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Make resizewin(1) discard the terminal queues, to lower the chance

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for "unable to parse response" error which happens when youre typing
too fast for the machine you're running it on.

Reviewed by:	cem, Daniel O'Connor <darius@dons.net.au>
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D10624
This commit is contained in:
Edward Tomasz Napierala 2017-05-07 17:21:22 +00:00
parent 215b29f62c
commit 7ffc8a5418
1 changed files with 7 additions and 1 deletions
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8
usr.bin/resizewin/resizewin.c
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@ -52,7 +52,7 @@ main(__unused int argc, __unused char **argv)
{
struct termios old, new;
struct winsize w;
int ret, fd, cnt, error;
int ret, fd, cnt, error, what;
char data[20];
struct timeval then, now;
@ -71,6 +71,12 @@ main(__unused int argc, __unused char **argv)
if (tcsetattr(fd, TCSANOW, &new) == -1)
exit(1);
/* Discard input received so far */
what = FREAD | FWRITE;
error = ioctl(fd, TIOCFLUSH, &what);
if (error != 0)
warn("ioctl");
if (write(fd, query, sizeof(query)) != sizeof(query)) {
error = 1;
goto out;