more correction for getopt_ulflags() documentation by author of this fuck logic

[oweals/busybox.git] / console-tools / dumpkmap.c

diff --git a/console-tools/dumpkmap.c b/console-tools/dumpkmap.c
index f1805052960f1f0e33446b433be8f21e027550c8..5b5b296b4581ca1b568d24862dc5653fac62c8be 100644 (file)
--- a/console-tools/dumpkmap.c
+++ b/console-tools/dumpkmap.c
@@ -20,11 +20,14 @@
  *
  */
 
-#include "internal.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 {
@@ -32,19 +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
-
-
-static const char dumpkmap_usage[] = "dumpkmap\n"
-#ifndef BB_FEATURE_TRIVIAL_HELP
-       "\nPrints out a binary keyboard translation table to standard input.\n"
-#endif
-       ;
-
+#define NR_KEYS 128
+#define MAX_NR_KEYMAPS 256
 
 int dumpkmap_main(int argc, char **argv)
 {
@@ -52,32 +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) {
-               errorMsg("Error opening /dev/tty0: %s\n", strerror(errno));
-               return 1;
-       }
+       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) {
@@ -85,16 +69,16 @@ int dumpkmap_main(int argc, char **argv)
                                ke.kb_index = j;
                                ke.kb_table = i;
                                if (ioctl(fd, KDGKBENT, &ke) < 0) {
-                               
-                                       errorMsg("ioctl returned: %s, %s, %s, %xqq\n",strerror(errno),(char *)&ke.kb_index,(char *)&ke.kb_table,(int)&ke.kb_value);
-                                       }
-                               else {
-                                       write(1,&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);
+                               }
                        }
                }
        }
        close(fd);
-       return 0;
+       return EXIT_SUCCESS;
 }