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d86b6915 | 1 | /* conf_lib.c */ |
0f113f3e MC |
2 | /* |
3 | * Written by Richard Levitte (richard@levitte.org) for the OpenSSL project | |
4 | * 2000. | |
d86b6915 RL |
5 | */ |
6 | /* ==================================================================== | |
7 | * Copyright (c) 2000 The OpenSSL Project. All rights reserved. | |
8 | * | |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions | |
11 | * are met: | |
12 | * | |
13 | * 1. Redistributions of source code must retain the above copyright | |
0f113f3e | 14 | * notice, this list of conditions and the following disclaimer. |
d86b6915 RL |
15 | * |
16 | * 2. Redistributions in binary form must reproduce the above copyright | |
17 | * notice, this list of conditions and the following disclaimer in | |
18 | * the documentation and/or other materials provided with the | |
19 | * distribution. | |
20 | * | |
21 | * 3. All advertising materials mentioning features or use of this | |
22 | * software must display the following acknowledgment: | |
23 | * "This product includes software developed by the OpenSSL Project | |
24 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
25 | * | |
26 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
27 | * endorse or promote products derived from this software without | |
28 | * prior written permission. For written permission, please contact | |
29 | * licensing@OpenSSL.org. | |
30 | * | |
31 | * 5. Products derived from this software may not be called "OpenSSL" | |
32 | * nor may "OpenSSL" appear in their names without prior written | |
33 | * permission of the OpenSSL Project. | |
34 | * | |
35 | * 6. Redistributions of any form whatsoever must retain the following | |
36 | * acknowledgment: | |
37 | * "This product includes software developed by the OpenSSL Project | |
38 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
39 | * | |
40 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
41 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
43 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
44 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
45 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
46 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
47 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
49 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
50 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
51 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
52 | * ==================================================================== | |
53 | * | |
54 | * This product includes cryptographic software written by Eric Young | |
55 | * (eay@cryptsoft.com). This product includes software written by Tim | |
56 | * Hudson (tjh@cryptsoft.com). | |
57 | * | |
58 | */ | |
59 | ||
60 | #include <stdio.h> | |
61 | #include <openssl/crypto.h> | |
62 | #include <openssl/err.h> | |
63 | #include <openssl/conf.h> | |
64 | #include <openssl/conf_api.h> | |
65 | #include <openssl/lhash.h> | |
66 | ||
0f113f3e | 67 | static CONF_METHOD *default_CONF_method = NULL; |
d86b6915 | 68 | |
b7a26e6d DSH |
69 | /* Init a 'CONF' structure from an old LHASH */ |
70 | ||
3c1d6bbc | 71 | void CONF_set_nconf(CONF *conf, LHASH_OF(CONF_VALUE) *hash) |
0f113f3e MC |
72 | { |
73 | if (default_CONF_method == NULL) | |
74 | default_CONF_method = NCONF_default(); | |
b7a26e6d | 75 | |
0f113f3e MC |
76 | default_CONF_method->init(conf); |
77 | conf->data = hash; | |
78 | } | |
b7a26e6d | 79 | |
0f113f3e MC |
80 | /* |
81 | * The following section contains the "CONF classic" functions, rewritten in | |
82 | * terms of the new CONF interface. | |
83 | */ | |
d86b6915 RL |
84 | |
85 | int CONF_set_default_method(CONF_METHOD *meth) | |
0f113f3e MC |
86 | { |
87 | default_CONF_method = meth; | |
88 | return 1; | |
89 | } | |
d86b6915 | 90 | |
3c1d6bbc | 91 | LHASH_OF(CONF_VALUE) *CONF_load(LHASH_OF(CONF_VALUE) *conf, const char *file, |
0f113f3e MC |
92 | long *eline) |
93 | { | |
94 | LHASH_OF(CONF_VALUE) *ltmp; | |
95 | BIO *in = NULL; | |
d86b6915 | 96 | |
bc36ee62 | 97 | #ifdef OPENSSL_SYS_VMS |
0f113f3e | 98 | in = BIO_new_file(file, "r"); |
d86b6915 | 99 | #else |
0f113f3e | 100 | in = BIO_new_file(file, "rb"); |
d86b6915 | 101 | #endif |
0f113f3e MC |
102 | if (in == NULL) { |
103 | CONFerr(CONF_F_CONF_LOAD, ERR_R_SYS_LIB); | |
104 | return NULL; | |
105 | } | |
d86b6915 | 106 | |
0f113f3e MC |
107 | ltmp = CONF_load_bio(conf, in, eline); |
108 | BIO_free(in); | |
d86b6915 | 109 | |
0f113f3e MC |
110 | return ltmp; |
111 | } | |
d86b6915 | 112 | |
4b618848 | 113 | #ifndef OPENSSL_NO_STDIO |
3c1d6bbc | 114 | LHASH_OF(CONF_VALUE) *CONF_load_fp(LHASH_OF(CONF_VALUE) *conf, FILE *fp, |
0f113f3e MC |
115 | long *eline) |
116 | { | |
117 | BIO *btmp; | |
118 | LHASH_OF(CONF_VALUE) *ltmp; | |
75ebbd9a | 119 | if ((btmp = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) { |
0f113f3e MC |
120 | CONFerr(CONF_F_CONF_LOAD_FP, ERR_R_BUF_LIB); |
121 | return NULL; | |
122 | } | |
123 | ltmp = CONF_load_bio(conf, btmp, eline); | |
124 | BIO_free(btmp); | |
125 | return ltmp; | |
126 | } | |
d86b6915 RL |
127 | #endif |
128 | ||
3c1d6bbc | 129 | LHASH_OF(CONF_VALUE) *CONF_load_bio(LHASH_OF(CONF_VALUE) *conf, BIO *bp, |
0f113f3e MC |
130 | long *eline) |
131 | { | |
132 | CONF ctmp; | |
133 | int ret; | |
d86b6915 | 134 | |
0f113f3e | 135 | CONF_set_nconf(&ctmp, conf); |
d86b6915 | 136 | |
0f113f3e MC |
137 | ret = NCONF_load_bio(&ctmp, bp, eline); |
138 | if (ret) | |
139 | return ctmp.data; | |
140 | return NULL; | |
141 | } | |
d86b6915 | 142 | |
3c1d6bbc | 143 | STACK_OF(CONF_VALUE) *CONF_get_section(LHASH_OF(CONF_VALUE) *conf, |
0f113f3e MC |
144 | const char *section) |
145 | { | |
146 | if (conf == NULL) { | |
147 | return NULL; | |
148 | } else { | |
149 | CONF ctmp; | |
150 | CONF_set_nconf(&ctmp, conf); | |
151 | return NCONF_get_section(&ctmp, section); | |
152 | } | |
153 | } | |
154 | ||
155 | char *CONF_get_string(LHASH_OF(CONF_VALUE) *conf, const char *group, | |
156 | const char *name) | |
157 | { | |
158 | if (conf == NULL) { | |
159 | return NCONF_get_string(NULL, group, name); | |
160 | } else { | |
161 | CONF ctmp; | |
162 | CONF_set_nconf(&ctmp, conf); | |
163 | return NCONF_get_string(&ctmp, group, name); | |
164 | } | |
165 | } | |
166 | ||
167 | long CONF_get_number(LHASH_OF(CONF_VALUE) *conf, const char *group, | |
168 | const char *name) | |
