1 files changed, 28 insertions, 0 deletions
diff --git a/common.h b/common.h
new file mode 100644
index 0000000..5ce3c61
--- /dev/null
+++ b/common.h
@@ -0,0 +1,28 @@
+#ifndef UDP_BROADCAST_COMMON
+#define UDP_BROADCAST_COMMON
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+/* the port users will be connecting to */
+#define SERVERPORT 4950
+#define SERVERPORT_S "4950"
+
+/* RFC 2460 requires IPv6 link MTU >= 1280, IPv6 UDP headers sum up to
+   48 byte, the rest is for us. One extra byte is for the final \0
+   (not transmitted) */
+#define MAXBUFLEN 1233
+
+#define ENP(Cmd, Msg) \
+  if ((Cmd) == -1) {		\
+    perror(Msg);		\
+    exit(1);			\
+  }
+
+#endif // UDP_BROADCAST_COMMON