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 */
36typedef 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45 * The LHASH callbacks ("hash" & "cmp") have been replaced by functions with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 */
50static LHASH_OF(FUNCTION) *prog_init(void);
51static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[]);
52static void list_pkey(void);
53static void list_pkey_meth(void);
54static void list_type(FUNC_TYPE ft, int one);
55static void list_disabled(void);
56char *default_config_file = NULL;
57
58BIO *bio_in = NULL;
59BIO *bio_out = NULL;
60BIO *bio_err = NULL;
61
62static 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
76static 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
92static void apps_shutdown(void)
93{
94    destroy_ui_method();
95    destroy_prefix_method();
96}
97
98static 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
119int 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
278static 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
292static 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
306static 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
325static 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. */
353typedef 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
360const 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
384int 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:
395opthelp:
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
448typedef enum HELP_CHOICE {
449    OPT_hERR = -1, OPT_hEOF = 0, OPT_hHELP
450} HELP_CHOICE;
451
452const 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
460int 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
525static 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
550static 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
595static 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
624static 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
640static int function_cmp(const FUNCTION * a, const FUNCTION * b)
641{
642    return strncmp(a->name, b->name, 8);
643}
644
645static unsigned long function_hash(const FUNCTION * a)
646{
647    return OPENSSL_LH_strhash(a->name);
648}
649
650static 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
660static 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
809static 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