apps/openssl.c

   1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   2  * All rights reserved.
   3  *
   4  * This package is an SSL implementation written
   5  * by Eric Young (eay@cryptsoft.com).
   6  * The implementation was written so as to conform with Netscapes SSL.
   7  *
   8  * This library is free for commercial and non-commercial use as long as
   9  * the following conditions are aheared to.  The following conditions
  10  * apply to all code found in this distribution, be it the RC4, RSA,
  11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  12  * included with this distribution is covered by the same copyright terms
  13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  14  *
  15  * Copyright remains Eric Young's, and as such any Copyright notices in
  16  * the code are not to be removed.
  17  * If this package is used in a product, Eric Young should be given attribution
  18  * as the author of the parts of the library used.
  19  * This can be in the form of a textual message at program startup or
  20  * in documentation (online or textual) provided with the package.
  21  *
  22  * Redistribution and use in source and binary forms, with or without
  23  * modification, are permitted provided that the following conditions
  24  * are met:
  25  * 1. Redistributions of source code must retain the copyright
  26  *    notice, this list of conditions and the following disclaimer.
  27  * 2. Redistributions in binary form must reproduce the above copyright
  28  *    notice, this list of conditions and the following disclaimer in the
  29  *    documentation and/or other materials provided with the distribution.
  30  * 3. All advertising materials mentioning features or use of this software
  31  *    must display the following acknowledgement:
  32  *    "This product includes cryptographic software written by
  33  *     Eric Young (eay@cryptsoft.com)"
  34  *    The word 'cryptographic' can be left out if the rouines from the library
  35  *    being used are not cryptographic related :-).
  36  * 4. If you include any Windows specific code (or a derivative thereof) from
  37  *    the apps directory (application code) you must include an acknowledgement:
  38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50  * SUCH DAMAGE.
  51  *
  52  * The licence and distribution terms for any publically available version or
  53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  54  * copied and put under another distribution licence
  55  * [including the GNU Public Licence.]
  56  */
  57 /* ====================================================================
  58  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  59  *
  60  * Redistribution and use in source and binary forms, with or without
  61  * modification, are permitted provided that the following conditions
  62  * are met:
  63  *
  64  * 1. Redistributions of source code must retain the above copyright
  65  *    notice, this list of conditions and the following disclaimer.
  66  *
  67  * 2. Redistributions in binary form must reproduce the above copyright
  68  *    notice, this list of conditions and the following disclaimer in
  69  *    the documentation and/or other materials provided with the
  70  *    distribution.
  71  *
  72  * 3. All advertising materials mentioning features or use of this
  73  *    software must display the following acknowledgment:
  74  *    "This product includes software developed by the OpenSSL Project
  75  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  76  *
  77  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  78  *    endorse or promote products derived from this software without
  79  *    prior written permission. For written permission, please contact
  80  *    openssl-core@openssl.org.
  81  *
  82  * 5. Products derived from this software may not be called "OpenSSL"
  83  *    nor may "OpenSSL" appear in their names without prior written
  84  *    permission of the OpenSSL Project.
  85  *
  86  * 6. Redistributions of any form whatsoever must retain the following
  87  *    acknowledgment:
  88  *    "This product includes software developed by the OpenSSL Project
  89  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  90  *
  91  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  92  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  93  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  94  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  95  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  96  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  97  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  98  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  99  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 100  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 101  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 102  * OF THE POSSIBILITY OF SUCH DAMAGE.
 103  * ====================================================================
 104  *
 105  * This product includes cryptographic software written by Eric Young
 106  * (eay@cryptsoft.com).  This product includes software written by Tim
 107  * Hudson (tjh@cryptsoft.com).
