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d86b6915 RL |
1 | /* conf_api.c */ |
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
3 | * All rights reserved. | |
4 | * | |
5 | * This package is an SSL implementation written | |
6 | * by Eric Young (eay@cryptsoft.com). | |
7 | * The implementation was written so as to conform with Netscapes SSL. | |
0f113f3e | 8 | * |
d86b6915 RL |
9 | * This library is free for commercial and non-commercial use as long as |
10 | * the following conditions are aheared to. The following conditions | |
11 | * apply to all code found in this distribution, be it the RC4, RSA, | |
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
13 | * included with this distribution is covered by the same copyright terms | |
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
0f113f3e | 15 | * |
d86b6915 RL |
16 | * Copyright remains Eric Young's, and as such any Copyright notices in |
17 | * the code are not to be removed. | |
18 | * If this package is used in a product, Eric Young should be given attribution | |
19 | * as the author of the parts of the library used. | |
20 | * This can be in the form of a textual message at program startup or | |
21 | * in documentation (online or textual) provided with the package. | |
0f113f3e | 22 | * |
d86b6915 RL |
23 | * Redistribution and use in source and binary forms, with or without |
24 | * modification, are permitted provided that the following conditions | |
25 | * are met: | |
26 | * 1. Redistributions of source code must retain the copyright | |
27 | * notice, this list of conditions and the following disclaimer. | |
28 | * 2. Redistributions in binary form must reproduce the above copyright | |
29 | * notice, this list of conditions and the following disclaimer in the | |
30 | * documentation and/or other materials provided with the distribution. | |
31 | * 3. All advertising materials mentioning features or use of this software | |
32 | * must display the following acknowledgement: | |
33 | * "This product includes cryptographic software written by | |
34 | * Eric Young (eay@cryptsoft.com)" | |
35 | * The word 'cryptographic' can be left out if the rouines from the library | |
36 | * being used are not cryptographic related :-). | |
0f113f3e | 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d86b6915 RL |
38 | * the apps directory (application code) you must include an acknowledgement: |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 40 | * |
d86b6915 RL |
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
51 | * SUCH DAMAGE. | |
0f113f3e | 52 | * |
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53 | * The licence and distribution terms for any publically available version or |
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
55 | * copied and put under another distribution licence | |
56 | * [including the GNU Public Licence.] | |
57 | */ | |
58 | ||
59 | /* Part of the code in here was originally in conf.c, which is now removed */ | |
60 | ||
bbb8de09 | 61 | #ifndef CONF_DEBUG |
0f113f3e | 62 | # undef NDEBUG /* avoid conflicting definitions */ |
bbb8de09 BM |
63 | # define NDEBUG |
64 | #endif | |
65 | ||
66 | #include <assert.h> | |
2c1f5ce4 | 67 | #include <stdlib.h> |
0baed24c | 68 | #include <string.h> |
d86b6915 RL |
69 | #include <openssl/conf.h> |
70 | #include <openssl/conf_api.h> | |
62315760 | 71 | #include "e_os.h" |
d86b6915 | 72 | |
3c1d6bbc | 73 | static void value_free_hash_doall_arg(CONF_VALUE *a, |
0f113f3e | 74 | LHASH_OF(CONF_VALUE) *conf); |
5ce278a7 | 75 | static void value_free_stack_doall(CONF_VALUE *a); |
3c1d6bbc | 76 | static IMPLEMENT_LHASH_DOALL_ARG_FN(value_free_hash, CONF_VALUE, |
