xref: /openbsd/usr.bin/openssl/openssl.c (revision 23cc9d40)
1 /* $OpenBSD: openssl.c,v 1.39 2025/01/02 13:10:03 tb Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  *
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  *
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  *
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  *
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  *
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 /* ====================================================================
59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
60  *
61  * Redistribution and use in source and binary forms, with or without
62  * modification, are permitted provided that the following conditions
63  * are met:
64  *
65  * 1. Redistributions of source code must retain the above copyright
66  *    notice, this list of conditions and the following disclaimer.
67  *
68  * 2. Redistributions in binary form must reproduce the above copyright
69  *    notice, this list of conditions and the following disclaimer in
70  *    the documentation and/or other materials provided with the
71  *    distribution.
72  *
73  * 3. All advertising materials mentioning features or use of this
74  *    software must display the following acknowledgment:
75  *    "This product includes software developed by the OpenSSL Project
76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77  *
78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79  *    endorse or promote products derived from this software without
80  *    prior written permission. For written permission, please contact
81  *    openssl-core@openssl.org.
82  *
83  * 5. Products derived from this software may not be called "OpenSSL"
84  *    nor may "OpenSSL" appear in their names without prior written
85  *    permission of the OpenSSL Project.
86  *
87  * 6. Redistributions of any form whatsoever must retain the following
88  *    acknowledgment:
89  *    "This product includes software developed by the OpenSSL Project
90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91  *
92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103  * OF THE POSSIBILITY OF SUCH DAMAGE.
104  * ====================================================================
105  *
106  * This product includes cryptographic software written by Eric Young
107  * (eay@cryptsoft.com).  This product includes software written by Tim
108  * Hudson (tjh@cryptsoft.com).
109  *
110  */
111 
112 #include <err.h>
113 #include <signal.h>
114 #include <stdio.h>
115 #include <string.h>
116 #include <stdlib.h>
117 #include <unistd.h>
118 
119 #include "apps.h"
120 
121 #include <openssl/bio.h>
122 #include <openssl/conf.h>
123 #include <openssl/crypto.h>
124 #include <openssl/err.h>
125 #include <openssl/lhash.h>
126 #include <openssl/pem.h>
127 #include <openssl/ssl.h>
128 #include <openssl/x509.h>
129 
130 #define FUNC_TYPE_GENERAL       1
131 #define FUNC_TYPE_MD            2
132 #define FUNC_TYPE_CIPHER        3
133 #define FUNC_TYPE_PKEY          4
134 #define FUNC_TYPE_MD_ALG        5
135 #define FUNC_TYPE_CIPHER_ALG    6
136 
137 typedef struct {
138         int type;
