release/src/router/samba3/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 = _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, 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, 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, opt->arg, myOpt, myData, shorty);
 123         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
 124                   !(opt->argInfo & POPT_CBFLAG_SKIPOPTION)) {
 125             /* Save callback info. */
 126             cbopt = opt;
 127         } else if (cbopt != NULL &&
 128                    ((myOpt->shortName && opt->shortName && shorty &&
 129                         myOpt->shortName == opt->shortName) ||
 130                     (myOpt->longName && opt->longName &&
 131                 /*@-nullpass@*/         /* LCL: opt->longName != NULL */
 132                         !strcmp(myOpt->longName, opt->longName)))
 133                 /*@=nullpass@*/
 134                    )
 135         {   /*@-castfcnptr@*/
 136             poptCallbackType cb = (poptCallbackType)cbopt->arg;
 137             /*@=castfcnptr@*/
 138             const void * cbData = (cbopt->descrip ? cbopt->descrip : myData);
 139             /* Perform callback. */
 140             if (cb != NULL) {   /* XXX program error */
 141                 /*@-moduncon -noeffectuncon @*/
 142                 cb(con, POPT_CALLBACK_REASON_OPTION, myOpt,
 143                         con->os->nextArg, cbData);
 144                 /*@=moduncon =noeffectuncon @*/
 145             }
 146             /* Terminate (unless explcitly continuing). */
 147             if (!(cbopt->argInfo & POPT_CBFLAG_CONTINUE))
 148                 return;
 149         }
 150     }
 151 }
 152
 153 poptContext poptGetContext(const char * name, int argc, const char ** argv,
 154                            const struct poptOption * options, int flags)
 155 {
 156     poptContext con = malloc(sizeof(*con));
 157
 158     if (con == NULL) return NULL;       /* XXX can't happen */
 159     memset(con, 0, sizeof(*con));
 160
 161     con->os = con->optionStack;
 162     con->os->argc = argc;
 163     /*@-dependenttrans -assignexpose@*/ /* FIX: W2DO? */
 164     con->os->argv = argv;
 165     /*@=dependenttrans =assignexpose@*/
 166     con->os->argb = NULL;
 167
 168     if (!(flags & POPT_CONTEXT_KEEP_FIRST))
 169         con->os->next = 1;                      /* skip argv[0] */
 170
 171     con->leftovers = calloc( (argc + 1), sizeof(*con->leftovers) );
 172     /*@-dependenttrans -assignexpose@*/ /* FIX: W2DO? */
 173     con->options = options;
 174     /*@=dependenttrans =assignexpose@*/
 175     con->aliases = NULL;
 176     con->numAliases = 0;
 177     con->flags = flags;
 178     con->execs = NULL;
 179     con->numExecs = 0;
 180     con->finalArgvAlloced = argc * 2;
 181     con->finalArgv = calloc( con->finalArgvAlloced, sizeof(*con->finalArgv) );
 182     con->execAbsolute = 1;
 183     con->arg_strip = NULL;
 184
 185     if (getenv("POSIXLY_CORRECT") || getenv("POSIX_ME_HARDER"))
 186         con->flags |= POPT_CONTEXT_POSIXMEHARDER;
 187
 188     if (name) {
 189         char * t = malloc(strlen(name) + 1);
 190         if (t) con->appName = strcpy(t, name);
 191     }
 192
 193     /*@-internalglobs@*/
 194     invokeCallbacksPRE(con, con->options);
 195     /*@=internalglobs@*/
 196
 197     return con;
 198 }
 199
 200 static void cleanOSE(/*@special@*/ struct optionStackEntry *os)
 201         /*@uses os @*/
 202         /*@releases os->nextArg, os->argv, os->argb @*/
 203         /*@modifies os @*/
 204 {
 205     os->nextArg = _free(os->nextArg);
 206     os->argv = _free(os->argv);
 207     os->argb = PBM_FREE(os->argb);
 208 }
 209
 210 /*@-boundswrite@*/
 211 void poptResetContext(poptContext con)
 212 {
 213     int i;
 214
 215     if (con == NULL) return;
 216     while (con->os > con->optionStack) {
 217         cleanOSE(con->os--);
 218     }
 219     con->os->argb = PBM_FREE(con->os->argb);
 220     con->os->currAlias = NULL;
 221     con->os->nextCharArg = NULL;
 222     con->os->nextArg = NULL;
 223     con->os->next = 1;                  /* skip argv[0] */
 224
 225     con->numLeftovers = 0;
 226     con->nextLeftover = 0;
 227     con->restLeftover = 0;
 228     con->doExec = NULL;
 229
 230     if (con->finalArgv != NULL)
 231     for (i = 0; i < con->finalArgvCount; i++) {
 232         /*@-unqualifiedtrans@*/         /* FIX: typedef double indirection. */
 233         con->finalArgv[i] = _free(con->finalArgv[i]);
 234         /*@=unqualifiedtrans@*/
 235     }
 236
 237     con->finalArgvCount = 0;
 238     con->arg_strip = PBM_FREE(con->arg_strip);
 239     /*@-nullstate@*/    /* FIX: con->finalArgv != NULL */
 240     return;
 241     /*@=nullstate@*/
 242 }
 243 /*@=boundswrite@*/
 244
 245 /* Only one of longName, shortName should be set, not both. */
 246 /*@-boundswrite@*/
 247 static int handleExec(/*@special@*/ poptContext con,
 248                 /*@null@*/ const char * longName, char shortName)
 249         /*@uses con->execs, con->numExecs, con->flags, con->doExec,
 250                 con->finalArgv, con->finalArgvAlloced, con->finalArgvCount @*/
 251         /*@modifies con @*/
 252 {
 253     poptItem item;
 254     int i;
