1 /* $OpenBSD: openssl.c,v 1.29 2019/03/17 17:46:00 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 #include "progs.h"
131 #include "s_apps.h"
132 
133 #define FUNC_TYPE_GENERAL       1
134 #define FUNC_TYPE_MD            2
135 #define FUNC_TYPE_CIPHER        3
136 #define FUNC_TYPE_PKEY          4
137 #define FUNC_TYPE_MD_ALG        5
138 #define FUNC_TYPE_CIPHER_ALG    6
139 
140 int single_execution = 0;
141 
142 typedef struct {
143         int type;
144         const char *name;
145         int (*func)(int argc, char **argv);
146 } FUNCTION;
147 
148 DECLARE_LHASH_OF(FUNCTION);
149 
150 FUNCTION functions[] = {
151 
152 	/* General functions. */
153 	{ FUNC_TYPE_GENERAL, "asn1parse", asn1parse_main },
154 	{ FUNC_TYPE_GENERAL, "ca", ca_main },
155 	{ FUNC_TYPE_GENERAL, "certhash", certhash_main },
156 	{ FUNC_TYPE_GENERAL, "ciphers", ciphers_main },
157 	{ FUNC_TYPE_GENERAL, "crl2pkcs7", crl2pkcs7_main },
158 	{ FUNC_TYPE_GENERAL, "crl", crl_main },
159 	{ FUNC_TYPE_GENERAL, "dgst", dgst_main },
160 	{ FUNC_TYPE_GENERAL, "enc", enc_main },
161 	{ FUNC_TYPE_GENERAL, "errstr", errstr_main },
162 	{ FUNC_TYPE_GENERAL, "genpkey", genpkey_main },
163 	{ FUNC_TYPE_GENERAL, "nseq", nseq_main },
164 #ifndef OPENSSL_NO_OCSP
165 	{ FUNC_TYPE_GENERAL, "ocsp", ocsp_main },
166 #endif
167 	{ FUNC_TYPE_GENERAL, "passwd", passwd_main },
168 	{ FUNC_TYPE_GENERAL, "pkcs7", pkcs7_main },
169 	{ FUNC_TYPE_GENERAL, "pkcs8", pkcs8_main },
170 #if !defined(OPENSSL_NO_DES) && !defined(OPENSSL_NO_SHA1)
171 	{ FUNC_TYPE_GENERAL, "pkcs12", pkcs12_main },
172 #endif
173 	{ FUNC_TYPE_GENERAL, "pkey", pkey_main },
174 	{ FUNC_TYPE_GENERAL, "pkeyparam", pkeyparam_main },
175 	{ FUNC_TYPE_GENERAL, "pkeyutl", pkeyutl_main },
176 	{ FUNC_TYPE_GENERAL, "prime", prime_main },
177 	{ FUNC_TYPE_GENERAL, "rand", rand_main },
178 	{ FUNC_TYPE_GENERAL, "req", req_main },
179 	{ FUNC_TYPE_GENERAL, "s_client", s_client_main },
180 	{ FUNC_TYPE_GENERAL, "s_server", s_server_main },
181 	{ FUNC_TYPE_GENERAL, "s_time", s_time_main },
182 	{ FUNC_TYPE_GENERAL, "sess_id", sess_id_main },
183 	{ FUNC_TYPE_GENERAL, "smime", smime_main },
184 #ifndef OPENSSL_NO_SPEED
185 	{ FUNC_TYPE_GENERAL, "speed", speed_main },
186 #endif
187 	{ FUNC_TYPE_GENERAL, "spkac", spkac_main },
188 	{ FUNC_TYPE_GENERAL, "ts", ts_main },
189 	{ FUNC_TYPE_GENERAL, "verify", verify_main },
190 	{ FUNC_TYPE_GENERAL, "version", version_main },
191 	{ FUNC_TYPE_GENERAL, "x509", x509_main },
192 
193 #ifndef OPENSSL_NO_DH
194 	{ FUNC_TYPE_GENERAL, "dh", dh_main },
195 	{ FUNC_TYPE_GENERAL, "dhparam", dhparam_main },
196 	{ FUNC_TYPE_GENERAL, "gendh", gendh_main },
197 #endif
198 #ifndef OPENSSL_NO_DSA
199 	{ FUNC_TYPE_GENERAL, "dsa", dsa_main },
200 	{ FUNC_TYPE_GENERAL, "dsaparam", dsaparam_main },
201 	{ FUNC_TYPE_GENERAL, "gendsa", gendsa_main },