139         const char *name;
140         int (*func)(int argc, char **argv);
141 } FUNCTION;
142 
143 DECLARE_LHASH_OF(FUNCTION);
144 
145 FUNCTION functions[] = {
146 
147 	/* General functions. */
148 	{ FUNC_TYPE_GENERAL, "asn1parse", asn1parse_main },
149 	{ FUNC_TYPE_GENERAL, "ca", ca_main },
150 	{ FUNC_TYPE_GENERAL, "certhash", certhash_main },
151 	{ FUNC_TYPE_GENERAL, "ciphers", ciphers_main },
152 #ifndef OPENSSL_NO_CMS
153 	{ FUNC_TYPE_GENERAL, "cms", cms_main },
154 #endif
155 	{ FUNC_TYPE_GENERAL, "crl2pkcs7", crl2pkcs7_main },
156 	{ FUNC_TYPE_GENERAL, "crl", crl_main },
157 	{ FUNC_TYPE_GENERAL, "dgst", dgst_main },
158 	{ FUNC_TYPE_GENERAL, "enc", enc_main },
159 	{ FUNC_TYPE_GENERAL, "errstr", errstr_main },
160 	{ FUNC_TYPE_GENERAL, "genpkey", genpkey_main },
161 #ifndef OPENSSL_NO_OCSP
162 	{ FUNC_TYPE_GENERAL, "ocsp", ocsp_main },
163 #endif
164 	{ FUNC_TYPE_GENERAL, "passwd", passwd_main },
165 	{ FUNC_TYPE_GENERAL, "pkcs7", pkcs7_main },
166 	{ FUNC_TYPE_GENERAL, "pkcs8", pkcs8_main },
167 #if !defined(OPENSSL_NO_DES) && !defined(OPENSSL_NO_SHA1)
168 	{ FUNC_TYPE_GENERAL, "pkcs12", pkcs12_main },
169 #endif
170 	{ FUNC_TYPE_GENERAL, "pkey", pkey_main },
171 	{ FUNC_TYPE_GENERAL, "pkeyparam", pkeyparam_main },
172 	{ FUNC_TYPE_GENERAL, "pkeyutl", pkeyutl_main },
173 	{ FUNC_TYPE_GENERAL, "prime", prime_main },
174 	{ FUNC_TYPE_GENERAL, "rand", rand_main },
175 	{ FUNC_TYPE_GENERAL, "req", req_main },
176 	{ FUNC_TYPE_GENERAL, "s_client", s_client_main },
177 	{ FUNC_TYPE_GENERAL, "s_server", s_server_main },
178 	{ FUNC_TYPE_GENERAL, "s_time", s_time_main },
179 	{ FUNC_TYPE_GENERAL, "sess_id", sess_id_main },
180 	{ FUNC_TYPE_GENERAL, "smime", smime_main },
181 #ifndef OPENSSL_NO_SPEED
182 	{ FUNC_TYPE_GENERAL, "speed", speed_main },
183 #endif
184 	{ FUNC_TYPE_GENERAL, "ts", ts_main },
185 	{ FUNC_TYPE_GENERAL, "verify", verify_main },
186 	{ FUNC_TYPE_GENERAL, "version", version_main },
187 	{ FUNC_TYPE_GENERAL, "x509", x509_main },
188 
189 #ifndef OPENSSL_NO_DH
190 	{ FUNC_TYPE_GENERAL, "dh", dh_main },
191 	{ FUNC_TYPE_GENERAL, "dhparam", dhparam_main },
192 	{ FUNC_TYPE_GENERAL, "gendh", gendh_main },
193 #endif
194 #ifndef OPENSSL_NO_DSA
195 	{ FUNC_TYPE_GENERAL, "dsa", dsa_main },
196 	{ FUNC_TYPE_GENERAL, "dsaparam", dsaparam_main },
197 	{ FUNC_TYPE_GENERAL, "gendsa", gendsa_main },
198 #endif
199 #ifndef OPENSSL_NO_EC
200 	{ FUNC_TYPE_GENERAL, "ec", ec_main },
201 	{ FUNC_TYPE_GENERAL, "ecparam", ecparam_main },
202 #endif
203 #ifndef OPENSSL_NO_RSA
204 	{ FUNC_TYPE_GENERAL, "genrsa", genrsa_main },
205 	{ FUNC_TYPE_GENERAL, "rsa", rsa_main },
206 	{ FUNC_TYPE_GENERAL, "rsautl", rsautl_main },
207 #endif
208 
209 	/* Message Digests. */
210 #ifndef OPENSSL_NO_MD4
211 	{ FUNC_TYPE_MD, "md4", dgst_main },
212 #endif
213 #ifndef OPENSSL_NO_MD5
214 	{ FUNC_TYPE_MD, "md5", dgst_main },
215 #endif
216 #ifndef OPENSSL_NO_RIPEMD160
217 	{ FUNC_TYPE_MD, "ripemd160", dgst_main },
218 #endif
219 #ifndef OPENSSL_NO_SHA1
220 	{ FUNC_TYPE_MD, "sha1", dgst_main },
221 #endif
222 #ifndef OPENSSL_NO_SHA224
223 	{ FUNC_TYPE_MD, "sha224", dgst_main },
224 #endif
225 #ifndef OPENSSL_NO_SHA256
