/* ltdl.c -- system independent dlopen wrapper

   Copyright (C) 1998-2000, 2004-2008, 2011-2019, 2021-2022 Free
   Software Foundation, Inc.
   Written by Thomas Tanner, 1998

   NOTE: The canonical source of this file is maintained with the
   GNU Libtool package.  Report bugs to bug-libtool@gnu.org.

GNU Libltdl is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.

As a special exception to the GNU Lesser General Public License,
if you distribute this file as part of a program or library that
is built using GNU Libtool, you may include this file under the
same distribution terms that you use for the rest of that program.

GNU Libltdl 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with GNU Libltdl; see the file COPYING.LIB.  If not, a
copy can be downloaded from  http://www.gnu.org/licenses/lgpl.html,
or obtained by writing to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/

#include "lt__private.h"
#include "lt_system.h"
#include "lt_dlloader.h"


/* --- MANIFEST CONSTANTS --- */


/* Standard libltdl search path environment variable name  */
#undef  LTDL_SEARCHPATH_VAR
#define LTDL_SEARCHPATH_VAR	"LTDL_LIBRARY_PATH"

/* Standard libtool archive file extension.  */
#undef  LT_ARCHIVE_EXT
#define LT_ARCHIVE_EXT	".la"

/* max. filename length */
#if !defined LT_FILENAME_MAX
#  define LT_FILENAME_MAX	1024
#endif

#if !defined LT_LIBEXT
#  define LT_LIBEXT "a"
#endif

#if !defined LT_LIBPREFIX
#  define LT_LIBPREFIX "lib"
#endif

/* This is the maximum symbol size that won't require malloc/free */
#undef	LT_SYMBOL_LENGTH
#define LT_SYMBOL_LENGTH	128

/* This accounts for the _LTX_ separator */
#undef	LT_SYMBOL_OVERHEAD
#define LT_SYMBOL_OVERHEAD	5

/* Various boolean flags can be stored in the flags field of an
   lt_dlhandle... */
#define LT_DLIS_RESIDENT(handle)  ((handle)->info.is_resident)
#define LT_DLIS_SYMGLOBAL(handle) ((handle)->info.is_symglobal)
#define LT_DLIS_SYMLOCAL(handle)  ((handle)->info.is_symlocal)


static	const char	objdir[]		= LT_OBJDIR;
static	const char	archive_ext[]		= LT_ARCHIVE_EXT;
static  const char	libext[]		= LT_LIBEXT;
static  const char	libprefix[]		= LT_LIBPREFIX;
#if defined LT_MODULE_EXT
static	const char	shlib_ext[]		= LT_MODULE_EXT;
#endif
/* If the loadable module suffix is not the same as the linkable
 * shared library suffix, this will be defined. */
#if defined LT_SHARED_EXT
static	const char	shared_ext[]		= LT_SHARED_EXT;
#endif
#if defined LT_DLSEARCH_PATH
static	const char	sys_dlsearch_path[]	= LT_DLSEARCH_PATH;
#endif