202 #endif
203 #ifndef OPENSSL_NO_EC
204 	{ FUNC_TYPE_GENERAL, "ec", ec_main },
205 	{ FUNC_TYPE_GENERAL, "ecparam", ecparam_main },
206 #endif
207 #ifndef OPENSSL_NO_RSA
208 	{ FUNC_TYPE_GENERAL, "genrsa", genrsa_main },
209 	{ FUNC_TYPE_GENERAL, "rsa", rsa_main },
210 	{ FUNC_TYPE_GENERAL, "rsautl", rsautl_main },
211 #endif
212 
213 	/* Message Digests. */
214 #ifndef OPENSSL_NO_GOST
215 	{ FUNC_TYPE_MD, "gost-mac", dgst_main },
216 	{ FUNC_TYPE_MD, "md_gost94", dgst_main },
217 	{ FUNC_TYPE_MD, "streebog256", dgst_main },
218 	{ FUNC_TYPE_MD, "streebog512", dgst_main },
219 #endif
220 #ifndef OPENSSL_NO_MD4
221 	{ FUNC_TYPE_MD, "md4", dgst_main },
222 #endif
223 #ifndef OPENSSL_NO_MD5
224 	{ FUNC_TYPE_MD, "md5", dgst_main },
225 #endif
226 #ifndef OPENSSL_NO_RIPEMD160
227 	{ FUNC_TYPE_MD, "ripemd160", dgst_main },
228 #endif
229 #ifndef OPENSSL_NO_SHA1
230 	{ FUNC_TYPE_MD, "sha1", dgst_main },
231 #endif
232 #ifndef OPENSSL_NO_SHA224
233 	{ FUNC_TYPE_MD, "sha224", dgst_main },
234 #endif
235 #ifndef OPENSSL_NO_SHA256
236 	{ FUNC_TYPE_MD, "sha256", dgst_main },
237 #endif
238 #ifndef OPENSSL_NO_SHA384
239 	{ FUNC_TYPE_MD, "sha384", dgst_main },
240 #endif
241 #ifndef OPENSSL_NO_SHA512
242 	{ FUNC_TYPE_MD, "sha512", dgst_main },
243 #endif
244 #ifndef OPENSSL_NO_SM3
245 	{ FUNC_TYPE_MD, "sm3", dgst_main },
246 	{ FUNC_TYPE_MD, "sm3WithRSAEncryption", dgst_main },
247 #endif
248 #ifndef OPENSSL_NO_WHIRLPOOL
249 	{ FUNC_TYPE_MD, "whirlpool", dgst_main },
250 #endif
251 
252 	/* Ciphers. */
253 	{ FUNC_TYPE_CIPHER, "base64", enc_main },
254 #ifndef OPENSSL_NO_AES
255 	{ FUNC_TYPE_CIPHER, "aes-128-cbc", enc_main },
256 	{ FUNC_TYPE_CIPHER, "aes-128-ecb", enc_main },
257 	{ FUNC_TYPE_CIPHER, "aes-192-cbc", enc_main },
258 	{ FUNC_TYPE_CIPHER, "aes-192-ecb", enc_main },
259 	{ FUNC_TYPE_CIPHER, "aes-256-cbc", enc_main },
260 	{ FUNC_TYPE_CIPHER, "aes-256-ecb", enc_main },
261 #endif
262 #ifndef OPENSSL_NO_BF
263 	{ FUNC_TYPE_CIPHER, "bf", enc_main },
264 	{ FUNC_TYPE_CIPHER, "bf-cbc", enc_main },
265 	{ FUNC_TYPE_CIPHER, "bf-ecb", enc_main },
266 	{ FUNC_TYPE_CIPHER, "bf-cfb", enc_main },
267 	{ FUNC_TYPE_CIPHER, "bf-ofb", enc_main },
268 #endif
269 #ifndef OPENSSL_NO_CAMELLIA
270 	{ FUNC_TYPE_CIPHER, "camellia-128-cbc", enc_main },
271 	{ FUNC_TYPE_CIPHER, "camellia-128-ecb", enc_main },
272 	{ FUNC_TYPE_CIPHER, "camellia-192-cbc", enc_main },
273 	{ FUNC_TYPE_CIPHER, "camellia-192-ecb", enc_main },
274 	{ FUNC_TYPE_CIPHER, "camellia-256-cbc", enc_main },
275 	{ FUNC_TYPE_CIPHER, "camellia-256-ecb", enc_main },
276 #endif
277 #ifndef OPENSSL_NO_CAST
278 	{ FUNC_TYPE_CIPHER, "cast", enc_main },
279 	{ FUNC_TYPE_CIPHER, "cast5-cbc", enc_main },
280 	{ FUNC_TYPE_CIPHER, "cast5-ecb", enc_main },
281 	{ FUNC_TYPE_CIPHER, "cast5-cfb", enc_main },
282 	{ FUNC_TYPE_CIPHER, "cast5-ofb", enc_main },
