boinc/lib/md5_file.C

94 lines
2.3 KiB
C

// The contents of this file are subject to the BOINC Public License
// Version 1.0 (the "License"); you may not use this file except in
// compliance with the License. You may obtain a copy of the License at
// http://boinc.berkeley.edu/license_1.0.txt
//
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
// License for the specific language governing rights and limitations
// under the License.
//
// The Original Code is the Berkeley Open Infrastructure for Network Computing.
//
// The Initial Developer of the Original Code is the SETI@home project.
// Portions created by the SETI@home project are Copyright (C) 2002
// University of California at Berkeley. All Rights Reserved.
//
// Contributor(s):
//
#ifdef _WIN32
#include "boinc_win.h"
#endif
#ifndef _WIN32
#include <cstdio>
#endif
#include "md5.h"
#include "md5_file.h"
#include "error_numbers.h"
#ifdef _USING_FCGI_
#include "fcgi_stdio.h"
#endif
int md5_file(const char* path, char* output, double& nbytes) {
unsigned char buf[4096];
unsigned char binout[16];
FILE* f;
md5_state_t state;
int i, n;
nbytes = 0;
f = fopen(path, "rb");
if (!f) {
fprintf(stderr, "md5_file: can't open %s\n", path);
perror("md5_file");
return ERR_FOPEN;
}
md5_init(&state);
while (1) {
n = fread(buf, 1, 4096, f);
if (n<=0) break;
nbytes += n;
md5_append(&state, buf, n);
}
md5_finish(&state, binout);
for (i=0; i<16; i++) {
sprintf(output+2*i, "%02x", binout[i]);
}
output[32] = 0;
fclose(f);
return 0;
}
int md5_block(const unsigned char* data, int nbytes, char* output) {
unsigned char binout[16];
int i;
md5_state_t state;
md5_init(&state);
md5_append(&state, data, nbytes);
md5_finish(&state, binout);
for (i=0; i<16; i++) {
sprintf(output+2*i, "%02x", binout[i]);
}
output[32] = 0;
return 0;
}
std::string md5_string(const unsigned char* data, int nbytes)
{
char output[32];
md5_block(data, nbytes, output);
return std::string(output);
}
#ifdef __GNUC__
static volatile const char __attribute__((unused)) *BOINCrcsid="$Id$";
#else
static volatile const char *BOINCrcsid="$Id$";
#endif