p->db); + /* Let custom-included extensions expose their functionality. + * The WHATEVER_EXPOSE( db, pzErrorMsg ) macro should cause + * the SQL functions, virtual tables, collating sequences or + * VFS's implemented by the extension to be registered. + */ + if( irc==SQLITE_OK + || irc==SQLITE_OK_LOAD_PERMANENTLY ){ + SHELL_SUBMACRO(SQLITE_SHELL_EXTFUNCS, EXPOSE)(p->db, 0); + } +#undef SHELL_SUB_MACRO +#undef SHELL_SUBMACRO + } +#endif + sqlite3_create_function(p->db, "shell_add_schema", 3, SQLITE_UTF8, 0, shellAddSchemaName, 0, 0); sqlite3_create_function(p->db, "shell_module_schema", 1, SQLITE_UTF8, 0, @@ -16177,6 +20528,7 @@ static void open_db(ShellState *p, int openFlags){ sqlite3_create_function(p->db, "edit", 2, SQLITE_UTF8, 0, editFunc, 0, 0); #endif + if( p->openMode==SHELL_OPEN_ZIPFILE ){ char *zSql = sqlite3_mprintf( "CREATE VIRTUAL TABLE zip USING zipfile(%Q);", zDbFilename); @@ -16223,7 +20575,7 @@ void close_db(sqlite3 *db){ if( rc ){ utf8_printf(stderr, "Error: sqlite3_close() returns %d: %s\n", rc, sqlite3_errmsg(db)); - } + } } #if HAVE_READLINE || HAVE_EDITLINE @@ -16253,6 +20605,8 @@ static char *readline_completion_generator(const char *text, int state){ return zRet; } static char **readline_completion(const char *zText, int iStart, int iEnd){ + (void)iStart; + (void)iEnd; rl_attempted_completion_over = 1; return rl_completion_matches(zText, readline_completion_generator); } @@ -16262,13 +20616,13 @@ static char **readline_completion(const char *zText, int iStart, int iEnd){ ** Linenoise completion callback */ static void linenoise_completion(const char *zLine, linenoiseCompletions *lc){ - int nLine = strlen30(zLine); - int i, iStart; + i64 nLine = strlen(zLine); + i64 i, iStart; sqlite3_stmt *pStmt = 0; char *zSql; char zBuf[1000]; - if( nLine>sizeof(zBuf)-30 ) return; + if( nLine>(i64)sizeof(zBuf)-30 ) return; if( zLine[0]=='.' || zLine[0]=='#') return; for(i=nLine-1; i>=0 && (isalnum(zLine[i]) || zLine[i]=='_'); i--){} if( i==nLine-1 ) return; @@ -16284,7 +20638,7 @@ static void linenoise_completion(const char *zLine, linenoiseCompletions *lc){ while( sqlite3_step(pStmt)==SQLITE_ROW ){ const char *zCompletion = (const char*)sqlite3_column_text(pStmt, 0); int nCompletion = sqlite3_column_bytes(pStmt, 0); - if( iStart+nCompletion < sizeof(zBuf)-1 && zCompletion ){ + if( iStart+nCompletion < (i64)sizeof(zBuf)-1 && zCompletion ){ memcpy(zBuf+iStart, zCompletion, nCompletion+1); linenoiseAddCompletion(lc, zBuf); } @@ -16401,11 +20755,11 @@ static void output_file_close(FILE *f){ */ static FILE *output_file_open(const char *zFile, int bTextMode){ FILE *f; - if( strcmp(zFile,"stdout")==0 ){ + if( cli_strcmp(zFile,"stdout")==0 ){ f = stdout; - }else if( strcmp(zFile, "stderr")==0 ){ + }else if( cli_strcmp(zFile, "stderr")==0 ){ f = stderr; - }else if( strcmp(zFile, "off")==0 ){ + }else if( cli_strcmp(zFile, "off")==0 ){ f = 0; }else{ f = fopen(zFile, bTextMode ? "w" : "wb"); @@ -16429,7 +20783,7 @@ static int sql_trace_callback( ShellState *p = (ShellState*)pArg; sqlite3_stmt *pStmt; const char *zSql; - int nSql; + i64 nSql; if( p->traceOut==0 ) return 0; if( mType==SQLITE_TRACE_CLOSE ){ utf8_printf(p->traceOut, "-- closing database connection\n"); @@ -16457,17 +20811,18 @@ static int sql_trace_callback( } } if( zSql==0 ) return 0; - nSql = strlen30(zSql); + nSql = strlen(zSql); + if( nSql>1000000000 ) nSql = 1000000000; while( nSql>0 && zSql[nSql-1]==';' ){ nSql--; } switch( mType ){ case SQLITE_TRACE_ROW: case SQLITE_TRACE_STMT: { - utf8_printf(p->traceOut, "%.*s;\n", nSql, zSql); + utf8_printf(p->traceOut, "%.*s;\n", (int)nSql, zSql); break; } case SQLITE_TRACE_PROFILE: { sqlite3_int64 nNanosec = *(sqlite3_int64*)pX; - utf8_printf(p->traceOut, "%.*s; -- %lld ns\n", nSql, zSql, nNanosec); + utf8_printf(p->traceOut, "%.*s; -- %lld ns\n", (int)nSql, zSql, nNanosec); break; } } @@ -16478,10 +20833,13 @@ static int sql_trace_callback( /* ** A no-op routine that runs with the ".breakpoint" doc-command. This is ** a useful spot to set a debugger breakpoint. +** +** This routine does not do anything practical. The code are there simply +** to prevent the compiler from optimizing this routine out. */ static void test_breakpoint(void){ - static int nCall = 0; - nCall++; + static unsigned int nCall = 0; + if( (nCall++)==0xffffffff ) printf("Many .breakpoints have run\n"); } /* @@ -16780,7 +21138,7 @@ static void tryToCloneSchema( char *zErrMsg = 0; zQuery = sqlite3_mprintf("SELECT name, sql FROM sqlite_schema" - " WHERE %s", zWhere); + " WHERE %s ORDER BY rowid ASC", zWhere); shell_check_oom(zQuery); rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0); if( rc ){ @@ -16793,12 +21151,14 @@ static void tryToCloneSchema( zName = sqlite3_column_text(pQuery, 0); zSql = sqlite3_column_text(pQuery, 1); if( zName==0 || zSql==0 ) continue; - printf("%s... ", zName); fflush(stdout); - sqlite3_exec(newDb, (const char*)zSql, 0, 0, &zErrMsg); - if( zErrMsg ){ - utf8_printf(stderr, "Error: %s\nSQL: [%s]\n", zErrMsg, zSql); - sqlite3_free(zErrMsg); - zErrMsg = 0; + if( sqlite3_stricmp((char*)zName, "sqlite_sequence")!=0 ){ + printf("%s... ", zName); fflush(stdout); + sqlite3_exec(newDb, (const char*)zSql, 0, 0, &zErrMsg); + if( zErrMsg ){ + utf8_printf(stderr, "Error: %s\nSQL: [%s]\n", zErrMsg, zSql); + sqlite3_free(zErrMsg); + zErrMsg = 0; + } } if( xForEach ){ xForEach(p, newDb, (const char*)zName); @@ -16822,6 +21182,7 @@ static void tryToCloneSchema( zName = sqlite3_column_text(pQuery, 0); zSql = sqlite3_column_text(pQuery, 1); if( zName==0 || zSql==0 ) continue; + if( sqlite3_stricmp((char*)zName, "sqlite_sequence")!=0 ) continue; printf("%s... ", zName); fflush(stdout); sqlite3_exec(newDb, (const char*)zSql, 0, 0, &zErrMsg); if( zErrMsg ){ @@ -16925,7 +21286,7 @@ static int db_int(sqlite3 *db, const char *zSql){ return res; } -#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_ENABLE_DBPAGE_VTAB) +#if defined(SQLITE_SHELL_HAVE_RECOVER) /* ** Convert a 2-byte or 4-byte big-endian integer into a native integer */ @@ -17016,7 +21377,7 @@ static int shell_dbinfo_command(ShellState *p, int nArg, char **azArg){ } if( zDb==0 ){ zSchemaTab = sqlite3_mprintf("main.sqlite_schema"); - }else if( strcmp(zDb,"temp")==0 ){ + }else if( cli_strcmp(zDb,"temp")==0 ){ zSchemaTab = sqlite3_mprintf("%s", "sqlite_temp_schema"); }else{ zSchemaTab = sqlite3_mprintf("\"%w\".sqlite_schema", zDb); @@ -17032,8 +21393,7 @@ static int shell_dbinfo_command(ShellState *p, int nArg, char **azArg){ utf8_printf(p->out, "%-20s %u\n", "data version", iDataVersion); return 0; } -#endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) - && defined(SQLITE_ENABLE_DBPAGE_VTAB) */ +#endif /* SQLITE_SHELL_HAVE_RECOVER */ /* ** Print the current sqlite3_errmsg() value to stderr and return 1. @@ -17150,7 +21510,7 @@ static int optionMatch(const char *zStr, const char *zOpt){ if( zStr[0]!='-' ) return 0; zStr++; if( zStr[0]=='-' ) zStr++; - return strcmp(zStr, zOpt)==0; + return cli_strcmp(zStr, zOpt)==0; } /* @@ -17464,16 +21824,16 @@ static int lintDotCommand( #if !defined SQLITE_OMIT_VIRTUALTABLE static void shellPrepare( - sqlite3 *db, - int *pRc, - const char *zSql, + sqlite3 *db, + int *pRc, + const char *zSql, sqlite3_stmt **ppStmt ){ *ppStmt = 0; if( *pRc==SQLITE_OK ){ int rc = sqlite3_prepare_v2(db, zSql, -1, ppStmt, 0); if( rc!=SQLITE_OK ){ - raw_printf(stderr, "sql error: %s (%d)\n", + raw_printf(stderr, "sql error: %s (%d)\n", sqlite3_errmsg(db), sqlite3_errcode(db) ); *pRc = rc; @@ -17489,10 +21849,10 @@ static void shellPrepare( ** nuisance compiler warnings about "defined but not used". */ void shellPreparePrintf( - sqlite3 *db, - int *pRc, + sqlite3 *db, + int *pRc, sqlite3_stmt **ppStmt, - const char *zFmt, + const char *zFmt, ... ){ *ppStmt = 0; @@ -17518,7 +21878,7 @@ void shellPreparePrintf( ** nuisance compiler warnings about "defined but not used". */ void shellFinalize( - int *pRc, + int *pRc, sqlite3_stmt *pStmt ){ if( pStmt ){ @@ -17540,7 +21900,7 @@ void shellFinalize( ** nuisance compiler warnings about "defined but not used". */ void shellReset( - int *pRc, + int *pRc, sqlite3_stmt *pStmt ){ int rc = sqlite3_reset(pStmt); @@ -17588,7 +21948,7 @@ static int arUsage(FILE *f){ } /* -** Print an error message for the .ar command to stderr and return +** Print an error message for the .ar command to stderr and return ** SQLITE_ERROR. */ static int arErrorMsg(ArCommand *pAr, const char *zFmt, ...){ @@ -17654,7 +22014,7 @@ static int arProcessSwitch(ArCommand *pAr, int eSwitch, const char *zArg){ break; case AR_SWITCH_APPEND: pAr->bAppend = 1; - /* Fall thru into --file */ + deliberate_fall_through; case AR_SWITCH_FILE: pAr->zFile = zArg; break; @@ -17669,7 +22029,7 @@ static int arProcessSwitch(ArCommand *pAr, int eSwitch, const char *zArg){ /* ** Parse the command line for an ".ar" command. The results are written into ** structure (*pAr). SQLITE_OK is returned if the command line is parsed -** successfully, otherwise an error message is written to stderr and +** successfully, otherwise an error message is written to stderr and ** SQLITE_ERROR returned. */ static int arParseCommand( @@ -17865,7 +22225,7 @@ static int arCheckEntries(ArCommand *pAr){ ** when pAr->bGlob is false and GLOB match when pAr->bGlob is true. */ static void arWhereClause( - int *pRc, + int *pRc, ArCommand *pAr, char **pzWhere /* OUT: New WHERE clause */ ){ @@ -17880,7 +22240,7 @@ static void arWhereClause( for(i=0; i<pAr->nArg; i++){ const char *z = pAr->azArg[i]; zWhere = sqlite3_mprintf( - "%z%s name %s '%q' OR substr(name,1,%d) %s '%q/'", + "%z%s name %s '%q' OR substr(name,1,%d) %s '%q/'", zWhere, zSep, zSameOp, z, strlen30(z)+1, zSameOp, z ); if( zWhere==0 ){ @@ -17895,10 +22255,10 @@ static void arWhereClause( } /* -** Implementation of .ar "lisT" command. +** Implementation of .ar "lisT" command. */ static int arListCommand(ArCommand *pAr){ - const char *zSql = "SELECT %s FROM %s WHERE %s"; + const char *zSql = "SELECT %s FROM %s WHERE %s"; const char *azCols[] = { "name", "lsmode(mode), sz, datetime(mtime, 'unixepoch'), name" @@ -17920,7 +22280,7 @@ static int arListCommand(ArCommand *pAr){ if( pAr->bVerbose ){ utf8_printf(pAr->p->out, "%s % 10d %s %s\n", sqlite3_column_text(pSql, 0), - sqlite3_column_int(pSql, 1), + sqlite3_column_int(pSql, 1), sqlite3_column_text(pSql, 2), sqlite3_column_text(pSql, 3) ); @@ -17977,17 +22337,17 @@ static int arRemoveCommand(ArCommand *pAr){ } /* -** Implementation of .ar "eXtract" command. +** Implementation of .ar "eXtract" command. */ static int arExtractCommand(ArCommand *pAr){ - const char *zSql1 = + const char *zSql1 = "SELECT " " ($dir || name)," " writefile(($dir || name), %s, mode, mtime) " "FROM %s WHERE (%s) AND (data IS NULL OR $dirOnly = 0)" " AND name NOT GLOB '*..[/\\]*'"; - const char *azExtraArg[] = { + const char *azExtraArg[] = { "sqlar_uncompress(data, sz)", "data" }; @@ -18013,7 +22373,7 @@ static int arExtractCommand(ArCommand *pAr){ if( zDir==0 ) rc = SQLITE_NOMEM; } - shellPreparePrintf(pAr->db, &rc, &pSql, zSql1, + shellPreparePrintf(pAr->db, &rc, &pSql, zSql1, azExtraArg[pAr->bZip], pAr->zSrcTable, zWhere ); @@ -18091,7 +22451,7 @@ static int arCreateOrUpdateCommand( int bUpdate, /* true for a --create. */ int bOnlyIfChanged /* Only update if file has changed */ ){ - const char *zCreate = + const char *zCreate = "CREATE TABLE IF NOT EXISTS sqlar(\n" " name TEXT PRIMARY KEY, -- name of the file\n" " mode INT, -- access permissions\n" @@ -18133,7 +22493,7 @@ static int arCreateOrUpdateCommand( arExecSql(pAr, "PRAGMA page_size=512"); rc = arExecSql(pAr, "SAVEPOINT ar;"); if( rc!=SQLITE_OK ) return rc; - zTemp[0] = 0; + zTemp[0] = 0; if( pAr->bZip ){ /* Initialize the zipfile virtual table, if necessary */ if( pAr->zFile ){ @@ -18227,7 +22587,7 @@ static int arDotCommand( }else if( cmd.zFile ){ int flags; if( cmd.bAppend ) eDbType = SHELL_OPEN_APPENDVFS; - if( cmd.eCmd==AR_CMD_CREATE || cmd.eCmd==AR_CMD_INSERT + if( cmd.eCmd==AR_CMD_CREATE || cmd.eCmd==AR_CMD_INSERT || cmd.eCmd==AR_CMD_REMOVE || cmd.eCmd==AR_CMD_UPDATE ){ flags = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE; }else{ @@ -18238,10 +22598,10 @@ static int arDotCommand( utf8_printf(pState->out, "-- open database '%s'%s\n", cmd.zFile, eDbType==SHELL_OPEN_APPENDVFS ? " using 'apndvfs'" : ""); } - rc = sqlite3_open_v2(cmd.zFile, &cmd.db, flags, + rc = sqlite3_open_v2(cmd.zFile, &cmd.db, flags, eDbType==SHELL_OPEN_APPENDVFS ? "apndvfs" : 0); if( rc!=SQLITE_OK ){ - utf8_printf(stderr, "cannot open file: %s (%s)\n", + utf8_printf(stderr, "cannot open file: %s (%s)\n", cmd.zFile, sqlite3_errmsg(cmd.db) ); goto end_ar_command; @@ -18306,364 +22666,16 @@ end_ar_command: *******************************************************************************/ #endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB) */ -#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_ENABLE_DBPAGE_VTAB) -/* -** If (*pRc) is not SQLITE_OK when this function is called, it is a no-op. -** Otherwise, the SQL statement or statements in zSql are executed using -** database connection db and the error code written to *pRc before -** this function returns. -*/ -static void shellExec(sqlite3 *db, int *pRc, const char *zSql){ - int rc = *pRc; - if( rc==SQLITE_OK ){ - char *zErr = 0; - rc = sqlite3_exec(db, zSql, 0, 0, &zErr); - if( rc!