283 	{ FUNC_TYPE_CIPHER, "cast-cbc", enc_main },
284 #endif
285 #ifndef OPENSSL_NO_CHACHA
286 	{ FUNC_TYPE_CIPHER, "chacha", enc_main },
287 #endif
288 #ifndef OPENSSL_NO_DES
289 	{ FUNC_TYPE_CIPHER, "des", enc_main },
290 	{ FUNC_TYPE_CIPHER, "des3", enc_main },
291 	{ FUNC_TYPE_CIPHER, "desx", enc_main },
292 	{ FUNC_TYPE_CIPHER, "des-ecb", enc_main },
293 	{ FUNC_TYPE_CIPHER, "des-ede", enc_main },
294 	{ FUNC_TYPE_CIPHER, "des-ede3", enc_main },
295 	{ FUNC_TYPE_CIPHER, "des-cbc", enc_main },
296 	{ FUNC_TYPE_CIPHER, "des-ede-cbc", enc_main },
297 	{ FUNC_TYPE_CIPHER, "des-ede3-cbc", enc_main },
298 	{ FUNC_TYPE_CIPHER, "des-cfb", enc_main },
299 	{ FUNC_TYPE_CIPHER, "des-ede-cfb", enc_main },
300 	{ FUNC_TYPE_CIPHER, "des-ede3-cfb", enc_main },
301 	{ FUNC_TYPE_CIPHER, "des-ofb", enc_main },
302 	{ FUNC_TYPE_CIPHER, "des-ede-ofb", enc_main },
303 	{ FUNC_TYPE_CIPHER, "des-ede3-ofb", enc_main },
304 #endif
305 #ifndef OPENSSL_NO_IDEA
306 	{ FUNC_TYPE_CIPHER, "idea", enc_main },
307 	{ FUNC_TYPE_CIPHER, "idea-cbc", enc_main },
308 	{ FUNC_TYPE_CIPHER, "idea-ecb", enc_main },
309 	{ FUNC_TYPE_CIPHER, "idea-cfb", enc_main },
310 	{ FUNC_TYPE_CIPHER, "idea-ofb", enc_main },
311 #endif
312 #ifndef OPENSSL_NO_RC2
313 	{ FUNC_TYPE_CIPHER, "rc2", enc_main },
314 	{ FUNC_TYPE_CIPHER, "rc2-cbc", enc_main },
315 	{ FUNC_TYPE_CIPHER, "rc2-ecb", enc_main },
316 	{ FUNC_TYPE_CIPHER, "rc2-cfb", enc_main },
317 	{ FUNC_TYPE_CIPHER, "rc2-ofb", enc_main },
318 	{ FUNC_TYPE_CIPHER, "rc2-64-cbc", enc_main },
319 	{ FUNC_TYPE_CIPHER, "rc2-40-cbc", enc_main },
320 #endif
321 #ifndef OPENSSL_NO_RC4
322 	{ FUNC_TYPE_CIPHER, "rc4", enc_main },
323 	{ FUNC_TYPE_CIPHER, "rc4-40", enc_main },
324 #endif
325 #ifndef OPENSSL_NO_SM4
326 	{ FUNC_TYPE_CIPHER, "sm4", enc_main },
327 	{ FUNC_TYPE_CIPHER, "sm4-ecb", enc_main },
328 	{ FUNC_TYPE_CIPHER, "sm4-cbc", enc_main },
329 	{ FUNC_TYPE_CIPHER, "sm4-ofb", enc_main },
330 	{ FUNC_TYPE_CIPHER, "sm4-cfb", enc_main },
331 #endif
332 #ifdef ZLIB
333 	{ FUNC_TYPE_CIPHER, "zlib", enc_main },
334 #endif
335 
336 	{ 0, NULL, NULL }
337 };
338 
339 static void openssl_startup(void);
340 static void openssl_shutdown(void);
341 
342 /* The LHASH callbacks ("hash" & "cmp") have been replaced by functions with the
343  * base prototypes (we cast each variable inside the function to the required
344  * type of "FUNCTION*"). This removes the necessity for macro-generated wrapper
345  * functions. */
346 
347 static LHASH_OF(FUNCTION) *prog_init(void);
348 static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[]);
349 static void list_pkey(BIO * out);
350 static void list_cipher(BIO * out);
351 static void list_md(BIO * out);
352 char *default_config_file = NULL;
353 
354 CONF *config = NULL;
355 BIO *bio_err = NULL;
356 
357 static void
358 openssl_startup(void)
359 {
