xref: /titanic_51/usr/src/lib/libast/common/comp/realpath.c (revision 3e14f97f673e8a630f076077de35afdd43dc1587)
1da2e3ebdSchin /***********************************************************************
2da2e3ebdSchin *                                                                      *
3da2e3ebdSchin *               This software is part of the ast package               *
4*3e14f97fSRoger A. Faulkner *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
5da2e3ebdSchin *                      and is licensed under the                       *
6da2e3ebdSchin *                  Common Public License, Version 1.0                  *
77c2fbfb3SApril Chin *                    by AT&T Intellectual Property                     *
8da2e3ebdSchin *                                                                      *
9da2e3ebdSchin *                A copy of the License is available at                 *
10da2e3ebdSchin *            http://www.opensource.org/licenses/cpl1.0.txt             *
11da2e3ebdSchin *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12da2e3ebdSchin *                                                                      *
13da2e3ebdSchin *              Information and Software Systems Research               *
14da2e3ebdSchin *                            AT&T Research                             *
15da2e3ebdSchin *                           Florham Park NJ                            *
16da2e3ebdSchin *                                                                      *
17da2e3ebdSchin *                 Glenn Fowler <gsf@research.att.com>                  *
18da2e3ebdSchin *                  David Korn <dgk@research.att.com>                   *
19da2e3ebdSchin *                   Phong Vo <kpv@research.att.com>                    *
20da2e3ebdSchin *                                                                      *
21da2e3ebdSchin ***********************************************************************/
22da2e3ebdSchin #pragma prototyped
23da2e3ebdSchin /*
24da2e3ebdSchin  * realpath implementation
25da2e3ebdSchin  */
26da2e3ebdSchin 
27da2e3ebdSchin #define realpath	______realpath
28da2e3ebdSchin #define resolvepath	______resolvepath
29da2e3ebdSchin 
30da2e3ebdSchin #include <ast.h>
31da2e3ebdSchin 
32da2e3ebdSchin #undef	realpath
33da2e3ebdSchin #undef	resolvepath
34da2e3ebdSchin 
35da2e3ebdSchin #undef	_def_map_ast
36da2e3ebdSchin #include <ast_map.h>
37da2e3ebdSchin 
387c2fbfb3SApril Chin extern int		resolvepath(const char*, char*, size_t);
39da2e3ebdSchin 
40da2e3ebdSchin #if defined(__EXPORT__)
41da2e3ebdSchin #define extern	__EXPORT__
42da2e3ebdSchin #endif
43da2e3ebdSchin 
44da2e3ebdSchin extern char*
realpath(const char * file,char * path)45da2e3ebdSchin realpath(const char* file, char* path)
46da2e3ebdSchin {
477c2fbfb3SApril Chin 	return resolvepath(file, path, PATH_MAX) > 0 ? path : (char*)0;
48da2e3ebdSchin }
49