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  * realpath implementation
25  */
26 
27 #define realpath	______realpath
28 #define resolvepath	______resolvepath
29 
30 #include <ast.h>
31 
32 #undef	realpath
33 #undef	resolvepath
34 
35 #undef	_def_map_ast
36 #include <ast_map.h>
37 
38 extern int		resolvepath(const char*, char*, size_t);
39 
40 #if defined(__EXPORT__)
41 #define extern	__EXPORT__
42 #endif
43 
44 extern char*
realpath(const char * file,char * path)45 realpath(const char* file, char* path)
46 {
47 	return resolvepath(file, path, PATH_MAX) > 0 ? path : (char*)0;
48 }
49