aboutsummaryrefslogtreecommitdiffstats
path: root/binding/base64.c
diff options
context:
space:
mode:
Diffstat (limited to 'binding/base64.c')
-rw-r--r--binding/base64.c108
1 files changed, 0 insertions, 108 deletions
diff --git a/binding/base64.c b/binding/base64.c
deleted file mode 100644
index 0841aba..0000000
--- a/binding/base64.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * Copyright (C) 2017 "IoT.bzh"
- * Author: José Bollo <jose.bollo@iot.bzh>
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-
-const char base64_variant_standard[] = "+/=";
-const char base64_variant_url[] = "-_=";
-const char base64_variant_trunc[] = "+/";
-const char base64_variant_url_trunc[] = "-_";
-
-static char eb64(int x, const char *variant)
-{
- if (x < 52)
- return (char)(x + (x < 26 ? 'A' : 'a'-26));
- else
- return x < 62 ? (char)(x + '0' - 52) : variant[x - 62];
-}
-
-char *base64_encode_array_variant(const char * const *args, size_t count, const char *variant)
-{
- const char *v, *s;
- char *buffer, c;
- size_t i, j, n;
- uint16_t x;
-
- /* compute size and allocate */
- i = n = 0;
- while (n < count)
- i += strlen(args[n++]);
- buffer = malloc(5 + ((i / 3) << 2));
- if (!buffer)
- return NULL;
-
- /* encode */
- v = variant ? : base64_variant_standard;
- n = 0;
- j = 0;
- x = 0;
- while (n < count) {
- s = args[n++];
- c = s[i = 0];
- while (c) {
- x = (uint16_t)((uint16_t)(x << 8) | (uint16_t)(uint8_t)c);
- switch (j & 3) {
- case 0:
- buffer[j++] = eb64((x >> 2) & 63, v);
- break;
- case 1:
- buffer[j++] = eb64((x >> 4) & 63, v);
- break;
- case 2:
- buffer[j++] = eb64((x >> 6) & 63, v);
- buffer[j++] = eb64(x & 63, v);
- break;
- }
- c = s[++i];
- }
- }
-
- /* pad */
- if (v[2]) {
- switch (j & 3) {
- case 1:
- buffer[j++] = eb64((x << 4) & 63, v);
- buffer[j++] = v[2];
- buffer[j++] = v[2];
- break;
- case 2:
- buffer[j++] = eb64((x << 2) & 63, v);
- buffer[j++] = v[2];
- break;
- }
- }
-
- /* done */
- buffer[j] = 0;
- return buffer;
-}
-
-char *base64_encode_multi_variant(const char * const *args, const char *variant)
-{
- size_t count;
-
- for (count = 0 ; args[count] ; count++);
- return base64_encode_array_variant(args, count, variant);
-}
-
-char *base64_encode_variant(const char *arg, const char *variant)
-{
- return base64_encode_array_variant(&arg, !!arg, variant);
-}
-