kbd_mode: new applet by Loïc Grenié <loic.grenie@gmail.com>

kbd_mode_main                                          -     189    +189
packed_usage                                       22745   22833     +88
applets                                             3132    3144     +12
static.opts                                            7      12      +5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 3/0 up/down: 294/0)             Total: 294 bytes
   text    data     bss     dec     hex filename
 777210    1000    9532  787742   c051e busybox_old
 777575    1000    9532  788107   c068b busybox_unstripped

6 files changed, 90 insertions, 1 deletions

diff --git a/console-tools/Config.in b/console-tools/Config.in
index f82d4ce13..bd9dfb381 100644
--- a/console-tools/Config.in
+++ b/console-tools/Config.in
@@ -31,6 +31,12 @@ config DUMPKMAP
           This program dumps the kernel's keyboard translation table to
           stdout, in binary format. You can then use loadkmap to load it.
 
+config KBD_MODE
+        bool "kbd_mode"
+        default n
+        help
+          This program reports and sets keyboard mode.
+
 config LOADFONT
         bool "loadfont"
         default n
diff --git a/console-tools/Kbuild b/console-tools/Kbuild
index a55bc087c..cf3825ec6 100644
--- a/console-tools/Kbuild
+++ b/console-tools/Kbuild
@@ -10,6 +10,7 @@ lib-$(CONFIG_CLEAR)		+= clear.o
 lib-$(CONFIG_DEALLOCVT)         += deallocvt.o
 lib-$(CONFIG_DUMPKMAP)          += dumpkmap.o
 lib-$(CONFIG_SETCONSOLE)        += setconsole.o
+lib-$(CONFIG_KBD_MODE)          += kbd_mode.o
 lib-$(CONFIG_LOADFONT)          += loadfont.o
 lib-$(CONFIG_LOADKMAP)          += loadkmap.o
 lib-$(CONFIG_OPENVT)            += openvt.o
diff --git a/console-tools/kbd_mode.c b/console-tools/kbd_mode.c
new file mode 100644
index 000000000..0000ea180
--- /dev/null
+++ b/console-tools/kbd_mode.c
@@ -0,0 +1,71 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini loadkmap implementation for busybox
+ *
+ * Copyright (C) 2007 Loïc Grenié <loic.grenie@gmail.com>
+ *   written using Andries Brouwer <aeb@cwi.nl>'s kbd_mode from
+ *   console-utils v0.2.3, licensed under GNU GPLv2
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ *
+ */
+
+#include <getopt.h>
+#include "libbb.h"
+#include <linux/kd.h>
+
+int kbd_mode_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int kbd_mode_main(int argc, char **argv)
+{
+        static const char opts[] = "saku";
+
+        const char *opt = argv[1];
+        const char *p;
+        int fd;
+
+        fd = get_console_fd();
+        if (fd < 0) /* get_console_fd() already complained */
+                return EXIT_FAILURE;
+
+        if (opt == NULL) {
+                /* No arg */
+                const char *msg = "unknown";
+                int mode;
+
+                ioctl(fd, KDGKBMODE, &mode);
+                switch(mode) {
+                case K_RAW:
+                        msg = "raw (scancode)";
+                        break;
+                case K_XLATE:
+                        msg = "default (ASCII)";
+                        break;
+                case K_MEDIUMRAW:
+                        msg = "mediumraw (keycode)";
+                        break;
+                case K_UNICODE:
+                        msg = "Unicode (UTF-8)";
+                        break;
+                }
+                printf("The keyboard is in %s mode\n", msg);
+        }
+        else if (argc > 2 /* more than 1 arg */
+         || *opt != '-' /* not an option */
+         || (p = strchr(opts, opt[1])) == NULL /* not an option we expect */
+         || opt[2] != '\0' /* more than one option char */
+        ) {
+                bb_show_usage();
+                /* return EXIT_FAILURE; - not reached */
+        }
+        else {
+#if K_RAW != 0 || K_XLATE != 1 || K_MEDIUMRAW != 2 || K_UNICODE != 3
+#error kbd_mode must be changed
+#endif
+                /* The options are in the order of the various K_xxx */
+                ioctl(fd, KDSKBMODE, p - opts);
+        }
+
+        if (ENABLE_FEATURE_CLEAN_UP)
+                close(fd);
+        return EXIT_SUCCESS;
+}
diff --git a/include/applets.h b/include/applets.h
index 5b64e3a5a..587ccbf51 100644
--- a/include/applets.h
+++ b/include/applets.h
@@ -202,6 +202,7 @@ USE_IPLINK(APPLET(iplink, _BB_DIR_BIN, _BB_SUID_NEVER))
 USE_IPROUTE(APPLET(iproute, _BB_DIR_BIN, _BB_SUID_NEVER))
 USE_IPRULE(APPLET(iprule, _BB_DIR_BIN, _BB_SUID_NEVER))
 USE_IPTUNNEL(APPLET(iptunnel, _BB_DIR_BIN, _BB_SUID_NEVER))
+USE_KBD_MODE(APPLET(kbd_mode, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_KILL(APPLET(kill, _BB_DIR_BIN, _BB_SUID_NEVER))
 USE_KILLALL(APPLET_ODDNAME(killall, kill, _BB_DIR_USR_BIN, _BB_SUID_NEVER, killall))
 USE_KILLALL5(APPLET_ODDNAME(killall5, kill, _BB_DIR_USR_BIN, _BB_SUID_NEVER, killall5))
diff --git a/include/usage.h b/include/usage.h
index d9a6ae729..8f0a13c32 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -1805,6 +1805,16 @@
        "        [[i|o]seq] [[i|o]key KEY] [[i|o]csum]\n" \
        "        [ttl TTL] [tos TOS] [[no]pmtudisc] [dev PHYS_DEV]"
 
+#define kbd_mode_trivial_usage \
+       "[-a|k|s|u]"
+#define kbd_mode_full_usage \
+       "Report or set the keyboard mode" \
+       "\n\nOptions set mode:\n" \
+       "        -a      Default (ASCII)\n" \
+       "        -k      Medium-raw (keyboard)\n" \
+       "        -s      Raw (scancode)\n" \
+       "        -u      Unicode (utf-8)"
+
 #define kill_trivial_usage \
        "[-l] [-signal] process-id [process-id ...]"
 #define kill_full_usage \
diff --git a/libbb/get_console.c b/libbb/get_console.c
index b12951823..0da27b1e2 100644
--- a/libbb/get_console.c
+++ b/libbb/get_console.c
@@ -67,6 +67,6 @@ int get_console_fd(void)
                 }
         }
 
-        bb_error_msg("cannot get file descriptor referring to console");
+        bb_error_msg("can't open console");
         return fd;                      /* total failure */
 }