demo/a/practicle/clientu.c

#include<stdio.h>
#include<netinet/in.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<string.h>
#include<unistd.h>

int main()
{
	int sd,portno,i;
	struct sockaddr_in cli;
	char msg[80],ip[80];
	sd=socket(AF_INET,SOCK_DGRAM,0);
	bzero(&cli,sizeof(cli));
	printf("enter the port no");
	scanf("%d",&portno);
	cli.sin_port=htons(portno);
	cli.sin_family=AF_INET;
	printf("enter the ip address");
	scanf("%s",ip);
	cli.sin_addr.s_addr=inet_addr(ip);
	printf("\nenter the message to send\n");
	scanf("%s",msg);
	sendto(sd,msg,80,0,(struct sockaddr*)&cli,sizeof(cli));
	printf("\nreply from server\n");
	i=sizeof(cli);
	recvfrom(sd,msg,80,0,(struct sockaddr*)&cli,&i);
	 printf("%s",msg);

	return 0;
        //scanf("%s",msg);
}