popt.c

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00001 
00005 /* (C) 1998-2002 Red Hat, Inc. -- Licensing details are in the COPYING
00006    file accompanying popt source distributions, available from
00007    ftp://ftp.rpm.org/pub/rpm/dist */
00008 
00009 #undef  MYDEBUG
00010 
00011 #include "system.h"
00012 
00013 #ifdef HAVE_FLOAT_H
00014 #include <float.h>
00015 #endif
00016 #include <math.h>
00017 
00018 #include "findme.h"
00019 #include "poptint.h"
00020 
00021 #ifdef  MYDEBUG
00022 /*@unchecked@*/
00023 int _popt_debug = 0;
00024 #endif
00025 
00026 #if !defined(HAVE_STRERROR) && !defined(__LCLINT__)
00027 static char * strerror(int errno)
00028 {
00029     extern int sys_nerr;
00030     extern char * sys_errlist[];
00031 
00032     if ((0 <= errno) && (errno < sys_nerr))
00033         return sys_errlist[errno];
00034     else
00035         return POPT_("unknown errno");
00036 }
00037 #endif
00038 
00039 #ifdef MYDEBUG
00040 /*@unused@*/
00041 static void prtcon(const char *msg, poptContext con)
00042 {
00043     if (msg) fprintf(stderr, "%s", msg);
00044     fprintf(stderr, "\tcon %p os %p nextCharArg \"%s\" nextArg \"%s\" argv[%d] \"%s\"\n",
00045         con, con->os,
00046         (con->os->nextCharArg ? con->os->nextCharArg : ""),
00047         (con->os->nextArg ? con->os->nextArg : ""),
00048         con->os->next,
00049         (con->os->argv && con->os->argv[con->os->next]
00050                 ? con->os->argv[con->os->next] : ""));
00051 }
00052 #endif
00053 
00054 void poptSetExecPath(poptContext con, const char * path, int allowAbsolute)
00055 {
00056     con->execPath = _free(con->execPath);
00057     con->execPath = xstrdup(path);
00058     con->execAbsolute = allowAbsolute;
00059 /*@-nullstate@*/ /* LCL: con->execPath not NULL */
00060     return;
00061 /*@=nullstate@*/
00062 }
00063 
00064 static void invokeCallbacksPRE(poptContext con, const struct poptOption * opt)
00065         /*@globals internalState@*/
00066         /*@modifies internalState@*/
00067 {
00068     if (opt != NULL)
00069     for (; opt->longName || opt->shortName || opt->arg; opt++) {
00070         if (opt->arg == NULL) continue;         /* XXX program error. */
00071         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
00072             void * arg = opt->arg;
00073 /*@-branchstate@*/
00074             /* XXX sick hack to preserve pretense of ABI. */
00075             if (arg == poptHelpOptions) arg = poptHelpOptionsI18N;
00076 /*@=branchstate@*/
00077             /* Recurse on included sub-tables. */
00078             invokeCallbacksPRE(con, arg);
00079         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
00080                    (opt->argInfo & POPT_CBFLAG_PRE))
00081         {   /*@-castfcnptr@*/
00082             poptCallbackType cb = (poptCallbackType)opt->arg;
00083             /*@=castfcnptr@*/
00084             /* Perform callback. */
00085             /*@-noeffectuncon @*/
00086             cb(con, POPT_CALLBACK_REASON_PRE, NULL, NULL, opt->descrip);
00087             /*@=noeffectuncon @*/
00088         }
00089     }
00090 }
00091 
00092 static void invokeCallbacksPOST(poptContext con, const struct poptOption * opt)
00093         /*@globals internalState@*/
00094         /*@modifies internalState@*/
00095 {
00096     if (opt != NULL)
00097     for (; opt->longName || opt->shortName || opt->arg; opt++) {
00098         if (opt->arg == NULL) continue;         /* XXX program error. */
00099         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
00100             void * arg = opt->arg;
00101 /*@-branchstate@*/
00102             /* XXX sick hack to preserve pretense of ABI. */
00103             if (arg == poptHelpOptions) arg = poptHelpOptionsI18N;
00104 /*@=branchstate@*/
00105             /* Recurse on included sub-tables. */
00106             invokeCallbacksPOST(con, arg);
00107         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
00108                    (opt->argInfo & POPT_CBFLAG_POST))
00109         {   /*@-castfcnptr@*/
00110             poptCallbackType cb = (poptCallbackType)opt->arg;
00111             /*@=castfcnptr@*/
00112             /* Perform callback. */
00113             /*@-noeffectuncon @*/
00114             cb(con, POPT_CALLBACK_REASON_POST, NULL, NULL, opt->descrip);
00115             /*@=noeffectuncon @*/
00116         }
00117     }
00118 }
00119 
00120 static void invokeCallbacksOPTION(poptContext con,
00121                                   const struct poptOption * opt,
00122                                   const struct poptOption * myOpt,
00123                                   /*@null@*/ const void * myData, int shorty)
00124         /*@globals internalState@*/
00125         /*@modifies internalState@*/
00126 {
00127     const struct poptOption * cbopt = NULL;
00128 
00129     if (opt != NULL)
00130     for (; opt->longName || opt->shortName || opt->arg; opt++) {
00131         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
00132             void * arg = opt->arg;
00133 /*@-branchstate@*/
00134             /* XXX sick hack to preserve pretense of ABI. */
00135             if (arg == poptHelpOptions) arg = poptHelpOptionsI18N;
00136 /*@=branchstate@*/
00137             /* Recurse on included sub-tables. */
00138             if (opt->arg != NULL)       /* XXX program error */
00139                 invokeCallbacksOPTION(con, opt->arg, myOpt, myData, shorty);
00140         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
00141                   !(opt->argInfo & POPT_CBFLAG_SKIPOPTION)) {
00142             /* Save callback info. */
00143             cbopt = opt;
00144         } else if (cbopt != NULL &&
00145                    ((myOpt->shortName && opt->shortName && shorty &&
00146                         myOpt->shortName == opt->shortName) ||
00147                     (myOpt->longName != NULL && opt->longName != NULL &&
00148                         !strcmp(myOpt->longName, opt->longName)))
00149                    )
00150         {   /*@-castfcnptr@*/
00151             poptCallbackType cb = (poptCallbackType)cbopt->arg;
00152             /*@=castfcnptr@*/
