/* Stub for readlink(). Copyright (C) 2003-2005 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <errno.h> #include <sys/types.h> #include <sys/stat.h> #include <stddef.h> #if !HAVE_READLINK /* readlink() substitute for systems that don't have a readlink() function, such as DJGPP 2.03 and mingw32. */ /* The official POSIX return type of readlink() is ssize_t, but since here we have no declaration in a public header file, we use 'int' as return type. */ int readlink (const char *path, char *buf, size_t bufsize) { struct stat statbuf; /* In general we should use lstat() here, not stat(). But on platforms without symbolic links lstat() - if it exists - would be equivalent to stat(), therefore we can use stat(). This saves us a configure check. */ if (stat (path, &statbuf) >= 0) errno = EINVAL; return -1; } #endif