=SQLITE_OK ){ - raw_printf(stderr, "SQL error: %s\n", zErr); - } - sqlite3_free(zErr); - *pRc = rc; - } -} - -/* -** Like shellExec(), except that zFmt is a printf() style format string. -*/ -static void shellExecPrintf(sqlite3 *db, int *pRc, const char *zFmt, ...){ - char *z = 0; - if( *pRc==SQLITE_OK ){ - va_list ap; - va_start(ap, zFmt); - z = sqlite3_vmprintf(zFmt, ap); - va_end(ap); - if( z==0 ){ - *pRc = SQLITE_NOMEM; - }else{ - shellExec(db, pRc, z); - } - sqlite3_free(z); - } -} - -/* -** If *pRc is not SQLITE_OK when this function is called, it is a no-op. -** Otherwise, an attempt is made to allocate, zero and return a pointer -** to a buffer nByte bytes in size. If an OOM error occurs, *pRc is set -** to SQLITE_NOMEM and NULL returned. -*/ -static void *shellMalloc(int *pRc, sqlite3_int64 nByte){ - void *pRet = 0; - if( *pRc==SQLITE_OK ){ - pRet = sqlite3_malloc64(nByte); - if( pRet==0 ){ - *pRc = SQLITE_NOMEM; - }else{ - memset(pRet, 0, nByte); - } - } - return pRet; -} +#if SQLITE_SHELL_HAVE_RECOVER /* -** If *pRc is not SQLITE_OK when this function is called, it is a no-op. -** Otherwise, zFmt is treated as a printf() style string. The result of -** formatting it along with any trailing arguments is written into a -** buffer obtained from sqlite3_malloc(), and pointer to which is returned. -** It is the responsibility of the caller to eventually free this buffer -** using a call to sqlite3_free(). -** -** If an OOM error occurs, (*pRc) is set to SQLITE_NOMEM and a NULL -** pointer returned. +** This function is used as a callback by the recover extension. Simply +** print the supplied SQL statement to stdout. */ -static char *shellMPrintf(int *pRc, const char *zFmt, ...){ - char *z = 0; - if( *pRc==SQLITE_OK ){ - va_list ap; - va_start(ap, zFmt); - z = sqlite3_vmprintf(zFmt, ap); - va_end(ap); - if( z==0 ){ - *pRc = SQLITE_NOMEM; - } - } - return z; -} - - -/* -** When running the ".recover" command, each output table, and the special -** orphaned row table if it is required, is represented by an instance -** of the following struct. -*/ -typedef struct RecoverTable RecoverTable; -struct RecoverTable { - char *zQuoted; /* Quoted version of table name */ - int nCol; /* Number of columns in table */ - char **azlCol; /* Array of column lists */ - int iPk; /* Index of IPK column */ -}; - -/* -** Free a RecoverTable object allocated by recoverFindTable() or -** recoverOrphanTable(). -*/ -static void recoverFreeTable(RecoverTable *pTab){ - if( pTab ){ - sqlite3_free(pTab->zQuoted); - if( pTab->azlCol ){ - int i; - for(i=0; i<=pTab->nCol; i++){ - sqlite3_free(pTab->azlCol[i]); - } - sqlite3_free(pTab->azlCol); - } - sqlite3_free(pTab); - } -} - -/* -** This function is a no-op if (*pRc) is not SQLITE_OK when it is called. -** Otherwise, it allocates and returns a RecoverTable object based on the -** final four arguments passed to this function. It is the responsibility -** of the caller to eventually free the returned object using -** recoverFreeTable(). -*/ -static RecoverTable *recoverNewTable( - int *pRc, /* IN/OUT: Error code */ - const char *zName, /* Name of table */ - const char *zSql, /* CREATE TABLE statement */ - int bIntkey, - int nCol -){ - sqlite3 *dbtmp = 0; /* sqlite3 handle for testing CREATE TABLE */ - int rc = *pRc; - RecoverTable *pTab = 0; - - pTab = (RecoverTable*)shellMalloc(&rc, sizeof(RecoverTable)); - if( rc==SQLITE_OK ){ - int nSqlCol = 0; - int bSqlIntkey = 0; - sqlite3_stmt *pStmt = 0; - - rc = sqlite3_open("", &dbtmp); - if( rc==SQLITE_OK ){ - sqlite3_create_function(dbtmp, "shell_idquote", 1, SQLITE_UTF8, 0, - shellIdQuote, 0, 0); - } - if( rc==SQLITE_OK ){ - rc = sqlite3_exec(dbtmp, "PRAGMA writable_schema = on", 0, 0, 0); - } - if( rc==SQLITE_OK ){ - rc = sqlite3_exec(dbtmp, zSql, 0, 0, 0); - if( rc==SQLITE_ERROR ){ - rc = SQLITE_OK; - goto finished; - } - } - shellPreparePrintf(dbtmp, &rc, &pStmt, - "SELECT count(*) FROM pragma_table_info(%Q)", zName - ); - if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){ - nSqlCol = sqlite3_column_int(pStmt, 0); - } - shellFinalize(&rc, pStmt); - - if( rc!=SQLITE_OK || nSqlCol<nCol ){ - goto finished; - } - - shellPreparePrintf(dbtmp, &rc, &pStmt, - "SELECT (" - " SELECT substr(data,1,1)==X'0D' FROM sqlite_dbpage WHERE pgno=rootpage" - ") FROM sqlite_schema WHERE name = %Q", zName - ); - if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){ - bSqlIntkey = sqlite3_column_int(pStmt, 0); - } - shellFinalize(&rc, pStmt); - - if( bIntkey==bSqlIntkey ){ - int i; - const char *zPk = "_rowid_"; - sqlite3_stmt *pPkFinder = 0; - - /* If this is an intkey table and there is an INTEGER PRIMARY KEY, - ** set zPk to the name of the PK column, and pTab->iPk to the index - ** of the column, where columns are 0-numbered from left to right. - ** Or, if this is a WITHOUT ROWID table or if there is no IPK column, - ** leave zPk as "_rowid_" and pTab->iPk at -2. */ - pTab->iPk = -2; - if( bIntkey ){ - shellPreparePrintf(dbtmp, &rc, &pPkFinder, - "SELECT cid, name FROM pragma_table_info(%Q) " - " WHERE pk=1 AND type='integer' COLLATE nocase" - " AND NOT EXISTS (SELECT cid FROM pragma_table_info(%Q) WHERE pk=2)" - , zName, zName - ); - if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pPkFinder) ){ - pTab->iPk = sqlite3_column_int(pPkFinder, 0); - zPk = (const char*)sqlite3_column_text(pPkFinder, 1); - if( zPk==0 ){ zPk = "_"; /* Defensive. Should never happen */ } - } - } - - pTab->zQuoted = shellMPrintf(&rc, "\"%w\"", zName); - pTab->azlCol = (char**)shellMalloc(&rc, sizeof(char*) * (nSqlCol+1)); - pTab->nCol = nSqlCol; - - if( bIntkey ){ - pTab->azlCol[0] = shellMPrintf(&rc, "\"%w\"", zPk); - }else{ - pTab->azlCol[0] = shellMPrintf(&rc, ""); - } - i = 1; - shellPreparePrintf(dbtmp, &rc, &pStmt, - "SELECT %Q || group_concat(shell_idquote(name), ', ') " - " FILTER (WHERE cid!=%d) OVER (ORDER BY %s cid) " - "FROM pragma_table_info(%Q)", - bIntkey ? ", " : "", pTab->iPk, - bIntkey ? "" : "(CASE WHEN pk=0 THEN 1000000 ELSE pk END), ", - zName - ); - while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){ - const char *zText = (const char*)sqlite3_column_text(pStmt, 0); - pTab->azlCol[i] = shellMPrintf(&rc, "%s%s", pTab->azlCol[0], zText); - i++; - } - shellFinalize(&rc, pStmt); - - shellFinalize(&rc, pPkFinder); - } - } - - finished: - sqlite3_close(dbtmp); - *pRc = rc; - if( rc!=SQLITE_OK || (pTab && pTab->zQuoted==0) ){ - recoverFreeTable(pTab); - pTab = 0; - } - return pTab; -} - -/* -** This function is called to search the schema recovered from the -** sqlite_schema table of the (possibly) corrupt database as part -** of a ".recover" command. Specifically, for a table with root page -** iRoot and at least nCol columns. Additionally, if bIntkey is 0, the -** table must be a WITHOUT ROWID table, or if non-zero, not one of -** those. -** -** If a table is found, a (RecoverTable*) object is returned. Or, if -** no such table is found, but bIntkey is false and iRoot is the -** root page of an index in the recovered schema, then (*pbNoop) is -** set to true and NULL returned. Or, if there is no such table or -** index, NULL is returned and (*pbNoop) set to 0, indicating that -** the caller should write data to the orphans table. -*/ -static RecoverTable *recoverFindTable( - ShellState *pState, /* Shell state object */ - int *pRc, /* IN/OUT: Error code */ - int iRoot, /* Root page of table */ - int bIntkey, /* True for an intkey table */ - int nCol, /* Number of columns in table */ - int *pbNoop /* OUT: True if iRoot is root of index */ -){ - sqlite3_stmt *pStmt = 0; - RecoverTable *pRet = 0; - int bNoop = 0; - const char *zSql = 0; - const char *zName = 0; - - /* Search the recovered schema for an object with root page iRoot. */ - shellPreparePrintf(pState->db, pRc, &pStmt, - "SELECT type, name, sql FROM recovery.schema WHERE rootpage=%d", iRoot - ); - while( *pRc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){ - const char *zType = (const char*)sqlite3_column_text(pStmt, 0); - if( bIntkey==0 && sqlite3_stricmp(zType, "index")==0 ){ - bNoop = 1; - break; - } - if( sqlite3_stricmp(zType, "table")==0 ){ - zName = (const char*)sqlite3_column_text(pStmt, 1); - zSql = (const char*)sqlite3_column_text(pStmt, 2); - if( zName!=0 && zSql!=0 ){ - pRet = recoverNewTable(pRc, zName, zSql, bIntkey, nCol); - break; - } - } - } - - shellFinalize(pRc, pStmt); - *pbNoop = bNoop; - return pRet; -} - -/* -** Return a RecoverTable object representing the orphans table. -*/ -static RecoverTable *recoverOrphanTable( - ShellState *pState, /* Shell state object */ - int *pRc, /* IN/OUT: Error code */ - const char *zLostAndFound, /* Base name for orphans table */ - int nCol /* Number of user data columns */ -){ - RecoverTable *pTab = 0; - if( nCol>=0 && *pRc==SQLITE_OK ){ - int i; - - /* This block determines the name of the orphan table. The prefered - ** name is zLostAndFound. But if that clashes with another name - ** in the recovered schema, try zLostAndFound_0, zLostAndFound_1 - ** and so on until a non-clashing name is found. */ - int iTab = 0; - char *zTab = shellMPrintf(pRc, "%s", zLostAndFound); - sqlite3_stmt *pTest = 0; - shellPrepare(pState->db, pRc, - "SELECT 1 FROM recovery.schema WHERE name=?", &pTest - ); - if( pTest ) sqlite3_bind_text(pTest, 1, zTab, -1, SQLITE_TRANSIENT); - while( *pRc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pTest) ){ - shellReset(pRc, pTest); - sqlite3_free(zTab); - zTab = shellMPrintf(pRc, "%s_%d", zLostAndFound, iTab++); - sqlite3_bind_text(pTest, 1, zTab, -1, SQLITE_TRANSIENT); - } - shellFinalize(pRc, pTest); - - pTab = (RecoverTable*)shellMalloc(pRc, sizeof(RecoverTable)); - if( pTab ){ - pTab->zQuoted = shellMPrintf(pRc, "\"%w\"", zTab); - pTab->nCol = nCol; - pTab->iPk = -2; - if( nCol>0 ){ - pTab->azlCol = (char**)shellMalloc(pRc, sizeof(char*) * (nCol+1)); - if( pTab->azlCol ){ - pTab->azlCol[nCol] = shellMPrintf(pRc, ""); - for(i=nCol-1; i>=0; i--){ - pTab->azlCol[i] = shellMPrintf(pRc, "%s, NULL", pTab->azlCol[i+1]); - } - } - } - - if( *pRc!=SQLITE_OK ){ - recoverFreeTable(pTab); - pTab = 0; - }else{ - raw_printf(pState->out, - "CREATE TABLE %s(rootpgno INTEGER, " - "pgno INTEGER, nfield INTEGER, id INTEGER", pTab->zQuoted - ); - for(i=0; i<nCol; i++){ - raw_printf(pState->out, ", c%d", i); - } - raw_printf(pState->out, ");\n"); - } - } - sqlite3_free(zTab); - } - return pTab; +static int recoverSqlCb(void *pCtx, const char *zSql){ + ShellState *pState = (ShellState*)pCtx; + utf8_printf(pState->out, "%s;\n", zSql); + return SQLITE_OK; } /* @@ -18673,318 +22685,63 @@ static RecoverTable *recoverOrphanTable( */ static int recoverDatabaseCmd(ShellState *pState, int nArg, char **azArg){ int rc = SQLITE_OK; - sqlite3_stmt *pLoop = 0; /* Loop through all root pages */ - sqlite3_stmt *pPages = 0; /* Loop through all pages in a group */ - sqlite3_stmt *pCells = 0; /* Loop through all cells in a page */ - const char *zRecoveryDb = ""; /* Name of "recovery" database */ - const char *zLostAndFound = "lost_and_found"; - int i; - int nOrphan = -1; - RecoverTable *pOrphan = 0; - - int bFreelist = 1; /* 0 if --freelist-corrupt is specified */ + const char *zRecoveryDb = ""; /* Name of "recovery" database. Debug only */ + const char *zLAF = "lost_and_found"; + int bFreelist = 1; /* 0 if --ignore-freelist is specified */ int bRowids = 1; /* 0 if --no-rowids */ + sqlite3_recover *p = 0; + int i = 0; + for(i=1; i<nArg; i++){ char *z = azArg[i]; int n; if( z[0]=='-' && z[1]=='-' ) z++; n = strlen30(z); - if( n<=17 && memcmp("-freelist-corrupt", z, n)==0 ){ + if( n<=17 && memcmp("-ignore-freelist", z, n)==0 ){ bFreelist = 0; }else if( n<=12 && memcmp("-recovery-db", z, n)==0 && i<(nArg-1) ){ + /* This option determines the name of the ATTACH-ed database used + ** internally by the recovery extension. The default is "" which + ** means to use a temporary database that is automatically deleted + ** when closed. This option is undocumented and might disappear at + ** any moment. */ i++; zRecoveryDb = azArg[i]; }else if( n<=15 && memcmp("-lost-and-found", z, n)==0 && i<(nArg-1) ){ i++; - zLostAndFound = azArg[i]; + zLAF = azArg[i]; }else if( n<=10 && memcmp("-no-rowids", z, n)==0 ){ bRowids = 0; } else{ - utf8_printf(stderr, "unexpected option: %s\n", azArg[i]); + utf8_printf(stderr, "unexpected option: %s\n", azArg[i]); showHelp(pState->out, azArg[0]); return 1; } } - shellExecPrintf(pState->db, &rc, - /* Attach an in-memory database named 'recovery'. Create an indexed - ** cache of the sqlite_dbptr virtual table. */ - "PRAGMA writable_schema = on;" - "ATTACH %Q AS recovery;" - "DROP TABLE IF EXISTS recovery.dbptr;" - "DROP TABLE IF EXISTS recovery.freelist;" - "DROP TABLE IF EXISTS recovery.map;" - "DROP TABLE IF EXISTS recovery.schema;" - "CREATE TABLE recovery.freelist(pgno INTEGER PRIMARY KEY);", zRecoveryDb + p = sqlite3_recover_init_sql( + pState->db, "main", recoverSqlCb, (void*)pState ); - if( bFreelist ){ - shellExec(pState->db, &rc, - "WITH trunk(pgno) AS (" - " SELECT shell_int32(" - " (SELECT data FROM sqlite_dbpage WHERE pgno=1), 8) AS x " - " WHERE x>0" - " UNION" - " SELECT shell_int32(" - " (SELECT data FROM sqlite_dbpage WHERE pgno=trunk.pgno), 0) AS x " - " FROM trunk WHERE x>0" - ")," - "freelist(data, n, freepgno) AS (" - " SELECT data, min(16384, shell_int32(data, 1)-1), t.pgno " - " FROM trunk t, sqlite_dbpage s WHERE s.pgno=t.pgno" - " UNION ALL" - " SELECT data, n-1, shell_int32(data, 2+n) " - " FROM freelist WHERE n>=0" - ")" - "REPLACE INTO recovery.freelist SELECT freepgno FROM freelist;" - ); - } - - /* If this is an auto-vacuum database, add all pointer-map pages to - ** the freelist table. Do this regardless of whether or not - ** --freelist-corrupt was specified. */ - shellExec(pState->db, &rc, - "WITH ptrmap(pgno) AS (" - " SELECT 2 WHERE shell_int32(" - " (SELECT data FROM sqlite_dbpage WHERE pgno=1), 13" - " )" - " UNION ALL " - " SELECT pgno+1+(SELECT page_size FROM pragma_page_size)/5 AS pp " - " FROM ptrmap WHERE pp<=(SELECT page_count FROM pragma_page_count)" - ")" - "REPLACE INTO recovery.freelist SELECT pgno FROM ptrmap" - ); + sqlite3_recover_config(p, 789, (void*)zRecoveryDb); /* Debug use only */ + sqlite3_recover_config(p, SQLITE_RECOVER_LOST_AND_FOUND, (void*)zLAF); + sqlite3_recover_config(p, SQLITE_RECOVER_ROWIDS, (void*)&bRowids); + sqlite3_recover_config(p, SQLITE_RECOVER_FREELIST_CORRUPT,(void*)&bFreelist); - shellExec(pState->db, &rc, - "CREATE TABLE recovery.dbptr(" - " pgno, child, PRIMARY KEY(child, pgno)" - ") WITHOUT ROWID;" - "INSERT OR IGNORE INTO recovery.dbptr(pgno, child) " - " SELECT * FROM sqlite_dbptr" - " WHERE pgno NOT IN freelist AND child NOT IN freelist;" - - /* Delete any pointer to page 1. This ensures that page 1 is considered - ** a root page, regardless of how corrupt the db is. */ - "DELETE FROM recovery.dbptr WHERE child = 1;" - - /* Delete all pointers to any pages that have more than one pointer - ** to them. Such pages will be treated as root pages when recovering - ** data. */ - "DELETE FROM recovery.dbptr WHERE child IN (" - " SELECT child FROM recovery.dbptr GROUP BY child HAVING count(*)>1" - ");" - - /* Create the "map" table that will (eventually) contain instructions - ** for dealing with each page in the db that contains one or more - ** records. */ - "CREATE TABLE recovery.map(" - "pgno INTEGER PRIMARY KEY, maxlen INT, intkey, root INT" - ");" - - /* Populate table [map]. If there are circular loops of pages in the - ** database, the following adds all pages in such a loop to the map - ** as individual root pages. This could be handled better. */ - "WITH pages(i, maxlen) AS (" - " SELECT page_count, (" - " SELECT max(field+1) FROM sqlite_dbdata WHERE pgno=page_count" - " ) FROM pragma_page_count WHERE page_count>0" - " UNION ALL" - " SELECT i-1, (" - " SELECT max(field+1) FROM sqlite_dbdata WHERE pgno=i-1" - " ) FROM pages WHERE i>=2" - ")" - "INSERT INTO recovery.map(pgno, maxlen, intkey, root) " - " SELECT i, maxlen, NULL, (" - " WITH p(orig, pgno, parent) AS (" - " SELECT 0, i, (SELECT pgno FROM recovery.dbptr WHERE child=i)" - " UNION " - " SELECT i, p.parent, " - " (SELECT pgno FROM recovery.dbptr WHERE child=p.parent) FROM p" - " )" - " SELECT pgno FROM p WHERE (parent IS NULL OR pgno = orig)" - ") " - "FROM pages WHERE maxlen IS NOT NULL AND i NOT IN freelist;" - "UPDATE recovery.map AS o SET intkey = (" - " SELECT substr(data, 1, 1)==X'0D' FROM sqlite_dbpage WHERE