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  GNU nano 4.8                                                                           client.c                                                                           Modified  
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<unistd.h>
#include<arpa/inet.h>
void main()
{
char*ip="127.0.0.1";
int port=5555;
int sock;
struct sockaddr_in addr;
socklen_t addr_size;
char buffer[1024];
int n;
sock=socket(AF_INET,SOCK_STREAM,0);
if (sock<0)
{
perror("[-]socket error");
exit(1);
}
printf("[+]tcp socket is created");
memset(&addr,'\0',sizeof(addr));
addr.sin_family=AF_INET;
addr.sin_port=port;
addr.sin_addr.s_addr=inet_addr(ip);
connect(sock,(struct sockaddr*)&addr,sizeof(addr));
printf("CONNECTED TO THE SERVER");
bzero(buffer,1024);
strcpy(buffer,"HELLO THIS IS client");
printf("client:%s\n",buffer);
send(sock,buffer,sizeof(buffer),0);
printf("server:%s\n",buffer);
close(sock);
printf(" diconnected");
}