X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=nwho.h;h=69bc7a469b5ea3bc8aceca1dd4541b34487cb326;hb=04cb4ed3a6cfb676cac7c8ea35f0f4ccc43b7121;hp=1c22c54f4e611b14768e0b6e7e49d9b4509d0dad;hpb=6f436fe1021f801f29cee16af7f75358673374bc;p=nwho.git

diff --git a/nwho.h b/nwho.h
index 1c22c54..69bc7a4 100644
--- a/nwho.h
+++ b/nwho.h
@@ -5,6 +5,7 @@
  */
 
 #include <inttypes.h>
+#include <netinet/in.h>
 
 typedef uint32_t u32;
 
@@ -40,3 +41,12 @@ struct nwho_pkt {
 
 #define STRINGIFY(x) STRINGIFY2(x)
 #define STRINGIFY2(x) #x
+
+static inline int nwho_pkt_size(struct nwho_pkt *pkt)
+{
+  return sizeof(struct nwho_pkt) - (MAX_USERS - ntohl(pkt->num_users))*sizeof(struct userinfo);
+}
+
+/* util.c */
+
+void die(char *msg, ...) __attribute__((noreturn));