Date: Sun, 7 May 2017 17:21:23 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r317909 - head/usr.bin/resizewin Message-ID: <201705071721.v47HLNWB049018@repo.freebsd.org>
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Author: trasz Date: Sun May 7 17:21:22 2017 New Revision: 317909 URL: https://svnweb.freebsd.org/changeset/base/317909 Log: Make resizewin(1) discard the terminal queues, to lower the chance 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 Modified: head/usr.bin/resizewin/resizewin.c Modified: head/usr.bin/resizewin/resizewin.c ============================================================================== --- head/usr.bin/resizewin/resizewin.c Sun May 7 14:59:45 2017 (r317908) +++ head/usr.bin/resizewin/resizewin.c Sun May 7 17:21:22 2017 (r317909) @@ -52,7 +52,7 @@ main(__unused int argc, __unused char ** { 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 ** 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;
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