360 #ifndef _WIN32
361 	signal(SIGPIPE, SIG_IGN);
362 #endif
363 
364 	OpenSSL_add_all_algorithms();
365 	SSL_library_init();
366 	SSL_load_error_strings();
367 
368 	setup_ui();
369 }
370 
371 static void
372 openssl_shutdown(void)
373 {
374 	CONF_modules_unload(1);
375 	destroy_ui();
376 	OBJ_cleanup();
377 	EVP_cleanup();
378 	CRYPTO_cleanup_all_ex_data();
379 	ERR_remove_thread_state(NULL);
380 	ERR_free_strings();
381 }
382 
383 int
384 main(int argc, char **argv)
385 {
386 	ARGS arg;
387 #define PROG_NAME_SIZE	39
388 	char pname[PROG_NAME_SIZE + 1];
389 	FUNCTION f, *fp;
390 	const char *prompt;
391 	char buf[1024];
392 	char *to_free = NULL;
393 	int n, i, ret = 0;
394 	char *p;
395 	LHASH_OF(FUNCTION) * prog = NULL;
396 	long errline;
397 
398 	arg.data = NULL;
399 	arg.count = 0;
400 
401 	if (pledge("stdio cpath wpath rpath inet dns proc flock tty", NULL) == -1) {
402 		fprintf(stderr, "openssl: pledge: %s\n", strerror(errno));
403 		exit(1);
404 	}
405 
406 	bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
407 	if (bio_err == NULL) {
408 		fprintf(stderr, "openssl: failed to initialise bio_err\n");
409 		exit(1);
410 	}
411 
412 	if (BIO_sock_init() != 1) {
413 		BIO_printf(bio_err, "BIO_sock_init failed\n");
414 		exit(1);
415 	}
416 
417 	openssl_startup();
418 
419 	/* Lets load up our environment a little */
420 	p = getenv("OPENSSL_CONF");
421 	if (p == NULL) {
422 		p = to_free = make_config_name();
423 		if (p == NULL) {
424 			BIO_printf(bio_err, "error making config file name\n");
425 			goto end;
426 		}
427 	}
428 
429 	default_config_file = p;
430 
431 	config = NCONF_new(NULL);
432 	i = NCONF_load(config, p, &errline);
433 	if (i == 0) {
434 		if (ERR_GET_REASON(ERR_peek_last_error()) ==
435 		    CONF_R_NO_SUCH_FILE) {
436 			BIO_printf(bio_err,
437 			    "WARNING: can't open config file: %s\n", p);
438 			ERR_clear_error();
439 			NCONF_free(config);
440 			config = NULL;
441 		} else {
442 			ERR_print_errors(bio_err);
443 			NCONF_free(config);
444 			exit(1);
445 		}
446 	}
447 
448 	if (!load_config(bio_err, NULL)) {
449 		BIO_printf(bio_err, "failed to load configuration\n");
450 		goto end;
451 	}
452 
453 	prog = prog_init();
454 
455 	/* first check the program name */
456 	program_name(argv[0], pname, sizeof pname);
457 
458 	f.name = pname;
459 	fp = lh_FUNCTION_retrieve(prog, &f);
460 	if (fp != NULL) {
461 		argv[0] = pname;
462 
463 		single_execution = 1;
464 		ret = fp->func(argc, argv);
465 		goto end;
466 	}
467 	/*
468 	 * ok, now check that there are not arguments, if there are, run with
469 	 * them, shifting the ssleay off the front
470 	 */
471 	if (argc != 1) {
472 		argc--;
473 		argv++;
474 
475 		single_execution = 1;
476 		ret = do_cmd(prog, argc, argv);
477 		if (ret < 0)
478 			ret = 0;
479 		goto end;
480 	}
