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/*

 *  access() - POSIX 1003.1b 5.6.3 - File Accessibility

 *

 *  COPYRIGHT (c) 1989-1999.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  The license and distribution terms for this file may be

 *  found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 *  $Id: access.c,v 1.2 2001-09-27 12:01:15 chris Exp $

 */

#include <unistd.h>

#include <fcntl.h>

#include <sys/stat.h>

int access(

  const char *path,

  int         amode

)

{

  struct stat statbuf;

  if ( stat(path, &statbuf) )

    return -1;

  if ( amode & R_OK ) {

    if (!( statbuf.st_mode & S_IREAD ))

      return -1;

  }

  if ( amode & W_OK ) {

    if ( !( statbuf.st_mode & S_IWRITE ) )

      return -1;

  }

  if ( amode & X_OK ) {

    if ( !( statbuf.st_mode & S_IEXEC ) )

      return -1;

  }

  return 0;

}