source: branches/samba-3.5.x/lib/popt/popt.c@ 824

Last change on this file since 824 was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 34.0 KB
Line 
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@*/
23int _popt_debug = 0;
24#endif
25
26#ifndef HAVE_STRERROR
27static 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
52void poptSetExecPath(poptContext con, const char * path, int allowAbsolute)
53{
54 con->execPath = (const char *)_free(con->execPath);
55 con->execPath = xstrdup(path);
56 con->execAbsolute = allowAbsolute;
57 /*@-nullstate@*/ /* LCL: con->execPath can be NULL? */
58 return;
59 /*@=nullstate@*/
60}
61
62static void invokeCallbacksPRE(poptContext con, const struct poptOption * opt)
63 /*@globals internalState@*/
64 /*@modifies internalState@*/
65{
66 if (opt != NULL)
67 for (; opt->longName || opt->shortName || opt->arg; opt++) {
68 if (opt->arg == NULL) continue; /* XXX program error. */
69 if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
70 /* Recurse on included sub-tables. */
71 invokeCallbacksPRE(con, (const struct poptOption *)opt->arg);
72 } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
73 (opt->argInfo & POPT_CBFLAG_PRE))
74 { /*@-castfcnptr@*/
75 poptCallbackType cb = (poptCallbackType)opt->arg;
76 /*@=castfcnptr@*/
77 /* Perform callback. */
78 /*@-moduncon -noeffectuncon @*/
79 cb(con, POPT_CALLBACK_REASON_PRE, NULL, NULL, opt->descrip);
80 /*@=moduncon =noeffectuncon @*/
81 }
82 }
83}
84
85static void invokeCallbacksPOST(poptContext con, const struct poptOption * opt)
86 /*@globals internalState@*/
87 /*@modifies internalState@*/
88{
89 if (opt != NULL)
90 for (; opt->longName || opt->shortName || opt->arg; opt++) {
91 if (opt->arg == NULL) continue; /* XXX program error. */
92 if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
93 /* Recurse on included sub-tables. */
94 invokeCallbacksPOST(con, (const struct poptOption *)opt->arg);
95 } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
96 (opt->argInfo & POPT_CBFLAG_POST))
97 { /*@-castfcnptr@*/
98 poptCallbackType cb = (poptCallbackType)opt->arg;
99 /*@=castfcnptr@*/
100 /* Perform callback. */
101 /*@-moduncon -noeffectuncon @*/
102 cb(con, POPT_CALLBACK_REASON_POST, NULL, NULL, opt->descrip);
103 /*@=moduncon =noeffectuncon @*/
104 }
105 }
106}
107
108static void invokeCallbacksOPTION(poptContext con,
109 const struct poptOption * opt,
110 const struct poptOption * myOpt,
111 /*@null@*/ const void * myData, int shorty)
112 /*@globals internalState@*/
113 /*@modifies internalState@*/
114{
115 const struct poptOption * cbopt = NULL;
116
117 if (opt != NULL)
118 for (; opt->longName || opt->shortName || opt->arg; opt++) {
119 if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
120 /* Recurse on included sub-tables. */
121 if (opt->arg != NULL) /* XXX program error */
122 invokeCallbacksOPTION(con, (const struct poptOption *)opt->arg,
123 myOpt, myData, shorty);
124 } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK &&
125 !(opt->argInfo & POPT_CBFLAG_SKIPOPTION)) {
126 /* Save callback info. */
127 cbopt = opt;
128 } else if (cbopt != NULL &&
129 ((myOpt->shortName && opt->shortName && shorty &&
130 myOpt->shortName == opt->shortName) ||
131 (myOpt->longName && opt->longName &&
132 /*@-nullpass@*/ /* LCL: opt->longName != NULL */
133 !strcmp(myOpt->longName, opt->longName)))
134 /*@=nullpass@*/
135 )
136 { /*@-castfcnptr@*/
137 poptCallbackType cb = (poptCallbackType)cbopt->arg;
138 /*@=castfcnptr@*/
139 const void * cbData = (cbopt->descrip ? cbopt->descrip : myData);
140 /* Perform callback. */
141 if (cb != NULL) { /* XXX program error */
142 /*@-moduncon -noeffectuncon @*/
143 cb(con, POPT_CALLBACK_REASON_OPTION, myOpt,
144 con->os->nextArg, cbData);
145 /*@=moduncon =noeffectuncon @*/
146 }
147 /* Terminate (unless explcitly continuing). */
148 if (!(cbopt->argInfo & POPT_CBFLAG_CONTINUE))
149 return;
150 }
151 }
152}
153
154poptContext poptGetContext(const char * name, int argc, const char ** argv,
155 const struct poptOption * options, int flags)
156{
157 poptContext con = (poptContext)malloc(sizeof(*con));
158
159 if (con == NULL) return NULL; /* XXX can't happen */
160 memset(con, 0, sizeof(*con));
161
162 con->os = con->optionStack;
163 con->os->argc = argc;
164 /*@-dependenttrans -assignexpose@*/ /* FIX: W2DO? */
165 con->os->argv = argv;
166 /*@=dependenttrans =assignexpose@*/
167 con->os->argb = NULL;
168
