+++ /dev/null
-diff -up scim-1.4.8/src/ltdl.cpp.fix-dlopen scim-1.4.8/src/ltdl.cpp
---- scim-1.4.8/src/ltdl.cpp.fix-dlopen 2008-11-02 14:42:40.000000000 +0800
-+++ scim-1.4.8/src/ltdl.cpp 2009-03-25 15:12:45.733010053 +0800
-@@ -1,4414 +0,0 @@
--/* ltdl.c -- system independent dlopen wrapper
-- Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
-- Originally by Thomas Tanner <tanner@ffii.org>
-- This file is part of GNU Libtool.
--
--This library 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 it under the same
--distribution terms that you use for the rest of that program.
--
--This library 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 this library; if not, write to the Free Software
--Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
--02111-1307 USA
--
--*/
--
--#if HAVE_CONFIG_H
--# include <config.h>
--#endif
--
--#if HAVE_UNISTD_H
--# include <unistd.h>
--#endif
--
--#if HAVE_STDIO_H
--# include <stdio.h>
--#endif
--
--/* Include the header defining malloc. On K&R C compilers,
-- that's <malloc.h>, on ANSI C and ISO C compilers, that's <stdlib.h>. */
--#if HAVE_STDLIB_H
--# include <stdlib.h>
--#else
--# if HAVE_MALLOC_H
--# include <malloc.h>
--# endif
--#endif
--
--#if HAVE_STRING_H
--# include <string.h>
--#else
--# if HAVE_STRINGS_H
--# include <strings.h>
--# endif
--#endif
--
--#if HAVE_CTYPE_H
--# include <ctype.h>
--#endif
--
--#if HAVE_MEMORY_H
--# include <memory.h>
--#endif
--
--#if HAVE_ERRNO_H
--# include <errno.h>
--#endif
--
--
--#ifndef __WINDOWS__
--# ifdef __WIN32__
--# define __WINDOWS__
--# endif
--#endif
--
--
--#undef LT_USE_POSIX_DIRENT
--#ifdef HAVE_CLOSEDIR
--# ifdef HAVE_OPENDIR
--# ifdef HAVE_READDIR
--# ifdef HAVE_DIRENT_H
--# define LT_USE_POSIX_DIRENT
--# endif /* HAVE_DIRENT_H */
--# endif /* HAVE_READDIR */
--# endif /* HAVE_OPENDIR */
--#endif /* HAVE_CLOSEDIR */
--
--
--#undef LT_USE_WINDOWS_DIRENT_EMULATION
--#ifndef LT_USE_POSIX_DIRENT
--# ifdef __WINDOWS__
--# define LT_USE_WINDOWS_DIRENT_EMULATION
--# endif /* __WINDOWS__ */
--#endif /* LT_USE_POSIX_DIRENT */
--
--
--#ifdef LT_USE_POSIX_DIRENT
--# include <dirent.h>
--# define LT_D_NAMLEN(dirent) (strlen((dirent)->d_name))
--#else
--# ifdef LT_USE_WINDOWS_DIRENT_EMULATION
--# define LT_D_NAMLEN(dirent) (strlen((dirent)->d_name))
--# else
--# define dirent direct
--# define LT_D_NAMLEN(dirent) ((dirent)->d_namlen)
--# if HAVE_SYS_NDIR_H
--# include <sys/ndir.h>
--# endif
--# if HAVE_SYS_DIR_H
--# include <sys/dir.h>
--# endif
--# if HAVE_NDIR_H
--# include <ndir.h>
--# endif
--# endif
--#endif
--
--#if HAVE_ARGZ_H
--# include <argz.h>
--#endif
--
--#if HAVE_ASSERT_H
--# include <assert.h>
--#else
--# define assert(arg) ((void) 0)
--#endif
--
--#include "ltdl.h"
--
--#if WITH_DMALLOC
--# include <dmalloc.h>
--#endif
--
--
--
--\f
--/* --- WINDOWS SUPPORT --- */
--
--
--#ifdef DLL_EXPORT
--# define LT_GLOBAL_DATA __declspec(dllexport)
--#else
--# define LT_GLOBAL_DATA
--#endif
--
--/* fopen() mode flags for reading a text file */
--#undef LT_READTEXT_MODE
--#ifdef __WINDOWS__
--# define LT_READTEXT_MODE "rt"
--#else
--# define LT_READTEXT_MODE "r"
--#endif
--
--#ifdef LT_USE_WINDOWS_DIRENT_EMULATION
--
--#include <windows.h>
--
--#define dirent lt_dirent
--#define DIR lt_DIR
--
--struct dirent
--{
-- char d_name[2048];
-- int d_namlen;
--};
--
--typedef struct _DIR
--{
-- HANDLE hSearch;
-- WIN32_FIND_DATA Win32FindData;
-- BOOL firsttime;
-- struct dirent file_info;
--} DIR;
--
--#endif /* LT_USE_WINDOWS_DIRENT_EMULATION */
--
--namespace scim {
--
--\f
--/* --- 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 LTDL_ARCHIVE_EXT
--#define LTDL_ARCHIVE_EXT ".la"
--
--/* max. filename length */
--#ifndef LT_FILENAME_MAX
--# define LT_FILENAME_MAX 1024
--#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
--
--
--
--\f
--/* --- MEMORY HANDLING --- */
--
--
--/* These are the functions used internally. In addition to making
-- use of the associated function pointers above, they also perform
-- error handling. */
--static char *lt_estrdup LT_PARAMS((const char *str));
--static lt_ptr lt_emalloc LT_PARAMS((size_t size));
--static lt_ptr lt_erealloc LT_PARAMS((lt_ptr addr, size_t size));
--
--/* static lt_ptr rpl_realloc LT_PARAMS((lt_ptr ptr, size_t size)); */
--#define rpl_realloc realloc
--
--/* These are the pointers that can be changed by the caller: */
--LT_GLOBAL_DATA lt_ptr (*lt_dlmalloc) LT_PARAMS((size_t size))
-- = (lt_ptr (*) LT_PARAMS((size_t))) malloc;
--LT_GLOBAL_DATA lt_ptr (*lt_dlrealloc) LT_PARAMS((lt_ptr ptr, size_t size))
-- = (lt_ptr (*) LT_PARAMS((lt_ptr, size_t))) rpl_realloc;
--LT_GLOBAL_DATA void (*lt_dlfree) LT_PARAMS((lt_ptr ptr))
-- = (void (*) LT_PARAMS((lt_ptr))) free;
--
--/* The following macros reduce the amount of typing needed to cast
-- assigned memory. */
--#if WITH_DMALLOC
--
--#define LT_DLMALLOC(tp, n) ((tp *) xmalloc ((n) * sizeof(tp)))
--#define LT_DLREALLOC(tp, p, n) ((tp *) xrealloc ((p), (n) * sizeof(tp)))
--#define LT_DLFREE(p) \
-- LT_STMT_START { if (p) { xfree (p); (p) = 0; } } LT_STMT_END
--
--#define LT_EMALLOC(tp, n) ((tp *) xmalloc ((n) * sizeof(tp)))
--#define LT_EREALLOC(tp, p, n) ((tp *) xrealloc ((p), (n) * sizeof(tp)))
--
--#else
--
--#define LT_DLMALLOC(tp, n) ((tp *) lt_dlmalloc ((n) * sizeof(tp)))
--#define LT_DLREALLOC(tp, p, n) ((tp *) lt_dlrealloc ((p), (n) * sizeof(tp)))
--#define LT_DLFREE(p) \
-- LT_STMT_START { if (p) { lt_dlfree (p); (p) = 0; } } LT_STMT_END
--
--#define LT_EMALLOC(tp, n) ((tp *) lt_emalloc ((n) * sizeof(tp)))
--#define LT_EREALLOC(tp, p, n) ((tp *) lt_erealloc ((p), (n) * sizeof(tp)))
--
--#endif
--
--#define LT_DLMEM_REASSIGN(p, q) LT_STMT_START { \
-- if ((p) != (q)) { if (p) lt_dlfree (p); (p) = (q); (q) = 0; } \
-- } LT_STMT_END
--
--\f
--/* --- REPLACEMENT FUNCTIONS --- */
--
--
--#undef strdup
--#define strdup rpl_strdup
--
--static char *strdup LT_PARAMS((const char *str));
--
--static char *
--strdup(const char *str)
--{
-- char *tmp = 0;
--
-- if (str)
-- {
-- tmp = LT_DLMALLOC (char, 1+ strlen (str));
-- if (tmp)
-- {
-- strcpy(tmp, str);
-- }
-- }
--
-- return tmp;
--}
--
--
--#if ! HAVE_STRCMP
--
--#undef strcmp
--#define strcmp rpl_strcmp
--
--static int strcmp LT_PARAMS((const char *str1, const char *str2));
--
--static int
--strcmp (const char *str1, const char *str2)
--{
-- if (str1 == str2)
-- return 0;
-- if (str1 == 0)
-- return -1;
-- if (str2 == 0)
-- return 1;
--
-- for (;*str1 && *str2; ++str1, ++str2)
-- {
-- if (*str1 != *str2)
-- break;
-- }
--
-- return (int)(*str1 - *str2);
--}
--#endif
--
--
--#if ! HAVE_STRCHR
--
--# if HAVE_INDEX
--# define strchr index
--# else
--# define strchr rpl_strchr
--
--static const char *strchr LT_PARAMS((const char *str, int ch));
--
--static const char*
--strchr(const char *str, int ch)
--{
-- const char *p;
--
-- for (p = str; *p != (char)ch && *p != LT_EOS_CHAR; ++p)
-- /*NOWORK*/;
--
