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@*/
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