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 #ifndef DBL_EPSILON
  22 #define DBL_EPSILON 2.2204460492503131e-16
  23 #endif
  24
  25 #ifdef  MYDEBUG
  26 /*@unchecked@*/
  27 int _popt_debug = 0;
  28 #endif
  29
  30 #if !defined(HAVE_STRERROR) && !defined(__LCLINT__)
  31 static char * strerror(int errno)
  32 {
  33     extern int sys_nerr;
  34     extern char * sys_errlist[];
  35
  36     if ((0 <= errno) && (errno < sys_nerr))
  37         return sys_errlist[errno];
  38     else
  39         return POPT_("unknown errno");
  40 }
  41 #endif
  42
  43 #ifdef MYDEBUG
  44 /*@unused@*/
  45 static void prtcon(const char *msg, poptContext con)
  46 {
  47     if (msg) fprintf(stderr, "%s", msg);
  48     fprintf(stderr, "\tcon %p os %p nextCharArg \"%s\" nextArg \"%s\" argv[%d] \"%s\"\n",
  49         con, con->os,
  50         (con->os->nextCharArg ? con->os->nextCharArg : ""),
  51         (con->os->nextArg ? con->os->nextArg : ""),
  52         con->os->next,
  53         (con->os->argv && con->os->argv[con->os->next]
  54                 ? con->os->argv[con->os->next] : ""));
  55 }
  56 #endif
  57
  58 void poptSetExecPath(poptContext con, const char * path, int allowAbsolute)
  59 {
  60     con->execPath = _free(con->execPath);
  61     con->execPath = xstrdup(path);
  62     con->execAbsolute = allowAbsolute;
  63     /*@-nullstate@*/ /* LCL: con->execPath not NULL */
  64     return;
  65     /*@=nullstate@*/
  66 }
  67
  68 static void invokeCallbacksPRE(poptContext con, const struct poptOption * opt)
  69         /*@globals internalState@*/
  70         /*@modifies internalState@*/
  71 {
  72     if (opt != NULL)
  73     for (; opt->longName || opt->shortName || opt->arg; opt++) {
  74         if (opt->arg == NULL) continue;         /* XXX program error. */
  75         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
  76             void * arg = opt->arg;
  77 /*@-branchstate@*/
  78             /* XXX sick hack to preserve pretense of ABI. */
  79             if (arg == poptHelpOptions) arg = poptHelpOptionsI18N;
  80 /*@=branchstate@*/
  81             /* Recurse on included sub-tables. */
  82             invokeCallbacksPRE(con, arg);
  83         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
  84                    (opt->argInfo & POPT_CBFLAG_PRE))
  85         {   /*@-castfcnptr@*/
  86             poptCallbackType cb = (poptCallbackType)opt->arg;
  87             /*@=castfcnptr@*/
  88             /* Perform callback. */
  89             /*@-noeffectuncon @*/
  90             cb(con, POPT_CALLBACK_REASON_PRE, NULL, NULL, opt->descrip);
  91             /*@=noeffectuncon @*/
  92         }
  93     }
  94 }
  95
  96 static void invokeCallbacksPOST(poptContext con, const struct poptOption * opt)
  97         /*@globals internalState@*/
  98         /*@modifies internalState@*/
  99 {
 100     if (opt != NULL)
 101     for (; opt->longName || opt->shortName || opt->arg; opt++) {
 102         if (opt->arg == NULL) continue;         /* XXX program error. */
 103         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
 104             void * arg = opt->arg;
 105 /*@-branchstate@*/
 106             /* XXX sick hack to preserve pretense of ABI. */
 107             if (arg == poptHelpOptions) arg = poptHelpOptionsI18N;
 108 /*@=branchstate@*/
 109             /* Recurse on included sub-tables. */
 110             invokeCallbacksPOST(con, arg);
 111         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
 112                    (opt->argInfo & POPT_CBFLAG_POST))
 113         {   /*@-castfcnptr@*/
 114             poptCallbackType cb = (poptCallbackType)opt->arg;
 115             /*@=castfcnptr@*/
 116             /* Perform callback. */
 117             /*@-noeffectuncon @*/
 118             cb(con, POPT_CALLBACK_REASON_POST, NULL, NULL, opt->descrip);
 119             /*@=noeffectuncon @*/
 120         }
 121     }
 122 }
 123
 124 static void invokeCallbacksOPTION(poptContext con,
 125                                   const struct poptOption * opt,
 126                                   const struct poptOption * myOpt,
 127                                   /*@null@*/ const void * myData, int shorty)
 128         /*@globals internalState@*/
 129         /*@modifies internalState@*/
 130 {
 131     const struct poptOption * cbopt = NULL;
 132
 133     if (opt != NULL)
 134     for (; opt->longName || opt->shortName || opt->arg; opt++) {
 135         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
 136             void * arg = opt->arg;
 137 /*@-branchstate@*/
 138             /* XXX sick hack to preserve pretense of ABI. */
 139             if (arg == poptHelpOptions) arg = poptHelpOptionsI18N;
 140 /*@=branchstate@*/
 141             /* Recurse on included sub-tables. */
 142             if (opt->arg != NULL)       /* XXX program error */
 143                 invokeCallbacksOPTION(con, opt->arg, myOpt, myData, shorty);
 144         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
 145                   !(opt->argInfo & POPT_CBFLAG_SKIPOPTION)) {
 146             /* Save callback info. */
 147             cbopt = opt;
 148         } else if (cbopt != NULL &&
 149                    ((myOpt->shortName && opt->shortName && shorty &&
 150                         myOpt->shortName == opt->shortName) ||
 151                     (myOpt->longName && opt->longName &&
 152                 /*@-nullpass@*/         /* LCL: opt->longName != NULL */
 153                         !strcmp(myOpt->longName, opt->longName)))
 154                 /*@=nullpass@*/
 155                    )
 156         {   /*@-castfcnptr@*/
 157             poptCallbackType cb = (poptCallbackType)cbopt->arg;
 158             /*@=castfcnptr@*/
 159             const void * cbData = (cbopt->descrip ? cbopt->descrip : myData);
 160             /* Perform callback. */
 161             if (cb != NULL) {   /* XXX program error */
 162                 /*@-noeffectuncon @*/
