[gssapi-openssh.git] / openssh / openbsd-compat / bsd-waitpid.c

/*
 * Copyright (c) 2000 Ben Lindstrom.  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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR 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 USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "includes.h"

RCSID("$Id$");

#ifndef HAVE_WAITPID 
#include <errno.h>
#include <sys/wait.h>
#include "bsd-waitpid.h"

pid_t
waitpid(int pid, int *stat_loc, int options)
{
	union wait statusp;
	pid_t wait_pid;

	if (pid <= 0) {
		if (pid != -1) {
			errno = EINVAL;
			return (-1);
		}
		/* wait4() wants pid=0 for indiscriminate wait. */
		pid = 0;
	}
        wait_pid = wait4(pid, &statusp, options, NULL);
	if (stat_loc)
        	*stat_loc = (int) statusp.w_status;            

        return (wait_pid);                               
}

#endif /* !HAVE_WAITPID */
Commit	Line	Data
3c0ef626	1	/*
0fff78ff	2	* Copyright (c) 2000 Ben Lindstrom. All rights reserved.
0fff78ff	3	*
3c0ef626	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	* 1. Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* 2. Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	*
	13	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	14	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	15	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
	16	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	17	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	18	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	19	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	20	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	21	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	22	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	23	*/
	24
	25	#include "includes.h"
	26
	27	RCSID("$Id$");
	28
	29	#ifndef HAVE_WAITPID
	30	#include <errno.h>
	31	#include <sys/wait.h>
	32	#include "bsd-waitpid.h"
	33
	34	pid_t
	35	waitpid(int pid, int *stat_loc, int options)
	36	{
	37	union wait statusp;
	38	pid_t wait_pid;
	39
	40	if (pid <= 0) {
	41	if (pid != -1) {
	42	errno = EINVAL;
0fff78ff	43	return (-1);
3c0ef626	44	}
0fff78ff	45	/* wait4() wants pid=0 for indiscriminate wait. */
0fff78ff	46	pid = 0;
3c0ef626	47	}
	48	wait_pid = wait4(pid, &statusp, options, NULL);
	49	if (stat_loc)
	50	*stat_loc = (int) statusp.w_status;
	51
0fff78ff	52	return (wait_pid);
3c0ef626	53	}
	54
	55	#endif /* !HAVE_WAITPID */