mirror of https://github.com/BOINC/boinc.git
116 lines
2.9 KiB
C
116 lines
2.9 KiB
C
// Berkeley Open Infrastructure for Network Computing
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// http://boinc.berkeley.edu
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// Copyright (C) 2005 University of California
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//
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// This is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation;
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// either version 2.1 of the License, or (at your option) any later version.
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//
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// This software is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Lesser General Public License for more details.
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//
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// To view the GNU Lesser General Public License visit
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// http://www.gnu.org/copyleft/lesser.html
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// or write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#if defined(_WIN32) && !defined(__STDWX_H__) && !defined(_BOINC_WIN_) && !defined(_AFX_STDAFX_H_)
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#include "boinc_win.h"
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#endif
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#ifndef _WIN32
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#include "config.h"
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#include <cstdio>
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#endif
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#include "md5.h"
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#include "md5_file.h"
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#include "error_numbers.h"
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#ifdef _USING_FCGI_
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#include "fcgi_stdio.h"
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#endif
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int md5_file(const char* path, char* output, double& nbytes) {
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unsigned char buf[4096];
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unsigned char binout[16];
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FILE* f;
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md5_state_t state;
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int i, n;
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nbytes = 0;
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f = fopen(path, "rb");
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if (!f) {
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fprintf(stderr, "md5_file: can't open %s\n", path);
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perror("md5_file");
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return ERR_FOPEN;
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}
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md5_init(&state);
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while (1) {
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n = (int)fread(buf, 1, 4096, f);
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if (n<=0) break;
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nbytes += n;
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md5_append(&state, buf, n);
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}
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md5_finish(&state, binout);
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for (i=0; i<16; i++) {
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sprintf(output+2*i, "%02x", binout[i]);
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}
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output[32] = 0;
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fclose(f);
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return 0;
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}
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int md5_block(const unsigned char* data, int nbytes, char* output) {
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unsigned char binout[16];
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int i;
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md5_state_t state;
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md5_init(&state);
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md5_append(&state, data, nbytes);
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md5_finish(&state, binout);
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for (i=0; i<16; i++) {
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sprintf(output+2*i, "%02x", binout[i]);
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}
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output[32] = 0;
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return 0;
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}
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std::string md5_string(const unsigned char* data, int nbytes) {
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char output[MD5_LEN];
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md5_block(data, nbytes, output);
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return std::string(output);
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}
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int make_random_string(char* out) {
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char buf[256];
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#ifdef __WINDOWS__
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HCRYPTPROV hCryptProv;
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if(! CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, 0)) {
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return -1;
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}
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if(! CryptGenRandom(hCryptProv, (DWORD) 32, (BYTE *) buf)) {
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CryptReleaseContext(hCryptProv, 0);
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return -1;
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}
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CryptReleaseContext(hCryptProv, 0);
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#else
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FILE* f = fopen("/dev/random", "r");
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if (!f) {
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return -1;
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}
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fread(buf, 32, 1, f);
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fclose(f);
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#endif
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md5_block((const unsigned char*)buf, 32, out);
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return 0;
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}
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const char *BOINC_RCSID_5a0dc438fe = "$Id$";
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