root/cserver/main.c

#include "server.h"

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include "server_utils.h"

/*
 * With the two functions below and the main,
 * two echo-server will be invoked: 
 *  - tcp:12345
 *  - udp:12349
 *
 * It's just a sample.
 */

void tcp_echo(int skt,struct sockaddr *s,socklen_t *salen)
{
    char buf[256];
    int res;

    memset(buf,0,256);
    res=recv(skt,buf,256,0);
    if (res==-1) {
        debug("Tcp recv error: %s.",strerror(errno));
        return;
    }
    send(skt,buf,res,0);
    close(skt);
    return ;
}

void udp_echo(int skt, struct sockaddr *s, socklen_t *salen)
{
    char buf[256];
    int res;
    struct sockaddr client;
    socklen_t   client_len;
    client_len=sizeof(client);

    res=recvfrom(skt,buf,256,0,&client,&client_len);
    if (res==-1) {
        debug("Udp recvfrom error: %s.",strerror(errno));
        return;
    }
    sendto(skt,buf,res,0,&client,client_len);
    return;
}

void morte(int niente)
{
    debug("Death's coming.");
    servers_stop();
    return;
}

void comeva(int nulla)
{
    debug("Speaking is good.");
    return;
}

int main() {
    server s[2],*temp;

    temp=s;
    server_init(temp);
    server_set_name(temp,"TcpEchoServer");
    server_set_port(temp,12345);
    server_set_handler(temp,&tcp_echo);
    server_set_signal_handler(temp,SIGINT,&morte);
    server_set_signal_handler(temp,SIGHUP,&comeva);

    temp=s+1;
    server_init(temp);
    server_set_name(temp,"UdpEchoServer");
    server_set_port(temp,12349);
    server_set_type(temp,SOCK_DGRAM);
    server_set_handler(temp,&udp_echo);
    server_set_signal_handler(temp,SIGINT,&morte);

    servers_serve(s,2);
    return 0;
}