xref: /freebsd/crypto/openssl/apps/openssl.c (revision d9a42747950146bf03cda7f6e25d219253f8a57a)
1 /*
2  * Copyright 1995-2022 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45  * The LHASH callbacks ("hash" & "cmp") have been replaced by functions with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 *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     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     if (prog == NULL) {
167         BIO_printf(bio_err,
168                    "FATAL: Startup failure (dev note: prog_init() failed)\n");
169         ERR_print_errors(bio_err);
170         ret = 1;
171         goto end;
172     }
173     pname = opt_progname(argv[0]);
174 
175     /* first check the program name */
176     f.name = pname;
177     fp = lh_FUNCTION_retrieve(prog, &f);
178     if (fp != NULL) {
179         argv[0] = pname;
180         ret = fp->func(argc, argv);
181         goto end;
182     }
183 
184     /* If there is stuff on the command line, run with that. */
185     if (argc != 1) {
186         argc--;
187         argv++;
188         ret = do_cmd(prog, argc, argv);
189         if (ret < 0)
190             ret = 0;
191         goto end;
192     }
193 
194     /* ok, lets enter interactive mode */
195     for (;;) {
196         ret = 0;
197         /* Read a line, continue reading if line ends with \ */
198         for (p = buf, n = sizeof(buf), i = 0, first = 1; n > 0; first = 0) {
199             prompt = first ? "OpenSSL> " : "> ";
200             p[0] = '\0';
201 #ifndef READLINE
202             fputs(prompt, stdout);
203             fflush(stdout);
204             if (!fgets(p, n, stdin))
205                 goto end;
206             if (p[0] == '\0')
207                 goto end;
208             i = strlen(p);
209             if (i <= 1)
210                 break;
211             if (p[i - 2] != '\\')
212                 break;
213             i -= 2;
214             p += i;
215             n -= i;
216 #else
217             {
218                 extern char *readline(const char *);
219                 extern void add_history(const char *cp);
220                 char *text;
221 
222                 text = readline(prompt);
223                 if (text == NULL)
224                     goto end;
225                 i = strlen(text);
226                 if (i == 0 || i > n)
227                     break;
228                 if (text[i - 1] != '\\') {
229                     p += strlen(strcpy(p, text));
230                     free(text);
231                     add_history(buf);
232                     break;
233                 }
234 
235                 text[i - 1] = '\0';
236                 p += strlen(strcpy(p, text));
237                 free(text);
238                 n -= i;
239             }
240 #endif
241         }
242 
243         if (!chopup_args(&arg, buf)) {
244             BIO_printf(bio_err, "Can't parse (no memory?)\n");
245             break;
246         }
247 
248         ret = do_cmd(prog, arg.argc, arg.argv);
249         if (ret == EXIT_THE_PROGRAM) {
250             ret = 0;
251             goto end;
252         }
253         if (ret != 0)
254             BIO_printf(bio_err, "error in %s\n", arg.argv[0]);
255         (void)BIO_flush(bio_out);
256         (void)BIO_flush(bio_err);
257     }
258     ret = 1;
259  end:
260     OPENSSL_free(default_config_file);
261     lh_FUNCTION_free(prog);
262     OPENSSL_free(arg.argv);
263     app_RAND_write();
264 
265     BIO_free(bio_in);
266     BIO_free_all(bio_out);
267     apps_shutdown();
268 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
269     if (CRYPTO_mem_leaks(bio_err) <= 0)
270         ret = 1;
271 #endif
272     BIO_free(bio_err);
