2 * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
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
11 #if !defined(OPENSSL_SYS_MSDOS)
12 # include OPENSSL_UNISTD
19 #include <openssl/bio.h>
20 #include <openssl/x509v3.h>
22 #define MAX_OPT_HELP_WIDTH 30
23 const char OPT_HELP_STR
[] = "--";
24 const char OPT_MORE_STR
[] = "---";
33 static const OPTIONS
*unknown
;
34 static const OPTIONS
*opts
;
38 * Return the simple name of the program; removing various platform gunk.
40 #if defined(OPENSSL_SYS_WIN32)
41 char *opt_progname(const char *argv0
)
47 /* find the last '/', '\' or ':' */
48 for (p
= argv0
+ strlen(argv0
); --p
> argv0
;)
49 if (*p
== '/' || *p
== '\\' || *p
== ':') {
54 /* Strip off trailing nonsense. */
57 (strcmp(&p
[n
- 4], ".exe") == 0 || strcmp(&p
[n
- 4], ".EXE") == 0))
60 /* Copy over the name, in lowercase. */
61 if (n
> sizeof(prog
) - 1)
63 for (q
= prog
, i
= 0; i
< n
; i
++, p
++)
64 *q
++ = tolower((unsigned char)*p
);
69 #elif defined(OPENSSL_SYS_VMS)
71 char *opt_progname(const char *argv0
)
75 /* Find last special character sys:[foo.bar]openssl */
76 for (p
= argv0
+ strlen(argv0
); --p
> argv0
;)
77 if (*p
== ':' || *p
== ']' || *p
== '>') {
83 strncpy(prog
, p
, sizeof(prog
) - 1);
84 prog
[sizeof(prog
) - 1] = '\0';
85 if (q
!= NULL
&& q
- p
< sizeof(prog
))
92 char *opt_progname(const char *argv0
)
96 /* Could use strchr, but this is like the ones above. */
97 for (p
= argv0
+ strlen(argv0
); --p
> argv0
;)
102 strncpy(prog
, p
, sizeof(prog
) - 1);
103 prog
[sizeof(prog
) - 1] = '\0';
108 char *opt_getprog(void)
113 /* Set up the arg parsing. */
114 char *opt_init(int ac
, char **av
, const OPTIONS
*o
)
124 for (; o
->name
; ++o
) {
130 if (o
->name
== OPT_HELP_STR
|| o
->name
== OPT_MORE_STR
)
135 /* Make sure options are legit. */
136 assert(o
->name
[0] != '-');
137 assert(o
->retval
> 0);
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':
147 /* Make sure there are no duplicates. */
148 for (next
= o
+ 1; next
->name
; ++next
) {
150 * Some compilers inline strcmp and the assert string is too long.
152 duplicated
= strcmp(o
->name
, next
->name
) == 0;
156 if (o
->name
[0] == '\0') {
157 assert(unknown
== NULL
);
159 assert(unknown
->valtype
== 0 || unknown
->valtype
== '-');
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 {"netscape", OPT_FMT_NETSCAPE
},
172 {"nss", OPT_FMT_NSS
},
173 {"text", OPT_FMT_TEXT
},
174 {"http", OPT_FMT_HTTP
},
175 {"pvk", OPT_FMT_PVK
},
