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305 lines
9.5 KiB
305 lines
9.5 KiB
/* 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 <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 = 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 (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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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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