From: Roy Marples <roy@marples.name>
Date: Sat, 11 Jul 2009 07:03:23 +0000 (+0000)
Subject: Use ssize_t which is a signed int and test if read() returns -1.
X-Git-Tag: v5.0.7~16
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e8dcac713baa5074d800cdeb571c8fb74d6fab1e;p=thirdparty%2Fdhcpcd.git

Use ssize_t which is a signed int and test if read() returns -1.
---

diff --git a/signals.c b/signals.c
index f5c67ed5..07dfbfeb 100644
--- a/signals.c
+++ b/signals.c
@@ -67,11 +67,11 @@ signal_read(void)
 {
 	int sig = -1;
 	char buf[16];
-	size_t bytes;
+	ssize_t bytes;
 
 	memset(buf, 0, sizeof(buf));
 	bytes = read(signal_pipe[0], buf, sizeof(buf));
-	if (bytes >= sizeof(sig))
+	if (bytes >= 0 && bytes >= sizeof(sig))
 		memcpy(&sig, buf, sizeof(sig));
 	return sig;
 }