* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
* based on original code by (I think) Bruce Perens <bruce@pixar.com>.
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
/* BB_AUDIT SUSv3 _NOT_ compliant -- option -t missing. */
* Implement -P and -B; better coreutils compat; cleanup
*/
+//usage:#define df_trivial_usage
+//usage: "[-Pk"
+//usage: IF_FEATURE_HUMAN_READABLE("mh")
+//usage: IF_FEATURE_DF_FANCY("ai] [-B SIZE")
+//usage: "] [FILESYSTEM]..."
+//usage:#define df_full_usage "\n\n"
+//usage: "Print filesystem usage statistics\n"
+//usage: "\n -P POSIX output format"
+//usage: "\n -k 1024-byte blocks (default)"
+//usage: IF_FEATURE_HUMAN_READABLE(
+//usage: "\n -m 1M-byte blocks"
+//usage: "\n -h Human readable (e.g. 1K 243M 2G)"
+//usage: )
+//usage: IF_FEATURE_DF_FANCY(
+//usage: "\n -a Show all filesystems"
+//usage: "\n -i Inodes"
+//usage: "\n -B SIZE Blocksize"
+//usage: )
+//usage:
+//usage:#define df_example_usage
+//usage: "$ df\n"
+//usage: "Filesystem 1K-blocks Used Available Use% Mounted on\n"
+//usage: "/dev/sda3 8690864 8553540 137324 98% /\n"
+//usage: "/dev/sda1 64216 36364 27852 57% /boot\n"
+//usage: "$ df /dev/sda3\n"
+//usage: "Filesystem 1K-blocks Used Available Use% Mounted on\n"
+//usage: "/dev/sda3 8690864 8553540 137324 98% /\n"
+//usage: "$ POSIXLY_CORRECT=sure df /dev/sda3\n"
+//usage: "Filesystem 512B-blocks Used Available Use% Mounted on\n"
+//usage: "/dev/sda3 17381728 17107080 274648 98% /\n"
+//usage: "$ POSIXLY_CORRECT=yep df -P /dev/sda3\n"
+//usage: "Filesystem 512-blocks Used Available Capacity Mounted on\n"
+//usage: "/dev/sda3 17381728 17107080 274648 98% /\n"
+
#include <mntent.h>
#include <sys/vfs.h>
#include "libbb.h"
+#include "unicode.h"
#if !ENABLE_FEATURE_HUMAN_READABLE
static unsigned long kscale(unsigned long b, unsigned long bs)
#endif
int df_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int df_main(int argc, char **argv)
+int df_main(int argc UNUSED_PARAM, char **argv)
{
unsigned long blocks_used;
unsigned blocks_percent_used;
const char *disp_units_hdr = NULL;
char *chp;
+ init_unicode();
+
#if ENABLE_FEATURE_HUMAN_READABLE && ENABLE_FEATURE_DF_FANCY
opt_complementary = "k-mB:m-Bk:B-km";
#elif ENABLE_FEATURE_HUMAN_READABLE
df_disp_hr = xatoul_range(chp, 1, ULONG_MAX); /* disallow 0 */
/* From the manpage of df from coreutils-6.10:
- Disk space is shown in 1K blocks by default, unless the environment
- variable POSIXLY_CORRECT is set, in which case 512-byte blocks are used.
- */
+ * Disk space is shown in 1K blocks by default, unless the environment
+ * variable POSIXLY_CORRECT is set, in which case 512-byte blocks are used.
+ */
if (getenv("POSIXLY_CORRECT")) /* TODO - a new libbb function? */
df_disp_hr = 512;
if (disp_units_hdr == NULL) {
#if ENABLE_FEATURE_HUMAN_READABLE
disp_units_hdr = xasprintf("%s-blocks",
- make_human_readable_str(df_disp_hr, 0, !!(opt & OPT_POSIX)));
+ /* print df_disp_hr, show no fractionals,
+ * use suffixes if OPT_POSIX is set in opt */
+ make_human_readable_str(df_disp_hr, 0, !!(opt & OPT_POSIX))
+ );
#else
disp_units_hdr = xasprintf("%lu-blocks", df_disp_hr);
#endif
mount_table = NULL;
argv += optind;
- if (optind >= argc) {
+ if (!argv[0]) {
mount_table = setmntent(bb_path_mtab_file, "r");
if (!mount_table)
bb_perror_msg_and_die(bb_path_mtab_file);
mount_point = *argv++;
if (!mount_point)
break;
- mount_entry = find_mount_point(mount_point);
+ mount_entry = find_mount_point(mount_point, 1);
if (!mount_entry) {
bb_error_msg("%s: can't find mount point", mount_point);
set_error:
}
/* GNU coreutils 6.10 skips certain mounts, try to be compatible. */
- if (strcmp(device, "rootfs") == 0)
+ if (ENABLE_FEATURE_SKIP_ROOTFS && strcmp(device, "rootfs") == 0)
continue;
#ifdef WHY_WE_DO_IT_FOR_DEV_ROOT_ONLY
-/* ... and also this is the only user of find_block_device */
if (strcmp(device, "/dev/root") == 0) {
/* Adjusts device to be the real root device,
- * or leaves device alone if it can't find it */
+ * or leaves device alone if it can't find it */
device = find_block_device("/");
if (!device) {
goto set_error;
}
#endif
- if (printf("\n%-20s" + 1, device) > 20)
- printf("\n%-20s", "");
+#if ENABLE_UNICODE_SUPPORT
+ {
+ uni_stat_t uni_stat;
+ char *uni_dev = unicode_conv_to_printable(&uni_stat, device);
+ if (uni_stat.unicode_width > 20 && !(opt & OPT_POSIX)) {
+ printf("%s\n%20s", uni_dev, "");
+ } else {
+ printf("%s%*s", uni_dev, 20 - (int)uni_stat.unicode_width, "");
+ }
+ free(uni_dev);
+ }
+#else
+ if (printf("\n%-20s" + 1, device) > 20 && !(opt & OPT_POSIX))
+ printf("\n%-20s", "");
+#endif
+
#if ENABLE_FEATURE_HUMAN_READABLE
printf(" %9s ",
+ /* f_blocks x f_bsize / df_disp_hr, show one fractional,
+ * use suffixes if df_disp_hr == 0 */
make_human_readable_str(s.f_blocks, s.f_bsize, df_disp_hr));
printf(" %9s " + 1,
+ /* EXPR x f_bsize / df_disp_hr, show one fractional,
+ * use suffixes if df_disp_hr == 0 */
make_human_readable_str((s.f_blocks - s.f_bfree),
s.f_bsize, df_disp_hr));
printf("%9s %3u%% %s\n",
- make_human_readable_str(s.f_bavail, s.f_bsize, df_disp_hr),
- blocks_percent_used, mount_point);
+ /* f_bavail x f_bsize / df_disp_hr, show one fractional,
+ * use suffixes if df_disp_hr == 0 */
+ make_human_readable_str(s.f_bavail, s.f_bsize, df_disp_hr),
+ blocks_percent_used, mount_point);
#else
printf(" %9lu %9lu %9lu %3u%% %s\n",
- kscale(s.f_blocks, s.f_bsize),
- kscale(s.f_blocks - s.f_bfree, s.f_bsize),
- kscale(s.f_bavail, s.f_bsize),
- blocks_percent_used, mount_point);
+ kscale(s.f_blocks, s.f_bsize),
+ kscale(s.f_blocks - s.f_bfree, s.f_bsize),
+ kscale(s.f_bavail, s.f_bsize),
+ blocks_percent_used, mount_point);
#endif
}
}
projects / platform / upstream / busybox.git / blobdiff