-- return (*p == (char)ch) ? p : 0;
--}
--
--# endif
--#endif /* !HAVE_STRCHR */
--
--
--#if ! HAVE_STRRCHR
--
--# if HAVE_RINDEX
--# define strrchr rindex
--# else
--# define strrchr rpl_strrchr
--
--static const char *strrchr LT_PARAMS((const char *str, int ch));
--
--static const char*
--strrchr(const char *str, int ch)
--{
-- const char *p, *q = 0;
--
-- for (p = str; *p != LT_EOS_CHAR; ++p)
-- {
-- if (*p == (char) ch)
-- {
-- q = p;
-- }
-- }
--
-- return q;
--}
--
--# endif
--#endif
--
--/* NOTE: Neither bcopy nor the memcpy implementation below can
-- reliably handle copying in overlapping areas of memory. Use
-- memmove (for which there is a fallback implmentation below)
-- if you need that behaviour. */
--#if ! HAVE_MEMCPY
--
--# if HAVE_BCOPY
--# define memcpy(dest, src, size) bcopy (src, dest, size)
--# else
--# define memcpy rpl_memcpy
--
--static lt_ptr memcpy LT_PARAMS((lt_ptr dest, const lt_ptr src, size_t size));
--
--static lt_ptr
--memcpy (lt_ptr dest, const lt_ptr src, size_t size)
--{
-- size_t i = 0;
--
-- for (i = 0; i < size; ++i)
-- {
-- dest[i] = src[i];
-- }
--
-- return dest;
--}
--
--# endif /* !HAVE_BCOPY */
--#endif /* !HAVE_MEMCPY */
--
--#if ! HAVE_MEMMOVE
--# define memmove rpl_memmove
--
--static lt_ptr memmove LT_PARAMS((lt_ptr dest, const lt_ptr src, size_t size));
--
--static lt_ptr
--memmove (lt_ptr dest, const lt_ptr src, size_t size)
--{
-- size_t i;
--
-- if (dest < src)
-- for (i = 0; i < size; ++i)
-- {
-- dest[i] = src[i];
-- }
-- else if (dest > src)
-- for (i = size -1; i >= 0; --i)
-- {
-- dest[i] = src[i];
-- }
--
-- return dest;
--}
--
--#endif /* !HAVE_MEMMOVE */
--
--#ifdef LT_USE_WINDOWS_DIRENT_EMULATION
--
--static void closedir LT_PARAMS((DIR *entry));
--
--static void
--closedir(DIR *entry)
--{
-- assert(entry != (DIR *) NULL);
-- FindClose(entry->hSearch);
-- lt_dlfree((lt_ptr)entry);
--}
--
--
--static DIR * opendir LT_PARAMS((const char *path));
--
--static DIR*
--opendir (const char *path)
--{
-- char file_specification[LT_FILENAME_MAX];
-- DIR *entry;
--
-- assert(path != (char *) NULL);
-- (void) strncpy(file_specification,path,LT_FILENAME_MAX-1);
-- (void) strcat(file_specification,"\\");
-- entry = LT_DLMALLOC (DIR,sizeof(DIR));
-- if (entry != (DIR *) 0)
-- {
-- entry->firsttime = TRUE;
-- entry->hSearch = FindFirstFile(file_specification,&entry->Win32FindData);
-- }
-- if (entry->hSearch == INVALID_HANDLE_VALUE)
-- {
-- (void) strcat(file_specification,"\\*.*");
-- entry->hSearch = FindFirstFile(file_specification,&entry->Win32FindData);
-- if (entry->hSearch == INVALID_HANDLE_VALUE)
-- {
-- LT_DLFREE (entry);
-- return (DIR *) 0;
-- }
-- }
-- return(entry);
--}
--
--
--static struct dirent *readdir LT_PARAMS((DIR *entry));
--
--static struct dirent *readdir(DIR *entry)
--{
-- int
-- status;
--
-- if (entry == (DIR *) 0)
-- return((struct dirent *) 0);
-- if (!entry->firsttime)
-- {
-- status = FindNextFile(entry->hSearch,&entry->Win32FindData);
-- if (status == 0)
-- return((struct dirent *) 0);
-- }
-- entry->firsttime = FALSE;
-- (void) strncpy(entry->file_info.d_name,entry->Win32FindData.cFileName,
-- LT_FILENAME_MAX-1);
-- entry->file_info.d_namlen = strlen(entry->file_info.d_name);
-- return(&entry->file_info);
--}
--
--#endif /* LT_USE_WINDOWS_DIRENT_EMULATION */
--
--/* According to Alexandre Oliva <oliva@lsd.ic.unicamp.br>,
-- ``realloc is not entirely portable''
-- In any case we want to use the allocator supplied by the user without
-- burdening them with an lt_dlrealloc function pointer to maintain.
-- Instead implement our own version (with known boundary conditions)
-- using lt_dlmalloc and lt_dlfree. */
--
--/* #undef realloc
-- #define realloc rpl_realloc
--*/
--#if 0
-- /* You can't (re)define realloc unless you also (re)define malloc.
-- Right now, this code uses the size of the *destination* to decide
-- how much to copy. That's not right, but you can't know the size
-- of the source unless you know enough about, or wrote malloc. So
-- this code is disabled... */
--
--static lt_ptr
--realloc (ptr, size)
-- lt_ptr ptr;
-- size_t size;
--{
-- if (size == 0)
-- {
-- /* For zero or less bytes, free the original memory */
-- if (ptr != 0)
-- {
-- lt_dlfree (ptr);
-- }
--
-- return (lt_ptr) 0;
-- }
-- else if (ptr == 0)
-- {
-- /* Allow reallocation of a NULL pointer. */
-- return lt_dlmalloc (size);
-- }
-- else
-- {
-- /* Allocate a new block, copy and free the old block. */
-- lt_ptr mem = lt_dlmalloc (size);
--
-- if (mem)
-- {
-- memcpy (mem, ptr, size);
-- lt_dlfree (ptr);
-- }
--
-- /* Note that the contents of PTR are not damaged if there is
-- insufficient memory to realloc. */
-- return mem;
-- }
--}
--#endif
--
--
--#if ! HAVE_ARGZ_APPEND
--# define argz_append rpl_argz_append
--
--static error_t argz_append LT_PARAMS((char **pargz, size_t *pargz_len,
-- const char *buf, size_t buf_len));
--
--static error_t
--argz_append (char **pargz, size_t *pargz_len, const char *buf, size_t buf_len)
--{
-- size_t argz_len;
-- char *argz;
--
-- assert (pargz);
-- assert (pargz_len);
-- assert ((*pargz && *pargz_len) || (!*pargz && !*pargz_len));
--
-- /* If nothing needs to be appended, no more work is required. */
-- if (buf_len == 0)
-- return 0;
--
-- /* Ensure there is enough room to append BUF_LEN. */
-- argz_len = *pargz_len + buf_len;
-- argz = LT_DLREALLOC (char, *pargz, argz_len);
-- if (!argz)
-- return ENOMEM;
--
-- /* Copy characters from BUF after terminating '\0' in ARGZ. */
-- memcpy (argz + *pargz_len, buf, buf_len);
--
-- /* Assign new values. */
-- *pargz = argz;
-- *pargz_len = argz_len;
--
-- return 0;
--}
--#endif /* !HAVE_ARGZ_APPEND */
--
--
--#if ! HAVE_ARGZ_CREATE_SEP
--# define argz_create_sep rpl_argz_create_sep
--
--static error_t argz_create_sep LT_PARAMS((const char *str, int delim,
-- char **pargz, size_t *pargz_len));
--
--static error_t
--argz_create_sep (const char *str, int delim, char **pargz, size_t *pargz_len)
--{
-- size_t argz_len;
-- char *argz = 0;
--
-- assert (str);
-- assert (pargz);
-- assert (pargz_len);
--
-- /* Make a copy of STR, but replacing each occurence of
-- DELIM with '\0'. */
-- argz_len = 1+ LT_STRLEN (str);
-- if (argz_len)
-- {
-- const char *p;
-- char *q;
--
-- argz = LT_DLMALLOC (char, argz_len);
-- if (!argz)
-- return ENOMEM;
--
-- for (p = str, q = argz; *p != LT_EOS_CHAR; ++p)
-- {
-- if (*p == delim)
-- {
-- /* Ignore leading delimiters, and fold consecutive
-- delimiters in STR into a single '\0' in ARGZ. */
-- if ((q > argz) && (q[-1] != LT_EOS_CHAR))
-- *q++ = LT_EOS_CHAR;
-- else
-- --argz_len;
-- }
-- else
-- *q++ = *p;
-- }
-- /* Copy terminating LT_EOS_CHAR. */
-- *q = *p;
-- }
--
-- /* If ARGZ_LEN has shrunk to nothing, release ARGZ's memory. */
-- if (!argz_len)
-- LT_DLFREE (argz);
--
-- /* Assign new values. */
-- *pargz = argz;
-- *pargz_len = argz_len;
--
-- return 0;
--}
--#endif /* !HAVE_ARGZ_CREATE_SEP */
--