169 | { | |
170 | int status; | |
171 | long result = 0; | |
172 | ||
173 | if (conf == NULL) { | |
174 | status = NCONF_get_number_e(NULL, group, name, &result); | |
175 | } else { | |
176 | CONF ctmp; | |
177 | CONF_set_nconf(&ctmp, conf); | |
178 | status = NCONF_get_number_e(&ctmp, group, name, &result); | |
179 | } | |
180 | ||
181 | if (status == 0) { | |
182 | /* This function does not believe in errors... */ | |
183 | ERR_clear_error(); | |
184 | } | |
185 | return result; | |
186 | } | |
d86b6915 | 187 | |
3c1d6bbc | 188 | void CONF_free(LHASH_OF(CONF_VALUE) *conf) |
0f113f3e MC |
189 | { |
190 | CONF ctmp; | |
191 | CONF_set_nconf(&ctmp, conf); | |
192 | NCONF_free_data(&ctmp); | |
193 | } | |
d86b6915 | 194 | |
4b618848 | 195 | #ifndef OPENSSL_NO_STDIO |
3c1d6bbc | 196 | int CONF_dump_fp(LHASH_OF(CONF_VALUE) *conf, FILE *out) |
0f113f3e MC |
197 | { |
198 | BIO *btmp; | |
199 | int ret; | |
200 | ||
75ebbd9a | 201 | if ((btmp = BIO_new_fp(out, BIO_NOCLOSE)) == NULL) { |
0f113f3e MC |
202 | CONFerr(CONF_F_CONF_DUMP_FP, ERR_R_BUF_LIB); |
203 | return 0; | |
204 | } | |
205 | ret = CONF_dump_bio(conf, btmp); | |
206 | BIO_free(btmp); | |
207 | return ret; | |
208 | } | |
d86b6915 RL |
209 | #endif |
210 | ||
3c1d6bbc | 211 | int CONF_dump_bio(LHASH_OF(CONF_VALUE) *conf, BIO *out) |
0f113f3e MC |
212 | { |
213 | CONF ctmp; | |
214 | CONF_set_nconf(&ctmp, conf); | |
215 | return NCONF_dump_bio(&ctmp, out); | |
216 | } | |
217 | ||
218 | /* | |
219 | * The following section contains the "New CONF" functions. They are | |
220 | * completely centralised around a new CONF structure that may contain | |
221 | * basically anything, but at least a method pointer and a table of data. | |
222 | * These functions are also written in terms of the bridge functions used by | |
223 | * the "CONF classic" functions, for consistency. | |
224 | */ | |
d86b6915 RL |
225 | |
226 | CONF *NCONF_new(CONF_METHOD *meth) | |
0f113f3e MC |
227 | { |
228 | CONF *ret; | |
d86b6915 | 229 | |
0f113f3e MC |
230 | if (meth == NULL) |
231 | meth = NCONF_default(); | |
d86b6915 | 232 | |
0f113f3e MC |
233 | ret = meth->create(meth); |
234 | if (ret == NULL) { | |
235 | CONFerr(CONF_F_NCONF_NEW, ERR_R_MALLOC_FAILURE); | |
236 | return (NULL); | |
237 | } | |
d86b6915 | 238 | |
0f113f3e MC |
239 | return ret; |
240 | } | |
d86b6915 RL |
241 | |
242 | void NCONF_free(CONF *conf) | |
0f113f3e MC |
243 | { |
244 | if (conf == NULL) | |
245 | return; | |
246 | conf->meth->destroy(conf); | |
247 | } | |
d86b6915 RL |
248 | |
249 | void NCONF_free_data(CONF *conf) | |
0f113f3e MC |
250 | { |
251 | if (conf == NULL) | |
252 | return; | |
253 | conf->meth->destroy_data(conf); | |
254 | } | |
d86b6915 RL |
255 | |
256 | int NCONF_load(CONF *conf, const char *file, long *eline) | |
0f113f3e MC |
257 | { |
258 | if (conf == NULL) { | |
259 | CONFerr(CONF_F_NCONF_LOAD, CONF_R_NO_CONF); | |
260 | return 0; | |
261 | } | |
d86b6915 | 262 | |
0f113f3e MC |
263 | return conf->meth->load(conf, file, eline); |
264 | } | |
d86b6915 | 265 | |
4b618848 | 266 | #ifndef OPENSSL_NO_STDIO |
0f113f3e MC |
267 | int NCONF_load_fp(CONF *conf, FILE *fp, long *eline) |
268 | { | |
269 | BIO *btmp; | |
270 | int ret; | |
