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Diffstat (limited to 'vms/vms.c')
| -rw-r--r-- | vms/vms.c | 1007 |
1 files changed, 1007 insertions, 0 deletions
diff --git a/vms/vms.c b/vms/vms.c new file mode 100644 index 0000000..1b194c6 --- /dev/null +++ b/vms/vms.c @@ -0,0 +1,1007 @@ +/* + Copyright (c) 1990-2007 Info-ZIP. All rights reserved. + + See the accompanying file LICENSE, version 2007-Mar-4 or later + (the contents of which are also included in zip.h) for terms of use. + If, for some reason, all these files are missing, the Info-ZIP license + also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html +*/ +/* + * vms.c (zip) by Igor Mandrichenko Version 2.2-2 + * + * Revision history: + * ... + * 2.2-2 18-jan-1993 I.Mandrichenko + * vms_stat() added - version of stat() that handles special + * case when end-of-file-block == 0 + * + * 3.0 11-oct-2004 SMS + * It would be nice to know why vms_stat() is needed. If EOF can't + * be trusted for a zero-length file, why trust it for any file? + * Anyway, I removed the (int) cast on ->st_size, which may now be + * bigger than an int, just in case this code ever does get used. + * (A true zero-length file should still report zero length, even + * after the long fight with RMS.) + * Moved the VMS_PK_EXTRA test(s) into VMS_IM.C and VMS_PK.C to + * allow more general automatic dependency generation. + */ + +#ifdef VMS /* For VMS only ! */ + +#define NO_ZIPUP_H /* Prevent full inclusion of vms/zipup.h. */ + +#include "zip.h" +#include "zipup.h" /* Only partial. */ + +#include <stdio.h> +#include <string.h> + +#include <jpidef.h> +#include <fab.h> /* Needed only in old environments. */ +#include <nam.h> /* Needed only in old environments. */ +#include <starlet.h> +#include <ssdef.h> +#include <stsdef.h> + +/* On VAX, define Goofy VAX Type-Cast to obviate /standard = vaxc. + Otherwise, lame system headers on VAX cause compiler warnings. + (GNU C may define vax but not __VAX.) +*/ +#ifdef vax +# define __VAX 1 +#endif /* def vax */ + +#ifdef __VAX +# define GVTC (unsigned int) +#else /* def __VAX */ +# define GVTC +#endif /* def __VAX */ + + +#ifdef UTIL + +/* For utilities, include only vms.h, as either of the vms_XX.c files + * would do. + */ + +# include "vms.h" + +#else /* not UTIL */ + +/* Include the `VMS attributes' preserving file-io code. We distinguish + between two incompatible flavours of storing VMS attributes in the + Zip archive: + a) The "PKware" style follows the extra field specification for + PKware's VMS Zip. + b) The "IM (Info-ZIP)" flavour was defined from scratch by + Igor Mandrichenko. This version has be used in official Info-ZIP + releases for several years and is known to work well. + */ + +/* Note that only one of these #include directives will include any + * active code, depending on VMS_PK_EXTRA. Both are included here (and + * tested there) to allow more general automatic dependency generation. + */ + +#include "vms_pk.c" +#include "vms_im.c" + +#endif /* not UTIL [else] */ + +#ifndef ERR +#define ERR(x) (((x)&1)==0) +#endif + +#ifndef NULL +#define NULL (void*)(0L) +#endif + +int vms_stat( char *file, stat_t *s) +{ + int status; + int staterr; + struct FAB fab; + struct NAM_STRUCT nam; + struct XABFHC fhc; + + /* + * In simplest case when stat() returns "ok" and file size is + * nonzero or this is directory, finish with this + */ + + if( (staterr=stat(file,s)) == 0 + && ( s->st_size >= 0 /* Size - ok */ + || (s->st_mode & S_IFREG) == 0 /* Not a plain file */ + ) + ) return staterr; + + /* + * Get here to handle the special case when stat() returns + * invalid file size. Use RMS to compute the size. + * When EOF block is zero, set file size to its physical size. + * One more case to get here is when this is remote file accessed + * via DECnet. + */ + + fab = cc$rms_fab; + nam = CC_RMS_NAM; + fhc = cc$rms_xabfhc; + fab.FAB_NAM = &nam; + fab.fab$l_xab = (char*)(&fhc); + +#ifdef NAML$C_MAXRSS + + fab.fab$l_dna = (char *) -1; /* Using NAML for default name. */ + fab.fab$l_fna = (char *) -1; /* Using NAML for file name. */ + +#endif /* def NAML$C_MAXRSS */ + + FAB_OR_NAML( fab, nam).FAB_OR_NAML_FNA = file; + FAB_OR_NAML( fab, nam).FAB_OR_NAML_FNS = strlen( file); + + fab.fab$b_fac = FAB$M_GET; + + status = sys$open(&fab); + fab.fab$l_xab = (char*)0L; + sys$close(&fab); + + if( !ERR(status) ) + { + if( fhc.xab$l_ebk > 0 ) + s->st_size = ( fhc.xab$l_ebk-1 ) * 512 + fhc.xab$w_ffb; + else if( fab.fab$b_org == FAB$C_IDX + || fab.fab$b_org == FAB$C_REL + || fab.fab$b_org == FAB$C_HSH ) + /* Special case, when ebk=0: save entire allocated space */ + s->st_size = fhc.xab$l_hbk * 512; + else + s->st_size = fhc.xab$w_ffb; + return 0; /* stat() success code */ + } + else + return status; +} + + +/* + * 2007-01-29 SMS. + * + * VMS Status Code Summary (See STSDEF.H for details.) + * + * Bits: 31:28 27:16 15:3 2:0 + * Field: Control Facility Message Severity + * + * In the Control field, bits 31:29 are reserved. Bit 28 inhibits + * printing the message. In the Facility field, bit 27 means + * customer-defined (not HP-assigned, like us). In the Message field, + * bit 15 means facility-specific (which our messages are). The + * Severity codes are 0 = Warning, 1 = Success, 2 = Error, 3 = Info, + * 4 = Severe (fatal). + * + * Previous versions of Info-ZIP programs used a generic ("chosen (by + * experimentation)") Control+Facility code of 0x7FFF, which included + * some reserved control bits, the inhibit-printing bit, and the + * customer-defined bit. + * + * HP has now assigned official Facility names and corresponding + * Facility codes for the Info-ZIP products: + * + * Facility Name Facility Code + * IZ_UNZIP 1954 = 0x7A2 + * IZ_ZIP 1955 = 0x7A3 + * + * Now, unless the CTL_FAC_IZ_ZIP macro is defined at build-time, we + * will use the official Facility code. + * + */ + +/* Official HP-assigned Info-ZIP Zip Facility code. */ +#define FAC_IZ_ZIP 1955 /* 0x7A3 */ + +#ifndef CTL_FAC_IZ_ZIP + /* + * Default is inhibit-printing with the official Facility code. + */ +# define CTL_FAC_IZ_ZIP ((0x1 << 12)| FAC_IZ_ZIP) +# define MSG_FAC_SPEC 0x8000 /* Facility-specific code. */ +#else /* ndef CTL_FAC_IZ_ZIP */ + /* Use the user-supplied Control+Facility code for err or warn. */ +# define OLD_STATUS +# ifndef MSG_FAC_SPEC /* Old default is not Facility-specific. */ +# define MSG_FAC_SPEC 0x0 /* Facility-specific code. Or 0x8000. */ +# endif /* ndef MSG_FAC_SPEC */ +#endif /* ndef CTL_FAC_IZ_ZIP [else] */ + + +/* Return an intelligent status/severity code. */ + +void vms_exit(e) + int e; +{ + { +#ifndef OLD_STATUS + + /* + * Exit with code comprising Control, Facility, (facility-specific) + * Message, and Severity. + */ + exit( (CTL_FAC_IZ_ZIP << 16) | /* Facility */ + MSG_FAC_SPEC | /* Facility-specific */ + (e << 4) | /* Message code */ + (ziperrors[ e].severity & 