ref: e14d6249749a1101abdad7998e1cd5cdc49e137a
dir: /sys/src/ape/lib/openssl/crypto/conf/conf_api.c/
/* conf_api.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 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 acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS 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 AUTHOR OR 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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* Part of the code in here was originally in conf.c, which is now removed */
#ifndef CONF_DEBUG
# undef NDEBUG /* avoid conflicting definitions */
# define NDEBUG
#endif
#include <assert.h>
#include <string.h>
#include <openssl/conf.h>
#include <openssl/conf_api.h>
#include "e_os.h"
static void value_free_hash(CONF_VALUE *a, LHASH *conf);
static void value_free_stack(CONF_VALUE *a,LHASH *conf);
static IMPLEMENT_LHASH_DOALL_ARG_FN(value_free_hash, CONF_VALUE *, LHASH *)
static IMPLEMENT_LHASH_DOALL_ARG_FN(value_free_stack, CONF_VALUE *, LHASH *)
/* We don't use function pointer casting or wrapper functions - but cast each
* callback parameter inside the callback functions. */
/* static unsigned long hash(CONF_VALUE *v); */
static unsigned long hash(const void *v_void);
/* static int cmp_conf(CONF_VALUE *a,CONF_VALUE *b); */
static int cmp_conf(const void *a_void,const void *b_void);
/* Up until OpenSSL 0.9.5a, this was get_section */
CONF_VALUE *_CONF_get_section(const CONF *conf, const char *section)
{
CONF_VALUE *v,vv;
if ((conf == NULL) || (section == NULL)) return(NULL);
vv.name=NULL;
vv.section=(char *)section;
v=(CONF_VALUE *)lh_retrieve(conf->data,&vv);
return(v);
}
/* Up until OpenSSL 0.9.5a, this was CONF_get_section */
STACK_OF(CONF_VALUE) *_CONF_get_section_values(const CONF *conf,
const char *section)
{
CONF_VALUE *v;
v=_CONF_get_section(conf,section);
if (v != NULL)
return((STACK_OF(CONF_VALUE) *)v->value);
else
return(NULL);
}
int _CONF_add_string(CONF *conf, CONF_VALUE *section, CONF_VALUE *value)
{
CONF_VALUE *v = NULL;
STACK_OF(CONF_VALUE) *ts;
ts = (STACK_OF(CONF_VALUE) *)section->value;
value->section=section->section;
if (!sk_CONF_VALUE_push(ts,value))
{
return 0;
}
v = (CONF_VALUE *)lh_insert(conf->data, value);
if (v != NULL)
{
(void)sk_CONF_VALUE_delete_ptr(ts,v);
OPENSSL_free(v->name);
OPENSSL_free(v->value);
OPENSSL_free(v);
}
return 1;
}
char *_CONF_get_string(const CONF *conf, const char *section, const char *name)
{
CONF_VALUE *v,vv;
char *p;
if (name == NULL) return(NULL);
if (conf != NULL)
{
if (section != NULL)
{
vv.name=(char *)name;
vv.section=(char *)section;
v=(CONF_VALUE *)lh_retrieve(conf->data,&vv);
if (v != NULL) return(v->value);
if (strcmp(section,"ENV") == 0)
{
p=Getenv(name);
if (p != NULL) return(p);
}
}
vv.section="default";
vv.name=(char *)name;
v=(CONF_VALUE *)lh_retrieve(conf->data,&vv);
if (v != NULL)
return(v->value);
else
return(NULL);
}
else
return(Getenv(name));
}
#if 0 /* There's no way to provide error checking with this function, so
force implementors of the higher levels to get a string and read
the number themselves. */
long _CONF_get_number(CONF *conf, char *section, char *name)
{
char *str;
long ret=0;
str=_CONF_get_string(conf,section,name);
if (str == NULL) return(0);
for (;;)
{
if (conf->meth->is_number(conf, *str))
ret=ret*10+conf->meth->to_int(conf, *str);
else
return(ret);
str++;
}
}
#endif
int _CONF_new_data(CONF *conf)
{
if (conf == NULL)
{
return 0;
}
if (conf->data == NULL)
if ((conf->data = lh_new(hash, cmp_conf)) == NULL)
{
return 0;
}
return 1;
}
void _CONF_free_data(CONF *conf)
{
if (conf == NULL || conf->data == NULL) return;
conf->data->down_load=0; /* evil thing to make sure the 'OPENSSL_free()'
* works as expected */
lh_doall_arg(conf->data, LHASH_DOALL_ARG_FN(value_free_hash),
conf->data);
/* We now have only 'section' entries in the hash table.
* Due to problems with */
lh_doall_arg(conf->data, LHASH_DOALL_ARG_FN(value_free_stack),
conf->data);
lh_free(conf->data);
}
static void value_free_hash(CONF_VALUE *a, LHASH *conf)
{
if (a->name != NULL)
{
a=(CONF_VALUE *)lh_delete(conf,a);
}
}
static void value_free_stack(CONF_VALUE *a, LHASH *conf)
{
CONF_VALUE *vv;
STACK *sk;
int i;
if (a->name != NULL) return;
sk=(STACK *)a->value;
for (i=sk_num(sk)-1; i>=0; i--)
{
vv=(CONF_VALUE *)sk_value(sk,i);
OPENSSL_free(vv->value);
OPENSSL_free(vv->name);
OPENSSL_free(vv);
}
if (sk != NULL) sk_free(sk);
OPENSSL_free(a->section);
OPENSSL_free(a);
}
/* static unsigned long hash(CONF_VALUE *v) */
static unsigned long hash(const void *v_void)
{
CONF_VALUE *v = (CONF_VALUE *)v_void;
return((lh_strhash(v->section)<<2)^lh_strhash(v->name));
}
/* static int cmp_conf(CONF_VALUE *a, CONF_VALUE *b) */
static int cmp_conf(const void *a_void,const void *b_void)
{
int i;
CONF_VALUE *a = (CONF_VALUE *)a_void;
CONF_VALUE *b = (CONF_VALUE *)b_void;
if (a->section != b->section)
{
i=strcmp(a->section,b->section);
if (i) return(i);
}
if ((a->name != NULL) && (b->name != NULL))
{
i=strcmp(a->name,b->name);
return(i);
}
else if (a->name == b->name)
return(0);
else
return((a->name == NULL)?-1:1);
}
/* Up until OpenSSL 0.9.5a, this was new_section */
CONF_VALUE *_CONF_new_section(CONF *conf, const char *section)
{
STACK *sk=NULL;
int ok=0,i;
CONF_VALUE *v=NULL,*vv;
if ((sk=sk_new_null()) == NULL)
goto err;
if ((v=(CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE))) == NULL)
goto err;
i=strlen(section)+1;
if ((v->section=(char *)OPENSSL_malloc(i)) == NULL)
goto err;
memcpy(v->section,section,i);
v->name=NULL;
v->value=(char *)sk;
vv=(CONF_VALUE *)lh_insert(conf->data,v);
assert(vv == NULL);
ok=1;
err:
if (!ok)
{
if (sk != NULL) sk_free(sk);
if (v != NULL) OPENSSL_free(v);
v=NULL;
}
return(v);
}
IMPLEMENT_STACK_OF(CONF_VALUE)