File: popthelp.c

package info (click to toggle)
pilot-link 0.12.5-dfsg-2
  • links: PTS
  • area: main
  • in suites: buster, stretch
  • size: 6,868 kB
  • ctags: 5,811
  • sloc: ansic: 53,153; sh: 10,459; java: 2,584; perl: 2,247; python: 1,044; makefile: 991; yacc: 662; cpp: 551; xml: 39
file content (742 lines) | stat: -rw-r--r-- 19,693 bytes parent folder | download | duplicates (12)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */

/*@-type@*/
/** \ingroup popt
 * \file popt/popthelp.c
 */

/* (C) 1998-2002 Red Hat, Inc. -- Licensing details are in the COPYING
   file accompanying popt source distributions, available from 
   ftp://ftp.rpm.org/pub/rpm/dist. */

#include "system.h"
#include "poptint.h"

/**
 * Display arguments.
 * @param con		context
 * @param foo		(unused)
 * @param key		option(s)
 * @param arg		(unused)
 * @param data		(unused)
 */
static void displayArgs(poptContext con,
		/*@unused@*/ enum poptCallbackReason foo,
		struct poptOption * key, 
		/*@unused@*/ const char * arg, /*@unused@*/ void * data)
	/*@globals fileSystem@*/
	/*@modifies fileSystem@*/
{
    if (key->shortName == '?')
	poptPrintHelp(con, stdout, 0);
    else
	poptPrintUsage(con, stdout, 0);
    exit(0);
}

#ifdef	NOTYET
/*@unchecked@*/
static int show_option_defaults = 0;
#endif

/**
 * Empty table marker to enable displaying popt alias/exec options.
 */
/*@observer@*/ /*@unchecked@*/
struct poptOption poptAliasOptions[] = {
    POPT_TABLEEND
};

/**
 * Auto help table options.
 */
/*@-castfcnptr@*/
/*@observer@*/ /*@unchecked@*/
struct poptOption poptHelpOptions[] = {
  { NULL, '\0', POPT_ARG_CALLBACK, (void *)&displayArgs, '\0', NULL, NULL },
  { "help", '?', 0, NULL, '?', N_("Show this help message"), NULL },
  { "usage", '\0', 0, NULL, 'u', N_("Display brief usage message"), NULL },
#ifdef	NOTYET
  { "defaults", '\0', POPT_ARG_NONE, &show_option_defaults, 0,
	N_("Display option defaults in message"), NULL },
#endif
    POPT_TABLEEND
} ;
/*@=castfcnptr@*/

/**
 * @param table		option(s)
 */
/*@observer@*/ /*@null@*/ static const char *const
getTableTranslationDomain(/*@null@*/ const struct poptOption *table)
	/*@*/
{
    const struct poptOption *opt;

    if (table != NULL)
    for (opt = table; opt->longName || opt->shortName || opt->arg; opt++) {
	if (opt->argInfo == POPT_ARG_INTL_DOMAIN)
	    return opt->arg;
    }
    return NULL;
}

/**
 * @param opt		option(s)
 * @param translation_domain	translation domain
 */
/*@observer@*/ /*@null@*/ static const char *const
getArgDescrip(const struct poptOption * opt,
		/*@-paramuse@*/ /* FIX: i18n macros disabled with lclint */
		/*@null@*/ const char * translation_domain)
		/*@=paramuse@*/
	/*@*/
{
    if (!(opt->argInfo & POPT_ARG_MASK)) return NULL;

    if (opt == (poptHelpOptions + 1) || opt == (poptHelpOptions + 2))
	if (opt->argDescrip) return POPT_(opt->argDescrip);

    if (opt->argDescrip) return D_(translation_domain, opt->argDescrip);

    switch (opt->argInfo & POPT_ARG_MASK) {
    case POPT_ARG_NONE:		return POPT_("NONE");
#ifdef	DYING
    case POPT_ARG_VAL:		return POPT_("VAL");
#else
    case POPT_ARG_VAL:		return NULL;
#endif
    case POPT_ARG_INT:		return POPT_("INT");
    case POPT_ARG_LONG:		return POPT_("LONG");
    case POPT_ARG_STRING:	return POPT_("STRING");
    case POPT_ARG_FLOAT:	return POPT_("FLOAT");
    case POPT_ARG_DOUBLE:	return POPT_("DOUBLE");
    default:			return POPT_("ARG");
    }
}

