X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=console-tools%2Fdumpkmap.c;h=5b5b296b4581ca1b568d24862dc5653fac62c8be;hb=d1b6078e5d614993de2a858e85f1dc06cfe5539b;hp=3ff5ef691a49dde95797f35232a846ef1092e67f;hpb=f57c944e09417edcbcd69f2b01b937cadef39db2;p=oweals%2Fbusybox.git

diff --git a/console-tools/dumpkmap.c b/console-tools/dumpkmap.c
index 3ff5ef691..5b5b296b4 100644
--- a/console-tools/dumpkmap.c
+++ b/console-tools/dumpkmap.c
@@ -20,11 +20,14 @@
  *
  */
 
-#include "busybox.h"
 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
 #include <sys/ioctl.h>
+#include "busybox.h"
 
 /* From <linux/kd.h> */
 struct kbentry {
@@ -32,11 +35,11 @@ struct kbentry {
 	unsigned char kb_index;
 	unsigned short kb_value;
 };
-#define KDGKBENT        0x4B46  /* gets one entry in translation table */
+#define KDGKBENT 0x4B46  /* gets one entry in translation table */
 
 /* From <linux/keyboard.h> */
-#define NR_KEYS         128
-#define MAX_NR_KEYMAPS  256
+#define NR_KEYS 128
+#define MAX_NR_KEYMAPS 256
 
 int dumpkmap_main(int argc, char **argv)
 {
@@ -44,32 +47,21 @@ int dumpkmap_main(int argc, char **argv)
 	int i, j, fd;
 	char flags[MAX_NR_KEYMAPS], magic[] = "bkeymap";
 
-	if (argc>=2 && *argv[1]=='-') {
-		usage(dumpkmap_usage);
-	}
+	if (argc >= 2 && *argv[1] == '-')
+		bb_show_usage();
 
-	fd = open("/dev/tty0", O_RDWR);
-	if (fd < 0) {
-		error_msg("Error opening /dev/tty0: %s\n", strerror(errno));
-		return EXIT_FAILURE;
-	}
+	fd = bb_xopen(CURRENT_VC, O_RDWR);
 
 	write(1, magic, 7);
 
-	for (i=0; i < MAX_NR_KEYMAPS; i++) flags[i]=0;
-	flags[0]=1; 
-	flags[1]=1;
-	flags[2]=1;
-	flags[4]=1;
-	flags[5]=1;
-	flags[6]=1;
-	flags[8]=1;
-	flags[9]=1;
-	flags[10]=1;
-	flags[12]=1;
-	
+	/* Here we want to set everything to 0 except for indexes:
+	 * [0-2] [4-6] [8-10] [12] */
+	memset(flags, 0x00, MAX_NR_KEYMAPS);
+	memset(flags, 0x01, 13);
+	flags[3] = flags[7] = flags[11] = 0;
+
 	/* dump flags */
-	for (i=0; i < MAX_NR_KEYMAPS; i++) write(1,&flags[i],1); 
+	write(1, flags, MAX_NR_KEYMAPS);
 
 	for (i = 0; i < MAX_NR_KEYMAPS; i++) {
 		if (flags[i] == 1) {
@@ -77,13 +69,13 @@ int dumpkmap_main(int argc, char **argv)
 				ke.kb_index = j;
 				ke.kb_table = i;
 				if (ioctl(fd, KDGKBENT, &ke) < 0) {
-				
-					error_msg("ioctl returned: %s, %s, %s, %xqq\n",strerror(errno),(char *)&ke.kb_index,(char *)&ke.kb_table,(int)&ke.kb_value);
-					}
-				else {
-					write(1,(void*)&ke.kb_value,2);	
-					}	
-				
+					bb_perror_msg("ioctl failed with %s, %s, %p",
+						(char *)&ke.kb_index,
+						(char *)&ke.kb_table,
+						&ke.kb_value);
+				} else {
+					write(1, (void*)&ke.kb_value, 2);
+				}
 			}
 		}
 	}