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Merge pull request #2764 from ianyfan/rm-base64

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Remove obsolete base64.c file
master
emersion 6 years ago committed by GitHub
parent eecebcafc6 e2dc6dfcd8
commit c8d1f376d3
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2 changed files with 0 additions and 225 deletions
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4
include/util.h
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@ -4,7 +4,6 @@
#include <stdint.h>
#include <stdbool.h>
#include <unistd.h>
#include <sys/types.h>
#include <wlr/types/wlr_output_layout.h>
#include <xkbcommon/xkbcommon.h>
@ -78,9 +77,6 @@ bool parse_boolean(const char *boolean, bool current);
*/
char* resolve_path(const char* path);
char *b64_encode(const char* binaryData, size_t len, size_t *flen);
unsigned char *b64_decode(const char *ascii, size_t len, size_t *flen);
bool sway_dir_to_wlr(enum movement_direction dir, enum wlr_direction *out);
#endif

221
sway/base64.c
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@ -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;
}
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