Bug#933677: Non-conformant value of "Maximum DHCP Message Size" option

[ltspro2]

I suggest applying the attached patch.
--- dhcp.c	2019-07-30 00:00:00.000000000 +0000
+++ dhcp.c	2019-08-12 00:00:00.000000000 +0000
@@ -1263,7 +1263,8 @@ static void buildRequest(struct bootpReq
 
     addClientIdentifier(flags, req);
 
-    aShort = ntohs(sizeof(struct bootpRequest));
+    aShort = htons(sizeof(struct iphdr) + sizeof(struct udphdr) +
+		   sizeof(struct bootpRequest));
     addVendorCode(req, DHCP_OPTION_MAXSIZE, 2, &aShort);
 
     numOptions = 0;