[CRIU] [PATCH] net: Don't fail if there is no ip dump data

[Cyrill Gorcunov]

If we met empy file just continue execution.

Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
---
 net.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/net.c b/net.c
index 444f78e..33bd857 100644
--- a/net.c
+++ b/net.c
@@ -13,6 +13,9 @@
 #include "crtools.h"
 #include "sk-inet.h"
 
+#include <sys/types.h>
+#include <sys/stat.h>
+
 #include "protobuf.h"
 #include "protobuf/netdev.pb-c.h"
 
@@ -320,6 +323,18 @@ static int restore_ip_dump(int type, int pid, char *cmd)
 
 	ret = fd = open_image_ro(type, pid);
 	if (fd >= 0) {
+		struct stat st;
+
+		if (fstat(fd, &st)) {
+			pr_perror("Failed to obtain stat on file\n");
+			return -1;
+		} else if (st.st_size == 0) {
+			/*
+			 * Empty file, just get out.
+			 */
+			return 0;
+		}
+
 		ret = run_ip_tool(cmd, "restore", fd, -1);
 		close(fd);
 	}
-- 
1.8.1.4