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tdegames/lskat/lskat/KRSocket.cpp

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/***************************************************************************
KRSocket.cpp - description
-------------------
begin : Tue May 2 2000
copyright : (C) 2000 by Martin Heni
email : martin@heni-online.de
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
/***************************************************************************
FILENAME| - description
-------------------
begin : Tue Apr 4 2000
copyright : (C) |1995-2000 by Martin Heni
email : martin@heni-online.de
***************************************************************************/
/***************************************************************************
* *
* 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 file is part of the KDE libraries
* Copyright (C) 1997 Torben Weis (weis@kde.org)
*
* $Id$
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
**/
#include <config.h>
#include <sys/types.h>
#include <sys/stat.h>
// on Linux/libc5, this includes linux/socket.h where SOMAXCONN is defined
#include <sys/socket.h>
#include <sys/resource.h>
#include <sys/time.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "KRSocket.h"
#include <errno.h>
#include <fcntl.h>
#include <netdb.h>
// defines MAXDNAME under Solaris
#include <arpa/nameser.h>
#include <resolv.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#ifdef HAVE_SYSENT_H
#include <sysent.h>
#endif
#ifdef TIME_WITH_SYS_TIME
#include <time.h>
#endif
// Play it safe, use a reasonable default, if SOMAXCONN was nowhere defined.
#ifndef SOMAXCONN
#warning Your header files do not seem to support SOMAXCONN
#define SOMAXCONN 5
#endif
#include <tqsocketnotifier.h>
#ifndef UNIX_PATH_MAX
#define UNIX_PATH_MAX 108 // this is the value, I found under Linux
#endif
#include <kdebug.h>
KRServerSocket::KRServerSocket( const char *_path, int optname, int value, int level) :
notifier( 0L ), sock( -1 )
{
domain = PF_UNIX;
if ( !init ( _path,optname,value,level ) )
{
tqFatal("Error constructing PF_UNIX domain server socket\n");
return;
}
notifier = new TQSocketNotifier( sock, TQSocketNotifier::Read );
connect( notifier, TQT_SIGNAL( activated(int) ), this, TQT_SLOT( slotAccept(int) ) );
}
KRServerSocket::KRServerSocket( const char *_path ) :
notifier( 0L ), sock( -1 )
{
domain = PF_UNIX;
if ( !init ( _path ) )
{
tqFatal("Error constructing PF_UNIX domain server socket\n");
return;
}
notifier = new TQSocketNotifier( sock, TQSocketNotifier::Read );
connect( notifier, TQT_SIGNAL( activated(int) ), this, TQT_SLOT( slotAccept(int) ) );
}
KRServerSocket::KRServerSocket( unsigned short int _port ) :
notifier( 0L ), sock( -1 )
{
domain = PF_INET;
if ( !init ( _port ) )
{
// fatal("Error constructing\n");
return;
}
notifier = new TQSocketNotifier( sock, TQSocketNotifier::Read );
connect( notifier, TQT_SIGNAL( activated(int) ), this, TQT_SLOT( slotAccept(int) ) );
}
KRServerSocket::KRServerSocket( unsigned short int _port,int optname,int value,int level ) :
notifier( 0L ), sock( -1 )
{
domain = PF_INET;
if ( !init ( _port,optname,value,level ) )
{
// fatal("Error constructing\n");
return;
}
notifier = new TQSocketNotifier( sock, TQSocketNotifier::Read );
connect( notifier, TQT_SIGNAL( activated(int) ), this, TQT_SLOT( slotAccept(int) ) );
}
bool KRServerSocket::init( const char *_path )
{
return init(_path,0);
}
bool KRServerSocket::init( const char *_path,int optname,int value,int level )
{
if ( domain != PF_UNIX )
return false;
int l = strlen( _path );
if ( l > UNIX_PATH_MAX - 1 )
{
kdWarning() << "Too long PF_UNIX domain name: " << _path << endl;