00153             const void * cbData = (cbopt->descrip ? cbopt->descrip : myData);
00154             /* Perform callback. */
00155             if (cb != NULL) {   /* XXX program error */
00156                 /*@-noeffectuncon @*/
00157                 cb(con, POPT_CALLBACK_REASON_OPTION, myOpt,
00158                         con->os->nextArg, cbData);
00159                 /*@=noeffectuncon @*/
00160             }
00161             /* Terminate (unless explcitly continuing). */
00162             if (!(cbopt->argInfo & POPT_CBFLAG_CONTINUE))
00163                 return;
00164         }
00165     }
00166 }
00167 
00168 poptContext poptGetContext(const char * name, int argc, const char ** argv,
00169                            const struct poptOption * options, unsigned int flags)
00170 {
00171     poptContext con = malloc(sizeof(*con));
00172 
00173     if (con == NULL) return NULL;       /* XXX can't happen */
00174     memset(con, 0, sizeof(*con));
00175 
00176     con->os = con->optionStack;
00177     con->os->argc = argc;
00178 /*@-dependenttrans -assignexpose@*/     /* FIX: W2DO? */
00179     con->os->argv = argv;
00180 /*@=dependenttrans =assignexpose@*/
00181     con->os->argb = NULL;
00182 
00183     if (!(flags & POPT_CONTEXT_KEEP_FIRST))
00184         con->os->next = 1;                      /* skip argv[0] */
00185 
00186     con->leftovers = calloc( (argc + 1), sizeof(*con->leftovers) );
00187 /*@-dependenttrans -assignexpose@*/     /* FIX: W2DO? */
00188     con->options = options;
00189 /*@=dependenttrans =assignexpose@*/
00190     con->aliases = NULL;
00191     con->numAliases = 0;
00192     con->flags = flags;
00193     con->execs = NULL;
00194     con->numExecs = 0;
00195     con->finalArgvAlloced = argc * 2;
00196     con->finalArgv = calloc( con->finalArgvAlloced, sizeof(*con->finalArgv) );
00197     con->execAbsolute = 1;
00198     con->arg_strip = NULL;
00199 
00200     if (getenv("POSIXLY_CORRECT") || getenv("POSIX_ME_HARDER"))
00201         con->flags |= POPT_CONTEXT_POSIXMEHARDER;
00202 
00203     if (name) {
00204         char * t = malloc(strlen(name) + 1);
00205         if (t) con->appName = strcpy(t, name);
00206     }
00207 
00208 /*@-internalglobs@*/
00209     invokeCallbacksPRE(con, con->options);
00210 /*@=internalglobs@*/
00211 
00212     return con;
00213 }
00214 
00215 static void cleanOSE(/*@special@*/ struct optionStackEntry *os)
00216         /*@uses os @*/
00217         /*@releases os->nextArg, os->argv, os->argb @*/
00218         /*@modifies os @*/
00219 {
00220     os->nextArg = _free(os->nextArg);
00221     os->argv = _free(os->argv);
00222     os->argb = PBM_FREE(os->argb);
00223 }
00224 
00225 /*@-boundswrite@*/
00226 void poptResetContext(poptContext con)
00227 {
00228     int i;
00229 
00230     if (con == NULL) return;
00231     while (con->os > con->optionStack) {
00232         cleanOSE(con->os--);
00233     }
00234     con->os->argb = PBM_FREE(con->os->argb);
00235     con->os->currAlias = NULL;
00236     con->os->nextCharArg = NULL;
00237     con->os->nextArg = NULL;
00238     con->os->next = 1;                  /* skip argv[0] */
00239 
00240     con->numLeftovers = 0;
00241     con->nextLeftover = 0;
00242     con->restLeftover = 0;
00243     con->doExec = NULL;
00244 
00245     if (con->finalArgv != NULL)
00246     for (i = 0; i < con->finalArgvCount; i++) {
00247 /*@-unqualifiedtrans@*/         /* FIX: typedef double indirection. */
00248         con->finalArgv[i] = _free(con->finalArgv[i]);
00249 /*@=unqualifiedtrans@*/
00250     }
00251 
00252     con->finalArgvCount = 0;
00253     con->arg_strip = PBM_FREE(con->arg_strip);
00254 /*@-nullstate@*/        /* FIX: con->finalArgv != NULL */
00255     return;
00256 /*@=nullstate@*/
00257 }
00258 /*@=boundswrite@*/
00259 
00260 /* Only one of longName, shortName should be set, not both. */
00261 /*@-boundswrite@*/
00262 static int handleExec(/*@special@*/ poptContext con,
00263                 /*@null@*/ const char * longName, char shortName)
00264         /*@uses con->execs, con->numExecs, con->flags, con->doExec,
00265                 con->finalArgv, con->finalArgvAlloced, con->finalArgvCount @*/
00266         /*@modifies con @*/
00267 {
00268     poptItem item;
00269     int i;
00270 
00271     if (con->execs == NULL || con->numExecs <= 0) /* XXX can't happen */
00272         return 0;
00273 
00274     for (i = con->numExecs - 1; i >= 0; i--) {
00275         item = con->execs + i;
00276         if (longName && !(item->option.longName &&
00277                         !strcmp(longName, item->option.longName)))
00278             continue;
00279         else if (shortName != item->option.shortName)
00280             continue;
00281         break;
00282     }
00283     if (i < 0) return 0;
00284 
00285 
00286     if (con->flags & POPT_CONTEXT_NO_EXEC)
00287         return 1;
00288 
00289     if (con->doExec == NULL) {
00290         con->doExec = con->execs + i;
00291         return 1;
00292     }
00293 
00294     /* We already have an exec to do; remember this option for next
00295        time 'round */
00296     if ((con->finalArgvCount + 1) >= (con->finalArgvAlloced)) {
00297         con->finalArgvAlloced += 10;
00298         con->finalArgv = realloc(con->finalArgv,
00299                         sizeof(*con->finalArgv) * con->finalArgvAlloced);
00300     }
00301 
00302     i = con->finalArgvCount++;
00303     if (con->finalArgv != NULL) /* XXX can't happen */
00304     {   char *s  = malloc((longName ? strlen(longName) : 0) + 3);
00305         if (s != NULL) {        /* XXX can't happen */
00306             if (longName)
00307                 sprintf(s, "--%s", longName);
00308             else
00309                 sprintf(s, "-%c", shortName);
00310             con->finalArgv[i] = s;
00311         } else
00312             con->finalArgv[i] = NULL;
00313     }
00314 
00315     return 1;
00316 }
00317 /*@=boundswrite@*/
00318 
00319 /* Only one of longName, shortName may be set at a time */
00320 static int handleAlias(/*@special@*/ poptContext con,
00321                 /*@null@*/ const char * longName, char shortName,
00322                 /*@exposed@*/ /*@null@*/ const char * nextCharArg)
