95 строки
2.7 KiB
C
95 строки
2.7 KiB
C
/*****************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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* License for the specific language governing rights and limitations
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* under the License.
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*
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* The Original Code is Curl.
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*
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* The Initial Developer of the Original Code is Daniel Stenberg.
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*
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* Portions created by the Initial Developer are Copyright (C) 1998.
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* All Rights Reserved.
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*
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* ------------------------------------------------------------
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* Main author:
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* - Daniel Stenberg <Daniel.Stenberg@haxx.nu>
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*
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* http://curl.haxx.nu
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*
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* $Source$
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* $Revision$
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* $Date$
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* $Author$
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* $State$
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* $Locker$
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*
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* ------------------------------------------------------------
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****************************************************************************/
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#include <stdio.h>
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/* ---- Base64 Encoding --- */
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static char table64[]=
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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void base64Encode(char *intext, char *output)
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{
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unsigned char ibuf[3];
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unsigned char obuf[4];
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int i;
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int inputparts;
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while(*intext) {
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for (i = inputparts = 0; i < 3; i++) {
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if(*intext) {
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inputparts++;
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ibuf[i] = *intext;
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intext++;
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}
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else
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ibuf[i] = 0;
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}
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obuf [0] = (ibuf [0] & 0xFC) >> 2;
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obuf [1] = ((ibuf [0] & 0x03) << 4) | ((ibuf [1] & 0xF0) >> 4);
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obuf [2] = ((ibuf [1] & 0x0F) << 2) | ((ibuf [2] & 0xC0) >> 6);
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obuf [3] = ibuf [2] & 0x3F;
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switch(inputparts) {
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case 1: /* only one byte read */
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sprintf(output, "%c%c==",
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table64[obuf[0]],
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table64[obuf[1]]);
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break;
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case 2: /* two bytes read */
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sprintf(output, "%c%c%c=",
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table64[obuf[0]],
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table64[obuf[1]],
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table64[obuf[2]]);
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break;
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default:
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sprintf(output, "%c%c%c%c",
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table64[obuf[0]],
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table64[obuf[1]],
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table64[obuf[2]],
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table64[obuf[3]] );
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break;
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}
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output += 4;
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}
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*output=0;
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}
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/* ---- End of Base64 Encoding ---- */
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