169 if (!(flags & POPT_CONTEXT_KEEP_FIRST))
170 con->os->next = 1; /* skip argv[0] */
171
172 con->leftovers = (const char **)calloc( (argc + 1),
173 sizeof(*con->leftovers) );
174 /*@-dependenttrans -assignexpose@*/ /* FIX: W2DO? */
175 con->options = options;
176 /*@=dependenttrans =assignexpose@*/
177 con->aliases = NULL;
178 con->numAliases = 0;
179 con->flags = flags;
180 con->execs = NULL;
181 con->numExecs = 0;
182 con->finalArgvAlloced = argc * 2;
183 con->finalArgv = (const char **)calloc( con->finalArgvAlloced,
184 sizeof(*con->finalArgv) );
185 con->execAbsolute = 1;
186 con->arg_strip = NULL;
187
188 if (getenv("POSIXLY_CORRECT") || getenv("POSIX_ME_HARDER"))
189 con->flags |= POPT_CONTEXT_POSIXMEHARDER;
190
191 if (name) {
192 char * t = (char *)malloc(strlen(name) + 1);
193 if (t) con->appName = strcpy(t, name);
194 }
195
196 /*@-internalglobs@*/
197 invokeCallbacksPRE(con, con->options);
198 /*@=internalglobs@*/
199
200 return con;
201}
202
203static void cleanOSE(/*@special@*/ struct optionStackEntry *os)
204 /*@uses os @*/
205 /*@releases os->nextArg, os->argv, os->argb @*/
206 /*@modifies os @*/
207{
208 os->nextArg = (const char *)_free(os->nextArg);
209 os->argv = (const char **)_free(os->argv);
210 os->argb = (pbm_set *)PBM_FREE(os->argb);
211}
212
213/*@-boundswrite@*/
214void poptResetContext(poptContext con)
215{
216 int i;
217
218 if (con == NULL) return;
219 while (con->os > con->optionStack) {
220 cleanOSE(con->os--);
221 }
222 con->os->argb = (pbm_set *)PBM_FREE(con->os->argb);
223 con->os->currAlias = NULL;
224 con->os->nextCharArg = NULL;
225 con->os->nextArg = NULL;
226 con->os->next = 1; /* skip argv[0] */
227
228 con->numLeftovers = 0;
229 con->nextLeftover = 0;
230 con->restLeftover = 0;
231 con->doExec = NULL;
232
233 if (con->finalArgv != NULL)
234 for (i = 0; i < con->finalArgvCount; i++) {
235 /*@-unqualifiedtrans@*/ /* FIX: typedef double indirection. */
236 con->finalArgv[i] = (const char *)_free(con->finalArgv[i]);
237 /*@=unqualifiedtrans@*/
238 }
239
240 con->finalArgvCount = 0;
241 con->arg_strip = ( pbm_set *)PBM_FREE(con->arg_strip);
242 /*@-nullstate@*/ /* FIX: con->finalArgv != NULL */
243 return;
244 /*@=nullstate@*/
245}
246/*@=boundswrite@*/
247
248/* Only one of longName, shortName should be set, not both. */
249/*@-boundswrite@*/
250static int handleExec(/*@special@*/ poptContext con,
251 /*@null@*/ const char * longName, char shortName)
252 /*@uses con->execs, con->numExecs, con->flags, con->doExec,
253 con->finalArgv, con->finalArgvAlloced, con->finalArgvCount @*/
254 /*@modifies con @*/
255{
256 poptItem item;
257 int i;
258
259 if (con->execs == NULL || con->numExecs <= 0) /* XXX can't happen */
260 return 0;
261
262 for (i = con->numExecs - 1; i >= 0; i--) {
263 item = con->execs + i;
264 if (longName && !(item->option.longName &&
265 !strcmp(longName, item->option.longName)))
266 continue;
267 else if (shortName != item->option.shortName)
268 continue;
269 break;
270 }
271 if (i < 0) return 0;
272
273
274 if (con->flags & POPT_CONTEXT_NO_EXEC)
275 return 1;
276
277 if (con->doExec == NULL) {
278 con->doExec = con->execs + i;
279 return 1;
280 }
281
282 /* We already have an exec to do; remember this option for next
283 time 'round */
284 if ((con->finalArgvCount + 1) >= (con->finalArgvAlloced)) {
285 con->finalArgvAlloced += 10;
286 con->finalArgv = (const char **)realloc(con->finalArgv,
287 sizeof(*con->finalArgv) * con->finalArgvAlloced);
288 }
289
290 i = con->finalArgvCount++;
291 if (con->finalArgv != NULL) /* XXX can't happen */
292 { char *s = (char *)malloc((longName ? strlen(longName) : 0) + 3);
293 if (s != NULL) { /* XXX can't happen */
294 if (longName)
295 sprintf(s, "--%s", longName);
296 else
297 sprintf(s, "-%c", shortName);
298 con->finalArgv[i] = s;
299 } else
300 con->finalArgv[i] = NULL;
301 }
302
303 /*@-nullstate@*/ /* FIX: con->finalArgv[] == NULL */
304 return 1;
305 /*@=nullstate@*/
306}
307/*@=boundswrite@*/
308
309/* Only one of longName, shortName may be set at a time */
310static int handleAlias(/*@special@*/ poptContext con,
311 /*@null@*/ const char * longName, char shortName,
312 /*@exposed@*/ /*@null@*/ const char * nextCharArg)
313 /*@uses con->aliases, con->numAliases, con->optionStack, con->os,
314 con->os->currAlias, con->os->currAlias->option.longName @*/
315 /*@modifies con @*/
316{
317 poptItem item = con->os->currAlias;
318 int rc;
319 int i;
320
321 if (item) {