00323         /*@uses con->aliases, con->numAliases, con->optionStack, con->os,
00324                 con->os->currAlias, con->os->currAlias->option.longName @*/
00325         /*@modifies con @*/
00326 {
00327     poptItem item = con->os->currAlias;
00328     int rc;
00329     int i;
00330 
00331     if (item) {
00332         if (longName && (item->option.longName &&
00333                 !strcmp(longName, item->option.longName)))
00334             return 0;
00335         if (shortName && shortName == item->option.shortName)
00336             return 0;
00337     }
00338 
00339     if (con->aliases == NULL || con->numAliases <= 0) /* XXX can't happen */
00340         return 0;
00341 
00342     for (i = con->numAliases - 1; i >= 0; i--) {
00343         item = con->aliases + i;
00344         if (longName && !(item->option.longName &&
00345                         !strcmp(longName, item->option.longName)))
00346             continue;
00347         else if (shortName != item->option.shortName)
00348             continue;
00349         break;
00350     }
00351     if (i < 0) return 0;
00352 
00353     if ((con->os - con->optionStack + 1) == POPT_OPTION_DEPTH)
00354         return POPT_ERROR_OPTSTOODEEP;
00355 
00356 /*@-boundsread@*/
00357     if (nextCharArg && *nextCharArg)
00358         con->os->nextCharArg = nextCharArg;
00359 /*@=boundsread@*/
00360 
00361     con->os++;
00362     con->os->next = 0;
00363     con->os->stuffed = 0;
00364     con->os->nextArg = NULL;
00365     con->os->nextCharArg = NULL;
00366     con->os->currAlias = con->aliases + i;
00367     rc = poptDupArgv(con->os->currAlias->argc, con->os->currAlias->argv,
00368                 &con->os->argc, &con->os->argv);
00369     con->os->argb = NULL;
00370 
00371     return (rc ? rc : 1);
00372 }
00373 
00374 /*@-bounds -boundswrite @*/
00375 static int execCommand(poptContext con)
00376         /*@globals internalState @*/
00377         /*@modifies internalState @*/
00378 {
00379     poptItem item = con->doExec;
00380     const char ** argv = NULL;
00381     int argc = 0;
00382     int rc;
00383     int ec = POPT_ERROR_ERRNO;
00384 
00385     if (item == NULL) /*XXX can't happen*/
00386         return POPT_ERROR_NOARG;
00387 
00388     if (item->argv == NULL || item->argc < 1 ||
00389         (!con->execAbsolute && strchr(item->argv[0], '/')))
00390             return POPT_ERROR_NOARG;
00391 
00392     argv = malloc(sizeof(*argv) *
00393                         (6 + item->argc + con->numLeftovers + con->finalArgvCount));
00394     if (argv == NULL) return POPT_ERROR_MALLOC;
00395 
00396     if (!strchr(item->argv[0], '/') && con->execPath != NULL) {
00397         char *s = malloc(strlen(con->execPath) + strlen(item->argv[0]) + sizeof("/"));
00398         if (s)
00399             sprintf(s, "%s/%s", con->execPath, item->argv[0]);
00400         argv[argc] = s;
00401     } else
00402         argv[argc] = POPT_findProgramPath(item->argv[0]);
00403     if (argv[argc++] == NULL) {
00404         ec = POPT_ERROR_NOARG;
00405         goto exit;
00406     }
00407 
00408     if (item->argc > 1) {
00409         memcpy(argv + argc, item->argv + 1, sizeof(*argv) * (item->argc - 1));
00410         argc += (item->argc - 1);
00411     }
00412 
00413     if (con->finalArgv != NULL && con->finalArgvCount > 0) {
00414         memcpy(argv + argc, con->finalArgv,
00415                 sizeof(*argv) * con->finalArgvCount);
00416         argc += con->finalArgvCount;
00417     }
00418 
00419     if (con->leftovers != NULL && con->numLeftovers > 0) {
00420         memcpy(argv + argc, con->leftovers, sizeof(*argv) * con->numLeftovers);
00421         argc += con->numLeftovers;
00422     }
00423 
00424     argv[argc] = NULL;
00425 
00426 #if defined(hpux) || defined(__hpux)
00427     rc = setresgid(getgid(), getgid(),-1);
00428     if (rc) goto exit;
00429     rc = setresuid(getuid(), getuid(),-1);
00430     if (rc) goto exit;
00431 #else
00432 /*
00433  * XXX " ... on BSD systems setuid() should be preferred over setreuid()"
00434  * XXX  sez' Timur Bakeyev <mc@bat.ru>
00435  * XXX  from Norbert Warmuth <nwarmuth@privat.circular.de>
00436  */
00437 #if defined(HAVE_SETUID)
00438     rc = setgid(getgid());
00439     if (rc) goto exit;
00440     rc = setuid(getuid());
00441     if (rc) goto exit;
00442 #elif defined (HAVE_SETREUID)
00443     rc = setregid(getgid(), getgid());
00444     if (rc) goto exit;
00445     rc = setreuid(getuid(), getuid());
00446     if (rc) goto exit;
00447 #else
00448     ; /* Can't drop privileges */
00449 #endif
00450 #endif
00451 
00452 #ifdef  MYDEBUG
00453 if (_popt_debug)
00454     {   const char ** avp;
00455         fprintf(stderr, "==> execvp(%s) argv[%d]:", argv[0], argc);
00456         for (avp = argv; *avp; avp++)
00457             fprintf(stderr, " '%s'", *avp);
00458         fprintf(stderr, "\n");
00459     }
00460 #endif
00461 
00462     rc = execvp(argv[0], (char *const *)argv);
00463 
00464 exit:
00465     if (argv) {
00466         if (argv[0])
00467             free((void *)argv[0]);
00468         free(argv);
00469     }
00470     return ec;
00471 }
00472 /*@=bounds =boundswrite @*/
00473 
00474 /*@-boundswrite@*/
00475 /*@observer@*/ /*@null@*/ static const struct poptOption *
00476 findOption(const struct poptOption * opt, /*@null@*/ const char * longName, int longNameLen,
00477                 char shortName,
00478                 /*@null@*/ /*@out@*/ poptCallbackType * callback,
00479                 /*@null@*/ /*@out@*/ const void ** callbackData,
00480                 int singleDash)
00481         /*@modifies *callback, *callbackData */
00482 {
00483     const struct poptOption * cb = NULL;
00484 
00485     /* This happens when a single - is given */
00486     if (singleDash && !shortName && (longName && *longName == '\0'))
00487         shortName = '-';
00488 
00489     for (; opt->longName || opt->shortName || opt->arg; opt++) {
00490 
00491         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
00492             const struct poptOption * opt2;
00493             void * arg = opt->arg;
00494 
00495 /*@-branchstate@*/
00496             /* XXX sick hack to preserve pretense of ABI. */