226 	{ FUNC_TYPE_MD, "sha256", dgst_main },
227 #endif
228 #ifndef OPENSSL_NO_SHA384
229 	{ FUNC_TYPE_MD, "sha384", dgst_main },
230 #endif
231 #ifndef OPENSSL_NO_SHA512
232 	{ FUNC_TYPE_MD, "sha512", dgst_main },
233 #endif
234 #ifndef OPENSSL_NO_SM3
235 	{ FUNC_TYPE_MD, "sm3", dgst_main },
236 	{ FUNC_TYPE_MD, "sm3WithRSAEncryption", dgst_main },
237 #endif
238 #ifndef OPENSSL_NO_WHIRLPOOL
239 	{ FUNC_TYPE_MD, "whirlpool", dgst_main },
240 #endif
241 
242 	/* Ciphers. */
243 	{ FUNC_TYPE_CIPHER, "base64", enc_main },
244 #ifndef OPENSSL_NO_AES
245 	{ FUNC_TYPE_CIPHER, "aes-128-cbc", enc_main },
246 	{ FUNC_TYPE_CIPHER, "aes-128-ecb", enc_main },
247 	{ FUNC_TYPE_CIPHER, "aes-192-cbc", enc_main },
248 	{ FUNC_TYPE_CIPHER, "aes-192-ecb", enc_main },
249 	{ FUNC_TYPE_CIPHER, "aes-256-cbc", enc_main },
250 	{ FUNC_TYPE_CIPHER, "aes-256-ecb", enc_main },
251 #endif
252 #ifndef OPENSSL_NO_BF
253 	{ FUNC_TYPE_CIPHER, "bf", enc_main },
254 	{ FUNC_TYPE_CIPHER, "bf-cbc", enc_main },
255 	{ FUNC_TYPE_CIPHER, "bf-ecb", enc_main },
256 	{ FUNC_TYPE_CIPHER, "bf-cfb", enc_main },
257 	{ FUNC_TYPE_CIPHER, "bf-ofb", enc_main },
258 #endif
259 #ifndef OPENSSL_NO_CAMELLIA
260 	{ FUNC_TYPE_CIPHER, "camellia-128-cbc", enc_main },
261 	{ FUNC_TYPE_CIPHER, "camellia-128-ecb", enc_main },
262 	{ FUNC_TYPE_CIPHER, "camellia-192-cbc", enc_main },
263 	{ FUNC_TYPE_CIPHER, "camellia-192-ecb", enc_main },
264 	{ FUNC_TYPE_CIPHER, "camellia-256-cbc", enc_main },
265 	{ FUNC_TYPE_CIPHER, "camellia-256-ecb", enc_main },
266 #endif
267 #ifndef OPENSSL_NO_CAST
268 	{ FUNC_TYPE_CIPHER, "cast", enc_main },
269 	{ FUNC_TYPE_CIPHER, "cast5-cbc", enc_main },
270 	{ FUNC_TYPE_CIPHER, "cast5-ecb", enc_main },
271 	{ FUNC_TYPE_CIPHER, "cast5-cfb", enc_main },
272 	{ FUNC_TYPE_CIPHER, "cast5-ofb", enc_main },
273 	{ FUNC_TYPE_CIPHER, "cast-cbc", enc_main },
274 #endif
275 #ifndef OPENSSL_NO_CHACHA
276 	{ FUNC_TYPE_CIPHER, "chacha", enc_main },
277 #endif
278 #ifndef OPENSSL_NO_DES
279 	{ FUNC_TYPE_CIPHER, "des", enc_main },
280 	{ FUNC_TYPE_CIPHER, "des3", enc_main },
281 	{ FUNC_TYPE_CIPHER, "desx", enc_main },
282 	{ FUNC_TYPE_CIPHER, "des-ecb", enc_main },
283 	{ FUNC_TYPE_CIPHER, "des-ede", enc_main },
284 	{ FUNC_TYPE_CIPHER, "des-ede3", enc_main },
285 	{ FUNC_TYPE_CIPHER, "des-cbc", enc_main },
286 	{ FUNC_TYPE_CIPHER, "des-ede-cbc", enc_main },
287 	{ FUNC_TYPE_CIPHER, "des-ede3-cbc", enc_main },
288 	{ FUNC_TYPE_CIPHER, "des-cfb", enc_main },
289 	{ FUNC_TYPE_CIPHER, "des-ede-cfb", enc_main },
290 	{ FUNC_TYPE_CIPHER, "des-ede3-cfb", enc_main },
291 	{ FUNC_TYPE_CIPHER, "des-ofb", enc_main },
292 	{ FUNC_TYPE_CIPHER, "des-ede-ofb", enc_main },
293 	{ FUNC_TYPE_CIPHER, "des-ede3-ofb", enc_main },
294 #endif
295 #ifndef OPENSSL_NO_IDEA
296 	{ FUNC_TYPE_CIPHER, "idea", enc_main },
297 	{ FUNC_TYPE_CIPHER, "idea-cbc", enc_main },
298 	{ FUNC_TYPE_CIPHER, "idea-ecb", enc_main },
299 	{ FUNC_TYPE_CIPHER, "idea-cfb", enc_main },
300 	{ FUNC_TYPE_CIPHER, "idea-ofb", enc_main },
301 #endif
302 #ifndef OPENSSL_NO_RC2
303 	{ FUNC_TYPE_CIPHER, "rc2", enc_main },
304 	{ FUNC_TYPE_CIPHER, "rc2-cbc", enc_main },
305 	{ FUNC_TYPE_CIPHER, "rc2-ecb", enc_main },