322 if (longName && (item->option.longName &&
323 !strcmp(longName, item->option.longName)))
324 return 0;
325 if (shortName && shortName == item->option.shortName)
326 return 0;
327 }
328
329 if (con->aliases == NULL || con->numAliases <= 0) /* XXX can't happen */
330 return 0;
331
332 for (i = con->numAliases - 1; i >= 0; i--) {
333 item = con->aliases + i;
334 if (longName && !(item->option.longName &&
335 !strcmp(longName, item->option.longName)))
336 continue;
337 else if (shortName != item->option.shortName)
338 continue;
339 break;
340 }
341 if (i < 0) return 0;
342
343 if ((con->os - con->optionStack + 1) == POPT_OPTION_DEPTH)
344 return POPT_ERROR_OPTSTOODEEP;
345
346/*@-boundsread@*/
347 if (nextCharArg && *nextCharArg)
348 con->os->nextCharArg = nextCharArg;
349/*@=boundsread@*/
350
351 con->os++;
352 con->os->next = 0;
353 con->os->stuffed = 0;
354 con->os->nextArg = NULL;
355 con->os->nextCharArg = NULL;
356 con->os->currAlias = con->aliases + i;
357 rc = poptDupArgv(con->os->currAlias->argc, con->os->currAlias->argv,
358 &con->os->argc, &con->os->argv);
359 con->os->argb = NULL;
360
361 return (rc ? rc : 1);
362}
363
364/*@-bounds -boundswrite @*/
365static int execCommand(poptContext con)
366 /*@globals internalState @*/
367 /*@modifies internalState @*/
368{
369 poptItem item = con->doExec;
370 const char ** argv;
371 int argc = 0;
372 int rc;
373
374 if (item == NULL) /*XXX can't happen*/
375 return POPT_ERROR_NOARG;
376
377 if (item->argv == NULL || item->argc < 1 ||
378 (!con->execAbsolute && strchr(item->argv[0], '/')))
379 return POPT_ERROR_NOARG;
380
381 argv = (const char **)malloc(
382 sizeof(*argv) * (6 + item->argc + con->numLeftovers + con->finalArgvCount));
383 if (argv == NULL) return POPT_ERROR_MALLOC; /* XXX can't happen */
384
385 if (!strchr(item->argv[0], '/') && con->execPath) {
386 char *s = (char *)alloca(
387 strlen(con->execPath) + strlen(item->argv[0]) + sizeof("/"));
388 sprintf(s, "%s/%s", con->execPath, item->argv[0]);
389 argv[argc] = s;
390 } else {
391 argv[argc] = findProgramPath(item->argv[0]);
392 }
393 if (argv[argc++] == NULL) return POPT_ERROR_NOARG;
394
395 if (item->argc > 1) {
396 memcpy(argv + argc, item->argv + 1, sizeof(*argv) * (item->argc - 1));
397 argc += (item->argc - 1);
398 }
399
400 if (con->finalArgv != NULL && con->finalArgvCount > 0) {
401 memcpy(argv + argc, con->finalArgv,
402 sizeof(*argv) * con->finalArgvCount);
403 argc += con->finalArgvCount;
404 }
405
406 if (con->leftovers != NULL && con->numLeftovers > 0) {
407#if 0
408 argv[argc++] = "--";
409#endif
410 memcpy(argv + argc, con->leftovers, sizeof(*argv) * con->numLeftovers);
411 argc += con->numLeftovers;
412 }
413
414 argv[argc] = NULL;
415
416#ifdef __hpux
417 rc = setresuid(getuid(), getuid(),-1);
418 if (rc) return POPT_ERROR_ERRNO;
419#else
420/*
421 * XXX " ... on BSD systems setuid() should be preferred over setreuid()"
422 * XXX sez' Timur Bakeyev <mc@bat.ru>
423 * XXX from Norbert Warmuth <nwarmuth@privat.circular.de>
424 */
425#if defined(HAVE_SETUID)
426 rc = setuid(getuid());
427 if (rc) return POPT_ERROR_ERRNO;
428#elif defined (HAVE_SETREUID)
429 rc = setreuid(getuid(), getuid()); /*hlauer: not portable to hpux9.01 */
430 if (rc) return POPT_ERROR_ERRNO;
431#else
432 ; /* Can't drop privileges */
433#endif
434#endif
435
436 if (argv[0] == NULL)
437 return POPT_ERROR_NOARG;
438
439#ifdef MYDEBUG
440if (_popt_debug)
441 { const char ** avp;
442 fprintf(stderr, "==> execvp(%s) argv[%d]:", argv[0], argc);
443 for (avp = argv; *avp; avp++)
444 fprintf(stderr, " '%s'", *avp);
445 fprintf(stderr, "\n");
446 }
447#endif
448
449 rc = execvp(argv[0], (char *const *)argv);
450 /* notreached */
451 if (rc) {
452 return POPT_ERROR_ERRNO;
453 }
454
455 return 0;
456}
457/*@=bounds =boundswrite @*/
458
459/*@-boundswrite@*/
460/*@observer@*/ /*@null@*/ static const struct poptOption *
461findOption(const struct poptOption * opt, /*@null@*/ const char * longName,
462 char shortName,
463 /*@null@*/ /*@out@*/ poptCallbackType * callback,
464 /*@null@*/ /*@out@*/ const void ** callbackData,
465 int singleDash)
466 /*@modifies *callback, *callbackData */
467{
468 const struct poptOption * cb = NULL;
469
470 /* This happens when a single - is given */
471 if (singleDash && !shortName && (longName && *longName == '\0'))
472 shortName = '-';
473
474 for (; opt->longName || opt->shortName || opt->arg; opt++) {
475
476 if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