00497             if (arg == poptHelpOptions) arg = poptHelpOptionsI18N;
00498 /*@=branchstate@*/
00499             /* Recurse on included sub-tables. */
00500             if (arg == NULL) continue;  /* XXX program error */
00501             opt2 = findOption(arg, longName, longNameLen, shortName, callback,
00502                               callbackData, singleDash);
00503             if (opt2 == NULL) continue;
00504             /* Sub-table data will be inheirited if no data yet. */
00505             if (!(callback && *callback)) return opt2;
00506             if (!(callbackData && *callbackData == NULL)) return opt2;
00507 /*@-observertrans -dependenttrans @*/
00508             *callbackData = opt->descrip;
00509 /*@=observertrans =dependenttrans @*/
00510             return opt2;
00511         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) {
00512             cb = opt;
00513         } else if (longName != NULL && opt->longName != NULL &&
00514                    (!singleDash || (opt->argInfo & POPT_ARGFLAG_ONEDASH)) &&
00515                    (!strncmp(longName, opt->longName, longNameLen) && strlen(opt->longName) == longNameLen))
00516         {
00517             break;
00518         } else if (shortName && shortName == opt->shortName) {
00519             break;
00520         }
00521     }
00522 
00523     if (opt->longName == NULL && !opt->shortName)
00524         return NULL;
00525 
00526 /*@-modobserver -mods @*/
00527     if (callback) *callback = NULL;
00528     if (callbackData) *callbackData = NULL;
00529     if (cb) {
00530         if (callback)
00531         /*@-castfcnptr@*/
00532             *callback = (poptCallbackType)cb->arg;
00533         /*@=castfcnptr@*/
00534         if (!(cb->argInfo & POPT_CBFLAG_INC_DATA)) {
00535             if (callbackData)
00536 /*@-observertrans@*/    /* FIX: typedef double indirection. */
00537                 *callbackData = cb->descrip;
00538 /*@=observertrans@*/
00539         }
00540     }
00541 /*@=modobserver =mods @*/
00542 
00543     return opt;
00544 }
00545 /*@=boundswrite@*/
00546 
00547 static const char * findNextArg(/*@special@*/ poptContext con,
00548                 unsigned argx, int delete_arg)
00549         /*@uses con->optionStack, con->os,
00550                 con->os->next, con->os->argb, con->os->argc, con->os->argv @*/
00551         /*@modifies con @*/
00552 {
00553     struct optionStackEntry * os = con->os;
00554     const char * arg;
00555 
00556     do {
00557         int i;
00558         arg = NULL;
00559         while (os->next == os->argc && os > con->optionStack) os--;
00560         if (os->next == os->argc && os == con->optionStack) break;
00561         if (os->argv != NULL)
00562         for (i = os->next; i < os->argc; i++) {
00563 /*@-sizeoftype@*/
00564             if (os->argb && PBM_ISSET(i, os->argb))
00565                 /*@innercontinue@*/ continue;
00566             if (*os->argv[i] == '-')
00567                 /*@innercontinue@*/ continue;
00568             if (--argx > 0)
00569                 /*@innercontinue@*/ continue;
00570             arg = os->argv[i];
00571             if (delete_arg) {
00572                 if (os->argb == NULL) os->argb = PBM_ALLOC(os->argc);
00573                 if (os->argb != NULL)   /* XXX can't happen */
00574                     PBM_SET(i, os->argb);
00575             }
00576             /*@innerbreak@*/ break;
00577 /*@=sizeoftype@*/
00578         }
00579         if (os > con->optionStack) os--;
00580     } while (arg == NULL);
00581     return arg;
00582 }
00583 
00584 /*@-boundswrite@*/
00585 static /*@only@*/ /*@null@*/ const char *
00586 expandNextArg(/*@special@*/ poptContext con, const char * s)
00587         /*@uses con->optionStack, con->os,
00588                 con->os->next, con->os->argb, con->os->argc, con->os->argv @*/
00589         /*@modifies con @*/
00590 {
00591     const char * a = NULL;
00592     size_t alen;
00593     char *t, *te;
00594     size_t tn = strlen(s) + 1;
00595     char c;
00596 
00597     te = t = malloc(tn);;
00598     if (t == NULL) return NULL;         /* XXX can't happen */
00599     while ((c = *s++) != '\0') {
00600         switch (c) {
00601 #if 0   /* XXX can't do this */
00602         case '\\':      /* escape */
00603             c = *s++;
00604             /*@switchbreak@*/ break;
00605 #endif
00606         case '!':
00607             if (!(s[0] == '#' && s[1] == ':' && s[2] == '+'))
00608                 /*@switchbreak@*/ break;
00609             /* XXX Make sure that findNextArg deletes only next arg. */
00610             if (a == NULL) {
00611                 if ((a = findNextArg(con, 1U, 1)) == NULL)
00612                     /*@switchbreak@*/ break;
00613             }
00614             s += 3;
00615 
00616             alen = strlen(a);
00617             tn += alen;
00618             *te = '\0';
00619             t = realloc(t, tn);
00620             te = t + strlen(t);
00621             strncpy(te, a, alen); te += alen;
00622             continue;
00623             /*@notreached@*/ /*@switchbreak@*/ break;
00624         default:
00625             /*@switchbreak@*/ break;
00626         }
00627         *te++ = c;
00628     }
00629     *te = '\0';
00630     t = realloc(t, strlen(t) + 1);      /* XXX memory leak, hard to plug */
00631     return t;
00632 }
00633 /*@=boundswrite@*/
00634 
00635 static void poptStripArg(/*@special@*/ poptContext con, int which)
00636         /*@uses con->arg_strip, con->optionStack @*/
00637         /*@defines con->arg_strip @*/
00638         /*@modifies con @*/
00639 {
00640 /*@-sizeoftype@*/
00641     if (con->arg_strip == NULL)
00642         con->arg_strip = PBM_ALLOC(con->optionStack[0].argc);
00643     if (con->arg_strip != NULL)         /* XXX can't happen */
00644     PBM_SET(which, con->arg_strip);
00645 /*@=sizeoftype@*/
00646 /*@-compdef@*/ /* LCL: con->arg_strip undefined? */
00647     return;
00648 /*@=compdef@*/
00649 }
00650 
00651 /*@unchecked@*/
00652 static unsigned int seed = 0;
00653 
00654 /*@-bitwisesigned@*/    /* LCL: logical ops with unsigned. */
00655 int poptSaveLong(long * arg, unsigned int argInfo, long aLong)