481 	/* ok, lets enter the old 'OpenSSL>' mode */
482 
483 	for (;;) {
484 		ret = 0;
485 		p = buf;
486 		n = sizeof buf;
487 		i = 0;
488 		for (;;) {
489 			p[0] = '\0';
490 			if (i++)
491 				prompt = ">";
492 			else
493 				prompt = "OpenSSL> ";
494 			fputs(prompt, stdout);
495 			fflush(stdout);
496 			if (!fgets(p, n, stdin))
497 				goto end;
498 			if (p[0] == '\0')
499 				goto end;
500 			i = strlen(p);
501 			if (i <= 1)
502 				break;
503 			if (p[i - 2] != '\\')
504 				break;
505 			i -= 2;
506 			p += i;
507 			n -= i;
508 		}
509 		if (!chopup_args(&arg, buf, &argc, &argv))
510 			break;
511 
512 		ret = do_cmd(prog, argc, argv);
513 		if (ret < 0) {
514 			ret = 0;
515 			goto end;
516 		}
517 		if (ret != 0)
518 			BIO_printf(bio_err, "error in %s\n", argv[0]);
519 		(void) BIO_flush(bio_err);
520 	}
521 	BIO_printf(bio_err, "bad exit\n");
522 	ret = 1;
523 
524  end:
525 	free(to_free);
526 
527 	if (config != NULL) {
528 		NCONF_free(config);
529 		config = NULL;
530 	}
531 	if (prog != NULL)
532 		lh_FUNCTION_free(prog);
533 	free(arg.data);
534 
535 	openssl_shutdown();
536 
537 	if (bio_err != NULL) {
538 		BIO_free(bio_err);
539 		bio_err = NULL;
540 	}
541 	return (ret);
542 }
543 
544 #define LIST_STANDARD_COMMANDS "list-standard-commands"
545 #define LIST_MESSAGE_DIGEST_COMMANDS "list-message-digest-commands"
546 #define LIST_MESSAGE_DIGEST_ALGORITHMS "list-message-digest-algorithms"
547 #define LIST_CIPHER_COMMANDS "list-cipher-commands"
548 #define LIST_CIPHER_ALGORITHMS "list-cipher-algorithms"
549 #define LIST_PUBLIC_KEY_ALGORITHMS "list-public-key-algorithms"
550 
551 
552 static int
553 do_cmd(LHASH_OF(FUNCTION) * prog, int argc, char *argv[])
554 {
555 	FUNCTION f, *fp;
556 	int i, ret = 1, tp, nl;
557 
558 	if ((argc <= 0) || (argv[0] == NULL)) {
559 		ret = 0;
560 		goto end;
561 	}
562 	f.name = argv[0];
563 	fp = lh_FUNCTION_retrieve(prog, &f);
564 	if (fp == NULL) {
565 		if (EVP_get_digestbyname(argv[0])) {
566 			f.type = FUNC_TYPE_MD;
567 			f.func = dgst_main;
568 			fp = &f;
569 		} else if (EVP_get_cipherbyname(argv[0])) {
570 			f.type = FUNC_TYPE_CIPHER;
571 			f.func = enc_main;
572 			fp = &f;
573 		}
574 	}
575 	if (fp != NULL) {
576 		ret = fp->func(argc, argv);
577 	} else if ((strncmp(argv[0], "no-", 3)) == 0) {
578 		BIO *bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE);
579 		f.name = argv[0] + 3;
580 		ret = (lh_FUNCTION_retrieve(prog, &f) != NULL);
581 		if (!ret)
582 			BIO_printf(bio_stdout, "%s\n", argv[0]);
583 		else
584 			BIO_printf(bio_stdout, "%s\n", argv[0] + 3);
585 		BIO_free_all(bio_stdout);
586 		goto end;
587 	} else if ((strcmp(argv[0], "quit") == 0) ||
588 	    (strcmp(argv[0], "q") == 0) ||
589 	    (strcmp(argv[0], "exit") == 0) ||
590 	    (strcmp(argv[0], "bye") == 0)) {
591 		ret = -1;
592 		goto end;