477 const struct poptOption * opt2;
478
479 /* Recurse on included sub-tables. */
480 if (opt->arg == NULL) continue; /* XXX program error */
481 opt2 = findOption((const struct poptOption *)opt->arg, longName,
482 shortName, callback,
483 callbackData, singleDash);
484 if (opt2 == NULL) continue;
485 /* Sub-table data will be inheirited if no data yet. */
486 if (!(callback && *callback)) return opt2;
487 if (!(callbackData && *callbackData == NULL)) return opt2;
488 /*@-observertrans -dependenttrans @*/
489 *callbackData = opt->descrip;
490 /*@=observertrans =dependenttrans @*/
491 return opt2;
492 } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) {
493 cb = opt;
494 } else if (longName && opt->longName &&
495 (!singleDash || (opt->argInfo & POPT_ARGFLAG_ONEDASH)) &&
496 /*@-nullpass@*/ /* LCL: opt->longName != NULL */
497 !strcmp(longName, opt->longName))
498 /*@=nullpass@*/
499 {
500 break;
501 } else if (shortName && shortName == opt->shortName) {
502 break;
503 }
504 }
505
506 if (!opt->longName && !opt->shortName)
507 return NULL;
508 /*@-modobserver -mods @*/
509 if (callback) *callback = NULL;
510 if (callbackData) *callbackData = NULL;
511 if (cb) {
512 if (callback)
513 /*@-castfcnptr@*/
514 *callback = (poptCallbackType)cb->arg;
515 /*@=castfcnptr@*/
516 if (!(cb->argInfo & POPT_CBFLAG_INC_DATA)) {
517 if (callbackData)
518 /*@-observertrans@*/ /* FIX: typedef double indirection. */
519 *callbackData = cb->descrip;
520 /*@=observertrans@*/
521 }
522 }
523 /*@=modobserver =mods @*/
524
525 return opt;
526}
527/*@=boundswrite@*/
528
529static const char * findNextArg(/*@special@*/ poptContext con,
530 unsigned argx, int delete_arg)
531 /*@uses con->optionStack, con->os,
532 con->os->next, con->os->argb, con->os->argc, con->os->argv @*/
533 /*@modifies con @*/
534{
535 struct optionStackEntry * os = con->os;
536 const char * arg;
537
538 do {
539 int i;
540 arg = NULL;
541 while (os->next == os->argc && os > con->optionStack) os--;
542 if (os->next == os->argc && os == con->optionStack) break;
543 if (os->argv != NULL)
544 for (i = os->next; i < os->argc; i++) {
545 /*@-sizeoftype@*/
546 if (os->argb && PBM_ISSET(i, os->argb))
547 /*@innercontinue@*/ continue;
548 if (*os->argv[i] == '-')
549 /*@innercontinue@*/ continue;
550 if (--argx > 0)
551 /*@innercontinue@*/ continue;
552 arg = os->argv[i];
553 if (delete_arg) {
554 if (os->argb == NULL) os->argb = (pbm_set *)PBM_ALLOC(os->argc);
555 if (os->argb != NULL) /* XXX can't happen */
556 PBM_SET(i, os->argb);
557 }
558 /*@innerbreak@*/ break;
559 /*@=sizeoftype@*/
560 }
561 if (os > con->optionStack) os--;
562 } while (arg == NULL);
563 return arg;
564}
565
566/*@-boundswrite@*/
567static /*@only@*/ /*@null@*/ const char *
568expandNextArg(/*@special@*/ poptContext con, const char * s)
569 /*@uses con->optionStack, con->os,
570 con->os->next, con->os->argb, con->os->argc, con->os->argv @*/
571 /*@modifies con @*/
572{
573 const char * a = NULL;
574 size_t alen;
575 char *t, *te;
576 size_t tn = strlen(s) + 1;
577 char c;
578
579 te = t = (char *)malloc(tn);;
580 if (t == NULL) return NULL; /* XXX can't happen */
581 while ((c = *s++) != '\0') {
582 switch (c) {
583#if 0 /* XXX can't do this */
584 case '\\': /* escape */
585 c = *s++;
586 /*@switchbreak@*/ break;
587#endif
588 case '!':
589 if (!(s[0] == '#' && s[1] == ':' && s[2] == '+'))
590 /*@switchbreak@*/ break;
591 /* XXX Make sure that findNextArg deletes only next arg. */
592 if (a == NULL) {
593 if ((a = findNextArg(con, 1, 1)) == NULL)
594 /*@switchbreak@*/ break;
595 }
596 s += 3;
597
598 alen = strlen(a);
599 tn += alen;
600 *te = '\0';
601 t = (char *)realloc(t, tn);
602 te = t + strlen(t);
603 strncpy(te, a, alen); te += alen;
604 continue;
605 /*@notreached@*/ /*@switchbreak@*/ break;
606 default:
607 /*@switchbreak@*/ break;
608 }
609 *te++ = c;
610 }
611 *te = '\0';
612 t = (char *)realloc(t, strlen(t) + 1); /* XXX memory leak, hard to plug */
613 return t;
614}
615/*@=boundswrite@*/
616
617static void poptStripArg(/*@special@*/ poptContext con, int which)
618 /*@uses con->arg_strip, con->optionStack @*/
619 /*@defines con->arg_strip @*/
620 /*@modifies con @*/
621{
622 /*@-sizeoftype@*/
623 if (con->arg_strip == NULL)
624 con->arg_strip = (pbm_set *)PBM_ALLOC(con->optionStack[0].argc);
625 if (con->arg_strip != NULL) /* XXX can't happen */
626 PBM_SET(which, con->arg_strip);
627 /*@=sizeoftype@*/
