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391
openssl-1.0.2f/crypto/conf/conf_lib.c
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391
openssl-1.0.2f/crypto/conf/conf_lib.c
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/* conf_lib.c */
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/*
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* Written by Richard Levitte (richard@levitte.org) for the OpenSSL project
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* 2000.
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*/
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/* ====================================================================
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* Copyright (c) 2000 The OpenSSL Project. All rights reserved.
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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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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include <openssl/crypto.h>
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#include <openssl/err.h>
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#include <openssl/conf.h>
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#include <openssl/conf_api.h>
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#include <openssl/lhash.h>
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const char CONF_version[] = "CONF" OPENSSL_VERSION_PTEXT;
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static CONF_METHOD *default_CONF_method = NULL;
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/* Init a 'CONF' structure from an old LHASH */
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void CONF_set_nconf(CONF *conf, LHASH_OF(CONF_VALUE) *hash)
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{
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if (default_CONF_method == NULL)
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default_CONF_method = NCONF_default();
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default_CONF_method->init(conf);
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conf->data = hash;
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}
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/*
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* The following section contains the "CONF classic" functions, rewritten in
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* terms of the new CONF interface.
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*/
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int CONF_set_default_method(CONF_METHOD *meth)
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{
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default_CONF_method = meth;
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return 1;
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}
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LHASH_OF(CONF_VALUE) *CONF_load(LHASH_OF(CONF_VALUE) *conf, const char *file,
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long *eline)
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{
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LHASH_OF(CONF_VALUE) *ltmp;
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BIO *in = NULL;
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#ifdef OPENSSL_SYS_VMS
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in = BIO_new_file(file, "r");
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#else
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in = BIO_new_file(file, "rb");
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#endif
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if (in == NULL) {
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CONFerr(CONF_F_CONF_LOAD, ERR_R_SYS_LIB);
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return NULL;
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}
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ltmp = CONF_load_bio(conf, in, eline);
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BIO_free(in);
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return ltmp;
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}
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#ifndef OPENSSL_NO_FP_API
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LHASH_OF(CONF_VALUE) *CONF_load_fp(LHASH_OF(CONF_VALUE) *conf, FILE *fp,
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long *eline)
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{
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BIO *btmp;
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LHASH_OF(CONF_VALUE) *ltmp;
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if (!(btmp = BIO_new_fp(fp, BIO_NOCLOSE))) {
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CONFerr(CONF_F_CONF_LOAD_FP, ERR_R_BUF_LIB);
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return NULL;
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}
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ltmp = CONF_load_bio(conf, btmp, eline);
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BIO_free(btmp);
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return ltmp;
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}
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#endif
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LHASH_OF(CONF_VALUE) *CONF_load_bio(LHASH_OF(CONF_VALUE) *conf, BIO *bp,
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long *eline)
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{
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CONF ctmp;
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int ret;
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CONF_set_nconf(&ctmp, conf);
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ret = NCONF_load_bio(&ctmp, bp, eline);
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if (ret)
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return ctmp.data;
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return NULL;
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}
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STACK_OF(CONF_VALUE) *CONF_get_section(LHASH_OF(CONF_VALUE) *conf,
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const char *section)
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{
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if (conf == NULL) {
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return NULL;
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} else {
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CONF ctmp;
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CONF_set_nconf(&ctmp, conf);
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return NCONF_get_section(&ctmp, section);
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}
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}
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char *CONF_get_string(LHASH_OF(CONF_VALUE) *conf, const char *group,
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const char *name)
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{
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if (conf == NULL) {
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return NCONF_get_string(NULL, group, name);
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} else {
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CONF ctmp;
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CONF_set_nconf(&ctmp, conf);
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return NCONF_get_string(&ctmp, group, name);
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}
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}
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long CONF_get_number(LHASH_OF(CONF_VALUE) *conf, const char *group,
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const char *name)
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{
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int status;
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long result = 0;
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if (conf == NULL) {
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status = NCONF_get_number_e(NULL, group, name, &result);
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} else {
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CONF ctmp;
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CONF_set_nconf(&ctmp, conf);
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status = NCONF_get_number_e(&ctmp, group, name, &result);
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}
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if (status == 0) {
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/* This function does not believe in errors... */
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ERR_clear_error();
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}
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return result;
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}
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void CONF_free(LHASH_OF(CONF_VALUE) *conf)
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{
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CONF ctmp;
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CONF_set_nconf(&ctmp, conf);
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NCONF_free_data(&ctmp);
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}
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#ifndef OPENSSL_NO_FP_API
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int CONF_dump_fp(LHASH_OF(CONF_VALUE) *conf, FILE *out)
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{
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BIO *btmp;
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int ret;
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if (!(btmp = BIO_new_fp(out, BIO_NOCLOSE))) {
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CONFerr(CONF_F_CONF_DUMP_FP, ERR_R_BUF_LIB);
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return 0;
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}
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ret = CONF_dump_bio(conf, btmp);
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BIO_free(btmp);
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return ret;
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}
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#endif
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int CONF_dump_bio(LHASH_OF(CONF_VALUE) *conf, BIO *out)
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{
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CONF ctmp;
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CONF_set_nconf(&ctmp, conf);
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return NCONF_dump_bio(&ctmp, out);
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}
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/*
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* The following section contains the "New CONF" functions. They are
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* completely centralised around a new CONF structure that may contain
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* basically anything, but at least a method pointer and a table of data.
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* These functions are also written in terms of the bridge functions used by
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* the "CONF classic" functions, for consistency.
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*/
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CONF *NCONF_new(CONF_METHOD *meth)
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{
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CONF *ret;
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if (meth == NULL)
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meth = NCONF_default();
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ret = meth->create(meth);
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if (ret == NULL) {
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CONFerr(CONF_F_NCONF_NEW, ERR_R_MALLOC_FAILURE);
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return (NULL);
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}
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return ret;
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}
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void NCONF_free(CONF *conf)
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{
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if (conf == NULL)
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return;
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conf->meth->destroy(conf);
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}
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void NCONF_free_data(CONF *conf)
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{
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if (conf == NULL)
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return;
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conf->meth->destroy_data(conf);
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}
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int NCONF_load(CONF *conf, const char *file, long *eline)
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{
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if (conf == NULL) {
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CONFerr(CONF_F_NCONF_LOAD, CONF_R_NO_CONF);
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return 0;
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}
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return conf->meth->load(conf, file, eline);
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}
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#ifndef OPENSSL_NO_FP_API
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int NCONF_load_fp(CONF *conf, FILE *fp, long *eline)
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{
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BIO *btmp;
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int ret;
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if (!(btmp = BIO_new_fp(fp, BIO_NOCLOSE))) {
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CONFerr(CONF_F_NCONF_LOAD_FP, ERR_R_BUF_LIB);
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return 0;
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}
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ret = NCONF_load_bio(conf, btmp, eline);
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BIO_free(btmp);
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return ret;
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}
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#endif
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int NCONF_load_bio(CONF *conf, BIO *bp, long *eline)
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{
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if (conf == NULL) {
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CONFerr(CONF_F_NCONF_LOAD_BIO, CONF_R_NO_CONF);
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return 0;
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}
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return conf->meth->load_bio(conf, bp, eline);
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}
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STACK_OF(CONF_VALUE) *NCONF_get_section(const CONF *conf, const char *section)
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{
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if (conf == NULL) {
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CONFerr(CONF_F_NCONF_GET_SECTION, CONF_R_NO_CONF);
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return NULL;
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}
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if (section == NULL) {
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CONFerr(CONF_F_NCONF_GET_SECTION, CONF_R_NO_SECTION);
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return NULL;
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}
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return _CONF_get_section_values(conf, section);
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}
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char *NCONF_get_string(const CONF *conf, const char *group, const char *name)
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{
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char *s = _CONF_get_string(conf, group, name);
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/*
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* Since we may get a value from an environment variable even if conf is
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* NULL, let's check the value first
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*/
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if (s)
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return s;
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if (conf == NULL) {
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CONFerr(CONF_F_NCONF_GET_STRING,
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CONF_R_NO_CONF_OR_ENVIRONMENT_VARIABLE);
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return NULL;
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}
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CONFerr(CONF_F_NCONF_GET_STRING, CONF_R_NO_VALUE);
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ERR_add_error_data(4, "group=", group, " name=", name);
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return NULL;
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}
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int NCONF_get_number_e(const CONF *conf, const char *group, const char *name,
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long *result)
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{
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char *str;
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if (result == NULL) {
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CONFerr(CONF_F_NCONF_GET_NUMBER_E, ERR_R_PASSED_NULL_PARAMETER);
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return 0;
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}
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str = NCONF_get_string(conf, group, name);
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if (str == NULL)
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return 0;
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for (*result = 0; conf->meth->is_number(conf, *str);) {
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*result = (*result) * 10 + conf->meth->to_int(conf, *str);
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str++;
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}
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return 1;
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}
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#ifndef OPENSSL_NO_FP_API
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int NCONF_dump_fp(const CONF *conf, FILE *out)
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{
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BIO *btmp;
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int ret;
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if (!(btmp = BIO_new_fp(out, BIO_NOCLOSE))) {
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CONFerr(CONF_F_NCONF_DUMP_FP, ERR_R_BUF_LIB);
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return 0;
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}
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ret = NCONF_dump_bio(conf, btmp);
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BIO_free(btmp);
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return ret;
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}
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#endif
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int NCONF_dump_bio(const CONF *conf, BIO *out)
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{
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if (conf == NULL) {
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CONFerr(CONF_F_NCONF_DUMP_BIO, CONF_R_NO_CONF);
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return 0;
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}
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return conf->meth->dump(conf, out);
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}
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/* This function should be avoided */
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#if 0
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long NCONF_get_number(CONF *conf, char *group, char *name)
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{
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int status;
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long ret = 0;
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status = NCONF_get_number_e(conf, group, name, &ret);
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if (status == 0) {
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/* This function does not believe in errors... */
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ERR_get_error();
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}
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return ret;
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}
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#endif
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