volname: new applet

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
------------------------------------------------------------------------------
(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>

5 files changed, 67 insertions, 0 deletions

diff --git a/include/applets.h b/include/applets.h
index e1b09ccaf..cb1ed567f 100644
--- a/include/applets.h
+++ b/include/applets.h
@@ -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))
diff --git a/include/usage.h b/include/usage.h
index 5aedeab78..accda3341 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -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" \
diff --git a/miscutils/Config.in b/miscutils/Config.in
index 06ff51a7c..689044794 100644
--- a/miscutils/Config.in
+++ b/miscutils/Config.in
@@ -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
diff --git a/miscutils/Kbuild b/miscutils/Kbuild
index 8ae8a488a..e378a099f 100644
--- a/miscutils/Kbuild
+++ b/miscutils/Kbuild
@@ -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
diff --git a/miscutils/volname.c b/miscutils/volname.c
new file mode 100644
index 000000000..a5174e636
--- /dev/null
+++ b/miscutils/volname.c
@@ -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;
+}