>Number:         12048
>Category:       kern
>Synopsis:       interrupted TIOCSETAW returns with ENOTTY
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jan 26 04:46:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     
>Release:        1.4.1, 1.5, 1.5K, 1.5Q
>Organization:
	Internet Initiative Japan Inc.
>Environment:
System: NetBSD rtinit.iij.ad.jp 1.5K NetBSD 1.5K (RTINIT) #20: Fri Nov 24 04:43:17 JST 2000 root@rtinit.iij.ad.jp:/var/sources/src/sys/arch/i386/compile/RTINIT i386
Architecture: i386
Machine: i386
>Description:
	Interrupted TIOCSETAW returns with ENOTTY
	when SIGINT handler is installed.

>How-To-Repeat:
	Configure the host as a serial-console terminal(9600bps),
	and login on its serial console.
	Execute following program and type Ctrl-C when you see "Fire!"

--
#include <stdio.h>
#include <errno.h>
#include <signal.h>
#include <termios.h>

void intr(int);
int main(int, char **);

void
intr(int signo)
{
}

int
main(int ac, char **av)
{
	int rv;
	int i;

	siginterrupt(SIGINT, 0);
	signal(SIGINT, intr);

	for( i = 0; i < 20; i++ ){
		printf(
		 "012345678901234567890123456789"
		 "012345678901234567890123456789"
		 "0123456789\n");
		if( i == 16 )
			printf("Fire!\n");
	}

	rv = tcdrain(1);
	if( rv == -1 )
		printf("tcdrain() = %d, errno = %d\n", rv, errno);
	else
		printf("tcdrain() = %d\n", rv);

	printf("done\n");

	return 0;
}
--

>Fix:
	problem has been already fixed in FreeBSD:

	http://docs.freebsd.org/cgi/getmsg.cgi?fetch=101758+0+archive/1997/cvs-sys/19971130.cvs-sys
	http://docs.freebsd.org/cgi/getmsg.cgi?fetch=106385+0+archive/1997/cvs-sys/19971130.cvs-sys
>Release-Note:
>Audit-Trail:
>Unformatted: