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-rw-r--r--Utilities/cmcurl/base64.c366
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diff --git a/Utilities/cmcurl/base64.c b/Utilities/cmcurl/base64.c
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--- a/Utilities/cmcurl/base64.c
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-/***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2007, 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.
- *
- * $Id$
- ***************************************************************************/
-
-/* Base64 encoding/decoding
- *
- * Test harnesses down the bottom - compile with -DTEST_ENCODE for
- * a program that will read in raw data from stdin and write out
- * a base64-encoded version to stdout, and the length returned by the
- * encoding function to stderr. Compile with -DTEST_DECODE for a program that
- * will go the other way.
- *
- * This code will break if int is smaller than 32 bits
- */
-
-#include "setup.h"
-
-#include <stdlib.h>
-#include <string.h>
-
-#define _MPRINTF_REPLACE /* use our functions only */
-#include <curl/mprintf.h>
-
-#include "urldata.h" /* for the SessionHandle definition */
-#include "easyif.h" /* for Curl_convert_... prototypes */
-#include "base64.h"
-#include "memory.h"
-
-/* include memdebug.h last */
-#include "memdebug.h"
-
-/* ---- Base64 Encoding/Decoding Table --- */
-static const char table64[]=
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-static void decodeQuantum(unsigned char *dest, const char *src)
-{
- unsigned int x = 0;
- int i;
- char *found;
-
- for(i = 0; i < 4; i++) {
- if((found = strchr(table64, src[i])))
- x = (x << 6) + (unsigned int)(found - table64);
- else if(src[i] == '=')
- x = (x << 6);
- }
-
- dest[2] = (unsigned char)(x & 255);
- x >>= 8;
- dest[1] = (unsigned char)(x & 255);
- x >>= 8;
- dest[0] = (unsigned char)(x & 255);
-}
-
-/*
- * Curl_base64_decode()
- *
- * Given a base64 string at src, decode it and return an allocated memory in
- * the *outptr. Returns the length of the decoded data.
- */
-size_t Curl_base64_decode(const char *src, unsigned char **outptr)
-{
- int length = 0;
- int equalsTerm = 0;
- int i;
- int numQuantums;
- unsigned char lastQuantum[3];
- size_t rawlen=0;
- unsigned char *newstr;
-
- *outptr = NULL;
-
- 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 0;
-
- 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 0;
-
- *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((unsigned char *)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 */
- return rawlen;
-}
-
-/*
- * Curl_base64_encode()
- *
- * Returns the length of the newly created base64 string. The third argument
- * is a pointer to an allocated area holding the base64 data. If something
- * went wrong, -1 is returned.
- *
- */
-size_t Curl_base64_encode(struct SessionHandle *data,
- const char *inp, size_t insize, char **outptr)
-{
- unsigned char ibuf[3];
- unsigned char obuf[4];
- int i;
- int inputparts;
- char *output;
- char *base64data;
-#ifdef CURL_DOES_CONVERSIONS
- char *convbuf;
-#endif
-
- char *indata = (char *)inp;
-
- *outptr = NULL; /* set to NULL in case of failure before we reach the end */
-
- if(0 == insize)
- insize = strlen(indata);
-
- base64data = output = (char*)malloc(insize*4/3+4);
- if(NULL == output)
- return 0;
-
-#ifdef CURL_DOES_CONVERSIONS
- /*
- * 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.
