TCP/IP Application Development
From Computing and Software Wiki
Contents |
Introduction
TCP/IP Applications are Applications based on the TCP/IP protocol suite. It is part of the Application Layer of the Layered Network Model also known as OSI.
Client/Server Model
Best Practices
Security Issues
Examples
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdio.h>
#define SERVERPORT 8888
#define SERVERADDRESS "192.168.1.105"
int main()
{
int servSock, bytes_sent, sin_size;
char msg[10];
struct sockaddr_in serverAddress; // server's address and port information
struct hostent *host; //host information
if ((servSock = socket(PF_INET, SOCK_STREAM, 0)) < 0)
printf("socket() FAILED");
serverAddress.sin_family = AF_INET;
serverAddress.sin_port = htons(SERVERPORT);
serverAddress.sin_addr.s_addr = inet_addr(SERVERADDRESS);
memset(serverAddress.sin_zero, '\0', sizeof serverAddress.sin_zero);
connect(servSock, (struct sockaddr *)&serverAddress, sizeof serverAddress);
while(1)
{
scanf("%s", msg);
send(servSock, msg, sizeof (msg), 0);
if(strcmp(msg, "exit") == 0)
break;
}
close(servSock);
return 1;
}
