Small size optimization from Aaron Lehmann

[oweals/busybox.git] / loadkmap.c

diff --git a/loadkmap.c b/loadkmap.c
index fc2439864454b778a06403a40b8ee621e851d2f5..4f217d6304cc104e0743353d29bf2c0953d113f5 100644 (file)
--- a/loadkmap.c
+++ b/loadkmap.c
@@ -20,11 +20,14 @@
  *
  */
 
-#include "busybox.h"
 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
 #include <sys/ioctl.h>
+#include "busybox.h"
 
 #define BINARY_KEYMAP_MAGIC "bkeymap"
 
@@ -34,11 +37,11 @@ struct kbentry {
        unsigned char kb_index;
        unsigned short kb_value;
 };
-#define KDSKBENT        0x4B47  /* sets one entry in translation table */
+static const int KDSKBENT = 0x4B47;  /* sets one entry in translation table */
 
 /* From <linux/keyboard.h> */
-#define NR_KEYS         128
-#define MAX_NR_KEYMAPS  256
+static const int NR_KEYS = 128;
+static const int MAX_NR_KEYMAPS = 256;
 
 int loadkmap_main(int argc, char **argv)
 {
@@ -48,15 +51,15 @@ int loadkmap_main(int argc, char **argv)
        char flags[MAX_NR_KEYMAPS], buff[7];
 
        if (argc != 1)
-               usage(loadkmap_usage);
+               show_usage();
 
-       fd = open("/dev/tty0", O_RDWR);
+       fd = open(CURRENT_VC, O_RDWR);
        if (fd < 0)
-               perror_msg_and_die("Error opening /dev/tty0");
+               perror_msg_and_die("Error opening " CURRENT_VC);
 
        read(0, buff, 7);
        if (0 != strncmp(buff, BINARY_KEYMAP_MAGIC, 7))
-               error_msg_and_die("This is not a valid binary keymap.\n");
+               error_msg_and_die("This is not a valid binary keymap.");
 
        if (MAX_NR_KEYMAPS != read(0, flags, MAX_NR_KEYMAPS))
                perror_msg_and_die("Error reading keymap flags");