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Commit | Line | Data |
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62867571 RS |
1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
d86b6915 | 3 | * |
62867571 RS |
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 | |
d86b6915 RL |
8 | */ |
9 | ||
10 | /* Part of the code in here was originally in conf.c, which is now removed */ | |
11 | ||
2c1f5ce4 | 12 | #include <stdlib.h> |
0baed24c | 13 | #include <string.h> |
d86b6915 RL |
14 | #include <openssl/conf.h> |
15 | #include <openssl/conf_api.h> | |
62315760 | 16 | #include "e_os.h" |
d86b6915 | 17 | |
2a056de8 | 18 | static void value_free_hash(const CONF_VALUE *a, LHASH_OF(CONF_VALUE) *conf); |
5ce278a7 | 19 | static void value_free_stack_doall(CONF_VALUE *a); |
97b17195 | 20 | |
21346b7a | 21 | /* Up until OpenSSL 0.9.5a, this was get_section */ |
9dd5ae65 | 22 | CONF_VALUE *_CONF_get_section(const CONF *conf, const char *section) |
0f113f3e MC |
23 | { |
24 | CONF_VALUE *v, vv; | |
d86b6915 | 25 | |
0f113f3e MC |
26 | if ((conf == NULL) || (section == NULL)) |
27 | return (NULL); | |
28 | vv.name = NULL; | |
29 | vv.section = (char *)section; | |
30 | v = lh_CONF_VALUE_retrieve(conf->data, &vv); | |
31 | return (v); | |
32 | } | |
d86b6915 | 33 | |
21346b7a | 34 | /* Up until OpenSSL 0.9.5a, this was CONF_get_section */ |
9dd5ae65 | 35 | STACK_OF(CONF_VALUE) *_CONF_get_section_values(const CONF *conf, |
0f113f3e MC |
36 | const char *section) |
37 | { | |
38 | CONF_VALUE *v; | |
d86b6915 | 39 | |
0f113f3e MC |
40 | v = _CONF_get_section(conf, section); |
41 | if (v != NULL) | |
42 | return ((STACK_OF(CONF_VALUE) *)v->value); | |
43 | else | |
44 | return (NULL); | |
45 | } | |
d86b6915 RL |
46 | |
47 | int _CONF_add_string(CONF *conf, CONF_VALUE *section, CONF_VALUE *value) | |
0f113f3e MC |
48 | { |
49 | CONF_VALUE *v = NULL; | |
50 | STACK_OF(CONF_VALUE) *ts; | |
51 | ||
52 | ts = (STACK_OF(CONF_VALUE) *)section->value; | |
53 | ||
54 | value->section = section->section; | |
55 | if (!sk_CONF_VALUE_push(ts, value)) { | |
56 | return 0; | |
57 | } | |
58 | ||
59 | v = lh_CONF_VALUE_insert(conf->data, value); | |
60 | if (v != NULL) { | |
61 | (void)sk_CONF_VALUE_delete_ptr(ts, v); | |
62 | OPENSSL_free(v->name); | |
63 | OPENSSL_free(v->value); | |
64 | OPENSSL_free(v); | |
65 | } | |
66 | return 1; | |
67 | } | |
68 | ||
69 | char *_CONF_get_string(const CONF *conf, const char *section, | |
70 | const char *name) | |
71 | { | |
72 | CONF_VALUE *v, vv; | |
73 | char *p; | |
74 | ||
75 | if (name == NULL) | |
76 | return (NULL); | |
77 | if (conf != NULL) { | |
78 | if (section != NULL) { | |
79 | vv.name = (char *)name; | |
80 | vv.section = (char *)section; | |
81 | v = lh_CONF_VALUE_retrieve(conf->data, &vv); | |
82 | if (v != NULL) | |
83 | return (v->value); | |
84 | if (strcmp(section, "ENV") == 0) { | |
85 | p = getenv(name); | |
86 | if (p != NULL) | |
87 | return (p); | |
88 | } | |
89 | } | |
90 | vv.section = "default"; | |
91 | vv.name = (char *)name; | |
92 | v = lh_CONF_VALUE_retrieve(conf->data, &vv); | |
93 | if (v != NULL) | |
94 | return (v->value); | |
95 | else | |
96 | return (NULL); | |
97 | } else | |
98 | return (getenv(name)); | |
99 | } | |
100 | ||
3c1d6bbc | 101 | static unsigned long conf_value_hash(const CONF_VALUE *v) |
0f113f3e MC |
102 | { |
103 | return (lh_strhash(v->section) << 2) ^ lh_strhash(v->name); | |
104 | } | |
105 | ||
3c1d6bbc | 106 | static int conf_value_cmp(const CONF_VALUE *a, const CONF_VALUE *b) |
0f113f3e MC |
107 | { |