273     EXIT(ret);
274 }
275 
276 static void list_cipher_fn(const EVP_CIPHER *c,
277                            const char *from, const char *to, void *arg)
278 {
279     if (c != NULL) {
280         BIO_printf(arg, "%s\n", EVP_CIPHER_name(c));
281     } else {
282         if (from == NULL)
283             from = "<undefined>";
284         if (to == NULL)
285             to = "<undefined>";
286         BIO_printf(arg, "%s => %s\n", from, to);
287     }
288 }
289 
290 static void list_md_fn(const EVP_MD *m,
291                        const char *from, const char *to, void *arg)
292 {
293     if (m != NULL) {
294         BIO_printf(arg, "%s\n", EVP_MD_name(m));
295     } else {
296         if (from == NULL)
297             from = "<undefined>";
298         if (to == NULL)
299             to = "<undefined>";
300         BIO_printf((BIO *)arg, "%s => %s\n", from, to);
301     }
302 }
303 
304 static void list_missing_help(void)
305 {
306     const FUNCTION *fp;
307     const OPTIONS *o;
308 
309     for (fp = functions; fp->name != NULL; fp++) {
310         if ((o = fp->help) != NULL) {
311             /* If there is help, list what flags are not documented. */
312             for ( ; o->name != NULL; o++) {
313                 if (o->helpstr == NULL)
314                     BIO_printf(bio_out, "%s %s\n", fp->name, o->name);
315             }
316         } else if (fp->func != dgst_main) {
317             /* If not aliased to the dgst command, */
318             BIO_printf(bio_out, "%s *\n", fp->name);
319         }
320     }
321 }
322 
323 static void list_options_for_command(const char *command)
324 {
325     const FUNCTION *fp;
326     const OPTIONS *o;
327 
328     for (fp = functions; fp->name != NULL; fp++)
329         if (strcmp(fp->name, command) == 0)
330             break;
331     if (fp->name == NULL) {
332         BIO_printf(bio_err, "Invalid command '%s'; type \"help\" for a list.\n",
333                 command);
334         return;
335     }
336 
337     if ((o = fp->help) == NULL)
338         return;
339 
340     for ( ; o->name != NULL; o++) {
341         if (o->name == OPT_HELP_STR
342                 || o->name == OPT_MORE_STR
343                 || o->name[0] == '\0')
344             continue;
345         BIO_printf(bio_out, "%s %c\n", o->name, o->valtype);
346     }
347 }
348 
349 
350 /* Unified enum for help and list commands. */
351 typedef enum HELPLIST_CHOICE {
352     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_ONE,
353     OPT_COMMANDS, OPT_DIGEST_COMMANDS, OPT_OPTIONS,
354     OPT_DIGEST_ALGORITHMS, OPT_CIPHER_COMMANDS, OPT_CIPHER_ALGORITHMS,
355     OPT_PK_ALGORITHMS, OPT_PK_METHOD, OPT_DISABLED, OPT_MISSING_HELP
356 } HELPLIST_CHOICE;
357 
358 const OPTIONS list_options[] = {
359     {"help", OPT_HELP, '-', "Display this summary"},
360     {"1", OPT_ONE, '-', "List in one column"},
361     {"commands", OPT_COMMANDS, '-', "List of standard commands"},
362     {"digest-commands", OPT_DIGEST_COMMANDS, '-',
363      "List of message digest commands"},
364     {"digest-algorithms", OPT_DIGEST_ALGORITHMS, '-',
365      "List of message digest algorithms"},
366     {"cipher-commands", OPT_CIPHER_COMMANDS, '-', "List of cipher commands"},
367     {"cipher-algorithms", OPT_CIPHER_ALGORITHMS, '-',
368      "List of cipher algorithms"},
369     {"public-key-algorithms", OPT_PK_ALGORITHMS, '-',
370      "List of public key algorithms"},
371     {"public-key-methods", OPT_PK_METHOD, '-',
372      "List of public key methods"},
373     {"disabled", OPT_DISABLED, '-',
374      "List of disabled features"},
375     {"missing-help", OPT_MISSING_HELP, '-',
376      "List missing detailed help strings"},
377     {"options", OPT_OPTIONS, 's',
378      "List options for specified command"},
379     {NULL}
380 };
381 
382 int list_main(int argc, char **argv)
383 {
384     char *prog;
385     HELPLIST_CHOICE o;
386     int one = 0, done = 0;
387 
388     prog = opt_init(argc, argv, list_options);
389     while ((o = opt_next()) != OPT_EOF) {
390         switch (o) {
391         case OPT_EOF:  /* Never hit, but suppresses warning */
392         case OPT_ERR:
393 opthelp:
394             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
395             return 1;
396         case OPT_HELP:
397             opt_help(list_options);
398             break;
399         case OPT_ONE:
400             one = 1;
401             break;
402         case OPT_COMMANDS:
403             list_type(FT_general, one);
404             break;
405         case OPT_DIGEST_COMMANDS:
406             list_type(FT_md, one);
407             break;
408         case OPT_DIGEST_ALGORITHMS:
409             EVP_MD_do_all_sorted(list_md_fn, bio_out);
410             break;
411         case OPT_CIPHER_COMMANDS:
412             list_type(FT_cipher, one);
413             break;
414         case OPT_CIPHER_ALGORITHMS:
415             EVP_CIPHER_do_all_sorted(list_cipher_fn, bio_out);
416             break;
417         case OPT_PK_ALGORITHMS:
418             list_pkey();
419             break;
420         case OPT_PK_METHOD:
421             list_pkey_meth();
422             break;
423         case OPT_DISABLED:
424             list_disabled();
425             break;
426         case OPT_MISSING_HELP:
427             list_missing_help();
428             break;
429         case OPT_OPTIONS:
430             list_options_for_command(opt_arg());
431             break;
432         }
433         done = 1;
434     }
435     if (opt_num_rest() != 0) {
436         BIO_printf(bio_err, "Extra arguments given.\n");
437         goto opthelp;
438     }
439 
440     if (!done)
441         goto opthelp;
442 
443     return 0;
444 }
445 
446 typedef enum HELP_CHOICE {
447     OPT_hERR = -1, OPT_hEOF = 0, OPT_hHELP
448 } HELP_CHOICE;
449 
450 const OPTIONS help_options[] = {
451     {OPT_HELP_STR, 1, '-', "Usage: help [options]\n"},
452     {OPT_HELP_STR, 1, '-', "       help [command]\n"},
453     {"help", OPT_hHELP, '-', "Display this summary"},
454     {NULL}
455 };
456 
457 
458 int help_main(int argc, char **argv)
459 {
460     FUNCTION *fp;
461     int i, nl;
462     FUNC_TYPE tp;
463     char *prog;
464     HELP_CHOICE o;
465     DISPLAY_COLUMNS dc;
466 
467     prog = opt_init(argc, argv, help_options);
468     while ((o = opt_next()) != OPT_hEOF) {
469         switch (o) {
470         case OPT_hERR:
471         case OPT_hEOF:
472             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
473             return 1;
474         case OPT_hHELP:
475             opt_help(help_options);
476             return 0;
477         }
478     }
479 
480     if (opt_num_rest() == 1) {
481         char *new_argv[3];
482 
483         new_argv[0] = opt_rest()[0];
484         new_argv[1] = "--help";
485         new_argv[2] = NULL;
486         return do_cmd(prog_init(), 2, new_argv);
487     }
488     if (opt_num_rest() != 0) {
489         BIO_printf(bio_err, "Usage: %s\n", prog);
490         return 1;
491     }
492 
493     calculate_columns(&dc);
494     BIO_printf(bio_err, "Standard commands");
495     i = 0;
496     tp = FT_none;
497     for (fp = functions; fp->name != NULL; fp++) {
498         nl = 0;
499         if (i++ % dc.columns == 0) {
500             BIO_printf(bio_err, "\n");
501             nl = 1;
502         }
503         if (fp->type != tp) {
504             tp = fp->type;
505             if (!nl)