 163                 cb(con, POPT_CALLBACK_REASON_OPTION, myOpt,
 164                         con->os->nextArg, cbData);
 165                 /*@=noeffectuncon @*/
 166             }
 167             /* Terminate (unless explcitly continuing). */
 168             if (!(cbopt->argInfo & POPT_CBFLAG_CONTINUE))
 169                 return;
 170         }
 171     }
 172 }
 173
 174 poptContext poptGetContext(const char * name, int argc, const char ** argv,
 175                            const struct poptOption * options, int flags)
 176 {
 177     poptContext con = malloc(sizeof(*con));
 178
 179     if (con == NULL) return NULL;       /* XXX can't happen */
 180     memset(con, 0, sizeof(*con));
 181
 182     con->os = con->optionStack;
 183     con->os->argc = argc;
 184     /*@-dependenttrans -assignexpose@*/ /* FIX: W2DO? */
 185     con->os->argv = argv;
 186     /*@=dependenttrans =assignexpose@*/
 187     con->os->argb = NULL;
 188
 189     if (!(flags & POPT_CONTEXT_KEEP_FIRST))
 190         con->os->next = 1;                      /* skip argv[0] */
 191
 192     con->leftovers = calloc( (argc + 1), sizeof(*con->leftovers) );
 193     /*@-dependenttrans -assignexpose@*/ /* FIX: W2DO? */
 194     con->options = options;
 195     /*@=dependenttrans =assignexpose@*/
 196     con->aliases = NULL;
 197     con->numAliases = 0;
 198     con->flags = flags;
 199     con->execs = NULL;
 200     con->numExecs = 0;
 201     con->finalArgvAlloced = argc * 2;
 202     con->finalArgv = calloc( con->finalArgvAlloced, sizeof(*con->finalArgv) );
 203     con->execAbsolute = 1;
 204     con->arg_strip = NULL;
 205
 206     if (getenv("POSIXLY_CORRECT") || getenv("POSIX_ME_HARDER"))
 207         con->flags |= POPT_CONTEXT_POSIXMEHARDER;
 208
 209     if (name) {
 210         size_t bufsize = strlen(name) + 1;
 211         char * t = malloc(bufsize);
 212         if (t) {
 213             strlcpy(t, name, bufsize);
 214             con->appName = t;
 215         }
 216     }
 217
 218     /*@-internalglobs@*/
 219     invokeCallbacksPRE(con, con->options);
 220     /*@=internalglobs@*/
 221
 222     return con;
 223 }
 224
 225 static void cleanOSE(/*@special@*/ struct optionStackEntry *os)
 226         /*@uses os @*/
 227         /*@releases os->nextArg, os->argv, os->argb @*/
 228         /*@modifies os @*/
 229 {
 230     os->nextArg = _free(os->nextArg);
 231     os->argv = _free(os->argv);
 232     os->argb = PBM_FREE(os->argb);
 233 }
 234
 235 /*@-boundswrite@*/
 236 void poptResetContext(poptContext con)
 237 {
 238     int i;
 239
 240     if (con == NULL) return;
 241     while (con->os > con->optionStack) {
 242         cleanOSE(con->os--);
 243     }
 244     con->os->argb = PBM_FREE(con->os->argb);
 245     con->os->currAlias = NULL;
 246     con->os->nextCharArg = NULL;
 247     con->os->nextArg = NULL;
 248     con->os->next = 1;                  /* skip argv[0] */
 249
 250     con->numLeftovers = 0;
 251     con->nextLeftover = 0;
 252     con->restLeftover = 0;
 253     con->doExec = NULL;
 254
 255     if (con->finalArgv != NULL)
 256     for (i = 0; i < con->finalArgvCount; i++) {
 257         /*@-unqualifiedtrans@*/         /* FIX: typedef double indirection. */
 258         con->finalArgv[i] = _free(con->finalArgv[i]);
 259         /*@=unqualifiedtrans@*/
 260     }
 261
 262     con->finalArgvCount = 0;
 263     con->arg_strip = PBM_FREE(con->arg_strip);
 264     /*@-nullstate@*/    /* FIX: con->finalArgv != NULL */
 265     return;
 266     /*@=nullstate@*/
 267 }
 268 /*@=boundswrite@*/
 269
 270 /* Only one of longName, shortName should be set, not both. */
 271 /*@-boundswrite@*/
 272 static int handleExec(/*@special@*/ poptContext con,
 273                 /*@null@*/ const char * longName, char shortName)
 274         /*@uses con->execs, con->numExecs, con->flags, con->doExec,
 275                 con->finalArgv, con->finalArgvAlloced, con->finalArgvCount @*/
 276         /*@modifies con @*/
 277 {
 278     poptItem item;
 279     int i;
 280
 281     if (con->execs == NULL || con->numExecs <= 0) /* XXX can't happen */
 282         return 0;
 283
 284     for (i = con->numExecs - 1; i >= 0; i--) {
 285         item = con->execs + i;
 286         if (longName && !(item->option.longName &&
 287                         !strcmp(longName, item->option.longName)))
 288             continue;
 289         else if (shortName != item->option.shortName)
 290             continue;
 291         break;
 292     }
 293     if (i < 0) return 0;
 294
 295
 296     if (con->flags & POPT_CONTEXT_NO_EXEC)
 297         return 1;
 298
 299     if (con->doExec == NULL) {
 300         con->doExec = con->execs + i;
 301         return 1;
 302     }
 303
 304     /* We already have an exec to do; remember this option for next
 305        time 'round */
 306     if ((con->finalArgvCount + 1) >= (con->finalArgvAlloced)) {
 307         con->finalArgvAlloced += 10;
 308         con->finalArgv = realloc(con->finalArgv,
 309                         sizeof(*con->finalArgv) * con->finalArgvAlloced);
 310     }
 311
 312     i = con->finalArgvCount++;
 313     if (con->finalArgv != NULL) /* XXX can't happen */
 314     {   size_t bufsize = (longName ? strlen(longName) : 0) + 3;
 315         char *s  = malloc(bufsize);
 316         if (s != NULL) {        /* XXX can't happen */
 317             if (longName)
 318                 snprintf(s, bufsize, "--%s", longName);
 319             else
 320                 snprintf(s, bufsize, "-%c", shortName);
 321             con->finalArgv[i] = s;
 322         } else
 323             con->finalArgv[i] = NULL;
 324     }
 325
 326     /*@-nullstate@*/    /* FIX: con->finalArgv[] == NULL */
 327     return 1;
 328     /*@=nullstate@*/
 329 }
 330 /*@=boundswrite@*/
 331
 332 /* Only one of longName, shortName may be set at a time */
 333 static int handleAlias(/*@special@*/ poptContext con,
 334                 /*@null@*/ const char * longName, char shortName,
