opt.c@ 92376

Last change on this file since 92376 was 91772, checked in by vboxsync, 3 years ago
openssl-1.1.1l: Applied and adjusted our OpenSSL changes to 1.1.1l. bugref:10126
File size: 23.6 KB

Line
1	/*
2	* Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
3	*
4	* Licensed under the OpenSSL license (the "License"). You may not use
5	* this file except in compliance with the License. You can obtain a copy
6	* in the file LICENSE in the source distribution or at
7	* https://www.openssl.org/source/license.html
8	*/
9	#include "apps.h"
10	#include <string.h>
11	#if !defined(OPENSSL_SYS_MSDOS)
12	# include OPENSSL_UNISTD
13	#endif
14
15	#include <stdlib.h>
16	#include <errno.h>
17	#include <ctype.h>
18	#include <limits.h>
19	#include <openssl/bio.h>
20	#include <openssl/x509v3.h>
21
22	#define MAX_OPT_HELP_WIDTH 30
23	const char OPT_HELP_STR[] = "--";
24	const char OPT_MORE_STR[] = "---";
25
26	/* Our state */
27	static char **argv;
28	static int argc;
29	static int opt_index;
30	static char *arg;
31	static char *flag;
32	static char *dunno;
33	static const OPTIONS *unknown;
34	static const OPTIONS *opts;
35	static char prog[40];
36
37	/*
38	* Return the simple name of the program; removing various platform gunk.
39	*/
40	#if defined(OPENSSL_SYS_WIN32)
41	char opt_progname(const char argv0)
42	{
43	size_t i, n;
44	const char *p;
45	char *q;
46
47	/* find the last '/', '\' or ':' */
48	for (p = argv0 + strlen(argv0); --p > argv0;)
49	if (p == '/' \|\| p == '\\' \|\| *p == ':') {
50	p++;
51	break;
52	}
53
54	/* Strip off trailing nonsense. */
55	n = strlen(p);
56	if (n > 4 &&
57	(strcmp(&p[n - 4], ".exe") == 0 \|\| strcmp(&p[n - 4], ".EXE") == 0))
58	n -= 4;
59
60	/* Copy over the name, in lowercase. */
61	if (n > sizeof(prog) - 1)
62	n = sizeof(prog) - 1;
63	for (q = prog, i = 0; i < n; i++, p++)
64	q++ = tolower((unsigned char)p);
65	*q = '\0';
66	return prog;
67	}
68
69	#elif defined(OPENSSL_SYS_VMS)
70
71	char opt_progname(const char argv0)
72	{
73	const char p, q;
74
75	/* Find last special character sys:[foo.bar]openssl */
76	for (p = argv0 + strlen(argv0); --p > argv0;)
77	if (p == ':' \|\| p == ']' \|\| *p == '>') {
78	p++;
79	break;
80	}
81
82	q = strrchr(p, '.');
83	strncpy(prog, p, sizeof(prog) - 1);
84	prog[sizeof(prog) - 1] = '\0';
85	if (q != NULL && q - p < sizeof(prog))
86	prog[q - p] = '\0';
87	return prog;
88	}
89
90	#else
91
92	char opt_progname(const char argv0)
93	{
94	const char *p;
95
96	/* Could use strchr, but this is like the ones above. */
97	for (p = argv0 + strlen(argv0); --p > argv0;)
98	if (*p == '/') {
99	p++;
100	break;
101	}
102	strncpy(prog, p, sizeof(prog) - 1);
103	prog[sizeof(prog) - 1] = '\0';
104	return prog;
105	}
106	#endif
107
108	char *opt_getprog(void)
109	{
110	return prog;
111	}
112
113	/* Set up the arg parsing. */
114	char opt_init(int ac, char av, const OPTIONS o)
115	{
116	/* Store state. */
117	argc = ac;
118	argv = av;
119	opt_index = 1;
120	opts = o;
121	opt_progname(av[0]);
122	unknown = NULL;
123
124	for (; o->name; ++o) {
125	#ifndef NDEBUG
126	const OPTIONS *next;
127	int duplicated, i;
128	#endif
129
130	if (o->name == OPT_HELP_STR \|\| o->name == OPT_MORE_STR)
131	continue;
132	#ifndef NDEBUG
133	i = o->valtype;
134
135	/* Make sure options are legit. */
136	assert(o->name[0] != '-');
137	assert(o->retval > 0);
138	switch (i) {
139	case 0: case '-': case '/': case '<': case '>': case 'E': case 'F':
140	case 'M': case 'U': case 'f': case 'l': case 'n': case 'p': case 's':
141	case 'u': case 'c':
142	break;
143	default:
144	assert(0);
145	}
146
147	/* Make sure there are no duplicates. */
148	for (next = o + 1; next->name; ++next) {
149	/*
150	* Some compilers inline strcmp and the assert string is too long.