0f113f3e | 77 | LHASH_OF(CONF_VALUE)) |
5ce278a7 | 78 | static IMPLEMENT_LHASH_DOALL_FN(value_free_stack, CONF_VALUE) |
97b17195 | 79 | |
21346b7a | 80 | /* Up until OpenSSL 0.9.5a, this was get_section */ |
9dd5ae65 | 81 | CONF_VALUE *_CONF_get_section(const CONF *conf, const char *section) |
0f113f3e MC |
82 | { |
83 | CONF_VALUE *v, vv; | |
d86b6915 | 84 | |
0f113f3e MC |
85 | if ((conf == NULL) || (section == NULL)) |
86 | return (NULL); | |
87 | vv.name = NULL; | |
88 | vv.section = (char *)section; | |
89 | v = lh_CONF_VALUE_retrieve(conf->data, &vv); | |
90 | return (v); | |
91 | } | |
d86b6915 | 92 | |
21346b7a | 93 | /* Up until OpenSSL 0.9.5a, this was CONF_get_section */ |
9dd5ae65 | 94 | STACK_OF(CONF_VALUE) *_CONF_get_section_values(const CONF *conf, |
0f113f3e MC |
95 | const char *section) |
96 | { | |
97 | CONF_VALUE *v; | |
d86b6915 | 98 | |
0f113f3e MC |
99 | v = _CONF_get_section(conf, section); |
100 | if (v != NULL) | |
101 | return ((STACK_OF(CONF_VALUE) *)v->value); | |
102 | else | |
103 | return (NULL); | |
104 | } | |
d86b6915 RL |
105 | |
106 | int _CONF_add_string(CONF *conf, CONF_VALUE *section, CONF_VALUE *value) | |
0f113f3e MC |
107 | { |
108 | CONF_VALUE *v = NULL; | |
109 | STACK_OF(CONF_VALUE) *ts; | |
110 | ||
111 | ts = (STACK_OF(CONF_VALUE) *)section->value; | |
112 | ||
113 | value->section = section->section; | |
114 | if (!sk_CONF_VALUE_push(ts, value)) { | |
115 | return 0; | |
116 | } | |
117 | ||
118 | v = lh_CONF_VALUE_insert(conf->data, value); | |
119 | if (v != NULL) { | |
120 | (void)sk_CONF_VALUE_delete_ptr(ts, v); | |
121 | OPENSSL_free(v->name); | |
122 | OPENSSL_free(v->value); | |
123 | OPENSSL_free(v); | |
124 | } | |
125 | return 1; | |
126 | } | |
127 | ||
128 | char *_CONF_get_string(const CONF *conf, const char *section, | |
129 | const char *name) | |
130 | { | |
131 | CONF_VALUE *v, vv; | |
132 | char *p; | |
133 | ||
134 | if (name == NULL) | |
135 | return (NULL); | |
136 | if (conf != NULL) { | |
137 | if (section != NULL) { | |
138 | vv.name = (char *)name; | |
139 | vv.section = (char *)section; | |
140 | v = lh_CONF_VALUE_retrieve(conf->data, &vv); | |
141 | if (v != NULL) | |
142 | return (v->value); | |
143 | if (strcmp(section, "ENV") == 0) { | |
144 | p = getenv(name); | |
145 | if (p != NULL) | |
146 | return (p); | |
147 | } | |
148 | } | |
149 | vv.section = "default"; | |
150 | vv.name = (char *)name; | |
151 | v = lh_CONF_VALUE_retrieve(conf->data, &vv); | |
152 | if (v != NULL) | |
153 | return (v->value); | |
154 | else | |
155 | return (NULL); | |
156 | } else | |
157 | return (getenv(name)); | |
158 | } | |
159 | ||
160 | #if 0 /* There's no way to provide error checking | |
161 | * with this function, so force implementors | |
162 | * of the higher levels to get a string and | |
163 | * read the number themselves. */ | |
d86b6915 | 164 | long _CONF_get_number(CONF *conf, char *section, char *name) |
0f113f3e MC |
165 | { |
166 | char *str; | |
167 | long ret = 0; | |
168 | ||
169 | str = _CONF_get_string(conf, section, name); | |
170 | if (str == NULL) | |
171 | return (0); | |
172 | for (;;) { | |
173 | if (conf->meth->is_number(conf, *str)) | |
174 | ret = ret * 10 + conf->meth->to_int(conf, *str); | |
175 | else | |
176 | return (ret); | |
177 | str++; | |
178 | } | |
179 | } | |
c6f1787b | 180 | #endif |
d86b6915 | 181 | |
3c1d6bbc | 182 | static unsigned long conf_value_hash(const CONF_VALUE *v) |
0f113f3e MC |
183 | { |
184 | return (lh_strhash(v->section) << 2) ^ lh_strhash(v->name); | |
185 | } | |
186 | ||
3c1d6bbc BL |
187 | static IMPLEMENT_LHASH_HASH_FN(conf_value, CONF_VALUE) |
