apps/openssl.c

   1 /*
   2  * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <internal/cryptlib.h>
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <stdlib.h>
  14 #include <openssl/bio.h>
  15 #include <openssl/crypto.h>
  16 #include <openssl/lhash.h>
  17 #include <openssl/conf.h>
  18 #include <openssl/x509.h>
  19 #include <openssl/pem.h>
  20 #include <openssl/ssl.h>
  21 #ifndef OPENSSL_NO_ENGINE
  22 # include <openssl/engine.h>
  23 #endif
  24 #include <openssl/err.h>
  25 /* Needed to get the other O_xxx flags. */
  26 #ifdef OPENSSL_SYS_VMS
  27 # include <unixio.h>
  28 #endif
  29 #include "apps.h"
  30 #define INCLUDE_FUNCTION_TABLE
  31 #include "progs.h"
  32
  33 /* Structure to hold the number of columns to be displayed and the
  34  * field width used to display them.
  35  */
  36 typedef struct {
  37     int columns;
  38     int width;
  39 } DISPLAY_COLUMNS;
  40
  41 /* Special sentinel to exit the program. */
  42 #define EXIT_THE_PROGRAM (-1)
  43
  44 /*
  45  * The LHASH callbacks ("hash" & "cmp") have been replaced by functions with
  46  * the base prototypes (we cast each variable inside the function to the
  47  * required type of "FUNCTION*"). This removes the necessity for
  48  * macro-generated wrapper functions.
  49  */
  50 static LHASH_OF(FUNCTION) *prog_init(void);
  51 static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[]);
  52 static void list_pkey(void);
  53 static void list_pkey_meth(void);
  54 static void list_type(FUNC_TYPE ft, int one);
  55 static void list_disabled(void);
  56 char *default_config_file = NULL;
  57
  58 BIO *bio_in = NULL;
  59 BIO *bio_out = NULL;
  60 BIO *bio_err = NULL;
  61
  62 static void calculate_columns(DISPLAY_COLUMNS *dc)
  63 {
  64     FUNCTION *f;
  65     int len, maxlen = 0;
  66
  67     for (f = functions; f->name != NULL; ++f)
  68         if (f->type == FT_general || f->type == FT_md || f->type == FT_cipher)
  69             if ((len = strlen(f->name)) > maxlen)
  70                 maxlen = len;
  71
  72     dc->width = maxlen + 2;
  73     dc->columns = (80 - 1) / dc->width;
  74 }
  75
  76 static int apps_startup(void)
  77 {
  78 #ifdef SIGPIPE
  79     signal(SIGPIPE, SIG_IGN);
  80 #endif
  81
  82     /* Set non-default library initialisation settings */
  83     if (!OPENSSL_init_ssl(OPENSSL_INIT_ENGINE_ALL_BUILTIN
  84                           | OPENSSL_INIT_LOAD_CONFIG, NULL))
  85         return 0;
  86
  87     setup_ui_method();
  88
  89     return 1;
  90 }
  91
  92 static void apps_shutdown(void)
  93 {
  94     destroy_ui_method();
  95     destroy_prefix_method();
  96 }
  97
  98 static char *make_config_name(void)
  99 {
 100     const char *t;
 101     size_t len;
 102     char *p;
 103
 104     if ((t = getenv("OPENSSL_CONF")) != NULL)
 105         return OPENSSL_strdup(t);
 106
 107     t = X509_get_default_cert_area();
 108     len = strlen(t) + 1 + strlen(OPENSSL_CONF) + 1;
 109     p = app_malloc(len, "config filename buffer");
 110     strcpy(p, t);
 111 #ifndef OPENSSL_SYS_VMS
 112     strcat(p, "/");
 113 #endif
 114     strcat(p, OPENSSL_CONF);
 115
 116     return p;
 117 }
 118
 119 int main(int argc, char *argv[])
 120 {
 121     FUNCTION f, *fp;
 122     LHASH_OF(FUNCTION) *prog = NULL;
 123     char **copied_argv = NULL;
 124     char *p, *pname;
 125     char buf[1024];
 126     const char *prompt;
 127     ARGS arg;
 128     int first, n, i, ret = 0;
 129
 130     arg.argv = NULL;
 131     arg.size = 0;
 132
 133     /* Set up some of the environment. */
 134     default_config_file = make_config_name();
 135     bio_in = dup_bio_in(FORMAT_TEXT);
 136     bio_out = dup_bio_out(FORMAT_TEXT);
 137     bio_err = dup_bio_err(FORMAT_TEXT);
 138
 139 #if defined(OPENSSL_SYS_VMS) && defined(__DECC)
 140     copied_argv = argv = copy_argv(&argc, argv);
 141 #elif defined(_WIN32)
 142     /*
 143      * Replace argv[] with UTF-8 encoded strings.