pgno=o.pgno" - ");" - - /* Extract data from page 1 and any linked pages into table - ** recovery.schema. With the same schema as an sqlite_schema table. */ - "CREATE TABLE recovery.schema(type, name, tbl_name, rootpage, sql);" - "INSERT INTO recovery.schema SELECT " - " max(CASE WHEN field=0 THEN value ELSE NULL END)," - " max(CASE WHEN field=1 THEN value ELSE NULL END)," - " max(CASE WHEN field=2 THEN value ELSE NULL END)," - " max(CASE WHEN field=3 THEN value ELSE NULL END)," - " max(CASE WHEN field=4 THEN value ELSE NULL END)" - "FROM sqlite_dbdata WHERE pgno IN (" - " SELECT pgno FROM recovery.map WHERE root=1" - ")" - "GROUP BY pgno, cell;" - "CREATE INDEX recovery.schema_rootpage ON schema(rootpage);" - ); - - /* Open a transaction, then print out all non-virtual, non-"sqlite_%" - ** CREATE TABLE statements that extracted from the existing schema. */ - if( rc==SQLITE_OK ){ - sqlite3_stmt *pStmt = 0; - /* ".recover" might output content in an order which causes immediate - ** foreign key constraints to be violated. So disable foreign-key - ** constraint enforcement to prevent problems when running the output - ** script. */ - raw_printf(pState->out, "PRAGMA foreign_keys=OFF;\n"); - raw_printf(pState->out, "BEGIN;\n"); - raw_printf(pState->out, "PRAGMA writable_schema = on;\n"); - shellPrepare(pState->db, &rc, - "SELECT sql FROM recovery.schema " - "WHERE type='table' AND sql LIKE 'create table%'", &pStmt - ); - while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){ - const char *zCreateTable = (const char*)sqlite3_column_text(pStmt, 0); - raw_printf(pState->out, "CREATE TABLE IF NOT EXISTS %s;\n", - &zCreateTable[12] - ); - } - shellFinalize(&rc, pStmt); - } - - /* Figure out if an orphan table will be required. And if so, how many - ** user columns it should contain */ - shellPrepare(pState->db, &rc, - "SELECT coalesce(max(maxlen), -2) FROM recovery.map WHERE root>1" - , &pLoop - ); - if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pLoop) ){ - nOrphan = sqlite3_column_int(pLoop, 0); - } - shellFinalize(&rc, pLoop); - pLoop = 0; - - shellPrepare(pState->db, &rc, - "SELECT pgno FROM recovery.map WHERE root=?", &pPages - ); - - shellPrepare(pState->db, &rc, - "SELECT max(field), group_concat(shell_escape_crnl(quote" - "(case when (? AND field<0) then NULL else value end)" - "), ', ')" - ", min(field) " - "FROM sqlite_dbdata WHERE pgno = ? AND field != ?" - "GROUP BY cell", &pCells - ); - - /* Loop through each root page. */ - shellPrepare(pState->db, &rc, - "SELECT root, intkey, max(maxlen) FROM recovery.map" - " WHERE root>1 GROUP BY root, intkey ORDER BY root=(" - " SELECT rootpage FROM recovery.schema WHERE name='sqlite_sequence'" - ")", &pLoop - ); - while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pLoop) ){ - int iRoot = sqlite3_column_int(pLoop, 0); - int bIntkey = sqlite3_column_int(pLoop, 1); - int nCol = sqlite3_column_int(pLoop, 2); - int bNoop = 0; - RecoverTable *pTab; - - assert( bIntkey==0 || bIntkey==1 ); - pTab = recoverFindTable(pState, &rc, iRoot, bIntkey, nCol, &bNoop); - if( bNoop || rc ) continue; - if( pTab==0 ){ - if( pOrphan==0 ){ - pOrphan = recoverOrphanTable(pState, &rc, zLostAndFound, nOrphan); - } - pTab = pOrphan; - if( pTab==0 ) break; - } - - if( 0==sqlite3_stricmp(pTab->zQuoted, "\"sqlite_sequence\"") ){ - raw_printf(pState->out, "DELETE FROM sqlite_sequence;\n"); - } - sqlite3_bind_int(pPages, 1, iRoot); - if( bRowids==0 && pTab->iPk<0 ){ - sqlite3_bind_int(pCells, 1, 1); - }else{ - sqlite3_bind_int(pCells, 1, 0); - } - sqlite3_bind_int(pCells, 3, pTab->iPk); - - while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pPages) ){ - int iPgno = sqlite3_column_int(pPages, 0); - sqlite3_bind_int(pCells, 2, iPgno); - while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pCells) ){ - int nField = sqlite3_column_int(pCells, 0); - int iMin = sqlite3_column_int(pCells, 2); - const char *zVal = (const char*)sqlite3_column_text(pCells, 1); - - RecoverTable *pTab2 = pTab; - if( pTab!=pOrphan && (iMin<0)!=bIntkey ){ - if( pOrphan==0 ){ - pOrphan = recoverOrphanTable(pState, &rc, zLostAndFound, nOrphan); - } - pTab2 = pOrphan; - if( pTab2==0 ) break; - } - - nField = nField+1; - if( pTab2==pOrphan ){ - raw_printf(pState->out, - "INSERT INTO %s VALUES(%d, %d, %d, %s%s%s);\n", - pTab2->zQuoted, iRoot, iPgno, nField, - iMin<0 ? "" : "NULL, ", zVal, pTab2->azlCol[nField] - ); - }else{ - raw_printf(pState->out, "INSERT INTO %s(%s) VALUES( %s );\n", - pTab2->zQuoted, pTab2->azlCol[nField], zVal - ); - } - } - shellReset(&rc, pCells); - } - shellReset(&rc, pPages); - if( pTab!=pOrphan ) recoverFreeTable(pTab); + sqlite3_recover_run(p); + if( sqlite3_recover_errcode(p)!=SQLITE_OK ){ + const char *zErr = sqlite3_recover_errmsg(p); + int errCode = sqlite3_recover_errcode(p); + raw_printf(stderr, "sql error: %s (%d)\n", zErr, errCode); } - shellFinalize(&rc, pLoop); - shellFinalize(&rc, pPages); - shellFinalize(&rc, pCells); - recoverFreeTable(pOrphan); - - /* The rest of the schema */ - if( rc==SQLITE_OK ){ - sqlite3_stmt *pStmt = 0; - shellPrepare(pState->db, &rc, - "SELECT sql, name FROM recovery.schema " - "WHERE sql NOT LIKE 'create table%'", &pStmt - ); - while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){ - const char *zSql = (const char*)sqlite3_column_text(pStmt, 0); - if( sqlite3_strnicmp(zSql, "create virt", 11)==0 ){ - const char *zName = (const char*)sqlite3_column_text(pStmt, 1); - char *zPrint = shellMPrintf(&rc, - "INSERT INTO sqlite_schema VALUES('table', %Q, %Q, 0, %Q)", - zName, zName, zSql - ); - raw_printf(pState->out, "%s;\n", zPrint); - sqlite3_free(zPrint); - }else{ - raw_printf(pState->out, "%s;\n", zSql); - } - } - shellFinalize(&rc, pStmt); - } - - if( rc==SQLITE_OK ){ - raw_printf(pState->out, "PRAGMA writable_schema = off;\n"); - raw_printf(pState->out, "COMMIT;\n"); - } - sqlite3_exec(pState->db, "DETACH recovery", 0, 0, 0); + rc = sqlite3_recover_finish(p); return rc; } -#endif /* !(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_ENABLE_DBPAGE_VTAB) */ +#endif /* SQLITE_SHELL_HAVE_RECOVER */ /* @@ -19256,7 +23013,7 @@ static int do_meta_command(char *zLine, ShellState *p){ clearTempFile(p); #ifndef SQLITE_OMIT_AUTHORIZATION - if( c=='a' && strncmp(azArg[0], "auth", n)==0 ){ + if( c=='a' && cli_strncmp(azArg[0], "auth", n)==0 ){ if( nArg!=2 ){ raw_printf(stderr, "Usage: .auth ON|OFF\n"); rc = 1; @@ -19274,17 +23031,17 @@ static int do_meta_command(char *zLine, ShellState *p){ #endif #if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB) \ - && !defined(SQLITE_SHELL_WASM_MODE) - if( c=='a' && strncmp(azArg[0], "archive", n)==0 ){ + && !defined(SQLITE_SHELL_FIDDLE) + if( c=='a' && cli_strncmp(azArg[0], "archive", n)==0 ){ open_db(p, 0); failIfSafeMode(p, "cannot run .archive in safe mode"); rc = arDotCommand(p, 0, azArg, nArg); }else #endif -#ifndef SQLITE_SHELL_WASM_MODE - if( (c=='b' && n>=3 && strncmp(azArg[0], "backup", n)==0) - || (c=='s' && n>=3 && strncmp(azArg[0], "save", n)==0) +#ifndef SQLITE_SHELL_FIDDLE + if( (c=='b' && n>=3 && cli_strncmp(azArg[0], "backup", n)==0) + || (c=='s' && n>=3 && cli_strncmp(azArg[0], "save", n)==0) ){ const char *zDestFile = 0; const char *zDb = 0; @@ -19298,10 +23055,10 @@ static int do_meta_command(char *zLine, ShellState *p){ const char *z = azArg[j]; if( z[0]=='-' ){ if( z[1]=='-' ) z++; - if( strcmp(z, "-append")==0 ){ + if( cli_strcmp(z, "-append")==0 ){ zVfs = "apndvfs"; }else - if( strcmp(z, "-async")==0 ){ + if( cli_strcmp(z, "-async")==0 ){ bAsync = 1; }else { @@ -19323,7 +23080,7 @@ static int do_meta_command(char *zLine, ShellState *p){ return 1; } if( zDb==0 ) zDb = "main"; - rc = sqlite3_open_v2(zDestFile, &pDest, + rc = sqlite3_open_v2(zDestFile, &pDest, SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, zVfs); if( rc!=SQLITE_OK ){ utf8_printf(stderr, "Error: cannot open \"%s\"\n", zDestFile); @@ -19351,9 +23108,9 @@ static int do_meta_command(char *zLine, ShellState *p){ } close_db(pDest); }else -#endif /* !defined(SQLITE_SHELL_WASM_MODE) */ +#endif /* !defined(SQLITE_SHELL_FIDDLE) */ - if( c=='b' && n>=3 && strncmp(azArg[0], "bail", n)==0 ){ + if( c=='b' && n>=3 && cli_strncmp(azArg[0], "bail", n)==0 ){ if( nArg==2 ){ bail_on_error = booleanValue(azArg[1]); }else{ @@ -19362,7 +23119,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( c=='b' && n>=3 && strncmp(azArg[0], "binary", n)==0 ){ + if( c=='b' && n>=3 && cli_strncmp(azArg[0], "binary", n)==0 ){ if( nArg==2 ){ if( booleanValue(azArg[1]) ){ setBinaryMode(p->out, 1); @@ -19378,12 +23135,12 @@ static int do_meta_command(char *zLine, ShellState *p){ /* The undocumented ".breakpoint" command causes a call to the no-op ** routine named test_breakpoint(). */ - if( c=='b' && n>=3 && strncmp(azArg[0], "breakpoint", n)==0 ){ + if( c=='b' && n>=3 && cli_strncmp(azArg[0], "breakpoint", n)==0 ){ test_breakpoint(); }else -#ifndef SQLITE_SHELL_WASM_MODE - if( c=='c' && strcmp(azArg[0],"cd")==0 ){ +#ifndef SQLITE_SHELL_FIDDLE + if( c=='c' && cli_strcmp(azArg[0],"cd")==0 ){ failIfSafeMode(p, "cannot run .cd in safe mode"); if( nArg==2 ){ #if defined(_WIN32) || defined(WIN32) @@ -19402,9 +23159,9 @@ static int do_meta_command(char *zLine, ShellState *p){ rc = 1; } }else -#endif /* !defined(SQLITE_SHELL_WASM_MODE) */ +#endif /* !defined(SQLITE_SHELL_FIDDLE) */ - if( c=='c' && n>=3 && strncmp(azArg[0], "changes", n)==0 ){ + if( c=='c' && n>=3 && cli_strncmp(azArg[0], "changes", n)==0 ){ if( nArg==2 ){ setOrClearFlag(p, SHFLG_CountChanges, azArg[1]); }else{ @@ -19413,12 +23170,12 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE /* Cancel output redirection, if it is currently set (by .testcase) ** Then read the content of the testcase-out.txt file and compare against ** azArg[1]. If there are differences, report an error and exit. */ - if( c=='c' && n>=3 && strncmp(azArg[0], "check", n)==0 ){ + if( c=='c' && n>=3 && cli_strncmp(azArg[0], "check", n)==0 ){ char *zRes = 0; output_reset(p); if( nArg!=2 ){ @@ -19438,10 +23195,10 @@ static int do_meta_command(char *zLine, ShellState *p){ } sqlite3_free(zRes); }else -#endif /* !defined(SQLITE_SHELL_WASM_MODE) */ +#endif /* !defined(SQLITE_SHELL_FIDDLE) */ -#ifndef SQLITE_SHELL_WASM_MODE - if( c=='c' && strncmp(azArg[0], "clone", n)==0 ){ +#ifndef SQLITE_SHELL_FIDDLE + if( c=='c' && cli_strncmp(azArg[0], "clone", n)==0 ){ failIfSafeMode(p, "cannot run .clone in safe mode"); if( nArg==2 ){ tryToClone(p, azArg[1]); @@ -19450,9 +23207,9 @@ static int do_meta_command(char *zLine, ShellState *p){ rc = 1; } }else -#endif /* !defined(SQLITE_SHELL_WASM_MODE) */ +#endif /* !defined(SQLITE_SHELL_FIDDLE) */ - if( c=='c' && strncmp(azArg[0], "connection", n)==0 ){ + if( c=='c' && cli_strncmp(azArg[0], "connection", n)==0 ){ if( nArg==1 ){ /* List available connections */ int i; @@ -19479,7 +23236,7 @@ static int do_meta_command(char *zLine, ShellState *p){ globalDb = p->db = p->pAuxDb->db; p->pAuxDb->db = 0; } - }else if( nArg==3 && strcmp(azArg[1], "close")==0 + }else if( nArg==3 && cli_strcmp(azArg[1], "close")==0 && IsDigit(azArg[2][0]) && azArg[2][1]==0 ){ int i = azArg[2][0] - '0'; if( i<0 || i>=ArraySize(p->aAuxDb) ){ @@ -19498,7 +23255,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( c=='d' && n>1 && strncmp(azArg[0], "databases", n)==0 ){ + if( c=='d' && n>1 && cli_strncmp(azArg[0], "databases", n)==0 ){ char **azName = 0; int nName = 0; sqlite3_stmt *pStmt; @@ -19537,7 +23294,7 @@ static int do_meta_command(char *zLine, ShellState *p){ sqlite3_free(azName); }else - if( c=='d' && n>=3 && strncmp(azArg[0], "dbconfig", n)==0 ){ + if( c=='d' && n>=3 && cli_strncmp(azArg[0], "dbconfig", n)==0 ){ static const struct DbConfigChoices { const char *zName; int op; @@ -19562,7 +23319,7 @@ static int do_meta_command(char *zLine, ShellState *p){ int ii, v; open_db(p, 0); for(ii=0; ii<ArraySize(aDbConfig); ii++){ - if( nArg>1 && strcmp(azArg[1], aDbConfig[ii].zName)!=0 ) continue; + if( nArg>1 && cli_strcmp(azArg[1], aDbConfig[ii].zName)!=0 ) continue; if( nArg>=3 ){ sqlite3_db_config(p->db, aDbConfig[ii].op, booleanValue(azArg[2]), 0); } @@ -19573,21 +23330,21 @@ static int do_meta_command(char *zLine, ShellState *p){ if( nArg>1 && ii==ArraySize(aDbConfig) ){ utf8_printf(stderr, "Error: unknown dbconfig \"%s\"\n", azArg[1]); utf8_printf(stderr, "Enter \".dbconfig\" with no arguments for a list\n"); - } + } }else -#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_ENABLE_DBPAGE_VTAB) - if( c=='d' && n>=3 && strncmp(azArg[0], "dbinfo", n)==0 ){ +#if SQLITE_SHELL_HAVE_RECOVER + if( c=='d' && n>=3 && cli_strncmp(azArg[0], "dbinfo", n)==0 ){ rc = shell_dbinfo_command(p, nArg, azArg); }else - if( c=='r' && strncmp(azArg[0], "recover", n)==0 ){ + if( c=='r' && cli_strncmp(azArg[0], "recover", n)==0 ){ open_db(p, 0); rc = recoverDatabaseCmd(p, nArg, azArg); }else -#endif /* !(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_ENABLE_DBPAGE_VTAB) */ +#endif /* SQLITE_SHELL_HAVE_RECOVER */ - if( c=='d' && strncmp(azArg[0], "dump", n)==0 ){ + if( c=='d' && cli_strncmp(azArg[0], "dump", n)==0 ){ char *zLike = 0; char *zSql; int i; @@ -19600,7 +23357,7 @@ static int do_meta_command(char *zLine, ShellState *p){ if( azArg[i][0]=='-' ){ const char *z = azArg[i]+1; if( z[0]=='-' ) z++; - if( strcmp(z,"preserve-rowids")==0 ){ + if( cli_strcmp(z,"preserve-rowids")==0 ){ #ifdef SQLITE_OMIT_VIRTUALTABLE raw_printf(stderr, "The --preserve-rowids option is not compatible" " with SQLITE_OMIT_VIRTUALTABLE\n"); @@ -19611,13 +23368,13 @@ static int do_meta_command(char *zLine, ShellState *p){ ShellSetFlag(p, SHFLG_PreserveRowid); #endif }else - if( strcmp(z,"newlines")==0 ){ + if( cli_strcmp(z,"newlines")==0 ){ ShellSetFlag(p, SHFLG_Newlines); }else - if( strcmp(z,"data-only")==0 ){ + if( cli_strcmp(z,"data-only")==0 ){ ShellSetFlag(p, SHFLG_DumpDataOnly); }else - if( strcmp(z,"nosys")==0 ){ + if( cli_strcmp(z,"nosys")==0 ){ ShellSetFlag(p, SHFLG_DumpNoSys); }else { @@ -19640,7 +23397,7 @@ static int do_meta_command(char *zLine, ShellState *p){ " substr(o.name, 1, length(name)+1) == (name||'_')" ")", azArg[i], azArg[i] ); - + if( zLike ){ zLike = sqlite3_mprintf("%z OR %z", zLike, zExpr); }else{ @@ -19699,7 +23456,7 @@ static int do_meta_command(char *zLine, ShellState *p){ p->shellFlgs = savedShellFlags; }else - if( c=='e' && strncmp(azArg[0], "echo", n)==0 ){ + if( c=='e' && cli_strncmp(azArg[0], "echo", n)==0 ){ if( nArg==2 ){ setOrClearFlag(p, SHFLG_Echo, azArg[1]); }else{ @@ -19708,22 +23465,22 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( c=='e' && strncmp(azArg[0], "eqp", n)==0 ){ + if( c=='e' && cli_strncmp(azArg[0], "eqp", n)==0 ){ if( nArg==2 ){ p->autoEQPtest = 0; if( p->autoEQPtrace ){ if( p->db ) sqlite3_exec(p->db, "PRAGMA vdbe_trace=OFF;", 0, 0, 0); p->autoEQPtrace = 0; } - if( strcmp(azArg[1],"full")==0 ){ + if( cli_strcmp(azArg[1],"full")==0 ){ p->autoEQP = AUTOEQP_full; - }else if( strcmp(azArg[1],"trigger")==0 ){ + }else if( cli_strcmp(azArg[1],"trigger")==0 ){ p->autoEQP = AUTOEQP_trigger; #ifdef SQLITE_DEBUG - }else if( strcmp(azArg[1],"test")==0 ){ + }else if( cli_strcmp(azArg[1],"test")==0 ){ p->autoEQP = AUTOEQP_on; p->autoEQPtest = 1; - }else if( strcmp(azArg[1],"trace")==0 ){ + }else if( cli_strcmp(azArg[1],"trace")==0 ){ p->autoEQP = AUTOEQP_full; p->autoEQPtrace = 1; open_db(p, 0); @@ -19739,8 +23496,8 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else -#ifndef SQLITE_SHELL_WASM_MODE - if( c=='e' && strncmp(azArg[0], "exit", n)==0 ){ +#ifndef SQLITE_SHELL_FIDDLE + if( c=='e' && cli_strncmp(azArg[0], "exit", n)==0 ){ if( nArg>1 && (rc = (int)integerValue(azArg[1]))!