/*
 * CDE - Common Desktop Environment
 *
 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
 *
 * These libraries and programs are free software; you can
 * redistribute them and/or modify them under the terms of the GNU
 * Lesser General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * These libraries and programs are distributed in the hope that
 * they will be useful, but WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE. See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with these libraries and programs; if not, write
 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
 * Floor, Boston, MA 02110-1301 USA
 */
/* $XConsortium: pathaccess.c /main/2 1996/05/08 19:51:22 drk $ */
/***************************************************************
*                                                              *
*                      AT&T - PROPRIETARY                      *
*                                                              *
*         THIS IS PROPRIETARY SOURCE CODE LICENSED BY          *
*                          AT&T CORP.                          *
*                                                              *
*                Copyright (c) 1995 AT&T Corp.                 *
*                     All Rights Reserved                      *
*                                                              *
*           This software is licensed by AT&T Corp.            *
*       under the terms and conditions of the license in       *
*       http://www.research.att.com/orgs/ssr/book/reuse        *
*                                                              *
*               This software was created by the               *
*           Software Engineering Research Department           *
*                    AT&T Bell Laboratories                    *
*                                                              *
*               For further information contact                *
*                     gsf@research.att.com                     *
*                                                              *
***************************************************************/

/* : : generated by proto : : */

#if !defined(__PROTO__)
#if defined(__STDC__) || defined(__cplusplus) || defined(_proto) || defined(c_plusplus)
#if defined(__cplusplus)
#define __MANGLE__	"C"
#else
#define __MANGLE__
#endif
#define __STDARG__
#define __PROTO__(x)	x
#define __OTORP__(x)
#define __PARAM__(n,o)	n
#if !defined(__STDC__) && !defined(__cplusplus)
#if !defined(c_plusplus)
#define const
#endif
#define signed
#define void		int
#define volatile
#define __V_		char
#else
#define __V_		void
#endif
#else
#define __PROTO__(x)	()
#define __OTORP__(x)	x
#define __PARAM__(n,o)	o
#define __MANGLE__
#define __V_		char
#define const
#define signed
#define void		int
#define volatile
#endif
#if defined(__cplusplus) || defined(c_plusplus)
#define __VARARG__	...
#else
#define __VARARG__
#endif
#if defined(__STDARG__)
#define __VA_START__(p,a)	va_start(p,a)
#else
#define __VA_START__(p,a)	va_start(p)
#endif
#endif
#include <ast.h>
#include <ls.h>

char*
pathaccess __PARAM__((char* path, const char* dirs, const char* a, const char* b, int mode), (path, dirs, a, b, mode)) __OTORP__(char* path; const char* dirs; const char* a; const char* b; int mode;){
	int	m = 0;
	int		sep = ':';
	char		cwd[PATH_MAX];
	struct stat	st;

#ifdef EFF_ONLY_OK
	m |= EFF_ONLY_OK;
#endif
#ifdef EX_OK
	if (mode == (PATH_EXECUTE|PATH_REGULAR))
	{
		mode &= ~PATH_REGULAR;
		m |= EX_OK;
	}
	else
#endif
	{
		if (mode & PATH_READ) m |= R_OK;
		if (mode & PATH_WRITE) m |= W_OK;
		if (mode & PATH_EXECUTE) m |= X_OK;
	}
	do
	{
		dirs = pathcat(path, dirs, sep, a, b);
		pathcanon(path, 0);
		if (!access(path, m))
		{
			if ((mode & PATH_REGULAR) && (stat(path, &st) || S_ISDIR(st.st_mode))) continue;
			if (*path == '/' || !(mode & PATH_ABSOLUTE)) return(path);
			dirs = getcwd(cwd, sizeof(cwd));
			sep = 0;
		}
	} while (dirs);
	return(0);
}