 144      */
 145     win32_utf8argv(&argc, &argv);
 146 #endif
 147
 148     p = getenv("OPENSSL_DEBUG_MEMORY");
 149     if (p != NULL && strcmp(p, "on") == 0)
 150         CRYPTO_set_mem_debug(1);
 151     CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 152
 153     if (getenv("OPENSSL_FIPS")) {
 154         BIO_printf(bio_err, "FIPS mode not supported.\n");
 155         return 1;
 156     }
 157
 158     if (!apps_startup()) {
 159         BIO_printf(bio_err,
 160                    "FATAL: Startup failure (dev note: apps_startup() failed)\n");
 161         ERR_print_errors(bio_err);
 162         ret = 1;
 163         goto end;
 164     }
 165
 166     prog = prog_init();
 167     if (prog == NULL) {
 168         BIO_printf(bio_err,
 169                    "FATAL: Startup failure (dev note: prog_init() failed)\n");
 170         ERR_print_errors(bio_err);
 171         ret = 1;
 172         goto end;
 173     }
 174     pname = opt_progname(argv[0]);
 175
 176     /* first check the program name */
 177     f.name = pname;
 178     fp = lh_FUNCTION_retrieve(prog, &f);
 179     if (fp != NULL) {
 180         argv[0] = pname;
 181         ret = fp->func(argc, argv);
 182         goto end;
 183     }
 184
 185     /* If there is stuff on the command line, run with that. */
 186     if (argc != 1) {
 187         argc--;
 188         argv++;
 189         ret = do_cmd(prog, argc, argv);
 190         if (ret < 0)
 191             ret = 0;
 192         goto end;
 193     }
 194
 195     /* ok, lets enter interactive mode */
 196     for (;;) {
 197         ret = 0;
 198         /* Read a line, continue reading if line ends with \ */
 199         for (p = buf, n = sizeof(buf), i = 0, first = 1; n > 0; first = 0) {
 200             prompt = first ? "OpenSSL> " : "> ";
 201             p[0] = '\0';
 202 #ifndef READLINE
 203             fputs(prompt, stdout);
 204             fflush(stdout);
 205             if (!fgets(p, n, stdin))
 206                 goto end;
 207             if (p[0] == '\0')
 208                 goto end;
 209             i = strlen(p);
 210             if (i <= 1)
 211                 break;
 212             if (p[i - 2] != '\\')
 213                 break;
 214             i -= 2;
 215             p += i;
 216             n -= i;
 217 #else
 218             {
 219                 extern char *readline(const char *);
 220                 extern void add_history(const char *cp);
 221                 char *text;
 222
 223                 text = readline(prompt);
 224                 if (text == NULL)
 225                     goto end;
 226                 i = strlen(text);
 227                 if (i == 0 || i > n)
 228                     break;
 229                 if (text[i - 1] != '\\') {
 230                     p += strlen(strcpy(p, text));
 231                     free(text);
 232                     add_history(buf);
 233                     break;
 234                 }
 235
 236                 text[i - 1] = '\0';
 237                 p += strlen(strcpy(p, text));
 238                 free(text);
 239                 n -= i;
 240             }
 241 #endif
 242         }
 243
 244         if (!chopup_args(&arg, buf)) {
 245             BIO_printf(bio_err, "Can't parse (no memory?)\n");
 246             break;
 247         }
 248
 249         ret = do_cmd(prog, arg.argc, arg.argv);
 250         if (ret == EXIT_THE_PROGRAM) {
 251             ret = 0;
 252             goto end;
 253         }
