apps/openssl.c

   1 /*
   2  * Copyright 1995-2017 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 <stdio.h>
  11 #include <string.h>
  12 #include <stdlib.h>
  13 #include <openssl/bio.h>
  14 #include <openssl/crypto.h>
  15 #include <openssl/lhash.h>
  16 #include <openssl/conf.h>
  17 #include <openssl/x509.h>
  18 #include <openssl/pem.h>
  19 #include <openssl/ssl.h>
  20 #ifndef OPENSSL_NO_ENGINE
  21 # include <openssl/engine.h>
  22 #endif
  23 #include <openssl/err.h>
  24 #define USE_SOCKETS /* needed for the _O_BINARY defs in the MS world */
  25 #include "s_apps.h"
  26 /* Needed to get the other O_xxx flags. */
  27 #ifdef OPENSSL_SYS_VMS
  28 # include <unixio.h>
  29 #endif
  30 #define INCLUDE_FUNCTION_TABLE
  31 #include "apps.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  45  * The LHASH callbacks ("hash" & "cmp") have been replaced by functions with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()
  77 {
  78 #ifdef SIGPIPE
  79     signal(SIGPIPE, SIG_IGN);
  80 #endif
  81
  82     /* Set non-default library initialisation settings */
  83     if (!OPENSSL_init_crypto(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()
  93 {
  94     destroy_ui_method();
  95 }
  96
  97 static char *make_config_name()
  98 {
  99     const char *t;
 100     size_t len;
 101     char *p;
 102
 103     if ((t = getenv("OPENSSL_CONF")) != NULL)
 104         return OPENSSL_strdup(t);
 105
 106     t = X509_get_default_cert_area();
 107     len = strlen(t) + 1 + strlen(OPENSSL_CONF) + 1;
 108     p = app_malloc(len, "config filename buffer");
 109     strcpy(p, t);
 110 #ifndef OPENSSL_SYS_VMS
 111     strcat(p, "/");
 112 #endif
 113     strcat(p, OPENSSL_CONF);
 114
 115     return p;
 116 }
 117
 118 int main(int argc, char *argv[])
 119 {
 120     FUNCTION f, *fp;
 121     LHASH_OF(FUNCTION) *prog = NULL;
 122     char **copied_argv = NULL;
 123     char *p, *pname;
 124     char buf[1024];
 125     const char *prompt;
 126     ARGS arg;
 127     int first, n, i, ret = 0;
 128
 129     arg.argv = NULL;
 130     arg.size = 0;
 131
 132     /* Set up some of the environment. */
 133     default_config_file = make_config_name();
 134     bio_in = dup_bio_in(FORMAT_TEXT);
 135     bio_out = dup_bio_out(FORMAT_TEXT);
 136     bio_err = dup_bio_err(FORMAT_TEXT);
 137
 138 #if defined(OPENSSL_SYS_VMS) && defined(__DECC)
 139     copied_argv = argv = copy_argv(&argc, argv);
 140 #elif defined(_WIN32)
 141     /*
 142      * Replace argv[] with UTF-8 encoded strings.
