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[openssh] 02/05: upstream: In waitfd(), when poll returns early we are subtracting
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dtucker pushed a commit to branch master
in repository openssh.

commit 5339ab369c225b40bc64d5ec3374f5c91b3ad609
Author: dtucker@openbsd.org <dtucker@openbsd.org>
Date: Fri Jan 15 02:32:41 2021 +0000

upstream: In waitfd(), when poll returns early we are subtracting

the elapsed time from the timeout each loop, so we only want to measure the
elapsed time the poll() in that loop, not since the start of the function.
Spotted by chris.xj.zhu at gmail.com, ok djm@

OpenBSD-Commit-ID: 199df060978ee9aa89b8041a3dfaf1bf7ae8dd7a
---
misc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/misc.c b/misc.c
index a4a3f2e2..7aad1b5d 100644
--- a/misc.c
+++ b/misc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: misc.c,v 1.158 2021/01/11 02:12:57 dtucker Exp $ */
+/* $OpenBSD: misc.c,v 1.159 2021/01/15 02:32:41 dtucker Exp $ */
/*
* Copyright (c) 2000 Markus Friedl. All rights reserved.
* Copyright (c) 2005-2020 Damien Miller. All rights reserved.
@@ -297,10 +297,10 @@ waitfd(int fd, int *timeoutp, short events)
struct timeval t_start;
int oerrno, r;

- monotime_tv(&t_start);
pfd.fd = fd;
pfd.events = events;
for (; *timeoutp >= 0;) {
+ monotime_tv(&t_start);
r = poll(&pfd, 1, *timeoutp);
oerrno = errno;
ms_subtract_diff(&t_start, timeoutp);

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