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Diffstat (limited to 'thirdparty/libwebsockets/misc/base64-decode.c')
-rw-r--r--thirdparty/libwebsockets/misc/base64-decode.c242
1 files changed, 0 insertions, 242 deletions
diff --git a/thirdparty/libwebsockets/misc/base64-decode.c b/thirdparty/libwebsockets/misc/base64-decode.c
deleted file mode 100644
index 64b84d78fa..0000000000
--- a/thirdparty/libwebsockets/misc/base64-decode.c
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- * This code originally came from here
- *
- * http://base64.sourceforge.net/b64.c
- *
- * with the following license:
- *
- * LICENCE: Copyright (c) 2001 Bob Trower, Trantor Standard Systems 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.
- *
- * VERSION HISTORY:
- * Bob Trower 08/04/01 -- Create Version 0.00.00B
- *
- * I cleaned it up quite a bit to match the (linux kernel) style of the rest
- * of libwebsockets; this version is under LGPL2.1 + SLE like the rest of lws
- * since he explicitly allows sublicensing, but I give the URL above so you can
- * get the original with Bob's super-liberal terms directly if you prefer.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include "core/private.h"
-
-static const char encode_orig[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
- "abcdefghijklmnopqrstuvwxyz0123456789+/";
-static const char encode_url[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
- "abcdefghijklmnopqrstuvwxyz0123456789-_";
-static const char decode[] = "|$$$}rstuvwxyz{$$$$$$$>?@ABCDEFGHIJKLMNOPQRSTUVW"
- "$$$$$$XYZ[\\]^_`abcdefghijklmnopq";
-
-static int
-_lws_b64_encode_string(const char *encode, const char *in, int in_len,
- char *out, int out_size)
-{
- unsigned char triple[3];
- int i;
- int len;
- int line = 0;
- int done = 0;
-
- while (in_len) {
- len = 0;
- for (i = 0; i < 3; i++) {
- if (in_len) {
- triple[i] = *in++;
- len++;
- in_len--;
- } else
- triple[i] = 0;
- }
-
- if (done + 4 >= out_size)
- return -1;
-
- *out++ = encode[triple[0] >> 2];
- *out++ = encode[((triple[0] & 0x03) << 4) |
- ((triple[1] & 0xf0) >> 4)];
- *out++ = (len > 1 ? encode[((triple[1] & 0x0f) << 2) |
- ((triple[2] & 0xc0) >> 6)] : '=');
- *out++ = (len > 2 ? encode[triple[2] & 0x3f] : '=');
-
- done += 4;
- line += 4;
- }
-
- if (done + 1 >= out_size)
- return -1;
-
- *out++ = '\0';
-
- return done;
-}
-
-LWS_VISIBLE int
-lws_b64_encode_string(const char *in, int in_len, char *out, int out_size)
-{
- return _lws_b64_encode_string(encode_orig, in, in_len, out, out_size);
-}
-
-LWS_VISIBLE int
-lws_b64_encode_string_url(const char *in, int in_len, char *out, int out_size)
-{
- return _lws_b64_encode_string(encode_url, in, in_len, out, out_size);
-}
-
-/*
- * returns length of decoded string in out, or -1 if out was too small
- * according to out_size
- *
- * Only reads up to in_len chars, otherwise if in_len is -1 on entry reads until
- * the first NUL in the input.
- */
-
-static int
-_lws_b64_decode_string(const char *in, int in_len, char *out, int out_size)
-{
- int len, i, c = 0, done = 0;
- unsigned char v, quad[4];
-
- while (in_len && *in) {
-
- len = 0;
- for (i = 0; i < 4 && in_len && *in; i++) {
-
- v = 0;
- c = 0;
- while (in_len && *in && !v) {
- c = v = *in++;
- in_len--;
- /* support the url base64 variant too */
- if (v == '-')
- c = v = '+';
- if (v == '_')
- c = v = '/';
- v = (v < 43 || v > 122) ? 0 : decode[v - 43];
- if (v)
- v = (v == '$') ? 0 : v - 61;
- }
- if (c) {
- len++;
- if (v)
- quad[i] = v - 1;
- } else
- quad[i] = 0;
- }
-
- if (out_size < (done + len - 1))
- /* out buffer is too small */
- return -1;
-
- /*
- * "The '==' sequence indicates that the last group contained
- * only one byte, and '=' indicates that it contained two
- * bytes." (wikipedia)
- */
-
- if ((!in_len || !*in) && c == '=')
- len--;
-
- if (len >= 2)
- *out++ = quad[0] << 2 | quad[1] >> 4;
- if (len >= 3)
- *out++ = quad[1] << 4 | quad[2] >> 2;
- if (len >= 4)
- *out++ = ((quad[2] << 6) & 0xc0) | quad[3];
-
- done += len - 1;
- }
-
- if (done + 1 >= out_size)
- return -1;
-
- *out = '\0';
-
- return done;
-}
-
-LWS_VISIBLE int
-lws_b64_decode_string(const char *in, char *out, int out_size)
-{
- return _lws_b64_decode_string(in, -1, out, out_size);
-}
-
-LWS_VISIBLE int
-lws_b64_decode_string_len(const char *in, int in_len, char *out, int out_size)
-{
- return _lws_b64_decode_string(in, in_len, out, out_size);
-}
-
-#if 0
-int
-lws_b64_selftest(void)
-{
- char buf[64];
- unsigned int n, r = 0;
- unsigned int test;
- /* examples from https://en.wikipedia.org/wiki/Base64 */
- static const char * const plaintext[] = {
- "any carnal pleasure.",
- "any carnal pleasure",
- "any carnal pleasur",
- "any carnal pleasu",
- "any carnal pleas",
- "Admin:kloikloi"
- };
- static const char * const coded[] = {
- "YW55IGNhcm5hbCBwbGVhc3VyZS4=",
- "YW55IGNhcm5hbCBwbGVhc3VyZQ==",
- "YW55IGNhcm5hbCBwbGVhc3Vy",
- "YW55IGNhcm5hbCBwbGVhc3U=",
- "YW55IGNhcm5hbCBwbGVhcw==",
- "QWRtaW46a2xvaWtsb2k="
- };
-
- for (test = 0; test < sizeof plaintext / sizeof(plaintext[0]); test++) {
-
- buf[sizeof(buf) - 1] = '\0';
- n = lws_b64_encode_string(plaintext[test],
- strlen(plaintext[test]), buf, sizeof buf);
- if (n != strlen(coded[test]) || strcmp(buf, coded[test])) {
- lwsl_err("Failed lws_b64 encode selftest "
- "%d result '%s' %d\n", test, buf, n);
- r = -1;
- }
-
- buf[sizeof(buf) - 1] = '\0';
- n = lws_b64_decode_string(coded[test], buf, sizeof buf);
- if (n != strlen(plaintext[test]) ||
- strcmp(buf, plaintext[test])) {
- lwsl_err("Failed lws_b64 decode selftest "
- "%d result '%s' / '%s', %d / %d\n",
- test, buf, plaintext[test], n, strlen(plaintext[test]));
- r = -1;
- }
- }
-
- lwsl_notice("Base 64 selftests passed\n");
-
- return r;
-}
-#endif
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-04 20:20:02 +0000