 143      */
 144     win32_utf8argv(&argc, &argv);
 145 #endif
 146
 147     p = getenv("OPENSSL_DEBUG_MEMORY");
 148     if (p != NULL && strcmp(p, "on") == 0)
 149         CRYPTO_set_mem_debug(1);
 150     CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 151
 152     if (getenv("OPENSSL_FIPS")) {
 153         BIO_printf(bio_err, "FIPS mode not supported.\n");
 154         return 1;
 155     }
 156
 157     if (!apps_startup()) {
 158         BIO_printf(bio_err,
 159                    "FATAL: Startup failure (dev note: apps_startup() failed)\n");
 160         ERR_print_errors(bio_err);
 161         ret = 1;
 162         goto end;
 163     }
 164
 165     prog = prog_init();
 166     pname = opt_progname(argv[0]);
 167
 168     /* first check the program name */
 169     f.name = pname;
 170     fp = lh_FUNCTION_retrieve(prog, &f);
 171     if (fp != NULL) {
 172         argv[0] = pname;
 173         ret = fp->func(argc, argv);
 174         goto end;
 175     }
 176
 177     /* If there is stuff on the command line, run with that. */
 178     if (argc != 1) {
 179         argc--;
 180         argv++;
 181         ret = do_cmd(prog, argc, argv);
 182         if (ret < 0)
 183             ret = 0;
 184         goto end;
 185     }
 186
 187     /* ok, lets enter interactive mode */
 188     for (;;) {
 189         ret = 0;
 190         /* Read a line, continue reading if line ends with \ */
 191         for (p = buf, n = sizeof buf, i = 0, first = 1; n > 0; first = 0) {
 192             prompt = first ? "OpenSSL> " : "> ";
 193             p[0] = '\0';
 194 #ifndef READLINE
 195             fputs(prompt, stdout);
 196             fflush(stdout);
 197             if (!fgets(p, n, stdin))
 198                 goto end;
 199             if (p[0] == '\0')
 200                 goto end;
 201             i = strlen(p);
 202             if (i <= 1)
 203                 break;
 204             if (p[i - 2] != '\\')
 205                 break;
 206             i -= 2;
 207             p += i;
 208             n -= i;
 209 #else
 210             {
 211                 extern char *readline(const char *);
 212                 extern void add_history(const char *cp);
 213                 char *text;
 214
 215                 text = readline(prompt);
 216                 if (text == NULL)
 217                     goto end;
 218                 i = strlen(text);
 219                 if (i == 0 || i > n)
 220                     break;
 221                 if (text[i - 1] != '\\') {
 222                     p += strlen(strcpy(p, text));
 223                     free(text);
 224                     add_history(buf);
 225                     break;
 226                 }
 227
 228                 text[i - 1] = '\0';
 229                 p += strlen(strcpy(p, text));
 230                 free(text);
 231                 n -= i;
 232             }
 233 #endif
 234         }
 235
 236         if (!chopup_args(&arg, buf)) {
 237             BIO_printf(bio_err, "Can't parse (no memory?)\n");
 238             break;
 239         }
 240
 241         ret = do_cmd(prog, arg.argc, arg.argv);
 242         if (ret == EXIT_THE_PROGRAM) {
 243             ret = 0;
 244             goto end;
 245         }
 246         if (ret != 0)
 247             BIO_printf(bio_err, "error in %s\n", arg.argv[0]);
 248         (void)BIO_flush(bio_out);
 249         (void)BIO_flush(bio_err);
 250     }
 251     ret = 1;
 252  end:
 253     OPENSSL_free(copied_argv);
 254     OPENSSL_free(default_config_file);
 255     lh_FUNCTION_free(prog);
 256     OPENSSL_free(arg.argv);
 257     app_RAND_write();
 258
 259     BIO_free(bio_in);
 260     BIO_free_all(bio_out);
 261     apps_shutdown();
 262 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
