source/popt/popt.c

   1 /** \ingroup popt
   2  * \file popt/popt.c
   3  */
   4
   5 /* (C) 1998-2002 Red Hat, Inc. -- Licensing details are in the COPYING
   6    file accompanying popt source distributions, available from
   7    ftp://ftp.rpm.org/pub/rpm/dist */
   8
   9 #undef  MYDEBUG
  10
  11 #include "system.h"
  12
  13 #if HAVE_FLOAT_H
  14 #include <float.h>
  15 #endif
  16 #include <math.h>
  17
  18 #include "findme.h"
  19 #include "poptint.h"
  20
  21 #ifdef  MYDEBUG
  22 /*@unchecked@*/
  23 int _popt_debug = 0;
  24 #endif
  25
  26 #ifndef HAVE_STRERROR
  27 static char * strerror(int errno) {
  28     extern int sys_nerr;
  29     extern char * sys_errlist[];
  30
  31     if ((0 <= errno) && (errno < sys_nerr))
  32         return sys_errlist[errno];
  33     else
  34         return POPT_("unknown errno");
  35 }
  36 #endif
  37
  38 #ifdef MYDEBUG
  39 /*@unused@*/ static void prtcon(const char *msg, poptContext con)
  40 {
  41     if (msg) fprintf(stderr, "%s", msg);
  42     fprintf(stderr, "\tcon %p os %p nextCharArg \"%s\" nextArg \"%s\" argv[%d] \"%s\"\n",
  43         con, con->os,
  44         (con->os->nextCharArg ? con->os->nextCharArg : ""),
  45         (con->os->nextArg ? con->os->nextArg : ""),
  46         con->os->next,
  47         (con->os->argv && con->os->argv[con->os->next]
  48                 ? con->os->argv[con->os->next] : ""));
  49 }
  50 #endif
  51
  52 void poptSetExecPath(poptContext con, const char * path, int allowAbsolute)
  53 {
  54     con->execPath = (const char *)_free(con->execPath);
  55     con->execPath = xstrdup(path);
  56     con->execAbsolute = allowAbsolute;
  57     /*@-nullstate@*/ /* LCL: con->execPath can be NULL? */
  58     return;
  59     /*@=nullstate@*/
  60 }
  61
  62 static void invokeCallbacksPRE(poptContext con, const struct poptOption * opt)
  63         /*@globals internalState@*/
  64         /*@modifies internalState@*/
  65 {
  66     if (opt != NULL)
  67     for (; opt->longName || opt->shortName || opt->arg; opt++) {
  68         if (opt->arg == NULL) continue;         /* XXX program error. */
  69         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
  70             /* Recurse on included sub-tables. */
  71             invokeCallbacksPRE(con, (const struct poptOption *)opt->arg);
  72         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
  73                    (opt->argInfo & POPT_CBFLAG_PRE))
  74         {   /*@-castfcnptr@*/
  75             poptCallbackType cb = (poptCallbackType)opt->arg;
  76             /*@=castfcnptr@*/
  77             /* Perform callback. */
  78             /*@-moduncon -noeffectuncon @*/
  79             cb(con, POPT_CALLBACK_REASON_PRE, NULL, NULL, opt->descrip);
  80             /*@=moduncon =noeffectuncon @*/
  81         }
  82     }
  83 }
  84
  85 static void invokeCallbacksPOST(poptContext con, const struct poptOption * opt)
  86         /*@globals internalState@*/
  87         /*@modifies internalState@*/
  88 {
  89     if (opt != NULL)
  90     for (; opt->longName || opt->shortName || opt->arg; opt++) {
  91         if (opt->arg == NULL) continue;         /* XXX program error. */
  92         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
  93             /* Recurse on included sub-tables. */
  94             invokeCallbacksPOST(con, (const struct poptOption *)opt->arg);
  95         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
  96                    (opt->argInfo & POPT_CBFLAG_POST))
  97         {   /*@-castfcnptr@*/
  98             poptCallbackType cb = (poptCallbackType)opt->arg;
  99             /*@=castfcnptr@*/
 100             /* Perform callback. */
 101             /*@-moduncon -noeffectuncon @*/
 102             cb(con, POPT_CALLBACK_REASON_POST, NULL, NULL, opt->descrip);
 103             /*@=moduncon =noeffectuncon @*/
 104         }
 105     }
 106 }
 107
 108 static void invokeCallbacksOPTION(poptContext con,
 109                                   const struct poptOption * opt,
 110                                   const struct poptOption * myOpt,
 111                                   /*@null@*/ const void * myData, int shorty)
 112         /*@globals internalState@*/
 113         /*@modifies internalState@*/
 114 {
 115     const struct poptOption * cbopt = NULL;
 116
 117     if (opt != NULL)
 118     for (; opt->longName || opt->shortName || opt->arg; opt++) {
 119         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
 120             /* Recurse on included sub-tables. */
 121             if (opt->arg != NULL)       /* XXX program error */
 122                 invokeCallbacksOPTION(con, (const struct poptOption *)opt->arg,
 123                                       myOpt, myData, shorty);
 124         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
 125                   !(opt->argInfo & POPT_CBFLAG_SKIPOPTION)) {
 126             /* Save callback info. */
 127             cbopt = opt;
 128         } else if (cbopt != NULL &&
 129                    ((myOpt->shortName && opt->shortName && shorty &&
 130                         myOpt->shortName == opt->shortName) ||
 131                     (myOpt->longName && opt->longName &&
 132                 /*@-nullpass@*/         /* LCL: opt->longName != NULL */
 133                         !strcmp(myOpt->longName, opt->longName)))
 134                 /*@=nullpass@*/
 135                    )
 136         {   /*@-castfcnptr@*/
 137             poptCallbackType cb = (poptCallbackType)cbopt->arg;
 138             /*@=castfcnptr@*/
 139             const void * cbData = (cbopt->descrip ? cbopt->descrip : myData);
 140             /* Perform callback. */
 141             if (cb != NULL) {   /* XXX program error */
 142                 /*@-moduncon -noeffectuncon @*/
 143                 cb(con, POPT_CALLBACK_REASON_OPTION, myOpt,