 254         if (ret != 0)
 255             BIO_printf(bio_err, "error in %s\n", arg.argv[0]);
 256         (void)BIO_flush(bio_out);
 257         (void)BIO_flush(bio_err);
 258     }
 259     ret = 1;
 260  end:
 261     OPENSSL_free(copied_argv);
 262     OPENSSL_free(default_config_file);
 263     lh_FUNCTION_free(prog);
 264     OPENSSL_free(arg.argv);
 265     app_RAND_write();
 266
 267     BIO_free(bio_in);
 268     BIO_free_all(bio_out);
 269     apps_shutdown();
 270 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
 271     if (CRYPTO_mem_leaks(bio_err) <= 0)
 272         ret = 1;
 273 #endif
 274     BIO_free(bio_err);
 275     EXIT(ret);
 276 }
 277
 278 static void list_cipher_fn(const EVP_CIPHER *c,
 279                            const char *from, const char *to, void *arg)
 280 {
 281     if (c != NULL) {
 282         BIO_printf(arg, "%s\n", EVP_CIPHER_name(c));
 283     } else {
 284         if (from == NULL)
 285             from = "<undefined>";
 286         if (to == NULL)
 287             to = "<undefined>";
 288         BIO_printf(arg, "%s => %s\n", from, to);
 289     }
 290 }
 291
 292 static void list_md_fn(const EVP_MD *m,
 293                        const char *from, const char *to, void *arg)
 294 {
 295     if (m != NULL) {
 296         BIO_printf(arg, "%s\n", EVP_MD_name(m));
 297     } else {
 298         if (from == NULL)
 299             from = "<undefined>";
 300         if (to == NULL)
 301             to = "<undefined>";
 302         BIO_printf((BIO *)arg, "%s => %s\n", from, to);
 303     }
 304 }
 305
 306 static void list_missing_help(void)
 307 {
 308     const FUNCTION *fp;
 309     const OPTIONS *o;
 310
 311     for (fp = functions; fp->name != NULL; fp++) {
 312         if ((o = fp->help) != NULL) {
 313             /* If there is help, list what flags are not documented. */
 314             for ( ; o->name != NULL; o++) {
 315                 if (o->helpstr == NULL)
 316                     BIO_printf(bio_out, "%s %s\n", fp->name, o->name);
 317             }
 318         } else if (fp->func != dgst_main) {
 319             /* If not aliased to the dgst command, */
 320             BIO_printf(bio_out, "%s *\n", fp->name);
 321         }
 322     }
 323 }
 324
 325 static void list_options_for_command(const char *command)
 326 {
 327     const FUNCTION *fp;
 328     const OPTIONS *o;
 329
 330     for (fp = functions; fp->name != NULL; fp++)
 331         if (strcmp(fp->name, command) == 0)
 332             break;
 333     if (fp->name == NULL) {
 334         BIO_printf(bio_err, "Invalid command '%s'; type \"help\" for a list.\n",
 335                 command);
 336         return;
 337     }
 338
 339     if ((o = fp->help) == NULL)
 340         return;
 341
 342     for ( ; o->name != NULL; o++) {
 343         if (o->name == OPT_HELP_STR
 344                 || o->name == OPT_MORE_STR
 345                 || o->name[0] == '\0')
 346             continue;
 347         BIO_printf(bio_out, "%s %c\n", o->name, o->valtype);
 348     }
 349 }
 350
 351
 352 /* Unified enum for help and list commands. */
 353 typedef enum HELPLIST_CHOICE {
 354     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_ONE,
 355     OPT_COMMANDS, OPT_DIGEST_COMMANDS, OPT_OPTIONS,
 356     OPT_DIGEST_ALGORITHMS, OPT_CIPHER_COMMANDS, OPT_CIPHER_ALGORITHMS,
 357     OPT_PK_ALGORITHMS, OPT_PK_METHOD, OPT_DISABLED, OPT_MISSING_HELP
 358 } HELPLIST_CHOICE;
 359
 360 const OPTIONS list_options[] = {
