MINOR: sock: distinguish dgram from stream types when retrieving old sockets
For now we still don't retrieve dgram sockets, but the code must be able
to distinguish them before we switch to receivers. This adds a new flag
to the xfer_sock_list indicating that a socket is of type SOCK_DGRAM. The
way to set the flag for now is by looking at the dummy address family which
equals AF_CUST_UDP{4,6} in this case (given that other dgram sockets are not
yet supported).
diff --git a/include/haproxy/sock-t.h b/include/haproxy/sock-t.h
index 7d66d19..1a49dfa 100644
--- a/include/haproxy/sock-t.h
+++ b/include/haproxy/sock-t.h
@@ -29,6 +29,7 @@
#define SOCK_XFER_OPT_FOREIGN 0x000000001
#define SOCK_XFER_OPT_V6ONLY 0x000000002
+#define SOCK_XFER_OPT_DGRAM 0x000000004
/* The list used to transfer sockets between old and new processes */
struct xfer_sock_list {