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/*
* snarffont.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 <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <sys/kd.h>
#include <stdlib.h>
#include <unistd.h>
#define MAXFONTSIZE 65536
int main(void) {
unsigned char buf[MAXFONTSIZE];
struct console_font_op cfo;
unsigned short map[E_TABSZ];
struct unipair descs[2048];
struct unimapdesc d;
int fd;
if ((fd = open("/dev/tty0", O_RDONLY)) < 0) {
fprintf(stderr, "%s: %m", __func__);
return EXIT_FAILURE;
}
cfo.op = KD_FONT_OP_GET;
cfo.flags = 0;
cfo.width = 8;
cfo.height = 16;
cfo.charcount = 512;
cfo.data = buf;
if (ioctl(fd, KDFONTOP, &cfo)) {
fprintf(stderr, "%s: %m", __func__);
return EXIT_FAILURE;
}
if (ioctl(fd, GIO_UNISCRNMAP, map)) {
fprintf(stderr, "%s: %m", __func__);
return EXIT_FAILURE;
}
d.entry_ct = 2048;
d.entries = descs;
if (ioctl(fd, GIO_UNIMAP, &d)) {
fprintf(stderr, "%s: %m", __func__);
return EXIT_FAILURE;
}
if (write(1, &cfo, sizeof(cfo)) == -1) {
fprintf(stderr, "%s: %m", __func__);
return EXIT_FAILURE;
}
if (write(1, &cfo, sizeof(cfo)) == -1) {
fprintf(stderr, "%s: %m", __func__);
return EXIT_FAILURE;
}
if (write(1, buf, sizeof(buf)) == -1) {
fprintf(stderr, "%s: %m", __func__);
return EXIT_FAILURE;
}
if (write(1, map, sizeof(map)) == -1) {
fprintf(stderr, "%s: %m", __func__);
return EXIT_FAILURE;
}
if (write(1, &d.entry_ct, sizeof(d.entry_ct)) == -1) {
fprintf(stderr, "%s: %m", __func__);
return EXIT_FAILURE;
}
if (write(1, descs, d.entry_ct * sizeof(descs[0])) == -1) {
fprintf(stderr, "%s: %m", __func__);
return EXIT_FAILURE;
}
return 0;
}
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