151	*/
152	duplicated = strcmp(o->name, next->name) == 0;
153	assert(!duplicated);
154	}
155	#endif
156	if (o->name[0] == '\0') {
157	assert(unknown == NULL);
158	unknown = o;
159	assert(unknown->valtype == 0 \|\| unknown->valtype == '-');
160	}
161	}
162	return prog;
163	}
164
165	static OPT_PAIR formats[] = {
166	{"PEM/DER", OPT_FMT_PEMDER},
167	{"pkcs12", OPT_FMT_PKCS12},
168	{"smime", OPT_FMT_SMIME},
169	{"engine", OPT_FMT_ENGINE},
170	{"msblob", OPT_FMT_MSBLOB},
171	{"nss", OPT_FMT_NSS},
172	{"text", OPT_FMT_TEXT},
173	{"http", OPT_FMT_HTTP},
174	{"pvk", OPT_FMT_PVK},
175	{NULL}
176	};
177
178	/* Print an error message about a failed format parse. */
179	int opt_format_error(const char *s, unsigned long flags)
180	{
181	OPT_PAIR *ap;
182
183	if (flags == OPT_FMT_PEMDER) {
184	BIO_printf(bio_err, "%s: Bad format \"%s\"; must be pem or der\n",
185	prog, s);
186	} else {
187	BIO_printf(bio_err, "%s: Bad format \"%s\"; must be one of:\n",
188	prog, s);
189	for (ap = formats; ap->name; ap++)
190	if (flags & ap->retval)
191	BIO_printf(bio_err, " %s\n", ap->name);
192	}
193	return 0;
194	}
195
196	/* Parse a format string, put it into result; return 0 on failure, else 1. /
197	int opt_format(const char s, unsigned long flags, int result)
198	{
199	switch (*s) {
200	default:
201	return 0;
202	case 'D':
203	case 'd':
204	if ((flags & OPT_FMT_PEMDER) == 0)
205	return opt_format_error(s, flags);
206	*result = FORMAT_ASN1;
207	break;
208	case 'T':
209	case 't':
210	if ((flags & OPT_FMT_TEXT) == 0)
211	return opt_format_error(s, flags);
212	*result = FORMAT_TEXT;
213	break;
214	case 'N':
215	case 'n':
216	if ((flags & OPT_FMT_NSS) == 0)
217	return opt_format_error(s, flags);
218	if (strcmp(s, "NSS") != 0 && strcmp(s, "nss") != 0)
219	return opt_format_error(s, flags);
220	*result = FORMAT_NSS;
221	break;
222	case 'S':
223	case 's':
224	if ((flags & OPT_FMT_SMIME) == 0)
225	return opt_format_error(s, flags);
226	*result = FORMAT_SMIME;
227	break;
228	case 'M':
229	case 'm':
230	if ((flags & OPT_FMT_MSBLOB) == 0)
231	return opt_format_error(s, flags);
232	*result = FORMAT_MSBLOB;
233	break;
234	case 'E':
235	case 'e':
236	if ((flags & OPT_FMT_ENGINE) == 0)
237	return opt_format_error(s, flags);
238	*result = FORMAT_ENGINE;
239	break;
240	case 'H':
241	case 'h':
242	if ((flags & OPT_FMT_HTTP) == 0)
243	return opt_format_error(s, flags);
244	*result = FORMAT_HTTP;
245	break;
246	case '1':
247	if ((flags & OPT_FMT_PKCS12) == 0)
248	return opt_format_error(s, flags);
249	*result = FORMAT_PKCS12;
250	break;
251	case 'P':
252	case 'p':
253	if (s[1] == '\0' \|\| strcmp(s, "PEM") == 0 \|\| strcmp(s, "pem") == 0) {
254	if ((flags & OPT_FMT_PEMDER) == 0)
255	return opt_format_error(s, flags);
256	*result = FORMAT_PEM;
257	} else if (strcmp(s, "PVK") == 0 \|\| strcmp(s, "pvk") == 0) {
258	if ((flags & OPT_FMT_PVK) == 0)
259	return opt_format_error(s, flags);
260	*result = FORMAT_PVK;
261	} else if (strcmp(s, "P12") == 0 \|\| strcmp(s, "p12") == 0
262	\|\| strcmp(s, "PKCS12") == 0 \|\| strcmp(s, "pkcs12") == 0) {
263	if ((flags & OPT_FMT_PKCS12) == 0)
