Replaced system SQLite with SQLCipher to support encrypted database

Sources/DataLiteC/libtomcrypt/misc/error_to_string.c

@@ -0,0 +1,71 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
+
+#include "tomcrypt_private.h"
+
+/**
+  @file error_to_string.c
+  Convert error codes to ASCII strings, Tom St Denis
+*/
+
+static const char * const err_2_str[CRYPT_ERR_NUM] =
+{
+   "CRYPT_OK",
+   "CRYPT_ERROR",
+   "Non-fatal 'no-operation' requested.",
+
+   "Invalid key size.",
+   "Invalid number of rounds for block cipher.",
+   "Algorithm failed test vectors.",
+
+   "Buffer overflow.",
+   "Invalid input packet.",
+
+   "Invalid number of bits for a PRNG.",
+   "Error reading the PRNG.",
+
+   "Invalid cipher specified.",
+   "Invalid hash specified.",
+   "Invalid PRNG specified.",
+
+   "Out of memory.",
+
+   "Invalid PK key or key type specified for function.",
+   "A private PK key is required.",
+
+   "Invalid argument provided.",
+   "File Not Found",
+
+   "Invalid PK type.",
+
+   "An overflow of a value was detected/prevented.",
+
+   "An ASN.1 decoding error occurred.",
+
+   "The input was longer than expected.",
+
+   "Invalid size input for PK parameters.",
+
+   "Invalid size for prime.",
+   "Invalid padding.",
+
+   "Hash applied to too many bits.",
+   "Password context to decrypt key file is missing.",
+   "The PEM header was not recognized",
+};
+
+LTC_STATIC_ASSERT(correct_err_2_str_size, (sizeof(err_2_str)/sizeof(err_2_str[0])) == CRYPT_ERR_NUM)
+
+/**
+   Convert an LTC error code to ASCII
+   @param err    The error code
+   @return A pointer to the ASCII NUL terminated string for the error or "Invalid error code." if the err code was not valid.
+*/
+const char *error_to_string(int err)
+{
+   if (err < 0 || err >= CRYPT_ERR_NUM) {
+      return "Invalid error code.";
+   }
+   return err_2_str[err];
+}
+