=0 ) exit(rc); rc = 2; }else @@ -19748,10 +23505,10 @@ static int do_meta_command(char *zLine, ShellState *p){ /* The ".explain" command is automatic now. It is largely pointless. It ** retained purely for backwards compatibility */ - if( c=='e' && strncmp(azArg[0], "explain", n)==0 ){ + if( c=='e' && cli_strncmp(azArg[0], "explain", n)==0 ){ int val = 1; if( nArg>=2 ){ - if( strcmp(azArg[1],"auto")==0 ){ + if( cli_strcmp(azArg[1],"auto")==0 ){ val = 99; }else{ val = booleanValue(azArg[1]); @@ -19771,9 +23528,9 @@ static int do_meta_command(char *zLine, ShellState *p){ }else #ifndef SQLITE_OMIT_VIRTUALTABLE - if( c=='e' && strncmp(azArg[0], "expert", n)==0 ){ + if( c=='e' && cli_strncmp(azArg[0], "expert", n)==0 ){ if( p->bSafeMode ){ - raw_printf(stderr, + raw_printf(stderr, "Cannot run experimental commands such as \"%s\" in safe mode\n", azArg[0]); rc = 1; @@ -19784,7 +23541,7 @@ static int do_meta_command(char *zLine, ShellState *p){ }else #endif - if( c=='f' && strncmp(azArg[0], "filectrl", n)==0 ){ + if( c=='f' && cli_strncmp(azArg[0], "filectrl", n)==0 ){ static const struct { const char *zCtrlName; /* Name of a test-control option */ int ctrlCode; /* Integer code for that option */ @@ -19792,7 +23549,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } aCtrl[] = { { "chunk_size", SQLITE_FCNTL_CHUNK_SIZE, "SIZE" }, { "data_version", SQLITE_FCNTL_DATA_VERSION, "" }, - { "has_moved", SQLITE_FCNTL_HAS_MOVED, "" }, + { "has_moved", SQLITE_FCNTL_HAS_MOVED, "" }, { "lock_timeout", SQLITE_FCNTL_LOCK_TIMEOUT, "MILLISEC" }, { "persist_wal", SQLITE_FCNTL_PERSIST_WAL, "[BOOLEAN]" }, /* { "pragma", SQLITE_FCNTL_PRAGMA, "NAME ARG" },*/ @@ -19813,8 +23570,8 @@ static int do_meta_command(char *zLine, ShellState *p){ open_db(p, 0); zCmd = nArg>=2 ? azArg[1] : "help"; - if( zCmd[0]=='-' - && (strcmp(zCmd,"--schema")==0 || strcmp(zCmd,"-schema")==0) + if( zCmd[0]=='-' + && (cli_strcmp(zCmd,"--schema")==0 || cli_strcmp(zCmd,"-schema")==0) && nArg>=4 ){ zSchema = azArg[2]; @@ -19830,7 +23587,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } /* --help lists all file-controls */ - if( strcmp(zCmd,"help")==0 ){ + if( cli_strcmp(zCmd,"help")==0 ){ utf8_printf(p->out, "Available file-controls:\n"); for(i=0; i<ArraySize(aCtrl); i++){ utf8_printf(p->out, " .filectrl %s %s\n", @@ -19844,7 +23601,7 @@ static int do_meta_command(char *zLine, ShellState *p){ ** of the option name, or a numerical value. */ n2 = strlen30(zCmd); for(i=0; i<ArraySize(aCtrl); i++){ - if( strncmp(zCmd, aCtrl[i].zCtrlName, n2)==0 ){ + if( cli_strncmp(zCmd, aCtrl[i].zCtrlName, n2)==0 ){ if( filectrl<0 ){ filectrl = aCtrl[i].ctrlCode; iCtrl = i; @@ -19931,7 +23688,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( c=='f' && strncmp(azArg[0], "fullschema", n)==0 ){ + if( c=='f' && cli_strncmp(azArg[0], "fullschema", n)==0 ){ ShellState data; int doStats = 0; memcpy(&data, p, sizeof(data)); @@ -19978,7 +23735,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( c=='h' && strncmp(azArg[0], "headers", n)==0 ){ + if( c=='h' && cli_strncmp(azArg[0], "headers", n)==0 ){ if( nArg==2 ){ p->showHeader = booleanValue(azArg[1]); p->shellFlgs |= SHFLG_HeaderSet; @@ -19988,7 +23745,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( c=='h' && strncmp(azArg[0], "help", n)==0 ){ + if( c=='h' && cli_strncmp(azArg[0], "help", n)==0 ){ if( nArg>=2 ){ n = showHelp(p->out, azArg[1]); if( n==0 ){ @@ -19999,8 +23756,8 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else -#ifndef SQLITE_SHELL_WASM_MODE - if( c=='i' && strncmp(azArg[0], "import", n)==0 ){ +#ifndef SQLITE_SHELL_FIDDLE + if( c=='i' && cli_strncmp(azArg[0], "import", n)==0 ){ char *zTable = 0; /* Insert data into this table */ char *zSchema = 0; /* within this schema (may default to "main") */ char *zFile = 0; /* Name of file to extra content from */ @@ -20040,18 +23797,18 @@ static int do_meta_command(char *zLine, ShellState *p){ showHelp(p->out, "import"); goto meta_command_exit; } - }else if( strcmp(z,"-v")==0 ){ + }else if( cli_strcmp(z,"-v")==0 ){ eVerbose++; - }else if( strcmp(z,"-schema")==0 && i<nArg-1 ){ + }else if( cli_strcmp(z,"-schema")==0 && i<nArg-1 ){ zSchema = azArg[++i]; - }else if( strcmp(z,"-skip")==0 && i<nArg-1 ){ + }else if( cli_strcmp(z,"-skip")==0 && i<nArg-1 ){ nSkip = integerValue(azArg[++i]); - }else if( strcmp(z,"-ascii")==0 ){ + }else if( cli_strcmp(z,"-ascii")==0 ){ sCtx.cColSep = SEP_Unit[0]; sCtx.cRowSep = SEP_Record[0]; xRead = ascii_read_one_field; useOutputMode = 0; - }else if( strcmp(z,"-csv")==0 ){ + }else if( cli_strcmp(z,"-csv")==0 ){ sCtx.cColSep = ','; sCtx.cRowSep = '\n'; xRead = csv_read_one_field; @@ -20091,7 +23848,9 @@ static int do_meta_command(char *zLine, ShellState *p){ "Error: non-null row separator required for import\n"); goto meta_command_exit; } - if( nSep==2 && p->mode==MODE_Csv && strcmp(p->rowSeparator,SEP_CrLf)==0 ){ + if( nSep==2 && p->mode==MODE_Csv + && cli_strcmp(p->rowSeparator,SEP_CrLf)==0 + ){ /* When importing CSV (only), if the row separator is set to the ** default output row separator, change it to the default input ** row separator. This avoids having to maintain different input @@ -20290,10 +24049,10 @@ static int do_meta_command(char *zLine, ShellState *p){ sCtx.nRow, sCtx.nErr, sCtx.nLine-1); } }else -#endif /* !defined(SQLITE_SHELL_WASM_MODE) */ +#endif /* !defined(SQLITE_SHELL_FIDDLE) */ #ifndef SQLITE_UNTESTABLE - if( c=='i' && strncmp(azArg[0], "imposter", n)==0 ){ + if( c=='i' && cli_strncmp(azArg[0], "imposter", n)==0 ){ char *zSql; char *zCollist = 0; sqlite3_stmt *pStmt; @@ -20394,13 +24153,13 @@ static int do_meta_command(char *zLine, ShellState *p){ #endif /* !defined(SQLITE_OMIT_TEST_CONTROL) */ #ifdef SQLITE_ENABLE_IOTRACE - if( c=='i' && strncmp(azArg[0], "iotrace", n)==0 ){ + if( c=='i' && cli_strncmp(azArg[0], "iotrace", n)==0 ){ SQLITE_API extern void (SQLITE_CDECL *sqlite3IoTrace)(const char*, ...); if( iotrace && iotrace!=stdout ) fclose(iotrace); iotrace = 0; if( nArg<2 ){ sqlite3IoTrace = 0; - }else if( strcmp(azArg[1], "-")==0 ){ + }else if( cli_strcmp(azArg[1], "-")==0 ){ sqlite3IoTrace = iotracePrintf; iotrace = stdout; }else{ @@ -20416,7 +24175,7 @@ static int do_meta_command(char *zLine, ShellState *p){ }else #endif - if( c=='l' && n>=5 && strncmp(azArg[0], "limits", n)==0 ){ + if( c=='l' && n>=5 && cli_strncmp(azArg[0], "limits", n)==0 ){ static const struct { const char *zLimitName; /* Name of a limit */ int limitCode; /* Integer code for that limit */ @@ -20475,13 +24234,13 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( c=='l' && n>2 && strncmp(azArg[0], "lint", n)==0 ){ + if( c=='l' && n>2 && cli_strncmp(azArg[0], "lint", n)==0 ){ open_db(p, 0); lintDotCommand(p, azArg, nArg); }else -#if !defined(SQLITE_OMIT_LOAD_EXTENSION) && !defined(SQLITE_SHELL_WASM_MODE) - if( c=='l' && strncmp(azArg[0], "load", n)==0 ){ +#if !defined(SQLITE_OMIT_LOAD_EXTENSION) && !defined(SQLITE_SHELL_FIDDLE) + if( c=='l' && cli_strncmp(azArg[0], "load", n)==0 ){ const char *zFile, *zProc; char *zErrMsg = 0; failIfSafeMode(p, "cannot run .load in safe mode"); @@ -20502,8 +24261,8 @@ static int do_meta_command(char *zLine, ShellState *p){ }else #endif -#ifndef SQLITE_SHELL_WASM_MODE - if( c=='l' && strncmp(azArg[0], "log", n)==0 ){ +#ifndef SQLITE_SHELL_FIDDLE + if( c=='l' && cli_strncmp(azArg[0], "log", n)==0 ){ failIfSafeMode(p, "cannot run .log in safe mode"); if( nArg!=2 ){ raw_printf(stderr, "Usage: .log FILENAME\n"); @@ -20516,7 +24275,7 @@ static int do_meta_command(char *zLine, ShellState *p){ }else #endif - if( c=='m' && strncmp(azArg[0], "mode", n)==0 ){ + if( c=='m' && cli_strncmp(azArg[0], "mode", n)==0 ){ const char *zMode = 0; const char *zTabname = 0; int i, n2; @@ -20535,10 +24294,10 @@ static int do_meta_command(char *zLine, ShellState *p){ cmOpts.bQuote = 0; }else if( zMode==0 ){ zMode = z; - /* Apply defaults for qbox pseudo-mods. If that + /* Apply defaults for qbox pseudo-mode. If that * overwrites already-set values, user was informed of this. */ - if( strcmp(z, "qbox")==0 ){ + if( cli_strcmp(z, "qbox")==0 ){ ColModeOpts cmo = ColModeOpts_default_qbox; zMode = "box"; cmOpts = cmo; @@ -20577,58 +24336,58 @@ static int do_meta_command(char *zLine, ShellState *p){ zMode = modeDescr[p->mode]; } n2 = strlen30(zMode); - if( strncmp(zMode,"lines",n2)==0 ){ + if( cli_strncmp(zMode,"lines",n2)==0 ){ p->mode = MODE_Line; sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row); - }else if( strncmp(zMode,"columns",n2)==0 ){ + }else if( cli_strncmp(zMode,"columns",n2)==0 ){ p->mode = MODE_Column; if( (p->shellFlgs & SHFLG_HeaderSet)==0 ){ p->showHeader = 1; } sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row); p->cmOpts = cmOpts; - }else if( strncmp(zMode,"list",n2)==0 ){ + }else if( cli_strncmp(zMode,"list",n2)==0 ){ p->mode = MODE_List; sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Column); sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row); - }else if( strncmp(zMode,"html",n2)==0 ){ + }else if( cli_strncmp(zMode,"html",n2)==0 ){ p->mode = MODE_Html; - }else if( strncmp(zMode,"tcl",n2)==0 ){ + }else if( cli_strncmp(zMode,"tcl",n2)==0 ){ p->mode = MODE_Tcl; sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Space); sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row); - }else if( strncmp(zMode,"csv",n2)==0 ){ + }else if( cli_strncmp(zMode,"csv",n2)==0 ){ p->mode = MODE_Csv; sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Comma); sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_CrLf); - }else if( strncmp(zMode,"tabs",n2)==0 ){ + }else if( cli_strncmp(zMode,"tabs",n2)==0 ){ p->mode = MODE_List; sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Tab); - }else if( strncmp(zMode,"insert",n2)==0 ){ + }else if( cli_strncmp(zMode,"insert",n2)==0 ){ p->mode = MODE_Insert; set_table_name(p, zTabname ? zTabname : "table"); - }else if( strncmp(zMode,"quote",n2)==0 ){ + }else if( cli_strncmp(zMode,"quote",n2)==0 ){ p->mode = MODE_Quote; sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Comma); sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row); - }else if( strncmp(zMode,"ascii",n2)==0 ){ + }else if( cli_strncmp(zMode,"ascii",n2)==0 ){ p->mode = MODE_Ascii; sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Unit); sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Record); - }else if( strncmp(zMode,"markdown",n2)==0 ){ + }else if( cli_strncmp(zMode,"markdown",n2)==0 ){ p->mode = MODE_Markdown; p->cmOpts = cmOpts; - }else if( strncmp(zMode,"table",n2)==0 ){ + }else if( cli_strncmp(zMode,"table",n2)==0 ){ p->mode = MODE_Table; p->cmOpts = cmOpts; - }else if( strncmp(zMode,"box",n2)==0 ){ + }else if( cli_strncmp(zMode,"box",n2)==0 ){ p->mode = MODE_Box; p->cmOpts = cmOpts; - }else if( strncmp(zMode,"count",n2)==0 ){ + }else if( cli_strncmp(zMode,"count",n2)==0 ){ p->mode = MODE_Count; - }else if( strncmp(zMode,"off",n2)==0 ){ + }else if( cli_strncmp(zMode,"off",n2)==0 ){ p->mode = MODE_Off; - }else if( strncmp(zMode,"json",n2)==0 ){ + }else if( cli_strncmp(zMode,"json",n2)==0 ){ p->mode = MODE_Json; }else{ raw_printf(stderr, "Error: mode should be one of: " @@ -20639,12 +24398,12 @@ static int do_meta_command(char *zLine, ShellState *p){ p->cMode = p->mode; }else -#ifndef SQLITE_SHELL_WASM_MODE - if( c=='n' && strcmp(azArg[0], "nonce")==0 ){ +#ifndef SQLITE_SHELL_FIDDLE + if( c=='n' && cli_strcmp(azArg[0], "nonce")==0 ){ if( nArg!=2 ){ raw_printf(stderr, "Usage: .nonce NONCE\n"); rc = 1; - }else if( p->zNonce==0 || strcmp(azArg[1],p->zNonce)!=0 ){ + }else if( p->zNonce==0 || cli_strcmp(azArg[1],p->zNonce)!=0 ){ raw_printf(stderr, "line %d: incorrect nonce: \"%s\"\n", p->lineno, azArg[1]); exit(1); @@ -20654,9 +24413,9 @@ static int do_meta_command(char *zLine, ShellState *p){ ** at the end of this procedure */ } }else -#endif /* !defined(SQLITE_SHELL_WASM_MODE) */ +#endif /* !defined(SQLITE_SHELL_FIDDLE) */ - if( c=='n' && strncmp(azArg[0], "nullvalue", n)==0 ){ + if( c=='n' && cli_strncmp(azArg[0], "nullvalue", n)==0 ){ if( nArg==2 ){ sqlite3_snprintf(sizeof(p->nullValue), p->nullValue, "%.*s", (int)ArraySize(p->nullValue)-1, azArg[1]); @@ -20666,7 +24425,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( c=='o' && strncmp(azArg[0], "open", n)==0 && n>=2 ){ + if( c=='o' && cli_strncmp(azArg[0], "open", n)==0 && n>=2 ){ const char *zFN = 0; /* Pointer to constant filename */ char *zNewFilename = 0; /* Name of the database file to open */ int iName = 1; /* Index in azArg[] of the filename */ @@ -20676,7 +24435,7 @@ static int do_meta_command(char *zLine, ShellState *p){ /* Check for command-line arguments */ for(iName=1; iName<nArg; iName++){ const char *z = azArg[iName]; -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE if( optionMatch(z,"new") ){ newFlag = 1; #ifdef SQLITE_HAVE_ZLIB @@ -20698,7 +24457,7 @@ static int do_meta_command(char *zLine, ShellState *p){ p->szMax = integerValue(azArg[++iName]); #endif /* SQLITE_OMIT_DESERIALIZE */ }else -#endif /* !SQLITE_SHELL_WASM_MODE */ +#endif /* !SQLITE_SHELL_FIDDLE */ if( z[0]=='-' ){ utf8_printf(stderr, "unknown option: %s\n", z); rc = 1; @@ -20726,11 +24485,11 @@ static int do_meta_command(char *zLine, ShellState *p){ /* If a filename is specified, try to open it first */ if( zFN || p->openMode==SHELL_OPEN_HEXDB ){ if( newFlag && zFN && !p->bSafeMode ) shellDeleteFile(zFN); -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE if( p->bSafeMode && p->openMode!=SHELL_OPEN_HEXDB && zFN - && strcmp(zFN,":memory:")!=0 + && cli_strcmp(zFN,":memory:")!=0 ){ failIfSafeMode(p, "cannot open disk-based database files in safe mode"); } @@ -20759,10 +24518,11 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE if( (c=='o' - && (strncmp(azArg[0], "output", n)==0||strncmp(azArg[0], "once", n)==0)) - || (c=='e' && n==5 && strcmp(azArg[0],"excel")==0) + && (cli_strncmp(azArg[0], "output", n)==0 + || cli_strncmp(azArg[0], "once", n)==0)) + || (c=='e' && n==5 && cli_strcmp(azArg[0],"excel")==0) ){ char *zFile = 0; int bTxtMode = 0; @@ -20776,21 +24536,21 @@ static int do_meta_command(char *zLine, ShellState *p){ if( c=='e' ){ eMode = 'x'; bOnce = 2; - }else if( strncmp(azArg[0],"once",n)==0 ){ + }else if( cli_strncmp(azArg[0],"once",n)==0 ){ bOnce = 1; } for(i=1; i<nArg; i++){ char *z = azArg[i]; if( z[0]=='-' ){ if( z[1]=='-' ) z++; - if( strcmp(z,"-bom")==0 ){ + if( cli_strcmp(z,"-bom")==0 ){ zBOM[0] = 0xef; zBOM[1] = 0xbb; zBOM[2] = 0xbf; zBOM[3] = 0; - }else if( c!