00656 {
00657     /* XXX Check alignment, may fail on funky platforms. */
00658     if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
00659         return POPT_ERROR_NULLARG;
00660 
00661     if (aLong != 0 && argInfo & POPT_ARGFLAG_RANDOM) {
00662         if (!seed) {
00663             srandom((unsigned)getpid());
00664             srandom((unsigned)random());
00665         }
00666         aLong = random() % (aLong > 0 ? aLong : -aLong);
00667         aLong++;
00668     }
00669     if (argInfo & POPT_ARGFLAG_NOT)
00670         aLong = ~aLong;
00671     switch (argInfo & POPT_ARGFLAG_LOGICALOPS) {
00672     case 0:
00673         *arg = aLong;
00674         break;
00675     case POPT_ARGFLAG_OR:
00676         *arg |= aLong;
00677         break;
00678     case POPT_ARGFLAG_AND:
00679         *arg &= aLong;
00680         break;
00681     case POPT_ARGFLAG_XOR:
00682         *arg ^= aLong;
00683         break;
00684     default:
00685         return POPT_ERROR_BADOPERATION;
00686         /*@notreached@*/ break;
00687     }
00688     return 0;
00689 }
00690 /*@=bitwisesigned@*/
00691 
00692 /*@-bitwisesigned@*/    /* LCL: logical ops with unsigned. */
00693 int poptSaveInt(/*@null@*/ int * arg, unsigned int argInfo, long aLong)
00694 {
00695     /* XXX Check alignment, may fail on funky platforms. */
00696     if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
00697         return POPT_ERROR_NULLARG;
00698 
00699     if (aLong != 0 && argInfo & POPT_ARGFLAG_RANDOM) {
00700         if (!seed) {
00701             srandom((unsigned)getpid());
00702             srandom((unsigned)random());
00703         }
00704         aLong = random() % (aLong > 0 ? aLong : -aLong);
00705         aLong++;
00706     }
00707     if (argInfo & POPT_ARGFLAG_NOT)
00708         aLong = ~aLong;
00709     switch (argInfo & POPT_ARGFLAG_LOGICALOPS) {
00710     case 0:
00711         *arg = aLong;
00712         break;
00713     case POPT_ARGFLAG_OR:
00714         *arg |= aLong;
00715         break;
00716     case POPT_ARGFLAG_AND:
00717         *arg &= aLong;
00718         break;
00719     case POPT_ARGFLAG_XOR:
00720         *arg ^= aLong;
00721         break;
00722     default:
00723         return POPT_ERROR_BADOPERATION;
00724         /*@notreached@*/ break;
00725     }
00726     return 0;
00727 }
00728 /*@=bitwisesigned@*/
00729 
00730 /*@-boundswrite@*/
00731 /* returns 'val' element, -1 on last item, POPT_ERROR_* on error */
00732 int poptGetNextOpt(poptContext con)
00733 {
00734     const struct poptOption * opt = NULL;
00735     int done = 0;
00736 
00737     if (con == NULL)
00738         return -1;
00739     while (!done) {
00740         const char * origOptString = NULL;
00741         poptCallbackType cb = NULL;
00742         const void * cbData = NULL;
00743         const char * longArg = NULL;
00744         int canstrip = 0;
00745         int shorty = 0;
00746 
00747         while (!con->os->nextCharArg && con->os->next == con->os->argc
00748                 && con->os > con->optionStack) {
00749             cleanOSE(con->os--);
00750         }
00751         if (!con->os->nextCharArg && con->os->next == con->os->argc) {
00752             invokeCallbacksPOST(con, con->options);
00753 
00754             if (con->maincall) {
00755                 /*@-noeffectuncon @*/
00756                 (void) (*con->maincall) (con->finalArgvCount, con->finalArgv);
00757                 /*@=noeffectuncon @*/
00758                 return -1;
00759             }
00760 
00761             if (con->doExec) return execCommand(con);
00762             return -1;
00763         }
00764 
00765         /* Process next long option */
00766         if (!con->os->nextCharArg) {
00767             const char * optString;
00768             int optStringLen;
00769             int thisopt;
00770 
00771 /*@-sizeoftype@*/
00772             if (con->os->argb && PBM_ISSET(con->os->next, con->os->argb)) {
00773                 con->os->next++;
00774                 continue;
00775             }
00776 /*@=sizeoftype@*/
00777             thisopt = con->os->next;
00778             if (con->os->argv != NULL)  /* XXX can't happen */
00779             origOptString = con->os->argv[con->os->next++];
00780 
00781             if (origOptString == NULL)  /* XXX can't happen */
00782                 return POPT_ERROR_BADOPT;
00783 
00784             if (con->restLeftover || *origOptString != '-' ||
00785                 (*origOptString == '-' && origOptString[1] == '\0'))
00786             {
00787                 if (con->flags & POPT_CONTEXT_POSIXMEHARDER)
00788                     con->restLeftover = 1;
00789                 if (con->flags & POPT_CONTEXT_ARG_OPTS) {
00790                     con->os->nextArg = xstrdup(origOptString);
00791                     return 0;
00792                 }
00793                 if (con->leftovers != NULL)     /* XXX can't happen */
00794                     con->leftovers[con->numLeftovers++] = origOptString;
00795                 continue;
00796             }
00797 
00798             /* Make a copy we can hack at */
00799             optString = origOptString;
00800 
00801             if (optString[0] == '\0')
00802                 return POPT_ERROR_BADOPT;
00803 
00804             if (optString[1] == '-' && !optString[2]) {
00805                 con->restLeftover = 1;
00806                 continue;
00807             } else {
00808                 const char *oe;
00809                 int singleDash;
00810 
00811                 optString++;
00812                 if (*optString == '-')
00813                     singleDash = 0, optString++;
00814                 else
00815                     singleDash = 1;
00816 
00817                 /* XXX aliases with arg substitution need "--alias=arg" */
00818                 if (handleAlias(con, optString, '\0', NULL))
00819                     continue;
00820 
00821                 if (handleExec(con, optString, '\0'))
00822                     continue;
00823 
00824                 /* Check for "--long=arg" option. */
00825                 for (oe = optString; *oe && *oe != '='; oe++)
00826                     {};
