/*
pGina PAM Server - A PAM-Aware Unix Daemon for pGina
Copyright (C) 2003 Nathan Yocom

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

Email: nate.yocom@xpasystems.com
Web: http://pgina.xpasystems.com
Snail Mail:
  Nathan Yocom 
  9 Evergreen Farms Rd.
  Scarborough, ME 04074
  Phone: 207-450-4948
*/
/*
	$Log: common_ssl.c,v $
	Revision 1.1  2003/08/06 04:58:34  nyocom
	Initial Import
	
	Revision 1.1.1.1  2003/03/22 06:02:20  xpasys
	Imported sources
	
*/

#include "common_ssl.h"
#include <openssl/ssl.h>

static void locking_function(int mode, int n, const char *file, int line)
{
    if(mode & CRYPTO_LOCK)
        MUTEX_LOCK(mutex_buf[n]);
    else
        MUTEX_UNLOCK(mutex_buf[n]);
}

static unsigned long id_function(void)
{
    return ((unsigned long)THREAD_ID);
}

static struct CRYPTO_dynlock_value *dyn_create_function(const char *file, int line)
{
    struct CRYPTO_dynlock_value *value;

    value = (struct CRYPTO_dynlock_value *) malloc(sizeof(struct CRYPTO_dynlock_value));

    if(!value)
        return NULL;

    MUTEX_SETUP(value->mutex);
    return value;
}

static void dyn_lock_function(int mode, struct CRYPTO_dynlock_value *l, const char *file, int line)
{
    if(mode & CRYPTO_LOCK)
        MUTEX_LOCK(l->mutex);
    else
        MUTEX_UNLOCK(l->mutex);
}
static void dyn_destroy_function(struct CRYPTO_dynlock_value *l, const char *file, int line)
{
    MUTEX_CLEANUP(l->mutex);
    free(l);
}


int THREAD_setup(void)
{
    int i;
    mutex_buf = NULL;

    mutex_buf = (MUTEX_TYPE *) malloc(CRYPTO_num_locks() * sizeof(MUTEX_TYPE));
    
    if(!mutex_buf)
        return 0;
    
    for(i=0;i<CRYPTO_num_locks(); i++)
        MUTEX_SETUP(mutex_buf[i]);

    // static locks
    CRYPTO_set_id_callback(id_function);
    CRYPTO_set_locking_callback(locking_function);

    // dyn locks
    CRYPTO_set_dynlock_create_callback(dyn_create_function);
    CRYPTO_set_dynlock_lock_callback(dyn_lock_function);
    CRYPTO_set_dynlock_destroy_callback(dyn_destroy_function);

    return 1;
}

int THREAD_clean(void)
{
    int i;

    if(!mutex_buf)
        return 0;

    CRYPTO_set_id_callback(NULL);
    CRYPTO_set_locking_callback(NULL);

    CRYPTO_set_dynlock_create_callback(NULL);
    CRYPTO_set_dynlock_lock_callback(NULL);
    CRYPTO_set_dynlock_destroy_callback(NULL);

    for(i=0;i<CRYPTO_num_locks(); i++)
        MUTEX_CLEANUP(mutex_buf[i]);

    free(mutex_buf);
    mutex_buf = NULL;

    return 1;
}