/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
#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;
}