apps/openssl.c

   1 /*
   2  * Copyright 1995-2018 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 #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 #include "apps.h"
  31 #define INCLUDE_FUNCTION_TABLE
  32 #include "progs.h"
  33
  34 /* Structure to hold the number of columns to be displayed and the
  35  * field width used to display them.
  36  */
  37 typedef struct {
  38     int columns;
  39     int width;
  40 } DISPLAY_COLUMNS;
  41
  42 /* Special sentinel to exit the program. */
  43 #define EXIT_THE_PROGRAM (-1)
  44
  45 /*
  46  * The LHASH callbacks ("hash" & "cmp") have been replaced by functions with
  47  * the base prototypes (we cast each variable inside the function to the
  48  * required type of "FUNCTION*"). This removes the necessity for
  49  * macro-generated wrapper functions.
  50  */
  51 static LHASH_OF(FUNCTION) *prog_init(void);
  52 static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[]);
  53 static void list_pkey(void);
  54 static void list_pkey_meth(void);
  55 static void list_type(FUNC_TYPE ft, int one);
  56 static void list_disabled(void);
  57 char *default_config_file = NULL;
  58
  59 BIO *bio_in = NULL;
  60 BIO *bio_out = NULL;
  61 BIO *bio_err = NULL;
  62
  63 static void calculate_columns(DISPLAY_COLUMNS *dc)
  64 {
  65     FUNCTION *f;
  66     int len, maxlen = 0;
  67
  68     for (f = functions; f->name != NULL; ++f)
  69         if (f->type == FT_general || f->type == FT_md || f->type == FT_cipher)
  70             if ((len = strlen(f->name)) > maxlen)
  71                 maxlen = len;
  72
  73     dc->width = maxlen + 2;
  74     dc->columns = (80 - 1) / dc->width;
  75 }
  76
  77 static int apps_startup()
  78 {
  79 #ifdef SIGPIPE
  80     signal(SIGPIPE, SIG_IGN);
  81 #endif
  82
  83     /* Set non-default library initialisation settings */
  84     if (!OPENSSL_init_ssl(OPENSSL_INIT_ENGINE_ALL_BUILTIN
  85                           | OPENSSL_INIT_LOAD_CONFIG, NULL))
  86         return 0;
  87
  88     setup_ui_method();
  89
  90     return 1;
  91 }
  92
  93 static void apps_shutdown()
  94 {
  95     destroy_ui_method();
  96     destroy_prefix_method();
  97 }
  98
  99 static char *make_config_name()
 100 {
 101     const char *t;
 102     size_t len;
 103     char *p;
 104
 105     if ((t = getenv("OPENSSL_CONF")) != NULL)
 106         return OPENSSL_strdup(t);
 107
 108     t = X509_get_default_cert_area();
 109     len = strlen(t) + 1 + strlen(OPENSSL_CONF) + 1;
 110     p = app_malloc(len, "config filename buffer");
 111     strcpy(p, t);
 112 #ifndef OPENSSL_SYS_VMS
 113     strcat(p, "/");
 114 #endif
 115     strcat(p, OPENSSL_CONF);
 116
 117     return p;
 118 }
 119
 120 int main(int argc, char *argv[])
 121 {
 122     FUNCTION f, *fp;
 123     LHASH_OF(FUNCTION) *prog = NULL;
 124     char **copied_argv = NULL;
 125     char *p, *pname;
 126     char buf[1024];
 127     const char *prompt;
 128     ARGS arg;
 129     int first, n, i, ret = 0;
 130
 131     arg.argv = NULL;
 132     arg.size = 0;
 133
 134     /* Set up some of the environment. */
 135     default_config_file = make_config_name();
 136     bio_in = dup_bio_in(FORMAT_TEXT);
 137     bio_out = dup_bio_out(FORMAT_TEXT);
 138     bio_err = dup_bio_err(FORMAT_TEXT);
 139
 140 #if defined(OPENSSL_SYS_VMS) && defined(__DECC)
 141     copied_argv = argv = copy_argv(&argc, argv);
 142 #elif defined(_WIN32)
 143     /*
 144      * Replace argv[] with UTF-8 encoded strings.
