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/*
* Copyright (c) 2001-2007, Tom St Denis
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER 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.
*/
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
*
* LibTomCrypt is a library that provides various cryptographic
* algorithms in a highly modular and flexible manner.
*
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tomstdenis@gmail.com, http://libtom.org
*/
#include "tomcrypt.h"
/**
@file crypt_unregister_hash.c
Unregister a hash, Tom St Denis
*/
/**
Unregister a hash from the descriptor table
@param hash The hash descriptor to remove
@return CRYPT_OK on success
*/
int unregister_hash(const struct ltc_hash_descriptor *hash)
{
int x;
LTC_ARGCHK(hash != NULL);
/* is it already registered? */
LTC_MUTEX_LOCK(<c_hash_mutex);
for (x = 0; x < TAB_SIZE; x++) {
if (hash_descriptor[x] == hash) {
hash_descriptor[x] = NULL;
LTC_MUTEX_UNLOCK(<c_hash_mutex);
return CRYPT_OK;
}
}
LTC_MUTEX_UNLOCK(<c_hash_mutex);
return CRYPT_ERROR;
}
/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_unregister_hash.c,v $ */
/* $Revision: 1.7 $ */
/* $Date: 2006/12/28 01:27:24 $ */
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