open.c

微软的基于HMM的人脸识别原代码, 非常经典的说

/* open.c -- open a file.
 * 
 * Copyright (c) 1995 Cygnus Support
 *
 * The authors hereby grant permission to use, copy, modify, distribute,
 * and license this software and its documentation for any purpose, provided
 * that existing copyright notices are retained in all copies and that this
 * notice is included verbatim in any distributions. No written agreement,
 * license, or royalty fee is required for any of the authorized uses.
 * Modifications to this software may be copyrighted by their authors
 * and need not follow the licensing terms described here, provided that
 * the new terms are clearly indicated on the first page of each file where
 * they apply.
 */
#include <errno.h>
#include "glue.h"

/*
 * open -- open a file descriptor. We don't have a filesystem, so
 *         we return an error.
 */
int
_DEFUN (open, (buf, flags, mode),
       const char *buf _AND
       int flags _AND
       int mode)
{
  #ifdef debuglg
  prs("[open]\n");
  inbyte();
  #endif
  SET_ERRNO (EIO); 
  return (-1);
}