 145      */
 146     win32_utf8argv(&argc, &argv);
 147 #endif
 148
 149     p = getenv("OPENSSL_DEBUG_MEMORY");
 150     if (p != NULL && strcmp(p, "on") == 0)
 151         CRYPTO_set_mem_debug(1);
 152     CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 153
 154     if (getenv("OPENSSL_FIPS")) {
 155         BIO_printf(bio_err, "FIPS mode not supported.\n");
 156         return 1;
 157     }
 158
 159     if (!apps_startup()) {
 160         BIO_printf(bio_err,
 161                    "FATAL: Startup failure (dev note: apps_startup() failed)\n");
 162         ERR_print_errors(bio_err);
 163         ret = 1;
 164         goto end;
 165     }
 166
 167     prog = prog_init();
 168     pname = opt_progname(argv[0]);
 169
 170     /* first check the program name */
 171     f.name = pname;
 172     fp = lh_FUNCTION_retrieve(prog, &f);
 173     if (fp != NULL) {
 174         argv[0] = pname;
 175         ret = fp->func(argc, argv);
 176         goto end;
 177     }
 178
 179     /* If there is stuff on the command line, run with that. */
 180     if (argc != 1) {
 181         argc--;
 182         argv++;
 183         ret = do_cmd(prog, argc, argv);
 184         if (ret < 0)
 185             ret = 0;
 186         goto end;
 187     }
 188
 189     /* ok, lets enter interactive mode */
 190     for (;;) {
 191         ret = 0;
 192         /* Read a line, continue reading if line ends with \ */
 193         for (p = buf, n = sizeof(buf), i = 0, first = 1; n > 0; first = 0) {
 194             prompt = first ? "OpenSSL> " : "> ";
 195             p[0] = '\0';
 196 #ifndef READLINE
 197             fputs(prompt, stdout);
 198             fflush(stdout);
 199             if (!fgets(p, n, stdin))
 200                 goto end;
 201             if (p[0] == '\0')
 202                 goto end;
 203             i = strlen(p);
 204             if (i <= 1)
 205                 break;
 206             if (p[i - 2] != '\\')
 207                 break;
 208             i -= 2;
 209             p += i;
 210             n -= i;
 211 #else
 212             {
 213                 extern char *readline(const char *);
 214                 extern void add_history(const char *cp);
 215                 char *text;
 216
 217                 text = readline(prompt);
 218                 if (text == NULL)
 219                     goto end;
 220                 i = strlen(text);
 221                 if (i == 0 || i > n)
 222                     break;
 223                 if (text[i - 1] != '\\') {
 224                     p += strlen(strcpy(p, text));
 225                     free(text);
 226                     add_history(buf);
 227                     break;
 228                 }
 229
 230                 text[i - 1] = '\0';
 231                 p += strlen(strcpy(p, text));
 232                 free(text);
 233                 n -= i;
 234             }
 235 #endif
 236         }
 237
 238         if (!chopup_args(&arg, buf)) {
 239             BIO_printf(bio_err, "Can't parse (no memory?)\n");
 240             break;
 241         }
 242
 243         ret = do_cmd(prog, arg.argc, arg.argv);
 244         if (ret == EXIT_THE_PROGRAM) {
 245             ret = 0;
 246             goto end;
 247         }
 248         if (ret != 0)
 249             BIO_printf(bio_err, "error in %s\n", arg.argv[0]);
 250         (void)BIO_flush(bio_out);
 251         (void)BIO_flush(bio_err);
 252     }
 253     ret = 1;
 254  end:
 255     OPENSSL_free(copied_argv);
 256     OPENSSL_free(default_config_file);
 257     lh_FUNCTION_free(prog);
 258     OPENSSL_free(arg.argv);
 259     app_RAND_write();
 260
 261     BIO_free(bio_in);