628 /*@-compdef@*/ /* LCL: con->arg_strip udefined? */
629 return;
630 /*@=compdef@*/
631}
632
633int poptSaveLong(long * arg, int argInfo, long aLong)
634{
635 /* XXX Check alignment, may fail on funky platforms. */
636 if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
637 return POPT_ERROR_NULLARG;
638
639 if (argInfo & POPT_ARGFLAG_NOT)
640 aLong = ~aLong;
641 switch (argInfo & POPT_ARGFLAG_LOGICALOPS) {
642 case 0:
643 *arg = aLong;
644 break;
645 case POPT_ARGFLAG_OR:
646 *arg |= aLong;
647 break;
648 case POPT_ARGFLAG_AND:
649 *arg &= aLong;
650 break;
651 case POPT_ARGFLAG_XOR:
652 *arg ^= aLong;
653 break;
654 default:
655 return POPT_ERROR_BADOPERATION;
656 /*@notreached@*/ break;
657 }
658 return 0;
659}
660
661int poptSaveInt(/*@null@*/ int * arg, int argInfo, long aLong)
662{
663 /* XXX Check alignment, may fail on funky platforms. */
664 if (arg == NULL || (((unsigned long)arg) & (sizeof(*arg)-1)))
665 return POPT_ERROR_NULLARG;
666
667 if (argInfo & POPT_ARGFLAG_NOT)
668 aLong = ~aLong;
669 switch (argInfo & POPT_ARGFLAG_LOGICALOPS) {
670 case 0:
671 *arg = aLong;
672 break;
673 case POPT_ARGFLAG_OR:
674 *arg |= aLong;
675 break;
676 case POPT_ARGFLAG_AND:
677 *arg &= aLong;
678 break;
679 case POPT_ARGFLAG_XOR:
680 *arg ^= aLong;
681 break;
682 default:
683 return POPT_ERROR_BADOPERATION;
684 /*@notreached@*/ break;
685 }
686 return 0;
687}
688
689/*@-boundswrite@*/
690/* returns 'val' element, -1 on last item, POPT_ERROR_* on error */
691int poptGetNextOpt(poptContext con)
692{
693 const struct poptOption * opt = NULL;
694 int done = 0;
695
696 if (con == NULL)
697 return -1;
698 while (!done) {
699 const char * origOptString = NULL;
700 poptCallbackType cb = NULL;
701 const void * cbData = NULL;
702 const char * longArg = NULL;
703 int canstrip = 0;
704 int shorty = 0;
705
706 while (!con->os->nextCharArg && con->os->next == con->os->argc
707 && con->os > con->optionStack) {
708 cleanOSE(con->os--);
709 }
710 if (!con->os->nextCharArg && con->os->next == con->os->argc) {
711 /*@-internalglobs@*/
712 invokeCallbacksPOST(con, con->options);
713 /*@=internalglobs@*/
714 if (con->doExec) return execCommand(con);
715 return -1;
716 }
717
718 /* Process next long option */
719 if (!con->os->nextCharArg) {
720 char * localOptString, * optString;
721 int thisopt;
722
723 /*@-sizeoftype@*/
724 if (con->os->argb && PBM_ISSET(con->os->next, con->os->argb)) {
725 con->os->next++;
726 continue;
727 }
728 /*@=sizeoftype@*/
729 thisopt = con->os->next;
730 if (con->os->argv != NULL) /* XXX can't happen */
731 origOptString = con->os->argv[con->os->next++];
732
733 if (origOptString == NULL) /* XXX can't happen */
734 return POPT_ERROR_BADOPT;
735
736 if (con->restLeftover || *origOptString != '-') {
737 if (con->flags & POPT_CONTEXT_POSIXMEHARDER)
738 con->restLeftover = 1;
739 if (con->flags & POPT_CONTEXT_ARG_OPTS) {
740 con->os->nextArg = xstrdup(origOptString);
741 return 0;
742 }
743 if (con->leftovers != NULL) /* XXX can't happen */
744 con->leftovers[con->numLeftovers++] = origOptString;
745 continue;
746 }
747
748 /* Make a copy we can hack at */
749 localOptString = optString =
750 strcpy((char *)alloca(strlen(origOptString) + 1),
751 origOptString);
752
753 if (optString[0] == '\0')
754 return POPT_ERROR_BADOPT;
755
756 if (optString[1] == '-' && !optString[2]) {
757 con->restLeftover = 1;
758 continue;
759 } else {
760 char *oe;
761 int singleDash;
762
763 optString++;
764 if (*optString == '-')
765 singleDash = 0, optString++;
766 else
767 singleDash = 1;
768
769 /* XXX aliases with arg substitution need "--alias=arg" */
770 if (handleAlias(con, optString, '\0', NULL))
771 continue;
772
773 if (handleExec(con, optString, '\0'))
774 continue;
775
776 /* Check for "--long=arg" option. */
777 for (oe = optString; *oe && *oe != '='; oe++)
778 {};
779 if (*oe == '=') {
780 *oe++ = '\0';
781 /* XXX longArg is mapped back to persistent storage. */
782 longArg = origOptString + (oe - localOptString);
783 }
784
785 opt = findOption(con->options, optString, '\0', &cb, &cbData,
786 singleDash);
787 if (!opt && !singleDash)
788 return POPT_ERROR_BADOPT;
789 }
790
791 if (!opt) {
792 con->os->nextCharArg = origOptString + 1;
793 } else {
794 if (con->os == con->optionStack &&
795 opt->argInfo & POPT_ARGFLAG_STRIP)
796 {
797 canstrip = 1;
798 poptStripArg(con, thisopt);
799 }
800 shorty = 0;
801 }
802 }
803
804 /* Process next short option */