75ebbd9a | 271 | if ((btmp = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) { |
0f113f3e MC |
272 | CONFerr(CONF_F_NCONF_LOAD_FP, ERR_R_BUF_LIB); |
273 | return 0; | |
274 | } | |
275 | ret = NCONF_load_bio(conf, btmp, eline); | |
276 | BIO_free(btmp); | |
277 | return ret; | |
278 | } | |
d86b6915 RL |
279 | #endif |
280 | ||
0f113f3e MC |
281 | int NCONF_load_bio(CONF *conf, BIO *bp, long *eline) |
282 | { | |
283 | if (conf == NULL) { | |
284 | CONFerr(CONF_F_NCONF_LOAD_BIO, CONF_R_NO_CONF); | |
285 | return 0; | |
286 | } | |
287 | ||
288 | return conf->meth->load_bio(conf, bp, eline); | |
289 | } | |
290 | ||
291 | STACK_OF(CONF_VALUE) *NCONF_get_section(const CONF *conf, const char *section) | |
292 | { | |
293 | if (conf == NULL) { | |
294 | CONFerr(CONF_F_NCONF_GET_SECTION, CONF_R_NO_CONF); | |
295 | return NULL; | |
296 | } | |
297 | ||
298 | if (section == NULL) { | |
299 | CONFerr(CONF_F_NCONF_GET_SECTION, CONF_R_NO_SECTION); | |
300 | return NULL; | |
301 | } | |
302 | ||
303 | return _CONF_get_section_values(conf, section); | |
304 | } | |
305 | ||
306 | char *NCONF_get_string(const CONF *conf, const char *group, const char *name) | |
307 | { | |
308 | char *s = _CONF_get_string(conf, group, name); | |
309 | ||
310 | /* | |
311 | * Since we may get a value from an environment variable even if conf is | |
312 | * NULL, let's check the value first | |
313 | */ | |
314 | if (s) | |
315 | return s; | |
316 | ||
317 | if (conf == NULL) { | |
318 | CONFerr(CONF_F_NCONF_GET_STRING, | |
319 | CONF_R_NO_CONF_OR_ENVIRONMENT_VARIABLE); | |
320 | return NULL; | |
321 | } | |
322 | CONFerr(CONF_F_NCONF_GET_STRING, CONF_R_NO_VALUE); | |
323 | ERR_add_error_data(4, "group=", group, " name=", name); | |
324 | return NULL; | |
325 | } | |
326 | ||
327 | int NCONF_get_number_e(const CONF *conf, const char *group, const char *name, | |
328 | long *result) | |
329 | { | |
330 | char *str; | |
331 | ||
332 | if (result == NULL) { | |
333 | CONFerr(CONF_F_NCONF_GET_NUMBER_E, ERR_R_PASSED_NULL_PARAMETER); | |
334 | return 0; | |
335 | } | |
336 | ||
337 | str = NCONF_get_string(conf, group, name); | |
338 | ||
339 | if (str == NULL) | |
340 | return 0; | |
341 | ||
342 | for (*result = 0; conf->meth->is_number(conf, *str);) { | |
343 | *result = (*result) * 10 + conf->meth->to_int(conf, *str); | |
344 | str++; | |
345 | } | |
346 | ||
347 | return 1; | |
348 | } | |
d86b6915 | 349 | |
4b618848 | 350 | #ifndef OPENSSL_NO_STDIO |
9dd5ae65 | 351 | int NCONF_dump_fp(const CONF *conf, FILE *out) |
0f113f3e MC |
352 | { |
353 | BIO *btmp; | |
354 | int ret; | |
75ebbd9a | 355 | if ((btmp = BIO_new_fp(out, BIO_NOCLOSE)) == NULL) { |
0f113f3e MC |
356 | CONFerr(CONF_F_NCONF_DUMP_FP, ERR_R_BUF_LIB); |
357 | return 0; | |
358 | } | |
359 | ret = NCONF_dump_bio(conf, btmp); | |
360 | BIO_free(btmp); | |
361 | return ret; | |
362 | } | |
d86b6915 RL |
363 | #endif |
364 | ||
9dd5ae65 | 365 | int NCONF_dump_bio(const CONF *conf, BIO *out) |
0f113f3e MC |
366 | { |
367 | if (conf == NULL) { | |
368 | CONFerr(CONF_F_NCONF_DUMP_BIO, CONF_R_NO_CONF); | |
369 | return 0; | |
370 | } | |
d86b6915 | 371 | |
0f113f3e MC |
372 | return conf->meth->dump(conf, out); |
373 | } |