='e' && strcmp(z,"-x")==0 ){ + }else if( c!='e' && cli_strcmp(z,"-x")==0 ){ eMode = 'x'; /* spreadsheet */ - }else if( c!='e' && strcmp(z,"-e")==0 ){ + }else if( c!='e' && cli_strcmp(z,"-e")==0 ){ eMode = 'e'; /* text editor */ }else{ utf8_printf(p->out, "ERROR: unknown option: \"%s\". Usage:\n", @@ -20863,7 +24623,7 @@ static int do_meta_command(char *zLine, ShellState *p){ }else{ p->out = output_file_open(zFile, bTxtMode); if( p->out==0 ){ - if( strcmp(zFile,"off")!=0 ){ + if( cli_strcmp(zFile,"off")!=0 ){ utf8_printf(stderr,"Error: cannot write to \"%s\"\n", zFile); } p->out = stdout; @@ -20875,16 +24635,16 @@ static int do_meta_command(char *zLine, ShellState *p){ } sqlite3_free(zFile); }else -#endif /* !defined(SQLITE_SHELL_WASM_MODE) */ +#endif /* !defined(SQLITE_SHELL_FIDDLE) */ - if( c=='p' && n>=3 && strncmp(azArg[0], "parameter", n)==0 ){ + if( c=='p' && n>=3 && cli_strncmp(azArg[0], "parameter", n)==0 ){ open_db(p,0); if( nArg<=1 ) goto parameter_syntax_error; /* .parameter clear ** Clear all bind parameters by dropping the TEMP table that holds them. */ - if( nArg==2 && strcmp(azArg[1],"clear")==0 ){ + if( nArg==2 && cli_strcmp(azArg[1],"clear")==0 ){ sqlite3_exec(p->db, "DROP TABLE IF EXISTS temp.sqlite_parameters;", 0, 0, 0); }else @@ -20892,7 +24652,7 @@ static int do_meta_command(char *zLine, ShellState *p){ /* .parameter list ** List all bind parameters. */ - if( nArg==2 && strcmp(azArg[1],"list")==0 ){ + if( nArg==2 && cli_strcmp(azArg[1],"list")==0 ){ sqlite3_stmt *pStmt = 0; int rx; int len = 0; @@ -20921,7 +24681,7 @@ static int do_meta_command(char *zLine, ShellState *p){ ** Make sure the TEMP table used to hold bind parameters exists. ** Create it if necessary. */ - if( nArg==2 && strcmp(azArg[1],"init")==0 ){ + if( nArg==2 && cli_strcmp(azArg[1],"init")==0 ){ bind_table_init(p); }else @@ -20931,7 +24691,7 @@ static int do_meta_command(char *zLine, ShellState *p){ ** VALUE can be in either SQL literal notation, or if not it will be ** understood to be a text string. */ - if( nArg==4 && strcmp(azArg[1],"set")==0 ){ + if( nArg==4 && cli_strcmp(azArg[1],"set")==0 ){ int rx; char *zSql; sqlite3_stmt *pStmt; @@ -20969,7 +24729,7 @@ static int do_meta_command(char *zLine, ShellState *p){ ** Remove the NAME binding from the parameter binding table, if it ** exists. */ - if( nArg==3 && strcmp(azArg[1],"unset")==0 ){ + if( nArg==3 && cli_strcmp(azArg[1],"unset")==0 ){ char *zSql = sqlite3_mprintf( "DELETE FROM temp.sqlite_parameters WHERE key=%Q", azArg[2]); shell_check_oom(zSql); @@ -20981,7 +24741,7 @@ static int do_meta_command(char *zLine, ShellState *p){ showHelp(p->out, "parameter"); }else - if( c=='p' && n>=3 && strncmp(azArg[0], "print", n)==0 ){ + if( c=='p' && n>=3 && cli_strncmp(azArg[0], "print", n)==0 ){ int i; for(i=1; i<nArg; i++){ if( i>1 ) raw_printf(p->out, " "); @@ -20991,7 +24751,7 @@ static int do_meta_command(char *zLine, ShellState *p){ }else #ifndef SQLITE_OMIT_PROGRESS_CALLBACK - if( c=='p' && n>=3 && strncmp(azArg[0], "progress", n)==0 ){ + if( c=='p' && n>=3 && cli_strncmp(azArg[0], "progress", n)==0 ){ int i; int nn = 0; p->flgProgress = 0; @@ -21002,19 +24762,19 @@ static int do_meta_command(char *zLine, ShellState *p){ if( z[0]=='-' ){ z++; if( z[0]=='-' ) z++; - if( strcmp(z,"quiet")==0 || strcmp(z,"q")==0 ){ + if( cli_strcmp(z,"quiet")==0 || cli_strcmp(z,"q")==0 ){ p->flgProgress |= SHELL_PROGRESS_QUIET; continue; } - if( strcmp(z,"reset")==0 ){ + if( cli_strcmp(z,"reset")==0 ){ p->flgProgress |= SHELL_PROGRESS_RESET; continue; } - if( strcmp(z,"once")==0 ){ + if( cli_strcmp(z,"once")==0 ){ p->flgProgress |= SHELL_PROGRESS_ONCE; continue; } - if( strcmp(z,"limit")==0 ){ + if( cli_strcmp(z,"limit")==0 ){ if( i+1>=nArg ){ utf8_printf(stderr, "Error: missing argument on --limit\n"); rc = 1; @@ -21036,23 +24796,23 @@ static int do_meta_command(char *zLine, ShellState *p){ }else #endif /* SQLITE_OMIT_PROGRESS_CALLBACK */ - if( c=='p' && strncmp(azArg[0], "prompt", n)==0 ){ + if( c=='p' && cli_strncmp(azArg[0], "prompt", n)==0 ){ if( nArg >= 2) { - strncpy(mainPrompt,azArg[1],(int)ArraySize(mainPrompt)-1); + shell_strncpy(mainPrompt,azArg[1],(int)ArraySize(mainPrompt)-1); } if( nArg >= 3) { - strncpy(continuePrompt,azArg[2],(int)ArraySize(continuePrompt)-1); + shell_strncpy(continuePrompt,azArg[2],(int)ArraySize(continuePrompt)-1); } }else -#ifndef SQLITE_SHELL_WASM_MODE - if( c=='q' && strncmp(azArg[0], "quit", n)==0 ){ +#ifndef SQLITE_SHELL_FIDDLE + if( c=='q' && cli_strncmp(azArg[0], "quit", n)==0 ){ rc = 2; }else #endif -#ifndef SQLITE_SHELL_WASM_MODE - if( c=='r' && n>=3 && strncmp(azArg[0], "read", n)==0 ){ +#ifndef SQLITE_SHELL_FIDDLE + if( c=='r' && n>=3 && cli_strncmp(azArg[0], "read", n)==0 ){ FILE *inSaved = p->in; int savedLineno = p->lineno; failIfSafeMode(p, "cannot run .read in safe mode"); @@ -21086,10 +24846,10 @@ static int do_meta_command(char *zLine, ShellState *p){ p->in = inSaved; p->lineno = savedLineno; }else -#endif /* !defined(SQLITE_SHELL_WASM_MODE) */ +#endif /* !defined(SQLITE_SHELL_FIDDLE) */ -#ifndef SQLITE_SHELL_WASM_MODE - if( c=='r' && n>=3 && strncmp(azArg[0], "restore", n)==0 ){ +#ifndef SQLITE_SHELL_FIDDLE + if( c=='r' && n>=3 && cli_strncmp(azArg[0], "restore", n)==0 ){ const char *zSrcFile; const char *zDb; sqlite3 *pSrc; @@ -21140,21 +24900,25 @@ static int do_meta_command(char *zLine, ShellState *p){ } close_db(pSrc); }else -#endif /* !defined(SQLITE_SHELL_WASM_MODE) */ +#endif /* !defined(SQLITE_SHELL_FIDDLE) */ - if( c=='s' && strncmp(azArg[0], "scanstats", n)==0 ){ + if( c=='s' && cli_strncmp(azArg[0], "scanstats", n)==0 ){ if( nArg==2 ){ - p->scanstatsOn = (u8)booleanValue(azArg[1]); + if( cli_strcmp(azArg[1], "est")==0 ){ + p->scanstatsOn = 2; + }else{ + p->scanstatsOn = (u8)booleanValue(azArg[1]); + } #ifndef SQLITE_ENABLE_STMT_SCANSTATUS raw_printf(stderr, "Warning: .scanstats not available in this build.\n"); #endif }else{ - raw_printf(stderr, "Usage: .scanstats on|off\n"); + raw_printf(stderr, "Usage: .scanstats on|off|est\n"); rc = 1; } }else - if( c=='s' && strncmp(azArg[0], "schema", n)==0 ){ + if( c=='s' && cli_strncmp(azArg[0], "schema", n)==0 ){ ShellText sSelect; ShellState data; char *zErrMsg = 0; @@ -21184,7 +24948,8 @@ static int do_meta_command(char *zLine, ShellState *p){ }else if( zName==0 ){ zName = azArg[ii]; }else{ - raw_printf(stderr, "Usage: .schema ?--indent? ?--nosys? ?LIKE-PATTERN?\n"); + raw_printf(stderr, + "Usage: .schema ?--indent? ?--nosys? ?LIKE-PATTERN?\n"); rc = 1; goto meta_command_exit; } @@ -21297,15 +25062,15 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( (c=='s' && n==11 && strncmp(azArg[0], "selecttrace", n)==0) - || (c=='t' && n==9 && strncmp(azArg[0], "treetrace", n)==0) + if( (c=='s' && n==11 && cli_strncmp(azArg[0], "selecttrace", n)==0) + || (c=='t' && n==9 && cli_strncmp(azArg[0], "treetrace", n)==0) ){ - unsigned int x = nArg>=2 ? (unsigned int)integerValue(azArg[1]) : 0xffffffff; + unsigned int x = nArg>=2? (unsigned int)integerValue(azArg[1]) : 0xffffffff; sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 1, &x); }else #if defined(SQLITE_ENABLE_SESSION) - if( c=='s' && strncmp(azArg[0],"session",n)==0 && n>=3 ){ + if( c=='s' && cli_strncmp(azArg[0],"session",n)==0 && n>=3 ){ struct AuxDb *pAuxDb = p->pAuxDb; OpenSession *pSession = &pAuxDb->aSession[0]; char **azCmd = &azArg[1]; @@ -21316,7 +25081,7 @@ static int do_meta_command(char *zLine, ShellState *p){ open_db(p, 0); if( nArg>=3 ){ for(iSes=0; iSes<pAuxDb->nSession; iSes++){ - if( strcmp(pAuxDb->aSession[iSes].zName, azArg[1])==0 ) break; + if( cli_strcmp(pAuxDb->aSession[iSes].zName, azArg[1])==0 ) break; } if( iSes<pAuxDb->nSession ){ pSession = &pAuxDb->aSession[iSes]; @@ -21332,7 +25097,7 @@ static int do_meta_command(char *zLine, ShellState *p){ ** Invoke the sqlite3session_attach() interface to attach a particular ** table so that it is never filtered. */ - if( strcmp(azCmd[0],"attach")==0 ){ + if( cli_strcmp(azCmd[0],"attach")==0 ){ if( nCmd!=2 ) goto session_syntax_error; if( pSession->p==0 ){ session_not_open: @@ -21350,7 +25115,9 @@ static int do_meta_command(char *zLine, ShellState *p){ ** .session patchset FILE ** Write a changeset or patchset into a file. The file is overwritten. */ - if( strcmp(azCmd[0],"changeset")==0 || strcmp(azCmd[0],"patchset")==0 ){ + if( cli_strcmp(azCmd[0],"changeset")==0 + || cli_strcmp(azCmd[0],"patchset")==0 + ){ FILE *out = 0; failIfSafeMode(p, "cannot run \".session %s\" in safe mode", azCmd[0]); if( nCmd!=2 ) goto session_syntax_error; @@ -21384,7 +25151,7 @@ static int do_meta_command(char *zLine, ShellState *p){ /* .session close ** Close the identified session */ - if( strcmp(azCmd[0], "close")==0 ){ + if( cli_strcmp(azCmd[0], "close")==0 ){ if( nCmd!=1 ) goto session_syntax_error; if( pAuxDb->nSession ){ session_close(pSession); @@ -21395,7 +25162,7 @@ static int do_meta_command(char *zLine, ShellState *p){ /* .session enable ?BOOLEAN? ** Query or set the enable flag */ - if( strcmp(azCmd[0], "enable")==0 ){ + if( cli_strcmp(azCmd[0], "enable")==0 ){ int ii; if( nCmd>2 ) goto session_syntax_error; ii = nCmd==1 ? -1 : booleanValue(azCmd[1]); @@ -21409,7 +25176,7 @@ static int do_meta_command(char *zLine, ShellState *p){ /* .session filter GLOB .... ** Set a list of GLOB patterns of table names to be excluded. */ - if( strcmp(azCmd[0], "filter")==0 ){ + if( cli_strcmp(azCmd[0], "filter")==0 ){ int ii, nByte; if( nCmd<2 ) goto session_syntax_error; if( pAuxDb->nSession ){ @@ -21434,7 +25201,7 @@ static int do_meta_command(char *zLine, ShellState *p){ /* .session indirect ?BOOLEAN? ** Query or set the indirect flag */ - if( strcmp(azCmd[0], "indirect")==0 ){ + if( cli_strcmp(azCmd[0], "indirect")==0 ){ int ii; if( nCmd>2 ) goto session_syntax_error; ii = nCmd==1 ? -1 : booleanValue(azCmd[1]); @@ -21448,7 +25215,7 @@ static int do_meta_command(char *zLine, ShellState *p){ /* .session isempty ** Determine if the session is empty */ - if( strcmp(azCmd[0], "isempty")==0 ){ + if( cli_strcmp(azCmd[0], "isempty")==0 ){ int ii; if( nCmd!=1 ) goto session_syntax_error; if( pAuxDb->nSession ){ @@ -21461,7 +25228,7 @@ static int do_meta_command(char *zLine, ShellState *p){ /* .session list ** List all currently open sessions */ - if( strcmp(azCmd[0],"list")==0 ){ + if( cli_strcmp(azCmd[0],"list")==0 ){ for(i=0; i<pAuxDb->nSession; i++){ utf8_printf(p->out, "%d %s\n", i, pAuxDb->aSession[i].zName); } @@ -21471,19 +25238,20 @@ static int do_meta_command(char *zLine, ShellState *p){ ** Open a new session called NAME on the attached database DB. ** DB is normally "main". */ - if( strcmp(azCmd[0],"open")==0 ){ + if( cli_strcmp(azCmd[0],"open")==0 ){ char *zName; if( nCmd!=3 ) goto session_syntax_error; zName = azCmd[2]; if( zName[0]==0 ) goto session_syntax_error; for(i=0; i<pAuxDb->nSession; i++){ - if( strcmp(pAuxDb->aSession[i].zName,zName)==0 ){ + if( cli_strcmp(pAuxDb->aSession[i].zName,zName)==0 ){ utf8_printf(stderr, "Session \"%s\" already exists\n", zName); goto meta_command_exit; } } if( pAuxDb->nSession>=ArraySize(pAuxDb->aSession) ){ - raw_printf(stderr, "Maximum of %d sessions\n", ArraySize(pAuxDb->aSession)); + raw_printf(stderr, + "Maximum of %d sessions\n", ArraySize(pAuxDb->aSession)); goto meta_command_exit; } pSession = &pAuxDb->aSession[pAuxDb->nSession]; @@ -21508,15 +25276,15 @@ static int do_meta_command(char *zLine, ShellState *p){ #ifdef SQLITE_DEBUG /* Undocumented commands for internal testing. Subject to change ** without notice. */ - if( c=='s' && n>=10 && strncmp(azArg[0], "selftest-", 9)==0 ){ - if( strncmp(azArg[0]+9, "boolean", n-9)==0 ){ + if( c=='s' && n>=10 && cli_strncmp(azArg[0], "selftest-", 9)==0 ){ + if( cli_strncmp(azArg[0]+9, "boolean", n-9)==0 ){ int i, v; for(i=1; i<nArg; i++){ v = booleanValue(azArg[i]); utf8_printf(p->out, "%s: %d 0x%x\n", azArg[i], v, v); } } - if( strncmp(azArg[0]+9, "integer", n-9)==0 ){ + if( cli_strncmp(azArg[0]+9, "integer", n-9)==0 ){ int i; sqlite3_int64 v; for(i=1; i<nArg; i++){ char zBuf[200]; @@ -21528,7 +25296,7 @@ static int do_meta_command(char *zLine, ShellState *p){ }else #endif - if( c=='s' && n>=4 && strncmp(azArg[0],"selftest",n)==0 ){ + if( c=='s' && n>=4 && cli_strncmp(azArg[0],"selftest",n)==0 ){ int bIsInit = 0; /* True to initialize the SELFTEST table */ int bVerbose = 0; /* Verbose output */ int bSelftestExists; /* True if SELFTEST already exists */ @@ -21542,10 +25310,10 @@ static int do_meta_command(char *zLine, ShellState *p){ for(i=1; i<nArg; i++){ const char *z = azArg[i]; if( z[0]=='-' && z[1]=='-' ) z++; - if( strcmp(z,"-init")==0 ){ + if( cli_strcmp(z,"-init")==0 ){ bIsInit = 1; }else - if( strcmp(z,"-v")==0 ){ + if( cli_strcmp(z,"-v")==0 ){ bVerbose++; }else { @@ -21598,10 +25366,10 @@ static int do_meta_command(char *zLine, ShellState *p){ if( bVerbose>0 ){ printf("%d: %s %s\n", tno, zOp, zSql); } - if( strcmp(zOp,"memo")==0 ){ + if( cli_strcmp(zOp,"memo")==0 ){ utf8_printf(p->out, "%s\n", zSql); }else - if( strcmp(zOp,"run")==0 ){ + if( cli_strcmp(zOp,"run")==0 ){ char *zErrMsg = 0; str.n = 0; str.z[0] = 0; @@ -21615,7 +25383,7 @@ static int do_meta_command(char *zLine, ShellState *p){ rc = 1; utf8_printf(p->out, "%d: error-code-%d: %s\n", tno, rc, zErrMsg); sqlite3_free(zErrMsg); - }else if( strcmp(zAns,str.z)!=0 ){ + }else if( cli_strcmp(zAns,str.z)!=0 ){ nErr++; rc = 1; utf8_printf(p->out, "%d: Expected: [%s]\n", tno, zAns); @@ -21635,7 +25403,7 @@ static int do_meta_command(char *zLine, ShellState *p){ utf8_printf(p->out, "%d errors out of %d tests\n", nErr, nTest); }else - if( c=='s' && strncmp(azArg[0], "separator", n)==0 ){ + if( c=='s' && cli_strncmp(azArg[0], "separator", n)==0 ){ if( nArg<2 || nArg>3 ){ raw_printf(stderr, "Usage: .separator COL ?ROW?\n"); rc = 1; @@ -21650,7 +25418,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( c=='s' && n>=4 && strncmp(azArg[0],"sha3sum",n)==0 ){ + if( c=='s' && n>=4 && cli_strncmp(azArg[0],"sha3sum",n)==0 ){ const char *zLike = 0; /* Which table to checksum. 