--
--#if ! HAVE_ARGZ_INSERT
--# define argz_insert rpl_argz_insert
--
--static error_t argz_insert LT_PARAMS((char **pargz, size_t *pargz_len,
-- char *before, const char *entry));
--
--static error_t
--argz_insert (char **pargz, size_t *pargz_len, char *before, const char *entry)
--{
-- assert (pargz);
-- assert (pargz_len);
-- assert (entry && *entry);
--
-- /* No BEFORE address indicates ENTRY should be inserted after the
-- current last element. */
-- if (!before)
-- return argz_append (pargz, pargz_len, entry, 1+ LT_STRLEN (entry));
--
-- /* This probably indicates a programmer error, but to preserve
-- semantics, scan back to the start of an entry if BEFORE points
-- into the middle of it. */
-- while ((before > *pargz) && (before[-1] != LT_EOS_CHAR))
-- --before;
--
-- {
-- size_t entry_len = 1+ LT_STRLEN (entry);
-- size_t argz_len = *pargz_len + entry_len;
-- size_t offset = before - *pargz;
-- char *argz = LT_DLREALLOC (char, *pargz, argz_len);
--
-- if (!argz)
-- return ENOMEM;
--
-- /* Make BEFORE point to the equivalent offset in ARGZ that it
-- used to have in *PARGZ incase realloc() moved the block. */
-- before = argz + offset;
--
-- /* Move the ARGZ entries starting at BEFORE up into the new
-- space at the end -- making room to copy ENTRY into the
-- resulting gap. */
-- memmove (before + entry_len, before, *pargz_len - offset);
-- memcpy (before, entry, entry_len);
--
-- /* Assign new values. */
-- *pargz = argz;
-- *pargz_len = argz_len;
-- }
--
-- return 0;
--}
--#endif /* !HAVE_ARGZ_INSERT */
--
--
--#if ! HAVE_ARGZ_NEXT
--# define argz_next rpl_argz_next
--
--static char *argz_next LT_PARAMS((char *argz, size_t argz_len,
-- const char *entry));
--
--static char *
--argz_next (char *argz, size_t argz_len, const char *entry)
--{
-- assert ((argz && argz_len) || (!argz && !argz_len));
--
-- if (entry)
-- {
-- /* Either ARGZ/ARGZ_LEN is empty, or ENTRY points into an address
-- within the ARGZ vector. */
-- assert ((!argz && !argz_len)
-- || ((argz <= entry) && (entry < (argz + argz_len))));
--
-- /* Move to the char immediately after the terminating
-- '\0' of ENTRY. */
-- entry = 1+ strchr (entry, LT_EOS_CHAR);
--
-- /* Return either the new ENTRY, or else NULL if ARGZ is
-- exhausted. */
-- return (entry >= argz + argz_len) ? 0 : (char *) entry;
-- }
-- else
-- {
-- /* This should probably be flagged as a programmer error,
-- since starting an argz_next loop with the iterator set
-- to ARGZ is safer. To preserve semantics, handle the NULL
-- case by returning the start of ARGZ (if any). */
-- if (argz_len > 0)
-- return argz;
-- else
-- return 0;
-- }
--}
--#endif /* !HAVE_ARGZ_NEXT */
--
--
--
--#if ! HAVE_ARGZ_STRINGIFY
--# define argz_stringify rpl_argz_stringify
--
--static void argz_stringify LT_PARAMS((char *argz, size_t argz_len,
-- int sep));
--
--static void
--argz_stringify (char *argz, size_t argz_len, int sep)
--{
-- assert ((argz && argz_len) || (!argz && !argz_len));
--
-- if (sep)
-- {
-- --argz_len; /* don't stringify the terminating EOS */
-- while (--argz_len > 0)
-- {
-- if (argz[argz_len] == LT_EOS_CHAR)
-- argz[argz_len] = sep;
-- }
-- }
--}
--#endif /* !HAVE_ARGZ_STRINGIFY */
--
--
--
--\f
--/* --- TYPE DEFINITIONS -- */
--
--
--/* This type is used for the array of caller data sets in each handler. */
--typedef struct {
-- lt_dlcaller_id key;
-- lt_ptr data;
--} lt_caller_data;
--
--
--
--\f
--/* --- OPAQUE STRUCTURES DECLARED IN LTDL.H --- */
--
--
--/* Extract the diagnostic strings from the error table macro in the same
-- order as the enumerated indices in ltdl.h. */
--
--static const char *lt_dlerror_strings[] =
-- {
--#define LT_ERROR(name, diagnostic) (diagnostic),
-- lt_dlerror_table
--#undef LT_ERROR
--
-- 0
-- };
--
--/* This structure is used for the list of registered loaders. */
--struct lt_dlloader {
-- struct lt_dlloader *next;
-- const char *loader_name; /* identifying name for each loader */
-- const char *sym_prefix; /* prefix for symbols */
-- lt_module_open *module_open;
-- lt_module_close *module_close;
-- lt_find_sym *find_sym;
-- lt_dlloader_exit *dlloader_exit;
-- lt_user_data dlloader_data;
--};
--
--struct lt_dlhandle_struct {
-- struct lt_dlhandle_struct *next;
-- lt_dlloader *loader; /* dlopening interface */
-- lt_dlinfo info;
-- int depcount; /* number of dependencies */
-- lt_dlhandle *deplibs; /* dependencies */
-- lt_module module; /* system module handle */
-- lt_ptr system; /* system specific data */
-- lt_caller_data *caller_data; /* per caller associated data */
-- int flags; /* various boolean stats */
--};
--
--/* Various boolean flags can be stored in the flags field of an
-- lt_dlhandle_struct... */
--#define LT_DLGET_FLAG(handle, flag) (((handle)->flags & (flag)) == (flag))
--#define LT_DLSET_FLAG(handle, flag) ((handle)->flags |= (flag))
--
--#define LT_DLRESIDENT_FLAG (0x01 << 0)
--/* ...add more flags here... */
--
--#define LT_DLIS_RESIDENT(handle) LT_DLGET_FLAG(handle, LT_DLRESIDENT_FLAG)
--
--
--#define LT_DLSTRERROR(name) lt_dlerror_strings[LT_CONC(LT_ERROR_,name)]
--
--static const char objdir[] = LTDL_OBJDIR;
--static const char archive_ext[] = LTDL_ARCHIVE_EXT;
--#ifdef LTDL_SHLIB_EXT
--static const char shlib_ext[] = LTDL_SHLIB_EXT;
--#endif
--#ifdef LTDL_SYSSEARCHPATH
--static const char sys_search_path[] = LTDL_SYSSEARCHPATH;
--#endif
--
--
--
--\f
--/* --- MUTEX LOCKING --- */
--
--
--/* Macros to make it easier to run the lock functions only if they have
-- been registered. The reason for the complicated lock macro is to
-- ensure that the stored error message from the last error is not
-- accidentally erased if the current function doesn't generate an
-- error of its own. */
--#define LT_DLMUTEX_LOCK() LT_STMT_START { \
-- if (lt_dlmutex_lock_func) (*lt_dlmutex_lock_func)(); \
-- } LT_STMT_END
--#define LT_DLMUTEX_UNLOCK() LT_STMT_START { \
-- if (lt_dlmutex_unlock_func) (*lt_dlmutex_unlock_func)();\
-- } LT_STMT_END
--#define LT_DLMUTEX_SETERROR(errormsg) LT_STMT_START { \
-- if (lt_dlmutex_seterror_func) \
-- (*lt_dlmutex_seterror_func) (errormsg); \
-- else lt_dllast_error = (errormsg); } LT_STMT_END
--#define LT_DLMUTEX_GETERROR(errormsg) LT_STMT_START { \
-- if (lt_dlmutex_seterror_func) \
-- (errormsg) = (*lt_dlmutex_geterror_func) (); \
-- else (errormsg) = lt_dllast_error; } LT_STMT_END
--
--/* The mutex functions stored here are global, and are necessarily the
-- same for all threads that wish to share access to libltdl. */
--static lt_dlmutex_lock *lt_dlmutex_lock_func = 0;
--static lt_dlmutex_unlock *lt_dlmutex_unlock_func = 0;
--static lt_dlmutex_seterror *lt_dlmutex_seterror_func = 0;
--static lt_dlmutex_geterror *lt_dlmutex_geterror_func = 0;
--static const char *lt_dllast_error = 0;
--
--
--/* Either set or reset the mutex functions. Either all the arguments must
-- be valid functions, or else all can be NULL to turn off locking entirely.