 262     BIO_free_all(bio_out);
 263     apps_shutdown();
 264 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
 265     if (CRYPTO_mem_leaks(bio_err) <= 0)
 266         ret = 1;
 267 #endif
 268     BIO_free(bio_err);
 269     EXIT(ret);
 270 }
 271
 272 static void list_cipher_fn(const EVP_CIPHER *c,
 273                            const char *from, const char *to, void *arg)
 274 {
 275     if (c != NULL) {
 276         BIO_printf(arg, "%s\n", EVP_CIPHER_name(c));
 277     } else {
 278         if (from == NULL)
 279             from = "<undefined>";
 280         if (to == NULL)
 281             to = "<undefined>";
 282         BIO_printf(arg, "%s => %s\n", from, to);
 283     }
 284 }
 285
 286 static void list_md_fn(const EVP_MD *m,
 287                        const char *from, const char *to, void *arg)
 288 {
 289     if (m != NULL) {
 290         BIO_printf(arg, "%s\n", EVP_MD_name(m));
 291     } else {
 292         if (from == NULL)
 293             from = "<undefined>";
 294         if (to == NULL)
 295             to = "<undefined>";
 296         BIO_printf((BIO *)arg, "%s => %s\n", from, to);
 297     }
 298 }
 299
 300 static void list_missing_help(void)
 301 {
 302     const FUNCTION *fp;
 303     const OPTIONS *o;
 304
 305     for (fp = functions; fp->name != NULL; fp++) {
 306         if ((o = fp->help) != NULL) {
 307             /* If there is help, list what flags are not documented. */
 308             for ( ; o->name != NULL; o++) {
 309                 if (o->helpstr == NULL)
 310                     BIO_printf(bio_out, "%s %s\n", fp->name, o->name);
 311             }
 312         } else if (fp->func != dgst_main) {
 313             /* If not aliased to the dgst command, */
 314             BIO_printf(bio_out, "%s *\n", fp->name);
 315         }
 316     }
 317 }
 318
 319 static void list_options_for_command(const char *command)
 320 {
 321     const FUNCTION *fp;
 322     const OPTIONS *o;
 323
 324     for (fp = functions; fp->name != NULL; fp++)
 325         if (strcmp(fp->name, command) == 0)
 326             break;
 327     if (fp->name == NULL) {
 328         BIO_printf(bio_err, "Invalid command '%s'; type \"help\" for a list.\n",
 329                 command);
 330         return;
 331     }
 332
 333     if ((o = fp->help) == NULL)
 334         return;
 335
 336     for ( ; o->name != NULL; o++) {
 337         if (o->name == OPT_HELP_STR
 338                 || o->name == OPT_MORE_STR
 339                 || o->name[0] == '\0')
 340             continue;
 341         BIO_printf(bio_out, "%s %c\n", o->name, o->valtype);
 342     }
 343 }
 344
 345
 346 /* Unified enum for help and list commands. */
 347 typedef enum HELPLIST_CHOICE {
 348     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_ONE,
 349     OPT_COMMANDS, OPT_DIGEST_COMMANDS, OPT_OPTIONS,
 350     OPT_DIGEST_ALGORITHMS, OPT_CIPHER_COMMANDS, OPT_CIPHER_ALGORITHMS,
 351     OPT_PK_ALGORITHMS, OPT_PK_METHOD, OPT_DISABLED, OPT_MISSING_HELP
 352 } HELPLIST_CHOICE;
 353
 354 const OPTIONS list_options[] = {
 355     {"help", OPT_HELP, '-', "Display this summary"},
 356     {"1", OPT_ONE, '-', "List in one column"},
 357     {"commands", OPT_COMMANDS, '-', "List of standard commands"},
 358     {"digest-commands", OPT_DIGEST_COMMANDS, '-',
 359      "List of message digest commands"},
 360     {"digest-algorithms", OPT_DIGEST_ALGORITHMS, '-',
 361      "List of message digest algorithms"},
 362     {"cipher-commands", OPT_CIPHER_COMMANDS, '-', "List of cipher commands"},
 363     {"cipher-algorithms", OPT_CIPHER_ALGORITHMS, '-',
 364      "List of cipher algorithms"},
