2005-11-16 16:11:08 +00:00
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/**
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* @file host.c
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*
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* @brief host object, identifies a host and defines some useful functions on it.
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*
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "host.h"
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#include "allocator.h"
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/**
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* @brief The logger object.
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*/
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typedef struct private_host_s private_host_t;
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struct private_host_s {
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/**
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* Public data
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*/
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host_t public;
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/**
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* Address family to use, such as AF_INET or AF_INET6
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*/
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int family;
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/**
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* low-lewel structure, wich stores the address
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*/
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sockaddr_t address;
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/**
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* length of address structure
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*/
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socklen_t socklen;
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};
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2005-11-21 11:45:04 +00:00
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/**
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* implements host_t.get_sockaddr
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*/
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static sockaddr_t *get_sockaddr(private_host_t *this)
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2005-11-16 16:11:08 +00:00
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{
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return &(this->address);
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}
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2005-11-21 11:45:04 +00:00
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/**
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* implements host_t.get_sockaddr_len
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*/
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static socklen_t *get_sockaddr_len(private_host_t *this)
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2005-11-16 16:11:08 +00:00
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{
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return &(this->socklen);
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}
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/**
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2005-11-21 11:45:04 +00:00
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* implements host_t.get_address
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*/
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static char *get_address(private_host_t *this)
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{
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switch (this->family)
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{
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case AF_INET:
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{
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struct sockaddr_in *sin = (struct sockaddr_in*)&(this->address);
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return inet_ntoa(sin->sin_addr);
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}
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default:
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{
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return "(family not supported)";
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}
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}
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}
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/**
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* implements host_t.get_port
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*/
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static u_int16_t get_port(private_host_t *this)
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{
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switch (this->family)
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{
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case AF_INET:
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{
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struct sockaddr_in *sin = (struct sockaddr_in*)&(this->address);
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return ntohs(sin->sin_port);
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}
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default:
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{
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return 0;
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}
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}
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}
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/**
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* Implements host_t.destroy
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2005-11-16 16:11:08 +00:00
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*/
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static status_t destroy(private_host_t *this)
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{
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allocator_free(this);
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return SUCCESS;
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}
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/**
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2005-11-21 11:45:04 +00:00
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* Implements host_t.clone.
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2005-11-16 16:11:08 +00:00
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*/
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static status_t clone(private_host_t *this, host_t **other)
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{
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private_host_t *new = allocator_alloc_thing(private_host_t);
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if (new == NULL)
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{
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return OUT_OF_RES;
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}
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memcpy(new, this, sizeof(private_host_t));
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*other = (host_t*)new;
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return SUCCESS;
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}
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/*
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* see header
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*/
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host_t *host_create(int family, char *address, u_int16_t port)
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{
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private_host_t *this = allocator_alloc_thing(private_host_t);
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if (this == NULL)
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{
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return NULL;
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}
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this->public.get_sockaddr = (sockaddr_t* (*) (host_t*))get_sockaddr;
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this->public.get_sockaddr_len = (socklen_t*(*) (host_t*))get_sockaddr_len;
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this->public.clone = (status_t (*) (host_t*, host_t**))clone;
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2005-11-21 11:45:04 +00:00
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this->public.get_address = (char* (*) (host_t *))get_address;
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this->public.get_port = (u_int16_t (*) (host_t *))get_port;
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2005-11-16 16:11:08 +00:00
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this->public.destroy = (status_t (*) (host_t*))destroy;
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this->family = family;
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switch (family)
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{
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/* IPv4 */
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case AF_INET:
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{
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struct sockaddr_in *sin = (struct sockaddr_in*)&(this->address);
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sin->sin_family = AF_INET;
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sin->sin_addr.s_addr = inet_addr(address);
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sin->sin_port = htons(port);
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this->socklen = sizeof(struct sockaddr_in);
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return (host_t*)this;
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}
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}
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allocator_free(this);
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return NULL;
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}
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