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partial sync of regress/netcat.c with upstream 

Check for short writes in fdpass(). Clean up while at it.

ok djm
This commit is contained in:
tobias 2015-03-26 10:36:03 +00:00 committed by Damien Miller
parent e18435fec1
commit bf3893dddd
1 changed files with 3 additions and 3 deletions
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6
regress/netcat.c
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@ -1,4 +1,4 @@
/* $OpenBSD: netcat.c,v 1.127 2015/02/14 22:40:22 jca Exp $ */
/* $OpenBSD: netcat.c,v 1.128 2015/03/26 10:36:03 tobias Exp $ */
/*
* Copyright (c) 2001 Eric Jackson <ericj@monkey.org>
*
@ -1034,17 +1034,17 @@ fdpass(int nfd)
bzero(&pfd, sizeof(pfd));
pfd.fd = STDOUT_FILENO;
pfd.events = POLLOUT;
for (;;) {
r = sendmsg(STDOUT_FILENO, &msg, 0);
if (r == -1) {
if (errno == EAGAIN || errno == EINTR) {
pfd.events = POLLOUT;
if (poll(&pfd, 1, -1) == -1)
err(1, "poll");
continue;
}
err(1, "sendmsg");
} else if (r == -1)
} else if (r != 1)
errx(1, "sendmsg: unexpected return value %zd", r);
else
break;