188 | ||
189 | static int conf_value_cmp(const CONF_VALUE *a, const CONF_VALUE *b) | |
0f113f3e MC |
190 | { |
191 | int i; | |
192 | ||
193 | if (a->section != b->section) { | |
194 | i = strcmp(a->section, b->section); | |
195 | if (i) | |
196 | return (i); | |
197 | } | |
198 | ||
199 | if ((a->name != NULL) && (b->name != NULL)) { | |
200 | i = strcmp(a->name, b->name); | |
201 | return (i); | |
202 | } else if (a->name == b->name) | |
203 | return (0); | |
204 | else | |
205 | return ((a->name == NULL) ? -1 : 1); | |
206 | } | |
207 | ||
3c1d6bbc BL |
208 | static IMPLEMENT_LHASH_COMP_FN(conf_value, CONF_VALUE) |
209 | ||
d86b6915 | 210 | int _CONF_new_data(CONF *conf) |
0f113f3e MC |
211 | { |
212 | if (conf == NULL) { | |
213 | return 0; | |
214 | } | |
215 | if (conf->data == NULL) | |
216 | if ((conf->data = lh_CONF_VALUE_new()) == NULL) { | |
217 | return 0; | |
218 | } | |
219 | return 1; | |
220 | } | |
d86b6915 RL |
221 | |
222 | void _CONF_free_data(CONF *conf) | |
0f113f3e MC |
223 | { |
224 | if (conf == NULL || conf->data == NULL) | |
225 | return; | |
226 | ||
227 | lh_CONF_VALUE_down_load(conf->data) = 0; /* evil thing to make * sure the | |
228 | * 'OPENSSL_free()' works as * | |
229 | * expected */ | |
230 | lh_CONF_VALUE_doall_arg(conf->data, | |
231 | LHASH_DOALL_ARG_FN(value_free_hash), | |
232 | LHASH_OF(CONF_VALUE), conf->data); | |
233 | ||
234 | /* | |
235 | * We now have only 'section' entries in the hash table. Due to problems | |
236 | * with | |
237 | */ | |
238 | ||
239 | lh_CONF_VALUE_doall(conf->data, LHASH_DOALL_FN(value_free_stack)); | |
240 | lh_CONF_VALUE_free(conf->data); | |
241 | } | |
d86b6915 | 242 | |
0f113f3e MC |
243 | static void value_free_hash_doall_arg(CONF_VALUE *a, |
244 | LHASH_OF(CONF_VALUE) *conf) | |
245 | { | |
246 | if (a->name != NULL) | |
247 | (void)lh_CONF_VALUE_delete(conf, a); | |
248 | } | |
d86b6915 | 249 | |
5ce278a7 | 250 | static void value_free_stack_doall(CONF_VALUE *a) |
0f113f3e MC |
251 | { |
252 | CONF_VALUE *vv; | |
253 | STACK_OF(CONF_VALUE) *sk; | |
254 | int i; | |
255 | ||
256 | if (a->name != NULL) | |
257 | return; | |
258 | ||
259 | sk = (STACK_OF(CONF_VALUE) *)a->value; | |
260 | for (i = sk_CONF_VALUE_num(sk) - 1; i >= 0; i--) { | |
261 | vv = sk_CONF_VALUE_value(sk, i); | |
262 | OPENSSL_free(vv->value); | |
263 | OPENSSL_free(vv->name); | |
264 | OPENSSL_free(vv); | |
265 | } | |
266 | if (sk != NULL) | |
267 | sk_CONF_VALUE_free(sk); | |
268 | OPENSSL_free(a->section); | |
269 | OPENSSL_free(a); | |
270 | } | |
d86b6915 | 271 | |
21346b7a | 272 | /* Up until OpenSSL 0.9.5a, this was new_section */ |
9dd5ae65 | 273 | CONF_VALUE *_CONF_new_section(CONF *conf, const char *section) |
0f113f3e MC |
274 | { |
275 | STACK_OF(CONF_VALUE) *sk = NULL; | |
276 | int ok = 0, i; | |
277 | CONF_VALUE *v = NULL, *vv; | |
278 | ||
279 | if ((sk = sk_CONF_VALUE_new_null()) == NULL) | |
280 | goto err; | |
281 | if ((v = OPENSSL_malloc(sizeof(CONF_VALUE))) == NULL) | |
282 | goto err; | |
283 | i = strlen(section) + 1; | |
284 | if ((v->section = OPENSSL_malloc(i)) == NULL) | |
285 | goto err; | |
286 | ||
287 | memcpy(v->section, section, i); | |
288 | v->name = NULL; | |
289 | v->value = (char *)sk; | |
290 | ||
291 | vv = lh_CONF_VALUE_insert(conf->data, v); | |
292 | OPENSSL_assert(vv == NULL); | |
293 | ok = 1; | |
294 | err: | |
295 | if (!ok) { | |
296 | if (sk != NULL) | |
297 | sk_CONF_VALUE_free(sk); | |
298 | if (v != NULL) | |
299 | OPENSSL_free(v); | |
300 | v = NULL; | |
301 | } | |
302 | return (v); | |
303 | } | |
d86b6915 RL |
304 | |
305 | IMPLEMENT_STACK_OF(CONF_VALUE) |