 144                         con->os->nextArg, cbData);
 145                 /*@=moduncon =noeffectuncon @*/
 146             }
 147             /* Terminate (unless explcitly continuing). */
 148             if (!(cbopt->argInfo & POPT_CBFLAG_CONTINUE))
 149                 return;
 150         }
 151     }
 152 }
 153
 154 poptContext poptGetContext(const char * name, int argc, const char ** argv,
 155                            const struct poptOption * options, int flags)
 156 {
 157     poptContext con = (poptContext)malloc(sizeof(*con));
 158
 159     if (con == NULL) return NULL;       /* XXX can't happen */
 160     memset(con, 0, sizeof(*con));
 161
 162     con->os = con->optionStack;
 163     con->os->argc = argc;
 164     /*@-dependenttrans -assignexpose@*/ /* FIX: W2DO? */
 165     con->os->argv = argv;
 166     /*@=dependenttrans =assignexpose@*/
 167     con->os->argb = NULL;
 168
 169     if (!(flags & POPT_CONTEXT_KEEP_FIRST))
 170         con->os->next = 1;                      /* skip argv[0] */
 171
 172     con->leftovers = (const char **)calloc( (argc + 1),
 173                                             sizeof(*con->leftovers) );
 174     /*@-dependenttrans -assignexpose@*/ /* FIX: W2DO? */
 175     con->options = options;
 176     /*@=dependenttrans =assignexpose@*/
 177     con->aliases = NULL;
 178     con->numAliases = 0;
 179     con->flags = flags;
 180     con->execs = NULL;
 181     con->numExecs = 0;
 182     con->finalArgvAlloced = argc * 2;
 183     con->finalArgv = (const char **)calloc( con->finalArgvAlloced,
 184                                             sizeof(*con->finalArgv) );
 185     con->execAbsolute = 1;
 186     con->arg_strip = NULL;
 187
 188     if (getenv("POSIXLY_CORRECT") || getenv("POSIX_ME_HARDER"))
 189         con->flags |= POPT_CONTEXT_POSIXMEHARDER;
 190
 191     if (name) {
 192         char * t = (char *)malloc(strlen(name) + 1);
 193         if (t) con->appName = strcpy(t, name);
 194     }
 195
 196     /*@-internalglobs@*/
 197     invokeCallbacksPRE(con, con->options);
 198     /*@=internalglobs@*/
 199
 200     return con;
 201 }
 202
 203 static void cleanOSE(/*@special@*/ struct optionStackEntry *os)
 204         /*@uses os @*/
 205         /*@releases os->nextArg, os->argv, os->argb @*/
 206         /*@modifies os @*/
 207 {
 208     os->nextArg = (const char *)_free(os->nextArg);
 209     os->argv = (const char **)_free(os->argv);
 210     os->argb = (pbm_set *)PBM_FREE(os->argb);
 211 }
 212
 213 /*@-boundswrite@*/
 214 void poptResetContext(poptContext con)
 215 {
 216     int i;
 217
 218     if (con == NULL) return;
 219     while (con->os > con->optionStack) {
 220         cleanOSE(con->os--);
 221     }
 222     con->os->argb = (pbm_set *)PBM_FREE(con->os->argb);
 223     con->os->currAlias = NULL;
 224     con->os->nextCharArg = NULL;
 225     con->os->nextArg = NULL;
 226     con->os->next = 1;                  /* skip argv[0] */
 227
 228     con->numLeftovers = 0;
 229     con->nextLeftover = 0;
 230     con->restLeftover = 0;
 231     con->doExec = NULL;
 232
 233     if (con->finalArgv != NULL)
 234     for (i = 0; i < con->finalArgvCount; i++) {
 235         /*@-unqualifiedtrans@*/         /* FIX: typedef double indirection. */
 236         con->finalArgv[i] = (const char *)_free(con->finalArgv[i]);
 237         /*@=unqualifiedtrans@*/
 238     }
 239
 240     con->finalArgvCount = 0;
 241     con->arg_strip = ( pbm_set *)PBM_FREE(con->arg_strip);
 242     /*@-nullstate@*/    /* FIX: con->finalArgv != NULL */
 243     return;
 244     /*@=nullstate@*/
 245 }
 246 /*@=boundswrite@*/
 247
 248 /* Only one of longName, shortName should be set, not both. */
 249 /*@-boundswrite@*/
 250 static int handleExec(/*@special@*/ poptContext con,
 251                 /*@null@*/ const char * longName, char shortName)
 252         /*@uses con->execs, con->numExecs, con->flags, con->doExec,
 253                 con->finalArgv, con->finalArgvAlloced, con->finalArgvCount @*/
 254         /*@modifies con @*/
 255 {
 256     poptItem item;
 257     int i;
 258
 259     if (con->execs == NULL || con->numExecs <= 0) /* XXX can't happen */
 260         return 0;
 261
 262     for (i = con->numExecs - 1; i >= 0; i--) {
 263         item = con->execs + i;
 264         if (longName && !(item->option.longName &&
 265                         !strcmp(longName, item->option.longName)))
 266             continue;
 267         else if (shortName != item->option.shortName)
 268             continue;
 269         break;
 270     }
 271     if (i < 0) return 0;
 272
 273
 274     if (con->flags & POPT_CONTEXT_NO_EXEC)
 275         return 1;
 276
 277     if (con->doExec == NULL) {
 278         con->doExec = con->execs + i;
 279         return 1;
 280     }
 281
 282     /* We already have an exec to do; remember this option for next
 283        time 'round */
 284     if ((con->finalArgvCount + 1) >= (con->finalArgvAlloced)) {
 285         con->finalArgvAlloced += 10;
 286         con->finalArgv = (const char **)realloc(con->finalArgv,
 287                         sizeof(*con->finalArgv) * con->finalArgvAlloced);
 288     }
 289
 290     i = con->finalArgvCount++;
 291     if (con->finalArgv != NULL) /* XXX can't happen */
 292     {   char *s  = (char *)malloc((longName ? strlen(longName) : 0) + 3);
 293         if (s != NULL) {        /* XXX can't happen */
 294             if (longName)
 295                 sprintf(s, "--%s", longName);
 296             else
 297                 sprintf(s, "-%c", shortName);
 298             con->finalArgv[i] = s;
 299         } else
 300             con->finalArgv[i] = NULL;
 301     }
 302
 303     /*@-nullstate@*/    /* FIX: con->finalArgv[] == NULL */
 304     return 1;
 305     /*@=nullstate@*/
 306 }
 307 /*@=boundswrite@*/
 308
 309 /* Only one of longName, shortName may be set at a time */
 310 static int handleAlias(/*@special@*/ poptContext con,