 361     {"help", OPT_HELP, '-', "Display this summary"},
 362     {"1", OPT_ONE, '-', "List in one column"},
 363     {"commands", OPT_COMMANDS, '-', "List of standard commands"},
 364     {"digest-commands", OPT_DIGEST_COMMANDS, '-',
 365      "List of message digest commands"},
 366     {"digest-algorithms", OPT_DIGEST_ALGORITHMS, '-',
 367      "List of message digest algorithms"},
 368     {"cipher-commands", OPT_CIPHER_COMMANDS, '-', "List of cipher commands"},
 369     {"cipher-algorithms", OPT_CIPHER_ALGORITHMS, '-',
 370      "List of cipher algorithms"},
 371     {"public-key-algorithms", OPT_PK_ALGORITHMS, '-',
 372      "List of public key algorithms"},
 373     {"public-key-methods", OPT_PK_METHOD, '-',
 374      "List of public key methods"},
 375     {"disabled", OPT_DISABLED, '-',
 376      "List of disabled features"},
 377     {"missing-help", OPT_MISSING_HELP, '-',
 378      "List missing detailed help strings"},
 379     {"options", OPT_OPTIONS, 's',
 380      "List options for specified command"},
 381     {NULL}
 382 };
 383
 384 int list_main(int argc, char **argv)
 385 {
 386     char *prog;
 387     HELPLIST_CHOICE o;
 388     int one = 0, done = 0;
 389
 390     prog = opt_init(argc, argv, list_options);
 391     while ((o = opt_next()) != OPT_EOF) {
 392         switch (o) {
 393         case OPT_EOF:  /* Never hit, but suppresses warning */
 394         case OPT_ERR:
 395 opthelp:
 396             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 397             return 1;
 398         case OPT_HELP:
 399             opt_help(list_options);
 400             break;
 401         case OPT_ONE:
 402             one = 1;
 403             break;
 404         case OPT_COMMANDS:
 405             list_type(FT_general, one);
 406             break;
 407         case OPT_DIGEST_COMMANDS:
 408             list_type(FT_md, one);
 409             break;
 410         case OPT_DIGEST_ALGORITHMS:
 411             EVP_MD_do_all_sorted(list_md_fn, bio_out);
 412             break;
 413         case OPT_CIPHER_COMMANDS:
 414             list_type(FT_cipher, one);
 415             break;
 416         case OPT_CIPHER_ALGORITHMS:
 417             EVP_CIPHER_do_all_sorted(list_cipher_fn, bio_out);
 418             break;
 419         case OPT_PK_ALGORITHMS:
 420             list_pkey();
 421             break;
 422         case OPT_PK_METHOD:
 423             list_pkey_meth();
 424             break;
 425         case OPT_DISABLED:
 426             list_disabled();
 427             break;
 428         case OPT_MISSING_HELP:
 429             list_missing_help();
 430             break;
 431         case OPT_OPTIONS:
 432             list_options_for_command(opt_arg());
 433             break;
 434         }
 435         done = 1;
 436     }
 437     if (opt_num_rest() != 0) {
 438         BIO_printf(bio_err, "Extra arguments given.\n");
 439         goto opthelp;
 440     }
 441
 442     if (!done)
 443         goto opthelp;
 444
 445     return 0;
 446 }
 447
 448 typedef enum HELP_CHOICE {
 449     OPT_hERR = -1, OPT_hEOF = 0, OPT_hHELP
 450 } HELP_CHOICE;
 451
 452 const OPTIONS help_options[] = {
 453     {OPT_HELP_STR, 1, '-', "Usage: help [options]\n"},
 454     {OPT_HELP_STR, 1, '-', "       help [command]\n"},
 455     {"help", OPT_hHELP, '-', "Display this summary"},
 456     {NULL}
 457 };
 458
 459
 460 int help_main(int argc, char **argv)
 461 {
 462     FUNCTION *fp;
 463     int i, nl;
 464     FUNC_TYPE tp;
 465     char *prog;