264	return opt_format_error(s, flags);
265	*result = FORMAT_PKCS12;
266	} else {
267	return 0;
268	}
269	break;
270	}
271	return 1;
272	}
273
274	/* Parse a cipher name, put it in EVP_CIPHER; return 0 on failure, else 1. /
275	int opt_cipher(const char name, const EVP_CIPHER *cipherp)
276	{
277	*cipherp = EVP_get_cipherbyname(name);
278	if (*cipherp != NULL)
279	return 1;
280	BIO_printf(bio_err, "%s: Unrecognized flag %s\n", prog, name);
281	return 0;
282	}
283
284	/*
285	* Parse message digest name, put it in *EVP_MD; return 0 on failure, else 1.
286	*/
287	int opt_md(const char name, const EVP_MD *mdp)
288	{
289	*mdp = EVP_get_digestbyname(name);
290	if (*mdp != NULL)
291	return 1;
292	BIO_printf(bio_err, "%s: Unrecognized flag %s\n", prog, name);
293	return 0;
294	}
295
296	/* Look through a list of name/value pairs. */
297	int opt_pair(const char name, const OPT_PAIR pairs, int *result)
298	{
299	const OPT_PAIR *pp;
300
301	for (pp = pairs; pp->name; pp++)
302	if (strcmp(pp->name, name) == 0) {
303	*result = pp->retval;
304	return 1;
305	}
306	BIO_printf(bio_err, "%s: Value must be one of:\n", prog);
307	for (pp = pairs; pp->name; pp++)
308	BIO_printf(bio_err, "\t%s\n", pp->name);
309	return 0;
310	}
311
312	/* Parse an int, put it into result; return 0 on failure, else 1. /
313	int opt_int(const char value, int result)
314	{
315	long l;
316
317	if (!opt_long(value, &l))
318	return 0;
319	*result = (int)l;
320	if (*result != l) {
321	BIO_printf(bio_err, "%s: Value \"%s\" outside integer range\n",
322	prog, value);
323	return 0;
324	}
325	return 1;
326	}
327
328	static void opt_number_error(const char *v)
329	{
330	size_t i = 0;
331	struct strstr_pair_st {
332	char *prefix;
333	char *name;
334	} b[] = {
335	{"0x", "a hexadecimal"},
336	{"0X", "a hexadecimal"},
337	{"0", "an octal"}
338	};
339
340	for (i = 0; i < OSSL_NELEM(b); i++) {
341	if (strncmp(v, b[i].prefix, strlen(b[i].prefix)) == 0) {
342	BIO_printf(bio_err,
343	"%s: Can't parse \"%s\" as %s number\n",
344	prog, v, b[i].name);
345	return;
346	}
347	}
348	BIO_printf(bio_err, "%s: Can't parse \"%s\" as a number\n", prog, v);
349	return;
350	}
351
352	/* Parse a long, put it into result; return 0 on failure, else 1. /
353	int opt_long(const char value, long result)
354	{
355	int oerrno = errno;
356	long l;
357	char *endp;
358
359	errno = 0;
360	l = strtol(value, &endp, 0);
361	if (*endp
362	\|\| endp == value
363	\|\| ((l == LONG_MAX \|\| l == LONG_MIN) && errno == ERANGE)
364	\|\| (l == 0 && errno != 0)) {
365	opt_number_error(value);
366	errno = oerrno;
367	return 0;
368	}
369	*result = l;
370	errno = oerrno;
371	return 1;
372	}
373
374	#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L && \
375	defined(INTMAX_MAX) && defined(UINTMAX_MAX)
376
377	/* Parse an intmax_t, put it into result; return 0 on failure, else 1. /
378	int opt_imax(const char value, intmax_t result)
379	{
380	int oerrno = errno;
381	intmax_t m;
382	char *endp;
383
384	errno = 0;
385	m = strtoimax(value, &endp, 0);
386	if (*endp
387	\|\| endp == value
388	\|\| ((m == INTMAX_MAX \|\| m == INTMAX_MIN) && errno == ERANGE)
