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volname: new applet

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function                                             old     new   delta
volname_main                                           -      90     +90
packed_usage                                       26373   26387     +14
applet_names                                        2078    2086      +8
applet_main                                         1232    1236      +4
applet_nameofs                                       616     618      +2
applet_install_loc                                   154     155      +1
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(add/remove: 1/0 grow/shrink: 5/0 up/down: 119/0)             Total: 119 bytes

Signed-off-by: Matthew Stoltenberg <d3matt@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Matthew Stoltenberg 2009-08-13 00:59:32 +02:00 committed by Denys Vlasenko
parent dbfa45b3b2
commit 4803db53b8
5 changed files with 67 additions and 0 deletions
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1
include/applets.h
View File

@ -416,6 +416,7 @@ IF_UUENCODE(APPLET(uuencode, _BB_DIR_USR_BIN, _BB_SUID_DROP))
IF_VCONFIG(APPLET(vconfig, _BB_DIR_SBIN, _BB_SUID_DROP))
IF_VI(APPLET(vi, _BB_DIR_BIN, _BB_SUID_DROP))
IF_VLOCK(APPLET(vlock, _BB_DIR_USR_BIN, _BB_SUID_REQUIRE))
IF_VOLNAME(APPLET(volname, _BB_DIR_USR_BIN, _BB_SUID_DROP))
IF_WATCH(APPLET(watch, _BB_DIR_BIN, _BB_SUID_DROP))
IF_WATCHDOG(APPLET(watchdog, _BB_DIR_SBIN, _BB_SUID_DROP))
IF_WC(APPLET(wc, _BB_DIR_USR_BIN, _BB_SUID_DROP))

5
include/usage.h
View File

@ -4901,6 +4901,11 @@ IF_FEATURE_TUNCTL_UG( \
"\nOptions:" \
"\n -a Lock all VTs" \
#define volname_trivial_usage \
"[DEVICE]"
#define volname_full_usage "\n\n" \
"Show CD volume name of the DEVICE (default /dev/cdrom)"
#define watch_trivial_usage \
"[-n seconds] [-t] PROG [ARGS]"
#define watch_full_usage "\n\n" \

6
miscutils/Config.in
View File

@ -584,6 +584,12 @@ config TTYSIZE
error, but returns default 80x24.
Usage in shell scripts: width=`ttysize w`.
config VOLNAME
bool "volname"
default n
help
Prints a CD-ROM volume name.
config WATCHDOG
bool "watchdog"
default n

1
miscutils/Kbuild
View File

@ -40,4 +40,5 @@ lib-$(CONFIG_TASKSET) += taskset.o
lib-$(CONFIG_TIME) += time.o
lib-$(CONFIG_TIMEOUT) += timeout.o
lib-$(CONFIG_TTYSIZE) += ttysize.o
lib-$(CONFIG_VOLNAME) += volname.o
lib-$(CONFIG_WATCHDOG) += watchdog.o

54
miscutils/volname.c Normal file
View File

@ -0,0 +1,54 @@
/*
* Reads and displays CD-ROM volume name
*
* Several people have asked how to read CD volume names so I wrote this
* small program to do it.
*
* usage: volname [<device-file>]
*
* Copyright (C) 2000-2001 Jeff Tranter (tranter@pobox.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* mods from distrubuted source (eject-2.0.13) are by
* Matthew Stoltenberg <d3matt@gmail.com>
*/
#include "libbb.h"
int volname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int volname_main(int argc UNUSED_PARAM, char **argv)
{
int fd;
char buffer[32];
const char *device;
device = "/dev/cdrom";
if (argv[1]) {
device = argv[1];
if (argv[2])
bb_show_usage();
}
fd = xopen(device, O_RDONLY);
xlseek(fd, 32808, SEEK_SET);
xread(fd, buffer, 32);
printf("%32.32s\n", buffer);
if (ENABLE_FEATURE_CLEAN_UP) {
close(fd);
}
return 0;
}