805 /*@-branchstate@*/ /* FIX: W2DO? */
806 if (con->os->nextCharArg) {
807 origOptString = con->os->nextCharArg;
808
809 con->os->nextCharArg = NULL;
810
811 if (handleAlias(con, NULL, *origOptString, origOptString + 1))
812 continue;
813
814 if (handleExec(con, NULL, *origOptString)) {
815 /* Restore rest of short options for further processing */
816 origOptString++;
817 if (*origOptString != '\0')
818 con->os->nextCharArg = origOptString;
819 continue;
820 }
821
822 opt = findOption(con->options, NULL, *origOptString, &cb,
823 &cbData, 0);
824 if (!opt)
825 return POPT_ERROR_BADOPT;
826 shorty = 1;
827
828 origOptString++;
829 if (*origOptString != '\0')
830 con->os->nextCharArg = origOptString;
831 }
832 /*@=branchstate@*/
833
834 if (opt == NULL) return POPT_ERROR_BADOPT; /* XXX can't happen */
835 if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE) {
836 if (poptSaveInt((int *)opt->arg, opt->argInfo, 1L))
837 return POPT_ERROR_BADOPERATION;
838 } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL) {
839 if (opt->arg) {
840 if (poptSaveInt((int *)opt->arg, opt->argInfo, (long)opt->val))
841 return POPT_ERROR_BADOPERATION;
842 }
843 } else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
844 con->os->nextArg = (const char *)_free(con->os->nextArg);
845 /*@-usedef@*/ /* FIX: W2DO? */
846 if (longArg) {
847 /*@=usedef@*/
848 longArg = expandNextArg(con, longArg);
849 con->os->nextArg = longArg;
850 } else if (con->os->nextCharArg) {
851 longArg = expandNextArg(con, con->os->nextCharArg);
852 con->os->nextArg = longArg;
853 con->os->nextCharArg = NULL;
854 } else {
855 while (con->os->next == con->os->argc &&
856 con->os > con->optionStack) {
857 cleanOSE(con->os--);
858 }
859 if (con->os->next == con->os->argc) {
860 if (!(opt->argInfo & POPT_ARGFLAG_OPTIONAL))
861 /*@-compdef@*/ /* FIX: con->os->argv not defined */
862 return POPT_ERROR_NOARG;
863 /*@=compdef@*/
864 con->os->nextArg = NULL;
865 } else {
866
867 /*
868 * Make sure this isn't part of a short arg or the
869 * result of an alias expansion.
870 */
871 if (con->os == con->optionStack &&
872 (opt->argInfo & POPT_ARGFLAG_STRIP) &&
873 canstrip) {
874 poptStripArg(con, con->os->next);
875 }
876
877 if (con->os->argv != NULL) { /* XXX can't happen */
878 /* XXX watchout: subtle side-effects live here. */
879 longArg = con->os->argv[con->os->next++];
880 longArg = expandNextArg(con, longArg);
881 con->os->nextArg = longArg;
882 }
883 }
884 }
885 longArg = NULL;
886
887 if (opt->arg) {
888 switch (opt->argInfo & POPT_ARG_MASK) {
889 case POPT_ARG_STRING:
890 /* XXX memory leak, hard to plug */
891 *((const char **) opt->arg) = (con->os->nextArg)
892 ? xstrdup(con->os->nextArg) : NULL;
893 /*@switchbreak@*/ break;
894
895 case POPT_ARG_INT:
896 case POPT_ARG_LONG:
897 { long aLong = 0;
898 char *end;
899
900 if (con->os->nextArg) {
901 aLong = strtol(con->os->nextArg, &end, 0);
902 if (!(end && *end == '\0'))
903 return POPT_ERROR_BADNUMBER;
904 }
905
906 if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_LONG) {
907 if (aLong == LONG_MIN || aLong == LONG_MAX)
908 return POPT_ERROR_OVERFLOW;
909 if (poptSaveLong((long *)opt->arg, opt->argInfo, aLong))
910 return POPT_ERROR_BADOPERATION;
911 } else {
912 if (aLong > INT_MAX || aLong < INT_MIN)
913 return POPT_ERROR_OVERFLOW;
914 if (poptSaveInt((int *)opt->arg, opt->argInfo, aLong))
915 return POPT_ERROR_BADOPERATION;
916 }
917 } /*@switchbreak@*/ break;
918
919 case POPT_ARG_FLOAT:
920 case POPT_ARG_DOUBLE:
921 { double aDouble = 0.0;
922 char *end;
923
924 if (con->os->nextArg) {
925 /*@-mods@*/
926 int saveerrno = errno;
927 errno = 0;
928 aDouble = strtod(con->os->nextArg, &end);
929 if (errno == ERANGE)
930 return POPT_ERROR_OVERFLOW;
931 errno = saveerrno;
932 /*@=mods@*/
933 if (*end != '\0')
934 return POPT_ERROR_BADNUMBER;
935 }
936
937 if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_DOUBLE) {
938 *((double *) opt->arg) = aDouble;
939 } else {
940#ifndef _ABS
941#define _ABS(a) ((((a) - 0.0) < DBL_EPSILON) ? -(a) : (a))
942#endif
943 if ((_ABS(aDouble) - FLT_MAX) > DBL_EPSILON)
944 return POPT_ERROR_OVERFLOW;
945 if ((FLT_MIN - _ABS(aDouble)) > DBL_EPSILON)
946 return POPT_ERROR_OVERFLOW;
947 *((float *) opt->arg) = aDouble;
948 }
949 } /*@switchbreak@*/ break;
950 default:
951 fprintf(stdout,
952 POPT_("option type (%d) not implemented in popt\n"),
953 (opt->argInfo & POPT_ARG_MASK));
954 exit(EXIT_FAILURE);
