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Print poll(2) errno

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Distinguish between return values -1 (errno set) and 0.

OK kettenis
This commit is contained in:
kn 2022-07-27 19:42:22 +00:00
parent 0b0cc6ed28
commit a70f65817d
1 changed files with 5 additions and 3 deletions
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8
usr.sbin/ldomd/ds.c
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@ -1,4 +1,4 @@
/* $OpenBSD: ds.c,v 1.11 2021/10/24 21:24:18 deraadt Exp $ */
/* $OpenBSD: ds.c,v 1.12 2022/07/27 19:42:22 kn Exp $ */
/*
* Copyright (c) 2012 Mark Kettenis
@ -741,8 +741,10 @@ ds_conn_serve(void)
while (1) {
nfds = poll(pfd, num_ds_conns, -1);
if (nfds == -1 || nfds == 0)
errx(1, "poll");
if (nfds == -1)
err(1, "poll");
if (nfds == 0)
errx(1, "poll timeout");
TAILQ_FOREACH(dc, &ds_conns, link) {
if (pfd[dc->id].revents)