diff options
Diffstat (limited to 'support/popt.c')
| -rw-r--r-- | support/popt.c | 713 |
1 files changed, 0 insertions, 713 deletions
diff --git a/support/popt.c b/support/popt.c deleted file mode 100644 index 283cf83..0000000 --- a/support/popt.c +++ /dev/null @@ -1,713 +0,0 @@ -/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING - file accompanying popt source distributions, available from - ftp://ftp.redhat.com/pub/code/popt */ - -#include "system.h" -#include "findme.h" -#include "poptint.h" - -#ifndef HAVE_STRERROR -static char * strerror(int errno) { - extern int sys_nerr; - extern char * sys_errlist[]; - - if ((0 <= errno) && (errno < sys_nerr)) - return sys_errlist[errno]; - else - return POPT_("unknown errno"); -} -#endif - -void poptSetExecPath(poptContext con, const char * path, int allowAbsolute) { - if (con->execPath) xfree(con->execPath); - con->execPath = xstrdup(path); - con->execAbsolute = allowAbsolute; -} - -static void invokeCallbacks(poptContext con, const struct poptOption * table, - int post) { - const struct poptOption * opt = table; - poptCallbackType cb; - - while (opt->longName || opt->shortName || opt->arg) { - if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) { - invokeCallbacks(con, opt->arg, post); - } else if (((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) && - ((!post && (opt->argInfo & POPT_CBFLAG_PRE)) || - ( post && (opt->argInfo & POPT_CBFLAG_POST)))) { - cb = (poptCallbackType)opt->arg; - cb(con, post ? POPT_CALLBACK_REASON_POST : POPT_CALLBACK_REASON_PRE, - NULL, NULL, opt->descrip); - } - opt++; - } -} - -poptContext poptGetContext(const char * name, int argc, const char ** argv, - const struct poptOption * options, int flags) { - poptContext con = malloc(sizeof(*con)); - - memset(con, 0, sizeof(*con)); - - con->os = con->optionStack; - con->os->argc = argc; - con->os->argv = argv; - con->os->argb = NULL; - - if (!(flags & POPT_CONTEXT_KEEP_FIRST)) - con->os->next = 1; /* skip argv[0] */ - - con->leftovers = calloc( (argc + 1), sizeof(char *) ); - con->options = options; - con->aliases = NULL; - con->numAliases = 0; - con->flags = flags; - con->execs = NULL; - con->numExecs = 0; - con->finalArgvAlloced = argc * 2; - con->finalArgv = calloc( con->finalArgvAlloced, sizeof(*con->finalArgv) ); - con->execAbsolute = 1; - - if (getenv("POSIXLY_CORRECT") || getenv("POSIX_ME_HARDER")) - con->flags |= POPT_CONTEXT_POSIXMEHARDER; - - if (name) - con->appName = strcpy(malloc(strlen(name) + 1), name); - - invokeCallbacks(con, con->options, 0); - - return con; -} - -static void cleanOSE(struct optionStackEntry *os) -{ - if (os->nextArg) { - xfree(os->nextArg); - os->nextArg = NULL; - } - if (os->argv) { - xfree(os->argv); - os->argv = NULL; - } - if (os->argb) { - PBM_FREE(os->argb); - os->argb = NULL; - } -} - -void poptResetContext(poptContext con) { - int i; - - while (con->os > con->optionStack) { - cleanOSE(con->os--); - } - if (con->os->argb) { - PBM_FREE(con->os->argb); - con->os->argb = NULL; - } - con->os->currAlias = NULL; - con->os->nextCharArg = NULL; - con->os->nextArg = NULL; - con->os->next = 1; /* skip argv[0] */ - - con->numLeftovers = 0; - con->nextLeftover = 0; - con->restLeftover = 0; - con->doExec = NULL; - - for (i = 0; i < con->finalArgvCount; i++) { - if (con->finalArgv[i]) { - xfree(con->finalArgv[i]); - con->finalArgv[i] = NULL; - } - } - - con->finalArgvCount = 0; -} - -/* Only one of longName, shortName may be set at a time */ -static int handleExec(poptContext con, char * longName, char shortName) { - int i; - - i = con->numExecs - 1; - if (longName) { - while (i >= 0 && (!con->execs[i].longName || - strcmp(con->execs[i].longName, longName))) i--; - } else { - while (i >= 0 && - con->execs[i].shortName != shortName) i--; - } - - if (i < 0) return 0; - - if (con->flags & POPT_CONTEXT_NO_EXEC) - return 1; - - if (con->doExec == NULL) { - con->doExec = con->execs + i; - return 1; - } - - /* We already have an exec to do; remember this option for next - time 'round */ - if ((con->finalArgvCount + 1) >= (con->finalArgvAlloced)) { - con->finalArgvAlloced += 10; - con->finalArgv = realloc(con->finalArgv, - sizeof(*con->finalArgv) * con->finalArgvAlloced); - } - - i = con->finalArgvCount++; - { char *s = malloc((longName ? strlen(longName) : 0) + 3); - if (longName) - sprintf(s, "--%s", longName); - else - sprintf(s, "-%c", shortName); - con->finalArgv[i] = s; - } - - return 1; -} - -/* Only one of longName, shortName may be set at a time */ -static int handleAlias(poptContext con, const char * longName, char shortName, - /*@keep@*/ const char * nextCharArg) { - int i; - - if (con->os->currAlias && con->os->currAlias->longName && longName && - !strcmp(con->os->currAlias->longName, longName)) - return 0; - if (con->os->currAlias && shortName && - shortName == con->os->currAlias->shortName) - return 0; - - i = con->numAliases - 1; - if (longName) { - while (i >= 0 && (!con->aliases[i].longName || - strcmp(con->aliases[i].longName, longName))) i--; - } else { - while (i >= 0 && - con->aliases[i].shortName != shortName) i--; - } - - if (i < 0) return 0; - - if ((con->os - con->optionStack + 1) == POPT_OPTION_DEPTH) - return POPT_ERROR_OPTSTOODEEP; - - if (nextCharArg && *nextCharArg) - con->os->nextCharArg = nextCharArg; - - con->os++; - con->os->next = 0; - con->os->stuffed = 0; - con->os->nextArg = NULL; - con->os->nextCharArg = NULL; - con->os->currAlias = con->aliases + i; - poptDupArgv(con->os->currAlias->argc, con->os->currAlias->argv, - &con->os->argc, &con->os->argv); - con->os->argb = NULL; - - return 1; -} - -static void execCommand(poptContext con) { - const char ** argv; - int pos = 0; - const char * script = con->doExec->script; - - argv = malloc(sizeof(*argv) * - (6 + con->numLeftovers + con->finalArgvCount)); - - if (!con->execAbsolute && strchr(script, '/')) return; - - if (!strchr(script, '/') && con->execPath) { - char *s = alloca(strlen(con->execPath) + strlen(script) + 2); - sprintf(s, "%s/%s", con->execPath, script); - argv[pos] = s; - } else { - argv[pos] = script; - } - pos++; - - argv[pos] = findProgramPath(con->os->argv[0]); - if (argv[pos]) pos++; - argv[pos++] = ";"; - - memcpy(argv + pos, con->finalArgv, sizeof(*argv) * con->finalArgvCount); - pos += con->finalArgvCount; - - if (con->numLeftovers) { - argv[pos++] = "--"; - memcpy(argv + pos, con->leftovers, sizeof(*argv) * con->numLeftovers); - pos += con->numLeftovers; - } - - argv[pos++] = NULL; - -#ifdef __hpux - setresuid(getuid(), getuid(),-1); -#else -/* - * XXX " ... on BSD systems setuid() should be preferred over setreuid()" - * XXX sez' Timur Bakeyev <mc@bat.ru> - * XXX from Norbert Warmuth <nwarmuth@privat.circular.de> - */ -#if defined(HAVE_SETUID) - setuid(getuid()); -#elif defined (HAVE_SETREUID) - setreuid(getuid(), getuid()); /*hlauer: not portable to hpux9.01 */ -#else - ; /* Can't drop privileges */ -#endif -#endif - - execvp(argv[0], (char *const *)argv); -} - -/*@observer@*/ static const struct poptOption * -findOption(const struct poptOption * table, const char * longName, - char shortName, - /*@out@*/ poptCallbackType * callback, /*@out@*/ const void ** callbackData, - int singleDash) -{ - const struct poptOption * opt = table; - const struct poptOption * opt2; - const struct poptOption * cb = NULL; - - /* This happens when a single - is given */ - if (singleDash && !shortName && !