0 means everything */ int i; /* Loop counter */ int bSchema = 0; /* Also hash the schema */ @@ -21668,15 +25436,15 @@ static int do_meta_command(char *zLine, ShellState *p){ if( z[0]=='-' ){ z++; if( z[0]=='-' ) z++; - if( strcmp(z,"schema")==0 ){ + if( cli_strcmp(z,"schema")==0 ){ bSchema = 1; }else - if( strcmp(z,"sha3-224")==0 || strcmp(z,"sha3-256")==0 - || strcmp(z,"sha3-384")==0 || strcmp(z,"sha3-512")==0 + if( cli_strcmp(z,"sha3-224")==0 || cli_strcmp(z,"sha3-256")==0 + || cli_strcmp(z,"sha3-384")==0 || cli_strcmp(z,"sha3-512")==0 ){ iSize = atoi(&z[5]); }else - if( strcmp(z,"debug")==0 ){ + if( cli_strcmp(z,"debug")==0 ){ bDebug = 1; }else { @@ -21697,12 +25465,12 @@ static int do_meta_command(char *zLine, ShellState *p){ } } if( bSchema ){ - zSql = "SELECT lower(name) FROM sqlite_schema" + zSql = "SELECT lower(name) as tname FROM sqlite_schema" " WHERE type='table' AND coalesce(rootpage,0)>1" " UNION ALL SELECT 'sqlite_schema'" " ORDER BY 1 collate nocase"; }else{ - zSql = "SELECT lower(name) FROM sqlite_schema" + zSql = "SELECT lower(name) as tname FROM sqlite_schema" " WHERE type='table' AND coalesce(rootpage,0)>1" " AND name NOT LIKE 'sqlite_%'" " ORDER BY 1 collate nocase"; @@ -21716,20 +25484,20 @@ static int do_meta_command(char *zLine, ShellState *p){ const char *zTab = (const char*)sqlite3_column_text(pStmt,0); if( zTab==0 ) continue; if( zLike && sqlite3_strlike(zLike, zTab, 0)!=0 ) continue; - if( strncmp(zTab, "sqlite_",7)!=0 ){ + if( cli_strncmp(zTab, "sqlite_",7)!=0 ){ appendText(&sQuery,"SELECT * FROM ", 0); appendText(&sQuery,zTab,'"'); appendText(&sQuery," NOT INDEXED;", 0); - }else if( strcmp(zTab, "sqlite_schema")==0 ){ + }else if( cli_strcmp(zTab, "sqlite_schema")==0 ){ appendText(&sQuery,"SELECT type,name,tbl_name,sql FROM sqlite_schema" " ORDER BY name;", 0); - }else if( strcmp(zTab, "sqlite_sequence")==0 ){ + }else if( cli_strcmp(zTab, "sqlite_sequence")==0 ){ appendText(&sQuery,"SELECT name,seq FROM sqlite_sequence" " ORDER BY name;", 0); - }else if( strcmp(zTab, "sqlite_stat1")==0 ){ + }else if( cli_strcmp(zTab, "sqlite_stat1")==0 ){ appendText(&sQuery,"SELECT tbl,idx,stat FROM sqlite_stat1" " ORDER BY tbl,idx;", 0); - }else if( strcmp(zTab, "sqlite_stat4")==0 ){ + }else if( cli_strcmp(zTab, "sqlite_stat4")==0 ){ appendText(&sQuery, "SELECT * FROM ", 0); appendText(&sQuery, zTab, 0); appendText(&sQuery, " ORDER BY tbl, idx, rowid;\n", 0); @@ -21763,12 +25531,65 @@ static int do_meta_command(char *zLine, ShellState *p){ }else{ shell_exec(p, zSql, 0); } +#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS) && !defined(SQLITE_OMIT_VIRTUALTABLE) + { + int lrc; + char *zRevText = /* Query for reversible to-blob-to-text check */ + "SELECT lower(name) as tname FROM sqlite_schema\n" + "WHERE type='table' AND coalesce(rootpage,0)>1\n" + "AND name NOT LIKE 'sqlite_%%'%s\n" + "ORDER BY 1 collate nocase"; + zRevText = sqlite3_mprintf(zRevText, zLike? " AND name LIKE $tspec" : ""); + zRevText = sqlite3_mprintf( + /* lower-case query is first run, producing upper-case query. */ + "with tabcols as materialized(\n" + "select tname, cname\n" + "from (" + " select ss.tname as tname, ti.name as cname\n" + " from (%z) ss\n inner join pragma_table_info(tname) ti))\n" + "select 'SELECT total(bad_text_count) AS bad_text_count\n" + "FROM ('||group_concat(query, ' UNION ALL ')||')' as btc_query\n" + " from (select 'SELECT COUNT(*) AS bad_text_count\n" + "FROM '||tname||' WHERE '\n" + "||group_concat('CAST(CAST('||cname||' AS BLOB) AS TEXT)<>'||cname\n" + "|| ' AND typeof('||cname||')=''text'' ',\n" + "' OR ') as query, tname from tabcols group by tname)" + , zRevText); + shell_check_oom(zRevText); + if( bDebug ) utf8_printf(p->out, "%s\n", zRevText); + lrc = sqlite3_prepare_v2(p->db, zRevText, -1, &pStmt, 0); + assert(lrc==SQLITE_OK); + if( zLike ) sqlite3_bind_text(pStmt,1,zLike,-1,SQLITE_STATIC); + lrc = SQLITE_ROW==sqlite3_step(pStmt); + if( lrc ){ + const char *zGenQuery = (char*)sqlite3_column_text(pStmt,0); + sqlite3_stmt *pCheckStmt; + lrc = sqlite3_prepare_v2(p->db, zGenQuery, -1, &pCheckStmt, 0); + if( bDebug ) utf8_printf(p->out, "%s\n", zGenQuery); + if( SQLITE_OK==lrc ){ + if( SQLITE_ROW==sqlite3_step(pCheckStmt) ){ + double countIrreversible = sqlite3_column_double(pCheckStmt, 0); + if( countIrreversible>0 ){ + int sz = (int)(countIrreversible + 0.5); + utf8_printf(stderr, + "Digest includes %d invalidly encoded text field%s.\n", + sz, (sz>1)? "s": ""); + } + } + sqlite3_finalize(pCheckStmt); + } + sqlite3_finalize(pStmt); + } + sqlite3_free(zRevText); + } +#endif /* !defined(*_OMIT_SCHEMA_PRAGMAS) && !defined(*_OMIT_VIRTUALTABLE) */ sqlite3_free(zSql); }else -#if !defined(SQLITE_NOHAVE_SYSTEM) && !defined(SQLITE_SHELL_WASM_MODE) +#if !defined(SQLITE_NOHAVE_SYSTEM) && !defined(SQLITE_SHELL_FIDDLE) if( c=='s' - && (strncmp(azArg[0], "shell", n)==0 || strncmp(azArg[0],"system",n)==0) + && (cli_strncmp(azArg[0], "shell", n)==0 + || cli_strncmp(azArg[0],"system",n)==0) ){ char *zCmd; int i, x; @@ -21787,9 +25608,9 @@ static int do_meta_command(char *zLine, ShellState *p){ sqlite3_free(zCmd); if( x ) raw_printf(stderr, "System command returns %d\n", x); }else -#endif /* !defined(SQLITE_NOHAVE_SYSTEM) && !defined(SQLITE_SHELL_WASM_MODE) */ +#endif /* !defined(SQLITE_NOHAVE_SYSTEM) && !defined(SQLITE_SHELL_FIDDLE) */ - if( c=='s' && strncmp(azArg[0], "show", n)==0 ){ + if( c=='s' && cli_strncmp(azArg[0], "show", n)==0 ){ static const char *azBool[] = { "off", "on", "trigger", "full"}; const char *zOut; int i; @@ -21842,11 +25663,11 @@ static int do_meta_command(char *zLine, ShellState *p){ p->pAuxDb->zDbFilename ? p->pAuxDb->zDbFilename : ""); }else - if( c=='s' && strncmp(azArg[0], "stats", n)==0 ){ + if( c=='s' && cli_strncmp(azArg[0], "stats", n)==0 ){ if( nArg==2 ){ - if( strcmp(azArg[1],"stmt")==0 ){ + if( cli_strcmp(azArg[1],"stmt")==0 ){ p->statsOn = 2; - }else if( strcmp(azArg[1],"vmstep")==0 ){ + }else if( cli_strcmp(azArg[1],"vmstep")==0 ){ p->statsOn = 3; }else{ p->statsOn = (u8)booleanValue(azArg[1]); @@ -21859,9 +25680,9 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( (c=='t' && n>1 && strncmp(azArg[0], "tables", n)==0) - || (c=='i' && (strncmp(azArg[0], "indices", n)==0 - || strncmp(azArg[0], "indexes", n)==0) ) + if( (c=='t' && n>1 && cli_strncmp(azArg[0], "tables", n)==0) + || (c=='i' && (cli_strncmp(azArg[0], "indices", n)==0 + || cli_strncmp(azArg[0], "indexes", n)==0) ) ){ sqlite3_stmt *pStmt; char **azResult; @@ -21967,9 +25788,9 @@ static int do_meta_command(char *zLine, ShellState *p){ sqlite3_free(azResult); }else -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE /* Begin redirecting output to the file "testcase-out.txt" */ - if( c=='t' && strcmp(azArg[0],"testcase")==0 ){ + if( c=='t' && cli_strcmp(azArg[0],"testcase")==0 ){ output_reset(p); p->out = output_file_open("testcase-out.txt", 0); if( p->out==0 ){ @@ -21981,38 +25802,38 @@ static int do_meta_command(char *zLine, ShellState *p){ sqlite3_snprintf(sizeof(p->zTestcase), p->zTestcase, "?"); } }else -#endif /* !defined(SQLITE_SHELL_WASM_MODE) */ +#endif /* !defined(SQLITE_SHELL_FIDDLE) */ #ifndef SQLITE_UNTESTABLE - if( c=='t' && n>=8 && strncmp(azArg[0], "testctrl", n)==0 ){ + if( c=='t' && n>=8 && cli_strncmp(azArg[0], "testctrl", n)==0 ){ static const struct { const char *zCtrlName; /* Name of a test-control option */ int ctrlCode; /* Integer code for that option */ int unSafe; /* Not valid for --safe mode */ const char *zUsage; /* Usage notes */ } aCtrl[] = { - { "always", SQLITE_TESTCTRL_ALWAYS, 1, "BOOLEAN" }, - { "assert", SQLITE_TESTCTRL_ASSERT, 1, "BOOLEAN" }, - /*{ "benign_malloc_hooks",SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS,1, "" },*/ - /*{ "bitvec_test", SQLITE_TESTCTRL_BITVEC_TEST, 1, "" },*/ - { "byteorder", SQLITE_TESTCTRL_BYTEORDER, 0, "" }, - { "extra_schema_checks",SQLITE_TESTCTRL_EXTRA_SCHEMA_CHECKS,0,"BOOLEAN" }, - /*{ "fault_install", SQLITE_TESTCTRL_FAULT_INSTALL, 1,"" },*/ - { "imposter", SQLITE_TESTCTRL_IMPOSTER,1,"SCHEMA ON/OFF ROOTPAGE"}, - { "internal_functions", SQLITE_TESTCTRL_INTERNAL_FUNCTIONS,0,"" }, - { "localtime_fault", SQLITE_TESTCTRL_LOCALTIME_FAULT,0,"BOOLEAN" }, - { "never_corrupt", SQLITE_TESTCTRL_NEVER_CORRUPT,1, "BOOLEAN" }, - { "optimizations", SQLITE_TESTCTRL_OPTIMIZATIONS,0,"DISABLE-MASK" }, + {"always", SQLITE_TESTCTRL_ALWAYS, 1, "BOOLEAN" }, + {"assert", SQLITE_TESTCTRL_ASSERT, 1, "BOOLEAN" }, + /*{"benign_malloc_hooks",SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS,1, "" },*/ + /*{"bitvec_test", SQLITE_TESTCTRL_BITVEC_TEST, 1, "" },*/ + {"byteorder", SQLITE_TESTCTRL_BYTEORDER, 0, "" }, + {"extra_schema_checks",SQLITE_TESTCTRL_EXTRA_SCHEMA_CHECKS,0,"BOOLEAN" }, + /*{"fault_install", SQLITE_TESTCTRL_FAULT_INSTALL, 1,"" },*/ + {"imposter", SQLITE_TESTCTRL_IMPOSTER,1,"SCHEMA ON/OFF ROOTPAGE"}, + {"internal_functions", SQLITE_TESTCTRL_INTERNAL_FUNCTIONS,0,"" }, + {"localtime_fault", SQLITE_TESTCTRL_LOCALTIME_FAULT,0,"BOOLEAN" }, + {"never_corrupt", SQLITE_TESTCTRL_NEVER_CORRUPT,1, "BOOLEAN" }, + {"optimizations", SQLITE_TESTCTRL_OPTIMIZATIONS,0,"DISABLE-MASK" }, #ifdef YYCOVERAGE - { "parser_coverage", SQLITE_TESTCTRL_PARSER_COVERAGE,0,"" }, -#endif - { "pending_byte", SQLITE_TESTCTRL_PENDING_BYTE,0, "OFFSET " }, - { "prng_restore", SQLITE_TESTCTRL_PRNG_RESTORE,0, "" }, - { "prng_save", SQLITE_TESTCTRL_PRNG_SAVE, 0, "" }, - { "prng_seed", SQLITE_TESTCTRL_PRNG_SEED, 0, "SEED ?db?" }, - { "seek_count", SQLITE_TESTCTRL_SEEK_COUNT, 0, "" }, - { "sorter_mmap", SQLITE_TESTCTRL_SORTER_MMAP, 0, "NMAX" }, - { "tune", SQLITE_TESTCTRL_TUNE, 1, "ID VALUE" }, + {"parser_coverage", SQLITE_TESTCTRL_PARSER_COVERAGE,0,"" }, +#endif + {"pending_byte", SQLITE_TESTCTRL_PENDING_BYTE,0, "OFFSET " }, + {"prng_restore", SQLITE_TESTCTRL_PRNG_RESTORE,0, "" }, + {"prng_save", SQLITE_TESTCTRL_PRNG_SAVE, 0, "" }, + {"prng_seed", SQLITE_TESTCTRL_PRNG_SEED, 0, "SEED ?db?" }, + {"seek_count", SQLITE_TESTCTRL_SEEK_COUNT, 0, "" }, + {"sorter_mmap", SQLITE_TESTCTRL_SORTER_MMAP, 0, "NMAX" }, + {"tune", SQLITE_TESTCTRL_TUNE, 1, "ID VALUE" }, }; int testctrl = -1; int iCtrl = -1; @@ -22031,7 +25852,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } /* --help lists all test-controls */ - if( strcmp(zCmd,"help")==0 ){ + if( cli_strcmp(zCmd,"help")==0 ){ utf8_printf(p->out, "Available test-controls:\n"); for(i=0; i<ArraySize(aCtrl); i++){ utf8_printf(p->out, " .testctrl %s %s\n", @@ -22045,7 +25866,7 @@ static int do_meta_command(char *zLine, ShellState *p){ ** of the option name, or a numerical value. */ n2 = strlen30(zCmd); for(i=0; i<ArraySize(aCtrl); i++){ - if( strncmp(zCmd, aCtrl[i].zCtrlName, n2)==0 ){ + if( cli_strncmp(zCmd, aCtrl[i].zCtrlName, n2)==0 ){ if( testctrl<0 ){ testctrl = aCtrl[i].ctrlCode; iCtrl = i; @@ -22101,7 +25922,7 @@ static int do_meta_command(char *zLine, ShellState *p){ if( nArg==3 || nArg==4 ){ int ii = (int)integerValue(azArg[2]); sqlite3 *db; - if( ii==0 && strcmp(azArg[2],"random")==0 ){ + if( ii==0 && cli_strcmp(azArg[2],"random")==0 ){ sqlite3_randomness(sizeof(ii),&ii); printf("-- random seed: %d\n", ii); } @@ -22217,12 +26038,12 @@ static int do_meta_command(char *zLine, ShellState *p){ }else #endif /* !defined(SQLITE_UNTESTABLE) */ - if( c=='t' && n>4 && strncmp(azArg[0], "timeout", n)==0 ){ + if( c=='t' && n>4 && cli_strncmp(azArg[0], "timeout", n)==0 ){ open_db(p, 0); sqlite3_busy_timeout(p->db, nArg>=2 ? (int)integerValue(azArg[1]) : 0); }else - if( c=='t' && n>=5 && strncmp(azArg[0], "timer", n)==0 ){ + if( c=='t' && n>=5 && cli_strncmp(azArg[0], "timer", n)==0 ){ if( nArg==2 ){ enableTimer = booleanValue(azArg[1]); if( enableTimer && !HAS_TIMER ){ @@ -22236,7 +26057,7 @@ static int do_meta_command(char *zLine, ShellState *p){ }else #ifndef SQLITE_OMIT_TRACE - if( c=='t' && strncmp(azArg[0], "trace", n)==0 ){ + if( c=='t' && cli_strncmp(azArg[0], "trace", n)==0 ){ int mType = 0; int jj; open_db(p, 0); @@ -22273,7 +26094,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else{ output_file_close(p->traceOut); - p->traceOut = output_file_open(azArg[1], 0); + p->traceOut = output_file_open(z, 0); } } if( p->traceOut==0 ){ @@ -22286,7 +26107,7 @@ static int do_meta_command(char *zLine, ShellState *p){ #endif /* !defined(SQLITE_OMIT_TRACE) */ #if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_VIRTUALTABLE) - if( c=='u' && strncmp(azArg[0], "unmodule", n)==0 ){ + if( c=='u' && cli_strncmp(azArg[0], "unmodule", n)==0 ){ int ii; int lenOpt; char *zOpt; @@ -22299,7 +26120,7 @@ static int do_meta_command(char *zLine, ShellState *p){ zOpt = azArg[1]; if( zOpt[0]=='-' && zOpt[1]=='-' && zOpt[2]!=0 ) zOpt++; lenOpt = (int)strlen(zOpt); - if( lenOpt>=3 && strncmp(zOpt, "-allexcept",lenOpt)==0 ){ + if( lenOpt>=3 && cli_strncmp(zOpt, "-allexcept",lenOpt)==0 ){ assert( azArg[nArg]==0 ); sqlite3_drop_modules(p->db, nArg>2 ? (const char**)(azArg+2) : 0); }else{ @@ -22311,14 +26132,14 @@ static int do_meta_command(char *zLine, ShellState *p){ #endif #if SQLITE_USER_AUTHENTICATION - if( c=='u' && strncmp(azArg[0], "user", n)==0 ){ + if( c=='u' && cli_strncmp(azArg[0], "user", n)==0 ){ if( nArg<2 ){ raw_printf(stderr, "Usage: .user SUBCOMMAND ...\n"); rc = 1; goto meta_command_exit; } open_db(p, 0); - if( strcmp(azArg[1],"login")==0 ){ + if( cli_strcmp(azArg[1],"login")==0 ){ if( nArg!=4 ){ raw_printf(stderr, "Usage: .user login USER PASSWORD\n"); rc = 1; @@ -22330,7 +26151,7 @@ static int do_meta_command(char *zLine, ShellState *p){ utf8_printf(stderr, "Authentication failed for user %s\n", azArg[2]); rc = 1; } - }else if( strcmp(azArg[1],"add")==0 ){ + }else if( cli_strcmp(azArg[1],"add")==0 ){ if( nArg!=5 ){ raw_printf(stderr, "Usage: .user add USER PASSWORD ISADMIN\n"); rc = 1; @@ -22342,7 +26163,7 @@ static int do_meta_command(char *zLine, ShellState *p){ raw_printf(stderr, "User-Add failed: %d\n", rc); rc = 1; } - }else if( strcmp(azArg[1],"edit")==0 ){ + }else if( cli_strcmp(azArg[1],"edit")==0 ){ if( nArg!=5 ){ raw_printf(stderr, "Usage: .user edit USER PASSWORD ISADMIN\n"); rc = 1; @@ -22354,7 +26175,7 @@ static int do_meta_command(char *zLine, ShellState *p){ raw_printf(stderr, "User-Edit failed: %d\n", rc); rc = 1; } - }else if( strcmp(azArg[1],"delete")==0 ){ + }else if( cli_strcmp(azArg[1],"delete")==0 ){ if( nArg!