Replaced system SQLite with SQLCipher to support encrypted database

Sources/DataLiteC/libtomcrypt/modes/ofb/ofb_getiv.c

@@ -0,0 +1,34 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
+#include "tomcrypt_private.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, const 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