 365     {"public-key-algorithms", OPT_PK_ALGORITHMS, '-',
 366      "List of public key algorithms"},
 367     {"public-key-methods", OPT_PK_METHOD, '-',
 368      "List of public key methods"},
 369     {"disabled", OPT_DISABLED, '-',
 370      "List of disabled features"},
 371     {"missing-help", OPT_MISSING_HELP, '-',
 372      "List missing detailed help strings"},
 373     {"options", OPT_OPTIONS, 's',
 374      "List options for specified command"},
 375     {NULL}
 376 };
 377
 378 int list_main(int argc, char **argv)
 379 {
 380     char *prog;
 381     HELPLIST_CHOICE o;
 382     int one = 0, done = 0;
 383
 384     prog = opt_init(argc, argv, list_options);
 385     while ((o = opt_next()) != OPT_EOF) {
 386         switch (o) {
 387         case OPT_EOF:  /* Never hit, but suppresses warning */
 388         case OPT_ERR:
 389 opthelp:
 390             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 391             return 1;
 392         case OPT_HELP:
 393             opt_help(list_options);
 394             break;
 395         case OPT_ONE:
 396             one = 1;
 397             break;
 398         case OPT_COMMANDS:
 399             list_type(FT_general, one);
 400             break;
 401         case OPT_DIGEST_COMMANDS:
 402             list_type(FT_md, one);
 403             break;
 404         case OPT_DIGEST_ALGORITHMS:
 405             EVP_MD_do_all_sorted(list_md_fn, bio_out);
 406             break;
 407         case OPT_CIPHER_COMMANDS:
 408             list_type(FT_cipher, one);
 409             break;
 410         case OPT_CIPHER_ALGORITHMS:
 411             EVP_CIPHER_do_all_sorted(list_cipher_fn, bio_out);
 412             break;
 413         case OPT_PK_ALGORITHMS:
 414             list_pkey();
 415             break;
 416         case OPT_PK_METHOD:
 417             list_pkey_meth();
 418             break;
 419         case OPT_DISABLED:
 420             list_disabled();
 421             break;
 422         case OPT_MISSING_HELP:
 423             list_missing_help();
 424             break;
 425         case OPT_OPTIONS:
 426             list_options_for_command(opt_arg());
 427             break;
 428         }
 429         done = 1;
 430     }
 431     if (opt_num_rest() != 0) {
 432         BIO_printf(bio_err, "Extra arguments given.\n");
 433         goto opthelp;
 434     }
 435
 436     if (!done)
 437         goto opthelp;
 438
 439     return 0;
 440 }
 441
 442 typedef enum HELP_CHOICE {
 443     OPT_hERR = -1, OPT_hEOF = 0, OPT_hHELP
 444 } HELP_CHOICE;
 445
 446 const OPTIONS help_options[] = {
 447     {OPT_HELP_STR, 1, '-', "Usage: help [options]\n"},
 448     {OPT_HELP_STR, 1, '-', "       help [command]\n"},
 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() == 1) {
 477         char *new_argv[3];
 478
 479         new_argv[0] = opt_rest()[0];
 480         new_argv[1] = "--help";
 481         new_argv[2] = NULL;
 482         return do_cmd(prog_init(), 2, new_argv);
 483     }
 484     if (opt_num_rest() != 0) {
 485         BIO_printf(bio_err, "Usage: %s\n", prog);
 486         return 1;
 487     }
 488
 489     calculate_columns(&dc);
 490     BIO_printf(bio_err, "Standard commands");
 491     i = 0;
 492     tp = FT_none;
 493     for (fp = functions; fp->name != NULL; fp++) {
 494         nl = 0;
 495         if (i++ % dc.columns == 0) {
 496             BIO_printf(bio_err, "\n");
 497             nl = 1;
 498         }
 499         if (fp->type != tp) {
 500             tp = fp->type;
 501             if (!nl)
 502                 BIO_printf(bio_err, "\n");
 503             if (tp == FT_md) {
 504                 i = 1;
 505                 BIO_printf(bio_err,
