char *xmalloc ();
char *xstrdup ();
-static void add_excluded_fs_type __P ((char *fstype));
-static void add_fs_type __P ((char *fstype));
-static void print_header __P ((void));
-static void show_entry __P ((char *path, struct stat *statp));
-static void show_all_entries __P ((void));
-static void show_dev __P ((char *disk, char *mount_point, char *fstype));
-static void show_disk __P ((char *disk));
-static void show_point __P ((char *point, struct stat *statp));
-static void usage __P ((int status));
-
/* The maximum length of a human-readable string. Be pessimistic
and assume `int' is 64-bits wide. Converting 2^63 - 1 gives the
14-character string, 8796093022208G. The number being converted
{NULL, 0, NULL, 0}
};
-int
-main (int argc, char **argv)
-{
- int i;
- struct stat *stats;
-
- program_name = argv[0];
- setlocale (LC_ALL, "");
- bindtextdomain (PACKAGE, LOCALEDIR);
- textdomain (PACKAGE);
-
- fs_select_list = NULL;
- fs_exclude_list = NULL;
- inode_format = 0;
- show_all_fs = 0;
- show_listed_fs = 0;
-
- if (getenv ("POSIXLY_CORRECT"))
- kilobyte_blocks = 0;
- else
- {
- char *bs;
- kilobyte_blocks = 1;
- if ((bs = getenv ("BLOCKSIZE"))
- && strncmp (bs, "HUMAN", sizeof ("HUMAN") - 1) == 0)
- human_blocks = 1;
- }
-
- print_type = 0;
- posix_format = 0;
- exit_status = 0;
-
- while ((i = getopt_long (argc, argv, "aihkmPTt:vx:", long_options, NULL))
- != EOF)
- {
- switch (i)
- {
- case 0: /* Long option. */
- break;
- case 'a':
- show_all_fs = 1;
- break;
- case 'i':
- inode_format = 1;
- break;
- case 'h':
- human_blocks = 1;
- kilobyte_blocks = 1;
- megabyte_blocks = 0;
- break;
- case 'k':
- human_blocks = 0;
- kilobyte_blocks = 1;
- megabyte_blocks = 0;
- break;
- case 'm':
- human_blocks = 0;
- kilobyte_blocks = 0;
- megabyte_blocks = 1;
- break;
- case 'T':
- print_type = 1;
- break;
- case 'P':
- posix_format = 1;
- break;
- case 129:
- require_sync = 1;
- break;
- case 130:
- require_sync = 0;
- break;
- case 't':
- add_fs_type (optarg);
- break;
- case 'v': /* For SysV compatibility. */
- /* ignore */
- break;
- case 'x':
- add_excluded_fs_type (optarg);
- break;
- default:
- usage (1);
- }
- }
-
- if (show_version)
- {
- printf ("df - %s\n", PACKAGE_VERSION);
- exit (0);
- }
-
- if (show_help)
- usage (0);
-
- if (posix_format && megabyte_blocks)
- error (1, 0, _("the option for counting 1MB blocks may not be used\n\
-with the portable output format"));
-
- if (posix_format && human_blocks)
- error (1, 0,
- _("the option for printing with adaptive units may not be used\n\
-with the portable output format"));
-
- /* Fail if the same file system type was both selected and excluded. */
- {
- int match = 0;
- struct fs_type_list *i;
- for (i = fs_select_list; i; i = i->fs_next)
- {
- struct fs_type_list *j;
- for (j = fs_exclude_list; j; j = j->fs_next)
- {
- if (strcmp (i->fs_name, j->fs_name) == 0)
- {
- error (0, 0,
- _("file system type `%s' both selected and excluded"),
- i->fs_name);
- match = 1;
- break;
- }
- }
- }
- if (match)
- exit (1);
- }
-
- if (optind == argc)
- {
-#ifdef lint
- /* Suppress `used before initialized' warning. */
