98 lines
2 KiB
C++
98 lines
2 KiB
C++
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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
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*/
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/*
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* File: server.cpp
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* Author: dimercur
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*
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* Created on 19 octobre 2018, 14:24
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*/
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#include "server.h"
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#define NB_CONNECTION_MAX 1
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int socketFD = -1;
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int clientID = -1;
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int openServer(int port) {
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struct sockaddr_in server;
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socketFD = socket(AF_INET, SOCK_STREAM, 0);
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if (socketFD < 0) {
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perror("Can not create socket");
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exit(-1);
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}
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server.sin_addr.s_addr = INADDR_ANY;
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server.sin_family = AF_INET;
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server.sin_port = htons(port);
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if (bind(socketFD, (struct sockaddr *) &server, sizeof (server)) < 0) {
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perror("Can not bind socket");
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exit(-1);
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}
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listen(socketFD, NB_CONNECTION_MAX);
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return socketFD;
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}
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int closeServer() {
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close(socketFD);
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socketFD = -1;
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}
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int acceptClient() {
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struct sockaddr_in client;
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int c = sizeof (struct sockaddr_in);
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clientID = accept(socketFD, (struct sockaddr *) &client, (socklen_t*) & c);
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if (clientID < 0) {
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perror("Accept failed in acceptClient");
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exit(-1);
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}
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return clientID;
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}
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int sendDataToServer(char *data, int length) {
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return sendDataToServerForClient(clientID, data, length);
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}
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int sendDataToServerForClient(int client, char *data, int length) {
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if (client >= 0)
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return write(client, (void*)data, length);
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else return 0;
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}
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int receiveDataFromServer(char *data, int size) {
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return receiveDataFromServerFromClient(clientID, data, size);
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}
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int receiveDataFromServerFromClient(int client, char *data, int size) {
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char length = 0;
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if (client > 0) {
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if ((length = recv(client, (void*)data, size, 0)) > 0) {
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data[length] = 0;
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}
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}
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return length;
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}
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