 335                 /*@exposed@*/ /*@null@*/ const char * nextCharArg)
 336         /*@uses con->aliases, con->numAliases, con->optionStack, con->os,
 337                 con->os->currAlias, con->os->currAlias->option.longName @*/
 338         /*@modifies con @*/
 339 {
 340     poptItem item = con->os->currAlias;
 341     int rc;
 342     int i;
 343
 344     if (item) {
 345         if (longName && (item->option.longName &&
 346                 !strcmp(longName, item->option.longName)))
 347             return 0;
 348         if (shortName && shortName == item->option.shortName)
 349             return 0;
 350     }
 351
 352     if (con->aliases == NULL || con->numAliases <= 0) /* XXX can't happen */
 353         return 0;
 354
 355     for (i = con->numAliases - 1; i >= 0; i--) {
 356         item = con->aliases + i;
 357         if (longName && !(item->option.longName &&
 358                         !strcmp(longName, item->option.longName)))
 359             continue;
 360         else if (shortName != item->option.shortName)
 361             continue;
 362         break;
 363     }
 364     if (i < 0) return 0;
 365
 366     if ((con->os - con->optionStack + 1) == POPT_OPTION_DEPTH)
 367         return POPT_ERROR_OPTSTOODEEP;
 368
 369 /*@-boundsread@*/
 370     if (nextCharArg && *nextCharArg)
 371         con->os->nextCharArg = nextCharArg;
 372 /*@=boundsread@*/
 373
 374     con->os++;
 375     con->os->next = 0;
 376     con->os->stuffed = 0;
 377     con->os->nextArg = NULL;
 378     con->os->nextCharArg = NULL;
 379     con->os->currAlias = con->aliases + i;
 380     rc = poptDupArgv(con->os->currAlias->argc, con->os->currAlias->argv,
 381                 &con->os->argc, &con->os->argv);
 382     con->os->argb = NULL;
 383
 384     return (rc ? rc : 1);
 385 }
 386
 387 /*@-bounds -boundswrite @*/
 388 static int execCommand(poptContext con)
 389         /*@globals internalState @*/
 390         /*@modifies internalState @*/
 391 {
 392     poptItem item = con->doExec;
 393     const char ** argv;
 394     int argc = 0;
 395
 396     if (item == NULL) /*XXX can't happen*/
 397         return POPT_ERROR_NOARG;
 398
 399     if (item->argv == NULL || item->argc < 1 ||
 400         (!con->execAbsolute && strchr(item->argv[0], '/')))
 401             return POPT_ERROR_NOARG;
 402
 403     argv = malloc(sizeof(*argv) *
 404                         (6 + item->argc + con->numLeftovers + con->finalArgvCount));
 405     if (argv == NULL) return POPT_ERROR_MALLOC;
 406
 407     if (!strchr(item->argv[0], '/') && con->execPath != NULL) {
 408         size_t bufsize = strlen(con->execPath) + strlen(item->argv[0]) + sizeof "/";
 409         char *s = alloca(bufsize);
 410         snprintf(s, bufsize, "%s/%s", con->execPath, item->argv[0]);
 411         argv[argc] = s;
 412     } else
 413         argv[argc] = findProgramPath(item->argv[0]);
 414     if (argv[argc++] == NULL) return POPT_ERROR_NOARG;
 415
 416     if (item->argc > 1) {
 417         memcpy(argv + argc, item->argv + 1, sizeof(*argv) * (item->argc - 1));
 418         argc += (item->argc - 1);
 419     }
 420
 421     if (con->finalArgv != NULL && con->finalArgvCount > 0) {
 422         memcpy(argv + argc, con->finalArgv,
 423                 sizeof(*argv) * con->finalArgvCount);
 424         argc += con->finalArgvCount;
 425     }
 426
 427     if (con->leftovers != NULL && con->numLeftovers > 0) {
 428         memcpy(argv + argc, con->leftovers, sizeof(*argv) * con->numLeftovers);
 429         argc += con->numLeftovers;
 430     }
 431
 432     argv[argc] = NULL;
 433
 434   {
 435 #ifdef __hpux
 436     int rc = setresgid(getgid(), getgid(),-1);
 437     if (rc) return POPT_ERROR_ERRNO;
 438     rc = setresuid(getuid(), getuid(),-1);
 439     if (rc) return POPT_ERROR_ERRNO;
 440 #else
 441 /*
 442  * XXX " ... on BSD systems setuid() should be preferred over setreuid()"
 443  * XXX  sez' Timur Bakeyev <mc@bat.ru>
 444  * XXX  from Norbert Warmuth <nwarmuth@privat.circular.de>
 445  */
 446 #if defined(HAVE_SETUID)
 447     int rc = setgid(getgid());
 448     if (rc) return POPT_ERROR_ERRNO;
 449     rc = setuid(getuid());
 450     if (rc) return POPT_ERROR_ERRNO;
 451 #elif defined (HAVE_SETREUID)
 452     int rc = setregid(getgid(), getgid());
 453     if (rc) return POPT_ERROR_ERRNO;
 454     rc = setreuid(getuid(), getuid());
 455     if (rc) return POPT_ERROR_ERRNO;
 456 #else
 457     ; /* Can't drop privileges */
 458 #endif
 459 #endif
 460   }
 461
 462     if (argv[0] == NULL)
 463         return POPT_ERROR_NOARG;
 464
 465 #ifdef  MYDEBUG
 466 if (_popt_debug)
 467     {   const char ** avp;
 468         fprintf(stderr, "==> execvp(%s) argv[%d]:", argv[0], argc);
 469         for (avp = argv; *avp; avp++)
 470             fprintf(stderr, " '%s'", *avp);
 471         fprintf(stderr, "\n");
 472     }
 473 #endif
 474
 475     execvp(argv[0], (char *const *)argv);
 476
 477     return POPT_ERROR_ERRNO;
 478 }
 479 /*@=bounds =boundswrite @*/
 480
 481 /*@-boundswrite@*/
 482 /*@observer@*/ /*@null@*/ static const struct poptOption *
 483 findOption(const struct poptOption * opt, /*@null@*/ const char * longName,
 484                 char shortName,
 485                 /*@null@*/ /*@out@*/ poptCallbackType * callback,
 486                 /*@null@*/ /*@out@*/ const void ** callbackData,
 487                 int singleDash)
 488         /*@modifies *callback, *callbackData */
 489 {
 490     const struct poptOption * cb = NULL;
 491
 492     /* This happens when a single - is given */
 493     if (singleDash && !shortName && (longName && *longName == '\0'))
 494         shortName = '-';
 495
 496     for (; opt->longName || opt->shortName || opt->arg; opt++) {
 497
 498         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
 499             const struct poptOption * opt2;
 500             void * arg = opt->arg;
 501
 502 /*@-branchstate@*/
