+
−/* 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://libtomcrypt.com
+
− */
+
−#include "tomcrypt.h"
+
−
+
−/**
+
−  @file crypt_prng_is_valid.c
+
−  Determine if PRNG is valid, Tom St Denis
+
−*/
+
−
+
−/*
+
−   Test if a PRNG index is valid
+
−   @param idx   The index of the PRNG to search for
+
−   @return CRYPT_OK if valid
+
−*/
+
−int prng_is_valid(int idx)
+
−{
+
−   LTC_MUTEX_LOCK(&ltc_prng_mutex);
+
−   if (idx < 0 || idx >= TAB_SIZE || prng_descriptor[idx].name == NULL) {
+
−      LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
+
−      return CRYPT_INVALID_PRNG;
+
−   }
+
−   LTC_MUTEX_UNLOCK(&ltc_prng_mutex);
+
−   return CRYPT_OK;
+
−}
+
−
+
−/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_prng_is_valid.c,v $ */
+
−/* $Revision: 1.5 $ */
+
−/* $Date: 2006/03/31 14:15:35 $ */