diff options
Diffstat (limited to 'loadkmap.c')
| -rw-r--r-- | loadkmap.c | 103 |
1 files changed, 53 insertions, 50 deletions
@@ -1,3 +1,4 @@ +/* vi: set sw=4 ts=4: */ /* * Mini loadkmap implementation for busybox * @@ -29,61 +30,63 @@ static const char loadkmap_usage[] = "loadkmap\n" -"\n" -"\tLoad a binary keyboard translation table from standard input.\n" -"\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; - } +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]; - 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; - } + 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; + } - ibuff=(u_short *) malloc(ibuffsz); - if (!ibuff) { - fprintf(stderr, "Out of memory.\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,(char *)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); - } + for (i = 0; i < MAX_NR_KEYMAPS; i++) { + if (flags[i] == 1) { + pos = 0; + while (pos < ibuffsz) { + if ((readsz = read(0, (char *) 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); + } + } } - } - close (fd); - return 0; + close(fd); + return 0; } |