 503             /* XXX sick hack to preserve pretense of ABI. */
 504             if (arg == poptHelpOptions) arg = poptHelpOptionsI18N;
 505 /*@=branchstate@*/
 506             /* Recurse on included sub-tables. */
 507             if (arg == NULL) continue;  /* XXX program error */
 508             opt2 = findOption(arg, longName, shortName, callback,
 509                               callbackData, singleDash);
 510             if (opt2 == NULL) continue;
 511             /* Sub-table data will be inheirited if no data yet. */
 512             if (!(callback && *callback)) return opt2;
 513             if (!(callbackData && *callbackData == NULL)) return opt2;
 514             /*@-observertrans -dependenttrans @*/
 515             *callbackData = opt->descrip;
 516             /*@=observertrans =dependenttrans @*/
 517             return opt2;
 518         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) {
 519             cb = opt;
 520         } else if (longName && opt->longName &&
 521                    (!singleDash || (opt->argInfo & POPT_ARGFLAG_ONEDASH)) &&
 522                 /*@-nullpass@*/         /* LCL: opt->longName != NULL */
 523                    !strcmp(longName, opt->longName))
 524                 /*@=nullpass@*/
 525         {
 526             break;
 527         } else if (shortName && shortName == opt->shortName) {
 528             break;
 529         }
 530     }
 531
 532     if (!opt->longName && !opt->shortName)
 533         return NULL;
 534     /*@-modobserver -mods @*/
 535     if (callback) *callback = NULL;
 536     if (callbackData) *callbackData = NULL;
 537     if (cb) {
 538         if (callback)
 539         /*@-castfcnptr@*/
 540             *callback = (poptCallbackType)cb->arg;
 541         /*@=castfcnptr@*/
 542         if (!(cb->argInfo & POPT_CBFLAG_INC_DATA)) {
 543             if (callbackData)
 544                 /*@-observertrans@*/    /* FIX: typedef double indirection. */
 545                 *callbackData = cb->descrip;
 546                 /*@=observertrans@*/
 547         }
 548     }
 549     /*@=modobserver =mods @*/
 550
 551     return opt;
 552 }
 553 /*@=boundswrite@*/
 554
 555 static const char * findNextArg(/*@special@*/ poptContext con,
 556                 unsigned argx, int delete_arg)
 557         /*@uses con->optionStack, con->os,
 558                 con->os->next, con->os->argb, con->os->argc, con->os->argv @*/
 559         /*@modifies con @*/
 560 {
 561     struct optionStackEntry * os = con->os;
 562     const char * arg;
 563
 564     do {
 565         int i;
 566         arg = NULL;
 567         while (os->next == os->argc && os > con->optionStack) os--;
 568         if (os->next == os->argc && os == con->optionStack) break;
 569         if (os->argv != NULL)
 570         for (i = os->next; i < os->argc; i++) {
 571             /*@-sizeoftype@*/
 572             if (os->argb && PBM_ISSET(i, os->argb))
 573                 /*@innercontinue@*/ continue;
 574             if (*os->argv[i] == '-')
 575                 /*@innercontinue@*/ continue;
 576             if (--argx > 0)
 577                 /*@innercontinue@*/ continue;
 578             arg = os->argv[i];
 579             if (delete_arg) {
 580                 if (os->argb == NULL) os->argb = PBM_ALLOC(os->argc);
 581                 if (os->argb != NULL)   /* XXX can't happen */
 582                 PBM_SET(i, os->argb);
 583             }
 584             /*@innerbreak@*/ break;
 585             /*@=sizeoftype@*/
 586         }
 587         if (os > con->optionStack) os--;
 588     } while (arg == NULL);
 589     return arg;
 590 }
 591
 592 /*@-boundswrite@*/
 593 static /*@only@*/ /*@null@*/ const char *
 594 expandNextArg(/*@special@*/ poptContext con, const char * s)
 595         /*@uses con->optionStack, con->os,
 596                 con->os->next, con->os->argb, con->os->argc, con->os->argv @*/
 597         /*@modifies con @*/
 598 {
 599     const char * a = NULL;
 600     size_t alen, pos;
 601     char *t, *te;
 602     size_t tn = strlen(s) + 1;
 603     char c;
 604
 605     te = t = malloc(tn);;
 606     if (t == NULL) return NULL;         /* XXX can't happen */
 607     while ((c = *s++) != '\0') {
 608         switch (c) {
 609 #if 0   /* XXX can't do this */
 610         case '\\':      /* escape */
 611             c = *s++;
 612             /*@switchbreak@*/ break;
 613 #endif
 614         case '!':
 615             if (!(s[0] == '#' && s[1] == ':' && s[2] == '+'))
 616                 /*@switchbreak@*/ break;
 617             /* XXX Make sure that findNextArg deletes only next arg. */
 618             if (a == NULL) {
 619                 if ((a = findNextArg(con, 1, 1)) == NULL)
 620                     /*@switchbreak@*/ break;
 621             }
 622             s += 3;
 623
 624             alen = strlen(a);
 625             tn += alen;
 626             pos = te - t;
 627             t = realloc(t, tn);
 628             te = t + pos;
 629             memcpy(te, a, alen+1); te += alen;
 630             continue;
 631             /*@notreached@*/ /*@switchbreak@*/ break;
 632         default:
 633             /*@switchbreak@*/ break;
 634         }
 635         *te++ = c;
 636     }
 637     *te = '\0';
 638     t = realloc(t, strlen(t) + 1);      /* XXX memory leak, hard to plug */
 639     return t;
 640 }
 641 /*@=boundswrite@*/
 642
 643 static void poptStripArg(/*@special@*/ poptContext con, int which)
 644         /*@uses con->arg_strip, con->optionStack @*/
 645         /*@defines con->arg_strip @*/
 646         /*@modifies con @*/
 647 {
 648     /*@-sizeoftype@*/
 649     if (con->arg_strip == NULL)
 650         con->arg_strip = PBM_ALLOC(con->optionStack[0].argc);
 651     if (con->arg_strip != NULL)         /* XXX can't happen */
 652     PBM_SET(which, con->arg_strip);
 653     /*@=sizeoftype@*/
 654     /*@-compdef@*/ /* LCL: con->arg_strip udefined? */
 655     return;
 656     /*@=compdef@*/
 657 }
 658
