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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. | |
8 * | |
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). | |
15 * | |
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. | |
22 * | |
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 :-). | |
37 * 4. If you include any Windows specific code (or a derivative thereof) from | |
38 * the apps directory (application code) you must include an acknowledgement: | |
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
40 * | |
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. | |
52 * | |
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 | |
61 #ifndef CONF_DEBUG | |
62 # undef NDEBUG /* avoid conflicting definitions */ | |
63 # define NDEBUG | |
64 #endif | |
65 | |
66 #include <assert.h> | |
67 #include <stdlib.h> | |
68 #include <string.h> | |
69 #include <openssl/conf.h> | |
70 #include <openssl/conf_api.h> | |
71 #include "e_os.h" | |
72 | |
73 static void value_free_hash_doall_arg(CONF_VALUE *a, | |
74 LHASH_OF(CONF_VALUE) *conf); | |
75 static void value_free_stack_doall(CONF_VALUE *a); | |
76 static IMPLEMENT_LHASH_DOALL_ARG_FN(value_free_hash, CONF_VALUE, | |
77 LHASH_OF(CONF_VALUE)) | |
78 static IMPLEMENT_LHASH_DOALL_FN(value_free_stack, CONF_VALUE) | |
79 | |
80 /* Up until OpenSSL 0.9.5a, this was get_section */ | |
81 CONF_VALUE *_CONF_get_section(const CONF *conf, const char *section) | |
82 { | |
83 CONF_VALUE *v,vv; | |
84 | |
85 if ((conf == NULL) || (section == NULL)) return(NULL); | |
86 vv.name=NULL; | |
87 vv.section=(char *)section; | |
88 v=lh_CONF_VALUE_retrieve(conf->data,&vv); | |
89 return(v); | |
90 } | |
91 | |
92 /* Up until OpenSSL 0.9.5a, this was CONF_get_section */ | |
93 STACK_OF(CONF_VALUE) *_CONF_get_section_values(const CONF *conf, | |
94 const char *section) | |
95 { | |
96 CONF_VALUE *v; | |
97 | |
98 v=_CONF_get_section(conf,section); | |
99 if (v != NULL) | |
100 return((STACK_OF(CONF_VALUE) *)v->value); | |
101 else | |
102 return(NULL); | |
103 } | |
104 | |
105 int _CONF_add_string(CONF *conf, CONF_VALUE *section, CONF_VALUE *value) | |
106 { | |
107 CONF_VALUE *v = NULL; | |
108 STACK_OF(CONF_VALUE) *ts; | |
109 | |
110 ts = (STACK_OF(CONF_VALUE) *)section->value; | |
111 | |
112 value->section=section->section; | |
113 if (!sk_CONF_VALUE_push(ts,value)) | |
114 { | |
115 return 0; | |
116 } | |
117 | |
118 v = lh_CONF_VALUE_insert(conf->data, value); | |
119 if (v != NULL) | |
120 { | |
121 (void)sk_CONF_VALUE_delete_ptr(ts,v); | |
122 OPENSSL_free(v->name); | |
123 OPENSSL_free(v->value); | |
124 OPENSSL_free(v); | |
125 } | |
126 return 1; | |
127 } | |
128 | |
129 char *_CONF_get_string(const CONF *conf, const char *section, const char *name) | |
130 { | |
131 CONF_VALUE *v,vv; | |
132 char *p; | |
133 | |
134 if (name == NULL) return(NULL); | |
135 if (conf != NULL) | |
136 { | |
137 if (section != NULL) | |
138 { | |
139 vv.name=(char *)name; | |
140 vv.section=(char *)section; | |
141 v=lh_CONF_VALUE_retrieve(conf->data,&vv); | |
142 if (v != NULL) return(v->value); | |
143 if (strcmp(section,"ENV") == 0) | |
144 { | |
145 p=getenv(name); | |
146 if (p != NULL) 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 } | |
157 else | |
158 return(getenv(name)); | |
159 } | |
160 | |
161 #if 0 /* There's no way to provide error checking with this function, so | |
162 force implementors of the higher levels to get a string and read | |
163 the number themselves. */ | |
164 long _CONF_get_number(CONF *conf, char *section, char *name) | |
