2 * Copyright 1995-2018 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 */
13 #include "internal/cryptlib.h"
16 #include <openssl/conf.h>
17 #include <openssl/conf_api.h>
19 static void value_free_hash(const CONF_VALUE *a, LHASH_OF(CONF_VALUE) *conf);
20 static void value_free_stack_doall(CONF_VALUE *a);
22 /* Up until OpenSSL 0.9.5a, this was get_section */
23 CONF_VALUE *_CONF_get_section(const CONF *conf, const char *section)
27 if ((conf == NULL) || (section == NULL))
30 vv.section = (char *)section;
31 v = lh_CONF_VALUE_retrieve(conf->data, &vv);
35 /* Up until OpenSSL 0.9.5a, this was CONF_get_section */
36 STACK_OF(CONF_VALUE) *_CONF_get_section_values(const CONF *conf,
41 v = _CONF_get_section(conf, section);
43 return ((STACK_OF(CONF_VALUE) *)v->value);
48 int _CONF_add_string(CONF *conf, CONF_VALUE *section, CONF_VALUE *value)
51 STACK_OF(CONF_VALUE) *ts;
53 ts = (STACK_OF(CONF_VALUE) *)section->value;
55 value->section = section->section;
56 if (!sk_CONF_VALUE_push(ts, value)) {
60 v = lh_CONF_VALUE_insert(conf->data, value);
62 (void)sk_CONF_VALUE_delete_ptr(ts, v);
63 OPENSSL_free(v->name);
64 OPENSSL_free(v->value);
70 char *_CONF_get_string(const CONF *conf, const char *section,
79 if (section != NULL) {
80 vv.name = (char *)name;
81 vv.section = (char *)section;
82 v = lh_CONF_VALUE_retrieve(conf->data, &vv);
85 if (strcmp(section, "ENV") == 0) {
86 p = ossl_safe_getenv(name);
91 vv.section = "default";
92 vv.name = (char *)name;
93 v = lh_CONF_VALUE_retrieve(conf->data, &vv);
99 return ossl_safe_getenv(name);
102 static unsigned long conf_value_hash(const CONF_VALUE *v)
104 return (OPENSSL_LH_strhash(v->section) << 2) ^ OPENSSL_LH_strhash(v->name);
107 static int conf_value_cmp(const CONF_VALUE *a, const CONF_VALUE *b)
111 if (a->section != b->section) {
112 i = strcmp(a->section, b->section);
117 if ((a->name != NULL) && (b->name != NULL)) {
118 i = strcmp(a->name, b->name);
120 } else if (a->name == b->name)
123 return ((a->name == NULL) ? -1 : 1);
126 int _CONF_new_data(CONF *conf)
131 if (conf->data == NULL) {
132 conf->data = lh_CONF_VALUE_new(conf_value_hash, conf_value_cmp);
133 if (conf->data == NULL)
139 typedef LHASH_OF(CONF_VALUE) LH_CONF_VALUE;
141 IMPLEMENT_LHASH_DOALL_ARG_CONST(CONF_VALUE, LH_CONF_VALUE);
143 void _CONF_free_data(CONF *conf)
145 if (conf == NULL || conf->data == NULL)
148 /* evil thing to make sure the 'OPENSSL_free()' works as expected */
149 lh_CONF_VALUE_set_down_load(conf->data, 0);
150 lh_CONF_VALUE_doall_LH_CONF_VALUE(conf->data, value_free_hash, conf->data);
153 * We now have only 'section' entries in the hash table. Due to problems
157 lh_CONF_VALUE_doall(conf->data, value_free_stack_doall);
158 lh_CONF_VALUE_free(conf->data);
161 static void value_free_hash(const CONF_VALUE *a, LHASH_OF(CONF_VALUE) *conf)
164 (void)lh_CONF_VALUE_delete(conf, a);
167 static void value_free_stack_doall(CONF_VALUE *a)
170 STACK_OF(CONF_VALUE) *sk;
176 sk = (STACK_OF(CONF_VALUE) *)a->value;
177 for (i = sk_CONF_VALUE_num(sk) - 1; i >= 0; i--) {
178 vv = sk_CONF_VALUE_value(sk, i);
179 OPENSSL_free(vv->value);
180 OPENSSL_free(vv->name);
183 sk_CONF_VALUE_free(sk);
184 OPENSSL_free(a->section);
188 /* Up until OpenSSL 0.9.5a, this was new_section */
189 CONF_VALUE *_CONF_new_section(CONF *conf, const char *section)
191 STACK_OF(CONF_VALUE) *sk = NULL;
193 CONF_VALUE *v = NULL, *vv;
195 if ((sk = sk_CONF_VALUE_new_null()) == NULL)
197 if ((v = OPENSSL_malloc(sizeof(*v))) == NULL)
199 i = strlen(section) + 1;
200 if ((v->section = OPENSSL_malloc(i)) == NULL)
203 memcpy(v->section, section, i);
205 v->value = (char *)sk;
207 vv = lh_CONF_VALUE_insert(conf->data, v);
208 if (vv != NULL || lh_CONF_VALUE_error(conf->data) > 0)
213 sk_CONF_VALUE_free(sk);
215 OPENSSL_free(v->section);