 659 int poptSaveLong(long * arg, int argInfo, long aLong)
 660 {
 661     /* XXX Check alignment, may fail on funky platforms. */
 662     if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
 663         return POPT_ERROR_NULLARG;
 664
 665     if (argInfo & POPT_ARGFLAG_NOT)
 666         aLong = ~aLong;
 667     switch (argInfo & POPT_ARGFLAG_LOGICALOPS) {
 668     case 0:
 669         *arg = aLong;
 670         break;
 671     case POPT_ARGFLAG_OR:
 672         *arg |= aLong;
 673         break;
 674     case POPT_ARGFLAG_AND:
 675         *arg &= aLong;
 676         break;
 677     case POPT_ARGFLAG_XOR:
 678         *arg ^= aLong;
 679         break;
 680     default:
 681         return POPT_ERROR_BADOPERATION;
 682         /*@notreached@*/ break;
 683     }
 684     return 0;
 685 }
 686
 687 int poptSaveInt(/*@null@*/ int * arg, int argInfo, long aLong)
 688 {
 689     /* XXX Check alignment, may fail on funky platforms. */
 690     if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
 691         return POPT_ERROR_NULLARG;
 692
 693     if (argInfo & POPT_ARGFLAG_NOT)
 694         aLong = ~aLong;
 695     switch (argInfo & POPT_ARGFLAG_LOGICALOPS) {
 696     case 0:
 697         *arg = aLong;
 698         break;
 699     case POPT_ARGFLAG_OR:
 700         *arg |= aLong;
 701         break;
 702     case POPT_ARGFLAG_AND:
 703         *arg &= aLong;
 704         break;
 705     case POPT_ARGFLAG_XOR:
 706         *arg ^= aLong;
 707         break;
 708     default:
 709         return POPT_ERROR_BADOPERATION;
 710         /*@notreached@*/ break;
 711     }
 712     return 0;
 713 }
 714
 715 /*@-boundswrite@*/
 716 /* returns 'val' element, -1 on last item, POPT_ERROR_* on error */
 717 int poptGetNextOpt(poptContext con)
 718 {
 719     const struct poptOption * opt = NULL;
 720     int done = 0;
 721
 722     if (con == NULL)
 723         return -1;
 724     while (!done) {
 725         const char * origOptString = NULL;
 726         poptCallbackType cb = NULL;
 727         const void * cbData = NULL;
 728         const char * longArg = NULL;
 729         int canstrip = 0;
 730         int shorty = 0;
 731
 732         while (!con->os->nextCharArg && con->os->next == con->os->argc
 733                 && con->os > con->optionStack) {
 734             cleanOSE(con->os--);
 735         }
 736         if (!con->os->nextCharArg && con->os->next == con->os->argc) {
 737             /*@-internalglobs@*/
 738             invokeCallbacksPOST(con, con->options);
 739             /*@=internalglobs@*/
 740             if (con->doExec) return execCommand(con);
 741             return -1;
 742         }
 743
 744         /* Process next long option */
 745         if (!con->os->nextCharArg) {
 746             char * localOptString, * optString;
 747             int thisopt;
 748
 749             /*@-sizeoftype@*/
 750             if (con->os->argb && PBM_ISSET(con->os->next, con->os->argb)) {
 751                 con->os->next++;
 752                 continue;
 753             }
 754             /*@=sizeoftype@*/
 755             thisopt = con->os->next;
 756             if (con->os->argv != NULL)  /* XXX can't happen */
 757             origOptString = con->os->argv[con->os->next++];
 758
 759             if (origOptString == NULL)  /* XXX can't happen */
 760                 return POPT_ERROR_BADOPT;
 761
 762             if (con->restLeftover || *origOptString != '-') {
 763                 if (con->flags & POPT_CONTEXT_POSIXMEHARDER)
 764                     con->restLeftover = 1;
 765                 if (con->flags & POPT_CONTEXT_ARG_OPTS) {
 766                     con->os->nextArg = xstrdup(origOptString);
 767                     return 0;
 768                 }
 769                 if (con->leftovers != NULL)     /* XXX can't happen */
 770                     con->leftovers[con->numLeftovers++] = origOptString;
 771                 continue;
 772             }
 773
 774             /* Make a copy we can hack at */
 775             {   size_t bufsize = strlen(origOptString) + 1;
 776                 localOptString = optString = alloca(bufsize);
 777                 if (optString == NULL) /* XXX can't happen */
 778                     return POPT_ERROR_BADOPT;
 779                 strlcpy(optString, origOptString, bufsize);
 780             }
 781
 782             if (optString[0] == '\0')
 783                 return POPT_ERROR_BADOPT;
 784
 785             if (optString[1] == '-' && !optString[2]) {
 786                 con->restLeftover = 1;
 787                 continue;
 788             } else {
 789                 char *oe;
 790                 int singleDash;
 791
 792                 optString++;
 793                 if (*optString == '-')
 794                     singleDash = 0, optString++;
 795                 else
 796                     singleDash = 1;
 797
 798                 /* XXX aliases with arg substitution need "--alias=arg" */
 799                 if (handleAlias(con, optString, '\0', NULL))
 800                     continue;
 801
 802                 if (handleExec(con, optString, '\0'))
 803                     continue;
 804
 805                 /* Check for "--long=arg" option. */
 806                 for (oe = optString; *oe && *oe != '='; oe++)
 807                     {};
 808                 if (*oe == '=') {
 809                     *oe++ = '\0';
 810                     /* XXX longArg is mapped back to persistent storage. */
 811                     longArg = origOptString + (oe - localOptString);
 812                 } else
 813                     oe = NULL;
 814
 815                 opt = findOption(con->options, optString, '\0', &cb, &cbData,
 816                                  singleDash);
 817                 if (!opt && !singleDash)
 818                     return POPT_ERROR_BADOPT;
 819                 if (!opt && oe)
 820                     oe[-1] = '='; /* restore overwritten '=' */
 821             }
 822
 823             if (!opt) {
