+/* 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.
+ */
+#include "tomcrypt.h"
+
+/**
+ @file ofb_getiv.c
+ OFB implementation, get IV, Tom St Denis
+*/
+
+#ifdef LTC_OFB_MODE
+
+/**
+ Get the current initialization vector
+ @param IV [out] The destination of the initialization vector
+ @param len [in/out] The max size and resulting size of the initialization vector
+ @param ofb The OFB state
+ @return CRYPT_OK if successful
+*/
+int ofb_getiv(unsigned char *IV, unsigned long *len, symmetric_OFB *ofb)
+{
+ LTC_ARGCHK(IV != NULL);
+ LTC_ARGCHK(len != NULL);
+ LTC_ARGCHK(ofb != NULL);
+ if ((unsigned long)ofb->blocklen > *len) {
+ *len = ofb->blocklen;
+ return CRYPT_BUFFER_OVERFLOW;
+ }
+ XMEMCPY(IV, ofb->IV, ofb->blocklen);
+ *len = ofb->blocklen;
+
+ return CRYPT_OK;
+}
+
+#endif
+
+/* ref: $Format:%D$ */
+/* git commit: $Format:%H$ */
+/* commit time: $Format:%ai$ */