#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
int main()
{
int newsockfd, portno, clilen;
char buffer[256];
struct sockaddr_in serv_addr, cli_addr;
int n;
int sockfd= socket(AF_INET, SOCK_STREAM, 0);
if(sockfd<0)
{
printf("\nError in creating Sockets\n");
exit(0);
}
else
{
bzero((char *) &serv_addr, sizeof(serv_addr));
portno = 5001;
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr = INADDR_ANY;
serv_addr.sin_port = htons(portno);
if (bind(sockfd, (struct sockaddr *) &serv_addr,sizeof(serv_addr)) < 0)
{
perror("\nERROR on binding\n");
exit(1);
}
else{
while(1)
{
listen(sockfd,5);
clilen = sizeof(cli_addr);
newsockfd = accept(sockfd, (struct sockaddr *)&cli_addr, &clilen);
if (newsockfd < 0)
{
perror("ERROR on accept");
exit(1);
}
bzero(buffer,256);
n = read( newsockfd,buffer,255 );
if (n < 0)
{
perror("ERROR reading from socket");
exit(1);
}
printf("%s\n",buffer);
n = write(newsockfd,buffer,256);
if (n < 0)
{
perror("ERROR writing to socket");
exit(1);
}
}
}
}
}
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