0x07) /* Severity */ + ); + +#else /* ndef OLD_STATUS */ + + /* 2007-01-17 SMS. + * Defining OLD_STATUS provides the same behavior as in Zip versions + * before an official VMS Facility code had been assigned, which + * means that Success (ZE_OK) gives a status value of 1 (SS$_NORMAL) + * with no Facility code, while any error or warning gives a status + * value which includes a Facility code. (Curiously, under the old + * scheme, message codes were left-shifted by 4 instead of 3, + * resulting in all-even message codes.) I don't like this, but I + * was afraid to remove it, as someone, somewhere may be depending + * on it. Define CTL_FAC_IZ_ZIP as 0x7FFF to get the old behavior. + * Define only OLD_STATUS to get the old behavior for Success + * (ZE_OK), but using the official HP-assigned Facility code for an + * error or warning. Define MSG_FAC_SPEC to get the desired + * behavior. + * + * Exit with simple SS$_NORMAL for ZE_OK. Otherwise, exit with code + * comprising Control, Facility, Message, and Severity. + */ + exit( + (e == ZE_OK) ? SS$_NORMAL : /* Success (others below) */ + ((CTL_FAC_IZ_ZIP << 16) | /* Facility */ + MSG_FAC_SPEC | /* Facility-specific (?) */ + (e << 4) | /* Message code */ + (ziperrors[ e].severity & 0x07) /* Severity */ + ) + ); + +#endif /* ndef OLD_STATUS */ + } +} + + +/******************************/ +/* Function version_local() */ +/******************************/ + +void version_local() +{ + static ZCONST char CompiledWith[] = "Compiled with %s%s for %s%s%s%s.\n\n"; +#ifdef VMS_VERSION + char *chrp1; + char *chrp2; + char buf[40]; + char vms_vers[ 16]; + int ver_maj; +#endif +#ifdef __DECC_VER + char buf2[40]; + int vtyp; +#endif + +#ifdef VMS_VERSION + /* Truncate the version string at the first (trailing) space. */ + strncpy( vms_vers, VMS_VERSION, sizeof( vms_vers)); + chrp1 = strchr( vms_vers, ' '); + if (chrp1 != NULL) + *chrp1 = '\0'; + + /* Determine the major version number. */ + ver_maj = 0; + chrp1 = strchr( &vms_vers[ 1], '.'); + for (chrp2 = &vms_vers[ 1]; + chrp2 < chrp1; + ver_maj = ver_maj* 10+ *(chrp2++)- '0'); + +#endif /* def VMS_VERSION */ + +/* DEC C in ANSI mode does not like "#ifdef MACRO" inside another + macro when MACRO is equated to a value (by "#define MACRO 1"). */ + + printf(CompiledWith, + +#ifdef __GNUC__ + "gcc ", __VERSION__, +#else +# if defined(DECC) || defined(__DECC) || defined (__DECC__) + "DEC C", +# ifdef __DECC_VER + (sprintf(buf2, " %c%d.%d-%03d", + ((vtyp = (__DECC_VER / 10000) % 10) == 6 ? 'T' : + (vtyp == 8 ? 'S' : 'V')), + __DECC_VER / 10000000, + (__DECC_VER % 10000000) / 100000, __DECC_VER % 1000), buf2), +# else + "", +# endif +# else +# ifdef VAXC + "VAX C", "", +# else + "unknown compiler", "", +# endif +# endif +#endif + +#ifdef VMS_VERSION +# if defined( __alpha) + "OpenVMS", + (sprintf( buf, " (%s Alpha)", vms_vers), buf), +# elif defined( __ia64) /* defined( __alpha) */ + "OpenVMS", + (sprintf( buf, " (%s IA64)", vms_vers), buf), +# else /* defined( __alpha) */ + (ver_maj >= 6) ? "OpenVMS" : "VMS", + (sprintf( buf, " (%s VAX)", vms_vers), buf), +# endif /* defined( __alpha) */ +#else + "VMS", + "", +#endif /* def VMS_VERSION */ + +#ifdef __DATE__ + " on ", __DATE__ +#else + "", "" +#endif + ); + +} /* end function version_local() */ + +/* 2004-10-08 SMS. + * + * tempname() for VMS. + * + * Generate a temporary Zip archive file name, near the actual + * destination Zip archive