00827                 optStringLen = oe - optString;
00828                 if (*oe == '=')
00829                     longArg = oe + 1;
00830 
00831                 opt = findOption(con->options, optString, optStringLen, '\0', &cb, &cbData,
00832                                  singleDash);
00833                 if (!opt && !singleDash)
00834                     return POPT_ERROR_BADOPT;
00835             }
00836 
00837             if (!opt) {
00838                 con->os->nextCharArg = origOptString + 1;
00839             } else {
00840                 if (con->os == con->optionStack &&
00841                    opt->argInfo & POPT_ARGFLAG_STRIP)
00842                 {
00843                     canstrip = 1;
00844                     poptStripArg(con, thisopt);
00845                 }
00846                 shorty = 0;
00847             }
00848         }
00849 
00850         /* Process next short option */
00851 /*@-branchstate@*/              /* FIX: W2DO? */
00852         if (con->os->nextCharArg) {
00853             origOptString = con->os->nextCharArg;
00854 
00855             con->os->nextCharArg = NULL;
00856 
00857             if (handleAlias(con, NULL, *origOptString, origOptString + 1))
00858                 continue;
00859 
00860             if (handleExec(con, NULL, *origOptString)) {
00861                 /* Restore rest of short options for further processing */
00862                 origOptString++;
00863                 if (*origOptString != '\0')
00864                     con->os->nextCharArg = origOptString;
00865                 continue;
00866             }
00867 
00868             opt = findOption(con->options, NULL, 0, *origOptString, &cb,
00869                              &cbData, 0);
00870             if (!opt)
00871                 return POPT_ERROR_BADOPT;
00872             shorty = 1;
00873 
00874             origOptString++;
00875             if (*origOptString != '\0')
00876                 con->os->nextCharArg = origOptString;
00877         }
00878 /*@=branchstate@*/
00879 
00880         if (opt == NULL) return POPT_ERROR_BADOPT;      /* XXX can't happen */
00881         if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE) {
00882             if (poptSaveInt((int *)opt->arg, opt->argInfo, 1L))
00883                 return POPT_ERROR_BADOPERATION;
00884         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL) {
00885             if (opt->arg) {
00886                 if (poptSaveInt((int *)opt->arg, opt->argInfo, (long)opt->val))
00887                     return POPT_ERROR_BADOPERATION;
00888             }
00889         } else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
00890             con->os->nextArg = _free(con->os->nextArg);
00891             if (longArg) {
00892                 longArg = expandNextArg(con, longArg);
00893                 con->os->nextArg = longArg;
00894             } else if (con->os->nextCharArg) {
00895                 longArg = expandNextArg(con, con->os->nextCharArg);
00896                 con->os->nextArg = longArg;
00897                 con->os->nextCharArg = NULL;
00898             } else {
00899                 while (con->os->next == con->os->argc &&
00900                        con->os > con->optionStack) {
00901                     cleanOSE(con->os--);
00902                 }
00903                 if (con->os->next == con->os->argc) {
00904                     if (!(opt->argInfo & POPT_ARGFLAG_OPTIONAL))
00905                         return POPT_ERROR_NOARG;
00906                     con->os->nextArg = NULL;
00907                 } else {
00908 
00909                     /*
00910                      * Make sure this isn't part of a short arg or the
00911                      * result of an alias expansion.
00912                      */
00913                     if (con->os == con->optionStack &&
00914                         (opt->argInfo & POPT_ARGFLAG_STRIP) &&
00915                         canstrip) {
00916                         poptStripArg(con, con->os->next);
00917                     }
00918                 
00919                     if (con->os->argv != NULL) {        /* XXX can't happen */
00920                         if (opt->argInfo & POPT_ARGFLAG_OPTIONAL &&
00921                             con->os->argv[con->os->next][0] == '-') {
00922                             con->os->nextArg = NULL;
00923                         } else {
00924                             /* XXX watchout: subtle side-effects live here. */
00925                             longArg = con->os->argv[con->os->next++];
00926                             longArg = expandNextArg(con, longArg);
00927                             con->os->nextArg = longArg;
00928                         }
00929                     }
00930                 }
00931             }
00932             longArg = NULL;
00933 
00934             if (opt->arg) {
00935                 switch (opt->argInfo & POPT_ARG_MASK) {
00936                 case POPT_ARG_STRING:
00937                     /* XXX memory leak, hard to plug */
00938                     *((const char **) opt->arg) = (con->os->nextArg)
00939                         ? xstrdup(con->os->nextArg) : NULL;
00940                     /*@switchbreak@*/ break;
00941 
00942                 case POPT_ARG_INT:
00943                 case POPT_ARG_LONG:
00944                 {   long aLong = 0;
00945                     char *end;
00946 
00947                     if (con->os->nextArg) {
00948                         aLong = strtol(con->os->nextArg, &end, 0);
00949                         if (!(end && *end == '\0'))
00950                             return POPT_ERROR_BADNUMBER;
00951                     }
00952 
00953                     if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_LONG) {
00954                         if (aLong == LONG_MIN || aLong == LONG_MAX)
00955                             return POPT_ERROR_OVERFLOW;
00956                         if (poptSaveLong((long *)opt->arg, opt->argInfo, aLong))
00957                             return POPT_ERROR_BADOPERATION;
00958                     } else {
00959                         if (aLong > INT_MAX || aLong < INT_MIN)