 263     if (CRYPTO_mem_leaks(bio_err) <= 0)
 264         ret = 1;
 265 #endif
 266     BIO_free(bio_err);
 267     EXIT(ret);
 268 }
 269
 270 const OPTIONS exit_options[] = {
 271     {NULL}
 272 };
 273
 274 static void list_cipher_fn(const EVP_CIPHER *c,
 275                            const char *from, const char *to, void *arg)
 276 {
 277     if (c != NULL) {
 278         BIO_printf(arg, "%s\n", EVP_CIPHER_name(c));
 279     } else {
 280         if (from == NULL)
 281             from = "<undefined>";
 282         if (to == NULL)
 283             to = "<undefined>";
 284         BIO_printf(arg, "%s => %s\n", from, to);
 285     }
 286 }
 287
 288 static void list_md_fn(const EVP_MD *m,
 289                        const char *from, const char *to, void *arg)
 290 {
 291     if (m != NULL) {
 292         BIO_printf(arg, "%s\n", EVP_MD_name(m));
 293     } else {
 294         if (from == NULL)
 295             from = "<undefined>";
 296         if (to == NULL)
 297             to = "<undefined>";
 298         BIO_printf((BIO *)arg, "%s => %s\n", from, to);
 299     }
 300 }
 301
 302 static void list_missing_help(void)
 303 {
 304     const FUNCTION *fp;
 305     const OPTIONS *o;
 306
 307     for (fp = functions; fp->name != NULL; fp++) {
 308         if ((o = fp->help) != NULL) {
 309             /* If there is help, list what flags are not documented. */
 310             for ( ; o->name != NULL; o++) {
 311                 if (o->helpstr == NULL)
 312                     BIO_printf(bio_out, "%s %s\n", fp->name, o->name);
 313             }
 314         } else if (fp->func != dgst_main) {
 315             /* If not aliased to the dgst command, */
 316             BIO_printf(bio_out, "%s *\n", fp->name);
 317         }
 318     }
 319 }
 320
 321 static void list_options_for_command(const char *command)
 322 {
 323     const FUNCTION *fp;
 324     const OPTIONS *o;
 325
 326     for (fp = functions; fp->name != NULL; fp++)
 327         if (strcmp(fp->name, command) == 0)
 328             break;
 329     if (fp->name == NULL) {
 330         BIO_printf(bio_err, "Invalid command '%s'; type \"help\" for a list.\n",
 331                 command);
 332         return;
 333     }
 334
 335     if ((o = fp->help) == NULL)
 336         return;
 337
 338     for ( ; o->name != NULL; o++) {
 339         if (o->name == OPT_HELP_STR
 340                 || o->name == OPT_MORE_STR
 341                 || o->name[0] == '\0')
 342             continue;
 343         BIO_printf(bio_out, "%s %c\n", o->name, o->valtype);
 344     }
 345 }
 346
 347
 348 /* Unified enum for help and list commands. */
 349 typedef enum HELPLIST_CHOICE {
 350     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_ONE,
 351     OPT_COMMANDS, OPT_DIGEST_COMMANDS, OPT_OPTIONS,
 352     OPT_DIGEST_ALGORITHMS, OPT_CIPHER_COMMANDS, OPT_CIPHER_ALGORITHMS,
 353     OPT_PK_ALGORITHMS, OPT_PK_METHOD, OPT_DISABLED, OPT_MISSING_HELP
 354 } HELPLIST_CHOICE;
 355
 356 const OPTIONS list_options[] = {
 357     {"help", OPT_HELP, '-', "Display this summary"},
 358     {"1", OPT_ONE, '-', "List in one column"},
 359     {"commands", OPT_COMMANDS, '-', "List of standard commands"},
 360     {"digest-commands", OPT_DIGEST_COMMANDS, '-',
 361      "List of message digest commands"},
 362     {"digest-algorithms", OPT_DIGEST_ALGORITHMS, '-',
 363      "List of message digest algorithms"},
 364     {"cipher-commands", OPT_CIPHER_COMMANDS, '-', "List of cipher commands"},
 365     {"cipher-algorithms", OPT_CIPHER_ALGORITHMS, '-',
 366      "List of cipher algorithms"},
 367     {"public-key-algorithms", OPT_PK_ALGORITHMS, '-',
 368      "List of public key algorithms"},
 369     {"public-key-methods", OPT_PK_METHOD, '-',
 370      "List of public key methods"},
