proper freebsd support for djb's nacl-20110221

freebsd-compat.patch

Only in nacl-20110221-patched: build
diff -aur nacl-20110221/curvecp/socket_bind.c nacl-20110221-patched/curvecp/socket_bind.c
--- nacl-20110221/curvecp/socket_bind.c	2011-02-21 01:49:34.000000000 +0000
+++ nacl-20110221-patched/curvecp/socket_bind.c	2011-06-09 16:50:33.000000000 +0000
@@ -9,6 +9,7 @@
 {
   struct sockaddr_in sa;
   byte_zero(&sa,sizeof sa);
+  sa.sin_family = PF_INET;
   byte_copy(&sa.sin_addr,4,ip);
   byte_copy(&sa.sin_port,2,port);
   return bind(fd,(struct sockaddr *) &sa,sizeof sa);
diff -aur nacl-20110221/curvecp/socket_udp.c nacl-20110221-patched/curvecp/socket_udp.c
--- nacl-20110221/curvecp/socket_udp.c	2011-02-21 01:49:34.000000000 +0000
+++ nacl-20110221-patched/curvecp/socket_udp.c	2011-06-09 16:50:18.000000000 +0000
@@ -6,6 +6,10 @@
 #include "socket.h"
 #include "blocking.h"
 
+#ifndef SOL_IP
+#define SOL_IP IPPROTO_IP
+#endif
+
 static void enable_bsd_fragmentation(int fd)
 {
 #ifdef IP_DONTFRAG