955 /*@notreached@*/ /*@switchbreak@*/ break;
956 }
957 }
958 }
959
960 if (cb) {
961 /*@-internalglobs@*/
962 invokeCallbacksOPTION(con, con->options, opt, cbData, shorty);
963 /*@=internalglobs@*/
964 } else if (opt->val && ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL))
965 done = 1;
966
967 if ((con->finalArgvCount + 2) >= (con->finalArgvAlloced)) {
968 con->finalArgvAlloced += 10;
969 con->finalArgv = (const char **)realloc(con->finalArgv,
970 sizeof(*con->finalArgv) * con->finalArgvAlloced);
971 }
972
973 if (con->finalArgv != NULL)
974 { char *s = (char *)malloc(
975 (opt->longName ? strlen(opt->longName) : 0) + 3);
976 if (s != NULL) { /* XXX can't happen */
977 if (opt->longName)
978 sprintf(s, "%s%s",
979 ((opt->argInfo & POPT_ARGFLAG_ONEDASH) ? "-" : "--"),
980 opt->longName);
981 else
982 sprintf(s, "-%c", opt->shortName);
983 con->finalArgv[con->finalArgvCount++] = s;
984 } else
985 con->finalArgv[con->finalArgvCount++] = NULL;
986 }
987
988 if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE)
989 /*@-ifempty@*/ ; /*@=ifempty@*/
990 else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL)
991 /*@-ifempty@*/ ; /*@=ifempty@*/
992 else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
993 if (con->finalArgv != NULL && con->os->nextArg)
994 con->finalArgv[con->finalArgvCount++] =
995 /*@-nullpass@*/ /* LCL: con->os->nextArg != NULL */
996 xstrdup(con->os->nextArg);
997 /*@=nullpass@*/
998 }
999 }
1000
1001 return (opt ? opt->val : -1); /* XXX can't happen */
1002}
1003/*@=boundswrite@*/
1004
1005const char * poptGetOptArg(poptContext con)
1006{
1007 const char * ret = NULL;
1008 /*@-branchstate@*/
1009 if (con) {
1010 ret = con->os->nextArg;
1011 con->os->nextArg = NULL;
1012 }
1013 /*@=branchstate@*/
1014 return ret;
1015}
1016
1017const char * poptGetArg(poptContext con)
1018{
1019 const char * ret = NULL;
1020 if (con && con->leftovers != NULL && con->nextLeftover < con->numLeftovers)
1021 ret = con->leftovers[con->nextLeftover++];
1022 return ret;
1023}
1024
1025const char * poptPeekArg(poptContext con)
1026{
1027 const char * ret = NULL;
1028 if (con && con->leftovers != NULL && con->nextLeftover < con->numLeftovers)
1029 ret = con->leftovers[con->nextLeftover];
1030 return ret;
1031}
1032
1033/*@-boundswrite@*/
1034const char ** poptGetArgs(poptContext con)
1035{
1036 if (con == NULL ||
1037 con->leftovers == NULL || con->numLeftovers == con->nextLeftover)
1038 return NULL;
1039
1040 /* some apps like [like RPM ;-) ] need this NULL terminated */
1041 con->leftovers[con->numLeftovers] = NULL;
1042
1043 /*@-nullret -nullstate @*/ /* FIX: typedef double indirection. */
1044 return (con->leftovers + con->nextLeftover);
1045 /*@=nullret =nullstate @*/
1046}
1047/*@=boundswrite@*/
1048
1049poptContext poptFreeContext(poptContext con)
1050{
1051 poptItem item;
1052 int i;
1053
1054 if (con == NULL) return con;
1055 poptResetContext(con);
1056 con->os->argb = (pbm_set *)_free(con->os->argb);
1057
1058 if (con->aliases != NULL)
1059 for (i = 0; i < con->numAliases; i++) {
1060 item = con->aliases + i;
1061 /*@-modobserver -observertrans -dependenttrans@*/
1062 item->option.longName = (const char *)_free(item->option.longName);
1063 item->option.descrip = (const char *)_free(item->option.descrip);
1064 item->option.argDescrip = (const char *)_free(item->option.argDescrip);
1065 /*@=modobserver =observertrans =dependenttrans@*/
1066 item->argv = (const char **)_free(item->argv);
1067 }
1068 con->aliases = (poptItem)_free(con->aliases);
1069
1070 if (con->execs != NULL)
1071 for (i = 0; i < con->numExecs; i++) {
1072 item = con->execs + i;
1073 /*@-modobserver -observertrans -dependenttrans@*/
1074 item->option.longName = (const char *)_free(item->option.longName);
1075 item->option.descrip = (const char *)_free(item->option.descrip);
1076 item->option.argDescrip = (const char *)_free(item->option.argDescrip);
1077 /*@=modobserver =observertrans =dependenttrans@*/
1078 item->argv = (const char **)_free(item->argv);
1079 }
1080 con->execs = (poptItem)_free(con->execs);
1081
1082 con->leftovers = (const char **)_free(con->leftovers);
1083 con->finalArgv = (const char **)_free(con->finalArgv);
1084 con->appName = (const char *)_free(con->appName);
1085 con->otherHelp = (const char *)_free(con->otherHelp);
1086 con->execPath = (const char *)_free(con->execPath);
1087 con->arg_strip = (pbm_set *)PBM_FREE(con->arg_strip);
1088
1089 con = (poptContext)_free(con);
