Untitled

include<stdio.h>
#include<string.h>
#include<time.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<arpa/inet.h>
#include<unistd.h>
#include<stdlib.h>
void main()
{
char *ip="127.0.0.100";
int port=5555,x=0;
int sockfd;
struct sockaddr_in server_addr,client_addr;
char buffer[1024];
socklen_t addr_size;
int n;
sockfd=socket(AF_INET,SOCK_DGRAM,0);
if(sockfd<0)
{
perror("[-]Socket error");
exit(1);
}
memset(&server_addr,'\0',sizeof(server_addr));
server_addr.sin_family=AF_INET;
server_addr.sin_port=htons(port);
server_addr.sin_addr.s_addr=inet_addr(ip);
n=bind(sockfd,(struct sockaddr*)&server_addr,sizeof(server_addr));
if(n<0)
{
perror("[-]Bind error");
exit(1);
}
while(1)
{
bzero(buffer,1024);
addr_size=sizeof(client_addr);
recvfrom(sockfd,buffer,1024,0,(struct sockaddr*)&client_addr,&addr_size);
if(atoi(buffer)!=x)
printf("Server:Recieved packet %s\n",buffer);
else
printf("Server: Recieved packet %s(duplicate)\n",buffer);
x=atoi(buffer);
//strcpy(var,buffer);
sleep(1);
if(rand()%2==0)
{
fprintf("server sending acknowledgement from packet %s\n",buffer);
sendto(sockfd,buffer,1024,0,(struct sockaddr*)&client_addr,sizeof(client_addr));
}
}
}