506                 BIO_printf(bio_err, "\n");
507             if (tp == FT_md) {
508                 i = 1;
509                 BIO_printf(bio_err,
510                            "\nMessage Digest commands (see the `dgst' command for more details)\n");
511             } else if (tp == FT_cipher) {
512                 i = 1;
513                 BIO_printf(bio_err,
514                            "\nCipher commands (see the `enc' command for more details)\n");
515             }
516         }
517         BIO_printf(bio_err, "%-*s", dc.width, fp->name);
518     }
519     BIO_printf(bio_err, "\n\n");
520     return 0;
521 }
522 
523 static void list_type(FUNC_TYPE ft, int one)
524 {
525     FUNCTION *fp;
526     int i = 0;
527     DISPLAY_COLUMNS dc = {0};
528 
529     if (!one)
530         calculate_columns(&dc);
531 
532     for (fp = functions; fp->name != NULL; fp++) {
533         if (fp->type != ft)
534             continue;
535         if (one) {
536             BIO_printf(bio_out, "%s\n", fp->name);
537         } else {
538             if (i % dc.columns == 0 && i > 0)
539                 BIO_printf(bio_out, "\n");
540             BIO_printf(bio_out, "%-*s", dc.width, fp->name);
541             i++;
542         }
543     }
544     if (!one)
545         BIO_printf(bio_out, "\n\n");
546 }
547 
548 static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[])
549 {
550     FUNCTION f, *fp;
551 
552     if (argc <= 0 || argv[0] == NULL)
553         return 0;
554     f.name = argv[0];
555     fp = lh_FUNCTION_retrieve(prog, &f);
556     if (fp == NULL) {
557         if (EVP_get_digestbyname(argv[0])) {
558             f.type = FT_md;
559             f.func = dgst_main;
560             fp = &f;
561         } else if (EVP_get_cipherbyname(argv[0])) {
562             f.type = FT_cipher;
563             f.func = enc_main;
564             fp = &f;
565         }
566     }
567     if (fp != NULL) {
568         return fp->func(argc, argv);
569     }
570     if ((strncmp(argv[0], "no-", 3)) == 0) {
571         /*
572          * User is asking if foo is unsupported, by trying to "run" the
573          * no-foo command.  Strange.
574          */
575         f.name = argv[0] + 3;
576         if (lh_FUNCTION_retrieve(prog, &f) == NULL) {
577             BIO_printf(bio_out, "%s\n", argv[0]);
578             return 0;
579         }
580         BIO_printf(bio_out, "%s\n", argv[0] + 3);
581         return 1;
582     }
583     if (strcmp(argv[0], "quit") == 0 || strcmp(argv[0], "q") == 0 ||
584         strcmp(argv[0], "exit") == 0 || strcmp(argv[0], "bye") == 0)
585         /* Special value to mean "exit the program. */
586         return EXIT_THE_PROGRAM;
587 
588     BIO_printf(bio_err, "Invalid command '%s'; type \"help\" for a list.\n",
589                argv[0]);
590     return 1;
591 }
592 
593 static void list_pkey(void)
594 {
595     int i;
596 
597     for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
598         const EVP_PKEY_ASN1_METHOD *ameth;
599         int pkey_id, pkey_base_id, pkey_flags;
600         const char *pinfo, *pem_str;
601         ameth = EVP_PKEY_asn1_get0(i);
602         EVP_PKEY_asn1_get0_info(&pkey_id, &pkey_base_id, &pkey_flags,
603                                 &pinfo, &pem_str, ameth);
604         if (pkey_flags & ASN1_PKEY_ALIAS) {
605             BIO_printf(bio_out, "Name: %s\n", OBJ_nid2ln(pkey_id));
606             BIO_printf(bio_out, "\tAlias for: %s\n",
607                        OBJ_nid2ln(pkey_base_id));
608         } else {
609             BIO_printf(bio_out, "Name: %s\n", pinfo);
610             BIO_printf(bio_out, "\tType: %s Algorithm\n",
611                        pkey_flags & ASN1_PKEY_DYNAMIC ?