 108  *
 109  */
 110
 111 #include <stdio.h>
 112 #include <string.h>
 113 #include <stdlib.h>
 114 #include <openssl/bio.h>
 115 #include <openssl/crypto.h>
 116 #include <openssl/rand.h>
 117 #include <openssl/lhash.h>
 118 #include <openssl/conf.h>
 119 #include <openssl/x509.h>
 120 #include <openssl/pem.h>
 121 #include <openssl/ssl.h>
 122 #ifndef OPENSSL_NO_ENGINE
 123 # include <openssl/engine.h>
 124 #endif
 125 #include <openssl/err.h>
 126 #ifdef OPENSSL_FIPS
 127 # include <openssl/fips.h>
 128 #endif
 129 #define USE_SOCKETS /* needed for the _O_BINARY defs in the MS world */
 130 #include "s_apps.h"
 131 /* Needed to get the other O_xxx flags. */
 132 #ifdef OPENSSL_SYS_VMS
 133 # include <unixio.h>
 134 #endif
 135 #define INCLUDE_FUNCTION_TABLE
 136 #include "apps.h"
 137
 138
 139 #ifdef OPENSSL_NO_CAMELLIA
 140 # define FORMAT "%-15s"
 141 # define COLUMNS 5
 142 #else
 143 # define FORMAT "%-18s"
 144 # define COLUMNS 4
 145 #endif
 146
 147 /* Special sentinel to exit the program. */
 148 #define EXIT_THE_PROGRAM (-1)
 149
 150 /*
 151  * The LHASH callbacks ("hash" & "cmp") have been replaced by functions with
 152  * the base prototypes (we cast each variable inside the function to the
 153  * required type of "FUNCTION*"). This removes the necessity for
 154  * macro-generated wrapper functions.
 155  */
 156 DECLARE_LHASH_OF(FUNCTION);
 157 static LHASH_OF(FUNCTION) *prog_init(void);
 158 static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[]);
 159 static void list_pkey(void);
 160 static void list_type(FUNC_TYPE ft);
 161 static void list_disabled(void);
 162 char *default_config_file = NULL;
 163
 164 static CONF *config = NULL;
 165 BIO *bio_in = NULL;
 166 BIO *bio_out = NULL;
 167 BIO *bio_err = NULL;
 168
 169 static void apps_startup()
 170 {
 171 #ifdef SIGPIPE
 172     signal(SIGPIPE, SIG_IGN);
 173 #endif
 174     CRYPTO_malloc_init();
 175     ERR_load_crypto_strings();
 176     ERR_load_SSL_strings();
 177     OpenSSL_add_all_algorithms();
 178     OpenSSL_add_ssl_algorithms();
 179     OPENSSL_load_builtin_modules();
 180     setup_ui_method();
 181     /*SSL_library_init();*/
 182 #ifndef OPENSSL_NO_ENGINE
 183     ENGINE_load_builtin_engines();
 184 #endif
 185 }
 186
 187 static void apps_shutdown()
 188 {
 189 #ifndef OPENSSL_NO_ENGINE
 190     ENGINE_cleanup();
 191 #endif
 192     destroy_ui_method();
 193     CONF_modules_unload(1);
 194 #ifndef OPENSSL_NO_COMP
 195     COMP_zlib_cleanup();
 196     SSL_COMP_free_compression_methods();
 197 #endif
 198     OBJ_cleanup();
 199     EVP_cleanup();
 200     CRYPTO_cleanup_all_ex_data();
 201     ERR_remove_thread_state(NULL);
 202     RAND_cleanup();
 203     ERR_free_strings();
 204 }
 205
 206 static char *make_config_name()
 207 {
 208     const char *t;
 209     size_t len;
 210     char *p;
 211
 212     if ((t = getenv("OPENSSL_CONF")) != NULL
 213         || (t = getenv("SSLEAY_CONF")) != NULL)
 214         return BUF_strdup(t);
 215
 216     t = X509_get_default_cert_area();
 217     len = strlen(t) + 1 + strlen(OPENSSL_CONF) + 1;
 218     p = app_malloc(len, "config filename buffer");
 219     strcpy(p, t);
 220 #ifndef OPENSSL_SYS_VMS
 221     strcat(p, "/");
 222 #endif
 223     strcat(p, OPENSSL_CONF);
 224
 225     return p;
 226 }
 227
 228 static void lock_dbg_cb(int mode, int type, const char *file, int line)
 229 {
 230     static int modes[CRYPTO_NUM_LOCKS];
 231     const char *errstr = NULL;
 232     int rw = mode & (CRYPTO_READ | CRYPTO_WRITE);
 233
 234     if (rw != CRYPTO_READ && rw != CRYPTO_WRITE) {
 235         errstr = "invalid mode";
 236         goto err;
 237     }
 238
 239     if (type < 0 || type >= CRYPTO_NUM_LOCKS) {
 240         errstr = "type out of bounds";
 241         goto err;
 242     }
 243
 244     if (mode & CRYPTO_LOCK) {
 245         if (modes[type]) {
 246             errstr = "already locked";
 247             /* must not happen in a single-threaded program --> deadlock! */
 248             goto err;
 249         }
 250         modes[type] = rw;
 251     } else if (mode & CRYPTO_UNLOCK) {
 252         if (!modes[type]) {
 253             errstr = "not locked";
 254             goto err;
 255         }
 256
 257         if (modes[type] != rw) {
 258             errstr = (rw == CRYPTO_READ) ?
