57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
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/*
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* Copyright (C) 2007 Nokia Corporation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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* Author: Adrian Hunter
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <sys/statvfs.h>
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int main(int argc, char *argv[])
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{
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char *dir_name = ".";
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uint64_t free_space;
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struct statvfs fs_info;
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if (argc > 1) {
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if (strncmp(argv[1], "--help", 6) == 0 ||
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strncmp(argv[1], "-h", 2) == 0) {
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printf( "Usage is: "
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"free_space [directory]\n"
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"\n"
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"Display the free space of the file system "
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"of the directory given\n"
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"or the current directory if no "
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"directory is given.\nThe value output is "
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"in bytes.\n"
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);
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return 1;
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}
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dir_name = argv[1];
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}
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if (statvfs(dir_name, &fs_info) == -1)
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return 1;
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free_space = (uint64_t) fs_info.f_bavail * (uint64_t) fs_info.f_frsize;
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printf("%llu\n", (unsigned long long) free_space);
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return 0;
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}
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