mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
127 lines
3.3 KiB
C
127 lines
3.3 KiB
C
/*-
|
|
* Copyright (c) 1992 Christopher G. Demetriou
|
|
* 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.
|
|
* 3. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific written permission.
|
|
*
|
|
* 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 REGENTS 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>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/ioctl.h>
|
|
|
|
static void
|
|
usage()
|
|
{
|
|
fprintf(stderr,
|
|
"usage: comcontrol <filename> [dtrwait <n>] [drainwait <n>]\n");
|
|
exit(1);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int fd;
|
|
int res = 0;
|
|
int print_dtrwait = 1, print_drainwait = 1;
|
|
int dtrwait = -1, drainwait = -1;
|
|
|
|
if (argc < 2)
|
|
usage();
|
|
|
|
if (strcmp(argv[1], "-") == 0)
|
|
fd = STDIN_FILENO;
|
|
else {
|
|
fd = open(argv[1], O_RDONLY|O_NONBLOCK, 0);
|
|
if (fd < 0) {
|
|
warn("couldn't open file %s", argv[1]);
|
|
return 1;
|
|
}
|
|
}
|
|
if (argc == 2) {
|
|
if (ioctl(fd, TIOCMGDTRWAIT, &dtrwait) < 0) {
|
|
print_dtrwait = 0;
|
|
if (errno != ENOTTY) {
|
|
res = 1;
|
|
warn("TIOCMGDTRWAIT");
|
|
}
|
|
}
|
|
if (ioctl(fd, TIOCGDRAINWAIT, &drainwait) < 0) {
|
|
print_drainwait = 0;
|
|
if (errno != ENOTTY) {
|
|
res = 1;
|
|
warn("TIOCGDRAINWAIT");
|
|
}
|
|
}
|
|
if (print_dtrwait)
|
|
printf("dtrwait %d ", dtrwait);
|
|
if (print_drainwait)
|
|
printf("drainwait %d ", drainwait);
|
|
printf("\n");
|
|
} else {
|
|
while (argv[2] != NULL) {
|
|
if (!strcmp(argv[2],"dtrwait")) {
|
|
if (dtrwait >= 0)
|
|
usage();
|
|
if (argv[3] == NULL || !isdigit(argv[3][0]))
|
|
usage();
|
|
dtrwait = atoi(argv[3]);
|
|
argv += 2;
|
|
} else if (!strcmp(argv[2],"drainwait")) {
|
|
if (drainwait >= 0)
|
|
usage();
|
|
if (argv[3] == NULL || !isdigit(argv[3][0]))
|
|
usage();
|
|
drainwait = atoi(argv[3]);
|
|
argv += 2;
|
|
} else
|
|
usage();
|
|
}
|
|
if (dtrwait >= 0) {
|
|
if (ioctl(fd, TIOCMSDTRWAIT, &dtrwait) < 0) {
|
|
res = 1;
|
|
warn("TIOCMSDTRWAIT");
|
|
}
|
|
}
|
|
if (drainwait >= 0) {
|
|
if (ioctl(fd, TIOCSDRAINWAIT, &drainwait) < 0) {
|
|
res = 1;
|
|
warn("TIOCSDRAINWAIT");
|
|
}
|
|
}
|
|
}
|
|
|
|
close(fd);
|
|
return res;
|
|
}
|