view crypt_cipher_is_valid.c @ 162:bc4e3ac2dd5a libtomcrypt

make data pointers volatile so that memory zeroing won't get optimised away
author Matt Johnston <matt@ucc.asn.au>
date Sun, 02 Jan 2005 17:09:05 +0000
parents d7da3b1e1540
children
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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.
 *
 * Tom St Denis, [email protected], http://libtomcrypt.org
 */
#include "mycrypt.h"

int cipher_is_valid(int idx)
{
   if (idx < 0 || idx >= TAB_SIZE || cipher_descriptor[idx].name == NULL) {
      return CRYPT_INVALID_CIPHER;
   }
   return CRYPT_OK;
}