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/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/************************************************************************
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* NCSA HTTPd Server
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* Software Development Group
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* National Center for Supercomputing Applications
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* University of Illinois at Urbana-Champaign
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* 605 E. Springfield, Champaign, IL 61820
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* httpd@ncsa.uiuc.edu
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*
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* Copyright (C) 1995, Board of Trustees of the University of Illinois
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*
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************************************************************************
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*
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* md5.c: NCSA HTTPd code which uses the md5c.c RSA Code
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*
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* Original Code Copyright (C) 1994, Jeff Hostetler, Spyglass, Inc.
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* Portions of Content-MD5 code Copyright (C) 1993, 1994 by Carnegie Mellon
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* University (see Copyright below).
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* Portions of Content-MD5 code Copyright (C) 1991 Bell Communications
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* Research, Inc. (Bellcore) (see Copyright below).
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* Portions extracted from mpack, John G. Myers - jgm+@cmu.edu
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* Content-MD5 Code contributed by Martin Hamilton (martin@net.lut.ac.uk)
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*
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*/
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/* md5.c --Module Interface to MD5. */
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/* Jeff Hostetler, Spyglass, Inc., 1994. */
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#include "ap_config.h"
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#include "apr_portable.h"
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#include "apr_strings.h"
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#include "httpd.h"
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#include "util_md5.h"
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#include "util_ebcdic.h"
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AP_DECLARE(char *) ap_md5_binary(apr_pool_t *p, const unsigned char *buf, int length)
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{
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apr_md5_ctx_t my_md5;
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unsigned char hash[APR_MD5_DIGESTSIZE];
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char result[2 * APR_MD5_DIGESTSIZE + 1];
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/*
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* Take the MD5 hash of the string argument.
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*/
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apr_md5_init(&my_md5);
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#if APR_CHARSET_EBCDIC
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apr_md5_set_xlate(&my_md5, ap_hdrs_to_ascii);
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#endif
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apr_md5_update(&my_md5, buf, (unsigned int)length);
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apr_md5_final(hash, &my_md5);
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ap_bin2hex(hash, APR_MD5_DIGESTSIZE, result);
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return apr_pstrndup(p, result, APR_MD5_DIGESTSIZE*2);
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}
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AP_DECLARE(char *) ap_md5(apr_pool_t *p, const unsigned char *string)
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{
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return ap_md5_binary(p, string, (int) strlen((char *)string));
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}
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/* these portions extracted from mpack, John G. Myers - jgm+@cmu.edu */
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/* (C) Copyright 1993,1994 by Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of Carnegie
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* Mellon University not be used in advertising or publicity
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* pertaining to distribution of the software without specific,
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* written prior permission. Carnegie Mellon University makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied
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* warranty.
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*
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* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
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* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
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* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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/*
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* Copyright (c) 1991 Bell Communications Research, Inc. (Bellcore)
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*
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* Permission to use, copy, modify, and distribute this material
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* for any purpose and without fee is hereby granted, provided
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* that the above copyright notice and this permission notice
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* appear in all copies, and that the name of Bellcore not be
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* used in advertising or publicity pertaining to this
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* material without the specific, prior written permission
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* of an authorized representative of Bellcore. BELLCORE
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* MAKES NO REPRESENTATIONS ABOUT THE ACCURACY OR SUITABILITY
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* OF THIS MATERIAL FOR ANY PURPOSE. IT IS PROVIDED "AS IS",
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* WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES.
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*/
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static char basis_64[] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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AP_DECLARE(char *) ap_md5contextTo64(apr_pool_t *a, apr_md5_ctx_t *context)
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{
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unsigned char digest[18];
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char *encodedDigest;
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int i;
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char *p;
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encodedDigest = (char *) apr_pcalloc(a, 25 * sizeof(char));
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apr_md5_final(digest, context);
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digest[sizeof(digest) - 1] = digest[sizeof(digest) - 2] = 0;
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p = encodedDigest;
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for (i = 0; i < sizeof(digest); i += 3) {
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*p++ = basis_64[digest[i] >> 2];
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*p++ = basis_64[((digest[i] & 0x3) << 4) | ((int) (digest[i + 1] & 0xF0) >> 4)];
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*p++ = basis_64[((digest[i + 1] & 0xF) << 2) | ((int) (digest[i + 2] & 0xC0) >> 6)];
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*p++ = basis_64[digest[i + 2] & 0x3F];
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}
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*p-- = '\0';
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*p-- = '=';
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*p-- = '=';
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return encodedDigest;
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}
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AP_DECLARE(char *) ap_md5digest(apr_pool_t *p, apr_file_t *infile)
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{
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apr_md5_ctx_t context;
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unsigned char buf[4096]; /* keep this a multiple of 64 */
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apr_size_t nbytes;
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apr_off_t offset = 0L;
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apr_md5_init(&context);
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nbytes = sizeof(buf);
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while (apr_file_read(infile, buf, &nbytes) == APR_SUCCESS) {
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apr_md5_update(&context, buf, nbytes);
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nbytes = sizeof(buf);
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}
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apr_file_seek(infile, APR_SET, &offset);
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return ap_md5contextTo64(p, &context);
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}
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