1090 return con;
1091}
1092
1093int poptAddAlias(poptContext con, struct poptAlias alias,
1094 /*@unused@*/ int flags)
1095{
1096 poptItem item = (poptItem)alloca(sizeof(*item));
1097 memset(item, 0, sizeof(*item));
1098 item->option.longName = alias.longName;
1099 item->option.shortName = alias.shortName;
1100 item->option.argInfo = POPT_ARGFLAG_DOC_HIDDEN;
1101 item->option.arg = 0;
1102 item->option.val = 0;
1103 item->option.descrip = NULL;
1104 item->option.argDescrip = NULL;
1105 item->argc = alias.argc;
1106 item->argv = alias.argv;
1107 return poptAddItem(con, item, 0);
1108}
1109
1110/*@-boundswrite@*/
1111/*@-mustmod@*/ /* LCL: con not modified? */
1112int poptAddItem(poptContext con, poptItem newItem, int flags)
1113{
1114 poptItem * items, item;
1115 int * nitems;
1116
1117 switch (flags) {
1118 case 1:
1119 items = &con->execs;
1120 nitems = &con->numExecs;
1121 break;
1122 case 0:
1123 items = &con->aliases;
1124 nitems = &con->numAliases;
1125 break;
1126 default:
1127 return 1;
1128 /*@notreached@*/ break;
1129 }
1130
1131 *items = (poptItem)realloc((*items), ((*nitems) + 1) * sizeof(**items));
1132 if ((*items) == NULL)
1133 return 1;
1134
1135 item = (*items) + (*nitems);
1136
1137 item->option.longName =
1138 (newItem->option.longName ? xstrdup(newItem->option.longName) : NULL);
1139 item->option.shortName = newItem->option.shortName;
1140 item->option.argInfo = newItem->option.argInfo;
1141 item->option.arg = newItem->option.arg;
1142 item->option.val = newItem->option.val;
1143 item->option.descrip =
1144 (newItem->option.descrip ? xstrdup(newItem->option.descrip) : NULL);
1145 item->option.argDescrip =
1146 (newItem->option.argDescrip ? xstrdup(newItem->option.argDescrip) : NULL);
1147 item->argc = newItem->argc;
1148 item->argv = newItem->argv;
1149
1150 (*nitems)++;
1151
1152 return 0;
1153}
1154/*@=mustmod@*/
1155/*@=boundswrite@*/
1156
1157const char * poptBadOption(poptContext con, int flags)
1158{
1159 struct optionStackEntry * os = NULL;
1160
1161 if (con != NULL)
1162 os = (flags & POPT_BADOPTION_NOALIAS) ? con->optionStack : con->os;
1163
1164 /*@-nullderef@*/ /* LCL: os->argv != NULL */
1165 return (os && os->argv ? os->argv[os->next - 1] : NULL);
1166 /*@=nullderef@*/
1167}
1168
1169const char *poptStrerror(const int error)
1170{
1171 switch (error) {
1172 case POPT_ERROR_NOARG:
1173 return POPT_("missing argument");
1174 case POPT_ERROR_BADOPT:
1175 return POPT_("unknown option");
1176 case POPT_ERROR_BADOPERATION:
1177 return POPT_("mutually exclusive logical operations requested");
1178 case POPT_ERROR_NULLARG:
1179 return POPT_("opt->arg should not be NULL");
1180 case POPT_ERROR_OPTSTOODEEP:
1181 return POPT_("aliases nested too deeply");
1182 case POPT_ERROR_BADQUOTE:
1183 return POPT_("error in parameter quoting");
1184 case POPT_ERROR_BADNUMBER:
1185 return POPT_("invalid numeric value");
1186 case POPT_ERROR_OVERFLOW:
1187 return POPT_("number too large or too small");
1188 case POPT_ERROR_MALLOC:
1189 return POPT_("memory allocation failed");
1190 case POPT_ERROR_ERRNO:
1191 return strerror(errno);
1192 default:
1193 return POPT_("unknown error");
1194 }
1195}
1196
1197int poptStuffArgs(poptContext con, const char ** argv)
1198{
1199 int argc;
1200 int rc;
1201
1202 if ((con->os - con->optionStack) == POPT_OPTION_DEPTH)
1203 return POPT_ERROR_OPTSTOODEEP;
1204
1205 for (argc = 0; argv[argc]; argc++)
1206 {};
1207
1208 con->os++;
1209 con->os->next = 0;
1210 con->os->nextArg = NULL;
1211 con->os->nextCharArg = NULL;
1212 con->os->currAlias = NULL;
1213 rc = poptDupArgv(argc, argv, &con->os->argc, &con->os->argv);
1214 con->os->argb = NULL;
1215 con->os->stuffed = 1;
1216
1217 return rc;
1218}
1219
1220const char * poptGetInvocationName(poptContext con)
1221{
1222 return (con->os->argv ? con->os->argv[0] : "");
1223}
1224
1225/*@-boundswrite@*/
1226int poptStrippedArgv(poptContext con, int argc, char ** argv)
1227{
1228 int numargs = argc;
1229 int j = 1;
1230 int i;
1231
1232 /*@-sizeoftype@*/
1233 if (con->arg_strip)
1234 for (i = 1; i < argc; i++) {
1235 if (PBM_ISSET(i, con->arg_strip))
1236 numargs--;
1237 }
1238
1239 for (i = 1; i < argc; i++) {
1240 if (con->arg_strip && PBM_ISSET(i, con->arg_strip))
1241 continue;
1242 argv[j] = (j < numargs) ? argv[i] : NULL;
1243 j++;
1244 }
1245 /*@=sizeoftype@*/
1246
1247 return numargs;
1248}
1249/*@=boundswrite@*/
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