file, or at "tempath", if specified. + * + * Using sys$parse() is probably more work than it's worth, but it + * should also be ODS5-safe. + * + * Note that the generic method using tmpnam() (in FILEIO.C) + * produces "ziXXXXXX", where "XXXXXX" is the low six digits of the + * decimal representation of the process ID. This method produces + * "ZIxxxxxxxx", where "xxxxxxxx" is the (whole) eight-digit + * hexadecimal representation of the process ID. More important, it + * actually uses the directory part of the argument or "tempath". + */ + + +char *tempname( char *zip) +/* char *zip; */ /* Path name of Zip archive. */ +{ + char *temp_name; /* Return value. */ + int sts; /* System service status. */ + + static int pid; /* Process ID. */ + static int pid_len; /* Returned size of process ID. */ + + struct /* Item list for GETJPIW. */ + { + short buf_len; /* Buffer length. */ + short itm_cod; /* Item code. */ + int *buf; /* Buffer address. */ + int *ret_len; /* Returned length. */ + int term; /* Item list terminator. */ + } jpi_itm_lst = { sizeof( pid), JPI$_PID, &pid, &pid_len }; + + /* ZI<UNIQUE> name storage. */ + static char zip_tmp_nam[ 16] = "ZI<unique>.;"; + + struct FAB fab; /* FAB structure. */ + struct NAM_STRUCT nam; /* NAM[L] structure. */ + + char exp_str[ NAM_MAXRSS+ 1]; /* Expanded name storage. */ + +#ifdef VMS_UNIQUE_TEMP_BY_TIME + + /* Use alternate time-based scheme to generate a unique temporary name. */ + sprintf( &zip_tmp_nam[ 2], "%08X", time( NULL)); + +#else /* def VMS_UNIQUE_TEMP_BY_TIME */ + + /* Use the process ID to generate a unique temporary name. */ + sts = sys$getjpiw( 0, 0, 0, &jpi_itm_lst, 0, 0, 0); + sprintf( &zip_tmp_nam[ 2], "%08X", pid); + +#endif /* def VMS_UNIQUE_TEMP_BY_TIME */ + + /* Smoosh the unique temporary name against the actual Zip archive + name (or "tempath") to create the full temporary path name. + (Truncate it at the file type to remove any file type.) + */ + if (tempath != NULL) /* Use "tempath", if it's been specified. */ + zip = tempath; + + /* Initialize the FAB and NAM[L], and link the NAM[L] to the FAB. */ + fab = cc$rms_fab; + nam = CC_RMS_NAM; + fab.FAB_NAM = &nam; + + /* Point the FAB/NAM[L] fields to the actual name and default name. */ + +#ifdef NAML$C_MAXRSS + + fab.fab$l_dna = (char *) -1; /* Using NAML for default name. */ + fab.fab$l_fna = (char *) -1; /* Using NAML for file name. */ + +#endif /* def NAML$C_MAXRSS */ + + /* Default name = Zip archive name. */ + FAB_OR_NAML( fab, nam).FAB_OR_NAML_DNA = zip; + FAB_OR_NAML( fab, nam).FAB_OR_NAML_DNS = strlen( zip); + + /* File name = "ZI<unique>,;". */ + FAB_OR_NAML( fab, nam).FAB_OR_NAML_FNA = zip_tmp_nam; + FAB_OR_NAML( fab, nam).FAB_OR_NAML_FNS = strlen( zip_tmp_nam); + + nam.NAM_ESA = exp_str; /* Expanded name (result) storage. */ + nam.NAM_ESS = NAM_MAXRSS; /* Size of expanded name storage. */ + + nam.NAM_NOP = NAM_M_SYNCHK; /* Syntax-only analysis. */ + + temp_name = NULL; /* Prepare for failure (unlikely). */ + sts = sys$parse( &fab, 0, 0); /* Parse the name(s). */ + + if ((sts& STS$M_SEVERITY) == STS$M_SUCCESS) + { + /* Overlay any resulting file type (typically ".ZIP") with none. */ + strcpy( nam.NAM_L_TYPE, ".;"); + + /* Allocate temp name storage (as caller expects), and copy the + (truncated) temp name into the new location. + */ + temp_name = malloc( strlen( nam.NAM_ESA)+ 1); + + if (temp_name != NULL) + { + strcpy( temp_name, nam.NAM_ESA); + } + } + return