00960                             return POPT_ERROR_OVERFLOW;
00961                         if (poptSaveInt((int *)opt->arg, opt->argInfo, aLong))
00962                             return POPT_ERROR_BADOPERATION;
00963                     }
00964                 }   /*@switchbreak@*/ break;
00965 
00966                 case POPT_ARG_FLOAT:
00967                 case POPT_ARG_DOUBLE:
00968                 {   double aDouble = 0.0;
00969                     char *end;
00970 
00971                     if (con->os->nextArg) {
00972 /*@-mods@*/
00973                         int saveerrno = errno;
00974                         errno = 0;
00975                         aDouble = strtod(con->os->nextArg, &end);
00976                         if (errno == ERANGE)
00977                             return POPT_ERROR_OVERFLOW;
00978                         errno = saveerrno;
00979 /*@=mods@*/
00980                         if (*end != '\0')
00981                             return POPT_ERROR_BADNUMBER;
00982                     }
00983 
00984                     if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_DOUBLE) {
00985                         *((double *) opt->arg) = aDouble;
00986                     } else {
00987 #define _ABS(a) ((((a) - 0.0) < DBL_EPSILON) ? -(a) : (a))
00988                         if ((_ABS(aDouble) - FLT_MAX) > DBL_EPSILON)
00989                             return POPT_ERROR_OVERFLOW;
00990                         if ((FLT_MIN - _ABS(aDouble)) > DBL_EPSILON)
00991                             return POPT_ERROR_OVERFLOW;
00992                         *((float *) opt->arg) = aDouble;
00993                     }
00994                 }   /*@switchbreak@*/ break;
00995                 case POPT_ARG_MAINCALL:
00996 /*@-type@*/
00997                     con->maincall = opt->arg;
00998 /*@=type@*/
00999                     /*@switchbreak@*/ break;
01000                 default:
01001                     fprintf(stdout,
01002                         POPT_("option type (%d) not implemented in popt\n"),
01003                         (opt->argInfo & POPT_ARG_MASK));
01004                     exit(EXIT_FAILURE);
01005                     /*@notreached@*/ /*@switchbreak@*/ break;
01006                 }
01007             }
01008         }
01009 
01010         if (cb)
01011             invokeCallbacksOPTION(con, con->options, opt, cbData, shorty);
01012         else if (opt->val && ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL))
01013             done = 1;
01014 
01015         if ((con->finalArgvCount + 2) >= (con->finalArgvAlloced)) {
01016             con->finalArgvAlloced += 10;
01017             con->finalArgv = realloc(con->finalArgv,
01018                             sizeof(*con->finalArgv) * con->finalArgvAlloced);
01019         }
01020 
01021         if (con->finalArgv != NULL)
01022         {   char *s = malloc((opt->longName ? strlen(opt->longName) : 0) + 3);
01023             if (s != NULL) {    /* XXX can't happen */
01024                 if (opt->longName)
01025                     sprintf(s, "%s%s",
01026                         ((opt->argInfo & POPT_ARGFLAG_ONEDASH) ? "-" : "--"),
01027                         opt->longName);
01028                 else
01029                     sprintf(s, "-%c", opt->shortName);
01030                 con->finalArgv[con->finalArgvCount++] = s;
01031             } else
01032                 con->finalArgv[con->finalArgvCount++] = NULL;
01033         }
01034 
01035         if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE)
01036             /*@-ifempty@*/ ; /*@=ifempty@*/
01037         else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL)
01038             /*@-ifempty@*/ ; /*@=ifempty@*/
01039         else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
01040             if (con->finalArgv != NULL && con->os->nextArg != NULL)
01041                 con->finalArgv[con->finalArgvCount++] =
01042                         xstrdup(con->os->nextArg);
01043         }
01044     }
01045 
01046     return (opt ? opt->val : -1);       /* XXX can't happen */
01047 }
01048 /*@=boundswrite@*/
01049 
01050 const char * poptGetOptArg(poptContext con)
01051 {
01052     const char * ret = NULL;
01053 /*@-branchstate@*/
01054     if (con) {
01055         ret = con->os->nextArg;
01056         con->os->nextArg = NULL;
01057     }
01058 /*@=branchstate@*/
01059     return ret;
01060 }
01061 
01062 const char * poptGetArg(poptContext con)
01063 {
01064     const char * ret = NULL;
01065     if (con && con->leftovers != NULL && con->nextLeftover < con->numLeftovers)
01066         ret = con->leftovers[con->nextLeftover++];
01067     return ret;
01068 }
01069 
01070 const char * poptPeekArg(poptContext con)
01071 {
01072     const char * ret = NULL;
01073     if (con && con->leftovers != NULL && con->nextLeftover < con->numLeftovers)
01074         ret = con->leftovers[con->nextLeftover];
01075     return ret;
01076 }
01077 
01078 /*@-boundswrite@*/
01079 const char ** poptGetArgs(poptContext con)
01080 {
01081     if (con == NULL ||
01082         con->leftovers == NULL || con->numLeftovers == con->nextLeftover)
01083         return NULL;
01084 
01085     /* some apps like [like RPM ;-) ] need this NULL terminated */
01086     con->leftovers[con->numLeftovers] = NULL;
01087 
01088 /*@-nullret -nullstate @*/      /* FIX: typedef double indirection. */
01089     return (con->leftovers + con->nextLeftover);
01090 /*@=nullret =nullstate @*/
01091 }
01092 /*@=boundswrite@*/
01093 
01094 poptContext poptFreeContext(poptContext con)
01095 {
01096     poptItem item;
01097     int i;
01098 
01099     if (con == NULL) return con;
01100     poptResetContext(con);
01101     con->os->argb = _free(con->os->argb);
01102 
01103     if (con->aliases != NULL)
01104     for (i = 0; i < con->numAliases; i++) {
01105         item = con->aliases + i;
01106 /*@-modobserver -observertrans -dependenttrans@*/
01107         item->option.longName = _free(item->option.longName);
01108         item->option.descrip = _free(item->option.descrip);
01109         item->option.argDescrip = _free(item->option.argDescrip);
