Simulation Of DNS Client in Network LAP C Language Programming

Source code DNC client programming in C Language
#include<stdio.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<arpa/inet.h>
#include<netinet/in.h>
#include<unistd.h>
#define SER_PORT 8013
int main(int count,char *argv[])
{
int a;
int clisock,x,b,c;
char str[25],host[25];
char str2[25];
struct sockaddr_in cliaddr;
cliaddr.sin_port=htons(SER_PORT);
cliaddr.sin_family=AF_INET;
cliaddr.sin_addr.s_addr=inet_addr(argv[1]);
clisock=socket(AF_INET,SOCK_STREAM,0);
if(clisock<0)
{
perror("\n no socket");
exit(0);
}
if((x=connect(clisock,(struct sockaddr*)&cliaddr,sizeof(cliaddr)))<0)
{
perror("\n no connect");
exit(0);
}
printf("enter domain name");
scanf("%s",host);
write(clisock,host,strlen(host)+1);
read(clisock,str2,sizeof(str2));
printf("%s\n",str2);
close(clisock);
return 0;
}
Output DNS client
[linux28@localhost network]$cc dnsclient.c
[linux28@localhost network]$./a.out 192.168.1.111
Enter domain name:localhost
127.0.0.1