/**
 * Display default value for an option.
 * @param lineLength
 * @param opt		option(s)
 * @param translation_domain	translation domain
 * @return
 */
static /*@only@*/ /*@null@*/ char *
singleOptionDefaultValue(int lineLength,
		const struct poptOption * opt,
		/*@-paramuse@*/ /* FIX: i18n macros disabled with lclint */
		/*@null@*/ const char * translation_domain)
		/*@=paramuse@*/
	/*@*/
{
    const char * defstr = D_(translation_domain, "default");
    char * le = malloc(4*lineLength + 1);
    char * l = le;

    if (le == NULL) return NULL;	/* XXX can't happen */
/*@-boundswrite@*/
    *le = '\0';
    *le++ = '(';
    strcpy(le, defstr);	le += strlen(le);
    *le++ = ':';
    *le++ = ' ';
    if (opt->arg)	/* XXX programmer error */
    switch (opt->argInfo & POPT_ARG_MASK) {
    case POPT_ARG_VAL:
    case POPT_ARG_INT:
    {	long aLong = *((int *)opt->arg);
	le += sprintf(le, "%ld", aLong);
    }	break;
    case POPT_ARG_LONG:
    {	long aLong = *((long *)opt->arg);
	le += sprintf(le, "%ld", aLong);
    }	break;
    case POPT_ARG_FLOAT:
    {	double aDouble = *((float *)opt->arg);
	le += sprintf(le, "%g", aDouble);
    }	break;
    case POPT_ARG_DOUBLE:
    {	double aDouble = *((double *)opt->arg);
	le += sprintf(le, "%g", aDouble);
    }	break;
    case POPT_ARG_STRING:
    {	const char * s = *(const char **)opt->arg;
	if (s == NULL) {
	    strcpy(le, "null");	le += strlen(le);
	} else {
	    size_t slen = 4*lineLength - (le - l) - sizeof("\"...\")");
	    *le++ = '"';
	    strncpy(le, s, slen); le[slen] = '\0'; le += strlen(le);	
	    if (slen < strlen(s)) {
		strcpy(le, "...");	le += strlen(le);
	    }
	    *le++ = '"';
	}
    }	break;
    case POPT_ARG_NONE:
    default:
	l = _free(l);
	return NULL;
	/*@notreached@*/ break;
    }
    *le++ = ')';
    *le = '\0';
/*@=boundswrite@*/

    return l;
}

/**
 * Display help text for an option.
 * @param fp		output file handle
 * @param maxLeftCol
 * @param opt		option(s)
 * @param translation_domain	translation domain
 */
static void singleOptionHelp(FILE * fp, int maxLeftCol, 
		const struct poptOption * opt,
		/*@null@*/ const char * translation_domain)
	/*@globals fileSystem @*/
	/*@modifies *fp, fileSystem @*/
{
    int indentLength = maxLeftCol + 5;
    int lineLength = 79 - indentLength;
    const char * help = D_(translation_domain, opt->descrip);
    const char * argDescrip = getArgDescrip(opt, translation_domain);
    int helpLength;
    char * defs = NULL;
    char * left;
    int nb = maxLeftCol + 1;

    /* Make sure there's more than enough room in target buffer. */
    if (opt->longName)	nb += strlen(opt->longName);
    if (argDescrip)	nb += strlen(argDescrip);

/*@-boundswrite@*/
    left = malloc(nb);
    if (left == NULL) return;	/* XXX can't happen */
    left[0] = '\0';
    left[maxLeftCol] = '\0';

    if (opt->longName && opt->shortName)
	sprintf(left, "-%c, %s%s", opt->shortName,
		((opt->argInfo & POPT_ARGFLAG_ONEDASH) ? "-" : "--"),
		opt->longName);
    else if (opt->shortName != '\0') 
	sprintf(left, "-%c", opt->shortName);
    else if (opt->longName)
	sprintf(left, "%s%s",
		((opt->argInfo & POPT_ARGFLAG_ONEDASH) ? "-" : "--"),
		opt->longName);
    if (!*left) goto out;

    if (argDescrip) {
	char * le = left + strlen(left);

	if (opt->argInfo & POPT_ARGFLAG_OPTIONAL)
	    *le++ = '[';