=3 ){ raw_printf(stderr, "Usage: .user delete USER\n"); rc = 1; @@ -22373,7 +26194,7 @@ static int do_meta_command(char *zLine, ShellState *p){ }else #endif /* SQLITE_USER_AUTHENTICATION */ - if( c=='v' && strncmp(azArg[0], "version", n)==0 ){ + if( c=='v' && cli_strncmp(azArg[0], "version", n)==0 ){ utf8_printf(p->out, "SQLite %s %s\n" /*extra-version-info*/, sqlite3_libversion(), sqlite3_sourceid()); #if SQLITE_HAVE_ZLIB @@ -22392,7 +26213,7 @@ static int do_meta_command(char *zLine, ShellState *p){ #endif }else - if( c=='v' && strncmp(azArg[0], "vfsinfo", n)==0 ){ + if( c=='v' && cli_strncmp(azArg[0], "vfsinfo", n)==0 ){ const char *zDbName = nArg==2 ? azArg[1] : "main"; sqlite3_vfs *pVfs = 0; if( p->db ){ @@ -22406,7 +26227,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( c=='v' && strncmp(azArg[0], "vfslist", n)==0 ){ + if( c=='v' && cli_strncmp(azArg[0], "vfslist", n)==0 ){ sqlite3_vfs *pVfs; sqlite3_vfs *pCurrent = 0; if( p->db ){ @@ -22424,7 +26245,7 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( c=='v' && strncmp(azArg[0], "vfsname", n)==0 ){ + if( c=='v' && cli_strncmp(azArg[0], "vfsname", n)==0 ){ const char *zDbName = nArg==2 ? azArg[1] : "main"; char *zVfsName = 0; if( p->db ){ @@ -22436,12 +26257,12 @@ static int do_meta_command(char *zLine, ShellState *p){ } }else - if( c=='w' && strncmp(azArg[0], "wheretrace", n)==0 ){ - unsigned int x = nArg>=2 ? (unsigned int)integerValue(azArg[1]) : 0xffffffff; + if( c=='w' && cli_strncmp(azArg[0], "wheretrace", n)==0 ){ + unsigned int x = nArg>=2? (unsigned int)integerValue(azArg[1]) : 0xffffffff; sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 3, &x); }else - if( c=='w' && strncmp(azArg[0], "width", n)==0 ){ + if( c=='w' && cli_strncmp(azArg[0], "width", n)==0 ){ int j; assert( nArg<=ArraySize(azArg) ); p->nWidth = nArg-1; @@ -22489,7 +26310,8 @@ typedef enum { ** The scan is resumable for subsequent lines when prior ** return values are passed as the 2nd argument. */ -static QuickScanState quickscan(char *zLine, QuickScanState qss){ +static QuickScanState quickscan(char *zLine, QuickScanState qss, + SCAN_TRACKER_REFTYPE pst){ char cin; char cWait = (char)qss; /* intentional narrowing loss */ if( cWait==0 ){ @@ -22513,17 +26335,25 @@ static QuickScanState quickscan(char *zLine, QuickScanState qss){ if( *zLine=='*' ){ ++zLine; cWait = '*'; + CONTINUE_PROMPT_AWAITS(pst, "/*"); qss = QSS_SETV(qss, cWait); goto TermScan; } break; case '[': cin = ']'; - /* fall thru */ + deliberate_fall_through; case '`': case '\'': case '"': cWait = cin; qss = QSS_HasDark | cWait; + CONTINUE_PROMPT_AWAITC(pst, cin); goto TermScan; + case '(': + CONTINUE_PAREN_INCR(pst, 1); + break; + case ')': + CONTINUE_PAREN_INCR(pst, -1); + break; default: break; } @@ -22539,16 +26369,19 @@ static QuickScanState quickscan(char *zLine, QuickScanState qss){ continue; ++zLine; cWait = 0; + CONTINUE_PROMPT_AWAITC(pst, 0); qss = QSS_SETV(qss, 0); goto PlainScan; case '`': case '\'': case '"': if(*zLine==cWait){ + /* Swallow doubled end-delimiter.*/ ++zLine; continue; } - /* fall thru */ + deliberate_fall_through; case ']': cWait = 0; + CONTINUE_PROMPT_AWAITC(pst, 0); qss = QSS_SETV(qss, 0); goto PlainScan; default: assert(0); @@ -22572,17 +26405,15 @@ static int line_is_command_terminator(char *zLine){ zLine += 2; /* SQL Server */ else return 0; - return quickscan(zLine, QSS_Start)==QSS_Start; + return quickscan(zLine, QSS_Start, 0)==QSS_Start; } /* -** We need a default sqlite3_complete() implementation to use in case -** the shell is compiled with SQLITE_OMIT_COMPLETE. The default assumes -** any arbitrary text is a complete SQL statement. This is not very -** user-friendly, but it does seem to work. +** The CLI needs a working sqlite3_complete() to work properly. So error +** out of the build if compiling with SQLITE_OMIT_COMPLETE. */ #ifdef SQLITE_OMIT_COMPLETE -#define sqlite3_complete(x) 1 +# error the CLI application is imcompatable with SQLITE_OMIT_COMPLETE. #endif /* @@ -22619,10 +26450,10 @@ static int runOneSqlLine(ShellState *p, char *zSql, FILE *in, int startline){ if( zErrMsg==0 ){ zErrorType = "Error"; zErrorTail = sqlite3_errmsg(p->db); - }else if( strncmp(zErrMsg, "in prepare, ",12)==0 ){ + }else if( cli_strncmp(zErrMsg, "in prepare, ",12)==0 ){ zErrorType = "Parse error"; zErrorTail = &zErrMsg[12]; - }else if( strncmp(zErrMsg, "stepping, ", 10)==0 ){ + }else if( cli_strncmp(zErrMsg, "stepping, ", 10)==0 ){ zErrorType = "Runtime error"; zErrorTail = &zErrMsg[10]; }else{ @@ -22653,18 +26484,18 @@ static void echo_group_input(ShellState *p, const char *zDo){ if( ShellHasFlag(p, SHFLG_Echo) ) utf8_printf(p->out, "%s\n", zDo); } -#ifdef SQLITE_SHELL_WASM_MODE +#ifdef SQLITE_SHELL_FIDDLE /* -** Alternate one_input_line() impl for wasm mode. This is not in the primary impl -** because we need the global shellState and cannot access it from that function -** without moving lots of code around (creating a larger/messier diff). +** Alternate one_input_line() impl for wasm mode. This is not in the primary +** impl because we need the global shellState and cannot access it from that +** function without moving lots of code around (creating a larger/messier diff). */ static char *one_input_line(FILE *in, char *zPrior, int isContinuation){ /* Parse the next line from shellState.wasm.zInput. */ const char *zBegin = shellState.wasm.zPos; const char *z = zBegin; char *zLine = 0; - int nZ = 0; + i64 nZ = 0; UNUSED_PARAMETER(in); UNUSED_PARAMETER(isContinuation); @@ -22680,11 +26511,11 @@ static char *one_input_line(FILE *in, char *zPrior, int isContinuation){ shellState.wasm.zPos = z; zLine = realloc(zPrior, nZ+1); shell_check_oom(zLine); - memcpy(zLine, zBegin, (size_t)nZ); + memcpy(zLine, zBegin, nZ); zLine[nZ] = 0; return zLine; } -#endif /* SQLITE_SHELL_WASM_MODE */ +#endif /* SQLITE_SHELL_FIDDLE */ /* ** Read input from *in and process it. If *in==0 then input @@ -22698,12 +26529,12 @@ static char *one_input_line(FILE *in, char *zPrior, int isContinuation){ static int process_input(ShellState *p){ char *zLine = 0; /* A single input line */ char *zSql = 0; /* Accumulated SQL text */ - int nLine; /* Length of current line */ - int nSql = 0; /* Bytes of zSql[] used */ - int nAlloc = 0; /* Allocated zSql[] space */ + i64 nLine; /* Length of current line */ + i64 nSql = 0; /* Bytes of zSql[] used */ + i64 nAlloc = 0; /* Allocated zSql[] space */ int rc; /* Error code */ int errCnt = 0; /* Number of errors seen */ - int startline = 0; /* Line number for start of current input */ + i64 startline = 0; /* Line number for start of current input */ QuickScanState qss = QSS_Start; /* Accumulated line status (so far) */ if( p->inputNesting==MAX_INPUT_NESTING ){ @@ -22714,6 +26545,7 @@ static int process_input(ShellState *p){ } ++p->inputNesting; p->lineno = 0; + CONTINUE_PROMPT_RESET; while( errCnt==0 || !bail_on_error || (p->in==0 && stdin_is_interactive) ){ fflush(p->out); zLine = one_input_line(p->in, zLine, nSql>0); @@ -22732,7 +26564,7 @@ static int process_input(ShellState *p){ && line_is_complete(zSql, nSql) ){ memcpy(zLine,";",2); } - qss = quickscan(zLine, qss); + qss = quickscan(zLine, qss, CONTINUE_PROMPT_PSTATE); if( QSS_PLAINWHITE(qss) && nSql==0 ){ /* Just swallow single-line whitespace */ echo_group_input(p, zLine); @@ -22740,6 +26572,7 @@ static int process_input(ShellState *p){ continue; } if( zLine && (zLine[0]=='.' || zLine[0]=='#') && nSql==0 ){ + CONTINUE_PROMPT_RESET; echo_group_input(p, zLine); if( zLine[0]=='.' ){ rc = do_meta_command(zLine, p); @@ -22753,7 +26586,7 @@ static int process_input(ShellState *p){ continue; } /* No single-line dispositions remain; accumulate line(s). */ - nLine = strlen30(zLine); + nLine = strlen(zLine); if( nSql+nLine+2>=nAlloc ){ /* Grow buffer by half-again increments when big. */ nAlloc = nSql+(nSql>>1)+nLine+100; @@ -22761,7 +26594,7 @@ static int process_input(ShellState *p){ shell_check_oom(zSql); } if( nSql==0 ){ - int i; + i64 i; for(i=0; zLine[i] && IsSpace(zLine[i]); i++){} assert( nAlloc>0 && zSql!=0 ); memcpy(zSql, zLine+i, nLine+1-i); @@ -22775,6 +26608,7 @@ static int process_input(ShellState *p){ if( nSql && QSS_SEMITERM(qss) && sqlite3_complete(zSql) ){ echo_group_input(p, zSql); errCnt += runOneSqlLine(p, zSql, p->in, startline); + CONTINUE_PROMPT_RESET; nSql = 0; if( p->outCount ){ output_reset(p); @@ -22794,6 +26628,7 @@ static int process_input(ShellState *p){ /* This may be incomplete. Let the SQL parser deal with that. */ echo_group_input(p, zSql); errCnt += runOneSqlLine(p, zSql, p->in, startline); + CONTINUE_PROMPT_RESET; } free(zSql); free(zLine); @@ -22815,7 +26650,7 @@ static char *find_home_dir(int clearFlag){ if( home_dir ) return home_dir; #if !defined(_WIN32) && !defined(WIN32) && !defined(_WIN32_WCE) \ - && !defined(__RTP__) && !defined(_WRS_KERNEL) + && !defined(__RTP__) && !defined(_WRS_KERNEL) && !defined(SQLITE_WASI) { struct passwd *pwent; uid_t uid = getuid(); @@ -22861,7 +26696,7 @@ static char *find_home_dir(int clearFlag){ #endif /* !_WIN32_WCE */ if( home_dir ){ - int n = strlen30(home_dir) + 1; + i64 n = strlen(home_dir) + 1; char *z = malloc( n ); if( z ) memcpy(z, home_dir, n); home_dir = z; @@ -22871,8 +26706,42 @@ static char *find_home_dir(int clearFlag){ } /* +** On non-Windows platforms, look for $XDG_CONFIG_HOME. +** If ${XDG_CONFIG_HOME}/sqlite3/sqliterc is found, return +** the path to it, else return 0. The result is cached for +** subsequent calls. +*/ +static const char *find_xdg_config(void){ +#if defined(_WIN32) || defined(WIN32) || defined(_WIN32_WCE) \ + || defined(__RTP__) || defined(_WRS_KERNEL) + return 0; +#else + static int alreadyTried = 0; + static char *zConfig = 0; + const char *zXdgHome; + + if( alreadyTried!=0 ){ + return zConfig; + } + alreadyTried = 1; + zXdgHome = getenv("XDG_CONFIG_HOME"); + if( zXdgHome==0 ){ + return 0; + } + zConfig = sqlite3_mprintf("%s/sqlite3/sqliterc", zXdgHome); + shell_check_oom(zConfig); + if( access(zConfig,0)!=0 ){ + sqlite3_free(zConfig); + zConfig = 0; + } + return zConfig; +#endif +} + +/* ** Read input from the file given by sqliterc_override. Or if that -** parameter is NULL, take input from ~/.sqliterc +** parameter is NULL, take input from the first of find_xdg_config() +** or ~/.sqliterc which is found. ** ** Returns the number of errors. */ @@ -22886,7 +26755,10 @@ static void process_sqliterc( FILE *inSaved = p->in; int savedLineno = p->lineno; - if (sqliterc == NULL) { + if( sqliterc == NULL ){ + sqliterc = find_xdg_config(); + } + if( sqliterc == NULL ){ home_dir = find_home_dir(0); if( home_dir==0 ){ raw_printf(stderr, "-- warning: cannot find home directory;" @@ -23067,7 +26939,7 @@ static char *cmdline_option_value(int argc, char **argv, int i){ # endif #endif -#ifdef SQLITE_SHELL_WASM_MODE +#ifdef SQLITE_SHELL_FIDDLE # define main fiddle_main #endif @@ -23081,7 +26953,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ sqlite3_int64 mem_main_enter = sqlite3_memory_used(); #endif char *zErrMsg = 0; -#ifdef SQLITE_SHELL_WASM_MODE +#ifdef SQLITE_SHELL_FIDDLE # define data shellState #else ShellState data; @@ -23101,9 +26973,10 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ setBinaryMode(stdin, 0); setvbuf(stderr, 0, _IONBF, 0); /* Make sure stderr is unbuffered */ -#ifdef SQLITE_SHELL_WASM_MODE +#ifdef SQLITE_SHELL_FIDDLE stdin_is_interactive = 0; stdout_is_console = 1; + data.wasm.zDefaultDbName = "/fiddle.sqlite3"; #else stdin_is_interactive = isatty(0); stdout_is_console = isatty(1); @@ -23131,7 +27004,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ #endif #if USE_SYSTEM_SQLITE+0!=1 - if( strncmp(sqlite3_sourceid(),SQLITE_SOURCE_ID,60)!=0 ){ + if( cli_strncmp(sqlite3_sourceid(),SQLITE_SOURCE_ID,60)!=0 ){ utf8_printf(stderr, "SQLite header and source version mismatch\n%s\n%s\n", sqlite3_sourceid(), SQLITE_SOURCE_ID); exit(1); @@ -23153,9 +27026,9 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ argv = argvToFree + argc; for(i=0; i<argc; i++){ char *z = sqlite3_win32_unicode_to_utf8(wargv[i]); - int n; + i64 n; shell_check_oom(z); - n = (int)strlen(z); + n = strlen(z); argv[i] = malloc( n+1 ); shell_check_oom(argv[i]); memcpy(argv[i], z, n+1); @@ -23212,21 +27085,21 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ } } if( z[1]=='-' ) z++; - if( strcmp(z,"-separator")==0 - || strcmp(z,"-nullvalue")==0 - || strcmp(z,"-newline")==0 - || strcmp(z,"-cmd")==0 + if( cli_strcmp(z,"-separator")==0 + || cli_strcmp(z,"-nullvalue")==0 + || cli_strcmp(z,"-newline")==0 + || cli_strcmp(z,"-cmd")==0 ){ (void)cmdline_option_value(argc, argv, ++i); - }else if( strcmp(z,"-init")==0 ){ + }else if( cli_strcmp(z,"-init")==0 ){ zInitFile = cmdline_option_value(argc, argv, ++i); - }else if( strcmp(z,"-batch")==0 ){ + }else if( cli_strcmp(z,"-batch")==0 ){ /* Need to check for batch mode here to so we can avoid printing ** informational messages (like from process_sqliterc) before ** we do the actual processing of arguments later in a second pass. */ stdin_is_interactive = 0; - }else if( strcmp(z,"-heap")==0 ){ + }else if( cli_strcmp(z,"-heap")==0 ){ #if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5) const char *zSize; sqlite3_int64 szHeap; @@ -23238,7 +27111,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ #else (void)cmdline_option_value(argc, argv, ++i); #endif - }else if( strcmp(z,"-pagecache")==0 ){ + }else if( cli_strcmp(z,"-pagecache")==0 ){ sqlite3_int64 n, sz; sz = integerValue(cmdline_option_value(argc,argv,++i)); if( sz>70000 ) sz = 70000; @@ -23250,7 +27123,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ sqlite3_config(SQLITE_CONFIG_PAGECACHE, (n>0 && sz>0) ? malloc(n*sz) : 0, sz, n); data.shellFlgs |= SHFLG_Pagecache; - }else if( strcmp(z,"-lookaside")==0 ){ + }else if( cli_strcmp(z,"-lookaside")==0 ){ int n, sz; sz = (int)integerValue(cmdline_option_value(argc,argv,++i)); if( sz<0 ) sz = 0; @@ -23258,7 +27131,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ if( n<0 ) n = 0; sqlite3_config(SQLITE_CONFIG_LOOKASIDE, sz, n); if( sz*n==0 ) data.shellFlgs &= ~SHFLG_Lookaside; - }else if( strcmp(z,"-threadsafe")==0 ){ + }else if( cli_strcmp(z,"-threadsafe")==0 ){ int n; n = (int)integerValue(cmdline_option_value(argc,argv,++i)); switch( n ){ @@ -23267,7 +27140,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ default: sqlite3_config(SQLITE_CONFIG_SERIALIZED); break; } #ifdef SQLITE_ENABLE_VFSTRACE - }else if( strcmp(z,"-vfstrace")==0 ){ + }else if( cli_strcmp(z,"-vfstrace")==0 ){ extern int vfstrace_register( const char *zTraceName, const char *zOldVfsName, @@ -23278,50 +27151,50 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ vfstrace_register("trace",0,(int(*)(const char*,void*))fputs,stderr,1); #endif #ifdef SQLITE_ENABLE_MULTIPLEX - }else if( strcmp(z,"-multiplex")==0 ){ + }else if( cli_strcmp(z,"-multiplex")==0 ){ extern int sqlite3_multiple_initialize(const char*,int); sqlite3_multiplex_initialize(0, 1); #endif - }else if( strcmp(z,"-mmap")==0 ){ + }else if( cli_strcmp(z,"-mmap")==0 ){ sqlite3_int64 sz = integerValue(cmdline_option_value(argc,argv,++i)); sqlite3_config(SQLITE_CONFIG_MMAP_SIZE, sz, sz); #ifdef SQLITE_ENABLE_SORTER_REFERENCES - }else if( strcmp(z,"-sorterref")==0 ){ + }else if( cli_strcmp(z,"-sorterref")==0 ){ sqlite3_int64 sz = integerValue(cmdline_option_value(argc,argv,++i)); sqlite3_config(SQLITE_CONFIG_SORTERREF_SIZE, (int)sz); #endif - }else if( strcmp(z,"-vfs")==0 ){ + }else if( cli_strcmp(z,"-vfs")==0 ){ zVfs = cmdline_option_value(argc, argv, ++i); #ifdef SQLITE_HAVE_ZLIB - }else if( strcmp(z,"-zip")==0 ){ + }else if( cli_strcmp(z,"-zip")==0 ){ data.openMode = SHELL_OPEN_ZIPFILE; #endif - }else if( strcmp(z,"-append")==0 ){ + }else if( cli_strcmp(z,"-append")==0 ){ data.openMode = SHELL_OPEN_APPENDVFS; #ifndef SQLITE_OMIT_DESERIALIZE - }else if( strcmp(z,"-deserialize")==0 ){ + }else if( cli_strcmp(z,"-deserialize")==0 ){ data.openMode = SHELL_OPEN_DESERIALIZE; - }else if( strcmp(z,"-maxsize")==0 && i+1<argc ){ + }else if( cli_strcmp(z,"-maxsize")==0 && i+1<argc ){ data.szMax = integerValue(argv[++i]); #endif - }else if( strcmp(z,"-readonly")==0 ){ + }else if( cli_strcmp(z,"-readonly")==0 ){ data.openMode = SHELL_OPEN_READONLY; - }else if( strcmp(z,"-nofollow")==0 ){ + }else if( cli_strcmp(z,"-nofollow")==0 ){ data.openFlags = SQLITE_OPEN_NOFOLLOW; #if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB) - }else if( strncmp(z, "-A",2)==0 ){ + }else if( cli_strncmp(z, "-A",2)==0 ){ /* All remaining command-line arguments are passed to the ".archive" ** command, so ignore them */ break; #endif - }else if( strcmp(z, "-memtrace")==0 ){ + }else if( cli_strcmp(z, "-memtrace")==0 ){ sqlite3MemTraceActivate(stderr); - }else if( strcmp(z,"-bail")==0 ){ + }else if( cli_strcmp(z,"-bail")==0 ){ bail_on_error = 1; - }else if( strcmp(z,"-nonce")==0 ){ + }else if( cli_strcmp(z,"-nonce")==0 ){ free(data.zNonce); data.zNonce = strdup(argv[++i]); - }else if( strcmp(z,"-safe")==0 ){ + }else if( cli_strcmp(z,"-safe")==0 ){ /* no-op - catch this on the second pass */ } } @@ -23348,7 +27221,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ if( pVfs ){ sqlite3_vfs_register(pVfs, 1); }else{ - utf8_printf(stderr, "no such VFS: \"%s\"\n", argv[i]); + utf8_printf(stderr, "no such VFS: \"%s\"\n", zVfs); exit(1); } } @@ -23363,7 +27236,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ #endif } data.out = stdout; -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE sqlite3_appendvfs_init(0,0,0); #endif @@ -23391,127 +27264,127 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ char *z = argv[i]; if( z[0]!