 255
 256     if (con->execs == NULL || con->numExecs <= 0) /* XXX can't happen */
 257         return 0;
 258
 259     for (i = con->numExecs - 1; i >= 0; i--) {
 260         item = con->execs + i;
 261         if (longName && !(item->option.longName &&
 262                         !strcmp(longName, item->option.longName)))
 263             continue;
 264         else if (shortName != item->option.shortName)
 265             continue;
 266         break;
 267     }
 268     if (i < 0) return 0;
 269
 270
 271     if (con->flags & POPT_CONTEXT_NO_EXEC)
 272         return 1;
 273
 274     if (con->doExec == NULL) {
 275         con->doExec = con->execs + i;
 276         return 1;
 277     }
 278
 279     /* We already have an exec to do; remember this option for next
 280        time 'round */
 281     if ((con->finalArgvCount + 1) >= (con->finalArgvAlloced)) {
 282         con->finalArgvAlloced += 10;
 283         con->finalArgv = realloc(con->finalArgv,
 284                         sizeof(*con->finalArgv) * con->finalArgvAlloced);
 285     }
 286
 287     i = con->finalArgvCount++;
 288     if (con->finalArgv != NULL) /* XXX can't happen */
 289     {   char *s  = malloc((longName ? strlen(longName) : 0) + 3);
 290         if (s != NULL) {        /* XXX can't happen */
 291             if (longName)
 292                 sprintf(s, "--%s", longName);
 293             else
 294                 sprintf(s, "-%c", shortName);
 295             con->finalArgv[i] = s;
 296         } else
 297             con->finalArgv[i] = NULL;
 298     }
 299
 300     /*@-nullstate@*/    /* FIX: con->finalArgv[] == NULL */
 301     return 1;
 302     /*@=nullstate@*/
 303 }
 304 /*@=boundswrite@*/
 305
 306 /* Only one of longName, shortName may be set at a time */
 307 static int handleAlias(/*@special@*/ poptContext con,
 308                 /*@null@*/ const char * longName, char shortName,
 309                 /*@exposed@*/ /*@null@*/ const char * nextCharArg)
 310         /*@uses con->aliases, con->numAliases, con->optionStack, con->os,
 311                 con->os->currAlias, con->os->currAlias->option.longName @*/
 312         /*@modifies con @*/
 313 {
 314     poptItem item = con->os->currAlias;
 315     int rc;
 316     int i;
 317
 318     if (item) {
 319         if (longName && (item->option.longName &&
 320                 !strcmp(longName, item->option.longName)))
 321             return 0;
 322         if (shortName && shortName == item->option.shortName)
 323             return 0;
 324     }
 325
 326     if (con->aliases == NULL || con->numAliases <= 0) /* XXX can't happen */
 327         return 0;
 328
 329     for (i = con->numAliases - 1; i >= 0; i--) {
 330         item = con->aliases + i;
 331         if (longName && !(item->option.longName &&
 332                         !strcmp(longName, item->option.longName)))
 333             continue;
 334         else if (shortName != item->option.shortName)
 335             continue;
 336         break;
 337     }
 338     if (i < 0) return 0;
 339
 340     if ((con->os - con->optionStack + 1) == POPT_OPTION_DEPTH)
 341         return POPT_ERROR_OPTSTOODEEP;
 342
 343 /*@-boundsread@*/
 344     if (nextCharArg && *nextCharArg)
 345         con->os->nextCharArg = nextCharArg;
 346 /*@=boundsread@*/
 347
 348     con->os++;
 349     con->os->next = 0;
 350     con->os->stuffed = 0;
 351     con->os->nextArg = NULL;
 352     con->os->nextCharArg = NULL;
 353     con->os->currAlias = con->aliases + i;
 354     rc = poptDupArgv(con->os->currAlias->argc, con->os->currAlias->argv,
 355                 &con->os->argc, &con->os->argv);
 356     con->os->argb = NULL;
 357
 358     return (rc ? rc : 1);
 359 }
 360
 361 /*@-bounds -boundswrite @*/
 362 static int execCommand(poptContext con)
 363         /*@globals internalState @*/
 364         /*@modifies internalState @*/
 365 {
 366     poptItem item = con->doExec;
 367     const char ** argv;
 368     int argc = 0;
 369     int rc;
 370
 371     if (item == NULL) /*XXX can't happen*/
 372         return POPT_ERROR_NOARG;
 373
 374     if (item->argv == NULL || item->argc < 1 ||
 375         (!con->execAbsolute && strchr(item->argv[0], '/')))
 376             return POPT_ERROR_NOARG;
 377
 378     argv = malloc(sizeof(*argv) *
 379                         (6 + item->argc + con->numLeftovers + con->finalArgvCount));
 380     if (argv == NULL) return POPT_ERROR_MALLOC; /* XXX can't happen */
 381
 382     if (!strchr(item->argv[0], '/') && con->execPath) {
 383         char *s = alloca(strlen(con->execPath) + strlen(item->argv[0]) + sizeof("/"));
 384         sprintf(s, "%s/%s", con->execPath, item->argv[0]);
 385         argv[argc] = s;
 386     } else {
 387         argv[argc] = findProgramPath(item->argv[0]);
 388     }
 389     if (argv[argc++] == NULL) return POPT_ERROR_NOARG;
 390
 391     if (item->argc > 1) {
 392         memcpy(argv + argc, item->argv + 1, sizeof(*argv) * (item->argc - 1));
 393         argc += (item->argc - 1);
 394     }
 395
 396     if (con->finalArgv != NULL && con->finalArgvCount > 0) {
 397         memcpy(argv + argc, con->finalArgv,
 398                 sizeof(*argv) * con->finalArgvCount);
 399         argc += con->finalArgvCount;
