2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 /* Part of the code in here was originally in conf.c, which is now removed */
14 #include <openssl/conf.h>
15 #include <openssl/conf_api.h>
18 static void value_free_hash(const CONF_VALUE *a, LHASH_OF(CONF_VALUE) *conf);
19 static void value_free_stack_doall(CONF_VALUE *a);
21 /* Up until OpenSSL 0.9.5a, this was get_section */
22 CONF_VALUE *_CONF_get_section(const CONF *conf, const char *section)
26 if ((conf == NULL) || (section == NULL))
29 vv.section = (char *)section;
30 v = lh_CONF_VALUE_retrieve(conf->data, &vv);
34 /* Up until OpenSSL 0.9.5a, this was CONF_get_section */
35 STACK_OF(CONF_VALUE) *_CONF_get_section_values(const CONF *conf,
40 v = _CONF_get_section(conf, section);
42 return ((STACK_OF(CONF_VALUE) *)v->value);
47 int _CONF_add_string(CONF *conf, CONF_VALUE *section, CONF_VALUE *value)
50 STACK_OF(CONF_VALUE) *ts;
52 ts = (STACK_OF(CONF_VALUE) *)section->value;
54 value->section = section->section;
55 if (!sk_CONF_VALUE_push(ts, value)) {
59 v = lh_CONF_VALUE_insert(conf->data, value);
61 (void)sk_CONF_VALUE_delete_ptr(ts, v);
62 OPENSSL_free(v->name);
63 OPENSSL_free(v->value);
69 char *_CONF_get_string(const CONF *conf, const char *section,
78 if (section != NULL) {
79 vv.name = (char *)name;
80 vv.section = (char *)section;
81 v = lh_CONF_VALUE_retrieve(conf->data, &vv);
84 if (strcmp(section, "ENV") == 0) {
90 vv.section = "default";
91 vv.name = (char *)name;
92 v = lh_CONF_VALUE_retrieve(conf->data, &vv);
98 return (getenv(name));
101 static unsigned long conf_value_hash(const CONF_VALUE *v)
103 return (OPENSSL_LH_strhash(v->section) << 2) ^ OPENSSL_LH_strhash(v->name);
106 static int conf_value_cmp(const CONF_VALUE *a, const CONF_VALUE *b)
110 if (a->section != b->section) {
111 i = strcmp(a->section, b->section);
116 if ((a->name != NULL) && (b->name != NULL)) {
117 i = strcmp(a->name, b->name);
119 } else if (a->name == b->name)
122 return ((a->name == NULL) ? -1 : 1);
125 int _CONF_new_data(CONF *conf)
130 if (conf->data == NULL) {
131 conf->data = lh_CONF_VALUE_new(conf_value_hash, conf_value_cmp);
132 if (conf->data == NULL)
138 typedef LHASH_OF(CONF_VALUE) LH_CONF_VALUE;
140 IMPLEMENT_LHASH_DOALL_ARG_CONST(CONF_VALUE, LH_CONF_VALUE);
142 void _CONF_free_data(CONF *conf)
144 if (conf == NULL || conf->data == NULL)
147 /* evil thing to make sure the 'OPENSSL_free()' works as expected */
148 lh_CONF_VALUE_set_down_load(conf->data, 0);
149 lh_CONF_VALUE_doall_LH_CONF_VALUE(conf->data, value_free_hash, conf->data);
152 * We now have only 'section' entries in the hash table. Due to problems
156 lh_CONF_VALUE_doall(conf->data, value_free_stack_doall);
157 lh_CONF_VALUE_free(conf->data);
160 static void value_free_hash(const CONF_VALUE *a, LHASH_OF(CONF_VALUE) *conf)
163 (void)lh_CONF_VALUE_delete(conf, a);
166 static void value_free_stack_doall(CONF_VALUE *a)
169 STACK_OF(CONF_VALUE) *sk;
175 sk = (STACK_OF(CONF_VALUE) *)a->value;
176 for (i = sk_CONF_VALUE_num(sk) - 1; i >= 0; i--) {
177 vv = sk_CONF_VALUE_value(sk, i);
178 OPENSSL_free(vv->value);
179 OPENSSL_free(vv->name);
182 sk_CONF_VALUE_free(sk);
183 OPENSSL_free(a->section);
187 /* Up until OpenSSL 0.9.5a, this was new_section */
188 CONF_VALUE *_CONF_new_section(CONF *conf, const char *section)
190 STACK_OF(CONF_VALUE) *sk = NULL;
192 CONF_VALUE *v = NULL, *vv;
194 if ((sk = sk_CONF_VALUE_new_null()) == NULL)
196 if ((v = OPENSSL_malloc(sizeof(*v))) == NULL)
198 i = strlen(section) + 1;
199 if ((v->section = OPENSSL_malloc(i)) == NULL)
202 memcpy(v->section, section, i);
204 v->value = (char *)sk;
206 vv = lh_CONF_VALUE_insert(conf->data, v);
207 OPENSSL_assert(vv == NULL);
211 sk_CONF_VALUE_free(sk);