--- tinyproxy-1.9.0/src/transparent-proxy.c	2017-05-05 14:07:12.242902301 +1000
+++ tinyproxy-1.9.0-p1/src/transparent-proxy.c	2017-05-05 16:23:12.707980943 +1000
@@ -32,6 +32,12 @@
 #include "text.h"
 #include "conf.h"
 
+# if	defined(__linux__)
+/* 
+// The only place SO_ORIGINAL_DST (80) is defined as addendum by Rusty R.
+*/
+#	include	<linux/netfilter_ipv4.h>
+# endif
 /*
  * Build a URL from parts.
  */
@@ -65,10 +71,14 @@
         length = hashmap_entry_by_key (hashofheaders, "host", (void **) &data);
         if (length <= 0) {
                 struct sockaddr_in dest_addr;
-
+# if	defined(__linux__)
+		length	= sizeof (dest_addr); /* This is needed!! */
+		if (getsockopt (connptr->client_fd, SOL_IP, SO_ORIGINAL_DST, (char *)&dest_addr, &length) < 0) {
+# else
                 if (getsockname
                     (connptr->client_fd, (struct sockaddr *) &dest_addr,
                      &length) < 0) {
+# endif
                         log_message (LOG_ERR,
                                      "process_request: cannot get destination IP for %d",
                                      connptr->client_fd);