	/* Choose type of output */
	/*@-branchstate@*/
	if (opt->argInfo & POPT_ARGFLAG_SHOW_DEFAULT) {
	    defs = singleOptionDefaultValue(lineLength, opt, translation_domain);
	    if (defs) {
		char * t = malloc((help ? strlen(help) : 0) +
				strlen(defs) + sizeof(" "));
		if (t) {
		    char * te = t;
		    *te = '\0';
		    if (help) {
			strcpy(te, help);	te += strlen(te);
		    }
		    *te++ = ' ';
		    strcpy(te, defs);
		    defs = _free(defs);
		}
		defs = t;
	    }
	}
	/*@=branchstate@*/

	if (opt->argDescrip == NULL) {
	    switch (opt->argInfo & POPT_ARG_MASK) {
	    case POPT_ARG_NONE:
		break;
	    case POPT_ARG_VAL:
#ifdef	NOTNOW	/* XXX pug ugly nerdy output */
	    {	long aLong = opt->val;
		int ops = (opt->argInfo & POPT_ARGFLAG_LOGICALOPS);
		int negate = (opt->argInfo & POPT_ARGFLAG_NOT);

		/* Don't bother displaying typical values */
		if (!ops && (aLong == 0L || aLong == 1L || aLong == -1L))
		    break;
		*le++ = '[';
		switch (ops) {
		case POPT_ARGFLAG_OR:
		    *le++ = '|';
		    /*@innerbreak@*/ break;
		case POPT_ARGFLAG_AND:
		    *le++ = '&';
		    /*@innerbreak@*/ break;
		case POPT_ARGFLAG_XOR:
		    *le++ = '^';
		    /*@innerbreak@*/ break;
		default:
		    /*@innerbreak@*/ break;
		}
		*le++ = '=';
		if (negate) *le++ = '~';
		/*@-formatconst@*/
		le += sprintf(le, (ops ? "0x%lx" : "%ld"), aLong);
		/*@=formatconst@*/
		*le++ = ']';
	    }
#endif
		break;
	    case POPT_ARG_INT:
	    case POPT_ARG_LONG:
	    case POPT_ARG_FLOAT:
	    case POPT_ARG_DOUBLE:
	    case POPT_ARG_STRING:
		*le++ = '=';
		strcpy(le, argDescrip);		le += strlen(le);
		break;
	    default:
		break;
	    }
	} else {
	    *le++ = '=';
	    strcpy(le, argDescrip);		le += strlen(le);
	}
	if (opt->argInfo & POPT_ARGFLAG_OPTIONAL)
	    *le++ = ']';
	*le = '\0';
    }
/*@=boundswrite@*/

    if (help)
	fprintf(fp,"  %-*s   ", maxLeftCol, left);
    else {
	fprintf(fp,"  %s\n", left); 
	goto out;
    }

    left = _free(left);
    if (defs) {
	help = defs; defs = NULL;
    }

    helpLength = strlen(help);
/*@-boundsread@*/
    while (helpLength > lineLength) {
	const char * ch;
	char format[16];

	ch = help + lineLength - 1;
	while (ch > help && !isspace(*ch)) ch--;
	if (ch == help) break;		/* give up */
	while (ch > (help + 1) && isspace(*ch)) ch--;
	ch++;

	sprintf(format, "%%.%ds\n%%%ds", (int) (ch - help), indentLength);
	/*@-formatconst@*/
	fprintf(fp, format, help, " ");
	/*@=formatconst@*/
	help = ch;
	while (isspace(*help) && *help) help++;
	helpLength = strlen(help);
    }
/*@=boundsread@*/

    if (helpLength) fprintf(fp, "%s\n", help);

out:
    /*@-dependenttrans@*/
    defs = _free(defs);
    /*@=dependenttrans@*/
    left = _free(left);
}

