ref: c23504631008ce0bfaa5bec48acb2b04f4b49fd9
dir: /sys/src/ape/lib/openssl/crypto/conf/conf_lib.c/
/* conf_lib.c */
/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
* project 2000.
*/
/* ====================================================================
* Copyright (c) 2000 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/conf.h>
#include <openssl/conf_api.h>
#include <openssl/lhash.h>
const char CONF_version[]="CONF" OPENSSL_VERSION_PTEXT;
static CONF_METHOD *default_CONF_method=NULL;
/* Init a 'CONF' structure from an old LHASH */
void CONF_set_nconf(CONF *conf, LHASH *hash)
{
if (default_CONF_method == NULL)
default_CONF_method = NCONF_default();
default_CONF_method->init(conf);
conf->data = hash;
}
/* The following section contains the "CONF classic" functions,
rewritten in terms of the new CONF interface. */
int CONF_set_default_method(CONF_METHOD *meth)
{
default_CONF_method = meth;
return 1;
}
LHASH *CONF_load(LHASH *conf, const char *file, long *eline)
{
LHASH *ltmp;
BIO *in=NULL;
#ifdef OPENSSL_SYS_VMS
in=BIO_new_file(file, "r");
#else
in=BIO_new_file(file, "rb");
#endif
if (in == NULL)
{
CONFerr(CONF_F_CONF_LOAD,ERR_R_SYS_LIB);
return NULL;
}
ltmp = CONF_load_bio(conf, in, eline);
BIO_free(in);
return ltmp;
}
#ifndef OPENSSL_NO_FP_API
LHASH *CONF_load_fp(LHASH *conf, FILE *fp,long *eline)
{
BIO *btmp;
LHASH *ltmp;
if(!(btmp = BIO_new_fp(fp, BIO_NOCLOSE))) {
CONFerr(CONF_F_CONF_LOAD_FP,ERR_R_BUF_LIB);
return NULL;
}
ltmp = CONF_load_bio(conf, btmp, eline);
BIO_free(btmp);
return ltmp;
}
#endif
LHASH *CONF_load_bio(LHASH *conf, BIO *bp,long *eline)
{
CONF ctmp;
int ret;
CONF_set_nconf(&ctmp, conf);
ret = NCONF_load_bio(&ctmp, bp, eline);
if (ret)
return ctmp.data;
return NULL;
}
STACK_OF(CONF_VALUE) *CONF_get_section(LHASH *conf,const char *section)
{
if (conf == NULL)
{
return NULL;
}
else
{
CONF ctmp;
CONF_set_nconf(&ctmp, conf);
return NCONF_get_section(&ctmp, section);
}
}
char *CONF_get_string(LHASH *conf,const char *group,const char *name)
{
if (conf == NULL)
{
return NCONF_get_string(NULL, group, name);
}
else
{
CONF ctmp;
CONF_set_nconf(&ctmp, conf);
return NCONF_get_string(&ctmp, group, name);
}
}
long CONF_get_number(LHASH *conf,const char *group,const char *name)
{
int status;
long result = 0;
if (conf == NULL)
{
status = NCONF_get_number_e(NULL, group, name, &result);
}
else
{
CONF ctmp;
CONF_set_nconf(&ctmp, conf);
status = NCONF_get_number_e(&ctmp, group, name, &result);
}
if (status == 0)
{
/* This function does not believe in errors... */
ERR_clear_error();
}
return result;
}
void CONF_free(LHASH *conf)
{
CONF ctmp;
CONF_set_nconf(&ctmp, conf);
NCONF_free_data(&ctmp);
}
#ifndef OPENSSL_NO_FP_API
int CONF_dump_fp(LHASH *conf, FILE *out)
{
BIO *btmp;
int ret;
if(!(btmp = BIO_new_fp(out, BIO_NOCLOSE))) {
CONFerr(CONF_F_CONF_DUMP_FP,ERR_R_BUF_LIB);
return 0;
}
ret = CONF_dump_bio(conf, btmp);
BIO_free(btmp);
return ret;
}
#endif
int CONF_dump_bio(LHASH *conf, BIO *out)
{
CONF ctmp;
CONF_set_nconf(&ctmp, conf);
return NCONF_dump_bio(&ctmp, out);
}
/* The following section contains the "New CONF" functions. They are
completely centralised around a new CONF structure that may contain
basically anything, but at least a method pointer and a table of data.
