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Commit | Line | Data |
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846e33c7 | 1 | /* |
a28d06f3 | 2 | * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. |
640588bb | 3 | * |
dffa7520 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
846e33c7 RS |
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 | |
640588bb BM |
8 | */ |
9 | ||
a0ad17bb | 10 | #include "apps.h" |
640588bb | 11 | #include <openssl/bio.h> |
f1b8b001 | 12 | #include <openssl/err.h> |
640588bb | 13 | #include <openssl/rand.h> |
3ee1eac2 | 14 | #include <openssl/conf.h> |
640588bb | 15 | |
54e5ba05 | 16 | static char *save_rand_file; |
22040fb7 | 17 | static STACK_OF(OPENSSL_STRING) *randfiles; |
640588bb | 18 | |
3ee1eac2 | 19 | void app_RAND_load_conf(CONF *c, const char *section) |
0f113f3e | 20 | { |
3ee1eac2 | 21 | const char *randfile = NCONF_get_string(c, section, "RANDFILE"); |
0f113f3e | 22 | |
3ee1eac2 RS |
23 | if (randfile == NULL) { |
24 | ERR_clear_error(); | |
25 | return; | |
2234212c | 26 | } |
3ee1eac2 RS |
27 | if (RAND_load_file(randfile, -1) < 0) { |
28 | BIO_printf(bio_err, "Can't load %s into RNG\n", randfile); | |
29 | ERR_print_errors(bio_err); | |
0f113f3e | 30 | } |
3ee1eac2 | 31 | if (save_rand_file == NULL) |
54e5ba05 | 32 | save_rand_file = OPENSSL_strdup(randfile); |
0f113f3e | 33 | } |
640588bb | 34 | |
22040fb7 | 35 | static int loadfiles(char *name) |
0f113f3e | 36 | { |
22040fb7 | 37 | char *p; |
3ee1eac2 | 38 | int last, ret = 1; |
640588bb | 39 | |
1287dabd | 40 | for (;;) { |
0f113f3e | 41 | last = 0; |
22040fb7 | 42 | for (p = name; *p != '\0' && *p != LIST_SEPARATOR_CHAR; p++) |
3ee1eac2 | 43 | continue; |
0f113f3e MC |
44 | if (*p == '\0') |
45 | last = 1; | |
46 | *p = '\0'; | |
22040fb7 RS |
47 | if (RAND_load_file(name, -1) < 0) { |
48 | BIO_printf(bio_err, "Can't load %s into RNG\n", name); | |
3ee1eac2 RS |
49 | ERR_print_errors(bio_err); |
50 | ret = 0; | |
51 | } | |
0f113f3e MC |
52 | if (last) |
53 | break; | |
22040fb7 RS |
54 | name = p + 1; |
55 | if (*name == '\0') | |
3ee1eac2 | 56 | break; |
0f113f3e | 57 | } |
22040fb7 RS |
58 | return ret; |
59 | } | |
60 | ||
61 | int app_RAND_load(void) | |
62 | { | |
63 | char *p; | |
64 | int i, ret = 1; | |
65 | ||
22040fb7 RS |
66 | for (i = 0; i < sk_OPENSSL_STRING_num(randfiles); i++) { |
67 | p = sk_OPENSSL_STRING_value(randfiles, i); | |
68 | if (!loadfiles(p)) | |
69 | ret = 0; | |
70 | } | |
71 | sk_OPENSSL_STRING_free(randfiles); | |
3ee1eac2 | 72 | return ret; |
0f113f3e | 73 | } |
640588bb | 74 | |
3ad60309 | 75 | int app_RAND_write(void) |
0f113f3e | 76 | { |
3ad60309 DDO |
77 | int ret = 1; |
78 | ||
3ee1eac2 | 79 | if (save_rand_file == NULL) |
3ad60309 | 80 | return 1; |
3ee1eac2 RS |
81 | if (RAND_write_file(save_rand_file) == -1) { |
82 | BIO_printf(bio_err, "Cannot write random bytes:\n"); | |
83 | ERR_print_errors(bio_err); | |
3ad60309 | 84 | ret = 0; |
f367ac2b | 85 | } |
54e5ba05 RS |
86 | OPENSSL_free(save_rand_file); |
87 | save_rand_file = NULL; | |
3ad60309 | 88 | return ret; |
0f113f3e | 89 | } |
640588bb | 90 | |
3ee1eac2 RS |
91 | |
92 | /* | |
93 | * See comments in opt_verify for explanation of this. | |
94 | */ | |
95 | enum r_range { OPT_R_ENUM }; | |
96 | ||
97 | int opt_rand(int opt) | |
0f113f3e | 98 | { |
3ee1eac2 RS |
99 | switch ((enum r_range)opt) { |
100 | case OPT_R__FIRST: | |
101 | case OPT_R__LAST: | |
102 | break; | |
103 | case OPT_R_RAND: | |
22040fb7 RS |
104 | if (randfiles == NULL |
105 | && (randfiles = sk_OPENSSL_STRING_new_null()) == NULL) | |
106 | return 0; | |
107 | if (!sk_OPENSSL_STRING_push(randfiles, opt_arg())) | |
108 | return 0; | |
3ee1eac2 RS |
109 | break; |
110 | case OPT_R_WRITERAND: | |
54e5ba05 RS |
111 | OPENSSL_free(save_rand_file); |
112 | save_rand_file = OPENSSL_strdup(opt_arg()); | |
3ee1eac2 RS |
113 | break; |
114 | } | |
115 | return 1; | |
0f113f3e | 116 | } |