 466     HELP_CHOICE o;
 467     DISPLAY_COLUMNS dc;
 468
 469     prog = opt_init(argc, argv, help_options);
 470     while ((o = opt_next()) != OPT_hEOF) {
 471         switch (o) {
 472         case OPT_hERR:
 473         case OPT_hEOF:
 474             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 475             return 1;
 476         case OPT_hHELP:
 477             opt_help(help_options);
 478             return 0;
 479         }
 480     }
 481
 482     if (opt_num_rest() == 1) {
 483         char *new_argv[3];
 484
 485         new_argv[0] = opt_rest()[0];
 486         new_argv[1] = "--help";
 487         new_argv[2] = NULL;
 488         return do_cmd(prog_init(), 2, new_argv);
 489     }
 490     if (opt_num_rest() != 0) {
 491         BIO_printf(bio_err, "Usage: %s\n", prog);
 492         return 1;
 493     }
 494
 495     calculate_columns(&dc);
 496     BIO_printf(bio_err, "Standard commands");
 497     i = 0;
 498     tp = FT_none;
 499     for (fp = functions; fp->name != NULL; fp++) {
 500         nl = 0;
 501         if (i++ % dc.columns == 0) {
 502             BIO_printf(bio_err, "\n");
 503             nl = 1;
 504         }
 505         if (fp->type != tp) {
 506             tp = fp->type;
 507             if (!nl)
 508                 BIO_printf(bio_err, "\n");
 509             if (tp == FT_md) {
 510                 i = 1;
 511                 BIO_printf(bio_err,
 512                            "\nMessage Digest commands (see the `dgst' command for more details)\n");
 513             } else if (tp == FT_cipher) {
 514                 i = 1;
 515                 BIO_printf(bio_err,
 516                            "\nCipher commands (see the `enc' command for more details)\n");
 517             }
 518         }
 519         BIO_printf(bio_err, "%-*s", dc.width, fp->name);
 520     }
 521     BIO_printf(bio_err, "\n\n");
 522     return 0;
 523 }
 524
 525 static void list_type(FUNC_TYPE ft, int one)
 526 {
 527     FUNCTION *fp;
 528     int i = 0;
 529     DISPLAY_COLUMNS dc = {0};
 530
 531     if (!one)
 532         calculate_columns(&dc);
 533
 534     for (fp = functions; fp->name != NULL; fp++) {
 535         if (fp->type != ft)
 536             continue;
 537         if (one) {
 538             BIO_printf(bio_out, "%s\n", fp->name);
 539         } else {
 540             if (i % dc.columns == 0 && i > 0)
 541                 BIO_printf(bio_out, "\n");
 542             BIO_printf(bio_out, "%-*s", dc.width, fp->name);
 543             i++;
 544         }
 545     }
 546     if (!one)
 547         BIO_printf(bio_out, "\n\n");
 548 }
 549
 550 static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[])
 551 {
 552     FUNCTION f, *fp;
 553
 554     if (argc <= 0 || argv[0] == NULL)
 555         return 0;
 556     f.name = argv[0];
 557     fp = lh_FUNCTION_retrieve(prog, &f);
 558     if (fp == NULL) {
 559         if (EVP_get_digestbyname(argv[0])) {
 560             f.type = FT_md;
 561             f.func = dgst_main;
 562             fp = &f;
 563         } else if (EVP_get_cipherbyname(argv[0])) {
 564             f.type = FT_cipher;
 565             f.func = enc_main;
 566             fp = &f;
 567         }
 568     }
 569     if (fp != NULL) {
 570         return fp->func(argc, argv);
 571     }
 572     if ((strncmp(argv[0], "no-", 3)) == 0) {
 573         /*
 574          * User is asking if foo is unsupported, by trying to "run" the
 575          * no-foo command.  Strange.