-- The registered functions should be manipulating a static global lock
-- from the lock() and unlock() callbacks, which needs to be reentrant. */
--int
--lt_dlmutex_register (
-- lt_dlmutex_lock *lock,
-- lt_dlmutex_unlock *unlock,
-- lt_dlmutex_seterror *seterror,
-- lt_dlmutex_geterror *geterror)
--{
-- lt_dlmutex_unlock *old_unlock = unlock;
-- int errors = 0;
--
-- /* Lock using the old lock() callback, if any. */
-- LT_DLMUTEX_LOCK ();
--
-- if ((lock && unlock && seterror && geterror)
-- || !(lock || unlock || seterror || geterror))
-- {
-- lt_dlmutex_lock_func = lock;
-- lt_dlmutex_unlock_func = unlock;
-- lt_dlmutex_geterror_func = geterror;
-- }
-- else
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_MUTEX_ARGS));
-- ++errors;
-- }
--
-- /* Use the old unlock() callback we saved earlier, if any. Otherwise
-- record any errors using internal storage. */
-- if (old_unlock)
-- (*old_unlock) ();
--
-- /* Return the number of errors encountered during the execution of
-- this function. */
-- return errors;
--}
--
--
--
--\f
--/* --- ERROR HANDLING --- */
--
--
--static const char **user_error_strings = 0;
--static int errorcount = LT_ERROR_MAX;
--
--int
--lt_dladderror (const char *diagnostic)
--{
-- int errindex = 0;
-- int result = -1;
-- const char **temp = (const char **) 0;
--
-- assert (diagnostic);
--
-- LT_DLMUTEX_LOCK ();
--
-- errindex = errorcount - LT_ERROR_MAX;
-- temp = LT_EREALLOC (const char *, user_error_strings, 1 + errindex);
-- if (temp)
-- {
-- user_error_strings = temp;
-- user_error_strings[errindex] = diagnostic;
-- result = errorcount++;
-- }
--
-- LT_DLMUTEX_UNLOCK ();
--
-- return result;
--}
--
--int
--lt_dlseterror (int errindex)
--{
-- int errors = 0;
--
-- LT_DLMUTEX_LOCK ();
--
-- if (errindex >= errorcount || errindex < 0)
-- {
-- /* Ack! Error setting the error message! */
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_ERRORCODE));
-- ++errors;
-- }
-- else if (errindex < LT_ERROR_MAX)
-- {
-- /* No error setting the error message! */
-- LT_DLMUTEX_SETERROR (lt_dlerror_strings[errindex]);
-- }
-- else
-- {
-- /* No error setting the error message! */
-- LT_DLMUTEX_SETERROR (user_error_strings[errindex - LT_ERROR_MAX]);
-- }
--
-- LT_DLMUTEX_UNLOCK ();
--
-- return errors;
--}
--
--static lt_ptr
--lt_emalloc (size_t size)
--{
-- lt_ptr mem = lt_dlmalloc (size);
-- if (size && !mem)
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (NO_MEMORY));
-- return mem;
--}
--
--static lt_ptr
--lt_erealloc (lt_ptr addr, size_t size)
--{
-- lt_ptr mem = lt_dlrealloc (addr, size);
-- if (size && !mem)
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (NO_MEMORY));
-- return mem;
--}
--
--static char *
--lt_estrdup (const char *str)
--{
-- char *copy = strdup (str);
-- if (LT_STRLEN (str) && !copy)
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (NO_MEMORY));
-- return copy;
--}
--
--
--
--\f
--/* --- DLOPEN() INTERFACE LOADER --- */
--
--
--#if HAVE_LIBDL
--
--/* dynamic linking with dlopen/dlsym */
--
--#if HAVE_DLFCN_H
--# include <dlfcn.h>
--#endif
--
--#if HAVE_SYS_DL_H
--# include <sys/dl.h>
--#endif
--
--#ifdef RTLD_GLOBAL
--# define LT_GLOBAL RTLD_GLOBAL
--#else
--# ifdef DL_GLOBAL
--# define LT_GLOBAL DL_GLOBAL
--# endif
--#endif /* !RTLD_GLOBAL */
--#ifndef LT_GLOBAL
--# define LT_GLOBAL 0
--#endif /* !LT_GLOBAL */
--
--/* We may have to define LT_LAZY_OR_NOW in the command line if we
-- find out it does not work in some platform. */
--#ifndef LT_LAZY_OR_NOW
--# ifdef RTLD_LAZY
--# define LT_LAZY_OR_NOW RTLD_LAZY
--# else
--# ifdef DL_LAZY
--# define LT_LAZY_OR_NOW DL_LAZY
--# endif
--# endif /* !RTLD_LAZY */
--#endif
--#ifndef LT_LAZY_OR_NOW
--# ifdef RTLD_NOW
--# define LT_LAZY_OR_NOW RTLD_NOW
--# else
--# ifdef DL_NOW
--# define LT_LAZY_OR_NOW DL_NOW
--# endif
--# endif /* !RTLD_NOW */
--#endif
--#ifndef LT_LAZY_OR_NOW
--# define LT_LAZY_OR_NOW 0
--#endif /* !LT_LAZY_OR_NOW */
--
--#if HAVE_DLERROR
--# define DLERROR(arg) dlerror ()
--#else
--# define DLERROR(arg) LT_DLSTRERROR (arg)
--#endif
--
--static lt_module
--sys_dl_open (lt_user_data loader_data, const char *filename)
--{
-- // XXX Need to investigate why .a files are asked to be open by this routine ???
-- lt_module module = dlopen (filename, LT_GLOBAL | LT_LAZY_OR_NOW);
--
-- if (!module)
-- {
-- LT_DLMUTEX_SETERROR (DLERROR (CANNOT_OPEN));
-- }
--
-- return module;
--}
--
--static int
--sys_dl_close (lt_user_data loader_data, lt_module module)
--{
-- int errors = 0;
--
-- if (dlclose (module) != 0)
-- {
-- LT_DLMUTEX_SETERROR (DLERROR (CANNOT_CLOSE));
-- ++errors;
-- }
--
-- return errors;
--}
--
--static lt_ptr
--sys_dl_sym (
-- lt_user_data loader_data,
-- lt_module module,
-- const char *symbol)
--{
-- lt_ptr address = dlsym (module, symbol);
--
-- if (!address)
-- {
-- LT_DLMUTEX_SETERROR (DLERROR (SYMBOL_NOT_FOUND));
-- }
--
-- return address;
--}
--
--static struct lt_user_dlloader sys_dl =
-- {
--# ifdef NEED_USCORE
-- "_",
--# else
-- 0,
--# endif
-- sys_dl_open, sys_dl_close, sys_dl_sym, 0, 0 };
--
--
--#endif /* HAVE_LIBDL */
--
--
--\f
--/* --- SHL_LOAD() INTERFACE LOADER --- */
--
--#if HAVE_SHL_LOAD
--
--/* dynamic linking with shl_load (HP-UX) (comments from gmodule) */
--
--#ifdef HAVE_DL_H
--# include <dl.h>
--#endif
--
--/* some flags are missing on some systems, so we provide
-- * harmless defaults.
-- *
-- * Mandatory:
-- * BIND_IMMEDIATE - Resolve symbol references when the library is loaded.
-- * BIND_DEFERRED - Delay code symbol resolution until actual reference.
-- *
-- * Optionally:
-- * BIND_FIRST - Place the library at the head of the symbol search
-- * order.
-- * BIND_NONFATAL - The default BIND_IMMEDIATE behavior is to treat all
-- * unsatisfied symbols as fatal. This flag allows
-- * binding of unsatisfied code symbols to be deferred
-- * until use.
-- * [Perl: For certain libraries, like DCE, deferred
-- * binding often causes run time problems. Adding
-- * BIND_NONFATAL to BIND_IMMEDIATE still allows
-- * unresolved references in situations like this.]
-- * BIND_NOSTART - Do not call the initializer for the shared library
-- * when the library is loaded, nor on a future call to
-- * shl_unload().
-- * BIND_VERBOSE - Print verbose messages concerning possible
-- * unsatisfied symbols.
-- *
-- * hp9000s700/hp9000s800:
-- * BIND_RESTRICTED - Restrict symbols visible by the library to those
-- * present at library load time.
-- * DYNAMIC_PATH - Allow the loader to dynamically search for the
-- * library specified by the path argument.
-- */
--
--#ifndef DYNAMIC_PATH
--# define DYNAMIC_PATH 0
--#endif
--#ifndef BIND_RESTRICTED
--# define BIND_RESTRICTED 0
--#endif
--
--#define LT_BIND_FLAGS (BIND_IMMEDIATE | BIND_NONFATAL | DYNAMIC_PATH)
--
--static lt_module
--sys_shl_open (lt_user_data loader_data, const char *filename)
--{
-- static shl_t self = (shl_t) 0;
-- lt_module module = shl_load (filename, LT_BIND_FLAGS, 0L);
--
-- /* Since searching for a symbol against a NULL module handle will also
-- look in everything else that was already loaded and exported with
-- the -E compiler flag, we always cache a handle saved before any
-- modules are loaded. */
-- if (!self)
-- {
-- lt_ptr address;
-- shl_findsym (&self, "main", TYPE_UNDEFINED, &address);
-- }
--
-- if (!filename)
-- {
-- module = self;
-- }
-- else
-- {
-- module = shl_load (filename, LT_BIND_FLAGS, 0L);
--
-- if (!module)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (CANNOT_OPEN));
-- }
-- }
--
-- return module;
--}
--
--static int
--sys_shl_close (lt_user_data loader_data, lt_module module)
--{
-- int errors = 0;
--
-- if (module && (shl_unload ((shl_t) (module)) != 0))
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (CANNOT_CLOSE));
-- ++errors;
-- }
--
-- return errors;
--}
--
--static lt_ptr
--sys_shl_sym (
-- lt_user_data loader_data,
-- lt_module module,
-- const char *symbol)
--{
-- lt_ptr address = 0;
--
-- /* sys_shl_open should never return a NULL module handle */
-- if (module == (lt_module) 0)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_HANDLE));
-- }
-- else if (!shl_findsym((shl_t*) &module, symbol, TYPE_UNDEFINED, &address))
-- {
-- if (!address)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (SYMBOL_NOT_FOUND));
-- }
-- }
--
-- return address;
--}
--
--static struct lt_user_dlloader sys_shl = {
-- 0, sys_shl_open, sys_shl_close, sys_shl_sym, 0, 0
--};
--
--#endif /* HAVE_SHL_LOAD */
--
--
--
--\f
--/* --- LOADLIBRARY() INTERFACE LOADER --- */
--
--#ifdef __WINDOWS__
--
--/* dynamic linking for Win32 */
--
--#include <windows.h>
--
--/* Forward declaration; required to implement handle search below. */
--static lt_dlhandle handles;
--
--static lt_module
--sys_wll_open (lt_user_data loader_data, const char *filename)
--{
-- lt_dlhandle cur;
-- lt_module module = 0;
-- const char *errormsg = 0;
-- char *searchname = 0;
-- char *ext;
-- char self_name_buf[MAX_PATH];
--
-- if (!filename)
-- {
-- /* Get the name of main module */
-- *self_name_buf = 0;
-- GetModuleFileName (NULL, self_name_buf, sizeof (self_name_buf));
-- filename = ext = self_name_buf;
-- }
-- else
-- {
-- ext = strrchr (filename, '.');
-- }
--
-- if (ext)
-- {
-- /* FILENAME already has an extension. */
-- searchname = lt_estrdup (filename);
-- }
-- else
-- {
-- /* Append a `.' to stop Windows from adding an
-- implicit `.dll' extension. */
-- searchname = LT_EMALLOC (char, 2+ LT_STRLEN (filename));
-- if (searchname)
-- sprintf (searchname, "%s.", filename);
-- }
-- if (!searchname)
-- return 0;
--
--#if __CYGWIN__
-- {
-- char wpath[MAX_PATH];
-- cygwin_conv_to_full_win32_path(searchname, wpath);
-- module = LoadLibrary(wpath);
-- }
--#else
-- module = LoadLibrary (searchname);
--#endif
-- LT_DLFREE (searchname);
--
-- /* libltdl expects this function to fail if it is unable
-- to physically load the library. Sadly, LoadLibrary
-- will search the loaded libraries for a match and return
-- one of them if the path search load fails.
