309 lines
9.6 KiB
C
309 lines
9.6 KiB
C
/* conf_api.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/* Part of the code in here was originally in conf.c, which is now removed */
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#ifndef CONF_DEBUG
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# undef NDEBUG /* avoid conflicting definitions */
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# define NDEBUG
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#endif
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include "cryptlib.h"
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#include <openssl/conf.h>
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#include <openssl/conf_api.h>
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#include "e_os.h"
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static void value_free_hash_doall_arg(CONF_VALUE *a,
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LHASH_OF(CONF_VALUE) *conf);
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static void value_free_stack_doall(CONF_VALUE *a);
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static IMPLEMENT_LHASH_DOALL_ARG_FN(value_free_hash, CONF_VALUE,
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LHASH_OF(CONF_VALUE))
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static IMPLEMENT_LHASH_DOALL_FN(value_free_stack, CONF_VALUE)
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/* Up until OpenSSL 0.9.5a, this was get_section */
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CONF_VALUE *_CONF_get_section(const CONF *conf, const char *section)
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{
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CONF_VALUE *v, vv;
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if ((conf == NULL) || (section == NULL))
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return (NULL);
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vv.name = NULL;
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vv.section = (char *)section;
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v = lh_CONF_VALUE_retrieve(conf->data, &vv);
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return (v);
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}
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/* Up until OpenSSL 0.9.5a, this was CONF_get_section */
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STACK_OF(CONF_VALUE) *_CONF_get_section_values(const CONF *conf,
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const char *section)
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{
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CONF_VALUE *v;
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v = _CONF_get_section(conf, section);
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if (v != NULL)
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return ((STACK_OF(CONF_VALUE) *)v->value);
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else
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return (NULL);
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}
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int _CONF_add_string(CONF *conf, CONF_VALUE *section, CONF_VALUE *value)
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{
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CONF_VALUE *v = NULL;
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STACK_OF(CONF_VALUE) *ts;
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ts = (STACK_OF(CONF_VALUE) *)section->value;
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value->section = section->section;
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if (!sk_CONF_VALUE_push(ts, value)) {
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return 0;
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}
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v = lh_CONF_VALUE_insert(conf->data, value);
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if (v != NULL) {
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(void)sk_CONF_VALUE_delete_ptr(ts, v);
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OPENSSL_free(v->name);
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OPENSSL_free(v->value);
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OPENSSL_free(v);
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}
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return 1;
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}
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char *_CONF_get_string(const CONF *conf, const char *section,
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const char *name)
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{
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CONF_VALUE *v, vv;
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char *p;
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if (name == NULL)
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return (NULL);
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if (conf != NULL) {
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if (section != NULL) {
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vv.name = (char *)name;
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vv.section = (char *)section;
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v = lh_CONF_VALUE_retrieve(conf->data, &vv);
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if (v != NULL)
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return (v->value);
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if (strcmp(section, "ENV") == 0) {
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p = ossl_safe_getenv(name);
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if (p != NULL)
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return (p);
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}
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}
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vv.section = "default";
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vv.name = (char *)name;
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v = lh_CONF_VALUE_retrieve(conf->data, &vv);
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if (v != NULL)
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return (v->value);
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else
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return (NULL);
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} else
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return (ossl_safe_getenv(name));
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}
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#if 0 /* There's no way to provide error checking
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* with this function, so force implementors
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* of the higher levels to get a string and
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* read the number themselves. */
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long _CONF_get_number(CONF *conf, char *section, char *name)
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{
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char *str;
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long ret = 0;
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str = _CONF_get_string(conf, section, name);
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if (str == NULL)
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return (0);
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for (;;) {
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if (conf->meth->is_number(conf, *str))
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ret = ret * 10 + conf->meth->to_int(conf, *str);
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else
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return (ret);
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str++;
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}
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}
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#endif
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static unsigned long conf_value_hash(const CONF_VALUE *v)
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{
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return (lh_strhash(v->section) << 2) ^ lh_strhash(v->name);
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}
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static IMPLEMENT_LHASH_HASH_FN(conf_value, CONF_VALUE)
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static int conf_value_cmp(const CONF_VALUE *a, const CONF_VALUE *b)
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{
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int i;
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if (a->section != b->section) {
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i = strcmp(a->section, b->section);
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if (i)
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return (i);
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}
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if ((a->name != NULL) && (b->name != NULL)) {
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i = strcmp(a->name, b->name);
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return (i);
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} else if (a->name == b->name)
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return (0);
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else
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return ((a->name == NULL) ? -1 : 1);
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}
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static IMPLEMENT_LHASH_COMP_FN(conf_value, CONF_VALUE)
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int _CONF_new_data(CONF *conf)
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{
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if (conf == NULL) {
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return 0;
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}
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if (conf->data == NULL)
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if ((conf->data = lh_CONF_VALUE_new()) == NULL) {
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return 0;
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}
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return 1;
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}
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void _CONF_free_data(CONF *conf)
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{
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if (conf == NULL || conf->data == NULL)
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return;
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lh_CONF_VALUE_down_load(conf->data) = 0; /* evil thing to make * sure the
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* 'OPENSSL_free()' works as *
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* expected */
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lh_CONF_VALUE_doall_arg(conf->data,
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LHASH_DOALL_ARG_FN(value_free_hash),
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LHASH_OF(CONF_VALUE), conf->data);
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/*
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* We now have only 'section' entries in the hash table. Due to problems
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* with
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*/
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lh_CONF_VALUE_doall(conf->data, LHASH_DOALL_FN(value_free_stack));
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lh_CONF_VALUE_free(conf->data);
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}
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static void value_free_hash_doall_arg(CONF_VALUE *a,
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LHASH_OF(CONF_VALUE) *conf)
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{
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if (a->name != NULL)
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(void)lh_CONF_VALUE_delete(conf, a);
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}
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static void value_free_stack_doall(CONF_VALUE *a)
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{
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CONF_VALUE *vv;
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STACK_OF(CONF_VALUE) *sk;
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int i;
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if (a->name != NULL)
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return;
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sk = (STACK_OF(CONF_VALUE) *)a->value;
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for (i = sk_CONF_VALUE_num(sk) - 1; i >= 0; i--) {
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vv = sk_CONF_VALUE_value(sk, i);
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OPENSSL_free(vv->value);
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OPENSSL_free(vv->name);
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OPENSSL_free(vv);
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}
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if (sk != NULL)
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sk_CONF_VALUE_free(sk);
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OPENSSL_free(a->section);
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OPENSSL_free(a);
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}
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/* Up until OpenSSL 0.9.5a, this was new_section */
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CONF_VALUE *_CONF_new_section(CONF *conf, const char *section)
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{
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STACK_OF(CONF_VALUE) *sk = NULL;
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int ok = 0, i;
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CONF_VALUE *v = NULL, *vv;
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if ((sk = sk_CONF_VALUE_new_null()) == NULL)
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goto err;
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if ((v = OPENSSL_malloc(sizeof(CONF_VALUE))) == NULL)
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goto err;
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i = strlen(section) + 1;
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if ((v->section = OPENSSL_malloc(i)) == NULL)
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goto err;
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memcpy(v->section, section, i);
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v->name = NULL;
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v->value = (char *)sk;
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vv = lh_CONF_VALUE_insert(conf->data, v);
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OPENSSL_assert(vv == NULL);
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if (lh_CONF_VALUE_error(conf->data) > 0)
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goto err;
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ok = 1;
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err:
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if (!ok) {
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if (sk != NULL)
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sk_CONF_VALUE_free(sk);
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if (v != NULL)
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OPENSSL_free(v);
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v = NULL;
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}
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return (v);
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}
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IMPLEMENT_STACK_OF(CONF_VALUE)
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