 576          */
 577         f.name = argv[0] + 3;
 578         if (lh_FUNCTION_retrieve(prog, &f) == NULL) {
 579             BIO_printf(bio_out, "%s\n", argv[0]);
 580             return 0;
 581         }
 582         BIO_printf(bio_out, "%s\n", argv[0] + 3);
 583         return 1;
 584     }
 585     if (strcmp(argv[0], "quit") == 0 || strcmp(argv[0], "q") == 0 ||
 586         strcmp(argv[0], "exit") == 0 || strcmp(argv[0], "bye") == 0)
 587         /* Special value to mean "exit the program. */
 588         return EXIT_THE_PROGRAM;
 589
 590     BIO_printf(bio_err, "Invalid command '%s'; type \"help\" for a list.\n",
 591                argv[0]);
 592     return 1;
 593 }
 594
 595 static void list_pkey(void)
 596 {
 597     int i;
 598
 599     for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
 600         const EVP_PKEY_ASN1_METHOD *ameth;
 601         int pkey_id, pkey_base_id, pkey_flags;
 602         const char *pinfo, *pem_str;
 603         ameth = EVP_PKEY_asn1_get0(i);
 604         EVP_PKEY_asn1_get0_info(&pkey_id, &pkey_base_id, &pkey_flags,
 605                                 &pinfo, &pem_str, ameth);
 606         if (pkey_flags & ASN1_PKEY_ALIAS) {
 607             BIO_printf(bio_out, "Name: %s\n", OBJ_nid2ln(pkey_id));
 608             BIO_printf(bio_out, "\tAlias for: %s\n",
 609                        OBJ_nid2ln(pkey_base_id));
 610         } else {
 611             BIO_printf(bio_out, "Name: %s\n", pinfo);
 612             BIO_printf(bio_out, "\tType: %s Algorithm\n",
 613                        pkey_flags & ASN1_PKEY_DYNAMIC ?
 614                        "External" : "Builtin");
 615             BIO_printf(bio_out, "\tOID: %s\n", OBJ_nid2ln(pkey_id));
 616             if (pem_str == NULL)
 617                 pem_str = "(none)";
 618             BIO_printf(bio_out, "\tPEM string: %s\n", pem_str);
 619         }
 620
 621     }
 622 }
 623
 624 static void list_pkey_meth(void)
 625 {
 626     size_t i;
 627     size_t meth_count = EVP_PKEY_meth_get_count();
 628
 629     for (i = 0; i < meth_count; i++) {
 630         const EVP_PKEY_METHOD *pmeth = EVP_PKEY_meth_get0(i);
 631         int pkey_id, pkey_flags;
 632
 633         EVP_PKEY_meth_get0_info(&pkey_id, &pkey_flags, pmeth);
 634         BIO_printf(bio_out, "%s\n", OBJ_nid2ln(pkey_id));
 635         BIO_printf(bio_out, "\tType: %s Algorithm\n",
 636                    pkey_flags & ASN1_PKEY_DYNAMIC ?  "External" : "Builtin");
 637     }
 638 }
 639
 640 static int function_cmp(const FUNCTION * a, const FUNCTION * b)