612                        "External" : "Builtin");
613             BIO_printf(bio_out, "\tOID: %s\n", OBJ_nid2ln(pkey_id));
614             if (pem_str == NULL)
615                 pem_str = "(none)";
616             BIO_printf(bio_out, "\tPEM string: %s\n", pem_str);
617         }
618 
619     }
620 }
621 
622 static void list_pkey_meth(void)
623 {
624     size_t i;
625     size_t meth_count = EVP_PKEY_meth_get_count();
626 
627     for (i = 0; i < meth_count; i++) {
628         const EVP_PKEY_METHOD *pmeth = EVP_PKEY_meth_get0(i);
629         int pkey_id, pkey_flags;
630 
631         EVP_PKEY_meth_get0_info(&pkey_id, &pkey_flags, pmeth);
632         BIO_printf(bio_out, "%s\n", OBJ_nid2ln(pkey_id));
633         BIO_printf(bio_out, "\tType: %s Algorithm\n",
634                    pkey_flags & ASN1_PKEY_DYNAMIC ?  "External" : "Builtin");
635     }
636 }
637 
638 static int function_cmp(const FUNCTION * a, const FUNCTION * b)
639 {
640     return strncmp(a->name, b->name, 8);
641 }
642 
643 static unsigned long function_hash(const FUNCTION * a)
644 {
645     return OPENSSL_LH_strhash(a->name);
646 }
647 
648 static int SortFnByName(const void *_f1, const void *_f2)
649 {
650     const FUNCTION *f1 = _f1;
651     const FUNCTION *f2 = _f2;
652 
653     if (f1->type != f2->type)
654         return f1->type - f2->type;
655     return strcmp(f1->name, f2->name);
656 }
657 
658 static void list_disabled(void)
659 {
660     BIO_puts(bio_out, "Disabled algorithms:\n");
661 #ifdef OPENSSL_NO_ARIA
662     BIO_puts(bio_out, "ARIA\n");
663 #endif
664 #ifdef OPENSSL_NO_BF
665     BIO_puts(bio_out, "BF\n");
666 #endif
667 #ifdef OPENSSL_NO_BLAKE2
668     BIO_puts(bio_out, "BLAKE2\n");
669 #endif
670 #ifdef OPENSSL_NO_CAMELLIA
671     BIO_puts(bio_out, "CAMELLIA\n");
672 #endif
673 #ifdef OPENSSL_NO_CAST
674     BIO_puts(bio_out, "CAST\n");
675 #endif
676 #ifdef OPENSSL_NO_CMAC
677     BIO_puts(bio_out, "CMAC\n");
678 #endif
679 #ifdef OPENSSL_NO_CMS
680     BIO_puts(bio_out, "CMS\n");
681 #endif
682 #ifdef OPENSSL_NO_COMP
683     BIO_puts(bio_out, "COMP\n");
684 #endif
685 #ifdef OPENSSL_NO_DES
686     BIO_puts(bio_out, "DES\n");
687 #endif
688 #ifdef OPENSSL_NO_DGRAM
689     BIO_puts(bio_out, "DGRAM\n");
690 #endif
691 #ifdef OPENSSL_NO_DH
692     BIO_puts(bio_out, "DH\n");
693 #endif
694 #ifdef OPENSSL_NO_DSA
695     BIO_puts(bio_out, "DSA\n");
696 #endif
697 #if defined(OPENSSL_NO_DTLS)
698     BIO_puts(bio_out, "DTLS\n");
699 #endif
700 #if defined(OPENSSL_NO_DTLS1)
701     BIO_puts(bio_out, "DTLS1\n");
702 #endif
703 #if defined(OPENSSL_NO_DTLS1_2)
704     BIO_puts(bio_out, "DTLS1_2\n");
705 #endif
706 #ifdef OPENSSL_NO_EC
707     BIO_puts(bio_out, "EC\n");
708 #endif
709 #ifdef OPENSSL_NO_EC2M
710     BIO_puts(bio_out, "EC2M\n");
711 #endif
712 #ifdef OPENSSL_NO_ENGINE
713     BIO_puts(bio_out, "ENGINE\n");
714 #endif
715 #ifdef OPENSSL_NO_GOST
716     BIO_puts(bio_out, "GOST\n");
