NetBSD/usr.sbin/sti/sti.c

152 lines
4.0 KiB
C

/* $NetBSD: sti.c,v 1.6 2005/11/11 15:08:40 peter Exp $ */
/*-
* Copyright (c) 2005 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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>
__RCSID("$NetBSD: sti.c,v 1.6 2005/11/11 15:08:40 peter Exp $");
#include <sys/param.h>
#include <sys/ioctl.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <err.h>
#include <vis.h>
#include <errno.h>
static int
unescape(const char **pp, int *state)
{
char ch, out;
while ((ch = *(*pp)++) != '\0') {
switch(unvis(&out, ch, state, 0)) {
case 0:
case UNVIS_NOCHAR:
break;
case UNVIS_VALID:
return out;
case UNVIS_VALIDPUSH:
(*pp)--;
return out;
case UNVIS_SYNBAD:
errno = EILSEQ;
return -1;
}
}
if (unvis(&out, '\0', state, UNVIS_END) == UNVIS_VALID)
return out;
errno = ENODATA;
return -1;
}
static void
sti(int fd, int c)
{
char ch = c;
if (ioctl(fd, TIOCSTI, &ch) == -1)
err(1, "Cannot simulate terminal input");
}
static void
sendstr(int fd, const char *str)
{
int c, state = 0;
const char *ptr = str;
while ((c = unescape(&ptr, &state)) != -1)
sti(fd, c);
if (c == -1 && errno != ENODATA)
warn("Cannot decode `%s'", str);
}
int
main(int argc, char *argv[])
{
const char *tty;
char ttydev[MAXPATHLEN];
int fd;
setprogname(*argv);
if (argc < 2) {
(void)fprintf(stderr, "Usage: %s <tty> [arg ...]\n",
getprogname());
return 1;
}
argc--;
argv++;
tty = *argv++;
argc--;
if (strncmp(tty, "/dev/", 5) == 0)
(void)snprintf(ttydev, sizeof(ttydev), "%s", tty);
else if (strncmp(tty, "tty", 3) == 0 || strncmp(tty, "pty", 3) == 0 ||
strncmp(tty, "pts/", 4) == 0)
(void)snprintf(ttydev, sizeof(ttydev), "/dev/%s", tty);
else if (isdigit((unsigned char)*tty))
(void)snprintf(ttydev, sizeof(ttydev), "/dev/pts/%s", tty);
else
(void)snprintf(ttydev, sizeof(ttydev), "/dev/tty%s", tty);
if ((fd = open(ttydev, O_RDWR)) == -1)
err(1, "Cannot open `%s'", ttydev);
if (argc == 0) {
char *line;
while ((line = fparseln(stdin, NULL, NULL, NULL, 0)) != NULL) {
sendstr(fd, line);
free(line);
}
} else {
for (; argc--; argv++) {
sendstr(fd, *argv);
if (argc != 0)
sti(fd, ' ');
}
}
(void)close(fd);
return 0;
}