--
-- We check whether LoadLibrary is returning a handle to
-- an already loaded module, and simulate failure if we
-- find one. */
-- LT_DLMUTEX_LOCK ();
-- cur = handles;
-- while (cur)
-- {
-- if (!cur->module)
-- {
-- cur = 0;
-- break;
-- }
--
-- if (cur->module == module)
-- {
-- break;
-- }
--
-- cur = cur->next;
-- }
-- LT_DLMUTEX_UNLOCK ();
--
-- if (cur || !module)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (CANNOT_OPEN));
-- module = 0;
-- }
--
-- return module;
--}
--
--static int
--sys_wll_close (lt_user_data loader_data, lt_module module)
--{
-- int errors = 0;
--
-- if (FreeLibrary(module) == 0)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (CANNOT_CLOSE));
-- ++errors;
-- }
--
-- return errors;
--}
--
--static lt_ptr
--sys_wll_sym (
-- lt_user_data loader_data,
-- lt_module module,
-- const char *symbol)
--{
-- lt_ptr address = GetProcAddress (module, symbol);
--
-- if (!address)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (SYMBOL_NOT_FOUND));
-- }
--
-- return address;
--}
--
--static struct lt_user_dlloader sys_wll = {
-- 0, sys_wll_open, sys_wll_close, sys_wll_sym, 0, 0
--};
--
--#endif /* __WINDOWS__ */
--
--
--
--\f
--/* --- LOAD_ADD_ON() INTERFACE LOADER --- */
--
--
--#ifdef __BEOS__
--
--/* dynamic linking for BeOS */
--
--#include <kernel/image.h>
--
--static lt_module
--sys_bedl_open (lt_user_data loader_data, const char *filename)
--{
-- image_id image = 0;
--
-- if (filename)
-- {
-- image = load_add_on (filename);
-- }
-- else
-- {
-- image_info info;
-- int32 cookie = 0;
-- if (get_next_image_info (0, &cookie, &info) == B_OK)
-- image = load_add_on (info.name);
-- }
--
-- if (image <= 0)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (CANNOT_OPEN));
-- image = 0;
-- }
--
-- return (lt_module) image;
--}
--
--static int
--sys_bedl_close (lt_user_data loader_data, lt_module module)
--{
-- int errors = 0;
--
-- if (unload_add_on ((image_id) module) != B_OK)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (CANNOT_CLOSE));
-- ++errors;
-- }
--
-- return errors;
--}
--
--static lt_ptr
--sys_bedl_sym (
-- lt_user_data loader_data,
-- lt_module module,
-- const char *symbol)
--{
-- lt_ptr address = 0;
-- image_id image = (image_id) module;
--
-- if (get_image_symbol (image, symbol, B_SYMBOL_TYPE_ANY, address) != B_OK)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (SYMBOL_NOT_FOUND));
-- address = 0;
-- }
--
-- return address;
--}
--
--static struct lt_user_dlloader sys_bedl = {
-- 0, sys_bedl_open, sys_bedl_close, sys_bedl_sym, 0, 0
--};
--
--#endif /* __BEOS__ */
--
--
--
--\f
--/* --- DLD_LINK() INTERFACE LOADER --- */
--
--
--#if HAVE_DLD
--
--/* dynamic linking with dld */
--
--#if HAVE_DLD_H
--#include <dld.h>
--#endif
--
--static lt_module
--sys_dld_open (lt_user_data loader_data, const char *filename)
--{
-- lt_module module = strdup (filename);
--
-- if (dld_link (filename) != 0)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (CANNOT_OPEN));
-- LT_DLFREE (module);
-- module = 0;
-- }
--
-- return module;
--}
--
--static int
--sys_dld_close (lt_user_data loader_data, lt_module module)
--{
-- int errors = 0;
--
-- if (dld_unlink_by_file ((char*)(module), 1) != 0)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (CANNOT_CLOSE));
-- ++errors;
-- }
-- else
-- {
-- LT_DLFREE (module);
-- }
--
-- return errors;
--}
--
--static lt_ptr
--sys_dld_sym (
-- lt_user_data loader_data,
-- lt_module module,
-- const char *symbol)
--{
-- lt_ptr address = dld_get_func (symbol);
--
-- if (!address)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (SYMBOL_NOT_FOUND));
-- }
--
-- return address;
--}
--
--static struct lt_user_dlloader sys_dld = {
-- 0, sys_dld_open, sys_dld_close, sys_dld_sym, 0, 0
--};
--
--#endif /* HAVE_DLD */
--
--/* --- DYLD() MACOSX/DARWIN INTERFACE LOADER --- */
--#if HAVE_DYLD
--
--
--#if HAVE_MACH_O_DYLD_H
--#if !defined(__APPLE_CC__) && !defined(__MWERKS__) && !defined(__private_extern__)
--/* Is this correct? Does it still function properly? */
--#define __private_extern__ extern
--#endif
--# include <mach-o/dyld.h>
--#endif
--#include <mach-o/getsect.h>
--
--/* We have to put some stuff here that isn't in older dyld.h files */
--#ifndef ENUM_DYLD_BOOL
--# define ENUM_DYLD_BOOL
--# undef FALSE
--# undef TRUE
-- enum DYLD_BOOL {
-- FALSE,
-- TRUE
-- };
--#endif
--#ifndef LC_REQ_DYLD
--# define LC_REQ_DYLD 0x80000000
--#endif
--#ifndef LC_LOAD_WEAK_DYLIB
--# define LC_LOAD_WEAK_DYLIB (0x18 | LC_REQ_DYLD)
--#endif
--static const struct mach_header * (*ltdl_NSAddImage)(const char *image_name, unsigned long options) = 0;
--static NSSymbol (*ltdl_NSLookupSymbolInImage)(const struct mach_header *image,const char *symbolName, unsigned long options) = 0;
--static enum DYLD_BOOL (*ltdl_NSIsSymbolNameDefinedInImage)(const struct mach_header *image, const char *symbolName) = 0;
--static enum DYLD_BOOL (*ltdl_NSMakePrivateModulePublic)(NSModule module) = 0;
--
--#ifndef NSADDIMAGE_OPTION_NONE
--#define NSADDIMAGE_OPTION_NONE 0x0
--#endif
--#ifndef NSADDIMAGE_OPTION_RETURN_ON_ERROR
--#define NSADDIMAGE_OPTION_RETURN_ON_ERROR 0x1
--#endif
--#ifndef NSADDIMAGE_OPTION_WITH_SEARCHING
--#define NSADDIMAGE_OPTION_WITH_SEARCHING 0x2
--#endif
--#ifndef NSADDIMAGE_OPTION_RETURN_ONLY_IF_LOADED
--#define NSADDIMAGE_OPTION_RETURN_ONLY_IF_LOADED 0x4
--#endif
--#ifndef NSADDIMAGE_OPTION_MATCH_FILENAME_BY_INSTALLNAME
--#define NSADDIMAGE_OPTION_MATCH_FILENAME_BY_INSTALLNAME 0x8
--#endif
--#ifndef NSLOOKUPSYMBOLINIMAGE_OPTION_BIND
--#define NSLOOKUPSYMBOLINIMAGE_OPTION_BIND 0x0
--#endif
--#ifndef NSLOOKUPSYMBOLINIMAGE_OPTION_BIND_NOW
--#define NSLOOKUPSYMBOLINIMAGE_OPTION_BIND_NOW 0x1
--#endif
--#ifndef NSLOOKUPSYMBOLINIMAGE_OPTION_BIND_FULLY
--#define NSLOOKUPSYMBOLINIMAGE_OPTION_BIND_FULLY 0x2
--#endif
--#ifndef NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR
--#define NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR 0x4
--#endif
--
--
--static const char *
--lt_int_dyld_error(char* othererror)
--{
--/* return the dyld error string, or the passed in error string if none */
-- NSLinkEditErrors ler;
-- int lerno;
-- const char *errstr;
-- const char *file;
-- NSLinkEditError(&ler,&lerno,&file,&errstr);
-- if (!errstr || !strlen(errstr)) errstr = othererror;
-- return errstr;
--}
--
--static const struct mach_header *
--lt_int_dyld_get_mach_header_from_nsmodule(NSModule module)
--{
--/* There should probably be an apple dyld api for this */
-- int i=_dyld_image_count();
-- int j;
-- const char *modname=NSNameOfModule(module);
-- const struct mach_header *mh=NULL;
-- if (!modname) return NULL;
-- for (j = 0; j < i; j++)
-- {
-- if (!strcmp(_dyld_get_image_name(j),modname))
-- {
-- mh=_dyld_get_image_header(j);
-- break;
-- }
-- }
-- return mh;
--}
--
--static const char* lt_int_dyld_lib_install_name(const struct mach_header *mh)
--{
--/* NSAddImage is also used to get the loaded image, but it only works if the lib
-- is installed, for uninstalled libs we need to check the install_names against
-- each other. Note that this is still broken if DYLD_IMAGE_SUFFIX is set and a
-- different lib was loaded as a result
--*/
-- int j;
-- struct load_command *lc;
-- unsigned long offset = sizeof(struct mach_header);
-- const char* retStr=NULL;
-- for (j = 0; j < mh->ncmds; j++)
-- {
-- lc = (struct load_command*)(((unsigned long)mh) + offset);
-- if (LC_ID_DYLIB == lc->cmd)
-- {
-- retStr=(char*)(((struct dylib_command*)lc)->dylib.name.offset +
-- (unsigned long)lc);
-- }
-- offset += lc->cmdsize;
-- }
-- return retStr;
--}
--
--static const struct mach_header *
--lt_int_dyld_match_loaded_lib_by_install_name(const char *name)
--{
-- int i=_dyld_image_count();
