/***********************************************************************

*                                                                      *

*               This software is part of the ast package               *

*          Copyright (c) 1990-2011 AT&T Intellectual Property          *

*                      and is licensed under the                       *

*                 Eclipse Public License, Version 1.0                  *

*                    by AT&T Intellectual Property                     *

*                                                                      *

*                A copy of the License is available at                 *

*          http://www.eclipse.org/org/documents/epl-v10.html           *

*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

*                                                                      *

*              Information and Software Systems Research               *

*                            AT&T Research                             *

*                           Florham Park NJ                            *

*                                                                      *

*                 Glenn Fowler <gsf@research.att.com>                  *

*                                                                      *

***********************************************************************/

#pragma prototyped

/*

 * Glenn Fowler

 * AT&T Research

 *

 * coshell system(3)

 */

#include "colib.h"

int

cosystem(const char* cmd)

{

	Coshell_t*	co;

	Cojob_t*	cj;

	int		status;

	if (!cmd)

		return !eaccess(pathshell(), X_OK);

	if (!(co = coopen(NiL, CO_ANY, NiL)))

		return -1;

	if (cj = coexec(co, cmd, CO_SILENT, NiL, NiL, NiL))

		cj = cowait(co, cj, -1);

	if (!cj)

		return -1;

	/*

	 * synthesize wait() status from shell status

	 * lack of synthesis is the standard's proprietary sellout

	 */

	status = cj->status;

	if (EXITED_TERM(status))

		status &= ((1<<(EXIT_BITS-1))-1);

	else

		status = (status & ((1<

	return status;

}