 311                 /*@null@*/ const char * longName, char shortName,
 312                 /*@exposed@*/ /*@null@*/ const char * nextCharArg)
 313         /*@uses con->aliases, con->numAliases, con->optionStack, con->os,
 314                 con->os->currAlias, con->os->currAlias->option.longName @*/
 315         /*@modifies con @*/
 316 {
 317     poptItem item = con->os->currAlias;
 318     int rc;
 319     int i;
 320
 321     if (item) {
 322         if (longName && (item->option.longName &&
 323                 !strcmp(longName, item->option.longName)))
 324             return 0;
 325         if (shortName && shortName == item->option.shortName)
 326             return 0;
 327     }
 328
 329     if (con->aliases == NULL || con->numAliases <= 0) /* XXX can't happen */
 330         return 0;
 331
 332     for (i = con->numAliases - 1; i >= 0; i--) {
 333         item = con->aliases + i;
 334         if (longName && !(item->option.longName &&
 335                         !strcmp(longName, item->option.longName)))
 336             continue;
 337         else if (shortName != item->option.shortName)
 338             continue;
 339         break;
 340     }
 341     if (i < 0) return 0;
 342
 343     if ((con->os - con->optionStack + 1) == POPT_OPTION_DEPTH)
 344         return POPT_ERROR_OPTSTOODEEP;
 345
 346 /*@-boundsread@*/
 347     if (nextCharArg && *nextCharArg)
 348         con->os->nextCharArg = nextCharArg;
 349 /*@=boundsread@*/
 350
 351     con->os++;
 352     con->os->next = 0;
 353     con->os->stuffed = 0;
 354     con->os->nextArg = NULL;
 355     con->os->nextCharArg = NULL;
 356     con->os->currAlias = con->aliases + i;
 357     rc = poptDupArgv(con->os->currAlias->argc, con->os->currAlias->argv,
 358                 &con->os->argc, &con->os->argv);
 359     con->os->argb = NULL;
 360
 361     return (rc ? rc : 1);
 362 }
 363
 364 /*@-bounds -boundswrite @*/
 365 static int execCommand(poptContext con)
 366         /*@globals internalState @*/
 367         /*@modifies internalState @*/
 368 {
 369     poptItem item = con->doExec;
 370     const char ** argv;
 371     int argc = 0;
 372     int rc;
 373
 374     if (item == NULL) /*XXX can't happen*/
 375         return POPT_ERROR_NOARG;
 376
 377     if (item->argv == NULL || item->argc < 1 ||
 378         (!con->execAbsolute && strchr(item->argv[0], '/')))
 379             return POPT_ERROR_NOARG;
 380
 381     argv = (const char **)malloc(
 382             sizeof(*argv) * (6 + item->argc + con->numLeftovers + con->finalArgvCount));
 383     if (argv == NULL) return POPT_ERROR_MALLOC; /* XXX can't happen */
 384
 385     if (!strchr(item->argv[0], '/') && con->execPath) {
 386         char *s = (char *)alloca(
 387                 strlen(con->execPath) + strlen(item->argv[0]) + sizeof("/"));
 388         sprintf(s, "%s/%s", con->execPath, item->argv[0]);
 389         argv[argc] = s;
 390     } else {
 391         argv[argc] = findProgramPath(item->argv[0]);
 392     }
 393     if (argv[argc++] == NULL) return POPT_ERROR_NOARG;
 394
 395     if (item->argc > 1) {
 396         memcpy(argv + argc, item->argv + 1, sizeof(*argv) * (item->argc - 1));
 397         argc += (item->argc - 1);
 398     }
 399
 400     if (con->finalArgv != NULL && con->finalArgvCount > 0) {
 401         memcpy(argv + argc, con->finalArgv,
 402                 sizeof(*argv) * con->finalArgvCount);
 403         argc += con->finalArgvCount;
 404     }
 405
 406     if (con->leftovers != NULL && con->numLeftovers > 0) {
 407 #if 0
 408         argv[argc++] = "--";
 409 #endif
 410         memcpy(argv + argc, con->leftovers, sizeof(*argv) * con->numLeftovers);
 411         argc += con->numLeftovers;
 412     }
 413
 414     argv[argc] = NULL;
 415
 416 #ifdef __hpux
 417     rc = setresuid(getuid(), getuid(),-1);
 418     if (rc) return POPT_ERROR_ERRNO;
 419 #else
 420 /*
 421  * XXX " ... on BSD systems setuid() should be preferred over setreuid()"
 422  * XXX  sez' Timur Bakeyev <mc@bat.ru>
 423  * XXX  from Norbert Warmuth <nwarmuth@privat.circular.de>
 424  */
 425 #if defined(HAVE_SETUID)
 426     rc = setuid(getuid());
 427     if (rc) return POPT_ERROR_ERRNO;
 428 #elif defined (HAVE_SETREUID)
 429     rc = setreuid(getuid(), getuid()); /*hlauer: not portable to hpux9.01 */
 430     if (rc) return POPT_ERROR_ERRNO;
 431 #else
 432     ; /* Can't drop privileges */
 433 #endif
 434 #endif
 435
 436     if (argv[0] == NULL)
 437         return POPT_ERROR_NOARG;
 438
 439 #ifdef  MYDEBUG
 440 if (_popt_debug)
 441     {   const char ** avp;
 442         fprintf(stderr, "==> execvp(%s) argv[%d]:", argv[0], argc);
 443         for (avp = argv; *avp; avp++)
 444             fprintf(stderr, " '%s'", *avp);
 445         fprintf(stderr, "\n");
 446     }
 447 #endif
 448
 449     rc = execvp(argv[0], (char *const *)argv);
 450     /* notreached */
 451     if (rc) {
 452         return POPT_ERROR_ERRNO;
 453     }
 454
 455     return 0;
 456 }
 457 /*@=bounds =boundswrite @*/
 458
 459 /*@-boundswrite@*/
 460 /*@observer@*/ /*@null@*/ static const struct poptOption *
 461 findOption(const struct poptOption * opt, /*@null@*/ const char * longName,
 462                 char shortName,
 463                 /*@null@*/ /*@out@*/ poptCallbackType * callback,
 464                 /*@null@*/ /*@out@*/ const void ** callbackData,
 465                 int singleDash)
 466         /*@modifies *callback, *callbackData */
 467 {
 468     const struct poptOption * cb = NULL;
 469
 470     /* This happens when a single - is given */
 471     if (singleDash && !shortName && (longName && *longName == '\0'))
 472         shortName = '-';
 473
 474     for (; opt->longName || opt->shortName || opt->arg; opt++) {
 475
 476         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
 477             const struct poptOption * opt2;
 478
 479             /* Recurse on included sub-tables. */
