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1 /* conf_lib.c */ | |
2 /* Written by Richard Levitte (richard@levitte.org) for the OpenSSL | |
3 * project 2000. | |
4 */ | |
5 /* ==================================================================== | |
6 * Copyright (c) 2000 The OpenSSL Project. All rights reserved. | |
7 * | |
8 * Redistribution and use in source and binary forms, with or without | |
9 * modification, are permitted provided that the following conditions | |
10 * are met: | |
11 * | |
12 * 1. Redistributions of source code must retain the above copyright | |
13 * notice, this list of conditions and the following disclaimer. | |
14 * | |
15 * 2. Redistributions in binary form must reproduce the above copyright | |
16 * notice, this list of conditions and the following disclaimer in | |
17 * the documentation and/or other materials provided with the | |
18 * distribution. | |
19 * | |
20 * 3. All advertising materials mentioning features or use of this | |
21 * software must display the following acknowledgment: | |
22 * "This product includes software developed by the OpenSSL Project | |
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
24 * | |
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
26 * endorse or promote products derived from this software without | |
27 * prior written permission. For written permission, please contact | |
28 * licensing@OpenSSL.org. | |
29 * | |
30 * 5. Products derived from this software may not be called "OpenSSL" | |
31 * nor may "OpenSSL" appear in their names without prior written | |
32 * permission of the OpenSSL Project. | |
33 * | |
34 * 6. Redistributions of any form whatsoever must retain the following | |
35 * acknowledgment: | |
36 * "This product includes software developed by the OpenSSL Project | |
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
38 * | |
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
50 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
51 * ==================================================================== | |
52 * | |
53 * This product includes cryptographic software written by Eric Young | |
54 * (eay@cryptsoft.com). This product includes software written by Tim | |
55 * Hudson (tjh@cryptsoft.com). | |
56 * | |
57 */ | |
58 | |
59 #include <stdio.h> | |
60 #include <openssl/crypto.h> | |
61 #include <openssl/err.h> | |
62 #include <openssl/conf.h> | |
63 #include <openssl/conf_api.h> | |
64 #include <openssl/lhash.h> | |
65 | |
66 const char CONF_version[]="CONF" OPENSSL_VERSION_PTEXT; | |
67 | |
68 static CONF_METHOD *default_CONF_method=NULL; | |
69 | |
70 /* Init a 'CONF' structure from an old LHASH */ | |
71 | |
72 void CONF_set_nconf(CONF *conf, LHASH_OF(CONF_VALUE) *hash) | |
73 { | |
74 if (default_CONF_method == NULL) | |
75 default_CONF_method = NCONF_default(); | |
76 | |
77 default_CONF_method->init(conf); | |
78 conf->data = hash; | |
79 } | |
80 | |
81 /* The following section contains the "CONF classic" functions, | |
82 rewritten in terms of the new CONF interface. */ | |
83 | |
84 int CONF_set_default_method(CONF_METHOD *meth) | |
85 { | |
86 default_CONF_method = meth; | |
87 return 1; | |
88 } | |
89 | |
90 LHASH_OF(CONF_VALUE) *CONF_load(LHASH_OF(CONF_VALUE) *conf, const char *file, | |
91 long *eline) | |
92 { | |
93 LHASH_OF(CONF_VALUE) *ltmp; | |
94 BIO *in=NULL; | |
95 | |
96 #ifdef OPENSSL_SYS_VMS | |
97 in=BIO_new_file(file, "r"); | |
98 #else | |
99 in=BIO_new_file(file, "rb"); | |
100 #endif | |
101 if (in == NULL) | |
102 { | |
103 CONFerr(CONF_F_CONF_LOAD,ERR_R_SYS_LIB); | |
104 return NULL; | |
105 } | |
106 | |
107 ltmp = CONF_load_bio(conf, in, eline); | |
108 BIO_free(in); | |
109 | |
110 return ltmp; | |
111 } | |
112 | |