-- int j;
-- const struct mach_header *mh=NULL;
-- const char *id=NULL;
-- for (j = 0; j < i; j++)
-- {
-- id=lt_int_dyld_lib_install_name(_dyld_get_image_header(j));
-- if ((id) && (!strcmp(id,name)))
-- {
-- mh=_dyld_get_image_header(j);
-- break;
-- }
-- }
-- return mh;
--}
--
--static NSSymbol
--lt_int_dyld_NSlookupSymbolInLinkedLibs(const char *symbol, const struct mach_header *mh)
--{
-- /* Safe to assume our mh is good */
-- int j;
-- struct load_command *lc;
-- unsigned long offset = sizeof(struct mach_header);
-- NSSymbol retSym = 0;
-- const struct mach_header *mh1;
-- if ((ltdl_NSLookupSymbolInImage) && NSIsSymbolNameDefined(symbol) )
-- {
-- for (j = 0; j < mh->ncmds; j++)
-- {
-- lc = (struct load_command*)(((unsigned long)mh) + offset);
-- if ((LC_LOAD_DYLIB == lc->cmd) || (LC_LOAD_WEAK_DYLIB == lc->cmd))
-- {
-- mh1=lt_int_dyld_match_loaded_lib_by_install_name((char*)(((struct dylib_command*)lc)->dylib.name.offset +
-- (unsigned long)lc));
-- if (!mh1)
-- {
-- /* Maybe NSAddImage can find it */
-- mh1=ltdl_NSAddImage((char*)(((struct dylib_command*)lc)->dylib.name.offset +
-- (unsigned long)lc),
-- NSADDIMAGE_OPTION_RETURN_ONLY_IF_LOADED +
-- NSADDIMAGE_OPTION_WITH_SEARCHING +
-- NSADDIMAGE_OPTION_RETURN_ON_ERROR );
-- }
-- if (mh1)
-- {
-- retSym = ltdl_NSLookupSymbolInImage(mh1,
-- symbol,
-- NSLOOKUPSYMBOLINIMAGE_OPTION_BIND_NOW
-- | NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR
-- );
-- if (retSym) break;
-- }
-- }
-- offset += lc->cmdsize;
-- }
-- }
-- return retSym;
--}
--
--static int
--sys_dyld_init()
--{
-- int retCode = 0;
-- int err = 0;
-- if (!_dyld_present()) {
-- retCode=1;
-- }
-- else {
-- err = _dyld_func_lookup("__dyld_NSAddImage",(unsigned long*)<dl_NSAddImage);
-- err = _dyld_func_lookup("__dyld_NSLookupSymbolInImage",(unsigned long*)<dl_NSLookupSymbolInImage);
-- err = _dyld_func_lookup("__dyld_NSIsSymbolNameDefinedInImage",(unsigned long*)<dl_NSIsSymbolNameDefinedInImage);
-- err = _dyld_func_lookup("__dyld_NSMakePrivateModulePublic",(unsigned long*)<dl_NSMakePrivateModulePublic);
-- }
-- return retCode;
--}
--
--static lt_module
--sys_dyld_open (lt_user_data loader_data, const char *filename)
--{
-- lt_module module = 0;
-- NSObjectFileImage ofi = 0;
-- NSObjectFileImageReturnCode ofirc;
--
-- if (!filename)
-- return (lt_module)-1;
-- ofirc = NSCreateObjectFileImageFromFile(filename, &ofi);
-- switch (ofirc)
-- {
-- case NSObjectFileImageSuccess:
-- module = NSLinkModule(ofi, filename,
-- NSLINKMODULE_OPTION_RETURN_ON_ERROR
-- | NSLINKMODULE_OPTION_PRIVATE
-- | NSLINKMODULE_OPTION_BINDNOW);
-- NSDestroyObjectFileImage(ofi);
-- if (module)
-- ltdl_NSMakePrivateModulePublic(module);
-- break;
-- case NSObjectFileImageInappropriateFile:
-- if (ltdl_NSIsSymbolNameDefinedInImage && ltdl_NSLookupSymbolInImage)
-- {
-- module = (lt_module)ltdl_NSAddImage(filename, NSADDIMAGE_OPTION_RETURN_ON_ERROR);
-- break;
-- }
-- default:
-- LT_DLMUTEX_SETERROR (lt_int_dyld_error(LT_DLSTRERROR(CANNOT_OPEN)));
-- return 0;
-- }
-- if (!module) LT_DLMUTEX_SETERROR (lt_int_dyld_error(LT_DLSTRERROR(CANNOT_OPEN)));
-- return module;
--}
--
--static int
--sys_dyld_close (lt_user_data loader_data, lt_module module)
--{
-- int retCode = 0;
-- int flags = 0;
-- if (module == (lt_module)-1) return 0;
--#ifdef __BIG_ENDIAN__
-- if (((struct mach_header *)module)->magic == MH_MAGIC)
--#else
-- if (((struct mach_header *)module)->magic == MH_CIGAM)
--#endif
-- {
-- LT_DLMUTEX_SETERROR("Can not close a dylib");
-- retCode = 1;
-- }
-- else
-- {
--#if 1
--/* Currently, if a module contains c++ static destructors and it is unloaded, we
-- get a segfault in atexit(), due to compiler and dynamic loader differences of
-- opinion, this works around that.
--*/
-- if ((const struct section *)NULL !=
-- getsectbynamefromheader(lt_int_dyld_get_mach_header_from_nsmodule(module),
-- "__DATA","__mod_term_func"))
-- {
-- flags += NSUNLINKMODULE_OPTION_KEEP_MEMORY_MAPPED;
-- }
--#endif
--#ifdef __ppc__
-- flags += NSUNLINKMODULE_OPTION_RESET_LAZY_REFERENCES;
--#endif
-- if (!NSUnLinkModule(module,flags))
-- {
-- retCode=1;
-- LT_DLMUTEX_SETERROR (lt_int_dyld_error(LT_DLSTRERROR(CANNOT_CLOSE)));
-- }
-- }
--
-- return retCode;
--}
--
--static lt_ptr
--sys_dyld_sym (
-- lt_user_data loader_data,
-- lt_module module,
-- const char *symbol)
--{
-- lt_ptr address = 0;
-- NSSymbol *nssym = 0;
-- void *unused;
-- const struct mach_header *mh=NULL;
-- char saveError[256] = "Symbol not found";
-- if (module == (lt_module)-1)
-- {
-- _dyld_lookup_and_bind(symbol,(unsigned long*)&address,&unused);
-- return address;
-- }
--#ifdef __BIG_ENDIAN__
-- if (((struct mach_header *)module)->magic == MH_MAGIC)
--#else
-- if (((struct mach_header *)module)->magic == MH_CIGAM)
--#endif
-- {
-- if (ltdl_NSIsSymbolNameDefinedInImage && ltdl_NSLookupSymbolInImage)
-- {
-- mh=module;
-- if (ltdl_NSIsSymbolNameDefinedInImage((struct mach_header*)module,symbol))
-- {
-- nssym = ltdl_NSLookupSymbolInImage((struct mach_header*)module,
-- symbol,
-- NSLOOKUPSYMBOLINIMAGE_OPTION_BIND_NOW
-- | NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR
-- );
-- }
-- }
--
-- }
-- else {
-- nssym = NSLookupSymbolInModule(module, symbol);
-- }
-- if (!nssym)
-- {
-- strncpy(saveError, lt_int_dyld_error(LT_DLSTRERROR(SYMBOL_NOT_FOUND)), 255);
-- saveError[255] = 0;
-- if (!mh) mh=lt_int_dyld_get_mach_header_from_nsmodule(module);
-- nssym = lt_int_dyld_NSlookupSymbolInLinkedLibs(symbol,mh);
-- }
-- if (!nssym)
-- {
-- LT_DLMUTEX_SETERROR (saveError);
-- return NULL;
-- }
-- return NSAddressOfSymbol(nssym);
--}
--
--static struct lt_user_dlloader sys_dyld =
-- { "_", sys_dyld_open, sys_dyld_close, sys_dyld_sym, 0, 0 };
--
--
--#endif /* HAVE_DYLD */
--
--\f
--/* --- DLPREOPEN() INTERFACE LOADER --- */
--
--
--/* emulate dynamic linking using preloaded_symbols */
--
--typedef struct lt_dlsymlists_t
--{
-- struct lt_dlsymlists_t *next;
-- const lt_dlsymlist *syms;
--} lt_dlsymlists_t;
--
--static const lt_dlsymlist *default_preloaded_symbols = 0;
--static lt_dlsymlists_t *preloaded_symbols = 0;
--
--static int
--presym_init (lt_user_data loader_data)
--{
-- int errors = 0;
--
-- LT_DLMUTEX_LOCK ();
--
-- preloaded_symbols = 0;
-- if (default_preloaded_symbols)
-- {
-- errors = lt_dlpreload (default_preloaded_symbols);
-- }
--
-- LT_DLMUTEX_UNLOCK ();
--
-- return errors;
--}
--
--static int
--presym_free_symlists ()
--{
-- lt_dlsymlists_t *lists;
--
-- LT_DLMUTEX_LOCK ();
--
-- lists = preloaded_symbols;
-- while (lists)
-- {
-- lt_dlsymlists_t *tmp = lists;
--
-- lists = lists->next;
-- LT_DLFREE (tmp);
-- }
-- preloaded_symbols = 0;
--
-- LT_DLMUTEX_UNLOCK ();
--
-- return 0;
--}
--
--static int
--presym_exit (lt_user_data loader_data)
--{
-- presym_free_symlists ();
-- return 0;
--}
--
--static int
--presym_add_symlist (const lt_dlsymlist *preloaded)
--{
-- lt_dlsymlists_t *tmp;
-- lt_dlsymlists_t *lists;
-- int errors = 0;
--
-- LT_DLMUTEX_LOCK ();
--
-- lists = preloaded_symbols;
-- while (lists)
-- {
-- if (lists->syms == preloaded)
-- {
-- goto done;
-- }
-- lists = lists->next;
-- }
--
-- tmp = LT_EMALLOC (lt_dlsymlists_t, 1);
-- if (tmp)
-- {
-- memset (tmp, 0, sizeof(lt_dlsymlists_t));
-- tmp->syms = preloaded;
-- tmp->next = preloaded_symbols;
-- preloaded_symbols = tmp;
-- }
-- else
-- {
-- ++errors;
-- }
--
-- done:
-- LT_DLMUTEX_UNLOCK ();
-- return errors;
--}
--
--static lt_module
--presym_open (lt_user_data loader_data, const char *filename)
--{
-- lt_dlsymlists_t *lists;
-- lt_module module = (lt_module) 0;
--
-- LT_DLMUTEX_LOCK ();
-- lists = preloaded_symbols;
--
-- if (!lists)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (NO_SYMBOLS));
