summaryrefslogtreecommitdiff
path: root/lib/base64.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/base64.c')
-rw-r--r--lib/base64.c248
1 files changed, 0 insertions, 248 deletions
diff --git a/lib/base64.c b/lib/base64.c
deleted file mode 100644
index 45c7a95bc..000000000
--- a/lib/base64.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
- *
- * This software is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at http://curl.haxx.se/docs/copyright.html.
- *
- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- * copies of the Software, and permit persons to whom the Software is
- * furnished to do so, under the terms of the COPYING file.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ***************************************************************************/
-
-/* Base64 encoding/decoding */
-
-#include "curl_setup.h"
-
-#define _MPRINTF_REPLACE /* use our functions only */
-#include <curl/mprintf.h>
-
-#include "curl_urldata.h" /* for the SessionHandle definition */
-#include "curl_warnless.h"
-#include "curl_base64.h"
-#include "curl_memory.h"
-#include "curl_non_ascii.h"
-
-/* include curl_memdebug.h last */
-#include "curl_memdebug.h"
-
-/* ---- Base64 Encoding/Decoding Table --- */
-static const char table64[]=
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-static void decodeQuantum(unsigned char *dest, const char *src)
-{
- const char *s, *p;
- unsigned long i, v, x = 0;
-
- for(i = 0, s = src; i < 4; i++, s++) {
- v = 0;
- p = table64;
- while(*p && (*p != *s)) {
- v++;
- p++;
- }
- if(*p == *s)
- x = (x << 6) + v;
- else if(*s == '=')
- x = (x << 6);
- }
-
- dest[2] = curlx_ultouc(x & 0xFFUL);
- x >>= 8;
- dest[1] = curlx_ultouc(x & 0xFFUL);
- x >>= 8;
- dest[0] = curlx_ultouc(x & 0xFFUL);
-}
-
-/*
- * Curl_base64_decode()
- *
- * Given a base64 NUL-terminated string at src, decode it and return a
- * pointer in *outptr to a newly allocated memory area holding decoded
- * data. Size of decoded data is returned in variable pointed by outlen.
- *
- * Returns CURLE_OK on success, otherwise specific error code. Function
- * output shall not be considered valid unless CURLE_OK is returned.
- *
- * When decoded data length is 0, returns NULL in *outptr.
- *
- * @unittest: 1302
- */
-CURLcode Curl_base64_decode(const char *src,
- unsigned char **outptr, size_t *outlen)
-{
- size_t length = 0;
- size_t equalsTerm = 0;
- size_t i;
- size_t numQuantums;
- unsigned char lastQuantum[3];
- size_t rawlen = 0;
- unsigned char *newstr;
-
- *outptr = NULL;
- *outlen = 0;
-
- while((src[length] != '=') && src[length])
- length++;
- /* A maximum of two = padding characters is allowed */
- if(src[length] == '=') {
- equalsTerm++;
- if(src[length+equalsTerm] == '=')
- equalsTerm++;
- }
- numQuantums = (length + equalsTerm) / 4;
-
- /* Don't allocate a buffer if the decoded length is 0 */
- if(numQuantums == 0)
- return CURLE_OK;
-
- rawlen = (numQuantums * 3) - equalsTerm;
-
- /* The buffer must be large enough to make room for the last quantum
- (which may be partially thrown out) and the zero terminator. */
- newstr = malloc(rawlen+4);
- if(!newstr)
- return CURLE_OUT_OF_MEMORY;
-
- *outptr = newstr;
-
- /* Decode all but the last quantum (which may not decode to a
- multiple of 3 bytes) */
- for(i = 0; i < numQuantums - 1; i++) {
- decodeQuantum(newstr, src);
- newstr += 3; src += 4;
- }
-
- /* This final decode may actually read slightly past the end of the buffer
- if the input string is missing pad bytes. This will almost always be
- harmless. */
- decodeQuantum(lastQuantum, src);
- for(i = 0; i < 3 - equalsTerm; i++)
- newstr[i] = lastQuantum[i];
-
- newstr[i] = '\0'; /* zero terminate */
-
- *outlen = rawlen; /* return size of decoded data */
-
- return CURLE_OK;
-}
-
-/*
- * Curl_base64_encode()
- *
- * Given a pointer to an input buffer and an input size, encode it and
- * return a pointer in *outptr to a newly allocated memory area holding
- * encoded data. Size of encoded data is returned in variable pointed by
- * outlen.
- *
- * Input length of 0 indicates input buffer holds a NUL-terminated string.
- *
- * Returns CURLE_OK on success, otherwise specific error code. Function
- * output shall not be considered valid unless CURLE_OK is returned.
- *
- * When encoded data length is 0, returns NULL in *outptr.
- *
- * @unittest: 1302
- */
-CURLcode Curl_base64_encode(struct SessionHandle *data,
- const char *inputbuff, size_t insize,
- char **outptr, size_t *outlen)
-{
- CURLcode error;
- unsigned char ibuf[3];
- unsigned char obuf[4];
- int i;
- int inputparts;
- char *output;
- char *base64data;
- char *convbuf = NULL;
-
- const char *indata = inputbuff;
-
- *outptr = NULL;
- *outlen = 0;
-
- if(0 == insize)
- insize = strlen(indata);
-
- base64data = output = malloc(insize*4/3+4);
- if(NULL == output)
- return CURLE_OUT_OF_MEMORY;
-
- /*
- * The base64 data needs to be created using the network encoding
- * not the host encoding. And we can't change the actual input
- * so we copy it to a buffer, translate it, and use that instead.
- */
- error = Curl_convert_clone(data, indata, insize, &convbuf);
- if(error) {
- free(output);
- return error;
- }
-
- if(convbuf)
- indata = (char *)convbuf;
-
- while(insize > 0) {
- for(i = inputparts = 0; i < 3; i++) {
- if(insize > 0) {
- inputparts++;
- ibuf[i] = (unsigned char) *indata;
- indata++;
- insize--;
- }
- else
- ibuf[i] = 0;
- }
-
- obuf[0] = (unsigned char) ((ibuf[0] & 0xFC) >> 2);
- obuf[1] = (unsigned char) (((ibuf[0] & 0x03) << 4) | \
- ((ibuf[1] & 0xF0) >> 4));
- obuf[2] = (unsigned char) (((ibuf[1] & 0x0F) << 2) | \
- ((ibuf[2] & 0xC0) >> 6));
- obuf[3] = (unsigned char) (ibuf[2] & 0x3F);
-
- switch(inputparts) {
- case 1: /* only one byte read */
- snprintf(output, 5, "%c%c==",
- table64[obuf[0]],
- table64[obuf[1]]);
- break;
- case 2: /* two bytes read */
- snprintf(output, 5, "%c%c%c=",
- table64[obuf[0]],
- table64[obuf[1]],
- table64[obuf[2]]);
- break;
- default:
- snprintf(output, 5, "%c%c%c%c",
- table64[obuf[0]],
- table64[obuf[1]],
- table64[obuf[2]],
- table64[obuf[3]] );
- break;
- }
- output += 4;
- }
- *output = '\0';
- *outptr = base64data; /* return pointer to new data, allocated memory */
-
- if(convbuf)
- free(convbuf);
-
- *outlen = strlen(base64data); /* return the length of the new data */
-
- return CURLE_OK;
-}
-/* ---- End of Base64 Encoding ---- */
View Lorry Controller Status