xref: /freebsd/crypto/openssl/apps/openssl.c (revision d65cd7a57bf0600b722afc770838a5d0c1c3a8e1)
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45  * The LHASH callbacks ("hash" & "cmp") have been replaced by functions with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 }
833