/* >> SocketHelper Class << Marco Klein, 18.01.2009 11:44
This class gives you the possibility to use
linux sockets the easy way. What you have to do is:
-> Include SocketHelper.h
-> Initialize 'SocketHelper' class
-> Call the 'OpenSocket' method
-> Call the 'Listen' method
-> Then call the 'RecieveData' method.
-> To get your message you have to:
> Call the 'CopyMessage' method
> Then get your char[256] of the class named 'Message'
-> If you want to, you can 'Answer' a char* to your client with
the Answer method.
To close your connection, use "CloseSocket"
You have to include the following headers:
#include <cstdlib>
#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include <fstream>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <string.h>
Have Fun
c) 2009 by WorldRacer, http://www.devforyou.de
*/
#define SH_READY_FOR_LISTENING 1
#define SH_ACCEPT_FAILED 1
#define SH_ERROR_OPENING_SOCKET 1
#define SH_ERROR_BINDING 1
#define SH_ERROR_READING_SOCKET 1
#define SH_ERROR_SENDING_MSG 1
#define SH_NOT_ALLOWED_YET 1
using namespace std;
class SocketHelper {
public:
SocketHelper(int port);
int Listen(void);
int OpenSocket(void);
int RetrieveMessage(void);
int Answer(char *data);
int CopyMessage(void);
char Message[256];
int CloseSocket(void);
private:
int status;
int sockfd, newsockfd, portno, clilen, n;
char buffer[256];
struct sockaddr_in serv_addr, cli_addr;
};
SocketHelper::SocketHelper(int port){
this->portno = port;
this->status = 0;
Message[0] = 'N';
Message[1] = 'O';
Message[2] = '_';
Message[3] = 'M';
Message[4] = 'E';
Message[5] = 'S';
Message[6] = 'S';
Message[7] = 'A';
Message[8] = 'G';
Message[9] = 'E';
Message[10] = '_';
Message[11] = 'C';
Message[12] = 'O';
Message[13] = 'P';
Message[14] = 'I';
Message[15] = 'E';
Message[16] = 'D';
Message[17] = '\0';
}
int SocketHelper::OpenSocket(void){
this->sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (this->sockfd < 0)
return 1;
bzero((char *) &this->serv_addr, sizeof(this->serv_addr));
this->serv_addr.sin_family = AF_INET;
this->serv_addr.sin_port = htons(portno);
this->serv_addr.sin_addr.s_addr = INADDR_ANY;
if (bind(this->sockfd, (struct sockaddr *) &this->serv_addr, sizeof(this->serv_addr)) < 0){
return 2;
}
this->status = 1;
return 0;
}
int SocketHelper::Listen(void){
if(this->status != 1){
return 3;
}
this->status = 2;
listen(this->sockfd,5);
}
int SocketHelper::RetrieveMessage(void){
int error;
if(this->status != 2){
return 3;
}
this->clilen = sizeof(this->cli_addr);
this->newsockfd = accept(this->sockfd, (struct sockaddr *) &this->cli_addr, (socklen_t *) &this->clilen);
if (this->newsockfd < 0){
return 1;
}
bzero(this->buffer,255);
this->n = read(this->newsockfd,this->buffer,255);
if (this->n < 0){
return 2;
}
return 0;
}
int stringlength(char *s)
{
int len=0;
while(*s !=0)
{
len++;
s++;
}
return len;
}
int SocketHelper::Answer(char *data){
this->n = write(this->newsockfd,data,stringlength(data));
if (this->n < 0) return 1;
return 0;
}
int SocketHelper::CloseSocket(void){
return close(this->sockfd);
}
int SocketHelper::CopyMessage(void){
int i;
for(i=0; i<=255; i++){
this->Message[i] = this->buffer[i];
}
return 0;
}