 371     {"disabled", OPT_DISABLED, '-',
 372      "List of disabled features"},
 373     {"missing-help", OPT_MISSING_HELP, '-',
 374      "List missing detailed help strings"},
 375     {"options", OPT_OPTIONS, 's',
 376      "List options for specified command"},
 377     {NULL}
 378 };
 379
 380 int list_main(int argc, char **argv)
 381 {
 382     char *prog;
 383     HELPLIST_CHOICE o;
 384     int one = 0, done = 0;
 385
 386     prog = opt_init(argc, argv, list_options);
 387     while ((o = opt_next()) != OPT_EOF) {
 388         switch (o) {
 389         case OPT_EOF:  /* Never hit, but suppresses warning */
 390         case OPT_ERR:
 391 opthelp:
 392             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 393             return 1;
 394         case OPT_HELP:
 395             opt_help(list_options);
 396             break;
 397         case OPT_ONE:
 398             one = 1;
 399             break;
 400         case OPT_COMMANDS:
 401             list_type(FT_general, one);
 402             break;
 403         case OPT_DIGEST_COMMANDS:
 404             list_type(FT_md, one);
 405             break;
 406         case OPT_DIGEST_ALGORITHMS:
 407             EVP_MD_do_all_sorted(list_md_fn, bio_out);
 408             break;
 409         case OPT_CIPHER_COMMANDS:
 410             list_type(FT_cipher, one);
 411             break;
 412         case OPT_CIPHER_ALGORITHMS:
 413             EVP_CIPHER_do_all_sorted(list_cipher_fn, bio_out);
 414             break;
 415         case OPT_PK_ALGORITHMS:
 416             list_pkey();
 417             break;
 418         case OPT_PK_METHOD:
 419             list_pkey_meth();
 420             break;
 421         case OPT_DISABLED:
 422             list_disabled();
 423             break;
 424         case OPT_MISSING_HELP:
 425             list_missing_help();
 426             break;
 427         case OPT_OPTIONS:
 428             list_options_for_command(opt_arg());
 429             break;
 430         }
 431         done = 1;
 432     }
 433     if (opt_num_rest() != 0) {
 434         BIO_printf(bio_err, "Extra arguments given.\n");
 435         goto opthelp;
 436     }
 437
 438     if (!done)
 439         goto opthelp;
 440
 441     return 0;
 442 }
 443
 444 typedef enum HELP_CHOICE {
 445     OPT_hERR = -1, OPT_hEOF = 0, OPT_hHELP
 446 } HELP_CHOICE;
 447
 448 const OPTIONS help_options[] = {
 449     {"help", OPT_hHELP, '-', "Display this summary"},
 450     {NULL}
 451 };
 452
 453
 454 int help_main(int argc, char **argv)
 455 {
 456     FUNCTION *fp;
 457     int i, nl;
 458     FUNC_TYPE tp;
 459     char *prog;
 460     HELP_CHOICE o;
 461     DISPLAY_COLUMNS dc;
 462
 463     prog = opt_init(argc, argv, help_options);
 464     while ((o = opt_next()) != OPT_hEOF) {
 465         switch (o) {
 466         case OPT_hERR:
 467         case OPT_hEOF:
 468             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 469             return 1;
 470         case OPT_hHELP:
 471             opt_help(help_options);
 472             return 0;
 473         }
 474     }
 475
 476     if (opt_num_rest() != 0) {
 477         BIO_printf(bio_err, "Usage: %s\n", prog);
 478         return 1;
 479     }
 480
 481     calculate_columns(&dc);
 482     BIO_printf(bio_err, "Standard commands");
 483     i = 0;
 484     tp = FT_none;
 485     for (fp = functions; fp->name != NULL; fp++) {
 486         nl = 0;
 487         if (i++ % dc.columns == 0) {
 488             BIO_printf(bio_err, "\n");
 489             nl = 1;
 490         }
 491         if (fp->type != tp) {
 492             tp = fp->type;
 493             if (!nl)
 494                 BIO_printf(bio_err, "\n");
 495             if (tp == FT_md) {
 496                 i = 1;