179 /* Print an error message about a failed format parse. */
180 int opt_format_error(const char *s
, unsigned long flags
)
184 if (flags
== OPT_FMT_PEMDER
) {
185 BIO_printf(bio_err
, "%s: Bad format \"%s\"; must be pem or der\n",
188 BIO_printf(bio_err
, "%s: Bad format \"%s\"; must be one of:\n",
190 for (ap
= formats
; ap
->name
; ap
++)
191 if (flags
& ap
->retval
)
192 BIO_printf(bio_err
, " %s\n", ap
->name
);
197 /* Parse a format string, put it into *result; return 0 on failure, else 1. */
198 int opt_format(const char *s
, unsigned long flags
, int *result
)
205 if ((flags
& OPT_FMT_PEMDER
) == 0)
206 return opt_format_error(s
, flags
);
207 *result
= FORMAT_ASN1
;
211 if ((flags
& OPT_FMT_TEXT
) == 0)
212 return opt_format_error(s
, flags
);
213 *result
= FORMAT_TEXT
;
217 if ((flags
& OPT_FMT_NSS
) == 0)
218 return opt_format_error(s
, flags
);
219 if (strcmp(s
, "NSS") != 0 && strcmp(s
, "nss") != 0)
220 return opt_format_error(s
, flags
);
221 *result
= FORMAT_NSS
;
225 if ((flags
& OPT_FMT_SMIME
) == 0)
226 return opt_format_error(s
, flags
);
227 *result
= FORMAT_SMIME
;
231 if ((flags
& OPT_FMT_MSBLOB
) == 0)
232 return opt_format_error(s
, flags
);
233 *result
= FORMAT_MSBLOB
;
237 if ((flags
& OPT_FMT_ENGINE
) == 0)
238 return opt_format_error(s
, flags
);
239 *result
= FORMAT_ENGINE
;
243 if ((flags
& OPT_FMT_HTTP
) == 0)
244 return opt_format_error(s
, flags
);
245 *result
= FORMAT_HTTP
;
248 if ((flags
& OPT_FMT_PKCS12
) == 0)
249 return opt_format_error(s
, flags
);
250 *result
= FORMAT_PKCS12
;
254 if (s
[1] == '\0' || strcmp(s
, "PEM") == 0 || strcmp(s
, "pem") == 0) {
255 if ((flags
& OPT_FMT_PEMDER
) == 0)
256 return opt_format_error(s
, flags
);
257 *result
= FORMAT_PEM
;
258 } else if (strcmp(s
, "PVK") == 0 || strcmp(s
, "pvk") == 0) {
259 if ((flags
& OPT_FMT_PVK
) == 0)
260 return opt_format_error(s
, flags
);
261 *result
= FORMAT_PVK
;
262 } else if (strcmp(s
, "P12") == 0 || strcmp(s
, "p12") == 0
263 || strcmp(s
, "PKCS12") == 0 || strcmp(s
, "pkcs12") == 0) {
264 if ((flags
& OPT_FMT_PKCS12
) == 0)
265 return opt_format_error(s
, flags
);
266 *result
= FORMAT_PKCS12
;
275 /* Parse a cipher name, put it in *EVP_CIPHER; return 0 on failure, else 1. */
276 int opt_cipher(const char *name
, const EVP_CIPHER
**cipherp
)
278 *cipherp
= EVP_get_cipherbyname(name
);
279 if (*cipherp
!= NULL
)
281 BIO_printf(bio_err
, "%s: Unrecognized flag %s\n", prog
, name
);
286 * Parse message digest name, put it in *EVP_MD; return 0 on failure, else 1.