 480             if (opt->arg == NULL) continue;     /* XXX program error */
 481             opt2 = findOption((const struct poptOption *)opt->arg, longName,
 482                               shortName, callback,
 483                               callbackData, singleDash);
 484             if (opt2 == NULL) continue;
 485             /* Sub-table data will be inheirited if no data yet. */
 486             if (!(callback && *callback)) return opt2;
 487             if (!(callbackData && *callbackData == NULL)) return opt2;
 488             /*@-observertrans -dependenttrans @*/
 489             *callbackData = opt->descrip;
 490             /*@=observertrans =dependenttrans @*/
 491             return opt2;
 492         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) {
 493             cb = opt;
 494         } else if (longName && opt->longName &&
 495                    (!singleDash || (opt->argInfo & POPT_ARGFLAG_ONEDASH)) &&
 496                 /*@-nullpass@*/         /* LCL: opt->longName != NULL */
 497                    !strcmp(longName, opt->longName))
 498                 /*@=nullpass@*/
 499         {
 500             break;
 501         } else if (shortName && shortName == opt->shortName) {
 502             break;
 503         }
 504     }
 505
 506     if (!opt->longName && !opt->shortName)
 507         return NULL;
 508     /*@-modobserver -mods @*/
 509     if (callback) *callback = NULL;
 510     if (callbackData) *callbackData = NULL;
 511     if (cb) {
 512         if (callback)
 513         /*@-castfcnptr@*/
 514             *callback = (poptCallbackType)cb->arg;
 515         /*@=castfcnptr@*/
 516         if (!(cb->argInfo & POPT_CBFLAG_INC_DATA)) {
 517             if (callbackData)
 518                 /*@-observertrans@*/    /* FIX: typedef double indirection. */
 519                 *callbackData = cb->descrip;
 520                 /*@=observertrans@*/
 521         }
 522     }
 523     /*@=modobserver =mods @*/
 524
 525     return opt;
 526 }
 527 /*@=boundswrite@*/
 528
 529 static const char * findNextArg(/*@special@*/ poptContext con,
 530                 unsigned argx, int delete_arg)
 531         /*@uses con->optionStack, con->os,
 532                 con->os->next, con->os->argb, con->os->argc, con->os->argv @*/
 533         /*@modifies con @*/
 534 {
 535     struct optionStackEntry * os = con->os;
 536     const char * arg;
 537
 538     do {
 539         int i;
 540         arg = NULL;
 541         while (os->next == os->argc && os > con->optionStack) os--;
 542         if (os->next == os->argc && os == con->optionStack) break;
 543         if (os->argv != NULL)
 544         for (i = os->next; i < os->argc; i++) {
 545             /*@-sizeoftype@*/
 546             if (os->argb && PBM_ISSET(i, os->argb))
 547                 /*@innercontinue@*/ continue;
 548             if (*os->argv[i] == '-')
 549                 /*@innercontinue@*/ continue;
 550             if (--argx > 0)
 551                 /*@innercontinue@*/ continue;
 552             arg = os->argv[i];
 553             if (delete_arg) {
 554                 if (os->argb == NULL) os->argb = (pbm_set *)PBM_ALLOC(os->argc);
 555                 if (os->argb != NULL)   /* XXX can't happen */
 556                 PBM_SET(i, os->argb);
 557             }
 558             /*@innerbreak@*/ break;
 559             /*@=sizeoftype@*/
 560         }
 561         if (os > con->optionStack) os--;
 562     } while (arg == NULL);
 563     return arg;
 564 }
 565
 566 /*@-boundswrite@*/
 567 static /*@only@*/ /*@null@*/ const char *
 568 expandNextArg(/*@special@*/ poptContext con, const char * s)
 569         /*@uses con->optionStack, con->os,
 570                 con->os->next, con->os->argb, con->os->argc, con->os->argv @*/
 571         /*@modifies con @*/
 572 {
 573     const char * a = NULL;
 574     size_t alen;
 575     char *t, *te;
 576     size_t tn = strlen(s) + 1;
 577     char c;
 578
 579     te = t = (char *)malloc(tn);;
 580     if (t == NULL) return NULL;         /* XXX can't happen */
 581     while ((c = *s++) != '\0') {
 582         switch (c) {
 583 #if 0   /* XXX can't do this */
 584         case '\\':      /* escape */
 585             c = *s++;
 586             /*@switchbreak@*/ break;
 587 #endif
 588         case '!':
 589             if (!(s[0] == '#' && s[1] == ':' && s[2] == '+'))
 590                 /*@switchbreak@*/ break;
 591             /* XXX Make sure that findNextArg deletes only next arg. */
 592             if (a == NULL) {
 593                 if ((a = findNextArg(con, 1, 1)) == NULL)
 594                     /*@switchbreak@*/ break;
 595             }
 596             s += 3;
 597
 598             alen = strlen(a);
 599             tn += alen;
 600             *te = '\0';
 601             t = (char *)realloc(t, tn);
 602             te = t + strlen(t);
 603             strncpy(te, a, alen); te += alen;
 604             continue;
 605             /*@notreached@*/ /*@switchbreak@*/ break;
 606         default:
 607             /*@switchbreak@*/ break;
 608         }
 609         *te++ = c;
 610     }
 611     *te = '\0';
 612     t = (char *)realloc(t, strlen(t) + 1); /* XXX memory leak, hard to plug */
 613     return t;
 614 }
 615 /*@=boundswrite@*/
 616
 617 static void poptStripArg(/*@special@*/ poptContext con, int which)
 618         /*@uses con->arg_strip, con->optionStack @*/
 619         /*@defines con->arg_strip @*/
 620         /*@modifies con @*/
 621 {
 622     /*@-sizeoftype@*/
 623     if (con->arg_strip == NULL)
 624         con->arg_strip = (pbm_set *)PBM_ALLOC(con->optionStack[0].argc);
 625     if (con->arg_strip != NULL)         /* XXX can't happen */
 626     PBM_SET(which, con->arg_strip);
 627     /*@=sizeoftype@*/
 628     /*@-compdef@*/ /* LCL: con->arg_strip udefined? */
 629     return;
 630     /*@=compdef@*/
 631 }
 632