389	\|\| (m == 0 && errno != 0)) {
390	opt_number_error(value);
391	errno = oerrno;
392	return 0;
393	}
394	*result = m;
395	errno = oerrno;
396	return 1;
397	}
398
399	/* Parse a uintmax_t, put it into result; return 0 on failure, else 1. /
400	int opt_umax(const char value, uintmax_t result)
401	{
402	int oerrno = errno;
403	uintmax_t m;
404	char *endp;
405
406	errno = 0;
407	m = strtoumax(value, &endp, 0);
408	if (*endp
409	\|\| endp == value
410	\|\| (m == UINTMAX_MAX && errno == ERANGE)
411	\|\| (m == 0 && errno != 0)) {
412	opt_number_error(value);
413	errno = oerrno;
414	return 0;
415	}
416	*result = m;
417	errno = oerrno;
418	return 1;
419	}
420	#endif
421
422	/*
423	* Parse an unsigned long, put it into *result; return 0 on failure, else 1.
424	*/
425	int opt_ulong(const char value, unsigned long result)
426	{
427	int oerrno = errno;
428	char *endptr;
429	unsigned long l;
430
431	errno = 0;
432	l = strtoul(value, &endptr, 0);
433	if (*endptr
434	\|\| endptr == value
435	\|\| ((l == ULONG_MAX) && errno == ERANGE)
436	\|\| (l == 0 && errno != 0)) {
437	opt_number_error(value);
438	errno = oerrno;
439	return 0;
440	}
441	*result = l;
442	errno = oerrno;
443	return 1;
444	}
445
446	/*
447	* We pass opt as an int but cast it to "enum range" so that all the
448	* items in the OPT_V_ENUM enumeration are caught; this makes -Wswitch
449	* in gcc do the right thing.
450	*/
451	enum range { OPT_V_ENUM };
452
453	int opt_verify(int opt, X509_VERIFY_PARAM *vpm)
454	{
455	int i;
456	ossl_intmax_t t = 0;
457	ASN1_OBJECT *otmp;
458	X509_PURPOSE *xptmp;
459	const X509_VERIFY_PARAM *vtmp;
460
461	assert(vpm != NULL);
462	assert(opt > OPT_V__FIRST);
463	assert(opt < OPT_V__LAST);
464
465	switch ((enum range)opt) {
466	case OPT_V__FIRST:
467	case OPT_V__LAST:
468	return 0;
469	case OPT_V_POLICY:
470	otmp = OBJ_txt2obj(opt_arg(), 0);
471	if (otmp == NULL) {
472	BIO_printf(bio_err, "%s: Invalid Policy %s\n", prog, opt_arg());
473	return 0;
474	}
475	X509_VERIFY_PARAM_add0_policy(vpm, otmp);
476	break;
477	case OPT_V_PURPOSE:
478	/* purpose name -> purpose index */
479	i = X509_PURPOSE_get_by_sname(opt_arg());
480	if (i < 0) {
481	BIO_printf(bio_err, "%s: Invalid purpose %s\n", prog, opt_arg());
482	return 0;
483	}
484
485	/* purpose index -> purpose object */
486	xptmp = X509_PURPOSE_get0(i);
487
488	/* purpose object -> purpose value */
489	i = X509_PURPOSE_get_id(xptmp);
490
491	if (!X509_VERIFY_PARAM_set_purpose(vpm, i)) {
492	BIO_printf(bio_err,
493	"%s: Internal error setting purpose %s\n",
494	prog, opt_arg());
495	return 0;
496	}
497	break;
498	case OPT_V_VERIFY_NAME:
499	vtmp = X509_VERIFY_PARAM_lookup(opt_arg());
500	if (vtmp == NULL) {
501	BIO_printf(bio_err, "%s: Invalid verify name %s\n",
502	prog, opt_arg());
503	return 0;
504	}
505	X509_VERIFY_PARAM_set1(vpm, vtmp);
506	break;
507	case OPT_V_VERIFY_DEPTH:
508	i = atoi(opt_arg());
509	if (i >= 0)
510	X509_VERIFY_PARAM_set_depth(vpm, i);
511	break;
512	case OPT_V_VERIFY_AUTH_LEVEL:
513	i = atoi(opt_arg());
514	if (i >= 0)
515	X509_VERIFY_PARAM_set_auth_level(vpm, i);
516	break;
517	case OPT_V_ATTIME:
518	if (!opt_imax(opt_arg(), &t))
519	return 0;
520	if (t != (time_t)t) {
521	BIO_printf(bio_err, "%s: epoch time out of range %s\n",
522	prog, opt_arg());
523	return 0;
524	}
525	X509_VERIFY_PARAM_set_time(vpm, (time_t)t);
526	break;
527	case OPT_V_VERIFY_HOSTNAME:
528	if (!X509_VERIFY_PARAM_set1_host(vpm, opt_arg(), 0))
529	return 0;
530	break;
531	case OPT_V_VERIFY_EMAIL:
532	if (!X509_VERIFY_PARAM_set1_email(vpm, opt_arg(), 0))
533	return 0;
534	break;
535	case OPT_V_VERIFY_IP:
536	if (!X509_VERIFY_PARAM_set1_ip_asc(vpm, opt_arg()))
537	return 0;
538	break;
539	case OPT_V_IGNORE_CRITICAL:
540	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_IGNORE_CRITICAL);
541	break;
542	case OPT_V_ISSUER_CHECKS:
543	/* NOP, deprecated */
544	break;
545	case OPT_V_CRL_CHECK:
546	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_CRL_CHECK);
547	break;
548	case OPT_V_CRL_CHECK_ALL:
549	X509_VERIFY_PARAM_set_flags(vpm,
550	X509_V_FLAG_CRL_CHECK \|
551	X509_V_FLAG_CRL_CHECK_ALL);
552	break;
553	case OPT_V_POLICY_CHECK:
554	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_POLICY_CHECK);
555	break;
556	case OPT_V_EXPLICIT_POLICY:
557	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_EXPLICIT_POLICY);
558	break;
559	case OPT_V_INHIBIT_ANY:
560	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_INHIBIT_ANY);
561	break;
562	case OPT_V_INHIBIT_MAP:
563	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_INHIBIT_MAP);
564	break;
565	case OPT_V_X509_STRICT:
566	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_X509_STRICT);
567	break;
568	case OPT_V_EXTENDED_CRL:
569	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_EXTENDED_CRL_SUPPORT);
570	break;
571	case OPT_V_USE_DELTAS:
572	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_USE_DELTAS);
573	break;
574	case OPT_V_POLICY_PRINT:
575	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_NOTIFY_POLICY);
576	break;
577	case OPT_V_CHECK_SS_SIG:
578	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_CHECK_SS_SIGNATURE);
579	break;
580	case OPT_V_TRUSTED_FIRST:
581	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_TRUSTED_FIRST);
582	break;
583	case OPT_V_SUITEB_128_ONLY:
584	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_SUITEB_128_LOS_ONLY);
585	break;
586	case OPT_V_SUITEB_128:
587	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_SUITEB_128_LOS);
588	break;
589	case OPT_V_SUITEB_192:
590	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_SUITEB_192_LOS);
591	break;
592	case OPT_V_PARTIAL_CHAIN:
593	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_PARTIAL_CHAIN);
594	break;
595	case OPT_V_NO_ALT_CHAINS:
596	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_NO_ALT_CHAINS);
597	break;
598	case OPT_V_NO_CHECK_TIME:
599	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_NO_CHECK_TIME);
600	break;
601	case OPT_V_ALLOW_PROXY_CERTS:
602	X509_VERIFY_PARAM_set_flags(vpm, X509_V_FLAG_ALLOW_PROXY_CERTS);
603	break;
604	}
605	return 1;
606
607	}
608
609	/*
610	* Parse the next flag (and value if specified), return 0 if done, -1 on
611	* error, otherwise the flag's retval.