 400     }
 401
 402     if (con->leftovers != NULL && con->numLeftovers > 0) {
 403 #if 0
 404         argv[argc++] = "--";
 405 #endif
 406         memcpy(argv + argc, con->leftovers, sizeof(*argv) * con->numLeftovers);
 407         argc += con->numLeftovers;
 408     }
 409
 410     argv[argc] = NULL;
 411
 412 #ifdef __hpux
 413     rc = setresuid(getuid(), getuid(),-1);
 414     if (rc) return POPT_ERROR_ERRNO;
 415 #else
 416 /*
 417  * XXX " ... on BSD systems setuid() should be preferred over setreuid()"
 418  * XXX  sez' Timur Bakeyev <mc@bat.ru>
 419  * XXX  from Norbert Warmuth <nwarmuth@privat.circular.de>
 420  */
 421 #if defined(HAVE_SETUID)
 422     rc = setuid(getuid());
 423     if (rc) return POPT_ERROR_ERRNO;
 424 #elif defined (HAVE_SETREUID)
 425     rc = setreuid(getuid(), getuid()); /*hlauer: not portable to hpux9.01 */
 426     if (rc) return POPT_ERROR_ERRNO;
 427 #else
 428     ; /* Can't drop privileges */
 429 #endif
 430 #endif
 431
 432     if (argv[0] == NULL)
 433         return POPT_ERROR_NOARG;
 434
 435 #ifdef  MYDEBUG
 436 if (_popt_debug)
 437     {   const char ** avp;
 438         fprintf(stderr, "==> execvp(%s) argv[%d]:", argv[0], argc);
 439         for (avp = argv; *avp; avp++)
 440             fprintf(stderr, " '%s'", *avp);
 441         fprintf(stderr, "\n");
 442     }
 443 #endif
 444
 445     rc = execvp(argv[0], (char *const *)argv);
 446
 447     return POPT_ERROR_ERRNO;
 448 }
 449 /*@=bounds =boundswrite @*/
 450
 451 /*@-boundswrite@*/
 452 /*@observer@*/ /*@null@*/ static const struct poptOption *
 453 findOption(const struct poptOption * opt, /*@null@*/ const char * longName,
 454                 char shortName,
 455                 /*@null@*/ /*@out@*/ poptCallbackType * callback,
 456                 /*@null@*/ /*@out@*/ const void ** callbackData,
 457                 int singleDash)
 458         /*@modifies *callback, *callbackData */
 459 {
 460     const struct poptOption * cb = NULL;
 461
 462     /* This happens when a single - is given */
 463     if (singleDash && !shortName && (longName && *longName == '\0'))
 464         shortName = '-';
 465
 466     for (; opt->longName || opt->shortName || opt->arg; opt++) {
 467
 468         if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
 469             const struct poptOption * opt2;
 470
 471             /* Recurse on included sub-tables. */
 472             if (opt->arg == NULL) continue;     /* XXX program error */
 473             opt2 = findOption(opt->arg, longName, shortName, callback,
 474                               callbackData, singleDash);
 475             if (opt2 == NULL) continue;
 476             /* Sub-table data will be inheirited if no data yet. */
 477             if (!(callback && *callback)) return opt2;
 478             if (!(callbackData && *callbackData == NULL)) return opt2;
 479             /*@-observertrans -dependenttrans @*/
 480             *callbackData = opt->descrip;
 481             /*@=observertrans =dependenttrans @*/
 482             return opt2;
 483         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) {
 484             cb = opt;
 485         } else if (longName && opt->longName &&
 486                    (!singleDash || (opt->argInfo & POPT_ARGFLAG_ONEDASH)) &&
 487                 /*@-nullpass@*/         /* LCL: opt->longName != NULL */
 488                    !strcmp(longName, opt->longName))
 489                 /*@=nullpass@*/
 490         {
 491             break;
 492         } else if (shortName && shortName == opt->shortName) {
 493             break;
 494         }
 495     }
 496
 497     if (!opt->longName && !opt->shortName)
 498         return NULL;
 499     /*@-modobserver -mods @*/
 500     if (callback) *callback = NULL;
 501     if (callbackData) *callbackData = NULL;
 502     if (cb) {
 503         if (callback)
 504         /*@-castfcnptr@*/
 505             *callback = (poptCallbackType)cb->arg;
 506         /*@=castfcnptr@*/
 507         if (!(cb->argInfo & POPT_CBFLAG_INC_DATA)) {
 508             if (callbackData)
 509                 /*@-observertrans@*/    /* FIX: typedef double indirection. */
 510                 *callbackData = cb->descrip;
 511                 /*@=observertrans@*/
 512         }
 513     }
 514     /*@=modobserver =mods @*/
 515
 516     return opt;
 517 }
 518 /*@=boundswrite@*/
 519
 520 static const char * findNextArg(/*@special@*/ poptContext con,
 521                 unsigned argx, int delete_arg)
 522         /*@uses con->optionStack, con->os,
 523                 con->os->next, con->os->argb, con->os->argc, con->os->argv @*/
 524         /*@modifies con @*/
 525 {
 526     struct optionStackEntry * os = con->os;
 527     const char * arg;
 528
 529     do {
 530         int i;
 531         arg = NULL;
 532         while (os->next == os->argc && os > con->optionStack) os--;
 533         if (os->next == os->argc && os == con->optionStack) break;
 534         if (os->argv != NULL)
 535         for (i = os->next; i < os->argc; i++) {
 536             /*@-sizeoftype@*/
 537             if (os->argb && PBM_ISSET(i, os->argb))
 538                 /*@innercontinue@*/ continue;
 539             if (*os->argv[i] == '-')