- stats = NULL;
-#endif
- }
- else
- {
- /* stat all the given entries to make sure they get automounted,
- if necessary, before reading the filesystem table. */
- stats = (struct stat *)
- xmalloc ((argc - optind) * sizeof (struct stat));
- for (i = optind; i < argc; ++i)
- if (stat (argv[i], &stats[i - optind]))
- {
- error (0, errno, "%s", argv[i]);
- exit_status = 1;
- argv[i] = NULL;
- }
- }
-
- mount_list =
- read_filesystem_list ((fs_select_list != NULL
- || fs_exclude_list != NULL
- || print_type),
- show_all_fs);
-
- if (mount_list == NULL)
- error (1, errno, _("cannot read table of mounted filesystems"));
-
- print_header ();
- if (require_sync)
- sync ();
-
- if (optind == argc)
- show_all_entries ();
- else
- {
- /* Display explicitly requested empty filesystems. */
- show_listed_fs = 1;
-
- for (i = optind; i < argc; ++i)
- if (argv[i])
- show_entry (argv[i], &stats[i - optind]);
- }
-
- exit (exit_status);
-}
-
static void
print_header (void)
{
printf (" Mounted on\n");
}
-/* Show all mounted filesystems, except perhaps those that are of
- an unselected type or are empty. */
-
-static void
-show_all_entries (void)
-{
- struct mount_entry *me;
-
- for (me = mount_list; me; me = me->me_next)
- show_dev (me->me_devname, me->me_mountdir, me->me_type);
-}
-
-/* Determine what kind of node PATH is and show the disk usage
- for it. STATP is the results of `stat' on PATH. */
-
-static void
-show_entry (char *path, struct stat *statp)
-{
- if (S_ISBLK (statp->st_mode) || S_ISCHR (statp->st_mode))
- show_disk (path);
- else
- show_point (path, statp);
-}
-
-/* Identify the directory, if any, that device
- DISK is mounted on, and show its disk usage. */
-
-static void
-show_disk (char *disk)
-{
- struct mount_entry *me;
-
- for (me = mount_list; me; me = me->me_next)
- if (!strcmp (disk, me->me_devname))
- {
- show_dev (me->me_devname, me->me_mountdir, me->me_type);
- return;
- }
- /* No filesystem is mounted on DISK. */
- show_dev (disk, (char *) NULL, (char *) NULL);
-}
-
-/* Figure out which device file or directory POINT is mounted on
- and show its disk usage.
- STATP is the results of `stat' on POINT. */
-
-static void
-show_point (char *point, struct stat *statp)
-{
- struct stat disk_stats;
- struct mount_entry *me;
-
- for (me = mount_list; me; me = me->me_next)
- {
- if (me->me_dev == (dev_t) -1)
- {
- if (stat (me->me_mountdir, &disk_stats) == 0)
- me->me_dev = disk_stats.st_dev;
- else
- {
- error (0, errno, "%s", me->me_mountdir);
- exit_status = 1;
- /* So we won't try and fail repeatedly. */
- me->me_dev = (dev_t) -2;
- }
- }
-
- if (statp->st_dev == me->me_dev)
- {
- /* Skip bogus mtab entries. */
- if (stat (me->me_mountdir, &disk_stats) != 0 ||
- disk_stats.st_dev != me->me_dev)
- continue;
- show_dev (me->me_devname, me->me_mountdir, me->me_type);
- return;
- }
- }
- error (0, 0, _("cannot find mount point for %s"), point);
- exit_status = 1;
-}
-
/* Convert N_1K_BYTE_BLOCKS to a more readable string than %d would.
Most people visually process strings of 3-4 digits effectively,
but longer strings of digits are more prone to misinterpretation.