717 #endif
718 #ifdef OPENSSL_NO_HEARTBEATS
719     BIO_puts(bio_out, "HEARTBEATS\n");
720 #endif
721 #ifdef OPENSSL_NO_IDEA
722     BIO_puts(bio_out, "IDEA\n");
723 #endif
724 #ifdef OPENSSL_NO_MD2
725     BIO_puts(bio_out, "MD2\n");
726 #endif
727 #ifdef OPENSSL_NO_MD4
728     BIO_puts(bio_out, "MD4\n");
729 #endif
730 #ifdef OPENSSL_NO_MD5
731     BIO_puts(bio_out, "MD5\n");
732 #endif
733 #ifdef OPENSSL_NO_MDC2
734     BIO_puts(bio_out, "MDC2\n");
735 #endif
736 #ifdef OPENSSL_NO_OCB
737     BIO_puts(bio_out, "OCB\n");
738 #endif
739 #ifdef OPENSSL_NO_OCSP
740     BIO_puts(bio_out, "OCSP\n");
741 #endif
742 #ifdef OPENSSL_NO_PSK
743     BIO_puts(bio_out, "PSK\n");
744 #endif
745 #ifdef OPENSSL_NO_RC2
746     BIO_puts(bio_out, "RC2\n");
747 #endif
748 #ifdef OPENSSL_NO_RC4
749     BIO_puts(bio_out, "RC4\n");
750 #endif
751 #ifdef OPENSSL_NO_RC5
752     BIO_puts(bio_out, "RC5\n");
753 #endif
754 #ifdef OPENSSL_NO_RMD160
755     BIO_puts(bio_out, "RMD160\n");
756 #endif
757 #ifdef OPENSSL_NO_RSA
758     BIO_puts(bio_out, "RSA\n");
759 #endif
760 #ifdef OPENSSL_NO_SCRYPT
761     BIO_puts(bio_out, "SCRYPT\n");
762 #endif
763 #ifdef OPENSSL_NO_SCTP
764     BIO_puts(bio_out, "SCTP\n");
765 #endif
766 #ifdef OPENSSL_NO_SEED
767     BIO_puts(bio_out, "SEED\n");
768 #endif
769 #ifdef OPENSSL_NO_SM2
770     BIO_puts(bio_out, "SM2\n");
771 #endif
772 #ifdef OPENSSL_NO_SM3
773     BIO_puts(bio_out, "SM3\n");
774 #endif
775 #ifdef OPENSSL_NO_SM4
776     BIO_puts(bio_out, "SM4\n");
777 #endif
778 #ifdef OPENSSL_NO_SOCK
779     BIO_puts(bio_out, "SOCK\n");
780 #endif
781 #ifdef OPENSSL_NO_SRP
782     BIO_puts(bio_out, "SRP\n");
783 #endif
784 #ifdef OPENSSL_NO_SRTP
785     BIO_puts(bio_out, "SRTP\n");
786 #endif
787 #ifdef OPENSSL_NO_SSL3
788     BIO_puts(bio_out, "SSL3\n");
789 #endif
790 #ifdef OPENSSL_NO_TLS1
791     BIO_puts(bio_out, "TLS1\n");
792 #endif
793 #ifdef OPENSSL_NO_TLS1_1
794     BIO_puts(bio_out, "TLS1_1\n");
795 #endif
796 #ifdef OPENSSL_NO_TLS1_2
797     BIO_puts(bio_out, "TLS1_2\n");
798 #endif
799 #ifdef OPENSSL_NO_WHIRLPOOL
800     BIO_puts(bio_out, "WHIRLPOOL\n");
801 #endif
802 #ifndef ZLIB
803     BIO_puts(bio_out, "ZLIB\n");
804 #endif
805 }
806 
807 static LHASH_OF(FUNCTION) *prog_init(void)
808 {
809     static LHASH_OF(FUNCTION) *ret = NULL;
810     static int prog_inited = 0;
811     FUNCTION *f;
812     size_t i;
813 
814     if (prog_inited)
815         return ret;
816 
817     prog_inited = 1;
818 
819     /* Sort alphabetically within category. For nicer help displays. */
820     for (i = 0, f = functions; f->name != NULL; ++f, ++i)
821         ;
822     qsort(functions, i, sizeof(*functions), SortFnByName);
823 
824     if ((ret = lh_FUNCTION_new(function_hash, function_cmp)) == NULL)
825         return NULL;
826 
827     for (f = functions; f->name != NULL; f++)
828         (void)lh_FUNCTION_insert(ret, f);
829     return ret;
830 }
831