/* ====================================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2000 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Apache" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache",
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 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

#define INCL_DOSEXCEPTIONS
#include "threadproc.h"
#include "fileio.h"
#include "apr_thread_proc.h"
#include "apr_file_io.h"
#include "apr_general.h"
#include <signal.h>
#include <string.h>
#include <sys/wait.h>
#define INCL_DOS
#include <os2.h>

apr_status_t apr_kill(apr_proc_t *proc, int signal)
{
/* SIGTERM's don't work too well in OS/2 (only affects other EMX programs).
   CGIs may not be, esp. REXX scripts, so use a native call instead */
   
    apr_status_t rc;
    
    if ( signal == SIGTERM ) {
        rc = APR_OS2_STATUS(DosSendSignalException(proc->pid, XCPT_SIGNAL_BREAK));
    } else {
        rc = kill(proc->pid, signal) < 0 ? errno : APR_SUCCESS;
    }
    
    return rc;
}



/*
 * Replace standard signal() with the more reliable sigaction equivalent
 * from W. Richard Stevens' "Advanced Programming in the UNIX Environment"
 * (the version that does not automatically restart system calls).
 */
Sigfunc *apr_signal(int signo, Sigfunc * func)
{
    struct sigaction act, oact;

    act.sa_handler = func;
    sigemptyset(&act.sa_mask);
    act.sa_flags = 0;
    if (sigaction(signo, &act, &oact) < 0)
        return SIG_ERR;
    return oact.sa_handler;
}