01110 /*@=modobserver =observertrans =dependenttrans@*/
01111         item->argv = _free(item->argv);
01112     }
01113     con->aliases = _free(con->aliases);
01114 
01115     if (con->execs != NULL)
01116     for (i = 0; i < con->numExecs; i++) {
01117         item = con->execs + i;
01118 /*@-modobserver -observertrans -dependenttrans@*/
01119         item->option.longName = _free(item->option.longName);
01120         item->option.descrip = _free(item->option.descrip);
01121         item->option.argDescrip = _free(item->option.argDescrip);
01122 /*@=modobserver =observertrans =dependenttrans@*/
01123         item->argv = _free(item->argv);
01124     }
01125     con->execs = _free(con->execs);
01126 
01127     con->leftovers = _free(con->leftovers);
01128     con->finalArgv = _free(con->finalArgv);
01129     con->appName = _free(con->appName);
01130     con->otherHelp = _free(con->otherHelp);
01131     con->execPath = _free(con->execPath);
01132     con->arg_strip = PBM_FREE(con->arg_strip);
01133     
01134     con = _free(con);
01135     return con;
01136 }
01137 
01138 int poptAddAlias(poptContext con, struct poptAlias alias,
01139                 /*@unused@*/ int flags)
01140 {
01141     struct poptItem_s item_buf;
01142     poptItem item = &item_buf;
01143     memset(item, 0, sizeof(*item));
01144     item->option.longName = alias.longName;
01145     item->option.shortName = alias.shortName;
01146     item->option.argInfo = POPT_ARGFLAG_DOC_HIDDEN;
01147     item->option.arg = 0;
01148     item->option.val = 0;
01149     item->option.descrip = NULL;
01150     item->option.argDescrip = NULL;
01151     item->argc = alias.argc;
01152     item->argv = alias.argv;
01153     return poptAddItem(con, item, 0);
01154 }
01155 
01156 /*@-boundswrite@*/
01157 int poptAddItem(poptContext con, poptItem newItem, int flags)
01158 {
01159     poptItem * items, item;
01160     int * nitems;
01161 
01162     switch (flags) {
01163     case 1:
01164         items = &con->execs;
01165         nitems = &con->numExecs;
01166         break;
01167     case 0:
01168         items = &con->aliases;
01169         nitems = &con->numAliases;
01170         break;
01171     default:
01172         return 1;
01173         /*@notreached@*/ break;
01174     }
01175 
01176     *items = realloc((*items), ((*nitems) + 1) * sizeof(**items));
01177     if ((*items) == NULL)
01178         return 1;
01179 
01180     item = (*items) + (*nitems);
01181 
01182     item->option.longName =
01183         (newItem->option.longName ? xstrdup(newItem->option.longName) : NULL);
01184     item->option.shortName = newItem->option.shortName;
01185     item->option.argInfo = newItem->option.argInfo;
01186     item->option.arg = newItem->option.arg;
01187     item->option.val = newItem->option.val;
01188     item->option.descrip =
01189         (newItem->option.descrip ? xstrdup(newItem->option.descrip) : NULL);
01190     item->option.argDescrip =
01191        (newItem->option.argDescrip ? xstrdup(newItem->option.argDescrip) : NULL);
01192     item->argc = newItem->argc;
01193     item->argv = newItem->argv;
01194 
01195     (*nitems)++;
01196 
01197     return 0;
01198 }
01199 /*@=boundswrite@*/
01200 
01201 const char * poptBadOption(poptContext con, unsigned int flags)
01202 {
01203     struct optionStackEntry * os = NULL;
01204 
01205     if (con != NULL)
01206         os = (flags & POPT_BADOPTION_NOALIAS) ? con->optionStack : con->os;
01207 
01208     return (os != NULL && os->argv != NULL ? os->argv[os->next - 1] : NULL);
01209 }
01210 
01211 const char * poptStrerror(const int error)
01212 {
01213     switch (error) {
01214       case POPT_ERROR_NOARG:
01215         return POPT_("missing argument");
01216       case POPT_ERROR_BADOPT:
01217         return POPT_("unknown option");
01218       case POPT_ERROR_BADOPERATION:
01219         return POPT_("mutually exclusive logical operations requested");
01220       case POPT_ERROR_NULLARG:
01221         return POPT_("opt->arg should not be NULL");
01222       case POPT_ERROR_OPTSTOODEEP:
01223         return POPT_("aliases nested too deeply");
01224       case POPT_ERROR_BADQUOTE:
01225         return POPT_("error in parameter quoting");
01226       case POPT_ERROR_BADNUMBER:
01227         return POPT_("invalid numeric value");
01228       case POPT_ERROR_OVERFLOW:
01229         return POPT_("number too large or too small");
01230       case POPT_ERROR_MALLOC:
01231         return POPT_("memory allocation failed");
01232       case POPT_ERROR_ERRNO:
01233         return strerror(errno);
01234       default:
01235         return POPT_("unknown error");
01236     }
01237 }
01238 
01239 int poptStuffArgs(poptContext con, const char ** argv)
01240 {
01241     int argc;
01242     int rc;
01243 
01244     if ((con->os - con->optionStack) == POPT_OPTION_DEPTH)
01245         return POPT_ERROR_OPTSTOODEEP;
01246 
01247     for (argc = 0; argv[argc]; argc++)
01248         {};
01249 
01250     con->os++;
01251     con->os->next = 0;
01252     con->os->nextArg = NULL;
01253     con->os->nextCharArg = NULL;
01254     con->os->currAlias = NULL;
01255     rc = poptDupArgv(argc, argv, &con->os->argc, &con->os->argv);
01256     con->os->argb = NULL;
01257     con->os->stuffed = 1;
01258 
01259     return rc;
01260 }
01261 
01262 const char * poptGetInvocationName(poptContext con)
01263 {
01264     return (con->os->argv ? con->os->argv[0] : "");
01265 }
01266 
01267 /*@-boundswrite@*/
01268 int poptStrippedArgv(poptContext con, int argc, char ** argv)
01269 {
01270     int numargs = argc;
01271     int j = 1;
01272     int i;
01273     
01274 /*@-sizeoftype@*/
01275     if (con->arg_strip)
01276     for (i = 1; i < argc; i++) {
01277         if (PBM_ISSET(i, con->arg_strip))
01278             numargs--;
01279     }
01280     
01281     for (i = 1; i < argc; i++) {
01282         if (con->arg_strip && PBM_ISSET(i, con->arg_strip))
01283             continue;
01284         argv[j] = (j < numargs) ? argv[i] : NULL;
01285         j++;
01286     }
01287 /*@=sizeoftype@*/
01288     
01289     return numargs;
01290 }
01291 /*@=boundswrite@*/

Generated on Tue Nov 27 16:23:44 2007 for popt by  doxygen 1.5.2