98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/*
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* snarffont.c
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*
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* Copyright (C) 2007 Red Hat, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <sys/ioctl.h>
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#include <sys/kd.h>
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#include <stdlib.h>
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#include <unistd.h>
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#define MAXFONTSIZE 65536
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int main(void) {
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unsigned char buf[MAXFONTSIZE];
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struct console_font_op cfo;
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unsigned short map[E_TABSZ];
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struct unipair descs[2048];
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struct unimapdesc d;
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int fd;
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if ((fd = open("/dev/tty0", O_RDONLY)) < 0) {
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fprintf(stderr, "%s: %m", __func__);
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return EXIT_FAILURE;
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}
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cfo.op = KD_FONT_OP_GET;
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cfo.flags = 0;
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cfo.width = 8;
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cfo.height = 16;
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cfo.charcount = 512;
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cfo.data = buf;
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if (ioctl(fd, KDFONTOP, &cfo)) {
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fprintf(stderr, "%s: %m", __func__);
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return EXIT_FAILURE;
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}
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if (ioctl(fd, GIO_UNISCRNMAP, map)) {
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fprintf(stderr, "%s: %m", __func__);
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return EXIT_FAILURE;
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}
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d.entry_ct = 2048;
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d.entries = descs;
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if (ioctl(fd, GIO_UNIMAP, &d)) {
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fprintf(stderr, "%s: %m", __func__);
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return EXIT_FAILURE;
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}
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if (write(1, &cfo, sizeof(cfo)) == -1) {
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fprintf(stderr, "%s: %m", __func__);
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return EXIT_FAILURE;
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}
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if (write(1, &cfo, sizeof(cfo)) == -1) {
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fprintf(stderr, "%s: %m", __func__);
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return EXIT_FAILURE;
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}
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if (write(1, buf, sizeof(buf)) == -1) {
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fprintf(stderr, "%s: %m", __func__);
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return EXIT_FAILURE;
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}
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if (write(1, map, sizeof(map)) == -1) {
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fprintf(stderr, "%s: %m", __func__);
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return EXIT_FAILURE;
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}
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if (write(1, &d.entry_ct, sizeof(d.entry_ct)) == -1) {
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fprintf(stderr, "%s: %m", __func__);
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return EXIT_FAILURE;
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}
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if (write(1, descs, d.entry_ct * sizeof(descs[0])) == -1) {
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fprintf(stderr, "%s: %m", __func__);
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return EXIT_FAILURE;
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}
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return 0;
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}
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