 259                 "CRYPTO_r_unlock on write lock" :
 260                 "CRYPTO_w_unlock on read lock";
 261         }
 262
 263         modes[type] = 0;
 264     } else {
 265         errstr = "invalid mode";
 266         goto err;
 267     }
 268
 269  err:
 270     if (errstr) {
 271         BIO_printf(bio_err,
 272                    "openssl (lock_dbg_cb): %s (mode=%d, type=%d) at %s:%d\n",
 273                    errstr, mode, type, file, line);
 274     }
 275 }
 276
 277 #if defined( OPENSSL_SYS_VMS)
 278 extern char **copy_argv(int *argc, char **argv);
 279 #endif
 280
 281 int main(int argc, char *argv[])
 282 {
 283     FUNCTION f, *fp;
 284     LHASH_OF(FUNCTION) *prog = NULL;
 285     char **copied_argv = NULL;
 286     char *p, *pname;
 287     char buf[1024];
 288     const char *prompt;
 289     ARGS arg;
 290     int first, n, i, ret = 0;
 291
 292     arg.argv = NULL;
 293     arg.size = 0;
 294
 295     /* Set up some of the environment. */
 296     default_config_file = make_config_name();
 297     bio_in = dup_bio_in(FORMAT_TEXT);
 298     bio_out = dup_bio_out(FORMAT_TEXT);
 299     bio_err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
 300
 301 #if defined( OPENSSL_SYS_VMS)
 302     copied_argv = argv = copy_argv(&argc, argv);
 303 #endif
 304
 305     p = getenv("OPENSSL_DEBUG_MEMORY");
 306     if (p == NULL)
 307         /* if not set, use compiled-in default */
 308         ;
 309     else if (strcmp(p, "off") != 0) {
 310         CRYPTO_malloc_debug_init();
 311         CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);
 312     } else {
 313         CRYPTO_set_mem_debug_functions(0, 0, 0, 0, 0);
 314     }
 315     CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 316     CRYPTO_set_locking_callback(lock_dbg_cb);
 317
 318     if (getenv("OPENSSL_FIPS")) {
 319 #ifdef OPENSSL_FIPS
 320         if (!FIPS_mode_set(1)) {
 321             ERR_load_crypto_strings();
 322             ERR_print_errors(bio_err);
 323             return 1;
 324         }
 325 #else
 326         BIO_printf(bio_err, "FIPS mode not supported.\n");
 327         return 1;
 328 #endif
 329     }
 330
 331     apps_startup();
 332     prog = prog_init();
 333     pname = opt_progname(argv[0]);
 334
 335     /* first check the program name */
 336     f.name = pname;
 337     fp = lh_FUNCTION_retrieve(prog, &f);
 338     if (fp != NULL) {
 339         argv[0] = pname;
 340         ret = fp->func(argc, argv);
 341         goto end;
 342     }
 343
 344     /* If there is stuff on the command line, run with that. */
 345     if (argc != 1) {
 346         argc--;
 347         argv++;
 348         ret = do_cmd(prog, argc, argv);
 349         if (ret < 0)
 350             ret = 0;
 351         goto end;
 352     }
 353
 354     /* ok, lets enter interactive mode */
 355     for (;;) {
 356         ret = 0;
 357         /* Read a line, continue reading if line ends with \ */
 358         for (p = buf, n = sizeof buf, i = 0, first = 1; n > 0; first = 0) {
 359             prompt = first ? "OpenSSL> " : "> ";
 360             p[0] = '\0';
 361 #ifndef READLINE
 362             fputs(prompt, stdout);
 363             fflush(stdout);
 364             if (!fgets(p, n, stdin))
 365                 goto end;
 366             if (p[0] == '\0')
 367                 goto end;
 368             i = strlen(p);
 369             if (i <= 1)
 370                 break;