*longName) - shortName = '-'; - - while (opt->longName || opt->shortName || opt->arg) { - if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) { - opt2 = findOption(opt->arg, longName, shortName, callback, - callbackData, singleDash); - if (opt2) { - if (*callback && !*callbackData) - *callbackData = opt->descrip; - return opt2; - } - } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) { - cb = opt; - } else if (longName && opt->longName && - (!singleDash || (opt->argInfo & POPT_ARGFLAG_ONEDASH)) && - !strcmp(longName, opt->longName)) { - break; - } else if (shortName && shortName == opt->shortName) { - break; - } - opt++; - } - - if (!opt->longName && !opt->shortName) return NULL; - *callbackData = NULL; - *callback = NULL; - if (cb) { - *callback = (poptCallbackType)cb->arg; - if (!(cb->argInfo & POPT_CBFLAG_INC_DATA)) - *callbackData = cb->descrip; - } - - return opt; -} - -static const char *findNextArg(poptContext con, unsigned argx, int delete) -{ - struct optionStackEntry * os = con->os; - const char * arg; - - do { - int i; - arg = NULL; - while (os->next == os->argc && os > con->optionStack) os--; - if (os->next == os->argc && os == con->optionStack) break; - for (i = os->next; i < os->argc; i++) { - if (os->argb && PBM_ISSET(i, os->argb)) continue; - if (*os->argv[i] == '-') continue; - if (--argx > 0) continue; - arg = os->argv[i]; - if (delete) { - if (os->argb == NULL) os->argb = PBM_ALLOC(os->argc); - PBM_SET(i, os->argb); - } - break; - } - if (os > con->optionStack) os--; - } while (arg == NULL); - return arg; -} - -static /*@only@*/ const char * expandNextArg(poptContext con, const char * s) -{ - const char *a; - size_t alen; - char *t, *te; - size_t tn = strlen(s) + 1; - char c; - - te = t = malloc(tn);; - while ((c = *s++) != '\0') { - switch (c) { - case '\\': /* escape */ - c = *s++; - break; - case '!': - if (!(s[0] == '#' && s[1] == ':' && s[2] == '+')) - break; - if ((a = findNextArg(con, 1, 1)) == NULL) - break; - s += 3; - - alen = strlen(a); - tn += alen; - *te = '\0'; - t = realloc(t, tn); - te = t + strlen(t); - strncpy(te, a, alen); te += alen; - continue; - /*@notreached@*/ break; - default: - break; - } - *te++ = c; - } - *te = '\0'; - t = realloc(t, strlen(t)); /* XXX memory leak, hard to plug */ - return t; -} - -/* returns 'val' element, -1 on last item, POPT_ERROR_* on error */ -int poptGetNextOpt(poptContext con) -{ - const struct poptOption * opt = NULL; - int done = 0; - - while (!done) { - const char * origOptString = NULL; - poptCallbackType cb = NULL; - const void * cbData = NULL; - const char * longArg = NULL; - - while (!con->os->nextCharArg && con->os->next == con->os->argc - && con->os > con->optionStack) { - cleanOSE(con->os--); - } - if (!con->os->nextCharArg && con->os->next == con->os->argc) { - invokeCallbacks(con, con->options, 1); - if (con->doExec) execCommand(con); - return -1; - } - - /* Process next long option */ - if (!con->os->nextCharArg) { - char * localOptString, * optString; - - if (con->os->argb && PBM_ISSET(con->os->next, con->os->argb)) { - con->os->next++; - continue; - } - origOptString = con->os->argv[con->os->next++]; - - if (con->restLeftover || *origOptString != '-') { - con->leftovers[con->numLeftovers++] = origOptString; - if (con->flags & POPT_CONTEXT_POSIXMEHARDER) - con->restLeftover = 1; - continue; - } - - /* Make a copy we can hack at */ - localOptString = optString = - strcpy(alloca(strlen(origOptString) + 1), - origOptString); - - if (!optString[0]) - return POPT_ERROR_BADOPT; - - if (optString[1] == '-' && !optString[2]) { - con->restLeftover = 1; - continue; - } else { - char *oe; - int singleDash; - - optString++; - if (*optString == '-') - singleDash = 0, optString++; - else - singleDash = 1; - - /* XXX aliases with arg substitution need "--alias=arg" */ - if (handleAlias(con, optString, '\0', NULL)) - continue; - if (handleExec(con, optString, '\0')) - continue; - - /* Check for "--long=arg" option. */ - for (oe = optString; *oe && *oe != '='; oe++) - ; - if (*oe == '=') { - *oe++ = '\0'; - /* XXX longArg is mapped back to persistent storage. */ - longArg = origOptString + (oe - localOptString); - } - - opt = findOption(con->options, optString, '\0', &cb, &cbData, - singleDash); - if (!opt && !singleDash) - return POPT_ERROR_BADOPT; - } - - if (!opt) - con->os->nextCharArg = origOptString + 1; - } - - /* Process next short option */ - if (con->os->nextCharArg) { - origOptString = con->os->nextCharArg; - - con->os->nextCharArg = NULL; - - if (handleAlias(con, NULL, *origOptString, - origOptString + 1)) { - origOptString++; - continue; - } - if (handleExec(con, NULL, *origOptString)) - continue; - - opt = findOption(con->options, NULL, *origOptString, &cb, - &cbData, 0); - if (!opt) - return POPT_ERROR_BADOPT; - - origOptString++; - if (*origOptString) - con->os->nextCharArg = origOptString; - } - - if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE) { - *((int *)opt->arg) = 1; - } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL) { - if (opt->arg) - *((int *) opt->arg) = opt->val; - } else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) { - if (con->os->nextArg) { - xfree(con->os->nextArg); - con->os->nextArg = NULL; - } - if (longArg) { - con->os->nextArg = expandNextArg(con, longArg); - } else if (con->os->nextCharArg) { - con->os->nextArg = expandNextArg(con, con->os->nextCharArg); - con->os->nextCharArg = NULL; - } else { - while (con->os->next == con->os->argc && - con->os > con->optionStack) { - cleanOSE(con->os--); - } - if (con->os->next == con->os->argc) - return POPT_ERROR_NOARG; - - con->os->nextArg = expandNextArg(con, con->os->argv[con->os->next++]); - } - - if (opt->arg) { - long aLong; - char *end; - - switch (opt->argInfo & POPT_ARG_MASK) { - case POPT_ARG_STRING: - /* XXX memory leak, hard to plug */ - *((const char **) opt->arg) = xstrdup(con->os->nextArg); - break; - - case POPT_ARG_INT: - case POPT_ARG_LONG: - aLong = strtol(con->os->nextArg, &end, 0); - if (!(end && *end == '\0')) - return POPT_ERROR_BADNUMBER; - - if (aLong == LONG_MIN || aLong == LONG_MAX) - return POPT_ERROR_OVERFLOW; - if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_LONG) { - *((long *) opt->arg) = aLong; - } else { - if (aLong > INT_MAX || aLong < INT_MIN) - return POPT_ERROR_OVERFLOW; - *((int *) opt->arg) = aLong; - } - break; - - default: - fprintf(stdout, POPT_("option type (%d) not implemented in popt\n"), - opt->argInfo & POPT_ARG_MASK); - exit(EXIT_FAILURE); - } - } - } - - if (cb) - cb(con, POPT_CALLBACK_REASON_OPTION, opt, con->os->nextArg, cbData); - else if (opt->val && ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL)) - done = 1; - - if ((con->finalArgvCount + 2) >= (con->finalArgvAlloced)) { - con->finalArgvAlloced += 10; - con->finalArgv = realloc(con->finalArgv, - sizeof(*con->finalArgv) * con->finalArgvAlloced); - } - - { char *s = malloc((opt->longName ? strlen(opt->longName) : 0) + 3); - if (opt->longName) - sprintf(s, "--%s", opt->longName); - else - sprintf(s, "-%c", opt->shortName); - con->finalArgv[con->finalArgvCount++] = s; - } - - if (opt->arg && (opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE - && (opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL) { - con->finalArgv[con->finalArgvCount++] = xstrdup(con->os->nextArg); - } - } - - return