 506                            "\nMessage Digest commands (see the `dgst' command for more details)\n");
 507             } else if (tp == FT_cipher) {
 508                 i = 1;
 509                 BIO_printf(bio_err,
 510                            "\nCipher commands (see the `enc' command for more details)\n");
 511             }
 512         }
 513         BIO_printf(bio_err, "%-*s", dc.width, fp->name);
 514     }
 515     BIO_printf(bio_err, "\n\n");
 516     return 0;
 517 }
 518
 519 static void list_type(FUNC_TYPE ft, int one)
 520 {
 521     FUNCTION *fp;
 522     int i = 0;
 523     DISPLAY_COLUMNS dc = {0};
 524
 525     if (!one)
 526         calculate_columns(&dc);
 527
 528     for (fp = functions; fp->name != NULL; fp++) {
 529         if (fp->type != ft)
 530             continue;
 531         if (one) {
 532             BIO_printf(bio_out, "%s\n", fp->name);
 533         } else {
 534             if (i % dc.columns == 0 && i > 0)
 535                 BIO_printf(bio_out, "\n");
 536             BIO_printf(bio_out, "%-*s", dc.width, fp->name);
 537             i++;
 538         }
 539     }
 540     if (!one)
 541         BIO_printf(bio_out, "\n\n");
 542 }
 543
 544 static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[])
 545 {
 546     FUNCTION f, *fp;
 547
 548     if (argc <= 0 || argv[0] == NULL)
 549         return 0;
 550     f.name = argv[0];
 551     fp = lh_FUNCTION_retrieve(prog, &f);
 552     if (fp == NULL) {
 553         if (EVP_get_digestbyname(argv[0])) {
 554             f.type = FT_md;
 555             f.func = dgst_main;
 556             fp = &f;
 557         } else if (EVP_get_cipherbyname(argv[0])) {
 558             f.type = FT_cipher;
 559             f.func = enc_main;
 560             fp = &f;
 561         }
 562     }
 563     if (fp != NULL) {
 564         return fp->func(argc, argv);
 565     }
 566     if ((strncmp(argv[0], "no-", 3)) == 0) {
 567         /*
 568          * User is asking if foo is unsupported, by trying to "run" the
 569          * no-foo command.  Strange.
 570          */
 571         f.name = argv[0] + 3;
 572         if (lh_FUNCTION_retrieve(prog, &f) == NULL) {
 573             BIO_printf(bio_out, "%s\n", argv[0]);
 574             return 0;
 575         }
 576         BIO_printf(bio_out, "%s\n", argv[0] + 3);
 577         return 1;
 578     }
 579     if (strcmp(argv[0], "quit") == 0 || strcmp(argv[0], "q") == 0 ||
 580         strcmp(argv[0], "exit") == 0 || strcmp(argv[0], "bye") == 0)
 581         /* Special value to mean "exit the program. */
 582         return EXIT_THE_PROGRAM;
 583
 584     BIO_printf(bio_err, "Invalid command '%s'; type \"help\" for a list.\n",
 585                argv[0]);
 586     return 1;
 587 }
 588
 589 static void list_pkey(void)
 590 {
 591     int i;
 592
 593     for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
 594         const EVP_PKEY_ASN1_METHOD *ameth;
 595         int pkey_id, pkey_base_id, pkey_flags;
 596         const char *pinfo, *pem_str;
 597         ameth = EVP_PKEY_asn1_get0(i);
 598         EVP_PKEY_asn1_get0_info(&pkey_id, &pkey_base_id, &pkey_flags,
 599                                 &pinfo, &pem_str, ameth);
 600         if (pkey_flags & ASN1_PKEY_ALIAS) {
 601             BIO_printf(bio_out, "Name: %s\n", OBJ_nid2ln(pkey_id));
 602             BIO_printf(bio_out, "\tAlias for: %s\n",
 603                        OBJ_nid2ln(pkey_base_id));
 604         } else {
 605             BIO_printf(bio_out, "Name: %s\n", pinfo);
 606             BIO_printf(bio_out, "\tType: %s Algorithm\n",
 607                        pkey_flags & ASN1_PKEY_DYNAMIC ?