If FSTYPE is non-NULL, it is the type of the filesystem on DISK. */
static void
-show_dev (char *disk, char *mount_point, char *fstype)
+show_dev (const char *disk, const char *mount_point, const char *fstype)
{
struct fs_usage fsu;
long blocks_used;
long blocks_percent_used;
long inodes_used;
long inodes_percent_used;
- char *stat_file;
+ const char *stat_file;
if (!selected_fstype (fstype) || excluded_fstype (fstype))
return;
putchar ('\n');
}
+/* Identify the directory, if any, that device
+ DISK is mounted on, and show its disk usage. */
+
+static void
+show_disk (const char *disk)
+{
+ struct mount_entry *me;
+
+ for (me = mount_list; me; me = me->me_next)
+ if (!strcmp (disk, me->me_devname))
+ {
+ show_dev (me->me_devname, me->me_mountdir, me->me_type);
+ return;
+ }
+ /* No filesystem is mounted on DISK. */
+ show_dev (disk, (char *) NULL, (char *) NULL);
+}
+
+/* Figure out which device file or directory POINT is mounted on
+ and show its disk usage.
+ STATP is the results of `stat' on POINT. */
+
+static void
+show_point (const char *point, const struct stat *statp)
+{
+ struct stat disk_stats;
+ struct mount_entry *me;
+
+ for (me = mount_list; me; me = me->me_next)
+ {
+ if (me->me_dev == (dev_t) -1)
+ {
+ if (stat (me->me_mountdir, &disk_stats) == 0)
+ me->me_dev = disk_stats.st_dev;
+ else
+ {
+ error (0, errno, "%s", me->me_mountdir);
+ exit_status = 1;
+ /* So we won't try and fail repeatedly. */
+ me->me_dev = (dev_t) -2;
+ }
+ }
+
+ if (statp->st_dev == me->me_dev)
+ {
+ /* Skip bogus mtab entries. */
+ if (stat (me->me_mountdir, &disk_stats) != 0 ||
+ disk_stats.st_dev != me->me_dev)
+ continue;
+ show_dev (me->me_devname, me->me_mountdir, me->me_type);
+ return;
+ }
+ }
+ error (0, 0, _("cannot find mount point for %s"), point);
+ exit_status = 1;
+}
+
+/* Determine what kind of node PATH is and show the disk usage
+ for it. STATP is the results of `stat' on PATH. */
+
+static void
+show_entry (const char *path, const struct stat *statp)
+{
+ if (S_ISBLK (statp->st_mode) || S_ISCHR (statp->st_mode))
+ show_disk (path);
+ else
+ show_point (path, statp);
+}
+
+/* Show all mounted filesystems, except perhaps those that are of
+ an unselected type or are empty. */
+
+static void
+show_all_entries (void)
+{
+ struct mount_entry *me;
+
+ for (me = mount_list; me; me = me->me_next)
+ show_dev (me->me_devname, me->me_mountdir, me->me_type);
+}
+
/* Add FSTYPE to the list of filesystem types to display. */
static void
-add_fs_type (char *fstype)
+add_fs_type (const char *fstype)
{
struct fs_type_list *fsp;
fsp = (struct fs_type_list *) xmalloc (sizeof (struct fs_type_list));
- fsp->fs_name = fstype;
+ fsp->fs_name = (char *) fstype;
fsp->fs_next = fs_select_list;
fs_select_list = fsp;
}
/* Add FSTYPE to the list of filesystem types to be omitted. */
static void
-add_excluded_fs_type (char *fstype)
+add_excluded_fs_type (const char *fstype)
{
struct fs_type_list *fsp;
fsp = (struct fs_type_list *) xmalloc (sizeof (struct fs_type_list));
- fsp->fs_name = fstype;
+ fsp->fs_name = (char *) fstype;
fsp->fs_next = fs_exclude_list;
fs_exclude_list = fsp;
}
}
exit (status);
}
+
+int
+main (int argc, char **argv)
+{
+ int i;
+ struct stat *stats;
+
+ program_name = argv[0];