 824                 con->os->nextCharArg = origOptString + 1;
 825                 longArg = NULL;
 826             } else {
 827                 if (con->os == con->optionStack &&
 828                    opt->argInfo & POPT_ARGFLAG_STRIP)
 829                 {
 830                     canstrip = 1;
 831                     poptStripArg(con, thisopt);
 832                 }
 833                 shorty = 0;
 834             }
 835         }
 836
 837         /* Process next short option */
 838         /*@-branchstate@*/              /* FIX: W2DO? */
 839         if (con->os->nextCharArg) {
 840             origOptString = con->os->nextCharArg;
 841
 842             con->os->nextCharArg = NULL;
 843
 844             if (handleAlias(con, NULL, *origOptString, origOptString + 1))
 845                 continue;
 846
 847             if (handleExec(con, NULL, *origOptString)) {
 848                 /* Restore rest of short options for further processing */
 849                 origOptString++;
 850                 if (*origOptString != '\0')
 851                     con->os->nextCharArg = origOptString;
 852                 continue;
 853             }
 854
 855             opt = findOption(con->options, NULL, *origOptString, &cb,
 856                              &cbData, 0);
 857             if (!opt)
 858                 return POPT_ERROR_BADOPT;
 859             shorty = 1;
 860
 861             origOptString++;
 862             if (*origOptString != '\0')
 863                 con->os->nextCharArg = origOptString;
 864         }
 865         /*@=branchstate@*/
 866
 867         if (opt == NULL) return POPT_ERROR_BADOPT;      /* XXX can't happen */
 868         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE
 869          || (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL) {
 870             if (longArg || (con->os->nextCharArg && con->os->nextCharArg[0] == '='))
 871                 return POPT_ERROR_UNWANTEDARG;
 872             if (opt->arg) {
 873                 long val = (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL ? opt->val : 1;
 874                 if (poptSaveInt((int *)opt->arg, opt->argInfo, val))
 875                     return POPT_ERROR_BADOPERATION;
 876             }
 877         } else {
 878             con->os->nextArg = _free(con->os->nextArg);
 879             /*@-usedef@*/       /* FIX: W2DO? */
 880             if (longArg) {
 881             /*@=usedef@*/
 882                 longArg = expandNextArg(con, longArg);
 883                 con->os->nextArg = longArg;
 884             } else if (con->os->nextCharArg) {
 885                 longArg = expandNextArg(con, con->os->nextCharArg + (con->os->nextCharArg[0] == '='));
 886                 con->os->nextArg = longArg;
 887                 con->os->nextCharArg = NULL;
 888             } else {
 889                 while (con->os->next == con->os->argc &&
 890                        con->os > con->optionStack) {
 891                     cleanOSE(con->os--);
 892                 }
 893                 if (con->os->next == con->os->argc) {
 894                     if (!(opt->argInfo & POPT_ARGFLAG_OPTIONAL))
 895                         /*@-compdef@*/  /* FIX: con->os->argv not defined */
 896                         return POPT_ERROR_NOARG;
 897                         /*@=compdef@*/
 898                     con->os->nextArg = NULL;
 899                 } else {
 900
 901                     /*
 902                      * Make sure this isn't part of a short arg or the
 903                      * result of an alias expansion.
 904                      */
 905                     if (con->os == con->optionStack &&
 906                         (opt->argInfo & POPT_ARGFLAG_STRIP) &&
 907                         canstrip) {
 908                         poptStripArg(con, con->os->next);
 909                     }
 910
 911                     if (con->os->argv != NULL) {        /* XXX can't happen */
 912                         /* XXX watchout: subtle side-effects live here. */
 913                         longArg = con->os->argv[con->os->next++];
 914                         longArg = expandNextArg(con, longArg);
 915                         con->os->nextArg = longArg;
 916                     }
 917                 }
 918             }
 919             longArg = NULL;
 920
 921             if (opt->arg) {
 922                 switch (opt->argInfo & POPT_ARG_MASK) {
 923                 case POPT_ARG_STRING:
 924                     /* XXX memory leak, hard to plug */
 925                     *((const char **) opt->arg) = (con->os->nextArg)
 926                         ? xstrdup(con->os->nextArg) : NULL;
 927                     /*@switchbreak@*/ break;
 928
 929                 case POPT_ARG_INT:
 930                 case POPT_ARG_LONG:
 931                 {   long aLong = 0;
 932                     char *end;
 933
 934                     if (con->os->nextArg) {
 935                         aLong = strtol(con->os->nextArg, &end, 0);
 936                         if (!(end && *end == '\0'))
 937                             return POPT_ERROR_BADNUMBER;
 938                     }
 939
 940                     if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_LONG) {
 941                         if (aLong == LONG_MIN || aLong == LONG_MAX)
 942                             return POPT_ERROR_OVERFLOW;
 943                         if (poptSaveLong((long *)opt->arg, opt->argInfo, aLong))
 944                             return POPT_ERROR_BADOPERATION;
 945                     } else {
 946                         if (aLong > INT_MAX || aLong < INT_MIN)
 947                             return POPT_ERROR_OVERFLOW;
 948                         if (poptSaveInt((int *)opt->arg, opt->argInfo, aLong))
 949                             return POPT_ERROR_BADOPERATION;
 950                     }
 951                 }   /*@switchbreak@*/ break;
 952
 953                 case POPT_ARG_FLOAT:
 954                 case POPT_ARG_DOUBLE:
 955                 {   double aDouble = 0.0;
 956                     char *end;
 957
 958                     if (con->os->nextArg) {
 959                         /*@-mods@*/
 960                         int saveerrno = errno;
 961                         errno = 0;
 962                         aDouble = strtod(con->os->nextArg, &end);
 963                         if (errno == ERANGE)
 964                             return POPT_ERROR_OVERFLOW;
 965                         errno = saveerrno;
 966                         /*@=mods@*/
 967                         if (*end != '\0')
 968                             return POPT_ERROR_BADNUMBER;
 969                     }
 970
 971                     if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_DOUBLE) {
 972                         *((double *) opt->arg) = aDouble;
 973                     } else {
 974 #define MY_ABS(a) ((((a) - 0.0) < DBL_EPSILON) ? -(a) : (a))
 975                         if ((MY_ABS(aDouble) - FLT_MAX) > DBL_EPSILON)
 976                             return POPT_ERROR_OVERFLOW;
 977                         if ((FLT_MIN - MY_ABS(aDouble)) > DBL_EPSILON)
 978                             return POPT_ERROR_OVERFLOW;
 979                         *((float *) opt->arg) = aDouble;
 980                     }
 981                 }   /*@switchbreak@*/ break;
 982                 default:
 983                     fprintf(stdout,
 984                         POPT_("option type (%d) not implemented in popt\n"),
 985                         (opt->argInfo & POPT_ARG_MASK));
 986                     exit(EXIT_FAILURE);
 987                     /*@notreached@*/ /*@switchbreak@*/ break;
 988                 }
 989             }
 990         }
 991
 992         if (cb) {
 993             /*@-internalglobs@*/
 994             invokeCallbacksOPTION(con, con->options, opt, cbData, shorty);
 995             /*@=internalglobs@*/
 996         } else if (opt->val && ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL))
 997             done = 1;
 998
 999         if ((con->finalArgvCount + 2) >= (con->finalArgvAlloced)) {
1000             con->finalArgvAlloced += 10;
1001             con->finalArgv = realloc(con->finalArgv,
1002                             sizeof(*con->finalArgv) * con->finalArgvAlloced);
1003         }
1004
1005         if (con->finalArgv != NULL)
1006         {   ssize_t bufsize = (opt->longName ? strlen(opt->longName) : 0) + 3;
1007             char *s = malloc(bufsize);
1008             if (s != NULL) {    /* XXX can't happen */
1009                 if (opt->longName)
1010                     snprintf(s, bufsize, "%s%s",
1011                         ((opt->argInfo & POPT_ARGFLAG_ONEDASH) ? "-" : "--"),
1012                         opt->longName);
1013                 else
1014                     snprintf(s, bufsize, "-%c", opt->shortName);
1015                 con->finalArgv[con->finalArgvCount++] = s;
1016             } else
1017                 con->finalArgv[con->finalArgvCount++] = NULL;
1018         }
1019
1020         if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE)
1021             /*@-ifempty@*/ ; /*@=ifempty@*/
1022         else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL)
1023             /*@-ifempty@*/ ; /*@=ifempty@*/
1024         else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
1025             if (con->finalArgv != NULL && con->os->nextArg)
1026                 con->finalArgv[con->finalArgvCount++] =
1027                         /*@-nullpass@*/ /* LCL: con->os->nextArg != NULL */
1028                         xstrdup(con->os->nextArg);
1029                         /*@=nullpass@*/
1030         }
1031     }
1032
1033     return (opt ? opt->val : -1);       /* XXX can't happen */
1034 }
1035 /*@=boundswrite@*/
1036
1037 const char * poptGetOptArg(poptContext con)
1038 {
1039     const char * ret = NULL;
1040     /*@-branchstate@*/
1041     if (con) {
1042         ret = con->os->nextArg;
1043         con->os->nextArg = NULL;
1044     }
1045     /*@=branchstate@*/
1046     return ret;
1047 }
1048
1049 const char * poptGetArg(poptContext con)
1050 {
1051     const char * ret = NULL;
1052     if (con && con->leftovers != NULL && con->nextLeftover < con->numLeftovers)
1053         ret = con->leftovers[con->nextLeftover++];
1054     return ret;
1055 }
1056
1057 const char * poptPeekArg(poptContext con)
1058 {
1059     const char * ret = NULL;
1060     if (con && con->leftovers != NULL && con->nextLeftover < con->numLeftovers)
1061         ret = con->leftovers[con->nextLeftover];
1062     return ret;
1063 }
1064
1065 /*@-boundswrite@*/
1066 const char ** poptGetArgs(poptContext con)
1067 {
1068     if (con == NULL ||
1069         con->leftovers == NULL || con->numLeftovers == con->nextLeftover)
1070         return NULL;
1071
1072     /* some apps like [like RPM ;-) ] need this NULL terminated */
1073     con->leftovers[con->numLeftovers] = NULL;
1074
1075     /*@-nullret -nullstate @*/  /* FIX: typedef double indirection. */
1076     return (con->leftovers + con->nextLeftover);
1077     /*@=nullret =nullstate @*/
1078 }
1079 /*@=boundswrite@*/
1080
1081 poptContext poptFreeContext(poptContext con)
1082 {
1083     poptItem item;
1084     int i;
1085
1086     if (con == NULL) return con;
1087     poptResetContext(con);
1088     con->os->argb = _free(con->os->argb);
1089
1090     if (con->aliases != NULL)
1091     for (i = 0; i < con->numAliases; i++) {
1092         item = con->aliases + i;
1093         /*@-modobserver -observertrans -dependenttrans@*/
1094         item->option.longName = _free(item->option.longName);
1095         item->option.descrip = _free(item->option.descrip);
1096         item->option.argDescrip = _free(item->option.argDescrip);
1097         /*@=modobserver =observertrans =dependenttrans@*/
1098         item->argv = _free(item->argv);
1099     }
1100     con->aliases = _free(con->aliases);
1101
