/* * 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; }