diff options
Diffstat (limited to 'df.c')
| -rw-r--r-- | df.c | 158 |
1 files changed, 0 insertions, 158 deletions
@@ -1,158 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * Mini df implementation for busybox - * - * Copyright (C) 1999,2000,2001 by Lineo, inc. - * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> - * based on original code by (I think) Bruce Perens <bruce@pixar.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <mntent.h> -#include <sys/vfs.h> -#include <getopt.h> -#include "busybox.h" - -extern const char mtab_file[]; /* Defined in utility.c */ -#ifdef BB_FEATURE_HUMAN_READABLE -static unsigned long df_disp_hr = KILOBYTE; -#endif - -static int do_df(char *device, const char *mount_point) -{ - struct statfs s; - long blocks_used; - long blocks_percent_used; - - if (statfs(mount_point, &s) != 0) { - perror_msg("%s", mount_point); - return FALSE; - } - - if (s.f_blocks > 0) { - blocks_used = s.f_blocks - s.f_bfree; - if(blocks_used == 0) - blocks_percent_used = 0; - else { - blocks_percent_used = (long) - (blocks_used * 100.0 / (blocks_used + s.f_bavail) + 0.5); - } - if (strcmp(device, "/dev/root") == 0) { - /* Adjusts device to be the real root device, - * or leaves device alone if it can't find it */ - device = find_real_root_device_name(device); - if(device==NULL) - return FALSE; - } -#ifdef BB_FEATURE_HUMAN_READABLE - printf("%-20s %9s ", device, - make_human_readable_str(s.f_blocks, s.f_bsize, df_disp_hr)); - - printf("%9s ", - make_human_readable_str( (s.f_blocks - s.f_bfree), s.f_bsize, df_disp_hr)); - - printf("%9s %3ld%% %s\n", - make_human_readable_str(s.f_bavail, s.f_bsize, df_disp_hr), - blocks_percent_used, mount_point); -#else - printf("%-20s %9ld %9ld %9ld %3ld%% %s\n", - device, - (long) (s.f_blocks * (s.f_bsize / (double)KILOBYTE)), - (long) ((s.f_blocks - s.f_bfree)*(s.f_bsize/(double)KILOBYTE)), - (long) (s.f_bavail * (s.f_bsize / (double)KILOBYTE)), - blocks_percent_used, mount_point); -#endif - } - - return TRUE; -} - -extern int df_main(int argc, char **argv) -{ - int status = EXIT_SUCCESS; - int opt = 0; - int i = 0; - char disp_units_hdr[80] = "1k-blocks"; /* default display is kilobytes */ - - while ((opt = getopt(argc, argv, "k" -#ifdef BB_FEATURE_HUMAN_READABLE - "hm" -#endif -)) > 0) - { - switch (opt) { -#ifdef BB_FEATURE_HUMAN_READABLE - case 'h': - df_disp_hr = 0; - strcpy(disp_units_hdr, " Size"); - break; - case 'm': - df_disp_hr = MEGABYTE; - strcpy(disp_units_hdr, "1M-blocks"); - break; -#endif - case 'k': - /* default display is kilobytes */ - break; - default: - show_usage(); - } - } - - printf("%-20s %-14s %s %s %s %s\n", "Filesystem", disp_units_hdr, - "Used", "Available", "Use%", "Mounted on"); - - if(optind < argc) { - struct mntent *mount_entry; - for(i = optind; i < argc; i++) - { - if ((mount_entry = find_mount_point(argv[i], mtab_file)) == 0) { - error_msg("%s: can't find mount point.", argv[i]); - status = EXIT_FAILURE; - } else if (!do_df(mount_entry->mnt_fsname, mount_entry->mnt_dir)) - status = EXIT_FAILURE; - } - } else { - FILE *mount_table; - struct mntent *mount_entry; - - mount_table = setmntent(mtab_file, "r"); - if (mount_table == 0) { - perror_msg("%s", mtab_file); - return EXIT_FAILURE; - } - - while ((mount_entry = getmntent(mount_table))) { - if (!do_df(mount_entry->mnt_fsname, mount_entry->mnt_dir)) - status = EXIT_FAILURE; - } - endmntent(mount_table); - } - - return status; -} - -/* -Local Variables: -c-file-style: "linux" -c-basic-offset: 4 -tab-width: 4 -End: -*/ |