1102     if (con->execs != NULL)
1103     for (i = 0; i < con->numExecs; i++) {
1104         item = con->execs + i;
1105         /*@-modobserver -observertrans -dependenttrans@*/
1106         item->option.longName = _free(item->option.longName);
1107         item->option.descrip = _free(item->option.descrip);
1108         item->option.argDescrip = _free(item->option.argDescrip);
1109         /*@=modobserver =observertrans =dependenttrans@*/
1110         item->argv = _free(item->argv);
1111     }
1112     con->execs = _free(con->execs);
1113
1114     con->leftovers = _free(con->leftovers);
1115     con->finalArgv = _free(con->finalArgv);
1116     con->appName = _free(con->appName);
1117     con->otherHelp = _free(con->otherHelp);
1118     con->execPath = _free(con->execPath);
1119     con->arg_strip = PBM_FREE(con->arg_strip);
1120
1121     con = _free(con);
1122     return con;
1123 }
1124
1125 int poptAddAlias(poptContext con, struct poptAlias alias,
1126                 /*@unused@*/ UNUSED(int flags))
1127 {
1128     poptItem item = (poptItem) alloca(sizeof(*item));
1129     memset(item, 0, sizeof(*item));
1130     item->option.longName = alias.longName;
1131     item->option.shortName = alias.shortName;
1132     item->option.argInfo = POPT_ARGFLAG_DOC_HIDDEN;
1133     item->option.arg = 0;
1134     item->option.val = 0;
1135     item->option.descrip = NULL;
1136     item->option.argDescrip = NULL;
1137     item->argc = alias.argc;
1138     item->argv = alias.argv;
1139     return poptAddItem(con, item, 0);
1140 }
1141
1142 /*@-boundswrite@*/
1143 /*@-mustmod@*/ /* LCL: con not modified? */
1144 int poptAddItem(poptContext con, poptItem newItem, int flags)
1145 {
1146     poptItem * items, item;
1147     int * nitems;
1148
1149     switch (flags) {
1150     case 1:
1151         items = &con->execs;
1152         nitems = &con->numExecs;
1153         break;
1154     case 0:
1155         items = &con->aliases;
1156         nitems = &con->numAliases;
1157         break;
1158     default:
1159         return 1;
1160         /*@notreached@*/ break;
1161     }
1162
1163     *items = realloc((*items), ((*nitems) + 1) * sizeof(**items));
1164     if ((*items) == NULL)
1165         return 1;
1166
1167     item = (*items) + (*nitems);
1168
1169     item->option.longName =
1170         (newItem->option.longName ? xstrdup(newItem->option.longName) : NULL);
1171     item->option.shortName = newItem->option.shortName;
1172     item->option.argInfo = newItem->option.argInfo;
1173     item->option.arg = newItem->option.arg;
1174     item->option.val = newItem->option.val;
1175     item->option.descrip =
1176         (newItem->option.descrip ? xstrdup(newItem->option.descrip) : NULL);
1177     item->option.argDescrip =
1178        (newItem->option.argDescrip ? xstrdup(newItem->option.argDescrip) : NULL);
1179     item->argc = newItem->argc;
1180     item->argv = newItem->argv;
1181
1182     (*nitems)++;
1183
1184     return 0;
1185 }
1186 /*@=mustmod@*/
1187 /*@=boundswrite@*/
1188
1189 const char * poptBadOption(poptContext con, int flags)
1190 {
1191     struct optionStackEntry * os = NULL;
1192
1193     if (con != NULL)
1194         os = (flags & POPT_BADOPTION_NOALIAS) ? con->optionStack : con->os;
1195
1196     /*@-nullderef@*/    /* LCL: os->argv != NULL */
1197     return (os && os->argv ? os->argv[os->next - 1] : NULL);
1198     /*@=nullderef@*/
1199 }
1200
1201 const char * poptStrerror(const int error)
1202 {
1203     switch (error) {
1204       case POPT_ERROR_NOARG:
1205         return POPT_("missing argument");
1206       case POPT_ERROR_UNWANTEDARG:
1207         return POPT_("option does not take an argument");
1208       case POPT_ERROR_BADOPT:
1209         return POPT_("unknown option");
1210       case POPT_ERROR_BADOPERATION:
1211         return POPT_("mutually exclusive logical operations requested");
1212       case POPT_ERROR_NULLARG:
1213         return POPT_("opt->arg should not be NULL");
1214       case POPT_ERROR_OPTSTOODEEP:
1215         return POPT_("aliases nested too deeply");
1216       case POPT_ERROR_BADQUOTE:
1217         return POPT_("error in parameter quoting");
1218       case POPT_ERROR_BADNUMBER:
1219         return POPT_("invalid numeric value");
1220       case POPT_ERROR_OVERFLOW:
1221         return POPT_("number too large or too small");
1222       case POPT_ERROR_MALLOC:
1223         return POPT_("memory allocation failed");
1224       case POPT_ERROR_ERRNO:
1225         return strerror(errno);
1226       default:
1227         return POPT_("unknown error");
1228     }
1229 }
1230
1231 int poptStuffArgs(poptContext con, const char ** argv)
1232 {
1233     int argc;
1234     int rc;
1235
1236     if ((con->os - con->optionStack) == POPT_OPTION_DEPTH)
1237         return POPT_ERROR_OPTSTOODEEP;
1238
1239     for (argc = 0; argv[argc]; argc++)
1240         {};
1241
1242     con->os++;
1243     con->os->next = 0;
1244     con->os->nextArg = NULL;
1245     con->os->nextCharArg = NULL;
1246     con->os->currAlias = NULL;
1247     rc = poptDupArgv(argc, argv, &con->os->argc, &con->os->argv);
1248     con->os->argb = NULL;
1249     con->os->stuffed = 1;
1250
1251     return rc;
1252 }
1253
1254 const char * poptGetInvocationName(poptContext con)
1255 {
1256     return (con->os->argv ? con->os->argv[0] : "");
1257 }
1258
1259 /*@-boundswrite@*/
1260 int poptStrippedArgv(poptContext con, int argc, char ** argv)
1261 {
1262     int numargs = argc;
1263     int j = 1;
1264     int i;
1265
1266     /*@-sizeoftype@*/
1267     if (con->arg_strip)
1268     for (i = 1; i < argc; i++) {
1269         if (PBM_ISSET(i, con->arg_strip))
1270             numargs--;
1271     }
1272
1273     for (i = 1; i < argc; i++) {
1274         if (con->arg_strip && PBM_ISSET(i, con->arg_strip))
1275             continue;
1276         argv[j] = (j < numargs) ? argv[i] : NULL;
1277         j++;
1278     }
1279     /*@=sizeoftype@*/
1280
1281     return numargs;
1282 }
1283 /*@=boundswrite@*/