 608                        "External" : "Builtin");
 609             BIO_printf(bio_out, "\tOID: %s\n", OBJ_nid2ln(pkey_id));
 610             if (pem_str == NULL)
 611                 pem_str = "(none)";
 612             BIO_printf(bio_out, "\tPEM string: %s\n", pem_str);
 613         }
 614
 615     }
 616 }
 617
 618 static void list_pkey_meth(void)
 619 {
 620     size_t i;
 621     size_t meth_count = EVP_PKEY_meth_get_count();
 622
 623     for (i = 0; i < meth_count; i++) {
 624         const EVP_PKEY_METHOD *pmeth = EVP_PKEY_meth_get0(i);
 625         int pkey_id, pkey_flags;
 626
 627         EVP_PKEY_meth_get0_info(&pkey_id, &pkey_flags, pmeth);
 628         BIO_printf(bio_out, "%s\n", OBJ_nid2ln(pkey_id));
 629         BIO_printf(bio_out, "\tType: %s Algorithm\n",
 630                    pkey_flags & ASN1_PKEY_DYNAMIC ?  "External" : "Builtin");
 631     }
 632 }
 633
 634 static int function_cmp(const FUNCTION * a, const FUNCTION * b)
 635 {
 636     return strncmp(a->name, b->name, 8);
 637 }
 638
 639 static unsigned long function_hash(const FUNCTION * a)
 640 {
 641     return OPENSSL_LH_strhash(a->name);
 642 }
 643
 644 static int SortFnByName(const void *_f1, const void *_f2)
 645 {
 646     const FUNCTION *f1 = _f1;
 647     const FUNCTION *f2 = _f2;
 648
 649     if (f1->type != f2->type)
 650         return f1->type - f2->type;
 651     return strcmp(f1->name, f2->name);
 652 }
 653
 654 static void list_disabled(void)
 655 {
 656     BIO_puts(bio_out, "Disabled algorithms:\n");
 657 #ifdef OPENSSL_NO_ARIA
 658     BIO_puts(bio_out, "ARIA\n");
 659 #endif
 660 #ifdef OPENSSL_NO_BF
 661     BIO_puts(bio_out, "BF\n");
 662 #endif
 663 #ifdef OPENSSL_NO_BLAKE2
 664     BIO_puts(bio_out, "BLAKE2\n");
 665 #endif
 666 #ifdef OPENSSL_NO_CAMELLIA
 667     BIO_puts(bio_out, "CAMELLIA\n");
 668 #endif
 669 #ifdef OPENSSL_NO_CAST
 670     BIO_puts(bio_out, "CAST\n");
 671 #endif
 672 #ifdef OPENSSL_NO_CMAC
 673     BIO_puts(bio_out, "CMAC\n");
 674 #endif
 675 #ifdef OPENSSL_NO_CMS
 676     BIO_puts(bio_out, "CMS\n");
 677 #endif
 678 #ifdef OPENSSL_NO_COMP
 679     BIO_puts(bio_out, "COMP\n");
 680 #endif
 681 #ifdef OPENSSL_NO_DES
 682     BIO_puts(bio_out, "DES\n");
 683 #endif
 684 #ifdef OPENSSL_NO_DGRAM
 685     BIO_puts(bio_out, "DGRAM\n");
 686 #endif
 687 #ifdef OPENSSL_NO_DH
 688     BIO_puts(bio_out, "DH\n");
 689 #endif
 690 #ifdef OPENSSL_NO_DSA
 691     BIO_puts(bio_out, "DSA\n");
 692 #endif
 693 #if defined(OPENSSL_NO_DTLS)
 694     BIO_puts(bio_out, "DTLS\n");
 695 #endif
 696 #if defined(OPENSSL_NO_DTLS1)
 697     BIO_puts(bio_out, "DTLS1\n");
 698 #endif
 699 #if defined(OPENSSL_NO_DTLS1_2)
 700     BIO_puts(bio_out, "DTLS1_2\n");
 701 #endif
 702 #ifdef OPENSSL_NO_EC
 703     BIO_puts(bio_out, "EC\n");
 704 #endif
 705 #ifdef OPENSSL_NO_EC2M
 706     BIO_puts(bio_out, "EC2M\n");
 707 #endif
 708 #ifdef OPENSSL_NO_ENGINE
 709     BIO_puts(bio_out, "ENGINE\n");
 710 #endif
 711 #ifdef OPENSSL_NO_GOST
 712     BIO_puts(bio_out, "GOST\n");