 540                 /*@innercontinue@*/ continue;
 541             if (--argx > 0)
 542                 /*@innercontinue@*/ continue;
 543             arg = os->argv[i];
 544             if (delete_arg) {
 545                 if (os->argb == NULL) os->argb = PBM_ALLOC(os->argc);
 546                 if (os->argb != NULL)   /* XXX can't happen */
 547                 PBM_SET(i, os->argb);
 548             }
 549             /*@innerbreak@*/ break;
 550             /*@=sizeoftype@*/
 551         }
 552         if (os > con->optionStack) os--;
 553     } while (arg == NULL);
 554     return arg;
 555 }
 556
 557 /*@-boundswrite@*/
 558 static /*@only@*/ /*@null@*/ const char *
 559 expandNextArg(/*@special@*/ poptContext con, const char * s)
 560         /*@uses con->optionStack, con->os,
 561                 con->os->next, con->os->argb, con->os->argc, con->os->argv @*/
 562         /*@modifies con @*/
 563 {
 564     const char * a = NULL;
 565     size_t alen;
 566     char *t, *te;
 567     size_t tn = strlen(s) + 1;
 568     char c;
 569
 570     te = t = malloc(tn);;
 571     if (t == NULL) return NULL;         /* XXX can't happen */
 572     while ((c = *s++) != '\0') {
 573         switch (c) {
 574 #if 0   /* XXX can't do this */
 575         case '\\':      /* escape */
 576             c = *s++;
 577             /*@switchbreak@*/ break;
 578 #endif
 579         case '!':
 580             if (!(s[0] == '#' && s[1] == ':' && s[2] == '+'))
 581                 /*@switchbreak@*/ break;
 582             /* XXX Make sure that findNextArg deletes only next arg. */
 583             if (a == NULL) {
 584                 if ((a = findNextArg(con, 1, 1)) == NULL)
 585                     /*@switchbreak@*/ break;
 586             }
 587             s += 3;
 588
 589             alen = strlen(a);
 590             tn += alen;
 591             *te = '\0';
 592             t = realloc(t, tn);
 593             te = t + strlen(t);
 594             strncpy(te, a, alen); te += alen;
 595             continue;
 596             /*@notreached@*/ /*@switchbreak@*/ break;
 597         default:
 598             /*@switchbreak@*/ break;
 599         }
 600         *te++ = c;
 601     }
 602     *te = '\0';
 603     t = realloc(t, strlen(t) + 1);      /* XXX memory leak, hard to plug */
 604     return t;
 605 }
 606 /*@=boundswrite@*/
 607
 608 static void poptStripArg(/*@special@*/ poptContext con, int which)
 609         /*@uses con->arg_strip, con->optionStack @*/
 610         /*@defines con->arg_strip @*/
 611         /*@modifies con @*/
 612 {
 613     /*@-sizeoftype@*/
 614     if (con->arg_strip == NULL)
 615         con->arg_strip = PBM_ALLOC(con->optionStack[0].argc);
 616     if (con->arg_strip != NULL)         /* XXX can't happen */
 617     PBM_SET(which, con->arg_strip);
 618     /*@=sizeoftype@*/
 619     /*@-compdef@*/ /* LCL: con->arg_strip udefined? */
 620     return;
 621     /*@=compdef@*/
 622 }
 623
 624 int poptSaveLong(long * arg, int argInfo, long aLong)
 625 {
 626     /* XXX Check alignment, may fail on funky platforms. */
 627     if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
 628         return POPT_ERROR_NULLARG;
 629
 630     if (argInfo & POPT_ARGFLAG_NOT)
 631         aLong = ~aLong;
 632     switch (argInfo & POPT_ARGFLAG_LOGICALOPS) {
 633     case 0:
 634         *arg = aLong;
 635         break;
 636     case POPT_ARGFLAG_OR:
 637         *arg |= aLong;
 638         break;
 639     case POPT_ARGFLAG_AND:
 640         *arg &= aLong;
 641         break;
 642     case POPT_ARGFLAG_XOR:
 643         *arg ^= aLong;
 644         break;
 645     default:
 646         return POPT_ERROR_BADOPERATION;
 647         /*@notreached@*/ break;
 648     }
 649     return 0;
 650 }
 651
 652 int poptSaveInt(/*@null@*/ int * arg, int argInfo, long aLong)
 653 {
 654     /* XXX Check alignment, may fail on funky platforms. */
 655     if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
 656         return POPT_ERROR_NULLARG;
 657
 658     if (argInfo & POPT_ARGFLAG_NOT)
 659         aLong = ~aLong;
 660     switch (argInfo & POPT_ARGFLAG_LOGICALOPS) {
 661     case 0:
 662         *arg = aLong;
 663         break;
 664     case POPT_ARGFLAG_OR:
 665         *arg |= aLong;
 666         break;
 667     case POPT_ARGFLAG_AND:
 668         *arg &= aLong;
 669         break;
 670     case POPT_ARGFLAG_XOR:
 671         *arg ^= aLong;
 672         break;
 673     default:
 674         return POPT_ERROR_BADOPERATION;
 675         /*@notreached@*/ break;
 676     }
 677     return 0;
 678 }
 679
 680 /*@-boundswrite@*/
 681 /* returns 'val' element, -1 on last item, POPT_ERROR_* on error */
 682 int poptGetNextOpt(poptContext con)
 683 {
 684     const struct poptOption * opt = NULL;
 685     int done = 0;
 686
 687     if (con == NULL)
 688         return -1;
 689     while (!done) {
 690         const char * origOptString = NULL;
 691         poptCallbackType cb = NULL;
 692         const void * cbData = NULL;
 693         const char * longArg = NULL;
 694         int canstrip = 0;
 695         int shorty = 0;
 696
 697         while (!con->os->nextCharArg && con->os->next == con->os->argc
 698                 && con->os > con->optionStack) {
 699             cleanOSE(con->os--);
