socket.cpp

#include "socket.h"

void Socket::set_listenfd() {
    this->listenfd = socket(AF_INET, SOCK_STREAM, 0);
    if(this->listenfd == -1) {
        std::cout << "socket() failed." << std::endl;
        exit(1);
    }
}

void Socket::set_sockaddr_in() {
    memset(&this->serv_addr, 0, sizeof(this->serv_addr));

    this->serv_addr.sin_family = AF_INET;
    this->serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
    this->serv_addr.sin_port = htons(this->port);

}

int Socket::set_socket() {
    Socket::set_listenfd();
    int optval = 1;
    if(setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)) == -1) {
        std::cout << "setsockopt() failed." << std::endl;
        close(listenfd);
        return -1;
    }

    Socket::set_sockaddr_in();
    if(bind(this->listenfd, (struct sockaddr*)&this->serv_addr, sizeof(this->serv_addr)) == -1) {
        std::cout << "bind() failed.(" << errno << ")" << std::endl;
        close(this->listenfd);
        return -1;
    }

    if(listen(this->listenfd, SOMAXCONN) == -1) {
        std::cout << "listen() failed." << std::endl;
        close(this->listenfd);
        return -1;
    }

    return 0;
}