[ovs-dev] [PATCH v1] socket-util: Fix recursion issue in sendmmsg

[Zhenyu Gao]

The wrap_sendmmsg has infinite recursion issue.
Fix it by undef sendmmsg.

Signed-off-by: Zhenyu Gao <sysugaozhenyu at gmail.com>
---
 lib/socket-util.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/socket-util.c b/lib/socket-util.c
index de7df67..04401d4 100644
--- a/lib/socket-util.c
+++ b/lib/socket-util.c
@@ -1043,6 +1043,9 @@ sendmmsg(int fd, struct mmsghdr *msgs, unsigned int n, unsigned int flags)
     return emulate_sendmmsg(fd, msgs, n, flags);
 }
 #else
+/* sendmmsg was redefined in lib/socket-util.c, should undef sendmmsg here
+ * to avoid recursion */
+#undef sendmmsg
 int
 wrap_sendmmsg(int fd, struct mmsghdr *msgs, unsigned int n, unsigned int flags)
 {
-- 
1.8.3.1