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--- busybox-1.14.2/coreutils/df.c Sun Jul 5 22:59:28 2009
+++ busybox-1.14.2-df/coreutils/df.c Sun Jul 5 23:00:09 2009
@@ -44,7 +44,6 @@
FILE *mount_table;
struct mntent *mount_entry;
struct statfs s;
- static const char ignored_mounts[] ALIGN1 = "rootfs\0";
enum {
OPT_KILO = (1 << 0),
@@ -120,7 +119,7 @@
mount_point = *argv++;
if (!mount_point)
break;
- mount_entry = find_mount_point(mount_point, bb_path_mtab_file);
+ mount_entry = find_mount_point(mount_point);
if (!mount_entry) {
bb_error_msg("%s: can't find mount point", mount_point);
set_error:
@@ -154,8 +153,8 @@
) / (blocks_used + s.f_bavail);
}
- /* GNU coreutils 6.10 skip certain mounts, try to be compatible. */
- if (index_in_strings(device, ignored_mounts) != -1)
+ /* GNU coreutils 6.10 skips certain mounts, try to be compatible. */
+ if (strcmp(device, "rootfs") == 0)
continue;
#ifdef WHY_WE_DO_IT_FOR_DEV_ROOT_ONLY
--- busybox-1.14.2/include/libbb.h Sun Jul 5 22:59:31 2009
+++ busybox-1.14.2-df/include/libbb.h Sun Jul 5 23:00:09 2009
@@ -1025,7 +1025,7 @@
#ifdef HAVE_MNTENT_H
extern int match_fstype(const struct mntent *mt, const char *fstypes) FAST_FUNC;
-extern struct mntent *find_mount_point(const char *name, const char *table) FAST_FUNC;
+extern struct mntent *find_mount_point(const char *name) FAST_FUNC;
#endif
extern void erase_mtab(const char * name) FAST_FUNC;
extern unsigned int tty_baud_to_value(speed_t speed) FAST_FUNC;
--- busybox-1.14.2/libbb/find_mount_point.c Sun Jul 5 22:59:24 2009
+++ busybox-1.14.2-df/libbb/find_mount_point.c Sun Jul 5 23:00:09 2009
@@ -17,7 +17,7 @@
* Given any other file (or directory), find the mount table entry for its
* filesystem.
*/
-struct mntent* FAST_FUNC find_mount_point(const char *name, const char *table)
+struct mntent* FAST_FUNC find_mount_point(const char *name)
{
struct stat s;
dev_t mountDevice;
@@ -25,27 +25,35 @@
struct mntent *mountEntry;
if (stat(name, &s) != 0)
- return 0;
+ return NULL;
- if ((s.st_mode & S_IFMT) == S_IFBLK)
+ if (S_ISBLK(s.st_mode))
mountDevice = s.st_rdev;
else
mountDevice = s.st_dev;
- mountTable = setmntent(table ? table : bb_path_mtab_file, "r");
+ mountTable = setmntent(bb_path_mtab_file, "r");
if (!mountTable)
return 0;
- while ((mountEntry = getmntent(mountTable)) != 0) {
+ while ((mountEntry = getmntent(mountTable)) != NULL) {
+ /* rootfs mount in Linux 2.6 exists always,
+ * and it makes sense to always ignore it.
+ * Otherwise people can't reference their "real" root! */
+ if (strcmp(mountEntry->mnt_fsname, "rootfs") == 0)
+ continue;
+
if (strcmp(name, mountEntry->mnt_dir) == 0
|| strcmp(name, mountEntry->mnt_fsname) == 0
) { /* String match. */
break;
}
- if (stat(mountEntry->mnt_fsname, &s) == 0 && s.st_rdev == mountDevice) /* Match the device. */
+ /* Match the device. */
+ if (stat(mountEntry->mnt_fsname, &s) == 0 && s.st_rdev == mountDevice)
break;
- if (stat(mountEntry->mnt_dir, &s) == 0 && s.st_dev == mountDevice) /* Match the directory's mount point. */
+ /* Match the directory's mount point. */
+ if (stat(mountEntry->mnt_dir, &s) == 0 && s.st_dev == mountDevice)
break;
}
endmntent(mountTable);
--- busybox-1.14.2/util-linux/mkfs_minix.c Sun Jul 5 22:59:30 2009
+++ busybox-1.14.2-df/util-linux/mkfs_minix.c Sun Jul 5 23:00:09 2009
@@ -624,7 +624,6 @@
int mkfs_minix_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int mkfs_minix_main(int argc UNUSED_PARAM, char **argv)
{
- struct mntent *mp;
unsigned opt;
char *tmp;
struct stat statbuf;
@@ -683,11 +682,8 @@
G.total_blocks = 65535;
/* Check if it is mounted */
- mp = find_mount_point(G.device_name, NULL);
- if (mp && strcmp(G.device_name, mp->mnt_fsname) == 0)
- bb_error_msg_and_die("%s is mounted on %s; "
- "refusing to make a filesystem",
- G.device_name, mp->mnt_dir);
+ if (find_mount_point(G.device_name))
+ bb_error_msg_and_die("can't format mounted filesystem");
xmove_fd(xopen(G.device_name, O_RDWR), dev_fd);
if (fstat(dev_fd, &statbuf) < 0)
--- busybox-1.14.2/util-linux/mkfs_vfat.c Sun Jul 5 22:59:30 2009
+++ busybox-1.14.2-df/util-linux/mkfs_vfat.c Sun Jul 5 23:00:35 2009
@@ -273,10 +273,10 @@
device_num == 0x0d00 || // xd
device_num == 0x1600 ) // hdc, hdd
)
- bb_error_msg_and_die("Will not try to make filesystem on full-disk device (use -I if wanted)");
+ bb_error_msg_and_die("will not try to make filesystem on full-disk device (use -I if wanted)");
// can't work on mounted filesystems
- if (find_mount_point(device_name, NULL))
- bb_error_msg_and_die("Can't format mounted filesystem");
+ if (find_mount_point(device_name))
+ bb_error_msg_and_die("can't format mounted filesystem");
#endif
// get true sector size
// (parameter must be int*, not long* or size_t*)
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