306 	{ FUNC_TYPE_CIPHER, "rc2-cfb", enc_main },
307 	{ FUNC_TYPE_CIPHER, "rc2-ofb", enc_main },
308 	{ FUNC_TYPE_CIPHER, "rc2-64-cbc", enc_main },
309 	{ FUNC_TYPE_CIPHER, "rc2-40-cbc", enc_main },
310 #endif
311 #ifndef OPENSSL_NO_RC4
312 	{ FUNC_TYPE_CIPHER, "rc4", enc_main },
313 	{ FUNC_TYPE_CIPHER, "rc4-40", enc_main },
314 #endif
315 #ifndef OPENSSL_NO_SM4
316 	{ FUNC_TYPE_CIPHER, "sm4", enc_main },
317 	{ FUNC_TYPE_CIPHER, "sm4-ecb", enc_main },
318 	{ FUNC_TYPE_CIPHER, "sm4-cbc", enc_main },
319 	{ FUNC_TYPE_CIPHER, "sm4-ofb", enc_main },
320 	{ FUNC_TYPE_CIPHER, "sm4-cfb", enc_main },
321 #endif
322 	{ 0, NULL, NULL }
323 };
324 
325 static void openssl_startup(void);
326 static void openssl_shutdown(void);
327 
328 /* The LHASH callbacks ("hash" & "cmp") have been replaced by functions with the
329  * base prototypes (we cast each variable inside the function to the required
330  * type of "FUNCTION*"). This removes the necessity for macro-generated wrapper
331  * functions. */
332 
333 static LHASH_OF(FUNCTION) *prog_init(void);
334 static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[]);
335 static void print_help(void);
336 static void list_pkey(BIO * out);
337 static void list_cipher(BIO * out);
338 static void list_md(BIO * out);
339 char *default_config_file = NULL;
340 
341 CONF *config = NULL;
342 BIO *bio_err = NULL;
343 
344 static void
openssl_startup(void)345 openssl_startup(void)
346 {
347 	signal(SIGPIPE, SIG_IGN);
348 
349 	OpenSSL_add_all_algorithms();
350 	SSL_library_init();
351 	SSL_load_error_strings();
352 
353 	setup_ui();
354 }
355 
356 static void
openssl_shutdown(void)357 openssl_shutdown(void)
358 {
359 	CONF_modules_unload(1);
360 	destroy_ui();
361 	OBJ_cleanup();
362 	EVP_cleanup();
363 	CRYPTO_cleanup_all_ex_data();
364 	ERR_remove_thread_state(NULL);
365 	ERR_free_strings();
366 }
367 
368 int
main(int argc,char ** argv)369 main(int argc, char **argv)
370 {
371 	char *to_free = NULL;
372 	int i, ret = 0;
373 	char *p;
374 	LHASH_OF(FUNCTION) * prog = NULL;
375 	long errline;
376 
377 	if (pledge("stdio cpath wpath rpath inet dns proc flock tty", NULL) == -1) {
378 		fprintf(stderr, "openssl: pledge: %s\n", strerror(errno));
379 		exit(1);
380 	}
381 
382 	bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
383 	if (bio_err == NULL) {
384 		fprintf(stderr, "openssl: failed to initialise bio_err\n");
385 		exit(1);
386 	}
387 
388 	if (BIO_sock_init() != 1) {
389 		BIO_printf(bio_err, "BIO_sock_init failed\n");
390 		exit(1);
391 	}
392 
393 	openssl_startup();
394 
395 	/* Lets load up our environment a little */
396 	p = getenv("OPENSSL_CONF");
397 	if (p == NULL) {
398 		p = to_free = make_config_name();
399 		if (p == NULL) {
400 			BIO_printf(bio_err, "error making config file name\n");
401 			goto end;
402 		}
403 	}
404 
405 	default_config_file = p;
406 
407 	config = NCONF_new(NULL);
408 	i = NCONF_load(config, p, &errline);
409 	if (i == 0) {
410 		if (ERR_GET_REASON(ERR_peek_last_error()) ==
411 		    CONF_R_NO_SUCH_FILE) {
412 			BIO_printf(bio_err,
413 			    "WARNING: can't open config file: %s\n", p);
414 			ERR_clear_error();