 700         }
 701         if (!con->os->nextCharArg && con->os->next == con->os->argc) {
 702             /*@-internalglobs@*/
 703             invokeCallbacksPOST(con, con->options);
 704             /*@=internalglobs@*/
 705             if (con->doExec) return execCommand(con);
 706             return -1;
 707         }
 708
 709         /* Process next long option */
 710         if (!con->os->nextCharArg) {
 711             char * localOptString, * optString;
 712             int thisopt;
 713
 714             /*@-sizeoftype@*/
 715             if (con->os->argb && PBM_ISSET(con->os->next, con->os->argb)) {
 716                 con->os->next++;
 717                 continue;
 718             }
 719             /*@=sizeoftype@*/
 720             thisopt = con->os->next;
 721             if (con->os->argv != NULL)  /* XXX can't happen */
 722             origOptString = con->os->argv[con->os->next++];
 723
 724             if (origOptString == NULL)  /* XXX can't happen */
 725                 return POPT_ERROR_BADOPT;
 726
 727             if (con->restLeftover || *origOptString != '-') {
 728                 if (con->flags & POPT_CONTEXT_POSIXMEHARDER)
 729                     con->restLeftover = 1;
 730                 if (con->flags & POPT_CONTEXT_ARG_OPTS) {
 731                     con->os->nextArg = xstrdup(origOptString);
 732                     return 0;
 733                 }
 734                 if (con->leftovers != NULL)     /* XXX can't happen */
 735                     con->leftovers[con->numLeftovers++] = origOptString;
 736                 continue;
 737             }
 738
 739             /* Make a copy we can hack at */
 740             localOptString = optString =
 741                 strcpy(alloca(strlen(origOptString) + 1), origOptString);
 742
 743             if (optString[0] == '\0')
 744                 return POPT_ERROR_BADOPT;
 745
 746             if (optString[1] == '-' && !optString[2]) {
 747                 con->restLeftover = 1;
 748                 continue;
 749             } else {
 750                 char *oe;
 751                 int singleDash;
 752
 753                 optString++;
 754                 if (*optString == '-')
 755                     singleDash = 0, optString++;
 756                 else
 757                     singleDash = 1;
 758
 759                 /* XXX aliases with arg substitution need "--alias=arg" */
 760                 if (handleAlias(con, optString, '\0', NULL))
 761                     continue;
 762
 763                 if (handleExec(con, optString, '\0'))
 764                     continue;
 765
 766                 /* Check for "--long=arg" option. */
 767                 for (oe = optString; *oe && *oe != '='; oe++)
 768                     {};
 769                 if (*oe == '=') {
 770                     *oe++ = '\0';
 771                     /* XXX longArg is mapped back to persistent storage. */
 772                     longArg = origOptString + (oe - localOptString);
 773                 }
 774
 775                 opt = findOption(con->options, optString, '\0', &cb, &cbData,
 776                                  singleDash);
 777                 if (!opt && !singleDash)
 778                     return POPT_ERROR_BADOPT;
 779             }
 780
 781             if (!opt) {
 782                 con->os->nextCharArg = origOptString + 1;
 783             } else {
 784                 if (con->os == con->optionStack &&
 785                    opt->argInfo & POPT_ARGFLAG_STRIP)
 786                 {
 787                     canstrip = 1;
 788                     poptStripArg(con, thisopt);
 789                 }
 790                 shorty = 0;
 791             }
 792         }
 793
 794         /* Process next short option */
 795         /*@-branchstate@*/              /* FIX: W2DO? */
 796         if (con->os->nextCharArg) {
 797             origOptString = con->os->nextCharArg;
 798
 799             con->os->nextCharArg = NULL;
 800
 801             if (handleAlias(con, NULL, *origOptString, origOptString + 1))
 802                 continue;
 803
 804             if (handleExec(con, NULL, *origOptString)) {
 805                 /* Restore rest of short options for further processing */
 806                 origOptString++;
 807                 if (*origOptString != '\0')
 808                     con->os->nextCharArg = origOptString;
 809                 continue;
 810             }
 811
 812             opt = findOption(con->options, NULL, *origOptString, &cb,
 813                              &cbData, 0);
 814             if (!opt)
 815                 return POPT_ERROR_BADOPT;
 816             shorty = 1;
 817
 818             origOptString++;
 819             if (*origOptString != '\0')
 820                 con->os->nextCharArg = origOptString;
 821         }
 822         /*@=branchstate@*/
 823
 824         if (opt == NULL) return POPT_ERROR_BADOPT;      /* XXX can't happen */
 825         if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE) {
 826             if (poptSaveInt((int *)opt->arg, opt->argInfo, 1L))
 827                 return POPT_ERROR_BADOPERATION;
 828         } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL) {