These functions are also written in terms of the bridge functions used
by the "CONF classic" functions, for consistency. */
CONF *NCONF_new(CONF_METHOD *meth)
{
CONF *ret;
if (meth == NULL)
meth = NCONF_default();
ret = meth->create(meth);
if (ret == NULL)
{
CONFerr(CONF_F_NCONF_NEW,ERR_R_MALLOC_FAILURE);
return(NULL);
}
return ret;
}
void NCONF_free(CONF *conf)
{
if (conf == NULL)
return;
conf->meth->destroy(conf);
}
void NCONF_free_data(CONF *conf)
{
if (conf == NULL)
return;
conf->meth->destroy_data(conf);
}
int NCONF_load(CONF *conf, const char *file, long *eline)
{
if (conf == NULL)
{
CONFerr(CONF_F_NCONF_LOAD,CONF_R_NO_CONF);
return 0;
}
return conf->meth->load(conf, file, eline);
}
#ifndef OPENSSL_NO_FP_API
int NCONF_load_fp(CONF *conf, FILE *fp,long *eline)
{
BIO *btmp;
int ret;
if(!(btmp = BIO_new_fp(fp, BIO_NOCLOSE)))
{
CONFerr(CONF_F_NCONF_LOAD_FP,ERR_R_BUF_LIB);
return 0;
}
ret = NCONF_load_bio(conf, btmp, eline);
BIO_free(btmp);
return ret;
}
#endif
int NCONF_load_bio(CONF *conf, BIO *bp,long *eline)
{
if (conf == NULL)
{
CONFerr(CONF_F_NCONF_LOAD_BIO,CONF_R_NO_CONF);
return 0;
}
return conf->meth->load_bio(conf, bp, eline);
}
STACK_OF(CONF_VALUE) *NCONF_get_section(const CONF *conf,const char *section)
{
if (conf == NULL)
{
CONFerr(CONF_F_NCONF_GET_SECTION,CONF_R_NO_CONF);
return NULL;
}
if (section == NULL)
{
CONFerr(CONF_F_NCONF_GET_SECTION,CONF_R_NO_SECTION);
return NULL;
}
return _CONF_get_section_values(conf, section);
}
char *NCONF_get_string(const CONF *conf,const char *group,const char *name)
{
char *s = _CONF_get_string(conf, group, name);
/* Since we may get a value from an environment variable even
if conf is NULL, let's check the value first */
if (s) return s;
if (conf == NULL)
{
CONFerr(CONF_F_NCONF_GET_STRING,
CONF_R_NO_CONF_OR_ENVIRONMENT_VARIABLE);
return NULL;
}
CONFerr(CONF_F_NCONF_GET_STRING,
CONF_R_NO_VALUE);
ERR_add_error_data(4,"group=",group," name=",name);
return NULL;
}
int NCONF_get_number_e(const CONF *conf,const char *group,const char *name,
long *result)
{
char *str;
if (result == NULL)
{
CONFerr(CONF_F_NCONF_GET_NUMBER_E,ERR_R_PASSED_NULL_PARAMETER);
return 0;
}
str = NCONF_get_string(conf,group,name);
if (str == NULL)
return 0;
for (*result = 0;conf->meth->is_number(conf, *str);)
{
*result = (*result)*10 + conf->meth->to_int(conf, *str);
str++;
}
return 1;
}
#ifndef OPENSSL_NO_FP_API
int NCONF_dump_fp(const CONF *conf, FILE *out)
{
BIO *btmp;
int ret;
if(!(btmp = BIO_new_fp(out, BIO_NOCLOSE))) {
CONFerr(CONF_F_NCONF_DUMP_FP,ERR_R_BUF_LIB);
return 0;
}
ret = NCONF_dump_bio(conf, btmp);
BIO_free(btmp);
return ret;
}
#endif
int NCONF_dump_bio(const CONF *conf, BIO *out)
{
if (conf == NULL)
{
CONFerr(CONF_F_NCONF_DUMP_BIO,CONF_R_NO_CONF);
return 0;
}
return conf->meth->dump(conf, out);
}
/* This function should be avoided */
#if 0
long NCONF_get_number(CONF *conf,char *group,char *name)
{
int status;
long ret=0;
status = NCONF_get_number_e(conf, group, name, &ret);
if (status == 0)
{
/* This function does not believe in errors... */
ERR_get_error();
}
return ret;
}
#endif