Feature: 19.04 part-2DMM-2

Change-Id: I0b52a6bb67c25c7955d58e29eb81a3cc9efea9e9
Signed-off-by: sharath reddy <bs.reddy@huawei.com>

1 files changed, 54 insertions, 0 deletions

diff --git a/demo/nginx_proxy/demo-2/udpserver.c b/demo/nginx_proxy/demo-2/udpserver.c
new file mode 100644
index 0000000..dfea2f2
--- /dev/null
+++ b/demo/nginx_proxy/demo-2/udpserver.c
@@ -0,0 +1,54 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+#define PORT     53
+#define MAXLINE 1024
+
+int main()
+{
+    int sockfd;
+    char buffer[MAXLINE];
+    char *hello = "Hello from server";
+
+    struct sockaddr_in servaddr, cliaddr;
+    char name[128] = { 0 };
+
+    // Creating socket file descriptor
+    if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
+    {
+        perror("socket creation failed");
+        exit(EXIT_FAILURE);
+    }
+
+    memset(&servaddr, 0, sizeof(servaddr));
+    memset(&cliaddr, 0, sizeof(cliaddr));
+
+    // Filling server information
+    servaddr.sin_family = AF_INET;      // IPv4
+    servaddr.sin_addr.s_addr = inet_addr("182.167.50.30");
+    servaddr.sin_port = htons(PORT);
+
+    if (bind(sockfd, (const struct sockaddr *) &servaddr,
+             sizeof(servaddr)) < 0)
+    {
+        perror("bind failed");
+        exit(EXIT_FAILURE);
+    }
+
+    int len, n;
+    n = recvfrom(sockfd, (char *) buffer, MAXLINE,
+                 MSG_WAITALL, (struct sockaddr *) &cliaddr, &len);
+    buffer[n] = '\0';
+    (void) gethostname(name, 127);
+    printf("Client : %s \n", buffer);
+    sendto(sockfd, (const char *) hello, strlen(hello),
+           MSG_CONFIRM, (const struct sockaddr *) &cliaddr, len);
+    printf("%s\n", hello);
+    return 0;
+}