Re-import libtomcrypt 1.05 for cleaner propagating.

From crypt-1.05.tar.bz2, SHA1 of 88250202bb51570dc64f7e8f1c943cda9479258f

--HG--
branch : libtomcrypt-orig
extra : convert_revision : 5c0c50e93111636ccf8deb758a689ad713797baf

1 files changed, 36 insertions, 0 deletions

diff --git a/src/misc/crypt/crypt_hash_is_valid.c b/src/misc/crypt/crypt_hash_is_valid.c
new file mode 100644
index 0000000..a8130d4
--- /dev/null
+++ b/src/misc/crypt/crypt_hash_is_valid.c
@@ -0,0 +1,36 @@
+/* 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.org
+ */
+#include "tomcrypt.h"
+
+/**
+  @file crypt_hash_is_valid.c
+  Determine if hash is valid, Tom St Denis
+*/  
+
+/*
+   Test if a hash index is valid
+   @param idx   The index of the hash to search for
+   @return CRYPT_OK if valid
+*/
+int hash_is_valid(int idx)
+{
+   LTC_MUTEX_LOCK(&ltc_hash_mutex);
+   if (idx < 0 || idx >= TAB_SIZE || hash_descriptor[idx].name == NULL) {
+      LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+      return CRYPT_INVALID_HASH;
+   }
+   LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
+   return CRYPT_OK;
+}
+
+/* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_hash_is_valid.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2005/06/19 18:00:28 $ */