108 | int i; | |
109 | ||
110 | if (a->section != b->section) { | |
111 | i = strcmp(a->section, b->section); | |
112 | if (i) | |
113 | return (i); | |
114 | } | |
115 | ||
116 | if ((a->name != NULL) && (b->name != NULL)) { | |
117 | i = strcmp(a->name, b->name); | |
118 | return (i); | |
119 | } else if (a->name == b->name) | |
120 | return (0); | |
121 | else | |
122 | return ((a->name == NULL) ? -1 : 1); | |
123 | } | |
124 | ||
d86b6915 | 125 | int _CONF_new_data(CONF *conf) |
0f113f3e MC |
126 | { |
127 | if (conf == NULL) { | |
128 | return 0; | |
129 | } | |
62d0577e DSH |
130 | if (conf->data == NULL) { |
131 | conf->data = lh_CONF_VALUE_new(conf_value_hash, conf_value_cmp); | |
132 | if (conf->data == NULL) | |
0f113f3e | 133 | return 0; |
62d0577e | 134 | } |
0f113f3e MC |
135 | return 1; |
136 | } | |
d86b6915 | 137 | |
2a056de8 DSH |
138 | typedef LHASH_OF(CONF_VALUE) LH_CONF_VALUE; |
139 | ||
140 | IMPLEMENT_LHASH_DOALL_ARG_CONST(CONF_VALUE, LH_CONF_VALUE); | |
141 | ||
d86b6915 | 142 | void _CONF_free_data(CONF *conf) |
0f113f3e MC |
143 | { |
144 | if (conf == NULL || conf->data == NULL) | |
145 | return; | |
146 | ||
e6b5c341 DSH |
147 | /* evil thing to make sure the 'OPENSSL_free()' works as expected */ |
148 | lh_CONF_VALUE_set_down_load(conf->data, 0); | |
2a056de8 | 149 | lh_CONF_VALUE_doall_LH_CONF_VALUE(conf->data, value_free_hash, conf->data); |
0f113f3e MC |
150 | |
151 | /* | |
152 | * We now have only 'section' entries in the hash table. Due to problems | |
153 | * with | |
154 | */ | |
155 | ||
63c75cd6 | 156 | lh_CONF_VALUE_doall(conf->data, value_free_stack_doall); |
0f113f3e MC |
157 | lh_CONF_VALUE_free(conf->data); |
158 | } | |
d86b6915 | 159 | |
2a056de8 | 160 | static void value_free_hash(const CONF_VALUE *a, LHASH_OF(CONF_VALUE) *conf) |
0f113f3e MC |
161 | { |
162 | if (a->name != NULL) | |
163 | (void)lh_CONF_VALUE_delete(conf, a); | |
164 | } | |
d86b6915 | 165 | |
5ce278a7 | 166 | static void value_free_stack_doall(CONF_VALUE *a) |
0f113f3e MC |
167 | { |
168 | CONF_VALUE *vv; | |
169 | STACK_OF(CONF_VALUE) *sk; | |
170 | int i; | |
171 | ||
172 | if (a->name != NULL) | |
173 | return; | |
174 | ||
175 | sk = (STACK_OF(CONF_VALUE) *)a->value; | |
176 | for (i = sk_CONF_VALUE_num(sk) - 1; i >= 0; i--) { | |
177 | vv = sk_CONF_VALUE_value(sk, i); | |
178 | OPENSSL_free(vv->value); | |
179 | OPENSSL_free(vv->name); | |
180 | OPENSSL_free(vv); | |
181 | } | |
efa7dd64 | 182 | sk_CONF_VALUE_free(sk); |
0f113f3e MC |
183 | OPENSSL_free(a->section); |
184 | OPENSSL_free(a); | |
185 | } | |
d86b6915 | 186 | |
21346b7a | 187 | /* Up until OpenSSL 0.9.5a, this was new_section */ |
9dd5ae65 | 188 | CONF_VALUE *_CONF_new_section(CONF *conf, const char *section) |
0f113f3e MC |
189 | { |
190 | STACK_OF(CONF_VALUE) *sk = NULL; | |
efa7dd64 | 191 | int i; |
0f113f3e MC |
192 | CONF_VALUE *v = NULL, *vv; |
193 | ||
194 | if ((sk = sk_CONF_VALUE_new_null()) == NULL) | |
195 | goto err; | |
b4faea50 | 196 | if ((v = OPENSSL_malloc(sizeof(*v))) == NULL) |
0f113f3e MC |
197 | goto err; |
198 | i = strlen(section) + 1; | |
199 | if ((v->section = OPENSSL_malloc(i)) == NULL) | |
200 | goto err; | |
201 | ||
202 | memcpy(v->section, section, i); | |
203 | v->name = NULL; | |
204 | v->value = (char *)sk; | |
205 | ||
206 | vv = lh_CONF_VALUE_insert(conf->data, v); | |
207 | OPENSSL_assert(vv == NULL); | |
efa7dd64 RS |
208 | return v; |
209 | ||
0f113f3e | 210 | err: |
efa7dd64 RS |
211 | sk_CONF_VALUE_free(sk); |
212 | OPENSSL_free(v); | |
213 | return NULL; | |
0f113f3e | 214 | } |