mirror of
https://github.com/sheumann/hush.git
synced 2024-08-21 11:28:57 +00:00
Bernhard Fischer provided a mountpoint(1) applet. This is apparently something
sysvinit provides, and which is used by the debian init scripts.
This commit is contained in:
parent
fc3f048f8f
commit
d00b3a5e94
@ -435,6 +435,9 @@
|
||||
#ifdef CONFIG_MOUNT
|
||||
APPLET(mount, mount_main, _BB_DIR_BIN, _BB_SUID_NEVER)
|
||||
#endif
|
||||
#ifdef CONFIG_MOUNTPOINT
|
||||
APPLET(mountpoint, mountpoint_main, _BB_DIR_BIN, _BB_SUID_NEVER)
|
||||
#endif
|
||||
#ifdef CONFIG_MSH
|
||||
APPLET_NOUSAGE("msh", msh_main, _BB_DIR_BIN, _BB_SUID_NEVER)
|
||||
#endif
|
||||
|
@ -1922,6 +1922,20 @@
|
||||
"$ mount /dev/fd0 /mnt -t msdos -o ro\n" \
|
||||
"$ mount /tmp/diskimage /opt -t ext2 -o loop\n"
|
||||
|
||||
#define mountpoint_trivial_usage \
|
||||
"[-q] <[-d] DIR | -x DEVICE>"
|
||||
#define mountpoint_full_usage \
|
||||
"mountpoint checks if the directory is a mountpoint\n\n" \
|
||||
"Options:\n" \
|
||||
"\t-q:\t\tBe more quiet\n" \
|
||||
"\t-d:\t\tPrint major/minor device number of the filesystem\n" \
|
||||
"\t-x:\t\tPrint major/minor device number of the blockdevice"
|
||||
#define mountpoint_example_usage \
|
||||
"$ mountpoint /proc\n" \
|
||||
"/proc is not a mountpoint\n" \
|
||||
"$ mountpoint /sys\n" \
|
||||
"/sys is a mountpoint\n"
|
||||
|
||||
#define mt_trivial_usage \
|
||||
"[-f device] opcode value"
|
||||
#define mt_full_usage \
|
||||
|
@ -194,6 +194,12 @@ config CONFIG_FEATURE_MAKEDEVS_TABLE
|
||||
|
||||
endchoice
|
||||
|
||||
config CONFIG_MOUNTPOINT
|
||||
bool "mountpoint"
|
||||
default n
|
||||
help
|
||||
mountpoint checks if the directory is a mountpoint.
|
||||
|
||||
config CONFIG_MT
|
||||
bool "mt"
|
||||
default n
|
||||
|
@ -34,6 +34,7 @@ MISCUTILS-$(CONFIG_EJECT) += eject.o
|
||||
MISCUTILS-$(CONFIG_HDPARM) += hdparm.o
|
||||
MISCUTILS-$(CONFIG_LAST) += last.o
|
||||
MISCUTILS-$(CONFIG_MAKEDEVS) += makedevs.o
|
||||
MISCUTILS-$(CONFIG_MOUNTPOINT) += mountpoint.o
|
||||
MISCUTILS-$(CONFIG_MT) += mt.o
|
||||
MISCUTILS-$(CONFIG_RX) += rx.o
|
||||
MISCUTILS-$(CONFIG_SETSID) += setsid.o
|
||||
|
70
miscutils/mountpoint.c
Normal file
70
miscutils/mountpoint.c
Normal file
@ -0,0 +1,70 @@
|
||||
/* vi: set sw=4 ts=4: */
|
||||
/*
|
||||
* mountpoint implementation for busybox
|
||||
*
|
||||
* Copyright (C) 2005 Bernhard Fischer
|
||||
*
|
||||
* Licensed under the GPL v2, see the file LICENSE in this tarball.
|
||||
*
|
||||
* Based on sysvinit's mountpoint
|
||||
*/
|
||||
|
||||
#include <sys/stat.h>
|
||||
#include <errno.h> /* errno */
|
||||
#include <string.h> /* strerror */
|
||||
#include <getopt.h> /* optind */
|
||||
#include "busybox.h"
|
||||
|
||||
int mountpoint_main(int argc, char **argv)
|
||||
{
|
||||
int opt = bb_getopt_ulflags(argc, argv, "qdx");
|
||||
#define OPT_q (1)
|
||||
#define OPT_d (2)
|
||||
#define OPT_x (4)
|
||||
|
||||
if (optind != argc - 1)
|
||||
bb_show_usage();
|
||||
{
|
||||
char *arg = argv[optind];
|
||||
struct stat st;
|
||||
|
||||
if ( (opt & OPT_x && stat(arg, &st) == 0) || (lstat(arg, &st) == 0) ) {
|
||||
if (opt & OPT_x) {
|
||||
if (S_ISBLK(st.st_mode))
|
||||
{
|
||||
bb_printf("%u:%u\n", major(st.st_rdev),
|
||||
minor(st.st_rdev));
|
||||
return EXIT_SUCCESS;
|
||||
} else {
|
||||
if (opt & OPT_q)
|
||||
putchar('\n');
|
||||
else
|
||||
bb_error_msg("%s: not a block device", arg);
|
||||
}
|
||||
return EXIT_FAILURE;
|
||||
} else
|
||||
if (S_ISDIR(st.st_mode)) {
|
||||
dev_t st_dev = st.st_dev;
|
||||
ino_t st_ino = st.st_ino;
|
||||
char *p;
|
||||
bb_xasprintf(&p, "%s/..", arg);
|
||||
if (stat(p, &st) == 0) {
|
||||
short ret = (st_dev != st.st_dev) ||
|
||||
(st_dev == st.st_dev && st_ino == st.st_ino);
|
||||
if (opt & OPT_d)
|
||||
bb_printf("%u:%u\n", major(st_dev), minor(st_dev));
|
||||
else if (!(opt & OPT_q))
|
||||
bb_printf("%s is %sa mountpoint\n", arg, ret?"":"not ");
|
||||
return !ret;
|
||||
}
|
||||
} else {
|
||||
if (!(opt & OPT_q))
|
||||
bb_error_msg("%s: not a directory", arg);
|
||||
return EXIT_FAILURE;
|
||||
}
|
||||
}
|
||||
if (!(opt & OPT_q))
|
||||
bb_perror_msg(arg);
|
||||
return EXIT_FAILURE;
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue
Block a user