 371             if (p[i - 2] != '\\')
 372                 break;
 373             i -= 2;
 374             p += i;
 375             n -= i;
 376 #else
 377             {
 378                 extern char *readline(const char *);
 379                 extern void add_history(const char *cp);
 380                 char *text;
 381
 382                 char *text = readline(prompt);
 383                 if (text == NULL)
 384                     goto end;
 385                 i = strlen(text);
 386                 if (i == 0 || i > n)
 387                     break;
 388                 if (text[i - 1] != '\\') {
 389                     p += strlen(strcpy(p, text));
 390                     free(text);
 391                     add_history(buf);
 392                     break;
 393                 }
 394
 395                 text[i - 1] = '\0';
 396                 p += strlen(strcpy(p, text));
 397                 free(text);
 398                 n -= i;
 399             }
 400 #endif
 401         }
 402
 403         if (!chopup_args(&arg, buf)) {
 404             BIO_printf(bio_err, "Can't parse (no memory?)\n");
 405             break;
 406         }
 407
 408         ret = do_cmd(prog, arg.argc, arg.argv);
 409         if (ret == EXIT_THE_PROGRAM) {
 410             ret = 0;
 411             goto end;
 412         }
 413         if (ret != 0)
 414             BIO_printf(bio_err, "error in %s\n", arg.argv[0]);
 415         (void)BIO_flush(bio_out);
 416         (void)BIO_flush(bio_err);
 417     }
 418     ret = 1;
 419  end:
 420     OPENSSL_free(copied_argv);
 421     OPENSSL_free(default_config_file);
 422     NCONF_free(config);
 423     config = NULL;
 424     lh_FUNCTION_free(prog);
 425     OPENSSL_free(arg.argv);
 426
 427     BIO_free(bio_in);
 428     BIO_free_all(bio_out);
 429     apps_shutdown();
 430     CRYPTO_mem_leaks(bio_err);
 431     BIO_free(bio_err);
 432     return (ret);
 433 }
 434
 435 OPTIONS exit_options[] = {
 436     {NULL}
 437 };
 438
 439 static void list_cipher_fn(const EVP_CIPHER *c,
 440                            const char *from, const char *to, void *arg)
 441 {
 442     if (c)
 443         BIO_printf(arg, "%s\n", EVP_CIPHER_name(c));
 444     else {
 445         if (!from)
 446             from = "<undefined>";
 447         if (!to)
 448             to = "<undefined>";
 449         BIO_printf(arg, "%s => %s\n", from, to);
 450     }
 451 }
 452
 453 static void list_md_fn(const EVP_MD *m,
 454                        const char *from, const char *to, void *arg)
 455 {
 456     if (m)
 457         BIO_printf(arg, "%s\n", EVP_MD_name(m));
 458     else {
 459         if (!from)
 460             from = "<undefined>";
 461         if (!to)
 462             to = "<undefined>";
 463         BIO_printf((BIO *)arg, "%s => %s\n", from, to);
 464     }
 465 }
 466
 467 /* Unified enum for help and list commands. */
 468 typedef enum HELPLIST_CHOICE {
 469     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
 470     OPT_COMMANDS, OPT_DIGEST_COMMANDS,
 471     OPT_DIGEST_ALGORITHMS, OPT_CIPHER_COMMANDS, OPT_CIPHER_ALGORITHMS,
 472     OPT_PK_ALGORITHMS, OPT_DISABLED
 473 } HELPLIST_CHOICE;
 474
 475 OPTIONS list_options[] = {
 476     {"help", OPT_HELP, '-', "Display this summary"},
 477     {"commands", OPT_COMMANDS, '-', "List of standard commands"},
 478     {"digest-commands", OPT_DIGEST_COMMANDS, '-',