 497                 BIO_printf(bio_err,
 498                            "\nMessage Digest commands (see the `dgst' command for more details)\n");
 499             } else if (tp == FT_cipher) {
 500                 i = 1;
 501                 BIO_printf(bio_err,
 502                            "\nCipher commands (see the `enc' command for more details)\n");
 503             }
 504         }
 505         BIO_printf(bio_err, "%-*s", dc.width, fp->name);
 506     }
 507     BIO_printf(bio_err, "\n\n");
 508     return 0;
 509 }
 510
 511 int exit_main(int argc, char **argv)
 512 {
 513     return EXIT_THE_PROGRAM;
 514 }
 515
 516 static void list_type(FUNC_TYPE ft, int one)
 517 {
 518     FUNCTION *fp;
 519     int i = 0;
 520     DISPLAY_COLUMNS dc;
 521
 522     if (!one)
 523         calculate_columns(&dc);
 524
 525     for (fp = functions; fp->name != NULL; fp++) {
 526         if (fp->type != ft)
 527             continue;
 528         if (one) {
 529             BIO_printf(bio_out, "%s\n", fp->name);
 530         } else {
 531             if (i % dc.columns == 0 && i > 0)
 532                 BIO_printf(bio_out, "\n");
 533             BIO_printf(bio_out, "%-*s", dc.width, fp->name);
 534             i++;
 535         }
 536     }
 537     if (!one)
 538         BIO_printf(bio_out, "\n\n");
 539 }
 540
 541 static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[])
 542 {
 543     FUNCTION f, *fp;
 544
 545     if (argc <= 0 || argv[0] == NULL)
 546         return (0);
 547     f.name = argv[0];
 548     fp = lh_FUNCTION_retrieve(prog, &f);
 549     if (fp == NULL) {
 550         if (EVP_get_digestbyname(argv[0])) {
 551             f.type = FT_md;
 552             f.func = dgst_main;
 553             fp = &f;
 554         } else if (EVP_get_cipherbyname(argv[0])) {
 555             f.type = FT_cipher;
 556             f.func = enc_main;
 557             fp = &f;
 558         }
 559     }
 560     if (fp != NULL) {
 561         return (fp->func(argc, argv));
 562     }
 563     if ((strncmp(argv[0], "no-", 3)) == 0) {
 564         /*
 565          * User is asking if foo is unsupported, by trying to "run" the
 566          * no-foo command.  Strange.
 567          */
 568         f.name = argv[0] + 3;
 569         if (lh_FUNCTION_retrieve(prog, &f) == NULL) {
 570             BIO_printf(bio_out, "%s\n", argv[0]);
 571             return (0);
 572         }
 573         BIO_printf(bio_out, "%s\n", argv[0] + 3);
 574         return 1;
 575     }
 576     if (strcmp(argv[0], "quit") == 0 || strcmp(argv[0], "q") == 0 ||
 577         strcmp(argv[0], "exit") == 0 || strcmp(argv[0], "bye") == 0)
 578         /* Special value to mean "exit the program. */
 579         return EXIT_THE_PROGRAM;
 580
 581     BIO_printf(bio_err, "Invalid command '%s'; type \"help\" for a list.\n",
 582                argv[0]);
 583     return (1);
 584 }
 585
 586 static void list_pkey(void)
 587 {
 588     int i;
 589
 590     for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
 591         const EVP_PKEY_ASN1_METHOD *ameth;
 592         int pkey_id, pkey_base_id, pkey_flags;
 593         const char *pinfo, *pem_str;
 594         ameth = EVP_PKEY_asn1_get0(i);
 595         EVP_PKEY_asn1_get0_info(&pkey_id, &pkey_base_id, &pkey_flags,
 596                                 &pinfo, &pem_str, ameth);
 597         if (pkey_flags & ASN1_PKEY_ALIAS) {
 598             BIO_printf(bio_out, "Name: %s\n", OBJ_nid2ln(pkey_id));
 599             BIO_printf(bio_out, "\tAlias for: %s\n",
 600                        OBJ_nid2ln(pkey_base_id));
 601         } else {
 602             BIO_printf(bio_out, "Name: %s\n", pinfo);
 603             BIO_printf(bio_out, "\tType: %s Algorithm\n",
 604                        pkey_flags & ASN1_PKEY_DYNAMIC ?
