/*
* Mini df implementation for busybox
*
- * Copyright (C) 1999,2000 by Lineo, inc.
+ * 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>.
*
*
*/
-#include "internal.h"
#include <stdio.h>
+#include <stdlib.h>
#include <mntent.h>
-#include <sys/stat.h>
#include <sys/vfs.h>
-
-static const char df_usage[] = "df [filesystem ...]\n"
-#ifndef BB_FEATURE_TRIVIAL_HELP
- "\nPrint the filesystem space used and space available.\n"
-#endif
- ;
+#include <getopt.h>
+#include "busybox.h"
extern const char mtab_file[]; /* Defined in utility.c */
+#ifdef BB_FEATURE_HUMAN_READABLE
+unsigned long disp_hr = KILOBYTE;
+#endif
static int df(char *device, const char *mountPoint)
{
struct statfs s;
long blocks_used;
long blocks_percent_used;
+#ifdef BB_FEATURE_HUMAN_READABLE
+ long divisor, base;
+#endif
if (statfs(mountPoint, &s) != 0) {
- perror(mountPoint);
+ perror_msg("%s", mountPoint);
return FALSE;
}
if (s.f_blocks > 0) {
blocks_used = s.f_blocks - s.f_bfree;
- blocks_percent_used = (long)
- (blocks_used * 100.0 / (blocks_used + s.f_bavail) + 0.5);
+ 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 */
find_real_root_device_name( device);
}
- printf("%-20s %9ld %9ld %9ld %3ld%% %s\n",
- device,
- (long) (s.f_blocks * (s.f_bsize / 1024.0)),
- (long) ((s.f_blocks - s.f_bfree) * (s.f_bsize / 1024.0)),
- (long) (s.f_bavail * (s.f_bsize / 1024.0)),
- blocks_percent_used, mountPoint);
+#ifdef BB_FEATURE_HUMAN_READABLE
+ switch (disp_hr) {
+ case MEGABYTE:
+ divisor = KILOBYTE;
+ base = KILOBYTE;
+ break;
+ case KILOBYTE:
+ divisor = KILOBYTE;
+ base = 1;
+ break;
+ default:
+ divisor = KILOBYTE;
+ base = 0;
+ }
+ printf("%-20s %9s ", device,
+ format((s.f_blocks * (s.f_bsize / divisor)), base));
+ printf("%9s ",
+ format(((s.f_blocks - s.f_bfree) *
+ (s.f_bsize / divisor)), base));
+ printf("%9s %3ld%% %s\n",
+ format((s.f_bavail * (s.f_bsize / divisor)), base),
+ blocks_percent_used, mountPoint);
+#else
+ printf("%-20s %9ld %9ld %9ld %3ld%% %s\n",
+ device,
+ (long) (s.f_blocks * (s.f_bsize / KILOBYTE)),
+ (long) ((s.f_blocks - s.f_bfree) * (s.f_bsize / KILOBYTE)),
+ (long) (s.f_bavail * (s.f_bsize / KILOBYTE)),
+ blocks_percent_used, mountPoint);
+#endif
}
return TRUE;
extern int df_main(int argc, char **argv)
{
+ int status = EXIT_SUCCESS;
+ int opt = 0;
+ int i = 0;
+
+ while ((opt = getopt(argc, argv,
+#ifdef BB_FEATURE_HUMAN_READABLE
+ "hm"
+#endif
+ "k"
+)) > 0)
+ {
+ switch (opt) {
+#ifdef BB_FEATURE_HUMAN_READABLE
+ case 'h': disp_hr = 0; break;
+ case 'm': disp_hr = MEGABYTE; break;
+#endif
+ case 'k': break;
+ default:
+ show_usage();
+ }
+ }
+
printf("%-20s %-14s %s %s %s %s\n", "Filesystem",
- "1k-blocks", "Used", "Available", "Use%", "Mounted on");
+#ifdef BB_FEATURE_HUMAN_READABLE
+ (KILOBYTE == disp_hr) ? "1k-blocks" :
+ (MEGABYTE == disp_hr) ? "1M-blocks" : " Size",
+#else
+ "1k-blocks",
+#endif
+ "Used", "Available", "Use%", "Mounted on");
- if (argc > 1) {
- struct mntent *mountEntry;
- int status;
- if (**(argv + 1) == '-') {
- usage(df_usage);
- }
- while (argc > 1) {
- if ((mountEntry = findMountPoint(argv[1], mtab_file)) == 0) {
- errorMsg("%s: can't find mount point.\n", argv[1]);
- exit(FALSE);
- }
- status = df(mountEntry->mnt_fsname, mountEntry->mnt_dir);
- if (status != 0)
- exit(status);
- argc--;
- argv++;
+ if(optind < argc) {
+ struct mntent *mountEntry;
+ for(i = optind; i < argc; i++)
+ {
+ if ((mountEntry = find_mount_point(argv[i], mtab_file)) == 0) {
+ error_msg("%s: can't find mount point.", argv[i]);
+ status = EXIT_FAILURE;
+ } else if (!df(mountEntry->mnt_fsname, mountEntry->mnt_dir))
+ status = EXIT_FAILURE;
}
- exit(TRUE);
} else {
FILE *mountTable;
struct mntent *mountEntry;
mountTable = setmntent(mtab_file, "r");
if (mountTable == 0) {
- perror(mtab_file);
- exit(FALSE);
+ perror_msg("%s", mtab_file);
+ return EXIT_FAILURE;
}
while ((mountEntry = getmntent(mountTable))) {
- df(mountEntry->mnt_fsname, mountEntry->mnt_dir);
+ if (!df(mountEntry->mnt_fsname, mountEntry->mnt_dir))
+ status = EXIT_FAILURE;
}
endmntent(mountTable);
}
- return(TRUE);
+ return status;
}
/*