-- goto done;
-- }
--
-- /* Can't use NULL as the reflective symbol header, as NULL is
-- used to mark the end of the entire symbol list. Self-dlpreopened
-- symbols follow this magic number, chosen to be an unlikely
-- clash with a real module name. */
-- if (!filename)
-- {
-- filename = "@PROGRAM@";
-- }
--
-- while (lists)
-- {
-- const lt_dlsymlist *syms = lists->syms;
--
-- while (syms->name)
-- {
-- if (!syms->address && strcmp(syms->name, filename) == 0)
-- {
-- module = (lt_module) syms;
-- goto done;
-- }
-- ++syms;
-- }
--
-- lists = lists->next;
-- }
--
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (FILE_NOT_FOUND));
--
-- done:
-- LT_DLMUTEX_UNLOCK ();
-- return module;
--}
--
--static int
--presym_close (lt_user_data loader_data, lt_module module)
--{
-- /* Just to silence gcc -Wall */
-- module = 0;
-- return 0;
--}
--
--static lt_ptr
--presym_sym (
-- lt_user_data loader_data,
-- lt_module module,
-- const char *symbol)
--{
-- lt_dlsymlist *syms = (lt_dlsymlist*) module;
--
-- ++syms;
-- while (syms->address)
-- {
-- if (strcmp(syms->name, symbol) == 0)
-- {
-- return syms->address;
-- }
--
-- ++syms;
-- }
--
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (SYMBOL_NOT_FOUND));
--
-- return 0;
--}
--
--static struct lt_user_dlloader presym = {
-- 0, presym_open, presym_close, presym_sym, presym_exit, 0
--};
--
--
--
--
--\f
--/* --- DYNAMIC MODULE LOADING --- */
--
--
--/* The type of a function used at each iteration of foreach_dirinpath(). */
--typedef int foreach_callback_func LT_PARAMS((char *filename, lt_ptr data1,
-- lt_ptr data2));
--
--static int foreach_dirinpath LT_PARAMS((const char *search_path,
-- const char *base_name,
-- foreach_callback_func *func,
-- lt_ptr data1, lt_ptr data2));
--
--static int find_file_callback LT_PARAMS((char *filename, lt_ptr data,
-- lt_ptr ignored));
--static int find_handle_callback LT_PARAMS((char *filename, lt_ptr data,
-- lt_ptr ignored));
--static int foreachfile_callback LT_PARAMS((char *filename, lt_ptr data1,
-- lt_ptr data2));
--
--
--static int canonicalize_path LT_PARAMS((const char *path,
-- char **pcanonical));
--static int argzize_path LT_PARAMS((const char *path,
-- char **pargz,
-- size_t *pargz_len));
--static FILE *find_file LT_PARAMS((const char *search_path,
-- const char *base_name,
-- char **pdir));
--static lt_dlhandle *find_handle LT_PARAMS((const char *search_path,
-- const char *base_name,
-- lt_dlhandle *handle));
--static int find_module LT_PARAMS((lt_dlhandle *handle,
-- const char *dir,
-- const char *libdir,
-- const char *dlname,
-- const char *old_name,
-- int installed));
--static int free_vars LT_PARAMS((char *dlname, char *oldname,
-- char *libdir, char *deplibs));
--static int load_deplibs LT_PARAMS((lt_dlhandle handle,
-- char *deplibs));
--static int trim LT_PARAMS((char **dest,
-- const char *str));
--static int try_dlopen LT_PARAMS((lt_dlhandle *handle,
-- const char *filename));
--static int tryall_dlopen LT_PARAMS((lt_dlhandle *handle,
-- const char *filename));
--static int unload_deplibs LT_PARAMS((lt_dlhandle handle));
--static int lt_argz_insert LT_PARAMS((char **pargz,
-- size_t *pargz_len,
-- char *before,
-- const char *entry));
--static int lt_argz_insertinorder LT_PARAMS((char **pargz,
-- size_t *pargz_len,
-- const char *entry));
--static int lt_argz_insertdir LT_PARAMS((char **pargz,
-- size_t *pargz_len,
-- const char *dirnam,
-- struct dirent *dp));
--static int lt_dlpath_insertdir LT_PARAMS((char **ppath,
-- char *before,
-- const char *dir));
--static int list_files_by_dir LT_PARAMS((const char *dirnam,
-- char **pargz,
-- size_t *pargz_len));
--static int file_not_found LT_PARAMS((void));
--
--static char *user_search_path= 0;
--static lt_dlloader *loaders = 0;
--static lt_dlhandle handles = 0;
--static int initialized = 0;
--
--/* Initialize libltdl. */
--int
--lt_dlinit ()
--{
-- int errors = 0;
--
-- LT_DLMUTEX_LOCK ();
--
-- /* Initialize only at first call. */
-- if (++initialized == 1)
-- {
-- handles = 0;
-- user_search_path = 0; /* empty search path */
--
--#if HAVE_LIBDL
-- errors += lt_dlloader_add (lt_dlloader_next (0), &sys_dl, "dlopen");
--#endif
--#if HAVE_SHL_LOAD
-- errors += lt_dlloader_add (lt_dlloader_next (0), &sys_shl, "dlopen");
--#endif
--#ifdef __WINDOWS__
-- errors += lt_dlloader_add (lt_dlloader_next (0), &sys_wll, "dlopen");
--#endif
--#ifdef __BEOS__
-- errors += lt_dlloader_add (lt_dlloader_next (0), &sys_bedl, "dlopen");
--#endif
--#if HAVE_DLD
-- errors += lt_dlloader_add (lt_dlloader_next (0), &sys_dld, "dld");
--#endif
--#if HAVE_DYLD
-- errors += lt_dlloader_add (lt_dlloader_next (0), &sys_dyld, "dyld");
-- errors += sys_dyld_init();
--#endif
-- errors += lt_dlloader_add (lt_dlloader_next (0), &presym, "dlpreload");
--
-- if (presym_init (presym.dlloader_data))
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INIT_LOADER));
-- ++errors;
-- }
-- else if (errors != 0)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (DLOPEN_NOT_SUPPORTED));
-- ++errors;
-- }
-- }
--
-- LT_DLMUTEX_UNLOCK ();
--
-- return errors;
--}
--
--int
--lt_dlpreload (const lt_dlsymlist *preloaded)
--{
-- int errors = 0;
--
-- if (preloaded)
-- {
-- errors = presym_add_symlist (preloaded);
-- }
-- else
-- {
-- presym_free_symlists();
--
-- LT_DLMUTEX_LOCK ();
-- if (default_preloaded_symbols)
-- {
-- errors = lt_dlpreload (default_preloaded_symbols);
-- }
-- LT_DLMUTEX_UNLOCK ();
-- }
--
-- return errors;
--}
--
--int
--lt_dlpreload_default (const lt_dlsymlist *preloaded)
--{
-- LT_DLMUTEX_LOCK ();
-- default_preloaded_symbols = preloaded;
-- LT_DLMUTEX_UNLOCK ();
-- return 0;
--}
--
--int
--lt_dlexit ()
--{
-- /* shut down libltdl */
-- lt_dlloader *loader;
-- int errors = 0;
--
-- LT_DLMUTEX_LOCK ();
-- loader = loaders;
--
-- if (!initialized)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (SHUTDOWN));
-- ++errors;
-- goto done;
-- }
--
-- /* shut down only at last call. */
-- if (--initialized == 0)
-- {
-- int level;
--
-- while (handles && LT_DLIS_RESIDENT (handles))
-- {
-- handles = handles->next;
-- }
--
-- /* close all modules */
-- for (level = 1; handles; ++level)
-- {
-- lt_dlhandle cur = handles;
-- int saw_nonresident = 0;
--
-- while (cur)
-- {
-- lt_dlhandle tmp = cur;
-- cur = cur->next;
-- if (!LT_DLIS_RESIDENT (tmp))
-- saw_nonresident = 1;
-- if (!LT_DLIS_RESIDENT (tmp) && tmp->info.ref_count <= level)
-- {
-- if (lt_dlclose (tmp))
-- {
-- ++errors;
-- }
-- }
-- }
-- /* done if only resident modules are left */
-- if (!saw_nonresident)
-- break;
-- }
--
-- /* close all loaders */
-- while (loader)
-- {
-- lt_dlloader *next = loader->next;
-- lt_user_data data = loader->dlloader_data;
-- if (loader->dlloader_exit && loader->dlloader_exit (data))
-- {
-- ++errors;
-- }
--
-- LT_DLMEM_REASSIGN (loader, next);
-- }
-- loaders = 0;
-- }
--
-- done:
-- LT_DLMUTEX_UNLOCK ();
-- return errors;
--}
--
--static int
--tryall_dlopen (lt_dlhandle *handle, const char *filename)
--{
-- lt_dlhandle cur;
-- lt_dlloader *loader;
-- const char *saved_error;
-- int errors = 0;
--
-- LT_DLMUTEX_GETERROR (saved_error);
-- LT_DLMUTEX_LOCK ();
--
-- cur = handles;
-- loader = loaders;
--
-- /* check whether the module was already opened */
-- while (cur)
-- {
-- /* try to dlopen the program itself? */
-- if (!cur->info.filename && !filename)
-- {
-- break;
-- }
--
-- if (cur->info.filename && filename
-- && strcmp (cur->info.filename, filename) == 0)
-- {
-- break;
-- }
--
-- cur = cur->next;
-- }
--
-- if (cur)
-- {
-- ++cur->info.ref_count;
-- *handle = cur;
-- goto done;
-- }
--
-- cur = *handle;
-- if (filename)
-- {
-- /* Comment out the check of file permissions using access.
