Add even more of the source
This should be about everything needed to build so far?
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209
CommonUtilitiesLib/base64.c
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209
CommonUtilitiesLib/base64.c
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/*
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* Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* Copyright (c) 1999-2008 Apple Inc. All Rights Reserved.
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*/
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/* ====================================================================
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* Copyright (c) 1995-1999 The Apache Group. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the Apache Group
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* for use in the Apache HTTP server project (http://www.apache.org/)."
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*
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* 4. The names "Apache Server" and "Apache Group" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* apache@apache.org.
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*
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* 5. Products derived from this software may not be called "Apache"
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* nor may "Apache" appear in their names without prior written
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* permission of the Apache Group.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the Apache Group
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* for use in the Apache HTTP server project (http://www.apache.org/)."
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*
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* THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Group and was originally based
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* on public domain software written at the National Center for
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* Supercomputing Applications, University of Illinois, Urbana-Champaign.
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* For more information on the Apache Group and the Apache HTTP server
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* project, please see <http://www.apache.org/>.
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*
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*/
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/* Base64 encoder/decoder. Originally Apache file ap_base64.c
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*/
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#include <string.h>
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#include "base64.h"
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/* aaaack but it's fast and const should make it shared text page. */
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static const unsigned char pr2six[256] =
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{
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/* ASCII table */
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 62, 64, 64, 64, 63,
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52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 64, 64, 64, 64, 64,
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64, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
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15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 64, 64, 64, 64, 64,
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64, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
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41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64
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};
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int Base64decode_len(const char *bufcoded)
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{
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int nbytesdecoded;
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register const unsigned char *bufin;
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register int nprbytes;
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bufin = (const unsigned char *) bufcoded;
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while (pr2six[*(bufin++)] <= 63);
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nprbytes = (bufin - (const unsigned char *) bufcoded) - 1;
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nbytesdecoded = ((nprbytes + 3) / 4) * 3;
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return nbytesdecoded + 1;
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}
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int Base64decode(char *bufplain, const char *bufcoded)
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{
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int nbytesdecoded;
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register const unsigned char *bufin;
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register unsigned char *bufout;
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register int nprbytes;
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bufin = (const unsigned char *) bufcoded;
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while (pr2six[*(bufin++)] <= 63);
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nprbytes = (bufin - (const unsigned char *) bufcoded) - 1;
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nbytesdecoded = ((nprbytes + 3) / 4) * 3;
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bufout = (unsigned char *) bufplain;
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bufin = (const unsigned char *) bufcoded;
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while (nprbytes > 4) {
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*(bufout++) =
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(unsigned char) (pr2six[*bufin] << 2 | pr2six[bufin[1]] >> 4);
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*(bufout++) =
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(unsigned char) (pr2six[bufin[1]] << 4 | pr2six[bufin[2]] >> 2);
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*(bufout++) =
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(unsigned char) (pr2six[bufin[2]] << 6 | pr2six[bufin[3]]);
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bufin += 4;
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nprbytes -= 4;
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}
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/* Note: (nprbytes == 1) would be an error, so just ingore that case */
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if (nprbytes > 1) {
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*(bufout++) =
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(unsigned char) (pr2six[*bufin] << 2 | pr2six[bufin[1]] >> 4);
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}
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if (nprbytes > 2) {
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*(bufout++) =
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(unsigned char) (pr2six[bufin[1]] << 4 | pr2six[bufin[2]] >> 2);
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}
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if (nprbytes > 3) {
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*(bufout++) =
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(unsigned char) (pr2six[bufin[2]] << 6 | pr2six[bufin[3]]);
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}
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*(bufout++) = '\0';
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nbytesdecoded -= (4 - nprbytes) & 3;
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return nbytesdecoded;
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}
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static const char basis_64[] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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int Base64encode_len(int len)
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{
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return ((len + 2) / 3 * 4) + 1;
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}
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int Base64encode(char *encoded, const char *string, int len)
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{
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int i;
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char *p;
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p = encoded;
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for (i = 0; i < len - 2; i += 3) {
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*p++ = basis_64[(string[i] >> 2) & 0x3F];
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*p++ = basis_64[((string[i] & 0x3) << 4) |
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((int) (string[i + 1] & 0xF0) >> 4)];
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*p++ = basis_64[((string[i + 1] & 0xF) << 2) |
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((int) (string[i + 2] & 0xC0) >> 6)];
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*p++ = basis_64[string[i + 2] & 0x3F];
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}
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if (i < len) {
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*p++ = basis_64[(string[i] >> 2) & 0x3F];
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if (i == (len - 1)) {
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*p++ = basis_64[((string[i] & 0x3) << 4)];
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*p++ = '=';
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}
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else {
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*p++ = basis_64[((string[i] & 0x3) << 4) |
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((int) (string[i + 1] & 0xF0) >> 4)];
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*p++ = basis_64[((string[i + 1] & 0xF) << 2)];
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}
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*p++ = '=';
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}
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*p++ = '\0';
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return p - encoded;
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}
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