 829             if (opt->arg) {
 830                 if (poptSaveInt((int *)opt->arg, opt->argInfo, (long)opt->val))
 831                     return POPT_ERROR_BADOPERATION;
 832             }
 833         } else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
 834             con->os->nextArg = _free(con->os->nextArg);
 835             /*@-usedef@*/       /* FIX: W2DO? */
 836             if (longArg) {
 837             /*@=usedef@*/
 838                 longArg = expandNextArg(con, longArg);
 839                 con->os->nextArg = longArg;
 840             } else if (con->os->nextCharArg) {
 841                 longArg = expandNextArg(con, con->os->nextCharArg);
 842                 con->os->nextArg = longArg;
 843                 con->os->nextCharArg = NULL;
 844             } else {
 845                 while (con->os->next == con->os->argc &&
 846                        con->os > con->optionStack) {
 847                     cleanOSE(con->os--);
 848                 }
 849                 if (con->os->next == con->os->argc) {
 850                     if (!(opt->argInfo & POPT_ARGFLAG_OPTIONAL))
 851                         /*@-compdef@*/  /* FIX: con->os->argv not defined */
 852                         return POPT_ERROR_NOARG;
 853                         /*@=compdef@*/
 854                     con->os->nextArg = NULL;
 855                 } else {
 856
 857                     /*
 858                      * Make sure this isn't part of a short arg or the
 859                      * result of an alias expansion.
 860                      */
 861                     if (con->os == con->optionStack &&
 862                         (opt->argInfo & POPT_ARGFLAG_STRIP) &&
 863                         canstrip) {
 864                         poptStripArg(con, con->os->next);
 865                     }
 866
 867                     if (con->os->argv != NULL) {        /* XXX can't happen */
 868                         /* XXX watchout: subtle side-effects live here. */
 869                         longArg = con->os->argv[con->os->next++];
 870                         longArg = expandNextArg(con, longArg);
 871                         con->os->nextArg = longArg;
 872                     }
 873                 }
 874             }
 875             longArg = NULL;
 876
 877             if (opt->arg) {
 878                 switch (opt->argInfo & POPT_ARG_MASK) {
 879                 case POPT_ARG_STRING:
 880                     /* XXX memory leak, hard to plug */
 881                     *((const char **) opt->arg) = (con->os->nextArg)
 882                         ? xstrdup(con->os->nextArg) : NULL;
 883                     /*@switchbreak@*/ break;
 884
 885                 case POPT_ARG_INT:
 886                 case POPT_ARG_LONG:
 887                 {   long aLong = 0;
 888                     char *end;
 889
 890                     if (con->os->nextArg) {
 891                         aLong = strtol(con->os->nextArg, &end, 0);
 892                         if (!(end && *end == '\0'))
 893                             return POPT_ERROR_BADNUMBER;
 894                     }
 895
 896                     if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_LONG) {
 897                         if (aLong == LONG_MIN || aLong == LONG_MAX)
 898                             return POPT_ERROR_OVERFLOW;
 899                         if (poptSaveLong((long *)opt->arg, opt->argInfo, aLong))
 900                             return POPT_ERROR_BADOPERATION;
 901                     } else {
 902                         if (aLong > INT_MAX || aLong < INT_MIN)
 903                             return POPT_ERROR_OVERFLOW;
 904                         if (poptSaveInt((int *)opt->arg, opt->argInfo, aLong))
 905                             return POPT_ERROR_BADOPERATION;
 906                     }
 907                 }   /*@switchbreak@*/ break;
 908
 909                 case POPT_ARG_FLOAT:
 910                 case POPT_ARG_DOUBLE:
 911                 {   double aDouble = 0.0;
 912                     char *end;
 913
 914                     if (con->os->nextArg) {
 915                         /*@-mods@*/
 916                         int saveerrno = errno;
 917                         errno = 0;
 918                         aDouble = strtod(con->os->nextArg, &end);
 919                         if (errno == ERANGE)
 920                             return POPT_ERROR_OVERFLOW;
 921                         errno = saveerrno;
 922                         /*@=mods@*/
 923                         if (*end != '\0')
 924                             return POPT_ERROR_BADNUMBER;
 925                     }
 926
 927                     if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_DOUBLE) {
 928                         *((double *) opt->arg) = aDouble;
 929                     } else {
 930 #ifndef _ABS
 931 #define _ABS(a) ((((a) - 0.0) < DBL_EPSILON) ? -(a) : (a))
 932 #endif
 933                         if ((_ABS(aDouble) - FLT_MAX) > DBL_EPSILON)
 934                             return POPT_ERROR_OVERFLOW;
 935                         if ((FLT_MIN - _ABS(aDouble)) > DBL_EPSILON)
 936                             return POPT_ERROR_OVERFLOW;
 937                         *((float *) opt->arg) = aDouble;
