eaccess.c

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/* @(#)eaccess.c    1.6 14/05/15 Copyright 2004-2014 J. Schilling */
#include <schily/mconfig.h>
#ifndef lint
static  UConst char sccsid[] =
    "@(#)eaccess.c  1.6 14/05/15 Copyright 2004-2014 J. Schilling";
#endif
/*
 * Implement the best possible emulation for eaccess()
 *
 * Copyright 2004-2014 J. Schilling
 */
/*
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * See the file CDDL.Schily.txt in this distribution for details.
 * A copy of the CDDL is also available via the Internet at
 * http://www.opensource.org/licenses/cddl1.txt
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file CDDL.Schily.txt from this distribution.
 */

#include <schily/unistd.h>
#include <schily/standard.h>
#include <schily/errno.h>
#include <schily/schily.h>

#ifndef HAVE_EACCESS
EXPORT  int eaccess     __PR((const char *name, int mode));

EXPORT int
eaccess(name, mode)
    const   char    *name;
        int mode;
{
#ifdef  HAVE_EUIDACCESS
    return (euidaccess(name, mode));
#else
#ifdef  HAVE_ACCESS_E_OK
    return (access(name, E_OK|mode));
#else
    if (getuid() == geteuid() && getgid() == getegid())
        return (access(name, mode));
#ifdef  EOPNOTSUPP
    seterrno(EOPNOTSUPP);
#else
    seterrno(EINVAL);
#endif
    return (-1);
#endif
#endif
}
#endif