1*946379e7Schristos /* Stub for readlink().
2*946379e7Schristos Copyright (C) 2003-2006 Free Software Foundation, Inc.
3*946379e7Schristos
4*946379e7Schristos This program is free software; you can redistribute it and/or modify
5*946379e7Schristos it under the terms of the GNU General Public License as published by
6*946379e7Schristos the Free Software Foundation; either version 2, or (at your option)
7*946379e7Schristos any later version.
8*946379e7Schristos
9*946379e7Schristos This program is distributed in the hope that it will be useful,
10*946379e7Schristos but WITHOUT ANY WARRANTY; without even the implied warranty of
11*946379e7Schristos MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12*946379e7Schristos GNU General Public License for more details.
13*946379e7Schristos
14*946379e7Schristos You should have received a copy of the GNU General Public License
15*946379e7Schristos along with this program; if not, write to the Free Software Foundation,
16*946379e7Schristos Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
17*946379e7Schristos
18*946379e7Schristos #include <config.h>
19*946379e7Schristos
20*946379e7Schristos #include <errno.h>
21*946379e7Schristos #include <sys/types.h>
22*946379e7Schristos #include <sys/stat.h>
23*946379e7Schristos #include <stddef.h>
24*946379e7Schristos
25*946379e7Schristos #if !HAVE_READLINK
26*946379e7Schristos
27*946379e7Schristos /* readlink() substitute for systems that don't have a readlink() function,
28*946379e7Schristos such as DJGPP 2.03 and mingw32. */
29*946379e7Schristos
30*946379e7Schristos /* The official POSIX return type of readlink() is ssize_t, but since here
31*946379e7Schristos we have no declaration in a public header file, we use 'int' as return
32*946379e7Schristos type. */
33*946379e7Schristos
34*946379e7Schristos int
readlink(const char * path,char * buf,size_t bufsize)35*946379e7Schristos readlink (const char *path, char *buf, size_t bufsize)
36*946379e7Schristos {
37*946379e7Schristos struct stat statbuf;
38*946379e7Schristos
39*946379e7Schristos /* In general we should use lstat() here, not stat(). But on platforms
40*946379e7Schristos without symbolic links lstat() - if it exists - would be equivalent to
41*946379e7Schristos stat(), therefore we can use stat(). This saves us a configure check. */
42*946379e7Schristos if (stat (path, &statbuf) >= 0)
43*946379e7Schristos errno = EINVAL;
44*946379e7Schristos return -1;
45*946379e7Schristos }
46*946379e7Schristos
47*946379e7Schristos #endif
48