updated

tests/intercept/udp_client.c

@@ -0,0 +1,74 @@
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <sys/socket.h>
+#include <stdio.h>
+#include <unistd.h>
+
+
+int main()
+{
+    printf("cpp_udp_socket_client_test():\n");
+    ssize_t n_sent;
+    int sock = -1;
+    struct sockaddr_in server;
+    char buf[64];
+
+    if(sock == -1) {
+        sock = socket(AF_INET , SOCK_DGRAM , 0);
+        if (sock == -1) {
+            printf("error creating socket\n");
+            return 1;
+        }
+    }
+    server.sin_addr.s_addr = inet_addr("10.5.5.47");
+    server.sin_family = AF_INET;
+    server.sin_port = htons(8888);
+
+    //char *buf = "Welcome to the Machine\n";
+    memcpy(buf, "Welcome to the Machine", sizeof("Welcome to the Machine"));
+
+    printf("sizeof(buf) = %d\n", sizeof(buf));
+    if (connect(sock , (struct sockaddr *)&server , sizeof(server)) < 0) {
+        printf("api_test: error while connecting.\n");
+        return 1;
+    }
+
+    // Repeatedly send UDP datagram
+    char data[1024];
+    memset(data, 0, sizeof(data));
+    int count =0;
+    while(1)
+    {
+      count++;
+      usleep(1000);
+      n_sent = send(sock,data,sizeof(data),0);
+
+      if (n_sent < 0) {
+          perror("Problem sending data");
+          return 1;
+      }
+      if (n_sent != sizeof(buf))
+          printf("sendto sent %d bytes\n",(int)n_sent);
+      printf("n_sent = %d, count = %d\n", n_sent,count);
+    }
+    return 1;
+
+
+    socklen_t recv_addr_len;
+    // Clear address info for RX test
+    server.sin_addr.s_addr = inet_addr("");
+    server.sin_port = htons(-1);
+
+    while (1) {
+        n_sent=recvfrom(sock,buf,sizeof(buf),0,(struct sockaddr *)&server,&recv_addr_len);
+        printf("Got a datagram from %s port %d\n", inet_ntoa(server.sin_addr), ntohs(server.sin_port));
+        if (n_sent<0) {
+            perror("Error receiving data");
+        }
+        else {
+            printf("RXed: %s\n", buf);
+        }
+    }
+    return 1;
+}