145 lines
3.6 KiB
C
145 lines
3.6 KiB
C
/* $NetBSD: sti.c,v 1.7 2008/04/28 20:24:17 martin Exp $ */
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/*-
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* Copyright (c) 2005 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: sti.c,v 1.7 2008/04/28 20:24:17 martin Exp $");
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <err.h>
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#include <vis.h>
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#include <errno.h>
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static int
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unescape(const char **pp, int *state)
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{
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char ch, out;
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while ((ch = *(*pp)++) != '\0') {
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switch(unvis(&out, ch, state, 0)) {
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case 0:
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case UNVIS_NOCHAR:
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break;
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case UNVIS_VALID:
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return out;
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case UNVIS_VALIDPUSH:
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(*pp)--;
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return out;
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case UNVIS_SYNBAD:
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errno = EILSEQ;
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return -1;
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}
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}
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if (unvis(&out, '\0', state, UNVIS_END) == UNVIS_VALID)
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return out;
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errno = ENODATA;
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return -1;
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}
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static void
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sti(int fd, int c)
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{
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char ch = c;
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if (ioctl(fd, TIOCSTI, &ch) == -1)
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err(1, "Cannot simulate terminal input");
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}
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static void
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sendstr(int fd, const char *str)
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{
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int c, state = 0;
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const char *ptr = str;
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while ((c = unescape(&ptr, &state)) != -1)
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sti(fd, c);
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if (c == -1 && errno != ENODATA)
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warn("Cannot decode `%s'", str);
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}
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int
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main(int argc, char *argv[])
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{
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const char *tty;
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char ttydev[MAXPATHLEN];
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int fd;
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setprogname(*argv);
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if (argc < 2) {
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(void)fprintf(stderr, "Usage: %s <tty> [arg ...]\n",
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getprogname());
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return 1;
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}
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argc--;
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argv++;
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tty = *argv++;
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argc--;
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if (strncmp(tty, "/dev/", 5) == 0)
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(void)snprintf(ttydev, sizeof(ttydev), "%s", tty);
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else if (strncmp(tty, "tty", 3) == 0 || strncmp(tty, "pty", 3) == 0 ||
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strncmp(tty, "pts/", 4) == 0)
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(void)snprintf(ttydev, sizeof(ttydev), "/dev/%s", tty);
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else if (isdigit((unsigned char)*tty))
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(void)snprintf(ttydev, sizeof(ttydev), "/dev/pts/%s", tty);
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else
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(void)snprintf(ttydev, sizeof(ttydev), "/dev/tty%s", tty);
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if ((fd = open(ttydev, O_RDWR)) == -1)
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err(1, "Cannot open `%s'", ttydev);
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if (argc == 0) {
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char *line;
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while ((line = fparseln(stdin, NULL, NULL, NULL, 0)) != NULL) {
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sendstr(fd, line);
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free(line);
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}
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} else {
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for (; argc--; argv++) {
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sendstr(fd, *argv);
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if (argc != 0)
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sti(fd, ' ');
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}
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}
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(void)close(fd);
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return 0;
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}
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