415 			NCONF_free(config);
416 			config = NULL;
417 		} else {
418 			ERR_print_errors(bio_err);
419 			NCONF_free(config);
420 			exit(1);
421 		}
422 	}
423 
424 	if (!load_config(bio_err, NULL)) {
425 		BIO_printf(bio_err, "failed to load configuration\n");
426 		goto end;
427 	}
428 
429 	prog = prog_init();
430 
431 	/*
432 	 * ok, now check that there are not arguments, if there are, run with
433 	 * them, shifting the executable name off the front
434 	 */
435 	argc--;
436 	argv++;
437 
438 	if (argc < 1) {
439 		print_help();
440 		goto end;
441 	}
442 
443 	ret = do_cmd(prog, argc, argv);
444 	if (ret < 0)
445 		ret = 0;
446 
447  end:
448 	free(to_free);
449 
450 	if (config != NULL) {
451 		NCONF_free(config);
452 		config = NULL;
453 	}
454 	if (prog != NULL)
455 		lh_FUNCTION_free(prog);
456 
457 	openssl_shutdown();
458 
459 	if (bio_err != NULL) {
460 		BIO_free(bio_err);
461 		bio_err = NULL;
462 	}
463 	return (ret);
464 }
465 
466 #define LIST_STANDARD_COMMANDS "list-standard-commands"
467 #define LIST_MESSAGE_DIGEST_COMMANDS "list-message-digest-commands"
468 #define LIST_MESSAGE_DIGEST_ALGORITHMS "list-message-digest-algorithms"
469 #define LIST_CIPHER_COMMANDS "list-cipher-commands"
470 #define LIST_CIPHER_ALGORITHMS "list-cipher-algorithms"
471 #define LIST_PUBLIC_KEY_ALGORITHMS "list-public-key-algorithms"
472 
473 
474 static int
do_cmd(LHASH_OF (FUNCTION)* prog,int argc,char * argv[])475 do_cmd(LHASH_OF(FUNCTION) * prog, int argc, char *argv[])
476 {
477 	FUNCTION f, *fp;
478 	int ret = 1;
479 
480 	if (argc <= 0 || argv[0] == NULL)
481 		return 0;
482 
483 	f.name = argv[0];
484 	fp = lh_FUNCTION_retrieve(prog, &f);
485 	if (fp == NULL) {
486 		if (EVP_get_digestbyname(argv[0])) {
487 			f.type = FUNC_TYPE_MD;
488 			f.func = dgst_main;
489 			fp = &f;
490 		} else if (EVP_get_cipherbyname(argv[0])) {
491 			f.type = FUNC_TYPE_CIPHER;
492 			f.func = enc_main;
493 			fp = &f;
494 		}
495 	}
496 
497 	if (fp != NULL)
498 		return fp->func(argc, argv);
499 
500 	if (strcmp(argv[0], "help") == 0) {
501 		print_help();
502 		return 0;
503 	}
504 
505 	if ((strncmp(argv[0], "no-", 3)) == 0) {
506 		BIO *bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE);
507 		f.name = argv[0] + 3;
508 		ret = (lh_FUNCTION_retrieve(prog, &f) != NULL);
509 		if (!ret)
510 			BIO_printf(bio_stdout, "%s\n", argv[0]);
511 		else
512 			BIO_printf(bio_stdout, "%s\n", argv[0] + 3);
513 		BIO_free_all(bio_stdout);
514 		return ret;
515 	}
516 
517 	if ((strcmp(argv[0], LIST_STANDARD_COMMANDS) == 0) ||
518 	    (strcmp(argv[0], LIST_MESSAGE_DIGEST_COMMANDS) == 0) ||
519 	    (strcmp(argv[0], LIST_MESSAGE_DIGEST_ALGORITHMS) == 0) ||
520 	    (strcmp(argv[0], LIST_CIPHER_COMMANDS) == 0) ||
521 	    (strcmp(argv[0], LIST_CIPHER_ALGORITHMS) == 0) ||
522 	    (strcmp(argv[0], LIST_PUBLIC_KEY_ALGORITHMS) == 0)) {
523 		int list_type;
524 		BIO *bio_stdout;
525 
526 		if (strcmp(argv[0], LIST_STANDARD_COMMANDS) == 0)
527 			list_type = FUNC_TYPE_GENERAL;
528 		else if (strcmp(argv[0], LIST_MESSAGE_DIGEST_COMMANDS) == 0)
529 			list_type = FUNC_TYPE_MD;
530 		else if (strcmp(argv[0], LIST_MESSAGE_DIGEST_ALGORITHMS) == 0)
531 			list_type = FUNC_TYPE_MD_ALG;
532 		else if (strcmp(argv[0], LIST_PUBLIC_KEY_ALGORITHMS) == 0)
533 			list_type = FUNC_TYPE_PKEY;
534 		else if (strcmp(argv[0], LIST_CIPHER_ALGORITHMS) == 0)
535 			list_type = FUNC_TYPE_CIPHER_ALG;
536 		else		/* strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0 */
537 			list_type = FUNC_TYPE_CIPHER;
538 		bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE);
539 
540 		if (list_type == FUNC_TYPE_PKEY)
541 			list_pkey(bio_stdout);
542 		if (list_type == FUNC_TYPE_MD_ALG)
543 			list_md(bio_stdout);
544 		if (list_type == FUNC_TYPE_CIPHER_ALG)
545 			list_cipher(bio_stdout);
546 		else {
547 			for (fp = functions; fp->name != NULL; fp++)
548 				if (fp->type == list_type)
549 					BIO_printf(bio_stdout, "%s\n",
550 					    fp->name);
551 		}
552 		BIO_free_all(bio_stdout);
553 		return 0;
554 	}
555 
556 	BIO_printf(bio_err,
557 	    "openssl:Error: '%s' is an invalid command.\n",
558 	    argv[0]);
559 	print_help();
560 
561 	return 1;
562 }
563 
564 static void
print_help(void)565 print_help(void)
566 {
567 	FUNCTION *fp;
568 	int i = 0;
569 	int tp = 0;
570 	int nl;
571 
572 	BIO_printf(bio_err, "\nStandard commands");
573 	for (fp = functions; fp->name != NULL; fp++) {
574 		nl = 0;
575 #ifdef OPENSSL_NO_CAMELLIA
576 		if (((i++) % 5) == 0)
577 #else
578 		if (((i++) % 4) == 0)
579 #endif
580 		{
581 			BIO_printf(bio_err, "\n");
582 			nl = 1;
583 		}
584 		if (fp->type != tp) {
585 			tp = fp->type;
586 			if (!nl)
587 				BIO_printf(bio_err, "\n");
588 			if (tp == FUNC_TYPE_MD) {
589 				i = 1;
590 				BIO_printf(bio_err,
591 				    "\nMessage Digest commands (see the `dgst' command for more details)\n");
592 			} else if (tp == FUNC_TYPE_CIPHER) {
593 				i = 1;
594 				BIO_printf(bio_err, "\nCipher commands (see the `enc' command for more details)\n");
595 			}
596 		}
597 #ifdef OPENSSL_NO_CAMELLIA
598 		BIO_printf(bio_err, "%-15s", fp->name);
599 #else
600 		BIO_printf(bio_err, "%-18s", fp->name);
601 #endif
602 	}
603 
604 	BIO_printf(bio_err, "\n\n");
605 }
606 
607 static int
SortFnByName(const void * _f1,const void * _f2)608 SortFnByName(const void *_f1, const void *_f2)
609 {
610 	const FUNCTION *f1 = _f1;
611 	const FUNCTION *f2 = _f2;
612 
613 	if (f1->type != f2->type)
614 		return f1->type - f2->type;
615 	return strcmp(f1->name, f2->name);
616 }
617 
618 static void
list_pkey(BIO * out)619 list_pkey(BIO * out)
620 {
621 	int i;
622 
623 	for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
624 		const EVP_PKEY_ASN1_METHOD *ameth;
625 		int pkey_id, pkey_base_id, pkey_flags;
626 		const char *pinfo, *pem_str;
627 		ameth = EVP_PKEY_asn1_get0(i);
628 		EVP_PKEY_asn1_get0_info(&pkey_id, &pkey_base_id, &pkey_flags,
629 		    &pinfo, &pem_str, ameth);
630 		if (pkey_flags & ASN1_PKEY_ALIAS) {
631 			BIO_printf(out, "Name: %s\n",
632 			    OBJ_nid2ln(pkey_id));
633 			BIO_printf(out, "\tType: Alias to %s\n",
634 			    OBJ_nid2ln(pkey_base_id));
635 		} else {
636 			BIO_printf(out, "Name: %s\n", pinfo);
637 			BIO_printf(out, "\tType: %s Algorithm\n",
638 			    pkey_flags & ASN1_PKEY_DYNAMIC ?