 938                     }
 939                 }   /*@switchbreak@*/ break;
 940                 default:
 941                     fprintf(stdout,
 942                         POPT_("option type (%d) not implemented in popt\n"),
 943                         (opt->argInfo & POPT_ARG_MASK));
 944                     exit(EXIT_FAILURE);
 945                     /*@notreached@*/ /*@switchbreak@*/ break;
 946                 }
 947             }
 948         }
 949
 950         if (cb) {
 951             /*@-internalglobs@*/
 952             invokeCallbacksOPTION(con, con->options, opt, cbData, shorty);
 953             /*@=internalglobs@*/
 954         } else if (opt->val && ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL))
 955             done = 1;
 956
 957         if ((con->finalArgvCount + 2) >= (con->finalArgvAlloced)) {
 958             con->finalArgvAlloced += 10;
 959             con->finalArgv = realloc(con->finalArgv,
 960                             sizeof(*con->finalArgv) * con->finalArgvAlloced);
 961         }
 962
 963         if (con->finalArgv != NULL)
 964         {   char *s = malloc((opt->longName ? strlen(opt->longName) : 0) + 3);
 965             if (s != NULL) {    /* XXX can't happen */
 966                 if (opt->longName)
 967                     sprintf(s, "%s%s",
 968                         ((opt->argInfo & POPT_ARGFLAG_ONEDASH) ? "-" : "--"),
 969                         opt->longName);
 970                 else
 971                     sprintf(s, "-%c", opt->shortName);
 972                 con->finalArgv[con->finalArgvCount++] = s;
 973             } else
 974                 con->finalArgv[con->finalArgvCount++] = NULL;
 975         }
 976
 977         if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE)
 978             /*@-ifempty@*/ ; /*@=ifempty@*/
 979         else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL)
 980             /*@-ifempty@*/ ; /*@=ifempty@*/
 981         else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
 982             if (con->finalArgv != NULL && con->os->nextArg)
 983                 con->finalArgv[con->finalArgvCount++] =
 984                         /*@-nullpass@*/ /* LCL: con->os->nextArg != NULL */
 985                         xstrdup(con->os->nextArg);
 986                         /*@=nullpass@*/
 987         }
 988     }
 989
 990     return (opt ? opt->val : -1);       /* XXX can't happen */
 991 }
 992 /*@=boundswrite@*/
 993
 994 const char * poptGetOptArg(poptContext con)
 995 {
 996     const char * ret = NULL;
 997     /*@-branchstate@*/
 998     if (con) {
 999         ret = con->os->nextArg;
1000         con->os->nextArg = NULL;
1001     }
1002     /*@=branchstate@*/
1003     return ret;
1004 }
1005
1006 const char * poptGetArg(poptContext con)
1007 {
1008     const char * ret = NULL;
1009     if (con && con->leftovers != NULL && con->nextLeftover < con->numLeftovers)
1010         ret = con->leftovers[con->nextLeftover++];
1011     return ret;
1012 }
1013
1014 const char * poptPeekArg(poptContext con)
1015 {
1016     const char * ret = NULL;
1017     if (con && con->leftovers != NULL && con->nextLeftover < con->numLeftovers)
1018         ret = con->leftovers[con->nextLeftover];
1019     return ret;
1020 }
1021
1022 /*@-boundswrite@*/
1023 const char ** poptGetArgs(poptContext con)
1024 {
1025     if (con == NULL ||
1026         con->leftovers == NULL || con->numLeftovers == con->nextLeftover)
1027         return NULL;
1028
1029     /* some apps like [like RPM ;-) ] need this NULL terminated */
1030     con->leftovers[con->numLeftovers] = NULL;
1031
1032     /*@-nullret -nullstate @*/  /* FIX: typedef double indirection. */
1033     return (con->leftovers + con->nextLeftover);
1034     /*@=nullret =nullstate @*/
1035 }
1036 /*@=boundswrite@*/
1037
1038 poptContext poptFreeContext(poptContext con)
1039 {
1040     poptItem item;
1041     int i;
1042
1043     if (con == NULL) return con;
1044     poptResetContext(con);
1045     con->os->argb = _free(con->os->argb);
1046
1047     if (con->aliases != NULL)
1048     for (i = 0; i < con->numAliases; i++) {
1049         item = con->aliases + i;
1050         /*@-modobserver -observertrans -dependenttrans@*/
1051         item->option.longName = _free(item->option.longName);
1052         item->option.descrip = _free(item->option.descrip);
1053         item->option.argDescrip = _free(item->option.argDescrip);
1054         /*@=modobserver =observertrans =dependenttrans@*/
1055         item->argv = _free(item->argv);
1056     }
1057     con->aliases = _free(con->aliases);
1058
1059     if (con->execs != NULL)
1060     for (i = 0; i < con->numExecs; i++) {
1061         item = con->execs + i;
1062         /*@-modobserver -observertrans -dependenttrans@*/
1063         item->option.longName = _free(item->option.longName);
1064         item->option.descrip = _free(item->option.descrip);
1065         item->option.argDescrip = _free(item->option.argDescrip);
1066         /*@=modobserver =observertrans =dependenttrans@*/
1067         item->argv = _free(item->argv);
1068     }
1069     con->execs = _free(con->execs);
1070
1071     con->leftovers = _free(con->leftovers);
1072     con->finalArgv = _free(con->finalArgv);
