From 2267c37ca0cbb4fd7ff188fdae0512773fb28866 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Sun, 11 Sep 2022 10:37:00 -0400
Subject: Remove unused base64 functions.

---
 base64.cpp | 106 ++-----------------------------------------------------------
 1 file changed, 2 insertions(+), 104 deletions(-)

(limited to 'base64.cpp')

diff --git a/base64.cpp b/base64.cpp
index 7de7ade..3dae3a2 100644
--- a/base64.cpp
+++ b/base64.cpp
@@ -1,113 +1,11 @@
+//Chris Xiong 2022
+//License: MPL-2.0
 #include <string>
 #include <cstdint>
 #include <cstdlib>
 
 #include "base64.hpp"
 
-std::string base64_encode(const void *data, size_t len)
-{
-    static const char *b64c = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-    std::string ret;
-    size_t counter = 0;
-    uint8_t rem;
-    const uint8_t *u8d = (uint8_t*) data;
-    for (size_t i = 0; i < len; ++i)
-    {
-        ++counter;
-        if (counter == 3) counter = 0;
-        switch (counter)
-        {
-            case 0:
-                rem |= (u8d[i] >> 6);
-                ret.push_back(b64c[rem]);
-                ret.push_back(b64c[u8d[i] & 0b111111]);
-            break;
-            case 1:
-                ret.push_back(b64c[u8d[i] >> 2]);
-                rem = (u8d[i] & 0b11) << 4;
-            break;
-            case 2:
-                rem |= (u8d[i] >> 4);
-                ret.push_back(b64c[rem]);
-                rem = (u8d[i] & 0b1111) << 2;
-            break;
-        }
-    }
-    if (counter)
-    {
-        ret.push_back(b64c[rem]);
-        for (int i = 0; i < 3 - counter; ++i)
-            ret.push_back('=');
-    }
-    return ret;
-}
-
-void* base64_decode(const std::string& s, size_t *rel)
-{
-    static const uint8_t b64v[] = {
-        65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,
-        65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,
-        65,65,65,65,65,65,65,65,65,65,65,62,65,65,65,63,
-        52,53,54,55,56,57,58,59,60,61,65,65,65,64,65,65,
-        65, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,
-        15,16,17,18,19,20,21,22,23,24,25,65,65,65,65,65,
-        65,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,
-        41,42,43,44,45,46,47,48,49,50,51,65,65,65,65,65
-    };
-    size_t npadd = 0;
-    for (auto ri = s.rbegin(); ri != s.rend(); ++ri)
-        if (*ri == '=')
-            ++npadd;
-        else break;
-    *rel = (s.length() - npadd) / 4 * 3;
-    switch (npadd)
-    {
-        case 0: break;
-        case 1: *rel += 2; break;
-        case 2: *rel += 1; break;
-        default:
-            return nullptr;
-    }
-    uint8_t *ret = (uint8_t*)malloc(*rel);
-    uint8_t rem = 0;
-    uint8_t counter = 0;
-    uint8_t *rp = ret;
-    for (size_t i = 0; i < s.size(); ++i)
-    {
-        ++counter;
-        if (counter == 4) counter = 0;
-        if (s[i] == '=') break;
-        if (s[i] < 0 || b64v[s[i]] > 64)
-            return nullptr;
-        switch (counter)
-        {
-            case 0:
-                rem |= b64v[s[i]];
-                *(rp++) = rem;
-            break;
-            case 1:
-                rem = b64v[s[i]] << 2;
-            break;
-            case 2:
-                rem |= b64v[s[i]] >> 4;
-                *(rp++) = rem;
-                rem = (b64v[s[i]] & 0b1111) << 4;
-            break;
-            case 3:
-                rem |= b64v[s[i]] >> 2;
-                *(rp++) = rem;
-                rem = (b64v[s[i]] & 0b11) << 6;
-            break;
-        }
-    }
-    if (rp - ret != *rel)
-    {
-        free(ret);
-        return nullptr;
-    }
-    return ret;
-}
-
 const char *Base64Encoder::b64c = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
 Base64Encoder::Base64Encoder() : counter(0), rem(0), ret(std::string()) {}
-- 
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