Correct PPTP server firewall rules chain.
[tomato/davidwu.git] / release / src / router / openssl / crypto / conf / conf_api.c
blobf5fcbb9f6b15d973837987130362f58c9d0154c2
1 /* conf_api.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
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).
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.
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)"
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.
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.]
59 /* Part of the code in here was originally in conf.c, which is now removed */
61 #ifndef CONF_DEBUG
62 # undef NDEBUG /* avoid conflicting definitions */
63 # define NDEBUG
64 #endif
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"
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)
80 /* Up until OpenSSL 0.9.5a, this was get_section */
81 CONF_VALUE *_CONF_get_section(const CONF *conf, const char *section)
83 CONF_VALUE *v,vv;
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);
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)
96 CONF_VALUE *v;
98 v=_CONF_get_section(conf,section);
99 if (v != NULL)
100 return((STACK_OF(CONF_VALUE) *)v->value);
101 else
102 return(NULL);
105 int _CONF_add_string(CONF *conf, CONF_VALUE *section, CONF_VALUE *value)
107 CONF_VALUE *v = NULL;
108 STACK_OF(CONF_VALUE) *ts;
110 ts = (STACK_OF(CONF_VALUE) *)section->value;
112 value->section=section->section;
113 if (!sk_CONF_VALUE_push(ts,value))
115 return 0;
118 v = lh_CONF_VALUE_insert(conf->data, value);
119 if (v != NULL)
121 (void)sk_CONF_VALUE_delete_ptr(ts,v);
122 OPENSSL_free(v->name);
123 OPENSSL_free(v->value);
124 OPENSSL_free(v);
126 return 1;
129 char *_CONF_get_string(const CONF *conf, const char *section, const char *name)
131 CONF_VALUE *v,vv;
132 char *p;
134 if (name == NULL) return(NULL);
135 if (conf != NULL)
137 if (section != NULL)
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)
145 p=getenv(name);
146 if (p != NULL) return(p);
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);
157 else
158 return(getenv(name));
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)
166 char *str;
167 long ret=0;
169 str=_CONF_get_string(conf,section,name);
170 if (str == NULL) return(0);
171 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++;
180 #endif
182 static unsigned long conf_value_hash(const CONF_VALUE *v)
184 return (lh_strhash(v->section)<<2)^lh_strhash(v->name);
186 static IMPLEMENT_LHASH_HASH_FN(conf_value, CONF_VALUE)
188 static int conf_value_cmp(const CONF_VALUE *a, const CONF_VALUE *b)
190 int i;
192 if (a->section != b->section)
194 i=strcmp(a->section,b->section);
195 if (i) return(i);
198 if ((a->name != NULL) && (b->name != NULL))
200 i=strcmp(a->name,b->name);
201 return(i);
203 else if (a->name == b->name)
204 return(0);
205 else
206 return((a->name == NULL)?-1:1);
208 static IMPLEMENT_LHASH_COMP_FN(conf_value, CONF_VALUE)
210 int _CONF_new_data(CONF *conf)
212 if (conf == NULL)
214 return 0;
216 if (conf->data == NULL)
217 if ((conf->data = lh_CONF_VALUE_new()) == NULL)
219 return 0;
221 return 1;
224 void _CONF_free_data(CONF *conf)
226 if (conf == NULL || conf->data == NULL) return;
228 lh_CONF_VALUE_down_load(conf->data)=0; /* evil thing to make
229 * sure the 'OPENSSL_free()' works as
230 * expected */
231 lh_CONF_VALUE_doall_arg(conf->data,
232 LHASH_DOALL_ARG_FN(value_free_hash),
233 LHASH_OF(CONF_VALUE), conf->data);
235 /* We now have only 'section' entries in the hash table.
236 * Due to problems with */
238 lh_CONF_VALUE_doall(conf->data, LHASH_DOALL_FN(value_free_stack));
239 lh_CONF_VALUE_free(conf->data);
242 static void value_free_hash_doall_arg(CONF_VALUE *a, LHASH_OF(CONF_VALUE) *conf)
244 if (a->name != NULL)
245 (void)lh_CONF_VALUE_delete(conf,a);
248 static void value_free_stack_doall(CONF_VALUE *a)
250 CONF_VALUE *vv;
251 STACK_OF(CONF_VALUE) *sk;
252 int i;
254 if (a->name != NULL) return;
256 sk=(STACK_OF(CONF_VALUE) *)a->value;
257 for (i=sk_CONF_VALUE_num(sk)-1; i>=0; i--)
259 vv=sk_CONF_VALUE_value(sk,i);
260 OPENSSL_free(vv->value);
261 OPENSSL_free(vv->name);
262 OPENSSL_free(vv);
264 if (sk != NULL) sk_CONF_VALUE_free(sk);
265 OPENSSL_free(a->section);
266 OPENSSL_free(a);
269 /* Up until OpenSSL 0.9.5a, this was new_section */
270 CONF_VALUE *_CONF_new_section(CONF *conf, const char *section)
272 STACK_OF(CONF_VALUE) *sk=NULL;
273 int ok=0,i;
274 CONF_VALUE *v=NULL,*vv;
276 if ((sk=sk_CONF_VALUE_new_null()) == NULL)
277 goto err;
278 if ((v=OPENSSL_malloc(sizeof(CONF_VALUE))) == NULL)
279 goto err;
280 i=strlen(section)+1;
281 if ((v->section=OPENSSL_malloc(i)) == NULL)
282 goto err;
284 memcpy(v->section,section,i);
285 v->name=NULL;
286 v->value=(char *)sk;
288 vv=lh_CONF_VALUE_insert(conf->data,v);
289 OPENSSL_assert(vv == NULL);
290 ok=1;
291 err:
292 if (!ok)
294 if (sk != NULL) sk_CONF_VALUE_free(sk);
295 if (v != NULL) OPENSSL_free(v);
296 v=NULL;
298 return(v);
301 IMPLEMENT_STACK_OF(CONF_VALUE)