1 /***********************************************************************
2 *                                                                      *
3 *               This software is part of the ast package               *
4 *          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5 *                      and is licensed under the                       *
6 *                 Eclipse Public License, Version 1.0                  *
7 *                    by AT&T Intellectual Property                     *
8 *                                                                      *
9 *                A copy of the License is available at                 *
10 *          http://www.eclipse.org/org/documents/epl-v10.html           *
11 *         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
12 *                                                                      *
13 *              Information and Software Systems Research               *
14 *                            AT&T Research                             *
15 *                           Florham Park NJ                            *
16 *                                                                      *
17 *                 Glenn Fowler <gsf@research.att.com>                  *
18 *                  David Korn <dgk@research.att.com>                   *
19 *                   Phong Vo <kpv@research.att.com>                    *
20 *                                                                      *
21 ***********************************************************************/
22 #pragma prototyped
23 /*
24  * AT&T Bell Laboratories
25  * disable preroot and open path relative to the real root
26  */
27 
28 #include <ast.h>
29 #include <preroot.h>
30 
31 #if FS_PREROOT
32 
33 int
realopen(const char * path,int mode,int perm)34 realopen(const char* path, int mode, int perm)
35 {
36 	char		buf[PATH_MAX + 8];
37 
38 	if (*path != '/' || !ispreroot(NiL)) return(-1);
39 	strcopy(strcopy(buf, PR_REAL), path);
40 	return(open(buf, mode, perm));
41 }
42 
43 #else
44 
45 NoN(realopen)
46 
47 #endif
48