288 int opt_md(const char *name
, const EVP_MD
**mdp
)
290 *mdp
= EVP_get_digestbyname(name
);
293 BIO_printf(bio_err
, "%s: Unrecognized flag %s\n", prog
, name
);
297 /* Look through a list of name/value pairs. */
298 int opt_pair(const char *name
, const OPT_PAIR
* pairs
, int *result
)
302 for (pp
= pairs
; pp
->name
; pp
++)
303 if (strcmp(pp
->name
, name
) == 0) {
304 *result
= pp
->retval
;
307 BIO_printf(bio_err
, "%s: Value must be one of:\n", prog
);
308 for (pp
= pairs
; pp
->name
; pp
++)
309 BIO_printf(bio_err
, "\t%s\n", pp
->name
);
313 /* Parse an int, put it into *result; return 0 on failure, else 1. */
314 int opt_int(const char *value
, int *result
)
318 if (!opt_long(value
, &l
))
322 BIO_printf(bio_err
, "%s: Value \"%s\" outside integer range\n",
329 static void opt_number_error(const char *v
)
332 struct strstr_pair_st
{
336 {"0x", "a hexadecimal"},
337 {"0X", "a hexadecimal"},
341 for (i
= 0; i
< OSSL_NELEM(b
); i
++) {
342 if (strncmp(v
, b
[i
].prefix
, strlen(b
[i
].prefix
)) == 0) {
344 "%s: Can't parse \"%s\" as %s number\n",
349 BIO_printf(bio_err
, "%s: Can't parse \"%s\" as a number\n", prog
, v
);
353 /* Parse a long, put it into *result; return 0 on failure, else 1. */
354 int opt_long(const char *value
, long *result
)
361 l
= strtol(value
, &endp
, 0);
364 || ((l
== LONG_MAX
|| l
== LONG_MIN
) && errno
== ERANGE
)
365 || (l
== 0 && errno
!= 0)) {
366 opt_number_error(value
);
375 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L && \
376 defined(INTMAX_MAX) && defined(UINTMAX_MAX)
378 /* Parse an intmax_t, put it into *result; return 0 on failure, else 1. */
379 int opt_imax(const char *value
, intmax_t *result
)
386 m
= strtoimax(value
, &endp
, 0);
389 || ((m
== INTMAX_MAX
|| m
== INTMAX_MIN
) && errno
== ERANGE
)
390 || (m
== 0 && errno
!= 0)) {
391 opt_number_error(value
);
400 /* Parse a uintmax_t, put it into *result; return 0 on failure, else 1. */
401 int opt_umax(const char *value
, uintmax_t *result
)
408 m
= strtoumax(value
, &endp
, 0);
411 || (m
== UINTMAX_MAX
&& errno
== ERANGE
)
412 || (m
== 0 && errno
!= 0)) {
413 opt_number_error(value
);
424 * Parse an unsigned long, put it into *result; return 0 on failure, else 1.
426 int opt_ulong(const char *value
, unsigned long *result
)
433 l
= strtoul(value
, &endptr
, 0);
436 || ((l
== ULONG_MAX
) && errno
== ERANGE
)
437 || (l
== 0 && errno
!= 0)) {
438 opt_number_error(value
);
448 * We pass opt as an int but cast it to "enum range" so that all the
449 * items in the OPT_V_ENUM enumeration are caught; this makes -Wswitch
450 * in gcc do the right thing.
452 enum range
{ OPT_V_ENUM
};
454 int opt_verify(int opt
, X509_VERIFY_PARAM
*vpm
)
460 const X509_VERIFY_PARAM
*vtmp
;
463 assert(opt
> OPT_V__FIRST
);
464 assert(opt
< OPT_V__LAST
);
466 switch ((enum range
)opt
) {
471 otmp
= OBJ_txt2obj(opt_arg(), 0);
473 BIO_printf(bio_err
, "%s: Invalid Policy %s\n", prog
, opt_arg());
476 X509_VERIFY_PARAM_add0_policy(vpm
, otmp
);
479 /* purpose name -> purpose index */
480 i
= X509_PURPOSE_get_by_sname(opt_arg());
482 BIO_printf(bio_err
, "%s: Invalid purpose %s\n", prog
, opt_arg());
486 /* purpose index -> purpose object */
487 xptmp
= X509_PURPOSE_get0(i
);
489 /* purpose object -> purpose value */