 479      "List of message digest commands"},
 480     {"digest-algorithms", OPT_DIGEST_ALGORITHMS, '-',
 481      "List of message digest algorithms"},
 482     {"cipher-commands", OPT_CIPHER_COMMANDS, '-', "List of cipher commands"},
 483     {"cipher-algorithms", OPT_CIPHER_ALGORITHMS, '-',
 484      "List of cipher algorithms"},
 485     {"public-key-algorithms", OPT_PK_ALGORITHMS, '-',
 486      "List of public key algorithms"},
 487     {"disabled", OPT_DISABLED, '-',
 488      "List of disabled features"},
 489     {NULL}
 490 };
 491
 492 int list_main(int argc, char **argv)
 493 {
 494     char *prog;
 495     HELPLIST_CHOICE o;
 496     int done = 0;
 497
 498     prog = opt_init(argc, argv, list_options);
 499     while ((o = opt_next()) != OPT_EOF) {
 500         switch (o) {
 501         case OPT_EOF:  /* Never hit, but suppresses warning */
 502         case OPT_ERR:
 503             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 504             return 1;
 505         case OPT_HELP:
 506             opt_help(list_options);
 507             break;
 508         case OPT_COMMANDS:
 509             list_type(FT_general);
 510             break;
 511         case OPT_DIGEST_COMMANDS:
 512             list_type(FT_md);
 513             break;
 514         case OPT_DIGEST_ALGORITHMS:
 515             EVP_MD_do_all_sorted(list_md_fn, bio_out);
 516             break;
 517         case OPT_CIPHER_COMMANDS:
 518             list_type(FT_cipher);
 519             break;
 520         case OPT_CIPHER_ALGORITHMS:
 521             EVP_CIPHER_do_all_sorted(list_cipher_fn, bio_out);
 522             break;
 523         case OPT_PK_ALGORITHMS:
 524             list_pkey();
 525             break;
 526         case OPT_DISABLED:
 527             list_disabled();
 528             break;
 529         }
 530         done = 1;
 531     }
 532
 533     if (!done) {
 534         BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 535         return 1;
 536     }
 537
 538     return 0;
 539 }
 540
 541 OPTIONS help_options[] = {
 542     {"help", OPT_HELP, '-', "Display this summary"},
 543     {NULL}
 544 };
 545
 546 int help_main(int argc, char **argv)
 547 {
 548     FUNCTION *fp;
 549     int i, nl;
 550     FUNC_TYPE tp;
 551     char *prog;
 552     HELPLIST_CHOICE o;
 553
 554     prog = opt_init(argc, argv, help_options);
 555     while ((o = opt_next()) != OPT_EOF) {
 556         switch (o) {
 557         default:
 558             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 559             return 1;
 560         case OPT_HELP:
 561             opt_help(help_options);
 562             return 0;
 563         }
 564     }
 565     argc = opt_num_rest();
 566     argv = opt_rest();
 567
 568     if (argc != 0) {
 569         BIO_printf(bio_err, "Usage: %s\n", prog);
 570         return 1;
 571     }
 572
 573     BIO_printf(bio_err, "\nStandard commands");
 574     i = 0;
 575     tp = FT_none;
 576     for (fp = functions; fp->name != NULL; fp++) {
 577         nl = 0;
 578         if (((i++) % COLUMNS) == 0) {
 579             BIO_printf(bio_err, "\n");
 580             nl = 1;
 581         }
 582         if (fp->type != tp) {
 583             tp = fp->type;
 584             if (!nl)
 585                 BIO_printf(bio_err, "\n");
 586             if (tp == FT_md) {
 587                 i = 1;
 588                 BIO_printf(bio_err,
 589                            "\nMessage Digest commands (see the `dgst' command for more details)\n");
 590             } else if (tp == FT_cipher) {
 591                 i = 1;
 592                 BIO_printf(bio_err,
 593                            "\nCipher commands (see the `enc' command for more details)\n");
 594             }
 595         }
 596         BIO_printf(bio_err, FORMAT, fp->name);
 597     }
 598     BIO_printf(bio_err, "\n\n");
 599     return 0;
 600 }
 601
 602 int exit_main(int argc, char **argv)
 603 {
 604     return EXIT_THE_PROGRAM;
 605 }
 606
 607 static void list_type(FUNC_TYPE ft)
 608 {
 609     FUNCTION *fp;
 610     int i = 0;
 611
 612     for (fp = functions; fp->name != NULL; fp++)
 613         if (fp->type == ft) {
 614             if ((i++ % COLUMNS) == 0)
 615                 BIO_printf(bio_out, "\n");
 616             BIO_printf(bio_out, FORMAT, fp->name);
 617         }
 618     BIO_printf(bio_out, "\n");
 619 }
 620
 621 static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[])
 622 {
 623     FUNCTION f, *fp;
 624
 625     if (argc <= 0 || argv[0] == NULL)
 626         return (0);
 627     f.name = argv[0];
 628     fp = lh_FUNCTION_retrieve(prog, &f);
 629     if (fp == NULL) {
 630         if (EVP_get_digestbyname(argv[0])) {
 631             f.type = FT_md;
 632             f.func = dgst_main;
 633             fp = &f;
 634         } else if (EVP_get_cipherbyname(argv[0])) {
 635             f.type = FT_cipher;
 636             f.func = enc_main;
 637             fp = &f;
 638         }
 639     }
 640     if (fp != NULL) {
 641         return (fp->func(argc, argv));
 642     }
 643     if ((strncmp(argv[0], "no-", 3)) == 0) {
 644         /*
 645          * User is asking if foo is unsupported, by trying to "run" the
 646          * no-foo command.  Strange.
 647          */
 648         f.name = argv[0] + 3;
 649         if (lh_FUNCTION_retrieve(prog, &f) == NULL) {
 650             BIO_printf(bio_out, "%s\n", argv[0]);
 651             return (0);
 652         }
 653         BIO_printf(bio_out, "%s\n", argv[0] + 3);
 654         return 1;
 655     }
 656     if (strcmp(argv[0], "quit") == 0 || strcmp(argv[0], "q") == 0 ||
 657         strcmp(argv[0], "exit") == 0 || strcmp(argv[0], "bye") == 0)
 658         /* Special value to mean "exit the program. */
 659         return EXIT_THE_PROGRAM;
 660
 661     BIO_printf(bio_err, "Invalid command '%s'; type \"help\" for a list.\n",
 662                argv[0]);
 663     return (1);
 664 }
 665
 666 static void list_pkey(void)
 667 {
 668     int i;
 669
 670     for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
 671         const EVP_PKEY_ASN1_METHOD *ameth;
 672         int pkey_id, pkey_base_id, pkey_flags;
 673         const char *pinfo, *pem_str;
 674         ameth = EVP_PKEY_asn1_get0(i);
 675         EVP_PKEY_asn1_get0_info(&pkey_id, &pkey_base_id, &pkey_flags,
 676                                 &pinfo, &pem_str, ameth);
 677         if (pkey_flags & ASN1_PKEY_ALIAS) {
 678             BIO_printf(bio_out, "Name: %s\n", OBJ_nid2ln(pkey_id));
 679             BIO_printf(bio_out, "\tAlias for: %s\n",
 680                        OBJ_nid2ln(pkey_base_id));
 681         } else {
 682             BIO_printf(bio_out, "Name: %s\n", pinfo);
 683             BIO_printf(bio_out, "\tType: %s Algorithm\n",
 684                        pkey_flags & ASN1_PKEY_DYNAMIC ?