113 #ifndef OPENSSL_NO_FP_API | |
114 LHASH_OF(CONF_VALUE) *CONF_load_fp(LHASH_OF(CONF_VALUE) *conf, FILE *fp, | |
115 long *eline) | |
116 { | |
117 BIO *btmp; | |
118 LHASH_OF(CONF_VALUE) *ltmp; | |
119 if(!(btmp = BIO_new_fp(fp, BIO_NOCLOSE))) { | |
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 } | |
127 #endif | |
128 | |
129 LHASH_OF(CONF_VALUE) *CONF_load_bio(LHASH_OF(CONF_VALUE) *conf, BIO *bp, | |
130 long *eline) | |
131 { | |
132 CONF ctmp; | |
133 int ret; | |
134 | |
135 CONF_set_nconf(&ctmp, conf); | |
136 | |
137 ret = NCONF_load_bio(&ctmp, bp, eline); | |
138 if (ret) | |
139 return ctmp.data; | |
140 return NULL; | |
141 } | |
142 | |
143 STACK_OF(CONF_VALUE) *CONF_get_section(LHASH_OF(CONF_VALUE) *conf, | |
144 const char *section) | |
145 { | |
146 if (conf == NULL) | |
147 { | |
148 return NULL; | |
149 } | |
150 else | |
151 { | |
152 CONF ctmp; | |
153 CONF_set_nconf(&ctmp, conf); | |
154 return NCONF_get_section(&ctmp, section); | |
155 } | |
156 } | |
157 | |
158 char *CONF_get_string(LHASH_OF(CONF_VALUE) *conf,const char *group, | |
159 const char *name) | |
160 { | |
161 if (conf == NULL) | |
162 { | |
163 return NCONF_get_string(NULL, group, name); | |
164 } | |
165 else | |
166 { | |
167 CONF ctmp; | |
168 CONF_set_nconf(&ctmp, conf); | |
169 return NCONF_get_string(&ctmp, group, name); | |
170 } | |
171 } | |
172 | |
173 long CONF_get_number(LHASH_OF(CONF_VALUE) *conf,const char *group, | |
174 const char *name) | |
175 { | |
176 int status; | |
177 long result = 0; | |
178 | |
179 if (conf == NULL) | |
180 { | |
181 status = NCONF_get_number_e(NULL, group, name, &result); | |
182 } | |
183 else | |
184 { | |
185 CONF ctmp; | |
186 CONF_set_nconf(&ctmp, conf); | |
187 status = NCONF_get_number_e(&ctmp, group, name, &result); | |
188 } | |
189 | |
190 if (status == 0) | |
191 { | |
192 /* This function does not believe in errors... */ | |
193 ERR_clear_error(); | |
194 } | |
195 return result; | |
196 } | |
197 | |
198 void CONF_free(LHASH_OF(CONF_VALUE) *conf) | |
199 { | |
200 CONF ctmp; | |
201 CONF_set_nconf(&ctmp, conf); | |
202 NCONF_free_data(&ctmp); | |
203 } | |
204 | |
205 #ifndef OPENSSL_NO_FP_API | |
206 int CONF_dump_fp(LHASH_OF(CONF_VALUE) *conf, FILE *out) | |
207 { | |
208 BIO *btmp; | |
209 int ret; | |
210 | |
211 if(!(btmp = BIO_new_fp(out, BIO_NOCLOSE))) { | |
212 CONFerr(CONF_F_CONF_DUMP_FP,ERR_R_BUF_LIB); | |
213 return 0; | |
214 } | |
215 ret = CONF_dump_bio(conf, btmp); | |
216 BIO_free(btmp); | |
217 return ret; | |
218 } | |
219 #endif | |
220 | |
221 int CONF_dump_bio(LHASH_OF(CONF_VALUE) *conf, BIO *out) | |
222 { | |
223 CONF ctmp; | |
224 CONF_set_nconf(&ctmp, conf); | |
225 return NCONF_dump_bio(&ctmp, out); | |
226 } | |
227 | |
228 /* The following section contains the "New CONF" functions. They are | |
229 completely centralised around a new CONF structure that may contain | |
230 basically anything, but at least a method pointer and a table of data. | |
231 These functions are also written in terms of the bridge functions used | |
232 by the "CONF classic" functions, for consistency. */ | |
233 | |
234 CONF *NCONF_new(CONF_METHOD *meth) | |
235 { | |
236 CONF *ret; | |
237 | |
238 if (meth == NULL) | |
239 meth = NCONF_default(); | |
240 | |
241 ret = meth->create(meth); | |
242 if (ret == NULL) | |
243 { | |
244 CONFerr(CONF_F_NCONF_NEW,ERR_R_MALLOC_FAILURE); | |
245 return(NULL); | |
246 } | |
247 | |
248 return ret; | |
249 } | |
250 | |
251 void NCONF_free(CONF *conf) | |
252 { | |
253 if (conf == NULL) | |
254 return; | |
255 conf->meth->destroy(conf); | |
256 } | |
257 | |
258 void NCONF_free_data(CONF *conf) | |
259 { | |
260 if (conf == NULL) | |
261 return; | |
262 conf->meth->destroy_data(conf); | |
263 } | |
264 | |