/**
 * @param opt		option(s)
 * @param translation_domain	translation domain
 */
static int maxArgWidth(const struct poptOption * opt,
		       /*@null@*/ const char * translation_domain)
	/*@*/
{
    int max = 0;
    int len = 0;
    const char * s;
    
    if (opt != NULL)
    while (opt->longName || opt->shortName || opt->arg) {
	if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
	    if (opt->arg)	/* XXX program error */
	    len = maxArgWidth(opt->arg, translation_domain);
	    if (len > max) max = len;
	} else if (!(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN)) {
	    len = sizeof("  ")-1;
	    if (opt->shortName != '\0') len += sizeof("-X")-1;
	    if (opt->shortName != '\0' && opt->longName) len += sizeof(", ")-1;
	    if (opt->longName) {
		len += ((opt->argInfo & POPT_ARGFLAG_ONEDASH)
			? sizeof("-")-1 : sizeof("--")-1);
		len += strlen(opt->longName);
	    }

	    s = getArgDescrip(opt, translation_domain);
	    if (s)
		len += sizeof("=")-1 + strlen(s);
	    if (opt->argInfo & POPT_ARGFLAG_OPTIONAL) len += sizeof("[]")-1;
	    if (len > max) max = len;
	}

	opt++;
    }
    
    return max;
}

/**
 * Display popt alias and exec help.
 * @param fp		output file handle
 * @param items		alias/exec array
 * @param nitems	no. of alias/exec entries
 * @param left
 * @param translation_domain	translation domain
 */
static void itemHelp(FILE * fp,
		/*@null@*/ poptItem items, int nitems, int left,
		/*@null@*/ const char * translation_domain)
	/*@globals fileSystem @*/
	/*@modifies *fp, fileSystem @*/
{
    poptItem item;
    int i;

    if (items != NULL)
    for (i = 0, item = items; i < nitems; i++, item++) {
	const struct poptOption * opt;
	opt = &item->option;
	if ((opt->longName || opt->shortName) && 
	    !(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN))
	    singleOptionHelp(fp, left, opt, translation_domain);
    }
}

/**
 * Display help text for a table of options.
 * @param con		context
 * @param fp		output file handle
 * @param table		option(s)
 * @param left
 * @param translation_domain	translation domain
 */
static void singleTableHelp(poptContext con, FILE * fp,
		/*@null@*/ const struct poptOption * table, int left,
		/*@null@*/ const char * translation_domain)
	/*@globals fileSystem @*/
	/*@modifies *fp, fileSystem @*/
{
    const struct poptOption * opt;
    const char *sub_transdom;

    if (table == poptAliasOptions) {
	itemHelp(fp, con->aliases, con->numAliases, left, NULL);
	itemHelp(fp, con->execs, con->numExecs, left, NULL);
	return;
    }

    if (table != NULL)
    for (opt = table; (opt->longName || opt->shortName || opt->arg); opt++) {
	if ((opt->longName || opt->shortName) && 
	    !(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN))
	    singleOptionHelp(fp, left, opt, translation_domain);
    }

    if (table != NULL)
    for (opt = table; (opt->longName || opt->shortName || opt->arg); opt++) {
	if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_INCLUDE_TABLE)
	    continue;
	sub_transdom = getTableTranslationDomain(opt->arg);
	if (sub_transdom == NULL)
	    sub_transdom = translation_domain;
	    
	if (opt->descrip)
	    fprintf(fp, "\n%s\n", D_(sub_transdom, opt->descrip));

	singleTableHelp(con, fp, opt->arg, left, sub_transdom);
    }
}

/**
 * @param con		context
 * @param fp		output file handle
 */
static int showHelpIntro(poptContext con, FILE * fp)
	/*@globals fileSystem @*/
	/*@modifies *fp, fileSystem @*/
{
    int len = 6;
    const char * fn;

    fprintf(fp, POPT_("Usage:"));
    if (!(con->flags & POPT_CONTEXT_KEEP_FIRST)) {
/*@-boundsread@*/
	/*@-nullderef@*/	/* LCL: wazzup? */
	fn = con->optionStack->argv[0];
	/*@=nullderef@*/
/*@=boundsread@*/
	if (fn == NULL) return len;
	if (strchr(fn, '/')) fn = strrchr(fn, '/') + 1;
	fprintf(fp, " %s", fn);
	len += strlen(fn) + 1;
    }

    return len;
}

void poptPrintHelp(poptContext con, FILE * fp, /*@unused@*/ int flags)
{
    int leftColWidth;