 605                        "External" : "Builtin");
 606             BIO_printf(bio_out, "\tOID: %s\n", OBJ_nid2ln(pkey_id));
 607             if (pem_str == NULL)
 608                 pem_str = "(none)";
 609             BIO_printf(bio_out, "\tPEM string: %s\n", pem_str);
 610         }
 611
 612     }
 613 }
 614
 615 static void list_pkey_meth(void)
 616 {
 617     size_t i;
 618     size_t meth_count = EVP_PKEY_meth_get_count();
 619
 620     for (i = 0; i < meth_count; i++) {
 621         const EVP_PKEY_METHOD *pmeth = EVP_PKEY_meth_get0(i);
 622         int pkey_id, pkey_flags;
 623
 624         EVP_PKEY_meth_get0_info(&pkey_id, &pkey_flags, pmeth);
 625         BIO_printf(bio_out, "%s\n", OBJ_nid2ln(pkey_id));
 626         BIO_printf(bio_out, "\tType: %s Algorithm\n",
 627                    pkey_flags & ASN1_PKEY_DYNAMIC ?  "External" : "Builtin");
 628     }
 629 }
 630
 631 static int function_cmp(const FUNCTION * a, const FUNCTION * b)
 632 {
 633     return strncmp(a->name, b->name, 8);
 634 }
 635
 636 static unsigned long function_hash(const FUNCTION * a)
 637 {
 638     return OPENSSL_LH_strhash(a->name);
 639 }
 640
 641 static int SortFnByName(const void *_f1, const void *_f2)
 642 {
 643     const FUNCTION *f1 = _f1;
 644     const FUNCTION *f2 = _f2;
 645
 646     if (f1->type != f2->type)
 647         return f1->type - f2->type;
 648     return strcmp(f1->name, f2->name);
 649 }
 650
 651 static void list_disabled(void)
 652 {
 653     BIO_puts(bio_out, "Disabled algorithms:\n");
 654 #ifdef OPENSSL_NO_ARIA
 655     BIO_puts(bio_out, "ARIA\n");
 656 #endif
 657 #ifdef OPENSSL_NO_BF
 658     BIO_puts(bio_out, "BF\n");
 659 #endif
 660 #ifdef OPENSSL_NO_BLAKE2
 661     BIO_puts(bio_out, "BLAKE2\n");
 662 #endif
 663 #ifdef OPENSSL_NO_CAMELLIA
 664     BIO_puts(bio_out, "CAMELLIA\n");
 665 #endif
 666 #ifdef OPENSSL_NO_CAST
 667     BIO_puts(bio_out, "CAST\n");
 668 #endif
 669 #ifdef OPENSSL_NO_CMAC
 670     BIO_puts(bio_out, "CMAC\n");
 671 #endif
 672 #ifdef OPENSSL_NO_CMS
 673     BIO_puts(bio_out, "CMS\n");
 674 #endif
 675 #ifdef OPENSSL_NO_COMP
 676     BIO_puts(bio_out, "COMP\n");
 677 #endif
 678 #ifdef OPENSSL_NO_DES
 679     BIO_puts(bio_out, "DES\n");
 680 #endif
 681 #ifdef OPENSSL_NO_DGRAM
 682     BIO_puts(bio_out, "DGRAM\n");
 683 #endif
 684 #ifdef OPENSSL_NO_DH
 685     BIO_puts(bio_out, "DH\n");
 686 #endif
 687 #ifdef OPENSSL_NO_DSA
 688     BIO_puts(bio_out, "DSA\n");
 689 #endif
 690 #if defined(OPENSSL_NO_DTLS)
 691     BIO_puts(bio_out, "DTLS\n");
 692 #endif
 693 #if defined(OPENSSL_NO_DTLS1)
 694     BIO_puts(bio_out, "DTLS1\n");
 695 #endif
 696 #if defined(OPENSSL_NO_DTLS1_2)
 697     BIO_puts(bio_out, "DTLS1_2\n");
 698 #endif
 699 #ifdef OPENSSL_NO_EC
 700     BIO_puts(bio_out, "EC\n");
 701 #endif
 702 #ifdef OPENSSL_NO_EC2M
