1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/ioutil.c	Sun Mar 04 21:10:12 2012 +1000
     1.3 @@ -0,0 +1,54 @@
     1.4 +/**
     1.5 + * $Id$
     1.6 + * 
     1.7 + * Network support functions
     1.8 + *
     1.9 + * Copyright (c) 2009 Nathan Keynes.
    1.10 + *
    1.11 + * This program is free software; you can redistribute it and/or modify
    1.12 + * it under the terms of the GNU General Public License as published by
    1.13 + * the Free Software Foundation; either version 2 of the License, or
    1.14 + * (at your option) any later version.
    1.15 + *
    1.16 + * This program is distributed in the hope that it will be useful,
    1.17 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.18 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.19 + * GNU General Public License for more details.
    1.20 + */
    1.21 +
    1.22 +#include <string.h>
    1.23 +#include <unistd.h>
    1.24 +#include <sys/socket.h>
    1.25 +#include <netinet/in.h>
    1.26 +#include <arpa/inet.h>
    1.27 +#include <errno.h>
    1.28 +#include "ioutil.h"
    1.29 +
    1.30 +int io_create_server_socket(const char *interface, int port )
    1.31 +{
    1.32 +    struct sockaddr_in sin;
    1.33 +    int fd = socket(AF_INET, SOCK_STREAM, 0);
    1.34 +    if( fd == -1 ) {
    1.35 +        ERROR( "Failed to create TCP socket!" );
    1.36 +        return -1;
    1.37 +    }
    1.38 +    
    1.39 +    sin.sin_family = AF_INET;
    1.40 +    sin.sin_addr.s_addr = 0;
    1.41 +    sin.sin_port = htons(port);
    1.42 +    
    1.43 +    if( interface != NULL ) {
    1.44 +        if( !inet_aton(interface, &sin.sin_addr) ) {
    1.45 +            /* TODO: hostname lookup */
    1.46 +        }
    1.47 +    }
    1.48 +
    1.49 +    if( bind( fd, (struct sockaddr *)&sin, sizeof(sin) ) != 0 ||
    1.50 +            listen(fd, 5) != 0 ) {
    1.51 +        close(fd);
    1.52 +        ERROR( "Failed to bind port %d (%s)", port, strerror(errno) );
    1.53 +        return -1;
    1.54 +    }
    1.55 +    return fd;
    1.56 +}
    1.57 +