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-rw-r--r--sway/base64.c221
1 files changed, 0 insertions, 221 deletions
diff --git a/sway/base64.c b/sway/base64.c
deleted file mode 100644
index 0d51b5c7..00000000
--- a/sway/base64.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * Adapted from https://github.com/littlstar/b64.c
- * License under the MIT License:
- * Copyright (c) 2014 Little Star Media, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <ctype.h>
-#include <stdlib.h>
-#include "util.h"
-
-static const char b64_table[] = {
- 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
- 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
- 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
- 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
- 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
- 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
- 'w', 'x', 'y', 'z', '0', '1', '2', '3',
- '4', '5', '6', '7', '8', '9', '+', '/'
-};
-
-char *b64_encode(const char *src, size_t len, size_t *flen) {
- int i = 0;
- int j = 0;
- char *enc = NULL;
- size_t size = len * 4 / 3;
- size_t idx = 0;
- unsigned char buf[4];
- char tmp[3];
-
- // alloc
- enc = (char *) malloc(size + 1);
- if (NULL == enc) { return NULL; }
-
- // parse until end of source
- while (len--) {
- // read up to 3 bytes at a time into `tmp'
- tmp[i++] = *(src++);
-
- // if 3 bytes read then encode into `buf'
- if (3 == i) {
- buf[0] = (tmp[0] & 0xfc) >> 2;
- buf[1] = ((tmp[0] & 0x03) << 4) + ((tmp[1] & 0xf0) >> 4);
- buf[2] = ((tmp[1] & 0x0f) << 2) + ((tmp[2] & 0xc0) >> 6);
- buf[3] = tmp[2] & 0x3f;
-
- // shouldn't really happen
- if (idx + 4 > size) {
- size += 16;
- enc = (char *) realloc(enc, size + 1);
- }
- for (i = 0; i < 4; ++i) {
- enc[idx++] = b64_table[buf[i]];
- }
-
- // reset index
- i = 0;
- }
- }
-
- // remainder
- if (i > 0) {
- // fill `tmp' with `\0' at most 3 times
- for (j = i; j < 3; ++j) {
- tmp[j] = '\0';
- }
-
- // perform same codec as above
- buf[0] = (tmp[0] & 0xfc) >> 2;
- buf[1] = ((tmp[0] & 0x03) << 4) + ((tmp[1] & 0xf0) >> 4);
- buf[2] = ((tmp[1] & 0x0f) << 2) + ((tmp[2] & 0xc0) >> 6);
- buf[3] = tmp[2] & 0x3f;
-
- // perform same write to `enc` with new allocation
- size_t delta = (i > 3 ? 0 : 3 - i) + (j > i + 1 ? 0 : i + 1 - j);
- if (idx + delta > size) {
- size += delta;
- enc = (char *) realloc(enc, size + 1);
- }
- for (j = 0; (j < i + 1); ++j) {
- enc[idx++] = b64_table[buf[j]];
- }
-
- // while there is still a remainder
- // append `=' to `enc'
- while ((i++ < 3)) {
- enc[idx++] = '=';
- }
- }
-
- enc[idx] = '\0';
-
- if (flen)
- *flen = size;
- return enc;
-}
-
-unsigned char *b64_decode(const char *src, size_t len, size_t *decsize) {
- int i = 0;
- int j = 0;
- int l = 0;
- // max size estimate
- size_t size = len * 3 / 4;
- size_t idx = 0;
- unsigned char *dec = NULL;
- unsigned char buf[3];
- unsigned char tmp[4];
-
- // alloc
- dec = (unsigned char *) malloc(size + 1);
- if (NULL == dec) { return NULL; }
-
- // parse until end of source
- while (len--) {
- if (isspace(src[j])) { j++; continue; }
- // break if char is `=' or not base64 char
- if ('=' == src[j]) { break; }
- if (!(isalnum(src[j]) || '+' == src[j] || '/' == src[j])) { break; }
-
- // read up to 4 bytes at a time into `tmp'
- tmp[i++] = src[j++];
-
- // if 4 bytes read then decode into `buf'
- if (4 == i) {
- // translate values in `tmp' from table
- for (i = 0; i < 4; ++i) {
- // find translation char in `b64_table'
- for (l = 0; l < 64; ++l) {
- if (tmp[i] == b64_table[l]) {
- tmp[i] = l;
- break;
- }
- }
- }
-
- // decode
- buf[0] = (tmp[0] << 2) + ((tmp[1] & 0x30) >> 4);
- buf[1] = ((tmp[1] & 0xf) << 4) + ((tmp[2] & 0x3c) >> 2);
- buf[2] = ((tmp[2] & 0x3) << 6) + tmp[3];
-
- // unlikely
- if (idx + 3 > size) {
- size += 16;
- dec = (unsigned char *) realloc(dec, size + 1);
- }
- if (dec != NULL){
- for (i = 0; i < 3; ++i) {
- dec[idx++] = buf[i];
- }
- } else {
- return NULL;
- }
-
- // reset
- i = 0;
- }
- }
-
- // remainder
- if (i > 0) {
- // fill `tmp' with `\0' at most 4 times
- for (j = i; j < 4; ++j) {
- tmp[j] = '\0';
- }
-
- // translate remainder
- for (j = 0; j < 4; ++j) {
- // find translation char in `b64_table'
- for (l = 0; l < 64; ++l) {
- if (tmp[j] == b64_table[l]) {
- tmp[j] = l;
- break;
- }
- }
- }
-
- // decode remainder
- buf[0] = (tmp[0] << 2) + ((tmp[1] & 0x30) >> 4);
- buf[1] = ((tmp[1] & 0xf) << 4) + ((tmp[2] & 0x3c) >> 2);
- buf[2] = ((tmp[2] & 0x3) << 6) + tmp[3];
-
- // write remainer decoded buffer to `dec'
- if (idx + (i - 1) > size) {
- size += 16;
- dec = (unsigned char *) realloc(dec, size + 1);
- }
- if (dec != NULL){
- for (j = 0; (j < i - 1); ++j) {
- dec[idx++] = buf[j];
- }
- } else {
- return NULL;
- }
- }
-
- dec[idx] = '\0';
- // Return back the size of decoded string if demanded.
- if (decsize != NULL) {
- *decsize = size;
- }
-
- return dec;
-}