From: Serge Hallyn <serge.hallyn@ubuntu.com>
Date: Thu, 25 Apr 2013 00:59:10 +0000 (-0500)
Subject: monitor.c: sanity check on waitpid return value
X-Git-Tag: lxc-1.0.0.alpha1~1^2~263
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b7916695264238a490971e8cd87612154fc18b1;p=thirdparty%2Flxc.git

monitor.c: sanity check on waitpid return value

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
---

diff --git a/src/lxc/monitor.c b/src/lxc/monitor.c
index 0521e9ab3..5d655bd1a 100644
--- a/src/lxc/monitor.c
+++ b/src/lxc/monitor.c
@@ -207,7 +207,8 @@ int lxc_monitord_spawn(const char *lxcpath)
 	}
 
 	if (pid1) {
-		waitpid(pid1, NULL, 0);
+		if (waitpid(pid1, NULL, 0) != pid1)
+			SYSERROR("unexpected waitpid return value on double-fork");
 		return 0;
 	}