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