-#include "internal.h"
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <linux/kd.h>
-#include <linux/keyboard.h>
-#include <sys/ioctl.h>
-
-
-const char loadkmap_usage[] = "loadkmap\n"
-"\n"
-"\tLoad a binary keyboard translation table from standard input.\n"
-"\n";
-
-
-int
-loadkmap_main(int argc, char * * argv)
-{
- struct kbentry ke;
- u_short *ibuff;
- int i,j,fd,readsz,pos,ibuffsz=NR_KEYS * sizeof(u_short);
- char flags[MAX_NR_KEYMAPS],magic[]="bkeymap",buff[7];
-
- fd = open("/dev/tty0", O_RDWR);
- if (fd < 0) {
- fprintf(stderr, "Error opening /dev/tty0: %s\n", strerror(errno));
- return 1;
- }
-
- read(0,buff,7);
- if (0 != strncmp(buff,magic,7)) {
- fprintf(stderr, "This is not a valid binary keymap.\n");
- return 1;
- }
-
- if ( MAX_NR_KEYMAPS != read(0,flags,MAX_NR_KEYMAPS) ) {
- fprintf(stderr, "Error reading keymap flags: %s\n", strerror(errno));
- return 1;
- }
-
- ibuff=(u_short *) malloc(ibuffsz);
- if (!ibuff) {
- fprintf(stderr, "Out of memory.\n");
- return 1;
- }
-
- for(i=0; i<MAX_NR_KEYMAPS; i++) {
- if (flags[i]==1){
- pos=0;
- while (pos < ibuffsz) {
- if ( (readsz = read(0,ibuff+pos,ibuffsz-pos)) < 0 ) {
- fprintf(stderr, "Error reading keymap: %s\n",
- strerror(errno));
- return 1;
- }
- pos += readsz;
- }
- for(j=0; j<NR_KEYS; j++) {
- ke.kb_index = j;
- ke.kb_table = i;
- ke.kb_value = ibuff[j];
- ioctl(fd, KDSKBENT, &ke);
- }
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini loadkmap implementation for busybox
+ *
+ * Copyright (C) 1998 Enrique Zanardi <ezanardi@ull.es>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ *
+ */
+
+#include "libbb.h"
+
+#define BINARY_KEYMAP_MAGIC "bkeymap"
+
+/* From <linux/kd.h> */
+struct kbentry {
+ unsigned char kb_table;
+ unsigned char kb_index;
+ unsigned short kb_value;
+};
+/* sets one entry in translation table */
+#define KDSKBENT 0x4B47
+
+/* From <linux/keyboard.h> */
+#define NR_KEYS 128
+#define MAX_NR_KEYMAPS 256
+
+int loadkmap_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int loadkmap_main(int argc, char **argv ATTRIBUTE_UNUSED)
+{
+ struct kbentry ke;
+ int i, j, fd;
+ uint16_t ibuff[NR_KEYS];
+ char flags[MAX_NR_KEYMAPS];
+ char buff[7];
+
+ if (argc != 1)
+ bb_show_usage();
+
+ fd = xopen(CURRENT_VC, O_RDWR);
+
+ xread(0, buff, 7);
+ if (strncmp(buff, BINARY_KEYMAP_MAGIC, 7))
+ bb_error_msg_and_die("this is not a valid binary keymap");
+
+ xread(0, flags, MAX_NR_KEYMAPS);
+
+ for (i = 0; i < MAX_NR_KEYMAPS; i++) {
+ if (flags[i] == 1) {
+ xread(0, ibuff, NR_KEYS * sizeof(uint16_t));
+ for (j = 0; j < NR_KEYS; j++) {
+ ke.kb_index = j;
+ ke.kb_table = i;
+ ke.kb_value = ibuff[j];
+ ioctl(fd, KDSKBENT, &ke);
+ }
+ }
}
- }
- close (fd);
- return 0;
+
+ if (ENABLE_FEATURE_CLEAN_UP) close(fd);
+ return 0;
}