--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/modes/ctr/ctr_getiv.c	Fri May 06 13:23:02 2005 +0000
@@ -0,0 +1,41 @@
+/* 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 "tomcrypt.h"
+
+/**
+   @file ctr_getiv.c
+   CTR implementation, get IV, Tom St Denis
+*/
+
+#ifdef CTR
+
+/**
+   Get the current initial vector
+   @param IV   [out] The destination of the initial vector
+   @param len  [in/out]  The max size and resulting size of the initial vector
+   @param ctr  The CTR state
+   @return CRYPT_OK if successful
+*/
+int ctr_getiv(unsigned char *IV, unsigned long *len, symmetric_CTR *ctr)
+{
+   LTC_ARGCHK(IV  != NULL);
+   LTC_ARGCHK(len != NULL);
+   LTC_ARGCHK(ctr != NULL);
+   if ((unsigned long)ctr->blocklen > *len) {
+      return CRYPT_BUFFER_OVERFLOW;
+   }
+   XMEMCPY(IV, ctr->ctr, ctr->blocklen);
+   *len = ctr->blocklen;
+
+   return CRYPT_OK;
+}
+
+#endif