temp_name; +} /* tempname() for VMS. */ + + +/* 2005-02-17 SMS. + * + * ziptyp() for VMS. + * + * Generate a real Zip archive file name (exact, if it exists), using + * a default file name. + * + * 2005-02-17 SMS. Moved to here from [-]ZIPFILE.C, to segregate + * better the RMS stuff. + * + * Before 2005-02-17, if sys$parse() failed, ziptyp() returned a null + * string ("&zero", where "static char zero = '\0';"). This + * typically caused Zip to proceed, but then the final rename() of + * the temporary archive would (silently) fail (null file name, after + * all), leaving only the temporary archive file, and providing no + * warning message to the victim. Now, when sys$parse() fails, + * ziptyp() returns the original string, so a later open() fails, and + * a relatively informative message is provided. (A VMS-specific + * message could also be provided here, if desired.) + * + * 2005-09-16 SMS. + * Changed name parsing in ziptyp() to solve a problem with a + * search-list logical name device-directory spec for the zipfile. + * Previously, when the zipfile did not exist (so sys$search() + * failed), the expanded name was used, but as it was + * post-sys$search(), it was based on the _last_ member of the search + * list instead of the first. Now, the expanded name from the + * original sys$parse() (pre-sys$search()) is retained, and it is + * used if sys$search() fails. This name is based on the first + * member of the search list, as a user might expect. + */ + +/* Default Zip archive file spec. */ +#define DEF_DEVDIRNAM "SYS$DISK:[].zip" + +char *ziptyp( char *s) +{ + int status; + int exp_len; + struct FAB fab; + struct NAM_STRUCT nam; + char result[ NAM_MAXRSS+ 1]; + char exp[ NAM_MAXRSS+ 1]; + char *p; + + fab = cc$rms_fab; /* Initialize FAB. */ + nam = CC_RMS_NAM; /* Initialize NAM[L]. */ + fab.FAB_NAM = &nam; /* FAB -> NAM[L] */ + +#ifdef NAML$C_MAXRSS + + fab.fab$l_dna =(char *) -1; /* Using NAML for default name. */ + fab.fab$l_fna = (char *) -1; /* Using NAML for file name. */ + +#endif /* def NAML$C_MAXRSS */ + + /* Argument file name and length. */ + FAB_OR_NAML( fab, nam).FAB_OR_NAML_FNA = s; + FAB_OR_NAML( fab, nam).FAB_OR_NAML_FNS = strlen( s); + + /* Default file spec and length. */ + FAB_OR_NAML( fab, nam).FAB_OR_NAML_DNA = DEF_DEVDIRNAM; + FAB_OR_NAML( fab, nam).FAB_OR_NAML_DNS = sizeof( DEF_DEVDIRNAM)- 1; + + nam.NAM_ESA = exp; /* Expanded name, */ + nam.NAM_ESS = NAM_MAXRSS; /* storage size. */ + nam.NAM_RSA = result; /* Resultant name, */ + nam.NAM_RSS = NAM_MAXRSS; /* storage size. */ + + status = sys$parse(&fab); + if ((status & 1) == 0) + { + /* Invalid file name. Return (re-allocated) original, and hope + for a later error message. + */ + if ((p = malloc( strlen( s)+ 1)) != NULL ) + { + strcpy( p, s); + } + return p; + } + + /* Save expanded name length from sys$parse(). */ + exp_len = nam.NAM_ESL; + + /* Leave expanded name as-is, in case of search failure. */ + nam.NAM_ESA = NULL; /* Expanded name, */ + nam.NAM_ESS = 0; /* storage size. */ + + status = sys$search(&fab); + if (status & 1) + { /* Zip file exists. Use resultant (complete, exact) name. */ + if ((p = malloc( nam.NAM_RSL+ 1)) != NULL ) + { + result[ nam.NAM_RSL] = '\0'; + strcpy( p, result); + } + } + else + { /* New Zip file. Use pre-search expanded name. */ + if ((p = malloc( exp_len+ 1)) != NULL ) + { + exp[ exp_len] = '\0'; + strcpy( p, exp); + } + } + return