265 int NCONF_load(CONF *conf, const char *file, long *eline) | |
266 { | |
267 if (conf == NULL) | |
268 { | |
269 CONFerr(CONF_F_NCONF_LOAD,CONF_R_NO_CONF); | |
270 return 0; | |
271 } | |
272 | |
273 return conf->meth->load(conf, file, eline); | |
274 } | |
275 | |
276 #ifndef OPENSSL_NO_FP_API | |
277 int NCONF_load_fp(CONF *conf, FILE *fp,long *eline) | |
278 { | |
279 BIO *btmp; | |
280 int ret; | |
281 if(!(btmp = BIO_new_fp(fp, BIO_NOCLOSE))) | |
282 { | |
283 CONFerr(CONF_F_NCONF_LOAD_FP,ERR_R_BUF_LIB); | |
284 return 0; | |
285 } | |
286 ret = NCONF_load_bio(conf, btmp, eline); | |
287 BIO_free(btmp); | |
288 return ret; | |
289 } | |
290 #endif | |
291 | |
292 int NCONF_load_bio(CONF *conf, BIO *bp,long *eline) | |
293 { | |
294 if (conf == NULL) | |
295 { | |
296 CONFerr(CONF_F_NCONF_LOAD_BIO,CONF_R_NO_CONF); | |
297 return 0; | |
298 } | |
299 | |
300 return conf->meth->load_bio(conf, bp, eline); | |
301 } | |
302 | |
303 STACK_OF(CONF_VALUE) *NCONF_get_section(const CONF *conf,const char *section) | |
304 { | |
305 if (conf == NULL) | |
306 { | |
307 CONFerr(CONF_F_NCONF_GET_SECTION,CONF_R_NO_CONF); | |
308 return NULL; | |
309 } | |
310 | |
311 if (section == NULL) | |
312 { | |
313 CONFerr(CONF_F_NCONF_GET_SECTION,CONF_R_NO_SECTION); | |
314 return NULL; | |
315 } | |
316 | |
317 return _CONF_get_section_values(conf, section); | |
318 } | |
319 | |
320 char *NCONF_get_string(const CONF *conf,const char *group,const char *name) | |
321 { | |
322 char *s = _CONF_get_string(conf, group, name); | |
323 | |
324 /* Since we may get a value from an environment variable even | |
325 if conf is NULL, let's check the value first */ | |
326 if (s) return s; | |
327 | |
328 if (conf == NULL) | |
329 { | |
330 CONFerr(CONF_F_NCONF_GET_STRING, | |
331 CONF_R_NO_CONF_OR_ENVIRONMENT_VARIABLE); | |
332 return NULL; | |
333 } | |
334 CONFerr(CONF_F_NCONF_GET_STRING, | |
335 CONF_R_NO_VALUE); | |
336 ERR_add_error_data(4,"group=",group," name=",name); | |
337 return NULL; | |
338 } | |
339 | |
340 int NCONF_get_number_e(const CONF *conf,const char *group,const char *name, | |
341 long *result) | |
342 { | |
343 char *str; | |
344 | |
345 if (result == NULL) | |
346 { | |
347 CONFerr(CONF_F_NCONF_GET_NUMBER_E,ERR_R_PASSED_NULL_PARAMETER); | |
348 return 0; | |
349 } | |
350 | |
351 str = NCONF_get_string(conf,group,name); | |
352 | |
353 if (str == NULL) | |
354 return 0; | |
355 | |
356 for (*result = 0;conf->meth->is_number(conf, *str);) | |
357 { | |
358 *result = (*result)*10 + conf->meth->to_int(conf, *str); | |
359 str++; | |
360 } | |
361 | |
362 return 1; | |
363 } | |
364 | |
365 #ifndef OPENSSL_NO_FP_API | |
366 int NCONF_dump_fp(const CONF *conf, FILE *out) | |
367 { | |
368 BIO *btmp; | |
369 int ret; | |
370 if(!(btmp = BIO_new_fp(out, BIO_NOCLOSE))) { | |
371 CONFerr(CONF_F_NCONF_DUMP_FP,ERR_R_BUF_LIB); | |
372 return 0; | |
373 } | |
374 ret = NCONF_dump_bio(conf, btmp); | |
375 BIO_free(btmp); | |
376 return ret; | |
377 } | |
378 #endif | |
379 | |
380 int NCONF_dump_bio(const CONF *conf, BIO *out) | |
381 { | |
382 if (conf == NULL) | |
383 { | |
384 CONFerr(CONF_F_NCONF_DUMP_BIO,CONF_R_NO_CONF); | |
385 return 0; | |
386 } | |
387 | |
388 return conf->meth->dump(conf, out); | |
389 } | |
390 | |
391 | |
392 /* This function should be avoided */ | |
393 #if 0 | |
394 long NCONF_get_number(CONF *conf,char *group,char *name) | |
395 { | |
396 int status; | |
397 long ret=0; | |
398 | |
399 status = NCONF_get_number_e(conf, group, name, &ret); | |
400 if (status == 0) | |
401 { | |
402 /* This function does not believe in errors... */ | |
403 ERR_get_error(); | |
404 } | |
405 return ret; | |
406 } | |
407 #endif | |
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