    (void) showHelpIntro(con, fp);
    if (con->otherHelp)
	fprintf(fp, " %s\n", con->otherHelp);
    else
	fprintf(fp, " %s\n", POPT_("[OPTION...]"));

    leftColWidth = maxArgWidth(con->options, NULL);
    singleTableHelp(con, fp, con->options, leftColWidth, NULL);
}

/**
 * @param fp		output file handle
 * @param cursor
 * @param opt		option(s)
 * @param translation_domain	translation domain
 */
static int singleOptionUsage(FILE * fp, int cursor, 
		const struct poptOption * opt,
		/*@null@*/ const char *translation_domain)
	/*@globals fileSystem @*/
	/*@modifies *fp, fileSystem @*/
{
    int len = 4;
    char shortStr[2] = { '\0', '\0' };
    const char * item = shortStr;
    const char * argDescrip = getArgDescrip(opt, translation_domain);

    if (opt->shortName != '\0' && opt->longName != NULL) {
	len += 2;
	if (!(opt->argInfo & POPT_ARGFLAG_ONEDASH)) len++;
	len += strlen(opt->longName);
    } else if (opt->shortName != '\0') {
	len++;
	shortStr[0] = opt->shortName;
	shortStr[1] = '\0';
    } else if (opt->longName) {
	len += strlen(opt->longName);
	if (!(opt->argInfo & POPT_ARGFLAG_ONEDASH)) len++;
	item = opt->longName;
    }

    if (len == 4) return cursor;

    if (argDescrip) 
	len += strlen(argDescrip) + 1;

    if ((cursor + len) > 79) {
	fprintf(fp, "\n       ");
	cursor = 7;
    } 

    if (opt->longName && opt->shortName) {
	fprintf(fp, " [-%c|-%s%s%s%s]",
	    opt->shortName, ((opt->argInfo & POPT_ARGFLAG_ONEDASH) ? "" : "-"),
	    opt->longName,
	    (argDescrip ? " " : ""),
	    (argDescrip ? argDescrip : ""));
    } else {
	fprintf(fp, " [-%s%s%s%s]",
	    ((opt->shortName || (opt->argInfo & POPT_ARGFLAG_ONEDASH)) ? "" : "-"),
	    item,
	    (argDescrip ? (opt->shortName != '\0' ? " " : "=") : ""),
	    (argDescrip ? argDescrip : ""));
    }

    return cursor + len + 1;
}

/**
 * Display popt alias and exec usage.
 * @param fp		output file handle
 * @param cursor
 * @param item		alias/exec array
 * @param nitems	no. of ara/exec entries
 * @param translation_domain	translation domain
 */
static int itemUsage(FILE * fp, int cursor, poptItem item, int nitems,
		/*@null@*/ const char * translation_domain)
	/*@globals fileSystem @*/
	/*@modifies *fp, fileSystem @*/
{
    int i;

    /*@-branchstate@*/		/* FIX: W2DO? */
    if (item != NULL)
    for (i = 0; i < nitems; i++, item++) {
	const struct poptOption * opt;
	opt = &item->option;
        if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INTL_DOMAIN) {
	    translation_domain = (const char *)opt->arg;
	} else if ((opt->longName || opt->shortName) &&
		 !(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN)) {
	    cursor = singleOptionUsage(fp, cursor, opt, translation_domain);
	}
    }
    /*@=branchstate@*/

    return cursor;
}

/**
 * Keep track of option tables already processed.
 */
typedef struct poptDone_s {
    int nopts;
    int maxopts;
    const void ** opts;
} * poptDone;