 641 {
 642     return strncmp(a->name, b->name, 8);
 643 }
 644
 645 static unsigned long function_hash(const FUNCTION * a)
 646 {
 647     return OPENSSL_LH_strhash(a->name);
 648 }
 649
 650 static int SortFnByName(const void *_f1, const void *_f2)
 651 {
 652     const FUNCTION *f1 = _f1;
 653     const FUNCTION *f2 = _f2;
 654
 655     if (f1->type != f2->type)
 656         return f1->type - f2->type;
 657     return strcmp(f1->name, f2->name);
 658 }
 659
 660 static void list_disabled(void)
 661 {
 662     BIO_puts(bio_out, "Disabled algorithms:\n");
 663 #ifdef OPENSSL_NO_ARIA
 664     BIO_puts(bio_out, "ARIA\n");
 665 #endif
 666 #ifdef OPENSSL_NO_BF
 667     BIO_puts(bio_out, "BF\n");
 668 #endif
 669 #ifdef OPENSSL_NO_BLAKE2
 670     BIO_puts(bio_out, "BLAKE2\n");
 671 #endif
 672 #ifdef OPENSSL_NO_CAMELLIA
 673     BIO_puts(bio_out, "CAMELLIA\n");
 674 #endif
 675 #ifdef OPENSSL_NO_CAST
 676     BIO_puts(bio_out, "CAST\n");
 677 #endif
 678 #ifdef OPENSSL_NO_CMAC
 679     BIO_puts(bio_out, "CMAC\n");
 680 #endif
 681 #ifdef OPENSSL_NO_CMS
 682     BIO_puts(bio_out, "CMS\n");
 683 #endif
 684 #ifdef OPENSSL_NO_COMP
 685     BIO_puts(bio_out, "COMP\n");
 686 #endif
 687 #ifdef OPENSSL_NO_DES
 688     BIO_puts(bio_out, "DES\n");
 689 #endif
 690 #ifdef OPENSSL_NO_DGRAM
 691     BIO_puts(bio_out, "DGRAM\n");
 692 #endif
 693 #ifdef OPENSSL_NO_DH
 694     BIO_puts(bio_out, "DH\n");
 695 #endif
 696 #ifdef OPENSSL_NO_DSA
 697     BIO_puts(bio_out, "DSA\n");
 698 #endif
 699 #if defined(OPENSSL_NO_DTLS)
 700     BIO_puts(bio_out, "DTLS\n");
 701 #endif
 702 #if defined(OPENSSL_NO_DTLS1)
 703     BIO_puts(bio_out, "DTLS1\n");
 704 #endif
 705 #if defined(OPENSSL_NO_DTLS1_2)
 706     BIO_puts(bio_out, "DTLS1_2\n");
 707 #endif
 708 #ifdef OPENSSL_NO_EC
 709     BIO_puts(bio_out, "EC\n");
 710 #endif
 711 #ifdef OPENSSL_NO_EC2M
 712     BIO_puts(bio_out, "EC2M\n");
 713 #endif
 714 #ifdef OPENSSL_NO_ENGINE
 715     BIO_puts(bio_out, "ENGINE\n");
 716 #endif
 717 #ifdef OPENSSL_NO_GOST
 718     BIO_puts(bio_out, "GOST\n");
 719 #endif
 720 #ifdef OPENSSL_NO_HEARTBEATS
 721     BIO_puts(bio_out, "HEARTBEATS\n");
 722 #endif
 723 #ifdef OPENSSL_NO_IDEA
 724     BIO_puts(bio_out, "IDEA\n");
 725 #endif
 726 #ifdef OPENSSL_NO_MD2
 727     BIO_puts(bio_out, "MD2\n");
 728 #endif
 729 #ifdef OPENSSL_NO_MD4
 730     BIO_puts(bio_out, "MD4\n");
 731 #endif
 732 #ifdef OPENSSL_NO_MD5
 733     BIO_puts(bio_out, "MD5\n");
 734 #endif
 735 #ifdef OPENSSL_NO_MDC2
 736     BIO_puts(bio_out, "MDC2\n");