opt->val; -} - -const char * poptGetOptArg(poptContext con) { - const char * ret = con->os->nextArg; - con->os->nextArg = NULL; - return ret; -} - -const char * poptGetArg(poptContext con) { - if (con->numLeftovers == con->nextLeftover) return NULL; - return con->leftovers[con->nextLeftover++]; -} - -const char * poptPeekArg(poptContext con) { - if (con->numLeftovers == con->nextLeftover) return NULL; - return con->leftovers[con->nextLeftover]; -} - -const char ** poptGetArgs(poptContext con) { - if (con->numLeftovers == con->nextLeftover) return NULL; - - /* some apps like [like RPM ;-) ] need this NULL terminated */ - con->leftovers[con->numLeftovers] = NULL; - - return (con->leftovers + con->nextLeftover); -} - -void poptFreeContext(poptContext con) { - int i; - - poptResetContext(con); - if (con->os->argb) free(con->os->argb); - - for (i = 0; i < con->numAliases; i++) { - if (con->aliases[i].longName) xfree(con->aliases[i].longName); - free(con->aliases[i].argv); - } - - for (i = 0; i < con->numExecs; i++) { - if (con->execs[i].longName) xfree(con->execs[i].longName); - xfree(con->execs[i].script); - } - if (con->execs) xfree(con->execs); - - free(con->leftovers); - free(con->finalArgv); - if (con->appName) xfree(con->appName); - if (con->aliases) free(con->aliases); - if (con->otherHelp) xfree(con->otherHelp); - if (con->execPath) xfree(con->execPath); - free(con); -} - -int poptAddAlias(poptContext con, struct poptAlias newAlias, - /*@unused@*/ int flags) -{ - int aliasNum = con->numAliases++; - struct poptAlias * alias; - - /* SunOS won't realloc(NULL, ...) */ - if (!con->aliases) - con->aliases = malloc(sizeof(newAlias) * con->numAliases); - else - con->aliases = realloc(con->aliases, - sizeof(newAlias) * con->numAliases); - alias = con->aliases + aliasNum; - - alias->longName = (newAlias.longName) - ? strcpy(malloc(strlen(newAlias.longName) + 1), newAlias.longName) - : NULL; - alias->shortName = newAlias.shortName; - alias->argc = newAlias.argc; - alias->argv = newAlias.argv; - - return 0; -} - -const char * poptBadOption(poptContext con, int flags) { - struct optionStackEntry * os; - - if (flags & POPT_BADOPTION_NOALIAS) - os = con->optionStack; - else - os = con->os; - - return os->argv[os->next - 1]; -} - -#define POPT_ERROR_NOARG -10 -#define POPT_ERROR_BADOPT -11 -#define POPT_ERROR_OPTSTOODEEP -13 -#define POPT_ERROR_BADQUOTE -15 /* only from poptParseArgString() */ -#define POPT_ERROR_ERRNO -16 /* only from poptParseArgString() */ - -const char *const poptStrerror(const int error) { - switch (error) { - case POPT_ERROR_NOARG: - return POPT_("missing argument"); - case POPT_ERROR_BADOPT: - return POPT_("unknown option"); - case POPT_ERROR_OPTSTOODEEP: - return POPT_("aliases nested too deeply"); - case POPT_ERROR_BADQUOTE: - return POPT_("error in paramter quoting"); - case POPT_ERROR_BADNUMBER: - return POPT_("invalid numeric value"); - case POPT_ERROR_OVERFLOW: - return POPT_("number too large or too small"); - case POPT_ERROR_ERRNO: - return strerror(errno); - default: - return POPT_("unknown error"); - } -} - -int poptStuffArgs(poptContext con, const char ** argv) { - int argc; - - if ((con->os - con->optionStack) == POPT_OPTION_DEPTH) - return POPT_ERROR_OPTSTOODEEP; - - for (argc = 0; argv[argc]; argc++) - ; - - con->os++; - con->os->next = 0; - con->os->nextArg = NULL; - con->os->nextCharArg = NULL; - con->os->currAlias = NULL; - poptDupArgv(argc, argv, &con->os->argc, &con->os->argv); - con->os->argb = NULL; - con->os->stuffed = 1; - - return 0; -} - -const char * poptGetInvocationName(poptContext con) { - return con->os->argv[0]; -} |