p; +} /* ziptyp() for VMS. */ + + +/* 2005-12-30 SMS. + * + * vms_file_version(). + * + * Return the ";version" part of a VMS file specification. + */ + +char *vms_file_version( char *s) +{ + int status; + struct FAB fab; + struct NAM_STRUCT nam; + char *p; + + static char exp[ NAM_MAXRSS+ 1]; /* Expanded name storage. */ + + + fab = cc$rms_fab; /* Initialize FAB. */ + nam = CC_RMS_NAM; /* Initialize NAM[L]. */ + fab.FAB_NAM = &nam; /* FAB -> NAM[L] */ + +#ifdef NAML$C_MAXRSS + + fab.fab$l_dna =(char *) -1; /* Using NAML for default name. */ + fab.fab$l_fna = (char *) -1; /* Using NAML for file name. */ + +#endif /* def NAML$C_MAXRSS */ + + /* Argument file name and length. */ + FAB_OR_NAML( fab, nam).FAB_OR_NAML_FNA = s; + FAB_OR_NAML( fab, nam).FAB_OR_NAML_FNS = strlen( s); + + nam.NAM_ESA = exp; /* Expanded name, */ + nam.NAM_ESS = NAM_MAXRSS; /* storage size. */ + + nam.NAM_NOP = NAM_M_SYNCHK; /* Syntax-only analysis. */ + + status = sys$parse(&fab); + + if ((status & 1) == 0) + { + /* Invalid file name. Return "". */ + exp[ 0] = '\0'; + p = exp; + } + else + { + /* Success. NUL-terminate, and return a pointer to the ";" in + the expanded name storage buffer. + */ + p = nam.NAM_L_VER; + p[ nam.NAM_B_VER] = '\0'; + } + return p; +} /* vms_file_version(). */ + + +/* 2004-11-23 SMS. + * + * get_rms_defaults(). + * + * Get user-specified values from (DCL) SET RMS_DEFAULT. FAB/RAB + * items of particular interest are: + * + * fab$w_deq default extension quantity (blocks) (write). + * rab$b_mbc multi-block count. + * rab$b_mbf multi-buffer count (used with rah and wbh). + */ + +#define DIAG_FLAG (verbose >= 2) + +/* Default RMS parameter values. */ + +#define RMS_DEQ_DEFAULT 16384 /* About 1/4 the max (65535 blocks). */ +#define RMS_MBC_DEFAULT 127 /* The max, */ +#define RMS_MBF_DEFAULT 2 /* Enough to enable rah and wbh. */ + +/* GETJPI item descriptor structure. */ +typedef struct + { + short buf_len; + short itm_cod; + void *buf; + int *ret_len; + } jpi_item_t; + +/* Durable storage */ + +static int rms_defaults_known = 0; + +/* JPI item buffers. */ +static unsigned short rms_ext; +static char rms_mbc; +static unsigned char rms_mbf; + +/* Active RMS item values. */ +unsigned short rms_ext_active; +char rms_mbc_active; +unsigned char rms_mbf_active; + +/* GETJPI item lengths. */ +static int rms_ext_len; /* Should come back 2. */ +static int rms_mbc_len; /* Should come back 1. */ +static int rms_mbf_len; /* Should come back 1. */ + +/* Desperation attempts to define unknown macros. Probably doomed. + * If these get used, expect sys$getjpiw() to return %x00000014 = + * %SYSTEM-F-BADPARAM, bad parameter value. + * They keep compilers with old header files quiet, though. + */ +#ifndef JPI$_RMS_EXTEND_SIZE +# define JPI$_RMS_EXTEND_SIZE 542 +#endif /* ndef JPI$_RMS_EXTEND_SIZE */ + +#ifndef JPI$_RMS_DFMBC +# define JPI$_RMS_DFMBC 535 +#endif /* ndef JPI$_RMS_DFMBC */ + +#ifndef JPI$_RMS_DFMBFSDK +# define JPI$_RMS_DFMBFSDK 536 +#endif /* ndef JPI$_RMS_DFMBFSDK */ + +/* GETJPI item descriptor set. */ + +struct + { + jpi_item_t rms_ext_itm; + jpi_item_t rms_mbc_itm; + jpi_item_t rms_mbf_itm; + int term; + } jpi_itm_lst = + { { 2, JPI$_RMS_EXTEND_SIZE, &rms_ext, &rms_ext_len }, + { 1, JPI$_RMS_DFMBC, &rms_mbc, &rms_mbc_len }, + { 1, JPI$_RMS_DFMBFSDK, &rms_mbf, &rms_mbf_len }, + 0 + }; + +int get_rms_defaults() +{ +int sts; + +/* Get process RMS_DEFAULT values. */ + +sts = sys$getjpiw( 0, 0, 0, &jpi_itm_lst, 0, 0, 0); +if ((sts& STS$M_SEVERITY) != STS$M_SUCCESS) + { + /* Failed. Don't try again. */ + rms_defaults_known = -1; + } +else + { + /* Fine, but don't come back. */ + rms_defaults_known = 1; + } + +/* Limit the active values according to the RMS_DEFAULT values. */ + +if (rms_defaults_known > 0) + { + /* Set the default values. */ + + rms_ext_active = RMS_DEQ_DEFAULT; + rms_mbc_active = RMS_MBC_DEFAULT; + rms_mbf_active = RMS_MBF_DEFAULT; + + /* Default extend quantity. Use the user value, if set. */ + if (rms_ext > 0) + { + rms_ext_active = rms_ext; + } + + /* Default multi-block count. Use the user value, if set. */ + if (rms_mbc > 0) + { + rms_mbc_active = rms_mbc; + } + + /* Default multi-buffer count. Use the user value, if set. */ + if (rms_mbf > 0) + { + rms_mbf_active = rms_mbf; + } + } + +if (DIAG_FLAG) + { + fprintf( stderr, + "Get RMS defaults. getjpi sts = %%x%08x.\n", + sts); + + if (rms_defaults_known > 0) + { + fprintf( stderr, + " Default: deq = %6d, mbc = %3d, mbf = %3d.\n", + rms_ext, rms_mbc, rms_mbf); + } + } +return sts; +} + +#ifdef __DECC + +/* 2004-11-23 SMS. + * + * acc_cb(), access callback function for DEC C zfopen(). + * + * Set some RMS FAB/RAB items, with consideration of user-specified + * values from (DCL) SET RMS_DEFAULT. Items of particular interest are: + * + * fab$w_deq default extension quantity (blocks). + * rab$b_mbc multi-block count. + * rab$b_mbf multi-buffer count (used with rah and wbh). + * + * See also the FOP* macros in OSDEP.H. Currently, no notice is + * taken of the caller-ID value, but options could be set differently + * for read versus write access. (I assume that specifying fab$w_deq, + * for example, for a read-only file has no ill effects.) + */ + +/* Global storage. */ + +int fopm_id = FOPM_ID; /* Callback id storage, modify. */ +int fopr_id = FOPR_ID; /* Callback id storage, read. */ +int fopw_id = FOPW_ID; /* Callback id storage, write. */ + +int fhow_id = FHOW_ID; /* Callback id storage, in read. */ + +/* acc_cb() */ + +int acc_cb( int *id_arg, struct FAB *fab, struct RAB *rab) +{ +int sts; + +/* Get process RMS_DEFAULT values, if not already done. */ +if (rms_defaults_known == 0) + { + get_rms_defaults(); + } + +/* If RMS_DEFAULT (and adjusted active) values are available, then set + * the FAB/RAB parameters. If RMS_DEFAULT values are not available, + * suffer with the default parameters. + */ +if (rms_defaults_known > 0) + { + /* Set the FAB/RAB parameters accordingly. */ + fab-> fab$w_deq = rms_ext_active; + rab-> rab$b_mbc = rms_mbc_active; + rab-> rab$b_mbf = rms_mbf_active; + + /* Truncate at EOF on close, as we'll probably over-extend. */ + fab-> fab$v_tef = 1; + + /* If using multiple buffers, enable read-ahead and write-behind. */ + if (rms_mbf_active > 1) + { + rab-> rab$v_rah = 1; + rab-> rab$v_wbh = 1; + } + + if (DIAG_FLAG) + { + fprintf( mesg, + "Open callback. ID = %d, deq = %6d, mbc = %3d, mbf = %3d.