//
// The developer of the original code and/or files is Tripwire, Inc.
// Portions created by Tripwire, Inc. are copyright (C) 2000 Tripwire,
// Inc. Tripwire is a registered trademark of Tripwire, Inc.  All rights
// reserved.
// 
// This program is free software.  The contents of this file are subject
// to 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.  You may redistribute it and/or modify it
// only in compliance with the GNU General Public License.
// 
// This program is distributed in the hope that it will be useful.
// However, this program is distributed AS-IS WITHOUT ANY
// WARRANTY; INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS
// FOR A PARTICULAR PURPOSE.  Please 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// 
// Nothing in the GNU General Public License or any other license to use
// the code or files shall permit you to use Tripwire's trademarks,
// service marks, or other intellectual property without Tripwire's
// prior written consent.
// 
// If you have any questions, please contact Tripwire, Inc. at either
// info@tripwire.org or www.tripwire.org.
//
// tw_signal.cpp
#include "stdcore.h"
#include "tw_signal.h"
#include "corestrings.h"
#include <signal.h>
#include <stdlib.h>

static void util_SignalHandler( int sig );

#if IS_UNIX
static void tw_psignal( int sig, const TCHAR* s );
#endif

tw_sighandler_t tw_signal(int sig, tw_sighandler_t pFunc)
{
    return signal(sig, pFunc);
}

int tw_raise(int sig)
{
    return raise(sig);
}

tw_sighandler_t tw_sigign(int sig)
{
    return signal(sig, SIG_IGN);
}

//////////////////////////////////////////////////////////////////////
// tw_HandleSignal -- Take a given signal and install a handler for 
//      it, which will then exit with the supplied exit value
tw_sighandler_t tw_HandleSignal( int sig )
{
    return signal( sig, util_SignalHandler );
}

void util_SignalHandler( int sig )
{
    //If we're on unix, let's print out a nice error message telling
    //the user which signal we've recieved.
#if IS_UNIX
    tw_psignal( sig, (TSS_GetString( cCore, core::STR_SIGNAL).c_str() ) );
#endif

    exit( 8 );
}

#if IS_UNIX

#ifndef NSIG
  #define NSIG 32
#endif

void tw_psignal(int sig, const TCHAR *str)
{
    const TCHAR *siglist[NSIG] = {
        _T("Unknown Signal"),
        _T("Hangup"),
        _T("Interrupt"),
        _T("Quit"),
        _T("Illegal Instruction"),
        _T("Trace/Breakpoint Trap"),
        _T("Abort"),
        _T("Emulation Trap"),
        _T("Arithmetic Exception"),
        _T("Killed"),
        _T("Bus Error"),
        _T("Segmentation Fault"),
        _T("Bad System Call"),
        _T("Broken Pipe"),
        _T("Alarm Clock"),
        _T("Terminated"),
        _T("User Signal 1"),
        _T("User Signal 2"),
        _T("Child Status Changed"),
        _T("Power-Fail/Restart"),
        _T("Virtual Timer Expired"),
        _T("Profiling Timer Expired"),
        _T("Pollable Event"),
        _T("Window Size Change"),
        _T("Stopped (signal)"),
        _T("Stopped (user)"),
        _T("Continued"),
        _T("Stopped (tty input)"),
        _T("Stopped (tty output)"),
        _T("Urgent Socket Condition"),
        _T("File Lock Lost")
    };

    _ftprintf(stderr, _T("%s %s\n"), str, sig < NSIG ? siglist[sig] : siglist[0]);
}
#endif