From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Thu, 10 Dec 2015 15:10:31 +0000 (+0100)
Subject: privops: ignore signals in helper
X-Git-Tag: 2.3-pre1~57
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8e327bb0a3e215da81a8f213845f3c0652cb8d44;p=thirdparty%2Fchrony.git

privops: ignore signals in helper

If the whole process group receives a signal (e.g. CTRL-C in terminal),
the helper process needs to keep running until it gets the QUIT request,
so the system drivers can still use it in their finalisation, e.g. to
cancel remaining slew.
---

diff --git a/privops.c b/privops.c
index cd591e1a..c084ac5e 100644
--- a/privops.c
+++ b/privops.c
@@ -520,6 +520,9 @@ PRV_StartHelper(void)
         close(fd);
     }
 
+    /* ignore signals, the process will exit on OP_QUIT request */
+    UTI_SetQuitSignalsHandler(SIG_IGN);
+
     helper_main(sock_pair[1]);
 
   } else {