picotcp udp updates

tests/api_test/udpserver4.c

@@ -11,7 +11,7 @@
 
 #define MAXBUF 1024*1024
 
-void echo( int sd ) {
+void echo(int sock) {
   char bufin[MAXBUF];
   struct sockaddr_in remote;
   int n;
@@ -19,10 +19,11 @@ void echo( int sd ) {
   long count = 0;
 
   while (1) {
-    usleep(50);
+    sleep(1);
+    //usleep(50);
     count++;
     // read a datagram from the socket (put result in bufin)
-    n=recvfrom(sd,bufin,MAXBUF,0,(struct sockaddr *)&remote,&len);
+    n=recvfrom(sock,bufin,MAXBUF,0,(struct sockaddr *)&remote,&len);
     // print out the address of the sender
     printf("DGRAM from %s:%d\n", inet_ntoa(remote.sin_addr), ntohs(remote.sin_port));
 
@@ -31,7 +32,8 @@ void echo( int sd ) {
     } else {
       printf("GOT %d BYTES (count = %ld)\n", n, count);
       // Got something, just send it back
-      // sendto(sd,bufin,n,0,(struct sockaddr *)&remote,len);
+      // sendto(sock,bufin,n,0,(struct sockaddr *)&remote,len);
+      printf("RX = %s\n", bufin);
     }
   }
 }
@@ -42,13 +44,13 @@ int main(int argc, char *argv[]) {
     printf("usage: udp_server <port>\n");
     return 0;
   }
-  int ld, port = atoi(argv[1]);
+  int sock, port = atoi(argv[1]);
   socklen_t len;
   struct sockaddr_in skaddr;
   struct sockaddr_in skaddr2;
 
   // Create socket
-  if ((ld = socket( PF_INET, SOCK_DGRAM, 0)) < 0) {
+  if ((sock = socket( PF_INET, SOCK_DGRAM, 0)) < 0) {
     printf("error creating socket\n");
     return 0;
   }
@@ -57,17 +59,18 @@ int main(int argc, char *argv[]) {
   skaddr.sin_addr.s_addr = htonl(INADDR_ANY);
   skaddr.sin_port = htons(port);
   // Bind to address
-  if (bind(ld, (struct sockaddr *) &skaddr, sizeof(skaddr))<0) {
+  if (bind(sock, (struct sockaddr *) &skaddr, sizeof(skaddr))<0) {
     printf("error binding\n");
     return 0;
   }
   // find out what port we were assigned
   len = sizeof( skaddr2 );
-  if (getsockname(ld, (struct sockaddr *) &skaddr2, &len)<0) {
-    printf("error getsockname\n");
-    return 0;
-  }
+  //if (getsockname(sock, (struct sockaddr *) &skaddr2, &len)<0) {
+  //  printf("error getsockname\n");
+  //  return 0;
+  //}
   // Display address:port to verify it was sent over RPC correctly
+  /*
   port = ntohs(skaddr2.sin_port);
   int ip = skaddr2.sin_addr.s_addr;
   unsigned char d[4];
@@ -76,8 +79,8 @@ int main(int argc, char *argv[]) {
   d[2] = (ip >> 16) & 0xFF;
   d[3] = (ip >> 24) & 0xFF;
   printf("bound to address: %d.%d.%d.%d : %d\n", d[0],d[1],d[2],d[3], port);
-          
+  */        
   // RX
-  echo(ld);
+  echo(sock);
   return(0);
 }