 633 int poptSaveLong(long * arg, int argInfo, long aLong)
 634 {
 635     /* XXX Check alignment, may fail on funky platforms. */
 636     if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
 637         return POPT_ERROR_NULLARG;
 638
 639     if (argInfo & POPT_ARGFLAG_NOT)
 640         aLong = ~aLong;
 641     switch (argInfo & POPT_ARGFLAG_LOGICALOPS) {
 642     case 0:
 643         *arg = aLong;
 644         break;
 645     case POPT_ARGFLAG_OR:
 646         *arg |= aLong;
 647         break;
 648     case POPT_ARGFLAG_AND:
 649         *arg &= aLong;
 650         break;
 651     case POPT_ARGFLAG_XOR:
 652         *arg ^= aLong;
 653         break;
 654     default:
 655         return POPT_ERROR_BADOPERATION;
 656         /*@notreached@*/ break;
 657     }
 658     return 0;
 659 }
 660
 661 int poptSaveInt(/*@null@*/ int * arg, int argInfo, long aLong)
 662 {
 663     /* XXX Check alignment, may fail on funky platforms. */
 664     if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
 665         return POPT_ERROR_NULLARG;
 666
 667     if (argInfo & POPT_ARGFLAG_NOT)
 668         aLong = ~aLong;
 669     switch (argInfo & POPT_ARGFLAG_LOGICALOPS) {
 670     case 0:
 671         *arg = aLong;
 672         break;
 673     case POPT_ARGFLAG_OR:
 674         *arg |= aLong;
 675         break;
 676     case POPT_ARGFLAG_AND:
 677         *arg &= aLong;
 678         break;
 679     case POPT_ARGFLAG_XOR:
 680         *arg ^= aLong;
 681         break;
 682     default:
 683         return POPT_ERROR_BADOPERATION;
 684         /*@notreached@*/ break;
 685     }
 686     return 0;
 687 }
 688
 689 /*@-boundswrite@*/
 690 /* returns 'val' element, -1 on last item, POPT_ERROR_* on error */
 691 int poptGetNextOpt(poptContext con)
 692 {
 693     const struct poptOption * opt = NULL;
 694     int done = 0;
 695
 696     if (con == NULL)
 697         return -1;
 698     while (!done) {
 699         const char * origOptString = NULL;
 700         poptCallbackType cb = NULL;
 701         const void * cbData = NULL;
 702         const char * longArg = NULL;
 703         int canstrip = 0;
 704         int shorty = 0;
 705
 706         while (!con->os->nextCharArg && con->os->next == con->os->argc
 707                 && con->os > con->optionStack) {
 708             cleanOSE(con->os--);
 709         }
 710         if (!con->os->nextCharArg && con->os->next == con->os->argc) {
 711             /*@-internalglobs@*/
 712             invokeCallbacksPOST(con, con->options);
 713             /*@=internalglobs@*/
 714             if (con->doExec) return execCommand(con);
 715             return -1;
 716         }
 717
 718         /* Process next long option */
 719         if (!con->os->nextCharArg) {
 720             char * localOptString, * optString;
 721             int thisopt;
 722
 723             /*@-sizeoftype@*/
 724             if (con->os->argb && PBM_ISSET(con->os->next, con->os->argb)) {
 725                 con->os->next++;
 726                 continue;
 727             }
 728             /*@=sizeoftype@*/
 729             thisopt = con->os->next;
 730             if (con->os->argv != NULL)  /* XXX can't happen */
 731             origOptString = con->os->argv[con->os->next++];
 732
 733             if (origOptString == NULL)  /* XXX can't happen */
 734                 return POPT_ERROR_BADOPT;
 735
 736             if (con->restLeftover || *origOptString != '-') {
 737                 if (con->flags & POPT_CONTEXT_POSIXMEHARDER)
 738                     con->restLeftover = 1;
 739                 if (con->flags & POPT_CONTEXT_ARG_OPTS) {
 740                     con->os->nextArg = xstrdup(origOptString);
 741                     return 0;
 742                 }
 743                 if (con->leftovers != NULL)     /* XXX can't happen */
 744                     con->leftovers[con->numLeftovers++] = origOptString;
 745                 continue;
 746             }
 747
 748             /* Make a copy we can hack at */
 749             localOptString = optString =
 750                 strcpy((char *)alloca(strlen(origOptString) + 1),
 751                        origOptString);
 752
 753             if (optString[0] == '\0')
 754                 return POPT_ERROR_BADOPT;
 755
 756             if (optString[1] == '-' && !optString[2]) {
 757                 con->restLeftover = 1;
 758                 continue;
 759             } else {
 760                 char *oe;
 761                 int singleDash;
 762
 763                 optString++;
 764                 if (*optString == '-')
 765                     singleDash = 0, optString++;
 766                 else
 767                     singleDash = 1;
 768
 769                 /* XXX aliases with arg substitution need "--alias=arg" */
 770                 if (handleAlias(con, optString, '\0', NULL))
 771                     continue;
 772
 773                 if (handleExec(con, optString, '\0'))
 774                     continue;
 775
 776                 /* Check for "--long=arg" option. */
 777                 for (oe = optString; *oe && *oe != '='; oe++)
 778                     {};
 779                 if (*oe == '=') {
 780                     *oe++ = '\0';
 781                     /* XXX longArg is mapped back to persistent storage. */
 782                     longArg = origOptString + (oe - localOptString);
 783                 }
 784
 785                 opt = findOption(con->options, optString, '\0', &cb, &cbData,
 786                                  singleDash);
 787                 if (!opt && !singleDash)
 788                     return POPT_ERROR_BADOPT;
 789             }
 790
 791             if (!opt) {
 792                 con->os->nextCharArg = origOptString + 1;
 793             } else {
 794                 if (con->os == con->optionStack &&
 795                    opt->argInfo & POPT_ARGFLAG_STRIP)
 796                 {