612	*/
613	int opt_next(void)
614	{
615	char *p;
616	const OPTIONS *o;
617	int ival;
618	long lval;
619	unsigned long ulval;
620	ossl_intmax_t imval;
621	ossl_uintmax_t umval;
622
623	/* Look at current arg; at end of the list? */
624	arg = NULL;
625	p = argv[opt_index];
626	if (p == NULL)
627	return 0;
628
629	/* If word doesn't start with a -, we're done. */
630	if (*p != '-')
631	return 0;
632
633	/* Hit "--" ? We're done. */
634	opt_index++;
635	if (strcmp(p, "--") == 0)
636	return 0;
637
638	/* Allow -nnn and --nnn */
639	if (*++p == '-')
640	p++;
641	flag = p - 1;
642
643	/* If we have --flag=foo, snip it off */
644	if ((arg = strchr(p, '=')) != NULL)
645	*arg++ = '\0';
646	for (o = opts; o->name; ++o) {
647	/* If not this option, move on to the next one. */
648	if (strcmp(p, o->name) != 0)
649	continue;
650
651	/* If it doesn't take a value, make sure none was given. */
652	if (o->valtype == 0 \|\| o->valtype == '-') {
653	if (arg) {
654	BIO_printf(bio_err,
655	"%s: Option -%s does not take a value\n", prog, p);
656	return -1;
657	}
658	return o->retval;
659	}
660
661	/* Want a value; get the next param if =foo not used. */
662	if (arg == NULL) {
663	if (argv[opt_index] == NULL) {
664	BIO_printf(bio_err,
665	"%s: Option -%s needs a value\n", prog, o->name);
666	return -1;
667	}
668	arg = argv[opt_index++];
669	}
670
671	/* Syntax-check value. */
672	switch (o->valtype) {
673	default:
674	case 's':
675	/* Just a string. */
676	break;
677	case '/':
678	if (app_isdir(arg) > 0)
679	break;
680	BIO_printf(bio_err, "%s: Not a directory: %s\n", prog, arg);
681	return -1;
682	case '<':
683	/* Input file. */
684	break;
685	case '>':
686	/* Output file. */
687	break;
688	case 'p':
689	case 'n':
690	if (!opt_int(arg, &ival)
691	\|\| (o->valtype == 'p' && ival <= 0)) {
692	BIO_printf(bio_err,
693	"%s: Non-positive number \"%s\" for -%s\n",
694	prog, arg, o->name);
695	return -1;
696	}
697	break;
698	case 'M':
699	if (!opt_imax(arg, &imval)) {
700	BIO_printf(bio_err,
701	"%s: Invalid number \"%s\" for -%s\n",
702	prog, arg, o->name);
703	return -1;
704	}
705	break;
706	case 'U':
707	if (!opt_umax(arg, &umval)) {
708	BIO_printf(bio_err,
709	"%s: Invalid number \"%s\" for -%s\n",
710	prog, arg, o->name);
711	return -1;
712	}
713	break;
714	case 'l':
715	if (!opt_long(arg, &lval)) {
716	BIO_printf(bio_err,
717	"%s: Invalid number \"%s\" for -%s\n",
718	prog, arg, o->name);
719	return -1;
720	}
721	break;
722	case 'u':
723	if (!opt_ulong(arg, &ulval)) {
724	BIO_printf(bio_err,
725	"%s: Invalid number \"%s\" for -%s\n",
726	prog, arg, o->name);
727	return -1;
728	}
729	break;
730	case 'c':
731	case 'E':
732	case 'F':
733	case 'f':
734	if (opt_format(arg,
735	o->valtype == 'c' ? OPT_FMT_PDS :
736	o->valtype == 'E' ? OPT_FMT_PDE :
737	o->valtype == 'F' ? OPT_FMT_PEMDER
738	: OPT_FMT_ANY, &ival))
739	break;
740	BIO_printf(bio_err,
741	"%s: Invalid format \"%s\" for -%s\n",
742	prog, arg, o->name);
743	return -1;
744	}
745
746	/* Return the flag value. */
747	return o->retval;
748	}
749	if (unknown != NULL) {
750	dunno = p;
751	return unknown->retval;
752	}
753	BIO_printf(bio_err, "%s: Option unknown option -%s\n", prog, p);
754	return -1;
755	}
756
