lib: don't copy more than the buffer size

CID 1141012 (#1 of 1): Copy into fixed size buffer (STRING_OVERFLOW)
2. fixed_size_dest: You might overrun the 108 byte fixed-size string
"addr.sun_path" by copying "service_address" without checking the
length.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

lib/criu.c

@@ -161,7 +161,7 @@ static int criu_connect(void)
 	memset(&addr, 0, sizeof(addr));
 	addr.sun_family = AF_LOCAL;
 
-	strcpy(addr.sun_path, service_address);
+	strncpy(addr.sun_path, service_address, sizeof(addr.sun_path));
 
 	addr_len = strlen(addr.sun_path) + sizeof(addr.sun_family);