 797                     canstrip = 1;
 798                     poptStripArg(con, thisopt);
 799                 }
 800                 shorty = 0;
 801             }
 802         }
 803
 804         /* Process next short option */
 805         /*@-branchstate@*/              /* FIX: W2DO? */
 806         if (con->os->nextCharArg) {
 807             origOptString = con->os->nextCharArg;
 808
 809             con->os->nextCharArg = NULL;
 810
 811             if (handleAlias(con, NULL, *origOptString, origOptString + 1))
 812                 continue;
 813
 814             if (handleExec(con, NULL, *origOptString)) {
 815                 /* Restore rest of short options for further processing */
 816                 origOptString++;
 817                 if (*origOptString != '\0')
 818                     con->os->nextCharArg = origOptString;
 819                 continue;
 820             }
 821
 822             opt = findOption(con->options, NULL, *origOptString, &cb,
 823                              &cbData, 0);
 824             if (!opt)
 825                 return POPT_ERROR_BADOPT;
 826             shorty = 1;
 827
 828             origOptString++;
 829             if (*origOptString != '\0')
 830                 con->os->nextCharArg = origOptString;
 831         }
 832         /*@=branchstate@*/
 833
 834         if (opt == NULL) return POPT_ERROR_BADOPT;      /* XXX can't happen */
 835         if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE) {
 836             if (poptSaveInt((int *)opt->arg, opt->argInfo, 1L))
 837                 return POPT_ERROR_BADOPERATION;
 838         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL) {
 839             if (opt->arg) {
 840                 if (poptSaveInt((int *)opt->arg, opt->argInfo, (long)opt->val))
 841                     return POPT_ERROR_BADOPERATION;
 842             }
 843         } else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
 844             con->os->nextArg = (const char *)_free(con->os->nextArg);
 845             /*@-usedef@*/       /* FIX: W2DO? */
 846             if (longArg) {
 847             /*@=usedef@*/
 848                 longArg = expandNextArg(con, longArg);
 849                 con->os->nextArg = longArg;
 850             } else if (con->os->nextCharArg) {
 851                 longArg = expandNextArg(con, con->os->nextCharArg);
 852                 con->os->nextArg = longArg;
 853                 con->os->nextCharArg = NULL;
 854             } else {
 855                 while (con->os->next == con->os->argc &&
 856                        con->os > con->optionStack) {
 857                     cleanOSE(con->os--);
 858                 }
 859                 if (con->os->next == con->os->argc) {
 860                     if (!(opt->argInfo & POPT_ARGFLAG_OPTIONAL))
 861                         /*@-compdef@*/  /* FIX: con->os->argv not defined */
 862                         return POPT_ERROR_NOARG;
 863                         /*@=compdef@*/
 864                     con->os->nextArg = NULL;
 865                 } else {
 866
 867                     /*
 868                      * Make sure this isn't part of a short arg or the
 869                      * result of an alias expansion.
 870                      */
 871                     if (con->os == con->optionStack &&
 872                         (opt->argInfo & POPT_ARGFLAG_STRIP) &&
 873                         canstrip) {
 874                         poptStripArg(con, con->os->next);
 875                     }
 876
 877                     if (con->os->argv != NULL) {        /* XXX can't happen */
 878                         /* XXX watchout: subtle side-effects live here. */
 879                         longArg = con->os->argv[con->os->next++];
 880                         longArg = expandNextArg(con, longArg);
 881                         con->os->nextArg = longArg;
 882                     }
 883                 }
 884             }
 885             longArg = NULL;
 886
 887             if (opt->arg) {
 888                 switch (opt->argInfo & POPT_ARG_MASK) {
 889                 case POPT_ARG_STRING:
 890                     /* XXX memory leak, hard to plug */
 891                     *((const char **) opt->arg) = (con->os->nextArg)
 892                         ? xstrdup(con->os->nextArg) : NULL;
 893                     /*@switchbreak@*/ break;
 894
 895                 case POPT_ARG_INT:
 896                 case POPT_ARG_LONG:
 897                 {   long aLong = 0;
 898                     char *end;
 899
 900                     if (con->os->nextArg) {
 901                         aLong = strtol(con->os->nextArg, &end, 0);
 902                         if (!(end && *end == '\0'))
 903                             return POPT_ERROR_BADNUMBER;
 904                     }
 905
 906                     if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_LONG) {
 907                         if (aLong == LONG_MIN || aLong == LONG_MAX)
 908                             return POPT_ERROR_OVERFLOW;
 909                         if (poptSaveLong((long *)opt->arg, opt->argInfo, aLong))
 910                             return POPT_ERROR_BADOPERATION;
 911                     } else {
 912                         if (aLong > INT_MAX || aLong < INT_MIN)
 913                             return POPT_ERROR_OVERFLOW;
 914                         if (poptSaveInt((int *)opt->arg, opt->argInfo, aLong))
 915                             return POPT_ERROR_BADOPERATION;
 916                     }
 917                 }   /*@switchbreak@*/ break;
 918
 919                 case POPT_ARG_FLOAT:
 920                 case POPT_ARG_DOUBLE:
 921                 {   double aDouble = 0.0;
 922                     char *end;
 923
 924                     if (con->os->nextArg) {
 925                         /*@-mods@*/
 926                         int saveerrno = errno;
