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 <stdio.h>
11#include <stdlib.h>
12#include <string.h>
13#include "apps.h"
14#include "progs.h"
15#include <openssl/evp.h>
16#include <openssl/crypto.h>
17#include <openssl/bn.h>
18#ifndef OPENSSL_NO_MD2
19# include <openssl/md2.h>
20#endif
21#ifndef OPENSSL_NO_RC4
22# include <openssl/rc4.h>
23#endif
24#ifndef OPENSSL_NO_DES
25# include <openssl/des.h>
26#endif
27#ifndef OPENSSL_NO_IDEA
28# include <openssl/idea.h>
29#endif
30#ifndef OPENSSL_NO_BF
31# include <openssl/blowfish.h>
32#endif
33
34typedef enum OPTION_choice {
35    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
36    OPT_B, OPT_D, OPT_E, OPT_F, OPT_O, OPT_P, OPT_V, OPT_A, OPT_R
37} OPTION_CHOICE;
38
39const OPTIONS version_options[] = {
40    {"help", OPT_HELP, '-', "Display this summary"},
41    {"a", OPT_A, '-', "Show all data"},
42    {"b", OPT_B, '-', "Show build date"},
43    {"d", OPT_D, '-', "Show configuration directory"},
44    {"e", OPT_E, '-', "Show engines directory"},
45    {"f", OPT_F, '-', "Show compiler flags used"},
46    {"o", OPT_O, '-', "Show some internal datatype options"},
47    {"p", OPT_P, '-', "Show target build platform"},
48    {"r", OPT_R, '-', "Show random seeding options"},
49    {"v", OPT_V, '-', "Show library version"},
50    {NULL}
51};
52
53#if defined(OPENSSL_RAND_SEED_DEVRANDOM) || defined(OPENSSL_RAND_SEED_EGD)
54static void printlist(const char *prefix, const char **dev)
55{
56    printf("%s (", prefix);
57    for ( ; *dev != NULL; dev++)
58        printf(" \"%s\"", *dev);
59    printf(" )");
60}
61#endif
62
63int version_main(int argc, char **argv)
64{
65    int ret = 1, dirty = 0, seed = 0;
66    int cflags = 0, version = 0, date = 0, options = 0, platform = 0, dir = 0;
67    int engdir = 0;
68    char *prog;
69    OPTION_CHOICE o;
70
71    prog = opt_init(argc, argv, version_options);
72    while ((o = opt_next()) != OPT_EOF) {
73        switch (o) {
74        case OPT_EOF:
75        case OPT_ERR:
76opthelp:
77            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
78            goto end;
79        case OPT_HELP:
80            opt_help(version_options);
81            ret = 0;
82            goto end;
83        case OPT_B:
84            dirty = date = 1;
85            break;
86        case OPT_D:
87            dirty = dir = 1;
88            break;
89        case OPT_E:
90            dirty = engdir = 1;
91            break;
92        case OPT_F:
93            dirty = cflags = 1;
94            break;
95        case OPT_O:
96            dirty = options = 1;
97            break;
98        case OPT_P:
99            dirty = platform = 1;
100            break;
101        case OPT_R:
102            dirty = seed = 1;
103            break;
104        case OPT_V:
105            dirty = version = 1;
106            break;
107        case OPT_A:
108            seed = options = cflags = version = date = platform = dir = engdir
109                = 1;
110            break;
111        }
112    }
113    if (opt_num_rest() != 0) {
114        BIO_printf(bio_err, "Extra parameters given.\n");
115        goto opthelp;
116    }
117    if (!dirty)
118        version = 1;
119
120    if (version) {
121        if (OpenSSL_version_num() == OPENSSL_VERSION_NUMBER)
122            printf("%s\n", OpenSSL_version(OPENSSL_VERSION));
123        else
124            printf("%s (Library: %s)\n",
125                   OPENSSL_VERSION_TEXT, OpenSSL_version(OPENSSL_VERSION));
126    }
127    if (date)
128        printf("%s\n", OpenSSL_version(OPENSSL_BUILT_ON));
129    if (platform)
130        printf("%s\n", OpenSSL_version(OPENSSL_PLATFORM));
131    if (options) {
132        printf("options:  ");
133        printf("%s ", BN_options());
134#ifndef OPENSSL_NO_MD2
135        printf("%s ", MD2_options());
136#endif
137#ifndef OPENSSL_NO_RC4
138        printf("%s ", RC4_options());
139#endif
140#ifndef OPENSSL_NO_DES
141        printf("%s ", DES_options());
142#endif
143#ifndef OPENSSL_NO_IDEA
144        printf("%s ", IDEA_options());
145#endif
146#ifndef OPENSSL_NO_BF
147        printf("%s ", BF_options());
148#endif
149        printf("\n");
150    }
151    if (cflags)
152        printf("%s\n", OpenSSL_version(OPENSSL_CFLAGS));
153    if (dir)
154        printf("%s\n", OpenSSL_version(OPENSSL_DIR));
155    if (engdir)
156        printf("%s\n", OpenSSL_version(OPENSSL_ENGINES_DIR));
157    if (seed) {
158        printf("Seeding source:");
159#ifdef OPENSSL_RAND_SEED_RTDSC
160        printf(" rtdsc");
161#endif
162#ifdef OPENSSL_RAND_SEED_RDCPU
163        printf(" rdrand ( rdseed rdrand )");
164#endif
165#ifdef OPENSSL_RAND_SEED_LIBRANDOM
166        printf(" C-library-random");
167#endif
168#ifdef OPENSSL_RAND_SEED_GETRANDOM
169        printf(" getrandom-syscall");
170#endif
171#ifdef OPENSSL_RAND_SEED_DEVRANDOM
172        {
173            static const char *dev[] = { DEVRANDOM, NULL };
174            printlist(" random-device", dev);
175        }
176#endif
177#ifdef OPENSSL_RAND_SEED_EGD
178        {
179            static const char *dev[] = { DEVRANDOM_EGD, NULL };
180            printlist(" EGD", dev);
181        }
182#endif
183#ifdef OPENSSL_RAND_SEED_NONE
184        printf(" none");
185#endif
186#ifdef OPENSSL_RAND_SEED_OS
187        printf(" os-specific");
188#endif
189        printf("\n");
190    }
191    ret = 0;
192 end:
193    return ret;
194}
195