Hello
I want to send a dns packet to a dns server. I've already connected to the dns server but not able to send the packet in the right wy. Actually I don't know how to send? Here's the code..
#include <winsock.h>
#include<stdio.h>
#include<string.h>
#include <io.h>
#include <sys/stat.h>
int main()
{
WSADATA wsaData;
if (WSAStartup(MAKEWORD(1, 1), &wsaData) != 0) {
fprintf(stderr, "WSAStartup failed.\n");
exit(1);
}
int sock;
struct sockaddr_in serv_addr;
sock = socket(AF_INET,SOCK_DGRAM,0);
if(sock == -1){
printf("Error creating socket");
}
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(53);
serv_addr.sin_addr.s_addr = inet_addr("208.67.222.222");//Notice that inet_addr() returns the address in Network Byte Order already–you don’t have to call htonl()
//bzero(&(serv_addr.sin_zero),8);
int i= connect(sock, (struct sockaddr*)& serv_addr, sizeof(struct sockaddr));
if(i==-1) {
printf("nahhhhh");
}
else{
printf("Connection Established\n");
}
char *send_data, recv_data[1024];
send_data="00020100000100000000000003706F7064026978066E6574636F6D03636F6D0000010001"; //dns header and dns messages concatinated
printf("send_data is: %s\n", send_data);
send(sock, send_data, strlen(send_data), 0); // send data to server
if(strcmp(send_data, "EXIT") == 0) {
printf("%s", "Disconnected!\n\n");
//break;
}
int byte_count = recv(sock,recv_data,1024,0); // receive data from server
recv_data[byte_count] = '\0';
printf("Recieved data is: %s",recv_data);
closesocket(sock);
return 0;
}Kindly help me out...
Regards