 927                         errno = 0;
 928                         aDouble = strtod(con->os->nextArg, &end);
 929                         if (errno == ERANGE)
 930                             return POPT_ERROR_OVERFLOW;
 931                         errno = saveerrno;
 932                         /*@=mods@*/
 933                         if (*end != '\0')
 934                             return POPT_ERROR_BADNUMBER;
 935                     }
 936
 937                     if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_DOUBLE) {
 938                         *((double *) opt->arg) = aDouble;
 939                     } else {
 940 #ifndef _ABS
 941 #define _ABS(a) ((((a) - 0.0) < DBL_EPSILON) ? -(a) : (a))
 942 #endif
 943                         if ((_ABS(aDouble) - FLT_MAX) > DBL_EPSILON)
 944                             return POPT_ERROR_OVERFLOW;
 945                         if ((FLT_MIN - _ABS(aDouble)) > DBL_EPSILON)
 946                             return POPT_ERROR_OVERFLOW;
 947                         *((float *) opt->arg) = aDouble;
 948                     }
 949                 }   /*@switchbreak@*/ break;
 950                 default:
 951                     fprintf(stdout,
 952                         POPT_("option type (%d) not implemented in popt\n"),
 953                         (opt->argInfo & POPT_ARG_MASK));
 954                     exit(EXIT_FAILURE);
 955                     /*@notreached@*/ /*@switchbreak@*/ break;
 956                 }
 957             }
 958         }
 959
 960         if (cb) {
 961             /*@-internalglobs@*/
 962             invokeCallbacksOPTION(con, con->options, opt, cbData, shorty);
 963             /*@=internalglobs@*/
 964         } else if (opt->val && ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL))
 965             done = 1;
 966
 967         if ((con->finalArgvCount + 2) >= (con->finalArgvAlloced)) {
 968             con->finalArgvAlloced += 10;
 969             con->finalArgv = (const char **)realloc(con->finalArgv,
 970                             sizeof(*con->finalArgv) * con->finalArgvAlloced);
 971         }
 972
 973         if (con->finalArgv != NULL)
 974         {   char *s = (char *)malloc(
 975                 (opt->longName ? strlen(opt->longName) : 0) + 3);
 976             if (s != NULL) {    /* XXX can't happen */
 977                 if (opt->longName)
 978                     sprintf(s, "%s%s",
 979                         ((opt->argInfo & POPT_ARGFLAG_ONEDASH) ? "-" : "--"),
 980                         opt->longName);
 981                 else
 982                     sprintf(s, "-%c", opt->shortName);
 983                 con->finalArgv[con->finalArgvCount++] = s;
 984             } else
 985                 con->finalArgv[con->finalArgvCount++] = NULL;
 986         }
 987
 988         if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE)
 989             /*@-ifempty@*/ ; /*@=ifempty@*/
 990         else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL)
 991             /*@-ifempty@*/ ; /*@=ifempty@*/
 992         else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
 993             if (con->finalArgv != NULL && con->os->nextArg)
 994                 con->finalArgv[con->finalArgvCount++] =
 995                         /*@-nullpass@*/ /* LCL: con->os->nextArg != NULL */
 996                         xstrdup(con->os->nextArg);
 997                         /*@=nullpass@*/
 998         }
 999     }
1000
1001     return (opt ? opt->val : -1);       /* XXX can't happen */
1002 }
1003 /*@=boundswrite@*/
1004
1005 const char * poptGetOptArg(poptContext con)
1006 {
1007     const char * ret = NULL;
1008     /*@-branchstate@*/
1009     if (con) {
1010         ret = con->os->nextArg;
1011         con->os->nextArg = NULL;
1012     }
1013     /*@=branchstate@*/
1014     return ret;
1015 }
1016
1017 const char * poptGetArg(poptContext con)
1018 {
1019     const char * ret = NULL;
1020     if (con && con->leftovers != NULL && con->nextLeftover < con->numLeftovers)
1021         ret = con->leftovers[con->nextLeftover++];
1022     return ret;
1023 }
1024
1025 const char * poptPeekArg(poptContext con)
1026 {
1027     const char * ret = NULL;
1028     if (con && con->leftovers != NULL && con->nextLeftover < con->numLeftovers)
1029         ret = con->leftovers[con->nextLeftover];
1030     return ret;
1031 }
1032
1033 /*@-boundswrite@*/
1034 const char ** poptGetArgs(poptContext con)
1035 {
1036     if (con == NULL ||
1037         con->leftovers == NULL || con->numLeftovers == con->nextLeftover)
1038         return NULL;
1039
1040     /* some apps like [like RPM ;-) ] need this NULL terminated */
1041     con->leftovers[con->numLeftovers] = NULL;
1042
1043     /*@-nullret -nullstate @*/  /* FIX: typedef double indirection. */
1044     return (con->leftovers + con->nextLeftover);
1045     /*@=nullret =nullstate @*/
1046 }
1047 /*@=boundswrite@*/
1048
1049 poptContext poptFreeContext(poptContext con)
1050 {
1051     poptItem item;
1052     int i;
1053
1054     if (con == NULL) return con;
1055     poptResetContext(con);
1056     con->os->argb = (pbm_set *)_free(con->os->argb);
1057
1058     if (con->aliases != NULL)
1059     for (i = 0; i < con->numAliases; i++) {
1060         item = con->aliases + i;
1061         /*@-modobserver -observertrans -dependenttrans@*/
1062         item->option.longName = (const char *)_free(item->option.longName);
1063         item->option.descrip = (const char *)_free(item->option.descrip);
1064         item->option.argDescrip = (const char *)_free(item->option.argDescrip);
1065         /*@=modobserver =observertrans =dependenttrans@*/
1066         item->argv = (const char **)_free(item->argv);
1067     }
1068     con->aliases = (poptItem)_free(con->aliases);
1069
1070     if (con->execs != NULL)
1071     for (i = 0; i < con->numExecs; i++) {
1072         item = con->execs + i;
