[PATCH 4/5] daemon.c service_loop(): replace signal() with sigaction()

[Jeremiah Mahler <jmmahler@xxxxxxxxx>]

>From signal(2)

  The behavior of signal() varies across UNIX versions, and has also var‐
  ied historically across different versions of Linux.   Avoid  its  use:
  use sigaction(2) instead.  See Portability below.

Replaced signal() with sigaction() in daemon.c service_loop()

Signed-off-by: Jeremiah Mahler <jmmahler@xxxxxxxxx>
---
 daemon.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/daemon.c b/daemon.c
index 3c48dc0..8c28b3d 100644
--- a/daemon.c
+++ b/daemon.c
@@ -1002,6 +1002,7 @@ static int service_loop(struct socketlist *socklist)
 {
 	struct pollfd *pfd;
 	int i;
+	struct sigaction sa;
 
 	pfd = xcalloc(socklist->nr, sizeof(struct pollfd));
 
@@ -1010,7 +1011,9 @@ static int service_loop(struct socketlist *socklist)
 		pfd[i].events = POLLIN;
 	}
 
-	signal(SIGCHLD, child_handler);
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_handler = child_handler;
+	sigaction(SIGCHLD, &sa, 0);
 
 	for (;;) {
 		int i;
-- 
2.0.0.rc4.6.g127602c

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