 685                        "External" : "Builtin");
 686             BIO_printf(bio_out, "\tOID: %s\n", OBJ_nid2ln(pkey_id));
 687             if (pem_str == NULL)
 688                 pem_str = "(none)";
 689             BIO_printf(bio_out, "\tPEM string: %s\n", pem_str);
 690         }
 691
 692     }
 693 }
 694
 695 static int function_cmp(const FUNCTION * a, const FUNCTION * b)
 696 {
 697     return strncmp(a->name, b->name, 8);
 698 }
 699
 700 static IMPLEMENT_LHASH_COMP_FN(function, FUNCTION)
 701
 702 static unsigned long function_hash(const FUNCTION * a)
 703 {
 704     return lh_strhash(a->name);
 705 }
 706
 707 static IMPLEMENT_LHASH_HASH_FN(function, FUNCTION)
 708
 709 static int SortFnByName(const void *_f1, const void *_f2)
 710 {
 711     const FUNCTION *f1 = _f1;
 712     const FUNCTION *f2 = _f2;
 713
 714     if (f1->type != f2->type)
 715         return f1->type - f2->type;
 716     return strcmp(f1->name, f2->name);
 717 }
 718
 719 static void list_disabled(void)
 720 {
 721     BIO_puts(bio_out, "Disabled algorithms:\n");
 722 #ifdef OPENSSL_NO_AES
 723     BIO_puts(bio_out, "AES\n");
 724 #endif
 725 #ifdef OPENSSL_NO_BF
 726     BIO_puts(bio_out, "BF\n");
 727 #endif
 728 #ifdef OPENSSL_NO_CAMELLIA
 729     BIO_puts(bio_out, "CAMELLIA\n");
 730 #endif
 731 #ifdef OPENSSL_NO_CAST
 732     BIO_puts(bio_out, "CAST\n");
 733 #endif
 734 #ifdef OPENSSL_NO_CMAC
 735     BIO_puts(bio_out, "CMAC\n");
 736 #endif
 737 #ifdef OPENSSL_NO_CMS
 738     BIO_puts(bio_out, "CMS\n");
 739 #endif
 740 #ifdef OPENSSL_NO_COMP
 741     BIO_puts(bio_out, "COMP\n");
 742 #endif
 743 #ifdef OPENSSL_NO_DES
 744     BIO_puts(bio_out, "DES\n");
 745 #endif
 746 #ifdef OPENSSL_NO_DGRAM
 747     BIO_puts(bio_out, "DGRAM\n");
 748 #endif
 749 #ifdef OPENSSL_NO_DH
 750     BIO_puts(bio_out, "DH\n");
 751 #endif
 752 #ifdef OPENSSL_NO_DSA
 753     BIO_puts(bio_out, "DSA\n");
 754 #endif
 755 #if defined(OPENSSL_NO_DTLS1) || defined(OPENSSL_NO_DTLS)
 756     BIO_puts(bio_out, "DTLS1\n");
 757 #endif
 758 #ifdef OPENSSL_NO_EC
 759     BIO_puts(bio_out, "EC\n");
 760 #endif
 761 #ifdef OPENSSL_NO_EC2M
 762     BIO_puts(bio_out, "EC2M\n");
 763 #endif
 764 #ifdef OPENSSL_NO_ENGINE
 765     BIO_puts(bio_out, "ENGINE\n");
 766 #endif
 767 #ifdef OPENSSL_NO_GOST
 768     BIO_puts(bio_out, "GOST\n");
 769 #endif
 770 #ifdef OPENSSL_NO_HMAC
 771     BIO_puts(bio_out, "HMAC\n");
 772 #endif
 773 #ifdef OPENSSL_NO_IDEA
 774     BIO_puts(bio_out, "IDEA\n");
 775 #endif
 776 #ifdef OPENSSL_NO_JPAKE
 777     BIO_puts(bio_out, "JPAKE\n");
 778 #endif
 779 #ifdef OPENSSL_NO_MD2
 780     BIO_puts(bio_out, "MD2\n");
 781 #endif
 782 #ifdef OPENSSL_NO_MD4
 783     BIO_puts(bio_out, "MD4\n");
 784 #endif
 785 #ifdef OPENSSL_NO_MD5
 786     BIO_puts(bio_out, "MD5\n");
 787 #endif
 788 #ifdef OPENSSL_NO_MDC2
 789     BIO_puts(bio_out, "MDC2\n");
 790 #endif
 791 #ifdef OPENSSL_NO_OCB
 792     BIO_puts(bio_out, "OCB\n");
 793 #endif
 794 #ifdef OPENSSL_NO_OCSP
 795     BIO_puts(bio_out, "OCSP\n");
 796 #endif
 797 #ifdef OPENSSL_NO_PSK
 798     BIO_puts(bio_out, "PSK\n");
 799 #endif
 800 #ifdef OPENSSL_NO_RC2
 801     BIO_puts(bio_out, "RC2\n");
 802 #endif
 803 #ifdef OPENSSL_NO_RC4
 804     BIO_puts(bio_out, "RC4\n");
 805 #endif
 806 #ifdef OPENSSL_NO_RC5
 807     BIO_puts(bio_out, "RC5\n");
 808 #endif
 809 #ifdef OPENSSL_NO_RMD160
 810     BIO_puts(bio_out, "RMD160\n");
 811 #endif
 812 #ifdef OPENSSL_NO_RSA
 813     BIO_puts(bio_out, "RSA\n");
 814 #endif
 815 #ifdef OPENSSL_NO_SCRYPT
 816     BIO_puts(bio_out, "SCRYPT\n");
 817 #endif
 818 #ifdef OPENSSL_NO_SCT
 819     BIO_puts(bio_out, "SCT\n");
 820 #endif
 821 #ifdef OPENSSL_NO_SCTP
 822     BIO_puts(bio_out, "SCTP\n");
 823 #endif
 824 #ifdef OPENSSL_NO_SEED
 825     BIO_puts(bio_out, "SEED\n");
 826 #endif
 827 #ifdef OPENSSL_NO_SHA
 828     BIO_puts(bio_out, "SHA\n");
 829 #endif
 830 #ifdef OPENSSL_NO_SOCK
 831     BIO_puts(bio_out, "SOCK\n");
 832 #endif
 833 #ifdef OPENSSL_NO_SRP
 834     BIO_puts(bio_out, "SRP\n");
 835 #endif
 836 #ifdef OPENSSL_NO_SRTP
 837     BIO_puts(bio_out, "SRTP\n");
 838 #endif
 839 #ifdef OPENSSL_NO_SSL3
 840     BIO_puts(bio_out, "SSL3\n");
 841 #endif
 842 #ifdef OPENSSL_NO_WHIRLPOOL
 843     BIO_puts(bio_out, "WHIRLPOOL\n");
 844 #endif
 845 #ifndef ZLIB
 846     BIO_puts(bio_out, "ZLIB\n");
 847 #endif
 848 }
 849
 850 static LHASH_OF(FUNCTION) *prog_init(void)
 851 {
 852     LHASH_OF(FUNCTION) *ret;
 853     FUNCTION *f;
 854     size_t i;
 855
 856     /* Sort alphabetically within category. For nicer help displays. */
 857     for (i = 0, f = functions; f->name != NULL; ++f, ++i) ;
 858     qsort(functions, i, sizeof(*functions), SortFnByName);
 859
 860     if ((ret = lh_FUNCTION_new()) == NULL)
 861         return (NULL);
 862
 863     for (f = functions; f->name != NULL; f++)
 864         (void)lh_FUNCTION_insert(ret, f);
 865     return (ret);
 866 }