1073         /*@-modobserver -observertrans -dependenttrans@*/
1074         item->option.longName = (const char *)_free(item->option.longName);
1075         item->option.descrip = (const char *)_free(item->option.descrip);
1076         item->option.argDescrip = (const char *)_free(item->option.argDescrip);
1077         /*@=modobserver =observertrans =dependenttrans@*/
1078         item->argv = (const char **)_free(item->argv);
1079     }
1080     con->execs = (poptItem)_free(con->execs);
1081
1082     con->leftovers = (const char **)_free(con->leftovers);
1083     con->finalArgv = (const char **)_free(con->finalArgv);
1084     con->appName = (const char *)_free(con->appName);
1085     con->otherHelp = (const char *)_free(con->otherHelp);
1086     con->execPath = (const char *)_free(con->execPath);
1087     con->arg_strip = (pbm_set *)PBM_FREE(con->arg_strip);
1088
1089     con = (poptContext)_free(con);
1090     return con;
1091 }
1092
1093 int poptAddAlias(poptContext con, struct poptAlias alias,
1094                 /*@unused@*/ int flags)
1095 {
1096     poptItem item = (poptItem)alloca(sizeof(*item));
1097     memset(item, 0, sizeof(*item));
1098     item->option.longName = alias.longName;
1099     item->option.shortName = alias.shortName;
1100     item->option.argInfo = POPT_ARGFLAG_DOC_HIDDEN;
1101     item->option.arg = 0;
1102     item->option.val = 0;
1103     item->option.descrip = NULL;
1104     item->option.argDescrip = NULL;
1105     item->argc = alias.argc;
1106     item->argv = alias.argv;
1107     return poptAddItem(con, item, 0);
1108 }
1109
1110 /*@-boundswrite@*/
1111 /*@-mustmod@*/ /* LCL: con not modified? */
1112 int poptAddItem(poptContext con, poptItem newItem, int flags)
1113 {
1114     poptItem * items, item;
1115     int * nitems;
1116
1117     switch (flags) {
1118     case 1:
1119         items = &con->execs;
1120         nitems = &con->numExecs;
1121         break;
1122     case 0:
1123         items = &con->aliases;
1124         nitems = &con->numAliases;
1125         break;
1126     default:
1127         return 1;
1128         /*@notreached@*/ break;
1129     }
1130
1131     *items = (poptItem)realloc((*items), ((*nitems) + 1) * sizeof(**items));
1132     if ((*items) == NULL)
1133         return 1;
1134
1135     item = (*items) + (*nitems);
1136
1137     item->option.longName =
1138         (newItem->option.longName ? xstrdup(newItem->option.longName) : NULL);
1139     item->option.shortName = newItem->option.shortName;
1140     item->option.argInfo = newItem->option.argInfo;
1141     item->option.arg = newItem->option.arg;
1142     item->option.val = newItem->option.val;
1143     item->option.descrip =
1144         (newItem->option.descrip ? xstrdup(newItem->option.descrip) : NULL);
1145     item->option.argDescrip =
1146        (newItem->option.argDescrip ? xstrdup(newItem->option.argDescrip) : NULL);
1147     item->argc = newItem->argc;
1148     item->argv = newItem->argv;
1149
1150     (*nitems)++;
1151
1152     return 0;
1153 }
1154 /*@=mustmod@*/
1155 /*@=boundswrite@*/
1156
1157 const char * poptBadOption(poptContext con, int flags)
1158 {
1159     struct optionStackEntry * os = NULL;
1160
1161     if (con != NULL)
1162         os = (flags & POPT_BADOPTION_NOALIAS) ? con->optionStack : con->os;
1163
1164     /*@-nullderef@*/    /* LCL: os->argv != NULL */
1165     return (os && os->argv ? os->argv[os->next - 1] : NULL);
1166     /*@=nullderef@*/
1167 }
1168
1169 const char *poptStrerror(const int error)
1170 {
1171     switch (error) {
1172       case POPT_ERROR_NOARG:
1173         return POPT_("missing argument");
1174       case POPT_ERROR_BADOPT:
1175         return POPT_("unknown option");
1176       case POPT_ERROR_BADOPERATION:
1177         return POPT_("mutually exclusive logical operations requested");
1178       case POPT_ERROR_NULLARG:
1179         return POPT_("opt->arg should not be NULL");
1180       case POPT_ERROR_OPTSTOODEEP:
1181         return POPT_("aliases nested too deeply");
1182       case POPT_ERROR_BADQUOTE:
1183         return POPT_("error in parameter quoting");
1184       case POPT_ERROR_BADNUMBER:
1185         return POPT_("invalid numeric value");
1186       case POPT_ERROR_OVERFLOW:
1187         return POPT_("number too large or too small");
1188       case POPT_ERROR_MALLOC:
1189         return POPT_("memory allocation failed");
1190       case POPT_ERROR_ERRNO:
1191         return strerror(errno);
1192       default:
1193         return POPT_("unknown error");
1194     }
1195 }
1196
1197 int poptStuffArgs(poptContext con, const char ** argv)
1198 {
1199     int argc;
1200     int rc;
1201
1202     if ((con->os - con->optionStack) == POPT_OPTION_DEPTH)
1203         return POPT_ERROR_OPTSTOODEEP;
1204
1205     for (argc = 0; argv[argc]; argc++)
1206         {};
1207
1208     con->os++;
1209     con->os->next = 0;
1210     con->os->nextArg = NULL;
1211     con->os->nextCharArg = NULL;
1212     con->os->currAlias = NULL;
1213     rc = poptDupArgv(argc, argv, &con->os->argc, &con->os->argv);
1214     con->os->argb = NULL;
1215     con->os->stuffed = 1;
1216
1217     return rc;
1218 }
1219
1220 const char * poptGetInvocationName(poptContext con)
1221 {
1222     return (con->os->argv ? con->os->argv[0] : "");
1223 }
1224
1225 /*@-boundswrite@*/
1226 int poptStrippedArgv(poptContext con, int argc, char ** argv)
1227 {
1228     int numargs = argc;
1229     int j = 1;
1230     int i;
1231
1232     /*@-sizeoftype@*/
1233     if (con->arg_strip)
1234     for (i = 1; i < argc; i++) {
1235         if (PBM_ISSET(i, con->arg_strip))
1236             numargs--;
1237     }
1238
1239     for (i = 1; i < argc; i++) {
1240         if (con->arg_strip && PBM_ISSET(i, con->arg_strip))
1241             continue;
1242         argv[j] = (j < numargs) ? argv[i] : NULL;
1243         j++;
1244     }
1245     /*@=sizeoftype@*/
1246
1247     return numargs;
1248 }
1249 /*@=boundswrite@*/