dist intro client/server code

dist-intro/client.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include "udp.h"
+
+#define BUFFER_SIZE (1000)
+
+// client code
+int main(int argc, char *argv[]) {
+    struct sockaddr_in addrSnd, addrRcv;
+
+    int sd = UDP_Open(20000);
+    int rc = UDP_FillSockAddr(&addrSnd, "localhost", 10000);
+
+    char message[BUFFER_SIZE];
+    sprintf(message, "hello world");
+
+    printf("client:: send message [%s]\n", message);
+    rc = UDP_Write(sd, &addrSnd, message, BUFFER_SIZE);
+    if (rc < 0) {
+	printf("client:: failed to send\n");
+	exit(1);
+    }
+
+    printf("client:: wait for reply...\n");
+    rc = UDP_Read(sd, &addrRcv, message, BUFFER_SIZE);
+    printf("client:: got reply [size:%d contents:(%s)\n", rc, message);
+    return 0;
+}
+