 713 #endif
 714 #ifdef OPENSSL_NO_HEARTBEATS
 715     BIO_puts(bio_out, "HEARTBEATS\n");
 716 #endif
 717 #ifdef OPENSSL_NO_IDEA
 718     BIO_puts(bio_out, "IDEA\n");
 719 #endif
 720 #ifdef OPENSSL_NO_MD2
 721     BIO_puts(bio_out, "MD2\n");
 722 #endif
 723 #ifdef OPENSSL_NO_MD4
 724     BIO_puts(bio_out, "MD4\n");
 725 #endif
 726 #ifdef OPENSSL_NO_MD5
 727     BIO_puts(bio_out, "MD5\n");
 728 #endif
 729 #ifdef OPENSSL_NO_MDC2
 730     BIO_puts(bio_out, "MDC2\n");
 731 #endif
 732 #ifdef OPENSSL_NO_OCB
 733     BIO_puts(bio_out, "OCB\n");
 734 #endif
 735 #ifdef OPENSSL_NO_OCSP
 736     BIO_puts(bio_out, "OCSP\n");
 737 #endif
 738 #ifdef OPENSSL_NO_PSK
 739     BIO_puts(bio_out, "PSK\n");
 740 #endif
 741 #ifdef OPENSSL_NO_RC2
 742     BIO_puts(bio_out, "RC2\n");
 743 #endif
 744 #ifdef OPENSSL_NO_RC4
 745     BIO_puts(bio_out, "RC4\n");
 746 #endif
 747 #ifdef OPENSSL_NO_RC5
 748     BIO_puts(bio_out, "RC5\n");
 749 #endif
 750 #ifdef OPENSSL_NO_RMD160
 751     BIO_puts(bio_out, "RMD160\n");
 752 #endif
 753 #ifdef OPENSSL_NO_RSA
 754     BIO_puts(bio_out, "RSA\n");
 755 #endif
 756 #ifdef OPENSSL_NO_SCRYPT
 757     BIO_puts(bio_out, "SCRYPT\n");
 758 #endif
 759 #ifdef OPENSSL_NO_SCTP
 760     BIO_puts(bio_out, "SCTP\n");
 761 #endif
 762 #ifdef OPENSSL_NO_SEED
 763     BIO_puts(bio_out, "SEED\n");
 764 #endif
 765 #ifdef OPENSSL_NO_SM2
 766     BIO_puts(bio_out, "SM2\n");
 767 #endif
 768 #ifdef OPENSSL_NO_SM3
 769     BIO_puts(bio_out, "SM3\n");
 770 #endif
 771 #ifdef OPENSSL_NO_SM4
 772     BIO_puts(bio_out, "SM4\n");
 773 #endif
 774 #ifdef OPENSSL_NO_SOCK
 775     BIO_puts(bio_out, "SOCK\n");
 776 #endif
 777 #ifdef OPENSSL_NO_SRP
 778     BIO_puts(bio_out, "SRP\n");
 779 #endif
 780 #ifdef OPENSSL_NO_SRTP
 781     BIO_puts(bio_out, "SRTP\n");
 782 #endif
 783 #ifdef OPENSSL_NO_SSL3
 784     BIO_puts(bio_out, "SSL3\n");
 785 #endif
 786 #ifdef OPENSSL_NO_TLS1
 787     BIO_puts(bio_out, "TLS1\n");
 788 #endif
 789 #ifdef OPENSSL_NO_TLS1_1
 790     BIO_puts(bio_out, "TLS1_1\n");
 791 #endif
 792 #ifdef OPENSSL_NO_TLS1_2
 793     BIO_puts(bio_out, "TLS1_2\n");
 794 #endif
 795 #ifdef OPENSSL_NO_WHIRLPOOL
 796     BIO_puts(bio_out, "WHIRLPOOL\n");
 797 #endif
 798 #ifndef ZLIB
 799     BIO_puts(bio_out, "ZLIB\n");
 800 #endif
 801 }
 802
 803 static LHASH_OF(FUNCTION) *prog_init(void)
 804 {
 805     static LHASH_OF(FUNCTION) *ret = NULL;
 806     static int prog_inited = 0;
 807     FUNCTION *f;
 808     size_t i;
 809
 810     if (prog_inited)
 811         return ret;
 812
 813     prog_inited = 1;
 814
 815     /* Sort alphabetically within category. For nicer help displays. */
 816     for (i = 0, f = functions; f->name != NULL; ++f, ++i)
 817         ;
 818     qsort(functions, i, sizeof(*functions), SortFnByName);
 819
 820     if ((ret = lh_FUNCTION_new(function_hash, function_cmp)) == NULL)
 821         return NULL;
 822
 823     for (f = functions; f->name != NULL; f++)
 824         (void)lh_FUNCTION_insert(ret, f);
 825     return ret;
 826 }