593 	} else if ((strcmp(argv[0], LIST_STANDARD_COMMANDS) == 0) ||
594 	    (strcmp(argv[0], LIST_MESSAGE_DIGEST_COMMANDS) == 0) ||
595 	    (strcmp(argv[0], LIST_MESSAGE_DIGEST_ALGORITHMS) == 0) ||
596 	    (strcmp(argv[0], LIST_CIPHER_COMMANDS) == 0) ||
597 	    (strcmp(argv[0], LIST_CIPHER_ALGORITHMS) == 0) ||
598 	    (strcmp(argv[0], LIST_PUBLIC_KEY_ALGORITHMS) == 0)) {
599 		int list_type;
600 		BIO *bio_stdout;
601 
602 		if (strcmp(argv[0], LIST_STANDARD_COMMANDS) == 0)
603 			list_type = FUNC_TYPE_GENERAL;
604 		else if (strcmp(argv[0], LIST_MESSAGE_DIGEST_COMMANDS) == 0)
605 			list_type = FUNC_TYPE_MD;
606 		else if (strcmp(argv[0], LIST_MESSAGE_DIGEST_ALGORITHMS) == 0)
607 			list_type = FUNC_TYPE_MD_ALG;
608 		else if (strcmp(argv[0], LIST_PUBLIC_KEY_ALGORITHMS) == 0)
609 			list_type = FUNC_TYPE_PKEY;
610 		else if (strcmp(argv[0], LIST_CIPHER_ALGORITHMS) == 0)
611 			list_type = FUNC_TYPE_CIPHER_ALG;
612 		else		/* strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0 */
613 			list_type = FUNC_TYPE_CIPHER;
614 		bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE);
615 
616 		if (list_type == FUNC_TYPE_PKEY)
617 			list_pkey(bio_stdout);
618 		if (list_type == FUNC_TYPE_MD_ALG)
619 			list_md(bio_stdout);
620 		if (list_type == FUNC_TYPE_CIPHER_ALG)
621 			list_cipher(bio_stdout);
622 		else {
623 			for (fp = functions; fp->name != NULL; fp++)
624 				if (fp->type == list_type)
625 					BIO_printf(bio_stdout, "%s\n",
626 					    fp->name);
627 		}
628 		BIO_free_all(bio_stdout);
629 		ret = 0;
630 		goto end;
631 	} else {
632 		BIO_printf(bio_err,
633 		    "openssl:Error: '%s' is an invalid command.\n",
634 		    argv[0]);
635 		BIO_printf(bio_err, "\nStandard commands");
636 		i = 0;
637 		tp = 0;
638 		for (fp = functions; fp->name != NULL; fp++) {
639 			nl = 0;
640 #ifdef OPENSSL_NO_CAMELLIA
641 			if (((i++) % 5) == 0)
642 #else
643 			if (((i++) % 4) == 0)
644 #endif
645 			{
646 				BIO_printf(bio_err, "\n");
647 				nl = 1;
648 			}
649 			if (fp->type != tp) {
650 				tp = fp->type;
651 				if (!nl)
652 					BIO_printf(bio_err, "\n");
653 				if (tp == FUNC_TYPE_MD) {
654 					i = 1;
655 					BIO_printf(bio_err,
656 					    "\nMessage Digest commands (see the `dgst' command for more details)\n");
657 				} else if (tp == FUNC_TYPE_CIPHER) {
658 					i = 1;
659 					BIO_printf(bio_err, "\nCipher commands (see the `enc' command for more details)\n");
660 				}
661 			}
662 #ifdef OPENSSL_NO_CAMELLIA
663 			BIO_printf(bio_err, "%-15s", fp->name);
664 #else
665 			BIO_printf(bio_err, "%-18s", fp->name);
666 #endif
667 		}
668 		BIO_printf(bio_err, "\n\n");
669 		ret = 0;
670 	}
671  end:
672 	return (ret);
673 }
674 
675 static int
676 SortFnByName(const void *_f1, const void *_f2)
677 {
678 	const FUNCTION *f1 = _f1;
679 	const FUNCTION *f2 = _f2;
680 
