NetBSD/usr.sbin/wsconscfg/wsconscfg.c

164 lines
4.1 KiB
C

/* $NetBSD: wsconscfg.c,v 1.18 2017/05/04 16:26:10 sevan Exp $ */
/*
* Copyright (c) 1999
* Matthias Drochner. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <sys/cdefs.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <err.h>
#include <errno.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplay_usl_io.h>
#define DEFDEV "/dev/ttyEcfg"
static void usage(void) __dead;
static void
usage(void)
{
const char *p = getprogname();
(void)fprintf(stderr,
"Usage: %s [-e emul] [-f ctldev] [-t type] index\n"
"\t%s -d [-F] [-f ctldev] index\n"
"\t%s -g [-f ctldev]\n"
"\t%s -k | -m [-d] [-f ctldev] [index]\n"
"\t%s -s [-f ctldev] index\n", p, p, p, p, p);
exit(1);
}
int
main(int argc, char **argv)
{
const char *wsdev;
int c, delete, kbd, idx, wsfd, swtch, get, mux;
struct wsdisplay_addscreendata asd;
struct wsdisplay_delscreendata dsd;
struct wsmux_device wmd;
setprogname(argv[0]);
wsdev = DEFDEV;
delete = 0;
kbd = 0;
mux = 0;
swtch = 0;
idx = -1;
get = 0;
asd.screentype = 0;
asd.emul = 0;
dsd.flags = 0;
while ((c = getopt(argc, argv, "de:Ff:gkmst:")) != -1) {
switch (c) {
case 'd':
delete++;
break;
case 'e':
asd.emul = optarg;
break;
case 'F':
dsd.flags |= WSDISPLAY_DELSCR_FORCE;
break;
case 'f':
wsdev = optarg;
break;
case 'g':
get++;
break;
case 'k':
kbd++;
break;
case 'm':
mux++;
kbd++;
break;
case 's':
swtch++;
break;
case 't':
asd.screentype = optarg;
break;
case '?':
default:
usage();
break;
}
}
argc -= optind;
argv += optind;
if (!get || argc != 0) {
if ((kbd || swtch) ? (argc > 1) : (argc != 1))
usage();
if (argc > 0 && sscanf(argv[0], "%d", &idx) != 1)
errx(1, "invalid index");
}
if ((wsfd = open(wsdev, get ? O_RDONLY : O_RDWR)) == -1)
err(EXIT_FAILURE, "Cannot open `%s'", wsdev);
if (swtch) {
if (ioctl(wsfd, VT_ACTIVATE, idx) == -1)
err(EXIT_FAILURE, "Cannot switch to %d", idx);
} else if (get) {
if (ioctl(wsfd, VT_GETACTIVE, &idx) == -1)
err(EXIT_FAILURE, "Cannot get current screen");
(void)printf("%d\n", idx);
} else if (kbd) {
wmd.type = mux ? WSMUX_MUX : WSMUX_KBD;
wmd.idx = idx;
if (delete) {
if (ioctl(wsfd, WSMUX_REMOVE_DEVICE, &wmd) == -1)
err(EXIT_FAILURE, "WSMUX_REMOVE_DEVICE");
} else {
if (ioctl(wsfd, WSMUX_ADD_DEVICE, &wmd) == -1)
err(EXIT_FAILURE, "WSMUX_ADD_DEVICE");
}
} else if (delete) {
dsd.idx = idx;
if (ioctl(wsfd, WSDISPLAYIO_DELSCREEN, &dsd) == -1)
err(EXIT_FAILURE, "WSDISPLAYIO_DELSCREEN");
} else {
asd.idx = idx;
if (ioctl(wsfd, WSDISPLAYIO_ADDSCREEN, &asd) == -1) {
if (errno == EBUSY)
errx(EXIT_FAILURE,
"screen %d is already configured", idx);
else
err(EXIT_FAILURE, "WSDISPLAYIO_ADDSCREEN");
}
}
return 0;
}