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/*
** SWISH++
** SocketAddress.c
**
** Copyright (C) 2000 Paul J. Lucas
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
// standard
#include <iostream>
#include <netdb.h> /* for gethostbyname(3), etc */
#include <sys/types.h> /* needed by FreeBSD systems */
#include <netinet/in.h>
#include <cstring>
#include <cstdlib> /* for atoi(3) */
// local
#include "exit_codes.h"
#include "platform.h"
#include "SocketAddress.h"
using namespace std;
//*****************************************************************************
//
// SYNOPSIS
//
void SocketAddress::convert_host( char const *hostname_or_ip )
//
// DESCRIPTION
//
// Parse either a hostname (foo.bar.com) or an IP address (123.45.67.89)
// and convert it to a value suitable for use as an Internet address. A
// value of '*' means "any IP address."
//
// PARAMETERS
//
// hostname_or_ip The host name or IP address to be parsed.
//
// SEE ALSO
//
// W. Richard Stevens. "Unix Network Programming, Vol 1, 2nd ed."
// Prentice-Hall, Upper Saddle River, NJ, 1998, section 9.3.
//
//*****************************************************************************
{
if ( *hostname_or_ip == '*' ) {
addr_.s_addr = htonl( INADDR_ANY );
return;
}
struct hostent const *const host = ::gethostbyname( hostname_or_ip );
if ( !host ) {
error() << '"' << hostname_or_ip << "\" is invalid\n";
::exit( Exit_No_Host_or_IP );
}
//
// The h_addr_list member is defined as "char**" even though it is really
// "struct in_addr**" (this seems really brain damaged), so we have to do
// an ugly cast.
//
addr_ = *reinterpret_cast<struct in_addr*>( host->h_addr_list[0] );
}
//*****************************************************************************
//
// SYNOPSIS
//
void SocketAddress::parse_value( char *line )
//
// DESCRIPTION
//
// Parse the IP address (maybe) and port number from the line of text.
//
// PARAMETERS
//
// line The line of text to be parsed.
//
//*****************************************************************************
{
conf<string>::parse_value( line );
char *const colon = ::strchr( line, ':' );
if ( colon ) {
*colon = '\0';
convert_host( line );
port_ = ::atoi( colon + 1 );
} else
port_ = ::atoi( line );
if ( !port_ )
::exit( Exit_Config_File );
}
/* vim:set et sw=4 ts=4: */
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