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File:  [cvs.NetBSD.org] / pkgsrc / net / parpd / patches / Attic / patch-parpd.c
Revision 1.1: download - view: text, annotated - select for diffs
Mon Jun 26 09:59:16 2017 UTC (7 years, 8 months ago) by manu
Branches: MAIN
CVS tags: pkgsrc-2023Q1-base, pkgsrc-2023Q1, pkgsrc-2022Q4-base, pkgsrc-2022Q4, pkgsrc-2022Q3-base, pkgsrc-2022Q3, pkgsrc-2022Q2-base, pkgsrc-2022Q2, pkgsrc-2022Q1-base, pkgsrc-2022Q1, pkgsrc-2021Q4-base, pkgsrc-2021Q4, pkgsrc-2021Q3-base, pkgsrc-2021Q3, pkgsrc-2021Q2-base, pkgsrc-2021Q2, pkgsrc-2021Q1-base, pkgsrc-2021Q1, pkgsrc-2020Q4-base, pkgsrc-2020Q4, pkgsrc-2020Q3-base, pkgsrc-2020Q3, pkgsrc-2020Q2-base, pkgsrc-2020Q2, pkgsrc-2020Q1-base, pkgsrc-2020Q1, pkgsrc-2019Q4-base, pkgsrc-2019Q4, pkgsrc-2019Q3-base, pkgsrc-2019Q3, pkgsrc-2019Q2-base, pkgsrc-2019Q2, pkgsrc-2019Q1-base, pkgsrc-2019Q1, pkgsrc-2018Q4-base, pkgsrc-2018Q4, pkgsrc-2018Q3-base, pkgsrc-2018Q3, pkgsrc-2018Q2-base, pkgsrc-2018Q2, pkgsrc-2018Q1-base, pkgsrc-2018Q1, pkgsrc-2017Q4-base, pkgsrc-2017Q4, pkgsrc-2017Q3-base, pkgsrc-2017Q3, pkgsrc-2017Q2-base, pkgsrc-2017Q2, HEAD
Fix kqueue usage when forking in the background

This restores parpd functionnality on NetBSD 7.x
Submitted upstream as https://dev.marples.name/T127

$NetBSD: patch-parpd.c,v 1.1 2017/06/26 09:59:16 manu Exp $

Submitted upstream as https://dev.marples.name/T127

From 63d9d122d83dc358c6180d52187026f099ab6389 Mon Sep 17 00:00:00 2001
From: Emmanuel Dreyfus <manu@netbsd.org>
Date: Mon, 26 Jun 2017 11:38:39 +0200
Subject: [PATCH] Fix kqueue usage when forking in the background

NetBSD's kqueue(2) man page says "The queue is not inherited by a
child created with fork(2)", which means the poll_fd needs to be
reopen after forking in the background.

This is done by calling eloop_requeue() after daemon().
---
 parpd.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git parpd.c parpd.c
index a178696..dbf26c4 100644
--- parpd.c
+++ parpd.c
@@ -718,9 +718,17 @@ main(int argc, char **argv)
 		goto out;
 	}
 
-	if (!fflag && daemon(0, 0) == -1) {
-		syslog(LOG_ERR, "daemon: %m");
-		goto out;
+	if (!fflag) {
+		if (daemon(0, 0) == -1) {
+			syslog(LOG_ERR, "daemon: %m");
+			goto out;
+		}
+
+		/* At least for kqueue, poll_fd gets invalidated by fork */
+                if (eloop_requeue(eloop) == -1) {
+                        syslog(LOG_ERR, "eloop_requeue after fork: %m");
+                        goto out;
+                }
 	}
 
 	opt = eloop_start(eloop, &sigset);
-- 
2.11.0
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