dist intro client/server code

dist-intro/udp.h

@@ -0,0 +1,39 @@
+#ifndef __UDP_h__
+#define __UDP_h__
+
+//
+// includes
+// 
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <netdb.h>
+#include <fcntl.h>
+#include <assert.h>
+
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/types.h>
+
+#include <netinet/tcp.h>
+#include <netinet/in.h>
+
+//
+// prototypes
+// 
+
+int UDP_Open(int port);
+int UDP_Close(int fd);
+
+int UDP_Read(int fd, struct sockaddr_in *addr, char *buffer, int n);
+int UDP_Write(int fd, struct sockaddr_in *addr, char *buffer, int n);
+
+int UDP_FillSockAddr(struct sockaddr_in *addr, char *hostName, int port);
+
+#endif // __UDP_h__
+