/**
 * Display usage text for a table of options.
 * @param con		context
 * @param fp		output file handle
 * @param cursor
 * @param opt		option(s)
 * @param translation_domain	translation domain
 * @param done		tables already processed
 * @return
 */
static int singleTableUsage(poptContext con, FILE * fp, int cursor,
		/*@null@*/ const struct poptOption * opt,
		/*@null@*/ const char * translation_domain,
		/*@null@*/ poptDone done)
	/*@globals fileSystem @*/
	/*@modifies *fp, done, fileSystem @*/
{
    /*@-branchstate@*/		/* FIX: W2DO? */
    if (opt != NULL)
    for (; (opt->longName || opt->shortName || opt->arg) ; opt++) {
        if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INTL_DOMAIN) {
	    translation_domain = (const char *)opt->arg;
	} else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
	    if (done) {
		int i = 0;
		for (i = 0; i < done->nopts; i++) {
/*@-boundsread@*/
		    const void * that = done->opts[i];
/*@=boundsread@*/
		    if (that == NULL || that != opt->arg)
			/*@innercontinue@*/ continue;
		    /*@innerbreak@*/ break;
		}
		/* Skip if this table has already been processed. */
		if (opt->arg == NULL || i < done->nopts)
		    continue;
/*@-boundswrite@*/
		if (done->nopts < done->maxopts)
		    done->opts[done->nopts++] = (const void *) opt->arg;
/*@=boundswrite@*/
	    }
	    cursor = singleTableUsage(con, fp, cursor, opt->arg,
			translation_domain, done);
	} else if ((opt->longName || opt->shortName) &&
		 !(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN)) {
	    cursor = singleOptionUsage(fp, cursor, opt, translation_domain);
	}
    }
    /*@=branchstate@*/

    return cursor;
}

/**
 * Return concatenated short options for display.
 * @todo Sub-tables should be recursed.
 * @param opt		option(s)
 * @param fp		output file handle
 * @retval str		concatenation of short options
 * @return		length of display string
 */
static int showShortOptions(const struct poptOption * opt, FILE * fp,
		/*@null@*/ char * str)
	/*@globals fileSystem @*/
	/*@modifies *str, *fp, fileSystem @*/
{
    char * s = alloca(300);	/* larger then the ascii set */

    s[0] = '\0';
    /*@-branchstate@*/		/* FIX: W2DO? */
    if (str == NULL) {
	memset(s, 0, sizeof(s));
	str = s;
    }
    /*@=branchstate@*/

/*@-boundswrite@*/
    if (opt != NULL)
    for (; (opt->longName || opt->shortName || opt->arg); opt++) {
	if (opt->shortName && !(opt->argInfo & POPT_ARG_MASK))
	    str[strlen(str)] = opt->shortName;
	else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE)
	    if (opt->arg)	/* XXX program error */
		(void) showShortOptions(opt->arg, fp, str);
    } 
/*@=boundswrite@*/

    if (s != str || *s != '\0')
	return 0;

    fprintf(fp, " [-%s]", s);
    return strlen(s) + 4;
}

void poptPrintUsage(poptContext con, FILE * fp, /*@unused@*/ int flags)
{
    poptDone done = memset(alloca(sizeof(*done)), 0, sizeof(*done));
    int cursor;

    done->nopts = 0;
    done->maxopts = 64;
    cursor = done->maxopts * sizeof(*done->opts);
/*@-boundswrite@*/
    done->opts = memset(alloca(cursor), 0, cursor);
    done->opts[done->nopts++] = (const void *) con->options;
/*@=boundswrite@*/

    cursor = showHelpIntro(con, fp);
    cursor += showShortOptions(con->options, fp, NULL);
    cursor = singleTableUsage(con, fp, cursor, con->options, NULL, done);
    cursor = itemUsage(fp, cursor, con->aliases, con->numAliases, NULL);
    cursor = itemUsage(fp, cursor, con->execs, con->numExecs, NULL);

    if (con->otherHelp) {
	cursor += strlen(con->otherHelp) + 1;
	if (cursor > 79) fprintf(fp, "\n       ");
	fprintf(fp, " %s", con->otherHelp);
    }

    fprintf(fp, "\n");
}

void poptSetOtherOptionHelp(poptContext con, const char * text)
{
    con->otherHelp = _free(con->otherHelp);
    con->otherHelp = xstrdup(text);
}
/*@=type@*/