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/*
* lang.c
*
* Copyright (C) 2007 Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <alloca.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <linux/keyboard.h>
#ifdef NR_KEYS
#undef NR_KEYS
#define NR_KEYS 128
#endif
#include "linux/kd.h"
#include "cpio.h"
#include "isys.h"
#include "lang.h"
#include "stubs.h"
int isysLoadFont(void) {
unsigned char font[65536];
struct console_font_op cfo;
unsigned short map[E_TABSZ];
struct unimapdesc d;
struct unimapinit u;
struct unipair desc[2048];
gzFile stream;
int rc;
#if defined (__s390__) || defined (__s390x__)
return 0;
#endif
stream = gunzip_open("/etc/screenfont.gz");
if (!stream)
return -EACCES;
gunzip_read(stream, &cfo, sizeof(cfo));
gunzip_read(stream, font, sizeof(font));
gunzip_read(stream, map, sizeof(map));
gunzip_read(stream, &d.entry_ct, sizeof(d.entry_ct));
d.entries = desc;
gunzip_read(stream, desc, d.entry_ct * sizeof(desc[0]));
gunzip_close(stream);
cfo.data = font;
cfo.op = KD_FONT_OP_SET;
rc = ioctl(1, KDFONTOP, &cfo);
if (rc) return rc;
rc = ioctl(1, PIO_UNIMAPCLR, &u);
if (rc) return rc;
rc = ioctl(1, PIO_UNIMAP, &d);
if (rc) return rc;
rc = ioctl(1, PIO_UNISCRNMAP, map);
if (rc) return rc;
/* activate the font map */
fprintf(stderr, "\033(K");
return 0;
}
int isysSetUnicodeKeymap(void) {
int console;
#if defined (__s390__) || defined (__s390x__)
return 0;
#endif
console = open("/dev/console", O_RDWR);
if (console < 0)
return -EACCES;
/* place keyboard in unicode mode */
ioctl(console, KDSKBMODE, K_UNICODE);
close(console);
return 0;
}
/* the file pointer must be at the beginning of the section already! */
int loadKeymap(gzFile stream) {
int console;
int kmap, key;
struct kbentry entry;
int keymaps[MAX_NR_KEYMAPS];
int count = 0;
unsigned int magic;
short keymap[NR_KEYS];
struct stat sb;
#if defined (__s390__) || defined (__s390x__)
return 0;
#endif
if (isVioConsole())
return 0;
/* assume that if we're already on a pty loading a keymap is silly */
fstat(0, &sb);
if (major(sb.st_rdev) == 3 || major(sb.st_rdev) == 136)
return 0;
if (gunzip_read(stream, &magic, sizeof(magic)) != sizeof(magic))
return -EIO;
if (magic != KMAP_MAGIC) return -EINVAL;
if (gunzip_read(stream, keymaps, sizeof(keymaps)) != sizeof(keymaps))
return -EINVAL;
console = open("/dev/tty0", O_RDWR);
if (console < 0)
return -EACCES;
for (kmap = 0; kmap < MAX_NR_KEYMAPS; kmap++) {
if (!keymaps[kmap]) continue;
if (gunzip_read(stream, keymap, sizeof(keymap)) != sizeof(keymap)) {
close(console);
return -EIO;
}
count++;
for (key = 0; key < NR_KEYS; key++) {
entry.kb_index = key;
entry.kb_table = kmap;
entry.kb_value = keymap[key];
if (KTYP(entry.kb_value) != KT_SPEC) {
if (ioctl(console, KDSKBENT, &entry)) {
int ret = errno;
close(console);
return ret;
}
}
}
}
close(console);
return 0;
}
int isysLoadKeymap(char * keymap) {
int num = -1;
int rc;
gzFile f;
struct kmapHeader hdr;
struct kmapInfo * infoTable;
char buf[16384]; /* I hope this is big enough */
int i;
f = gunzip_open("/etc/keymaps.gz");
if (!f) return -EACCES;
if (gunzip_read(f, &hdr, sizeof(hdr)) != sizeof(hdr)) {
gunzip_close(f);
return -EINVAL;
}
i = hdr.numEntries * sizeof(*infoTable);
infoTable = alloca(i);
if (gunzip_read(f, infoTable, i) != i) {
gunzip_close(f);
return -EIO;
}
for (i = 0; i < hdr.numEntries; i++)
if (!strcmp(infoTable[i].name, keymap)) {
num = i;
break;
}
if (num == -1) {
gunzip_close(f);
return -ENOENT;
}
for (i = 0; i < num; i++) {
if (gunzip_read(f, buf, infoTable[i].size) != infoTable[i].size) {
gunzip_close(f);
return -EIO;
}
}
rc = loadKeymap(f);
gunzip_close(f);
return rc;
}
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