\n", + *id_arg, fab-> fab$w_deq, rab-> rab$b_mbc, rab-> rab$b_mbf); + } + } + +/* Declare success. */ +return 0; +} + +#endif /* def __DECC */ + +/* + * 2004-09-19 SMS. + * + *---------------------------------------------------------------------- + * + * decc_init() + * + * On non-VAX systems, uses LIB$INITIALIZE to set a collection of C + * RTL features without using the DECC$* logical name method. + * + *---------------------------------------------------------------------- + */ + +#ifdef __DECC + +#ifdef __CRTL_VER + +#if !defined( __VAX) && (__CRTL_VER >= 70301000) + +#include <unixlib.h> + +/*--------------------------------------------------------------------*/ + +/* Global storage. */ + +/* Flag to sense if decc_init() was called. */ + +int decc_init_done = -1; + +/*--------------------------------------------------------------------*/ + +/* decc_init() + + Uses LIB$INITIALIZE to set a collection of C RTL features without + requiring the user to define the corresponding logical names. +*/ + +/* Structure to hold a DECC$* feature name and its desired value. */ + +typedef struct + { + char *name; + int value; + } decc_feat_t; + +/* Array of DECC$* feature names and their desired values. */ + +decc_feat_t decc_feat_array[] = { + + /* Preserve command-line case with SET PROCESS/PARSE_STYLE=EXTENDED */ + { "DECC$ARGV_PARSE_STYLE", 1 }, + + /* Preserve case for file names on ODS5 disks. */ + { "DECC$EFS_CASE_PRESERVE", 1 }, + + /* Enable multiple dots (and most characters) in ODS5 file names, + while preserving VMS-ness of ";version". */ + { "DECC$EFS_CHARSET", 1 }, + + /* List terminator. */ + { (char *)NULL, 0 } }; + +/* LIB$INITIALIZE initialization function. */ + +static void decc_init( void) +{ +int feat_index; +int feat_value; +int feat_value_max; +int feat_value_min; +int i; +int sts; + +/* Set the global flag to indicate that LIB$INITIALIZE worked. */ + +decc_init_done = 1; + +/* Loop through all items in the decc_feat_array[]. */ + +for (i = 0; decc_feat_array[ i].name != NULL; i++) + { + /* Get the feature index. */ + feat_index = decc$feature_get_index( decc_feat_array[ i].name); + if (feat_index >= 0) + { + /* Valid item. Collect its properties. */ + feat_value = decc$feature_get_value( feat_index, 1); + feat_value_min = decc$feature_get_value( feat_index, 2); + feat_value_max = decc$feature_get_value( feat_index, 3); + + if ((decc_feat_array[ i].value >= feat_value_min) && + (decc_feat_array[ i].value <= feat_value_max)) + { + /* Valid value. Set it if necessary. */ + if (feat_value != decc_feat_array[ i].value) + { + sts = decc$feature_set_value( feat_index, + 1, + decc_feat_array[ i].value); + } + } + else + { + /* Invalid DECC feature value. */ + printf( " INVALID DECC FEATURE VALUE, %d: %d <= %s <= %d.\n", + feat_value, + feat_value_min, decc_feat_array[ i].name, feat_value_max); + } + } + else + { + /* Invalid DECC feature name. */ + printf( " UNKNOWN DECC FEATURE: %s.\n", decc_feat_array[ i].name); + } + } +} + +/* Get "decc_init()" into a valid, loaded LIB$INITIALIZE PSECT. */ + +#pragma nostandard + +/* Establish the LIB$INITIALIZE PSECTs, with proper alignment and + other attributes. Note that "nopic" is significant only on VAX. +*/ +#pragma extern_model save + +#pragma extern_model strict_refdef "LIB$INITIALIZ" 2, nopic, nowrt +const int spare[ 8] = { 0 }; + +#pragma extern_model strict_refdef "LIB$INITIALIZE" 2, nopic, nowrt +void (*const x_decc_init)() = decc_init; + +#pragma extern_model restore + +/* Fake reference to ensure loading the LIB$INITIALIZE PSECT. */ + +#pragma extern_model save + +int LIB$INITIALIZE( void); + +#pragma extern_model strict_refdef +int dmy_lib$initialize = (int) LIB$INITIALIZE; + +#pragma extern_model restore + +#pragma standard + +#endif /* !defined( __VAX) && (__CRTL_VER >= 70301000) */ + +#endif /* def __CRTL_VER */ + +#endif /* def __DECC */ + +#endif /* VMS */ |