52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/*
|
|
* s3fs - FUSE-based file system backed by Amazon S3
|
|
*
|
|
* Copyright(C) 2021 Andrew Gaul <andrew@gaul.org>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
// Generate junk data at high speed. An alternative to dd if=/dev/urandom.
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
if (argc != 2) {
|
|
return 1;
|
|
}
|
|
long long count = strtoull(argv[1], NULL, 10);
|
|
char buf[128 * 1024];
|
|
long long i;
|
|
for (i = 0; i < count; i += sizeof(buf)) {
|
|
long long j;
|
|
for (j = 0; j < sizeof(buf) / sizeof(i); ++j) {
|
|
*((long long *)buf + j) = i / sizeof(i) + j;
|
|
}
|
|
fwrite(buf, 1, sizeof(buf) > count - i ? count - i : sizeof(buf), stdout);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* End:
|
|
* vim600: expandtab sw=4 ts=4 fdm=marker
|
|
* vim<600: expandtab sw=4 ts=4
|
|
*/
|