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/*
* Copyright (C) 2007 Nokia Corporation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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 St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Author: Adrian Hunter
*/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <sys/statvfs.h>
int main(int argc, char *argv[])
{
char *dir_name = ".";
uint64_t free_space;
struct statvfs fs_info;
if (argc > 1) {
if (strncmp(argv[1], "--help", 6) == 0 ||
strncmp(argv[1], "-h", 2) == 0) {
printf( "Usage is: "
"free_space [directory]\n"
"\n"
"Display the free space of the file system "
"of the directory given\n"
"or the current directory if no "
"directory is given.\nThe value output is "
"in bytes.\n"
);
return 1;
}
dir_name = argv[1];
}
if (statvfs(dir_name, &fs_info) == -1)
return 1;
free_space = (uint64_t) fs_info.f_bavail * (uint64_t) fs_info.f_frsize;
printf("%llu\n", (unsigned long long) free_space);
return 0;
}
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