639 			    "External" : "Builtin");
640 			BIO_printf(out, "\tOID: %s\n", OBJ_nid2ln(pkey_id));
641 			if (pem_str == NULL)
642 				pem_str = "(none)";
643 			BIO_printf(out, "\tPEM string: %s\n", pem_str);
644 		}
645 
646 	}
647 }
648 
649 static void
list_cipher_fn(const EVP_CIPHER * c,const char * from,const char * to,void * arg)650 list_cipher_fn(const EVP_CIPHER * c, const char *from, const char *to,
651     void *arg)
652 {
653 	if (c)
654 		BIO_printf(arg, "%s\n", EVP_CIPHER_name(c));
655 	else {
656 		if (!from)
657 			from = "<undefined>";
658 		if (!to)
659 			to = "<undefined>";
660 		BIO_printf(arg, "%s => %s\n", from, to);
661 	}
662 }
663 
664 static void
list_cipher(BIO * out)665 list_cipher(BIO * out)
666 {
667 	EVP_CIPHER_do_all_sorted(list_cipher_fn, out);
668 }
669 
670 static void
list_md_fn(const EVP_MD * m,const char * from,const char * to,void * arg)671 list_md_fn(const EVP_MD * m, const char *from, const char *to, void *arg)
672 {
673 	if (m)
674 		BIO_printf(arg, "%s\n", EVP_MD_name(m));
675 	else {
676 		if (!from)
677 			from = "<undefined>";
678 		if (!to)
679 			to = "<undefined>";
680 		BIO_printf(arg, "%s => %s\n", from, to);
681 	}
682 }
683 
684 static void
list_md(BIO * out)685 list_md(BIO * out)
686 {
687 	EVP_MD_do_all_sorted(list_md_fn, out);
688 }
689 
690 static int
function_cmp(const FUNCTION * a,const FUNCTION * b)691 function_cmp(const FUNCTION * a, const FUNCTION * b)
692 {
693 	return strncmp(a->name, b->name, 8);
694 }
695 
IMPLEMENT_LHASH_COMP_FN(function,FUNCTION)696 static IMPLEMENT_LHASH_COMP_FN(function, FUNCTION)
697 
698 static unsigned long
699 function_hash(const FUNCTION * a)
700 {
701 	return lh_strhash(a->name);
702 }
703 
IMPLEMENT_LHASH_HASH_FN(function,FUNCTION)704 static IMPLEMENT_LHASH_HASH_FN(function, FUNCTION)
705 
706 static LHASH_OF(FUNCTION) *
707 prog_init(void)
708 {
709 	LHASH_OF(FUNCTION) * ret;
710 	FUNCTION *f;
711 	size_t i;
712 
713 	/* Purely so it looks nice when the user hits ? */
714 	for (i = 0, f = functions; f->name != NULL; ++f, ++i)
715 		;
716 	qsort(functions, i, sizeof *functions, SortFnByName);
717 
718 	if ((ret = lh_FUNCTION_new()) == NULL)
719 		return (NULL);
720 
721 	for (f = functions; f->name != NULL; f++)
722 		(void) lh_FUNCTION_insert(ret, f);
723 	return (ret);
724 }
725