Linux ip-172-26-7-228 5.4.0-1103-aws #111~18.04.1-Ubuntu SMP Tue May 23 20:04:10 UTC 2023 x86_64
Your IP : 3.146.206.87
/*
* s3fs - FUSE-based file system backed by Amazon S3
*
* Copyright(C) 2007 Randy Rizun <rrizun@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <climits>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <string>
#include "s3fs_auth.h"
#include "string_util.h"
using namespace std;
//-------------------------------------------------------------------
// Utility Function
//-------------------------------------------------------------------
string s3fs_get_content_md5(int fd)
{
unsigned char* md5hex;
char* base64;
string Signature;
if(NULL == (md5hex = s3fs_md5hexsum(fd, 0, -1))){
return string("");
}
if(NULL == (base64 = s3fs_base64(md5hex, get_md5_digest_length()))){
return string(""); // ENOMEM
}
delete[] md5hex;
Signature = base64;
delete[] base64;
return Signature;
}
string s3fs_md5sum(int fd, off_t start, ssize_t size)
{
size_t digestlen = get_md5_digest_length();
unsigned char* md5hex;
if(NULL == (md5hex = s3fs_md5hexsum(fd, start, size))){
return string("");
}
std::string md5 = s3fs_hex(md5hex, digestlen);
delete[] md5hex;
return md5;
}
string s3fs_sha256sum(int fd, off_t start, ssize_t size)
{
size_t digestlen = get_sha256_digest_length();
char sha256[2 * digestlen + 1];
unsigned char* sha256hex;
if(NULL == (sha256hex = s3fs_sha256hexsum(fd, start, size))){
return string("");
}
memset(sha256, 0, 2 * digestlen + 1);
for(size_t pos = 0; pos < digestlen; pos++){
snprintf(sha256 + 2 * pos, 3, "%02x", sha256hex[pos]);
}
delete[] sha256hex;
return string(sha256);
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/
|