return false;
}
sock = ::socket( PF_UNIX, SOCK_STREAM, 0 );
if (sock < 0)
{
kdWarning() << "Could not create socket" << endl;
return false;
}
// Heni - 05042000
if (optname>0)
{
kde_socklen_t len=sizeof(value);
if (-1==setsockopt(sock,level,optname,(char*)&value,len ))
{
kdWarning() << "Could not set socket options." << endl;
}
}
// end Heni
unlink(_path );
struct sockaddr_un name;
name.sun_family = AF_UNIX;
strcpy( name.sun_path, _path );
if ( bind( sock, (struct sockaddr*) &name,sizeof( name ) ) < 0 )
{
kdWarning() << "Could not bind to socket." << endl;
::close( sock );
sock = -1;
return false;
}
if ( chmod( _path, 0600) < 0 )
{
kdWarning() << "Could not setupt premissions for server socket." << endl;
::close( sock );
sock = -1;
return false;
}
if ( listen( sock, SOMAXCONN ) < 0 )
{
kdWarning() << "Error listening on socket." << endl;
::close( sock );
sock = -1;
return false;
}
return true;
}
bool KRServerSocket::init( unsigned short int _port )
{
return init(_port,0);
}
bool KRServerSocket::init( unsigned short int _port,int optname,int value,int level )
{
if (
#ifdef INET6
( domain != PF_INET6 ) &&
#endif
( domain != PF_INET ) )
return false;
sock = ::socket( domain, SOCK_STREAM, 0 );
if (sock < 0)
{
kdWarning() << "Could not create socket" << endl;
return false;
}
// Heni - 05042000
if (optname>0)
{
kde_socklen_t len=sizeof(value);
if (-1==setsockopt(sock,level,optname,(char*)&value,len ))
{
kdWarning() << "Could not set socket options." << endl;
}
}
// end Heni
if (domain == AF_INET) {
sockaddr_in name;
name.sin_family = domain;
name.sin_port = htons( _port );
name.sin_addr.s_addr = htonl(INADDR_ANY);
if ( bind( sock, (struct sockaddr*) &name,sizeof( name ) ) < 0 ) {
kdWarning() << "Could not bind to socket." << endl;
::close( sock );
sock = -1;
return false;
}
}
#ifdef INET6
else if (domain == AF_INET6) {
sockaddr_in6 name;
name.sin6_family = domain;
name.sin6_flowinfo = 0;
name.sin6_port = htons(_port);
memcpy(&name.sin6_addr, &in6addr_any, sizeof(in6addr_any));
if ( bind( sock, (struct sockaddr*) &name,sizeof( name ) ) < 0 ) {
kdWarning() << "Could not bind to socket!" << endl;
::close( sock );
sock = -1;
return false;
}
}
#endif
if ( listen( sock, SOMAXCONN ) < 0 )
{
kdWarning() << "Error listening on socket" << endl;
::close( sock );
sock = -1;
return false;
}
return true;
}
unsigned short int KRServerSocket::port()
{
if ( domain != PF_INET )
return false;
ksockaddr_in name; kde_socklen_t len = sizeof(name);
getsockname(sock, (struct sockaddr *) &name, &len);
return ntohs(get_sin_port(name));
}
unsigned long KRServerSocket::ipv4_addr()
{
if ( domain != PF_INET )
return 0;
sockaddr_in name; kde_socklen_t len = sizeof(name);
getsockname(sock, (struct sockaddr *) &name, &len);
if (name.sin_family == AF_INET) // It's IPv4
return ntohl(name.sin_addr.s_addr);
#ifdef INET6
else if (name.sin_family == AF_INET6) // It's IPv6 Ah.
return 0;
#endif
else // We dunno what it is
return 0;
}
void KRServerSocket::slotAccept( int )
{
if ( domain == PF_INET )
{
ksockaddr_in clientname;
int new_sock;
kde_socklen_t size = sizeof(clientname);
if ((new_sock = accept (sock, (struct sockaddr *) &clientname, &size)) < 0)
{
kdWarning() << "Error accepting" << endl;
return;
}
emit accepted( new TDESocket( new_sock ) );
}
else if ( domain == PF_UNIX )
{
struct sockaddr_un clientname;
int new_sock;
kde_socklen_t size = sizeof(clientname);
if ((new_sock = accept (sock, (struct sockaddr *) &clientname, &size)) < 0)
{
kdWarning() << "Error accepting" << endl;
return;
}
emit accepted( new TDESocket( new_sock ) );
}
}
KRServerSocket::~KRServerSocket()
{
delete notifier;
close( sock );
}
#include "KRSocket.moc"