490 i
= X509_PURPOSE_get_id(xptmp
);
492 if (!X509_VERIFY_PARAM_set_purpose(vpm
, i
)) {
494 "%s: Internal error setting purpose %s\n",
499 case OPT_V_VERIFY_NAME
:
500 vtmp
= X509_VERIFY_PARAM_lookup(opt_arg());
502 BIO_printf(bio_err
, "%s: Invalid verify name %s\n",
506 X509_VERIFY_PARAM_set1(vpm
, vtmp
);
508 case OPT_V_VERIFY_DEPTH
:
511 X509_VERIFY_PARAM_set_depth(vpm
, i
);
513 case OPT_V_VERIFY_AUTH_LEVEL
:
516 X509_VERIFY_PARAM_set_auth_level(vpm
, i
);
519 if (!opt_imax(opt_arg(), &t
))
521 if (t
!= (time_t)t
) {
522 BIO_printf(bio_err
, "%s: epoch time out of range %s\n",
526 X509_VERIFY_PARAM_set_time(vpm
, (time_t)t
);
528 case OPT_V_VERIFY_HOSTNAME
:
529 if (!X509_VERIFY_PARAM_set1_host(vpm
, opt_arg(), 0))
532 case OPT_V_VERIFY_EMAIL
:
533 if (!X509_VERIFY_PARAM_set1_email(vpm
, opt_arg(), 0))
536 case OPT_V_VERIFY_IP
:
537 if (!X509_VERIFY_PARAM_set1_ip_asc(vpm
, opt_arg()))
540 case OPT_V_IGNORE_CRITICAL
:
541 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_IGNORE_CRITICAL
);
543 case OPT_V_ISSUER_CHECKS
:
544 /* NOP, deprecated */
546 case OPT_V_CRL_CHECK
:
547 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_CRL_CHECK
);
549 case OPT_V_CRL_CHECK_ALL
:
550 X509_VERIFY_PARAM_set_flags(vpm
,
551 X509_V_FLAG_CRL_CHECK
|
552 X509_V_FLAG_CRL_CHECK_ALL
);
554 case OPT_V_POLICY_CHECK
:
555 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_POLICY_CHECK
);
557 case OPT_V_EXPLICIT_POLICY
:
558 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_EXPLICIT_POLICY
);
560 case OPT_V_INHIBIT_ANY
:
561 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_INHIBIT_ANY
);
563 case OPT_V_INHIBIT_MAP
:
564 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_INHIBIT_MAP
);
566 case OPT_V_X509_STRICT
:
567 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_X509_STRICT
);
569 case OPT_V_EXTENDED_CRL
:
570 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_EXTENDED_CRL_SUPPORT
);
572 case OPT_V_USE_DELTAS
:
573 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_USE_DELTAS
);
575 case OPT_V_POLICY_PRINT
:
576 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_NOTIFY_POLICY
);
578 case OPT_V_CHECK_SS_SIG
:
579 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_CHECK_SS_SIGNATURE
);
581 case OPT_V_TRUSTED_FIRST
:
582 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_TRUSTED_FIRST
);
584 case OPT_V_SUITEB_128_ONLY
:
585 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_SUITEB_128_LOS_ONLY
);
587 case OPT_V_SUITEB_128
:
588 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_SUITEB_128_LOS
);
590 case OPT_V_SUITEB_192
:
591 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_SUITEB_192_LOS
);
593 case OPT_V_PARTIAL_CHAIN
:
594 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_PARTIAL_CHAIN
);
596 case OPT_V_NO_ALT_CHAINS
:
597 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_NO_ALT_CHAINS
);
599 case OPT_V_NO_CHECK_TIME
:
600 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_NO_CHECK_TIME
);
602 case OPT_V_ALLOW_PROXY_CERTS
:
603 X509_VERIFY_PARAM_set_flags(vpm
, X509_V_FLAG_ALLOW_PROXY_CERTS
);
611 * Parse the next flag (and value if specified), return 0 if done, -1 on
612 * error, otherwise the flag's retval.