757	/* Return the most recent flag parameter. */
758	char *opt_arg(void)
759	{
760	return arg;
761	}
762
763	/* Return the most recent flag. */
764	char *opt_flag(void)
765	{
766	return flag;
767	}
768
769	/* Return the unknown option. */
770	char *opt_unknown(void)
771	{
772	return dunno;
773	}
774
775	/* Return the rest of the arguments after parsing flags. */
776	char **opt_rest(void)
777	{
778	return &argv[opt_index];
779	}
780
781	/* How many items in remaining args? */
782	int opt_num_rest(void)
783	{
784	int i = 0;
785	char **pp;
786
787	for (pp = opt_rest(); *pp; pp++, i++)
788	continue;
789	return i;
790	}
791
792	/* Return a string describing the parameter type. */
793	static const char valtype2param(const OPTIONS o)
794	{
795	switch (o->valtype) {
796	case 0:
797	case '-':
798	return "";
799	case 's':
800	return "val";
801	case '/':
802	return "dir";
803	case '<':
804	return "infile";
805	case '>':
806	return "outfile";
807	case 'p':
808	return "+int";
809	case 'n':
810	return "int";
811	case 'l':
812	return "long";
813	case 'u':
814	return "ulong";
815	case 'E':
816	return "PEM\|DER\|ENGINE";
817	case 'F':
818	return "PEM\|DER";
819	case 'f':
820	return "format";
821	case 'M':
822	return "intmax";
823	case 'U':
824	return "uintmax";
825	}
826	return "parm";
827	}
828
829	void opt_help(const OPTIONS *list)
830	{
831	const OPTIONS *o;
832	int i;
833	int standard_prolog;
834	int width = 5;
835	char start[80 + 1];
836	char *p;
837	const char *help;
838
839	/* Starts with its own help message? */
840	standard_prolog = list[0].name != OPT_HELP_STR;
841
842	/* Find the widest help. */
843	for (o = list; o->name; o++) {
844	if (o->name == OPT_MORE_STR)
845	continue;
846	i = 2 + (int)strlen(o->name);
847	if (o->valtype != '-')
848	i += 1 + strlen(valtype2param(o));
849	if (i < MAX_OPT_HELP_WIDTH && i > width)
850	width = i;
851	assert(i < (int)sizeof(start));
852	}
853
854	if (standard_prolog)
855	BIO_printf(bio_err, "Usage: %s [options]\nValid options are:\n",
856	prog);
857
858	/* Now let's print. */
859	for (o = list; o->name; o++) {
860	help = o->helpstr ? o->helpstr : "(No additional info)";
861	if (o->name == OPT_HELP_STR) {
862	BIO_printf(bio_err, help, prog);
863	continue;
864	}
865
866	/* Pad out prefix */
867	memset(start, ' ', sizeof(start) - 1);
868	start[sizeof(start) - 1] = '\0';
869
870	if (o->name == OPT_MORE_STR) {
871	/* Continuation of previous line; pad and print. */
872	start[width] = '\0';
873	BIO_printf(bio_err, "%s %s\n", start, help);
874	continue;
875	}
876
877	/* Build up the "-flag [param]" part. */
878	p = start;
879	*p++ = ' ';
880	*p++ = '-';
881	if (o->name[0])
882	p += strlen(strcpy(p, o->name));
883	else
884	p++ = '';
885	if (o->valtype != '-') {
886	*p++ = ' ';
887	p += strlen(strcpy(p, valtype2param(o)));
888	}
889	*p = ' ';
890	if ((int)(p - start) >= MAX_OPT_HELP_WIDTH) {
891	*p = '\0';
892	BIO_printf(bio_err, "%s\n", start);
893	memset(start, ' ', sizeof(start));
894	}
895	start[width] = '\0';
896	BIO_printf(bio_err, "%s %s\n", start, help);
897	}
898	}

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source: vbox/trunk/src/libs/openssl-1.1.1l/apps/opt.c@ 92376

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