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
+ fs_select_list = NULL;
+ fs_exclude_list = NULL;
+ inode_format = 0;
+ show_all_fs = 0;
+ show_listed_fs = 0;
+
+ if (getenv ("POSIXLY_CORRECT"))
+ kilobyte_blocks = 0;
+ else
+ {
+ char *bs;
+ kilobyte_blocks = 1;
+ if ((bs = getenv ("BLOCKSIZE"))
+ && strncmp (bs, "HUMAN", sizeof ("HUMAN") - 1) == 0)
+ human_blocks = 1;
+ }
+
+ print_type = 0;
+ posix_format = 0;
+ exit_status = 0;
+
+ while ((i = getopt_long (argc, argv, "aihkmPTt:vx:", long_options, NULL))
+ != EOF)
+ {
+ switch (i)
+ {
+ case 0: /* Long option. */
+ break;
+ case 'a':
+ show_all_fs = 1;
+ break;
+ case 'i':
+ inode_format = 1;
+ break;
+ case 'h':
+ human_blocks = 1;
+ kilobyte_blocks = 1;
+ megabyte_blocks = 0;
+ break;
+ case 'k':
+ human_blocks = 0;
+ kilobyte_blocks = 1;
+ megabyte_blocks = 0;
+ break;
+ case 'm':
+ human_blocks = 0;
+ kilobyte_blocks = 0;
+ megabyte_blocks = 1;
+ break;
+ case 'T':
+ print_type = 1;
+ break;
+ case 'P':
+ posix_format = 1;
+ break;
+ case 129:
+ require_sync = 1;
+ break;
+ case 130:
+ require_sync = 0;
+ break;
+ case 't':
+ add_fs_type (optarg);
+ break;
+ case 'v': /* For SysV compatibility. */
+ /* ignore */
+ break;
+ case 'x':
+ add_excluded_fs_type (optarg);
+ break;
+ default:
+ usage (1);
+ }
+ }
+
+ if (show_version)
+ {
+ printf ("df - %s\n", PACKAGE_VERSION);
+ exit (0);
+ }
+
+ if (show_help)
+ usage (0);
+
+ if (posix_format && megabyte_blocks)
+ error (1, 0, _("the option for counting 1MB blocks may not be used\n\
+with the portable output format"));
+
+ if (posix_format && human_blocks)
+ error (1, 0,
+ _("the option for printing with adaptive units may not be used\n\
+with the portable output format"));
+
+ /* Fail if the same file system type was both selected and excluded. */
+ {
+ int match = 0;
+ struct fs_type_list *i;
+ for (i = fs_select_list; i; i = i->fs_next)
+ {
+ struct fs_type_list *j;
+ for (j = fs_exclude_list; j; j = j->fs_next)
+ {
+ if (strcmp (i->fs_name, j->fs_name) == 0)
+ {
+ error (0, 0,
+ _("file system type `%s' both selected and excluded"),
+ i->fs_name);
+ match = 1;
+ break;
+ }
+ }
+ }
+ if (match)
+ exit (1);
+ }
+
+ if (optind == argc)
+ {
+#ifdef lint
+ /* Suppress `used before initialized' warning. */
+ stats = NULL;
+#endif
+ }
+ else
+ {
+ /* stat all the given entries to make sure they get automounted,
+ if necessary, before reading the filesystem table. */
+ stats = (struct stat *)
+ xmalloc ((argc - optind) * sizeof (struct stat));
+ for (i = optind; i < argc; ++i)
+ if (stat (argv[i], &stats[i - optind]))
+ {
+ error (0, errno, "%s", argv[i]);
+ exit_status = 1;
+ argv[i] = NULL;
+ }
+ }
+
+ mount_list =
+ read_filesystem_list ((fs_select_list != NULL
+ || fs_exclude_list != NULL
+ || print_type),
+ show_all_fs);
+
+ if (mount_list == NULL)
+ error (1, errno, _("cannot read table of mounted filesystems"));
+
+ print_header ();
+ if (require_sync)
+ sync ();
+
+ if (optind == argc)
+ show_all_entries ();
+ else
+ {
+ /* Display explicitly requested empty filesystems. */
+ show_listed_fs = 1;
+
+ for (i = optind; i < argc; ++i)
+ if (argv[i])
+ show_entry (argv[i], &stats[i - optind]);
+ }
+
+ exit (exit_status);
+}
+
projects / thirdparty / coreutils.git / commitdiff
