Replaced system SQLite with SQLCipher to support encrypted database

Sources/DataLiteC/libtomcrypt/modes/cfb/cfb_getiv.c

@@ -0,0 +1,34 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
+#include "tomcrypt_private.h"
+
+/**
+   @file cfb_getiv.c
+   CFB implementation, get IV, Tom St Denis
+*/
+
+#ifdef LTC_CFB_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 cfb  The CFB state
+   @return CRYPT_OK if successful
+*/
+int cfb_getiv(unsigned char *IV, unsigned long *len, const symmetric_CFB *cfb)
+{
+   LTC_ARGCHK(IV  != NULL);
+   LTC_ARGCHK(len != NULL);
+   LTC_ARGCHK(cfb != NULL);
+   if ((unsigned long)cfb->blocklen > *len) {
+      *len = cfb->blocklen;
+      return CRYPT_BUFFER_OVERFLOW;
+   }
+   XMEMCPY(IV, cfb->pad, cfb->blocklen);
+   *len = cfb->blocklen;
+
+   return CRYPT_OK;
+}
+
+#endif