- */
- if(data) {
- convbuf = (char*)malloc(insize);
- if(!convbuf) {
- return 0;
- }
- memcpy(convbuf, indata, insize);
- if(CURLE_OK != Curl_convert_to_network(data, convbuf, insize)) {
- free(convbuf);
- return 0;
- }
- indata = convbuf; /* switch to the converted buffer */
- }
-#else
- (void)data;
-#endif
-
- while(insize > 0) {
- for (i = inputparts = 0; i < 3; i++) {
- if(insize > 0) {
- inputparts++;
- ibuf[i] = *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; /* make it return the actual data memory */
-
-#ifdef CURL_DOES_CONVERSIONS
- if(data)
- free(convbuf);
-#endif
- return strlen(base64data); /* return the length of the new data */
-}
-/* ---- End of Base64 Encoding ---- */
-
-/************* TEST HARNESS STUFF ****************/
-
-
-#ifdef TEST_ENCODE
-/* encoding test harness. Read in standard input and write out the length
- * returned by Curl_base64_encode, followed by the base64'd data itself
- */
-#include <stdio.h>
-
-#define TEST_NEED_SUCK
-void *suck(int *);
-
-int main(int argc, char **argv, char **envp)
-{
- char *base64;
- size_t base64Len;
- unsigned char *data;
- int dataLen;
- struct SessionHandle *handle = NULL;
-
-#ifdef CURL_DOES_CONVERSIONS
- /* get a Curl handle so Curl_base64_encode can translate properly */
- handle = curl_easy_init();
- if(handle == NULL) {
- fprintf(stderr, "Error: curl_easy_init failed\n");
- return 0;
- }
-#endif
- data = (unsigned char *)suck(&dataLen);
- base64Len = Curl_base64_encode(handle, data, dataLen, &base64);
-
- fprintf(stderr, "%d\n", base64Len);
- fprintf(stdout, "%s\n", base64);
-
- free(base64); free(data);
-#ifdef CURL_DOES_CONVERSIONS
- curl_easy_cleanup(handle);
-#endif
- return 0;
-}
-#endif
-
-#ifdef TEST_DECODE
-/* decoding test harness. Read in a base64 string from stdin and write out the
- * length returned by Curl_base64_decode, followed by the decoded data itself
- *
- * gcc -DTEST_DECODE base64.c -o base64 mprintf.o memdebug.o
- */
-#include <stdio.h>
-
-#define TEST_NEED_SUCK
-void *suck(int *);
-
-int main(int argc, char **argv, char **envp)
-{
- char *base64;
- int base64Len;
- unsigned char *data;
- int dataLen;
- int i, j;
-#ifdef CURL_DOES_CONVERSIONS
- /* get a Curl handle so main can translate properly */
- struct SessionHandle *handle = curl_easy_init();
- if(handle == NULL) {
- fprintf(stderr, "Error: curl_easy_init failed\n");
- return 0;
- }
-#endif
-
- base64 = (char *)suck(&base64Len);
- dataLen = Curl_base64_decode(base64, &data);
-
- fprintf(stderr, "%d\n", dataLen);
-
- for(i=0; i < dataLen; i+=0x10) {
- printf("0x%02x: ", i);
- for(j=0; j < 0x10; j++)
- if((j+i) < dataLen)
- printf("%02x ", data[i+j]);
- else
- printf(" ");
-
- printf(" | ");
-
- for(j=0; j < 0x10; j++)
- if((j+i) < dataLen) {
-#ifdef CURL_DOES_CONVERSIONS
- if(CURLE_OK !=
- Curl_convert_from_network(handle, &data[i+j], (size_t)1))
- data[i+j] = '.';
-#endif /* CURL_DOES_CONVERSIONS */
- printf("%c", ISGRAPH(data[i+j])?data[i+j]:'.');
- } else
- break;
- puts("");
- }
-
-#ifdef CURL_DOES_CONVERSIONS
- curl_easy_cleanup(handle);
-#endif
- free(base64); free(data);
- return 0;
-}
-#endif
-
-#ifdef TEST_NEED_SUCK
-/* this function 'sucks' in as much as possible from stdin */
-void *suck(int *lenptr)
-{
- int cursize = 8192;
- unsigned char *buf = NULL;
- int lastread;
- int len = 0;
-
- do {
- cursize *= 2;
- buf = (unsigned char *)realloc(buf, cursize);
- memset(buf + len, 0, cursize - len);
- lastread = fread(buf + len, 1, cursize - len, stdin);
- len += lastread;
- } while(!feof(stdin));
-
- lenptr[0] = len;
- return (void *)buf;
-}
-#endif