='-' ) continue; if( z[1]=='-' ){ z++; } - if( strcmp(z,"-init")==0 ){ + if( cli_strcmp(z,"-init")==0 ){ i++; - }else if( strcmp(z,"-html")==0 ){ + }else if( cli_strcmp(z,"-html")==0 ){ data.mode = MODE_Html; - }else if( strcmp(z,"-list")==0 ){ + }else if( cli_strcmp(z,"-list")==0 ){ data.mode = MODE_List; - }else if( strcmp(z,"-quote")==0 ){ + }else if( cli_strcmp(z,"-quote")==0 ){ data.mode = MODE_Quote; sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator, SEP_Comma); sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator, SEP_Row); - }else if( strcmp(z,"-line")==0 ){ + }else if( cli_strcmp(z,"-line")==0 ){ data.mode = MODE_Line; - }else if( strcmp(z,"-column")==0 ){ + }else if( cli_strcmp(z,"-column")==0 ){ data.mode = MODE_Column; - }else if( strcmp(z,"-json")==0 ){ + }else if( cli_strcmp(z,"-json")==0 ){ data.mode = MODE_Json; - }else if( strcmp(z,"-markdown")==0 ){ + }else if( cli_strcmp(z,"-markdown")==0 ){ data.mode = MODE_Markdown; - }else if( strcmp(z,"-table")==0 ){ + }else if( cli_strcmp(z,"-table")==0 ){ data.mode = MODE_Table; - }else if( strcmp(z,"-box")==0 ){ + }else if( cli_strcmp(z,"-box")==0 ){ data.mode = MODE_Box; - }else if( strcmp(z,"-csv")==0 ){ + }else if( cli_strcmp(z,"-csv")==0 ){ data.mode = MODE_Csv; memcpy(data.colSeparator,",",2); #ifdef SQLITE_HAVE_ZLIB - }else if( strcmp(z,"-zip")==0 ){ + }else if( cli_strcmp(z,"-zip")==0 ){ data.openMode = SHELL_OPEN_ZIPFILE; #endif - }else if( strcmp(z,"-append")==0 ){ + }else if( cli_strcmp(z,"-append")==0 ){ data.openMode = SHELL_OPEN_APPENDVFS; #ifndef SQLITE_OMIT_DESERIALIZE - }else if( strcmp(z,"-deserialize")==0 ){ + }else if( cli_strcmp(z,"-deserialize")==0 ){ data.openMode = SHELL_OPEN_DESERIALIZE; - }else if( strcmp(z,"-maxsize")==0 && i+1<argc ){ + }else if( cli_strcmp(z,"-maxsize")==0 && i+1<argc ){ data.szMax = integerValue(argv[++i]); #endif - }else if( strcmp(z,"-readonly")==0 ){ + }else if( cli_strcmp(z,"-readonly")==0 ){ data.openMode = SHELL_OPEN_READONLY; - }else if( strcmp(z,"-nofollow")==0 ){ + }else if( cli_strcmp(z,"-nofollow")==0 ){ data.openFlags |= SQLITE_OPEN_NOFOLLOW; - }else if( strcmp(z,"-ascii")==0 ){ + }else if( cli_strcmp(z,"-ascii")==0 ){ data.mode = MODE_Ascii; - sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator, SEP_Unit); - sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator, SEP_Record); - }else if( strcmp(z,"-tabs")==0 ){ + sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator,SEP_Unit); + sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator,SEP_Record); + }else if( cli_strcmp(z,"-tabs")==0 ){ data.mode = MODE_List; - sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator, SEP_Tab); - sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator, SEP_Row); - }else if( strcmp(z,"-separator")==0 ){ + sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator,SEP_Tab); + sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator,SEP_Row); + }else if( cli_strcmp(z,"-separator")==0 ){ sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator, "%s",cmdline_option_value(argc,argv,++i)); - }else if( strcmp(z,"-newline")==0 ){ + }else if( cli_strcmp(z,"-newline")==0 ){ sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator, "%s",cmdline_option_value(argc,argv,++i)); - }else if( strcmp(z,"-nullvalue")==0 ){ + }else if( cli_strcmp(z,"-nullvalue")==0 ){ sqlite3_snprintf(sizeof(data.nullValue), data.nullValue, "%s",cmdline_option_value(argc,argv,++i)); - }else if( strcmp(z,"-header")==0 ){ + }else if( cli_strcmp(z,"-header")==0 ){ data.showHeader = 1; ShellSetFlag(&data, SHFLG_HeaderSet); - }else if( strcmp(z,"-noheader")==0 ){ + }else if( cli_strcmp(z,"-noheader")==0 ){ data.showHeader = 0; ShellSetFlag(&data, SHFLG_HeaderSet); - }else if( strcmp(z,"-echo")==0 ){ + }else if( cli_strcmp(z,"-echo")==0 ){ ShellSetFlag(&data, SHFLG_Echo); - }else if( strcmp(z,"-eqp")==0 ){ + }else if( cli_strcmp(z,"-eqp")==0 ){ data.autoEQP = AUTOEQP_on; - }else if( strcmp(z,"-eqpfull")==0 ){ + }else if( cli_strcmp(z,"-eqpfull")==0 ){ data.autoEQP = AUTOEQP_full; - }else if( strcmp(z,"-stats")==0 ){ + }else if( cli_strcmp(z,"-stats")==0 ){ data.statsOn = 1; - }else if( strcmp(z,"-scanstats")==0 ){ + }else if( cli_strcmp(z,"-scanstats")==0 ){ data.scanstatsOn = 1; - }else if( strcmp(z,"-backslash")==0 ){ + }else if( cli_strcmp(z,"-backslash")==0 ){ /* Undocumented command-line option: -backslash ** Causes C-style backslash escapes to be evaluated in SQL statements ** prior to sending the SQL into SQLite. Useful for injecting ** crazy bytes in the middle of SQL statements for testing and debugging. */ ShellSetFlag(&data, SHFLG_Backslash); - }else if( strcmp(z,"-bail")==0 ){ + }else if( cli_strcmp(z,"-bail")==0 ){ /* No-op. The bail_on_error flag should already be set. */ - }else if( strcmp(z,"-version")==0 ){ + }else if( cli_strcmp(z,"-version")==0 ){ printf("%s %s\n", sqlite3_libversion(), sqlite3_sourceid()); return 0; - }else if( strcmp(z,"-interactive")==0 ){ + }else if( cli_strcmp(z,"-interactive")==0 ){ stdin_is_interactive = 1; - }else if( strcmp(z,"-batch")==0 ){ + }else if( cli_strcmp(z,"-batch")==0 ){ stdin_is_interactive = 0; - }else if( strcmp(z,"-heap")==0 ){ + }else if( cli_strcmp(z,"-heap")==0 ){ i++; - }else if( strcmp(z,"-pagecache")==0 ){ + }else if( cli_strcmp(z,"-pagecache")==0 ){ i+=2; - }else if( strcmp(z,"-lookaside")==0 ){ + }else if( cli_strcmp(z,"-lookaside")==0 ){ i+=2; - }else if( strcmp(z,"-threadsafe")==0 ){ + }else if( cli_strcmp(z,"-threadsafe")==0 ){ i+=2; - }else if( strcmp(z,"-nonce")==0 ){ + }else if( cli_strcmp(z,"-nonce")==0 ){ i += 2; - }else if( strcmp(z,"-mmap")==0 ){ + }else if( cli_strcmp(z,"-mmap")==0 ){ i++; - }else if( strcmp(z,"-memtrace")==0 ){ + }else if( cli_strcmp(z,"-memtrace")==0 ){ i++; #ifdef SQLITE_ENABLE_SORTER_REFERENCES - }else if( strcmp(z,"-sorterref")==0 ){ + }else if( cli_strcmp(z,"-sorterref")==0 ){ i++; #endif - }else if( strcmp(z,"-vfs")==0 ){ + }else if( cli_strcmp(z,"-vfs")==0 ){ i++; #ifdef SQLITE_ENABLE_VFSTRACE - }else if( strcmp(z,"-vfstrace")==0 ){ + }else if( cli_strcmp(z,"-vfstrace")==0 ){ i++; #endif #ifdef SQLITE_ENABLE_MULTIPLEX - }else if( strcmp(z,"-multiplex")==0 ){ + }else if( cli_strcmp(z,"-multiplex")==0 ){ i++; #endif - }else if( strcmp(z,"-help")==0 ){ + }else if( cli_strcmp(z,"-help")==0 ){ usage(1); - }else if( strcmp(z,"-cmd")==0 ){ + }else if( cli_strcmp(z,"-cmd")==0 ){ /* Run commands that follow -cmd first and separately from commands ** that simply appear on the command-line. This seems goofy. It would ** be better if all commands ran in the order that they appear. But @@ -23533,7 +27406,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ } } #if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB) - }else if( strncmp(z, "-A", 2)==0 ){ + }else if( cli_strncmp(z, "-A", 2)==0 ){ if( nCmd>0 ){ utf8_printf(stderr, "Error: cannot mix regular SQL or dot-commands" " with \"%s\"\n", z); @@ -23549,7 +27422,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ readStdin = 0; break; #endif - }else if( strcmp(z,"-safe")==0 ){ + }else if( cli_strcmp(z,"-safe")==0 ){ data.bSafeMode = data.bSafeModePersist = 1; }else{ utf8_printf(stderr,"%s: Error: unknown option: %s\n", Argv0, z); @@ -23631,7 +27504,7 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ rc = process_input(&data); } } -#ifndef SQLITE_SHELL_WASM_MODE +#ifndef SQLITE_SHELL_FIDDLE /* In WASM mode we have to leave the db state in place so that ** client code can "push" SQL into it after this call returns. */ free(azCmd); @@ -23666,38 +27539,38 @@ int SQLITE_CDECL wmain(int argc, wchar_t **wargv){ (unsigned int)(sqlite3_memory_used()-mem_main_enter)); } #endif -#endif /* !SQLITE_SHELL_WASM_MODE */ +#endif /* !SQLITE_SHELL_FIDDLE */ return rc; } -#ifdef SQLITE_SHELL_WASM_MODE +#ifdef SQLITE_SHELL_FIDDLE /* Only for emcc experimentation purposes. */ int fiddle_experiment(int a,int b){ - return a + b; + return a + b; } -/* Only for emcc experimentation purposes. - - Define this function in JS using: - - emcc ... --js-library somefile.js - - containing: +/* +** Returns a pointer to the current DB handle. +*/ +sqlite3 * fiddle_db_handle(){ + return globalDb; +} -mergeInto(LibraryManager.library, { - my_foo: function(){ - console.debug("my_foo()",arguments); - } -}); +/* +** Returns a pointer to the given DB name's VFS. If zDbName is 0 then +** "main" is assumed. Returns 0 if no db with the given name is +** open. */ -/*extern void my_foo(sqlite3 *);*/ -/* Only for emcc experimentation purposes. */ -sqlite3 * fiddle_the_db(){ - printf("fiddle_the_db(%p)\n", (const void*)globalDb); - /*my_foo(globalDb);*/ - return globalDb; +sqlite3_vfs * fiddle_db_vfs(const char *zDbName){ + sqlite3_vfs * pVfs = 0; + if(globalDb){ + sqlite3_file_control(globalDb, zDbName ? zDbName : "main", + SQLITE_FCNTL_VFS_POINTER, &pVfs); + } + return pVfs; } + /* Only for emcc experimentation purposes. */ sqlite3 * fiddle_db_arg(sqlite3 *arg){ printf("fiddle_db_arg(%p)\n", (const void*)arg); @@ -23711,7 +27584,7 @@ sqlite3 * fiddle_db_arg(sqlite3 *arg){ ** portable enough to make real use of. */ void fiddle_interrupt(void){ - if(globalDb) sqlite3_interrupt(globalDb); + if( globalDb ) sqlite3_interrupt(globalDb); } /* @@ -23725,71 +27598,72 @@ const char * fiddle_db_filename(const char * zDbName){ } /* -** Closes, unlinks, and reopens the db using its current filename (or -** the default if the db is currently closed). It is assumed, for -** purposes of the fiddle build, that the file is in a transient -** virtual filesystem within the browser. +** Completely wipes out the contents of the currently-opened database +** but leaves its storage intact for reuse. */ void fiddle_reset_db(void){ - char *zFilename = 0; - if(0==globalDb){ - shellState.pAuxDb->zDbFilename = "/fiddle.sqlite3"; - }else{ - zFilename = - sqlite3_mprintf("%s", sqlite3_db_filename(globalDb, "main")); - shell_check_oom(zFilename); - close_db(globalDb); - shellDeleteFile(zFilename); - shellState.db = 0; - shellState.pAuxDb->zDbFilename = zFilename; + if( globalDb ){ + int rc = sqlite3_db_config(globalDb, SQLITE_DBCONFIG_RESET_DATABASE, 1, 0); + if( 0==rc ) rc = sqlite3_exec(globalDb, "VACUUM", 0, 0, 0); + sqlite3_db_config(globalDb, SQLITE_DBCONFIG_RESET_DATABASE, 0, 0); + } +} + +/* +** Uses the current database's VFS xRead to stream the db file's +** contents out to the given callback. The callback gets a single +** chunk of size n (its 2nd argument) on each call and must return 0 +** on success, non-0 on error. This function returns 0 on success, +** SQLITE_NOTFOUND if no db is open, or propagates any other non-0 +** code from the callback. Note that this is not thread-friendly: it +** expects that it will be the only thread reading the db file and +** takes no measures to ensure that is the case. +*/ +int fiddle_export_db( int (*xCallback)(unsigned const char *zOut, int n) ){ + sqlite3_int64 nSize = 0; + sqlite3_int64 nPos = 0; + sqlite3_file * pFile = 0; + unsigned char buf[1024 * 8]; + int nBuf = (int)sizeof(buf); + int rc = shellState.db + ? sqlite3_file_control(shellState.db, "main", + SQLITE_FCNTL_FILE_POINTER, &pFile) + : SQLITE_NOTFOUND; + if( rc ) return rc; + rc = pFile->pMethods->xFileSize(pFile, &nSize); + if( rc ) return rc; + if(nSize % nBuf){ + /* DB size is not an even multiple of the buffer size. Reduce + ** buffer size so that we do not unduly inflate the db size when + ** exporting. */ + if(0 == nSize % 4096) nBuf = 4096; + else if(0 == nSize % 2048) nBuf = 2048; + else if(0 == nSize % 1024) nBuf = 1024; + else nBuf = 512; + } + for( ; 0==rc && nPos<nSize; nPos += nBuf ){ + rc = pFile->pMethods->xRead(pFile, buf, nBuf, nPos); + if(SQLITE_IOERR_SHORT_READ == rc){ + rc = (nPos + nBuf) < nSize ? rc : 0/*assume EOF*/; + } + if( 0==rc ) rc = xCallback(buf, nBuf); } - open_db(&shellState, 0); - sqlite3_free(zFilename); + return rc; } /* -** Trivial exportable function for emscripten. Needs to be exported using: -** -** emcc ..flags... -sEXPORTED_FUNCTIONS=_fiddle_exec -sEXPORTED_RUNTIME_METHODS=ccall,cwrap -** -** (Note the underscore before the function name.) It processes zSql -** as if it were input to the sqlite3 shell and redirects all output -** to the wasm binding. +** Trivial exportable function for emscripten. It processes zSql as if +** it were input to the sqlite3 shell and redirects all output to the +** wasm binding. fiddle_main() must have been called before this +** is called, or results are undefined. */ void fiddle_exec(const char * zSql){ - static int once = 0; - int rc = 0; - if(!once){ - /* Simulate an argv array for main() */ - static char * argv[] = {"fiddle", - "-bail", - "-safe"}; - rc = fiddle_main((int)(sizeof(argv)/sizeof(argv[0])), argv); - once = rc ? -1 : 1; - memset(&shellState.wasm, 0, sizeof(shellState.wasm)); - printf( - "SQLite version %s %.19s\n" /*extra-version-info*/, - sqlite3_libversion(), sqlite3_sourceid() - ); - puts("WASM shell"); - puts("Enter \".help\" for usage hints."); - if(once>0){ - fiddle_reset_db(); - } - if(shellState.db){ - printf("Connected to %s.\n", fiddle_db_filename(NULL)); - }else{ - fprintf(stderr,"ERROR initializing db!\n"); - return; - } - } - if(once<0){ - puts("DB init failed. Not executing SQL."); - }else if(zSql && *zSql){ + if(zSql && *zSql){ + if('.'==*zSql) puts(zSql); shellState.wasm.zInput = zSql; shellState.wasm.zPos = zSql; process_input(&shellState); - memset(&shellState.wasm, 0, sizeof(shellState.wasm)); + shellState.wasm.zInput = shellState.wasm.zPos = 0; } } -#endif /* SQLITE_SHELL_WASM_MODE */ +#endif /* SQLITE_SHELL_FIDDLE */ |