622 ossl_uintmax_t umval
;
624 /* Look at current arg; at end of the list? */
630 /* If word doesn't start with a -, we're done. */
634 /* Hit "--" ? We're done. */
636 if (strcmp(p
, "--") == 0)
639 /* Allow -nnn and --nnn */
644 /* If we have --flag=foo, snip it off */
645 if ((arg
= strchr(p
, '=')) != NULL
)
647 for (o
= opts
; o
->name
; ++o
) {
648 /* If not this option, move on to the next one. */
649 if (strcmp(p
, o
->name
) != 0)
652 /* If it doesn't take a value, make sure none was given. */
653 if (o
->valtype
== 0 || o
->valtype
== '-') {
656 "%s: Option -%s does not take a value\n", prog
, p
);
662 /* Want a value; get the next param if =foo not used. */
664 if (argv
[opt_index
] == NULL
) {
666 "%s: Option -%s needs a value\n", prog
, o
->name
);
669 arg
= argv
[opt_index
++];
672 /* Syntax-check value. */
673 switch (o
->valtype
) {
679 if (app_isdir(arg
) > 0)
681 BIO_printf(bio_err
, "%s: Not a directory: %s\n", prog
, arg
);
691 if (!opt_int(arg
, &ival
)
692 || (o
->valtype
== 'p' && ival
<= 0)) {
694 "%s: Non-positive number \"%s\" for -%s\n",
700 if (!opt_imax(arg
, &imval
)) {
702 "%s: Invalid number \"%s\" for -%s\n",
708 if (!opt_umax(arg
, &umval
)) {
710 "%s: Invalid number \"%s\" for -%s\n",
716 if (!opt_long(arg
, &lval
)) {
718 "%s: Invalid number \"%s\" for -%s\n",
724 if (!opt_ulong(arg
, &ulval
)) {
726 "%s: Invalid number \"%s\" for -%s\n",
736 o
->valtype
== 'c' ? OPT_FMT_PDS
:
737 o
->valtype
== 'E' ? OPT_FMT_PDE
:
738 o
->valtype
== 'F' ? OPT_FMT_PEMDER
739 : OPT_FMT_ANY
, &ival
))
742 "%s: Invalid format \"%s\" for -%s\n",
747 /* Return the flag value. */
750 if (unknown
!= NULL
) {
752 return unknown
->retval
;
754 BIO_printf(bio_err
, "%s: Option unknown option -%s\n", prog
, p
);
758 /* Return the most recent flag parameter. */
764 /* Return the most recent flag. */
770 /* Return the unknown option. */
771 char *opt_unknown(void)
776 /* Return the rest of the arguments after parsing flags. */
777 char **opt_rest(void)
779 return &argv
[opt_index
];
782 /* How many items in remaining args? */
783 int opt_num_rest(void)
788 for (pp
= opt_rest(); *pp
; pp
++, i
++)
793 /* Return a string describing the parameter type. */
794 static const char *valtype2param(const OPTIONS
*o
)
796 switch (o
->valtype
) {
817 return "PEM|DER|ENGINE";
830 void opt_help(const OPTIONS
*list
)
840 /* Starts with its own help message? */
841 standard_prolog
= list
[0].name
!= OPT_HELP_STR
;
843 /* Find the widest help. */
844 for (o
= list
; o
->name
; o
++) {
845 if (o
->name
== OPT_MORE_STR
)
847 i
= 2 + (int)strlen(o
->name
);
848 if (o
->valtype
!= '-')
849 i
+= 1 + strlen(valtype2param(o
));
850 if (i
< MAX_OPT_HELP_WIDTH
&& i
> width
)
852 assert(i
< (int)sizeof(start
));
856 BIO_printf(bio_err
, "Usage: %s [options]\nValid options are:\n",
859 /* Now let's print. */
860 for (o
= list
; o
->name
; o
++) {
861 help
= o
->helpstr
? o
->helpstr
: "(No additional info)";
862 if (o
->name
== OPT_HELP_STR
) {
863 BIO_printf(bio_err
, help
, prog
);
868 memset(start
, ' ', sizeof(start
) - 1);
869 start
[sizeof(start
) - 1] = '\0';
871 if (o
->name
== OPT_MORE_STR
) {
872 /* Continuation of previous line; pad and print. */
874 BIO_printf(bio_err
, "%s %s\n", start
, help
);
878 /* Build up the "-flag [param]" part. */
883 p
+= strlen(strcpy(p
, o
->name
));
886 if (o
->valtype
!= '-') {
888 p
+= strlen(strcpy(p
, valtype2param(o
)));
891 if ((int)(p
- start
) >= MAX_OPT_HELP_WIDTH
) {
893 BIO_printf(bio_err
, "%s\n", start
);
894 memset(start
, ' ', sizeof(start
));
897 BIO_printf(bio_err
, "%s %s\n", start
, help
);