 703     BIO_puts(bio_out, "EC2M\n");
 704 #endif
 705 #ifdef OPENSSL_NO_ENGINE
 706     BIO_puts(bio_out, "ENGINE\n");
 707 #endif
 708 #ifdef OPENSSL_NO_GOST
 709     BIO_puts(bio_out, "GOST\n");
 710 #endif
 711 #ifdef OPENSSL_NO_HEARTBEATS
 712     BIO_puts(bio_out, "HEARTBEATS\n");
 713 #endif
 714 #ifdef OPENSSL_NO_IDEA
 715     BIO_puts(bio_out, "IDEA\n");
 716 #endif
 717 #ifdef OPENSSL_NO_MD2
 718     BIO_puts(bio_out, "MD2\n");
 719 #endif
 720 #ifdef OPENSSL_NO_MD4
 721     BIO_puts(bio_out, "MD4\n");
 722 #endif
 723 #ifdef OPENSSL_NO_MD5
 724     BIO_puts(bio_out, "MD5\n");
 725 #endif
 726 #ifdef OPENSSL_NO_MDC2
 727     BIO_puts(bio_out, "MDC2\n");
 728 #endif
 729 #ifdef OPENSSL_NO_OCB
 730     BIO_puts(bio_out, "OCB\n");
 731 #endif
 732 #ifdef OPENSSL_NO_OCSP
 733     BIO_puts(bio_out, "OCSP\n");
 734 #endif
 735 #ifdef OPENSSL_NO_PSK
 736     BIO_puts(bio_out, "PSK\n");
 737 #endif
 738 #ifdef OPENSSL_NO_RC2
 739     BIO_puts(bio_out, "RC2\n");
 740 #endif
 741 #ifdef OPENSSL_NO_RC4
 742     BIO_puts(bio_out, "RC4\n");
 743 #endif
 744 #ifdef OPENSSL_NO_RC5
 745     BIO_puts(bio_out, "RC5\n");
 746 #endif
 747 #ifdef OPENSSL_NO_RMD160
 748     BIO_puts(bio_out, "RMD160\n");
 749 #endif
 750 #ifdef OPENSSL_NO_RSA
 751     BIO_puts(bio_out, "RSA\n");
 752 #endif
 753 #ifdef OPENSSL_NO_SCRYPT
 754     BIO_puts(bio_out, "SCRYPT\n");
 755 #endif
 756 #ifdef OPENSSL_NO_SCTP
 757     BIO_puts(bio_out, "SCTP\n");
 758 #endif
 759 #ifdef OPENSSL_NO_SEED
 760     BIO_puts(bio_out, "SEED\n");
 761 #endif
 762 #ifdef OPENSSL_NO_SOCK
 763     BIO_puts(bio_out, "SOCK\n");
 764 #endif
 765 #ifdef OPENSSL_NO_SRP
 766     BIO_puts(bio_out, "SRP\n");
 767 #endif
 768 #ifdef OPENSSL_NO_SRTP
 769     BIO_puts(bio_out, "SRTP\n");
 770 #endif
 771 #ifdef OPENSSL_NO_SSL3
 772     BIO_puts(bio_out, "SSL3\n");
 773 #endif
 774 #ifdef OPENSSL_NO_TLS1
 775     BIO_puts(bio_out, "TLS1\n");
 776 #endif
 777 #ifdef OPENSSL_NO_TLS1_1
 778     BIO_puts(bio_out, "TLS1_1\n");
 779 #endif
 780 #ifdef OPENSSL_NO_TLS1_2
 781     BIO_puts(bio_out, "TLS1_2\n");
 782 #endif
 783 #ifdef OPENSSL_NO_WHIRLPOOL
 784     BIO_puts(bio_out, "WHIRLPOOL\n");
 785 #endif
 786 #ifndef ZLIB
 787     BIO_puts(bio_out, "ZLIB\n");
 788 #endif
 789 }
 790
 791 static LHASH_OF(FUNCTION) *prog_init(void)
 792 {
 793     LHASH_OF(FUNCTION) *ret;
 794     FUNCTION *f;
 795     size_t i;
 796
 797     /* Sort alphabetically within category. For nicer help displays. */
 798     for (i = 0, f = functions; f->name != NULL; ++f, ++i) ;
 799     qsort(functions, i, sizeof(*functions), SortFnByName);
 800
 801     if ((ret = lh_FUNCTION_new(function_hash, function_cmp)) == NULL)
 802         return (NULL);
 803
 804     for (f = functions; f->name != NULL; f++)
 805         (void)lh_FUNCTION_insert(ret, f);
 806     return ret;
 807 }