From: Aki Tuomi <aki.tuomi@dovecot.fi>
Date: Mon, 24 Oct 2016 07:08:42 +0000 (+0300)
Subject: lib: Ensure tv_r gets set in io_loop_get_wait_time
X-Git-Tag: 2.2.26~58
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4fd7c077a14c985e710fccdb1fabc9e4c83de761;p=thirdparty%2Fdovecot%2Fcore.git

lib: Ensure tv_r gets set in io_loop_get_wait_time

If this does not get reset here to 0 it can cause
errors or unpredictable behaviour in select/kqueue
polling, such as very long delays.
---

diff --git a/src/lib/ioloop.c b/src/lib/ioloop.c
index 3a948af4bb..2a12d9c7ee 100644
--- a/src/lib/ioloop.c
+++ b/src/lib/ioloop.c
@@ -422,6 +422,8 @@ int io_loop_get_wait_time(struct ioloop *ioloop, struct timeval *tv_r)
 		if (gettimeofday(&tv_now, NULL) < 0)
 			i_fatal("gettimeofday(): %m");
 		msecs = 0;
+		tv_r->tv_sec = 0;
+		tv_r->tv_usec = 0;
 	} else {
 		tv_now.tv_sec = 0;
 		msecs = timeout_get_wait_time(timeout, tv_r, &tv_now);