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crypt_unregister_prng.c
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crypt_unregister_prng.c
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/* 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.
*/
#include "tomcrypt_private.h"
/**
@file crypt_unregister_prng.c
Unregister a PRNG, Tom St Denis
*/
/**
Unregister a PRNG from the descriptor table
@param prng The PRNG descriptor to remove
@return CRYPT_OK on success
*/
int unregister_prng(const struct ltc_prng_descriptor *prng)
{
int x;
LTC_ARGCHK(prng != NULL);
/* is it already registered? */
LTC_MUTEX_LOCK(<c_prng_mutex);
for (x = 0; x < TAB_SIZE; x++) {
if (XMEMCMP(&prng_descriptor[x], prng, sizeof(struct ltc_prng_descriptor)) == 0) {
prng_descriptor[x].name = NULL;
LTC_MUTEX_UNLOCK(<c_prng_mutex);
return CRYPT_OK;
}
}
LTC_MUTEX_UNLOCK(<c_prng_mutex);
return CRYPT_ERROR;
}
/* ref: $Format:%D$ */
/* git commit: $Format:%H$ */
/* commit time: $Format:%ai$ */