 737 #endif
 738 #ifdef OPENSSL_NO_OCB
 739     BIO_puts(bio_out, "OCB\n");
 740 #endif
 741 #ifdef OPENSSL_NO_OCSP
 742     BIO_puts(bio_out, "OCSP\n");
 743 #endif
 744 #ifdef OPENSSL_NO_PSK
 745     BIO_puts(bio_out, "PSK\n");
 746 #endif
 747 #ifdef OPENSSL_NO_RC2
 748     BIO_puts(bio_out, "RC2\n");
 749 #endif
 750 #ifdef OPENSSL_NO_RC4
 751     BIO_puts(bio_out, "RC4\n");
 752 #endif
 753 #ifdef OPENSSL_NO_RC5
 754     BIO_puts(bio_out, "RC5\n");
 755 #endif
 756 #ifdef OPENSSL_NO_RMD160
 757     BIO_puts(bio_out, "RMD160\n");
 758 #endif
 759 #ifdef OPENSSL_NO_RSA
 760     BIO_puts(bio_out, "RSA\n");
 761 #endif
 762 #ifdef OPENSSL_NO_SCRYPT
 763     BIO_puts(bio_out, "SCRYPT\n");
 764 #endif
 765 #ifdef OPENSSL_NO_SCTP
 766     BIO_puts(bio_out, "SCTP\n");
 767 #endif
 768 #ifdef OPENSSL_NO_SEED
 769     BIO_puts(bio_out, "SEED\n");
 770 #endif
 771 #ifdef OPENSSL_NO_SM2
 772     BIO_puts(bio_out, "SM2\n");
 773 #endif
 774 #ifdef OPENSSL_NO_SM3
 775     BIO_puts(bio_out, "SM3\n");
 776 #endif
 777 #ifdef OPENSSL_NO_SM4
 778     BIO_puts(bio_out, "SM4\n");
 779 #endif
 780 #ifdef OPENSSL_NO_SOCK
 781     BIO_puts(bio_out, "SOCK\n");
 782 #endif
 783 #ifdef OPENSSL_NO_SRP
 784     BIO_puts(bio_out, "SRP\n");
 785 #endif
 786 #ifdef OPENSSL_NO_SRTP
 787     BIO_puts(bio_out, "SRTP\n");
 788 #endif
 789 #ifdef OPENSSL_NO_SSL3
 790     BIO_puts(bio_out, "SSL3\n");
 791 #endif
 792 #ifdef OPENSSL_NO_TLS1
 793     BIO_puts(bio_out, "TLS1\n");
 794 #endif
 795 #ifdef OPENSSL_NO_TLS1_1
 796     BIO_puts(bio_out, "TLS1_1\n");
 797 #endif
 798 #ifdef OPENSSL_NO_TLS1_2
 799     BIO_puts(bio_out, "TLS1_2\n");
 800 #endif
 801 #ifdef OPENSSL_NO_WHIRLPOOL
 802     BIO_puts(bio_out, "WHIRLPOOL\n");
 803 #endif
 804 #ifndef ZLIB
 805     BIO_puts(bio_out, "ZLIB\n");
 806 #endif
 807 }
 808
 809 static LHASH_OF(FUNCTION) *prog_init(void)
 810 {
 811     static LHASH_OF(FUNCTION) *ret = NULL;
 812     static int prog_inited = 0;
 813     FUNCTION *f;
 814     size_t i;
 815
 816     if (prog_inited)
 817         return ret;
 818
 819     prog_inited = 1;
 820
 821     /* Sort alphabetically within category. For nicer help displays. */
 822     for (i = 0, f = functions; f->name != NULL; ++f, ++i)
 823         ;
 824     qsort(functions, i, sizeof(*functions), SortFnByName);
 825
 826     if ((ret = lh_FUNCTION_new(function_hash, function_cmp)) == NULL)
 827         return NULL;
 828
 829     for (f = functions; f->name != NULL; f++)
 830         (void)lh_FUNCTION_insert(ret, f);
 831     return ret;
 832 }