1073     con->appName = _free(con->appName);
1074     con->otherHelp = _free(con->otherHelp);
1075     con->execPath = _free(con->execPath);
1076     con->arg_strip = PBM_FREE(con->arg_strip);
1077
1078     con = _free(con);
1079     return con;
1080 }
1081
1082 int poptAddAlias(poptContext con, struct poptAlias alias,
1083                 /*@unused@*/ int flags)
1084 {
1085     poptItem item = alloca(sizeof(*item));
1086     memset(item, 0, sizeof(*item));
1087     item->option.longName = alias.longName;
1088     item->option.shortName = alias.shortName;
1089     item->option.argInfo = POPT_ARGFLAG_DOC_HIDDEN;
1090     item->option.arg = 0;
1091     item->option.val = 0;
1092     item->option.descrip = NULL;
1093     item->option.argDescrip = NULL;
1094     item->argc = alias.argc;
1095     item->argv = alias.argv;
1096     return poptAddItem(con, item, 0);
1097 }
1098
1099 /*@-boundswrite@*/
1100 /*@-mustmod@*/ /* LCL: con not modified? */
1101 int poptAddItem(poptContext con, poptItem newItem, int flags)
1102 {
1103     poptItem * items, item;
1104     int * nitems;
1105
1106     switch (flags) {
1107     case 1:
1108         items = &con->execs;
1109         nitems = &con->numExecs;
1110         break;
1111     case 0:
1112         items = &con->aliases;
1113         nitems = &con->numAliases;
1114         break;
1115     default:
1116         return 1;
1117         /*@notreached@*/ break;
1118     }
1119
1120     *items = realloc((*items), ((*nitems) + 1) * sizeof(**items));
1121     if ((*items) == NULL)
1122         return 1;
1123
1124     item = (*items) + (*nitems);
1125
1126     item->option.longName =
1127         (newItem->option.longName ? xstrdup(newItem->option.longName) : NULL);
1128     item->option.shortName = newItem->option.shortName;
1129     item->option.argInfo = newItem->option.argInfo;
1130     item->option.arg = newItem->option.arg;
1131     item->option.val = newItem->option.val;
1132     item->option.descrip =
1133         (newItem->option.descrip ? xstrdup(newItem->option.descrip) : NULL);
1134     item->option.argDescrip =
1135        (newItem->option.argDescrip ? xstrdup(newItem->option.argDescrip) : NULL);
1136     item->argc = newItem->argc;
1137     item->argv = newItem->argv;
1138
1139     (*nitems)++;
1140
1141     return 0;
1142 }
1143 /*@=mustmod@*/
1144 /*@=boundswrite@*/
1145
1146 const char * poptBadOption(poptContext con, int flags)
1147 {
1148     struct optionStackEntry * os = NULL;
1149
1150     if (con != NULL)
1151         os = (flags & POPT_BADOPTION_NOALIAS) ? con->optionStack : con->os;
1152
1153     /*@-nullderef@*/    /* LCL: os->argv != NULL */
1154     return (os && os->argv ? os->argv[os->next - 1] : NULL);
1155     /*@=nullderef@*/
1156 }
1157
1158 const char *poptStrerror(const int error)
1159 {
1160     switch (error) {
1161       case POPT_ERROR_NOARG:
1162         return POPT_("missing argument");
1163       case POPT_ERROR_BADOPT:
1164         return POPT_("unknown option");
1165       case POPT_ERROR_BADOPERATION:
1166         return POPT_("mutually exclusive logical operations requested");
1167       case POPT_ERROR_NULLARG:
1168         return POPT_("opt->arg should not be NULL");
1169       case POPT_ERROR_OPTSTOODEEP:
1170         return POPT_("aliases nested too deeply");
1171       case POPT_ERROR_BADQUOTE:
1172         return POPT_("error in parameter quoting");
1173       case POPT_ERROR_BADNUMBER:
1174         return POPT_("invalid numeric value");
1175       case POPT_ERROR_OVERFLOW:
1176         return POPT_("number too large or too small");
1177       case POPT_ERROR_MALLOC:
1178         return POPT_("memory allocation failed");
1179       case POPT_ERROR_ERRNO:
1180         return strerror(errno);
1181       default:
1182         return POPT_("unknown error");
1183     }
1184 }
1185
1186 int poptStuffArgs(poptContext con, const char ** argv)
1187 {
1188     int argc;
1189     int rc;
1190
1191     if ((con->os - con->optionStack) == POPT_OPTION_DEPTH)
1192         return POPT_ERROR_OPTSTOODEEP;
1193
1194     for (argc = 0; argv[argc]; argc++)
1195         {};
1196
1197     con->os++;
1198     con->os->next = 0;
1199     con->os->nextArg = NULL;
1200     con->os->nextCharArg = NULL;
1201     con->os->currAlias = NULL;
1202     rc = poptDupArgv(argc, argv, &con->os->argc, &con->os->argv);
1203     con->os->argb = NULL;
1204     con->os->stuffed = 1;
1205
1206     return rc;
1207 }
1208
1209 const char * poptGetInvocationName(poptContext con)
1210 {
1211     return (con->os->argv ? con->os->argv[0] : "");
1212 }
1213
1214 /*@-boundswrite@*/
1215 int poptStrippedArgv(poptContext con, int argc, char ** argv)
1216 {
1217     int numargs = argc;
1218     int j = 1;
1219     int i;
1220
1221     /*@-sizeoftype@*/
1222     if (con->arg_strip)
1223     for (i = 1; i < argc; i++) {
1224         if (PBM_ISSET(i, con->arg_strip))
1225             numargs--;
1226     }
1227
1228     for (i = 1; i < argc; i++) {
1229         if (con->arg_strip && PBM_ISSET(i, con->arg_strip))
1230             continue;
1231         argv[j] = (j < numargs) ? argv[i] : NULL;
1232         j++;
1233     }
1234     /*@=sizeoftype@*/
1235
1236     return numargs;
1237 }
1238 /*@=boundswrite@*/