165 { | |
166 char *str; | |
167 long ret=0; | |
168 | |
169 str=_CONF_get_string(conf,section,name); | |
170 if (str == NULL) return(0); | |
171 for (;;) | |
172 { | |
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 } | |
180 #endif | |
181 | |
182 static unsigned long conf_value_hash(const CONF_VALUE *v) | |
183 { | |
184 return (lh_strhash(v->section)<<2)^lh_strhash(v->name); | |
185 } | |
186 static IMPLEMENT_LHASH_HASH_FN(conf_value, CONF_VALUE) | |
187 | |
188 static int conf_value_cmp(const CONF_VALUE *a, const CONF_VALUE *b) | |
189 { | |
190 int i; | |
191 | |
192 if (a->section != b->section) | |
193 { | |
194 i=strcmp(a->section,b->section); | |
195 if (i) return(i); | |
196 } | |
197 | |
198 if ((a->name != NULL) && (b->name != NULL)) | |
199 { | |
200 i=strcmp(a->name,b->name); | |
201 return(i); | |
202 } | |
203 else if (a->name == b->name) | |
204 return(0); | |
205 else | |
206 return((a->name == NULL)?-1:1); | |
207 } | |
208 static IMPLEMENT_LHASH_COMP_FN(conf_value, CONF_VALUE) | |
209 | |
210 int _CONF_new_data(CONF *conf) | |
211 { | |
212 if (conf == NULL) | |
213 { | |
214 return 0; | |
215 } | |
216 if (conf->data == NULL) | |
217 if ((conf->data = lh_CONF_VALUE_new()) == NULL) | |
218 { | |
219 return 0; | |
220 } | |
221 return 1; | |
222 } | |
223 | |
224 void _CONF_free_data(CONF *conf) | |
225 { | |
226 if (conf == NULL || conf->data == NULL) return; | |
227 | |
228 lh_CONF_VALUE_doall_arg(conf->data, | |
229 LHASH_DOALL_ARG_FN(value_free_hash), | |
230 LHASH_OF(CONF_VALUE), conf->data); | |
231 | |
232 /* We now have only 'section' entries in the hash table. | |
233 * Due to problems with */ | |
234 | |
235 lh_CONF_VALUE_doall(conf->data, LHASH_DOALL_FN(value_free_stack)); | |
236 lh_CONF_VALUE_free(conf->data); | |
237 } | |
238 | |
239 static void value_free_hash_doall_arg(CONF_VALUE *a, LHASH_OF(CONF_VALUE) *conf) | |
240 { | |
241 if (a->name != NULL) | |
242 (void)lh_CONF_VALUE_delete(conf,a); | |
243 } | |
244 | |
245 static void value_free_stack_doall(CONF_VALUE *a) | |
246 { | |
247 CONF_VALUE *vv; | |
248 STACK_OF(CONF_VALUE) *sk; | |
249 int i; | |
250 | |
251 if (a->name != NULL) return; | |
252 | |
253 sk=(STACK_OF(CONF_VALUE) *)a->value; | |
254 for (i=sk_CONF_VALUE_num(sk)-1; i>=0; i--) | |
255 { | |
256 vv=sk_CONF_VALUE_value(sk,i); | |
257 OPENSSL_free(vv->value); | |
258 OPENSSL_free(vv->name); | |
259 OPENSSL_free(vv); | |
260 } | |
261 if (sk != NULL) sk_CONF_VALUE_free(sk); | |
262 OPENSSL_free(a->section); | |
263 OPENSSL_free(a); | |
264 } | |
265 | |
266 /* Up until OpenSSL 0.9.5a, this was new_section */ | |
267 CONF_VALUE *_CONF_new_section(CONF *conf, const char *section) | |
268 { | |
269 STACK_OF(CONF_VALUE) *sk=NULL; | |
270 int ok=0,i; | |
271 CONF_VALUE *v=NULL,*vv; | |
272 | |
273 if ((sk=sk_CONF_VALUE_new_null()) == NULL) | |
274 goto err; | |
275 if ((v=OPENSSL_malloc(sizeof(CONF_VALUE))) == NULL) | |
276 goto err; | |
277 i=strlen(section)+1; | |
278 if ((v->section=OPENSSL_malloc(i)) == NULL) | |
279 goto err; | |
280 | |
281 memcpy(v->section,section,i); | |
282 v->name=NULL; | |
283 v->value=(char *)sk; | |
284 | |
285 vv=lh_CONF_VALUE_insert(conf->data,v); | |
286 OPENSSL_assert(vv == NULL); | |
287 ok=1; | |
288 err: | |
289 if (!ok) | |
290 { | |
291 if (sk != NULL) sk_CONF_VALUE_free(sk); | |
292 if (v != NULL) OPENSSL_free(v); | |
293 v=NULL; | |
294 } | |
295 return(v); | |
296 } | |
297 | |
298 IMPLEMENT_STACK_OF(CONF_VALUE) | |
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