681 	if (f1->type != f2->type)
682 		return f1->type - f2->type;
683 	return strcmp(f1->name, f2->name);
684 }
685 
686 static void
687 list_pkey(BIO * out)
688 {
689 	int i;
690 
691 	for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
692 		const EVP_PKEY_ASN1_METHOD *ameth;
693 		int pkey_id, pkey_base_id, pkey_flags;
694 		const char *pinfo, *pem_str;
695 		ameth = EVP_PKEY_asn1_get0(i);
696 		EVP_PKEY_asn1_get0_info(&pkey_id, &pkey_base_id, &pkey_flags,
697 		    &pinfo, &pem_str, ameth);
698 		if (pkey_flags & ASN1_PKEY_ALIAS) {
699 			BIO_printf(out, "Name: %s\n",
700 			    OBJ_nid2ln(pkey_id));
701 			BIO_printf(out, "\tType: Alias to %s\n",
702 			    OBJ_nid2ln(pkey_base_id));
703 		} else {
704 			BIO_printf(out, "Name: %s\n", pinfo);
705 			BIO_printf(out, "\tType: %s Algorithm\n",
706 			    pkey_flags & ASN1_PKEY_DYNAMIC ?
707 			    "External" : "Builtin");
708 			BIO_printf(out, "\tOID: %s\n", OBJ_nid2ln(pkey_id));
709 			if (pem_str == NULL)
710 				pem_str = "(none)";
711 			BIO_printf(out, "\tPEM string: %s\n", pem_str);
712 		}
713 
714 	}
715 }
716 
717 static void
718 list_cipher_fn(const EVP_CIPHER * c, const char *from, const char *to,
719     void *arg)
720 {
721 	if (c)
722 		BIO_printf(arg, "%s\n", EVP_CIPHER_name(c));
723 	else {
724 		if (!from)
725 			from = "<undefined>";
726 		if (!to)
727 			to = "<undefined>";
728 		BIO_printf(arg, "%s => %s\n", from, to);
729 	}
730 }
731 
732 static void
733 list_cipher(BIO * out)
734 {
735 	EVP_CIPHER_do_all_sorted(list_cipher_fn, out);
736 }
737 
738 static void
739 list_md_fn(const EVP_MD * m, const char *from, const char *to, void *arg)
740 {
741 	if (m)
742 		BIO_printf(arg, "%s\n", EVP_MD_name(m));
743 	else {
744 		if (!from)
745 			from = "<undefined>";
746 		if (!to)
747 			to = "<undefined>";
748 		BIO_printf(arg, "%s => %s\n", from, to);
749 	}
750 }
751 
752 static void
753 list_md(BIO * out)
754 {
755 	EVP_MD_do_all_sorted(list_md_fn, out);
756 }
757 
758 static int
759 function_cmp(const FUNCTION * a, const FUNCTION * b)
760 {
761 	return strncmp(a->name, b->name, 8);
762 }
763 
764 static IMPLEMENT_LHASH_COMP_FN(function, FUNCTION)
765 
766 static unsigned long
767 function_hash(const FUNCTION * a)
768 {
769 	return lh_strhash(a->name);
770 }
771 
772 static IMPLEMENT_LHASH_HASH_FN(function, FUNCTION)
773 
774 static LHASH_OF(FUNCTION) *
775 prog_init(void)
776 {
777 	LHASH_OF(FUNCTION) * ret;
778 	FUNCTION *f;
779 	size_t i;
780 
781 	/* Purely so it looks nice when the user hits ? */
782 	for (i = 0, f = functions; f->name != NULL; ++f, ++i)
783 		;
784 	qsort(functions, i, sizeof *functions, SortFnByName);
785 
786 	if ((ret = lh_FUNCTION_new()) == NULL)
787 		return (NULL);
788 
789 	for (f = functions; f->name != NULL; f++)
790 		(void) lh_FUNCTION_insert(ret, f);
791 	return (ret);
792 }
793