- add new applet rdev (Grant Erickson)

- fixes and shrink (me)
This commit is contained in:
Bernhard Reutner-Fischer 2008-08-19 11:28:52 +00:00
parent d7cc2e601d
commit c77e843c09
6 changed files with 41 additions and 0 deletions

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@ -286,6 +286,7 @@ USE_PSCAN(APPLET(pscan, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_PWD(APPLET_NOFORK(pwd, pwd, _BB_DIR_BIN, _BB_SUID_NEVER, pwd))
USE_RAIDAUTORUN(APPLET(raidautorun, _BB_DIR_SBIN, _BB_SUID_NEVER))
USE_RDATE(APPLET(rdate, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
USE_RDEV(APPLET(rdev, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
USE_READAHEAD(APPLET(readahead, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_READLINK(APPLET(readlink, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
USE_READPROFILE(APPLET(readprofile, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))

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@ -3168,6 +3168,14 @@
"\n -s Set the system date and time (default)" \
"\n -p Print the date and time" \
#define rdev_trivial_usage \
""
#define rdev_full_usage "\n\n" \
"Print the device node associated with the filesystem mounted at '/'"
#define rdev_example_usage \
"$ rdev\n" \
"/dev/mtdblock9 /\n"
#define readahead_trivial_usage \
"[FILE]..."
#define readahead_full_usage "\n\n" \

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@ -520,6 +520,7 @@ CONFIG_FEATURE_MOUNT_FLAGS=y
CONFIG_FEATURE_MOUNT_FSTAB=y
CONFIG_PIVOT_ROOT=y
CONFIG_RDATE=y
CONFIG_RDEV=y
CONFIG_READPROFILE=y
CONFIG_RTCWAKE=y
CONFIG_SCRIPT=y

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@ -707,6 +707,12 @@ config RDATE
the RFC868 protocol, which is built into the inetd daemon on most
systems.
config RDEV
bool "rdev"
default n
help
Print the device node associated with the filesystem mounted at '/'.
config READPROFILE
bool "readprofile"
default n

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@ -26,6 +26,7 @@ lib-$(CONFIG_MORE) += more.o
lib-$(CONFIG_MOUNT) += mount.o
lib-$(CONFIG_PIVOT_ROOT) += pivot_root.o
lib-$(CONFIG_RDATE) += rdate.o
lib-$(CONFIG_RDEV) += rdev.o
lib-$(CONFIG_READPROFILE) += readprofile.o
lib-$(CONFIG_RTCWAKE) += rtcwake.o
lib-$(CONFIG_SCRIPT) += script.o

24
util-linux/rdev.c Normal file
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@ -0,0 +1,24 @@
/* vi: set sw=4 ts=4: */
/*
* rdev - print device node associated with a filesystem
*
* Copyright (c) 2008 Nuovation System Designs, LLC
* Grant Erickson <gerickson@nuovations.com>
*
* Licensed under GPLv2, see file LICENSE in this tarball for details.
*
*/
#include "libbb.h"
int rdev_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int rdev_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
{
char const * const root_device = find_block_device("/");
if (root_device != NULL) {
printf("%s /\n", root_device);
return EXIT_SUCCESS;
}
return EXIT_FAILURE;
}