From fa8b4660e962fae6968e3d11286c0b922453e7bb Mon Sep 17 00:00:00 2001
From: Rob Riggs <rob@pangalactic.org>
Date: Fri, 1 Jan 2021 22:53:29 -0600
Subject: [PATCH] Remove unused base64 encoding code.

---
 Src/main.c     |  1 -
 TNC/base64.cpp | 57 --------------------------------------------------
 TNC/base64.h   | 38 ---------------------------------
 3 files changed, 96 deletions(-)
 delete mode 100644 TNC/base64.cpp
 delete mode 100644 TNC/base64.h

diff --git a/Src/main.c b/Src/main.c
index d35ff85..0493c63 100644
--- a/Src/main.c
+++ b/Src/main.c
@@ -58,7 +58,6 @@
 #include "PortInterface.h"
 #include "LEDIndicator.h"
 #include "bm78.h"
-#include "base64.h"
 #include "KissHardware.h"
 #include "Log.h"
 
diff --git a/TNC/base64.cpp b/TNC/base64.cpp
deleted file mode 100644
index 09f1e74..0000000
--- a/TNC/base64.cpp
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright 2018 Rob Riggs <rob@mobilinkd.com>
-// All rights reserved.
-
-#include "base64.h"
-#include "assert.h"
-
-namespace {
-const char alphabet[] =
-    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-}
-
-uint32_t base64encode(const uint8_t* src, uint32_t src_len, char* dest,
-    uint32_t* dest_len)
-{
-    uint32_t expected = ((src_len * 4) + 2) / 3;
-    uint32_t dpos = 0;
-    uint8_t b1, b2, b3, b4;
-    for (uint32_t i = 0; i < src_len; i += 3)
-    {
-        if (dpos == *dest_len) return expected;
-        b1 = src[i] >> 2;
-        b2 = ((src[i] & 0x3) << 4);
-        dest[dpos++] = alphabet[b1];
-
-        if (dpos == *dest_len) return expected;
-        if (i + 1 == src_len)
-        {
-            dest[dpos++] = alphabet[b2];
-            break;
-        }
-        else
-        {
-            b2 |=  (src[i + 1] >> 4);
-            dest[dpos++] = alphabet[b2];
-            b3 = (src[i + 1] & 0x0F) << 2;
-        }
-
-        if (dpos == *dest_len) return expected;
-        if (i + 2 == src_len)
-        {
-            dest[dpos++] = alphabet[b3];
-            break;
-        }
-        else
-        {
-            b3 |= src[i + 2] >> 6;
-            dest[dpos++] = alphabet[b3];
-            b4 = src[i + 2] & 0x3F;
-        }
-
-        if (dpos == *dest_len) return expected;
-        dest[dpos++] = alphabet[b4];
-    }
-    *dest_len = dpos;
-    assert(*dest_len == expected);
-    return expected;
-}
diff --git a/TNC/base64.h b/TNC/base64.h
deleted file mode 100644
index 9e6649e..0000000
--- a/TNC/base64.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2018 Rob Riggs <rob@mobilinkd.com>
-// All rights reserved.
-
-#ifndef MOBILINKD__TNC__BASE64_H_
-#define MOBILINKD__TNC__BASE64_H_
-
-#include <stdint.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * Base64 encode binary data from src, storing the result in dest.  The
- * input value of dest_len limits the length of the string which will be
- * written to dest.  If this value is not >= 4/3 * src_len, the output
- * string will be truncated.  The amount written will be returned in
- * dest_len (in this case in==out) and the amount that would have been
- * written is returned.
- *
- * If the return value and the value returned in dest_len are different,
- * dest did not contain enough space to fully encode the result.
- *
- * @param src is the binary data to be base64 encoded.
- * @param src_len is the length of the binary data to encode.
- * @param dest is the destination buffer to contain the encoded string.
- * @param[in,out] dest_len on input is the size of the dest buffer and on
- *  output is the number of characters written to dest.
- * @return the length of src fully base64 encoded.
- */
-uint32_t base64encode(const uint8_t* src, uint32_t src_len, char* dest,
-    uint32_t* dest_len);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // MOBILINKD__TNC__BASE64_H_