-- This call seems to always return -1 with error EACCES.
-- */
-- /* We need to catch missing file errors early so that
-- file_not_found() can detect what happened.
-- if (access (filename, R_OK) != 0)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (FILE_NOT_FOUND));
-- ++errors;
-- goto done;
-- } */
--
-- cur->info.filename = lt_estrdup (filename);
-- if (!cur->info.filename)
-- {
-- ++errors;
-- goto done;
-- }
-- }
-- else
-- {
-- cur->info.filename = 0;
-- }
--
-- while (loader)
-- {
-- lt_user_data data = loader->dlloader_data;
--
-- cur->module = loader->module_open (data, filename);
--
-- if (cur->module != 0)
-- {
-- break;
-- }
-- loader = loader->next;
-- }
--
-- if (!loader)
-- {
-- LT_DLFREE (cur->info.filename);
-- ++errors;
-- goto done;
-- }
--
-- cur->loader = loader;
-- LT_DLMUTEX_SETERROR (saved_error);
--
-- done:
-- LT_DLMUTEX_UNLOCK ();
--
-- return errors;
--}
--
--static int
--tryall_dlopen_module (
-- lt_dlhandle *handle,
-- const char *prefix,
-- const char *dirname,
-- const char *dlname)
--{
-- int error = 0;
-- char *filename = 0;
-- size_t filename_len = 0;
-- size_t dirname_len = LT_STRLEN (dirname);
--
-- assert (handle);
-- assert (dirname);
-- assert (dlname);
--#ifdef LT_DIRSEP_CHAR
-- /* Only canonicalized names (i.e. with DIRSEP chars already converted)
-- should make it into this function: */
-- assert (strchr (dirname, LT_DIRSEP_CHAR) == 0);
--#endif
--
-- if (dirname_len > 0)
-- if (dirname[dirname_len -1] == '/')
-- --dirname_len;
-- filename_len = dirname_len + 1 + LT_STRLEN (dlname);
--
-- /* Allocate memory, and combine DIRNAME and MODULENAME into it.
-- The PREFIX (if any) is handled below. */
-- filename = LT_EMALLOC (char, dirname_len + 1 + filename_len + 1);
-- if (!filename)
-- return 1;
--
-- sprintf (filename, "%.*s/%s", (int) dirname_len, dirname, dlname);
--
-- /* Now that we have combined DIRNAME and MODULENAME, if there is
-- also a PREFIX to contend with, simply recurse with the arguments
-- shuffled. Otherwise, attempt to open FILENAME as a module. */
-- if (prefix)
-- {
-- error += tryall_dlopen_module (handle,
-- (const char *) 0, prefix, filename);
-- }
-- else if (tryall_dlopen (handle, filename) != 0)
-- {
-- ++error;
-- }
--
-- LT_DLFREE (filename);
-- return error;
--}
--
--static int
--find_module (
-- lt_dlhandle *handle,
-- const char *dir,
-- const char *libdir,
-- const char *dlname,
-- const char *old_name,
-- int installed)
--{
-- /* Try to open the old library first; if it was dlpreopened,
-- we want the preopened version of it, even if a dlopenable
-- module is available. */
-- if (old_name && tryall_dlopen (handle, old_name) == 0)
-- {
-- return 0;
-- }
--
-- /* Try to open the dynamic library. */
-- if (dlname)
-- {
-- /* try to open the installed module */
-- if (installed && libdir)
-- {
-- if (tryall_dlopen_module (handle,
-- (const char *) 0, libdir, dlname) == 0)
-- return 0;
-- }
--
-- /* try to open the not-installed module */
-- if (!installed)
-- {
-- if (tryall_dlopen_module (handle, dir, objdir, dlname) == 0)
-- return 0;
-- }
--
-- /* maybe it was moved to another directory */
-- {
-- if (tryall_dlopen_module (handle,
-- (const char *) 0, dir, dlname) == 0)
-- return 0;
-- }
-- }
--
-- return 1;
--}
--
--
--static int
--canonicalize_path (
-- const char *path,
-- char **pcanonical)
--{
-- char *canonical = 0;
--
-- assert (path && *path);
-- assert (pcanonical);
--
-- canonical = LT_EMALLOC (char, 1+ LT_STRLEN (path));
-- if (!canonical)
-- return 1;
--
-- {
-- size_t dest = 0;
-- size_t src;
-- for (src = 0; path[src] != LT_EOS_CHAR; ++src)
-- {
-- /* Path separators are not copied to the beginning or end of
-- the destination, or if another separator would follow
-- immediately. */
-- if (path[src] == LT_PATHSEP_CHAR)
-- {
-- if ((dest == 0)
-- || (path[1+ src] == LT_PATHSEP_CHAR)
-- || (path[1+ src] == LT_EOS_CHAR))
-- continue;
-- }
--
-- /* Anything other than a directory separator is copied verbatim. */
-- if ((path[src] != '/')
--#ifdef LT_DIRSEP_CHAR
-- && (path[src] != LT_DIRSEP_CHAR)
--#endif
-- )
-- {
-- canonical[dest++] = path[src];
-- }
-- /* Directory separators are converted and copied only if they are
-- not at the end of a path -- i.e. before a path separator or
-- NULL terminator. */
-- else if ((path[1+ src] != LT_PATHSEP_CHAR)
-- && (path[1+ src] != LT_EOS_CHAR)
--#ifdef LT_DIRSEP_CHAR
-- && (path[1+ src] != LT_DIRSEP_CHAR)
--#endif
-- && (path[1+ src] != '/'))
-- {
-- canonical[dest++] = '/';
-- }
-- }
--
-- /* Add an end-of-string marker at the end. */
-- canonical[dest] = LT_EOS_CHAR;
-- }
--
-- /* Assign new value. */
-- *pcanonical = canonical;
--
-- return 0;
--}
--
--static int
--argzize_path (
-- const char *path,
-- char **pargz,
-- size_t *pargz_len)
--{
-- error_t error;
--
-- assert (path);
-- assert (pargz);
-- assert (pargz_len);
--
-- if ((error = argz_create_sep (path, LT_PATHSEP_CHAR, pargz, pargz_len)))
-- {
-- switch (error)
-- {
-- case ENOMEM:
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (NO_MEMORY));
-- break;
-- default:
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (UNKNOWN));
-- break;
-- }
--
-- return 1;
-- }
--
-- return 0;
--}
--
--/* Repeatedly call FUNC with each LT_PATHSEP_CHAR delimited element
-- of SEARCH_PATH and references to DATA1 and DATA2, until FUNC returns
-- non-zero or all elements are exhausted. If BASE_NAME is non-NULL,
-- it is appended to each SEARCH_PATH element before FUNC is called. */
--static int
--foreach_dirinpath (
-- const char *search_path,
-- const char *base_name,
-- foreach_callback_func *func,
-- lt_ptr data1,
-- lt_ptr data2)
--{
-- int result = 0;
-- int filenamesize = 0;
-- size_t lenbase = LT_STRLEN (base_name);
-- size_t argz_len = 0;
-- char *argz = 0;
-- char *filename = 0;
-- char *canonical = 0;
--
-- LT_DLMUTEX_LOCK ();
--
-- if (!search_path || !*search_path)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (FILE_NOT_FOUND));
-- goto cleanup;
-- }
--
-- if (canonicalize_path (search_path, &canonical) != 0)
-- goto cleanup;
--
-- if (argzize_path (canonical, &argz, &argz_len) != 0)
-- goto cleanup;
--
-- {
-- char *dir_name = 0;
-- while ((dir_name = argz_next (argz, argz_len, dir_name)))
-- {
-- size_t lendir = LT_STRLEN (dir_name);
--
-- if (lendir +1 +lenbase >= filenamesize)
-- {
-- LT_DLFREE (filename);
-- filenamesize = lendir +1 +lenbase +1; /* "/d" + '/' + "f" + '\0' */
-- filename = LT_EMALLOC (char, filenamesize);
-- if (!filename)
-- goto cleanup;
-- }
--
-- assert (filenamesize > lendir);
-- strcpy (filename, dir_name);
--
-- if (base_name && *base_name)
-- {
-- if (filename[lendir -1] != '/')
-- filename[lendir++] = '/';
-- strcpy (filename +lendir, base_name);
-- }
--
-- if ((result = (*func) (filename, data1, data2)))
-- {
-- break;
-- }
-- }
-- }
--
-- cleanup:
-- LT_DLFREE (argz);
-- LT_DLFREE (canonical);
-- LT_DLFREE (filename);
--
-- LT_DLMUTEX_UNLOCK ();
--
-- return result;
--}
--
--/* If FILEPATH can be opened, store the name of the directory component
-- in DATA1, and the opened FILE* structure address in DATA2. Otherwise
-- DATA1 is unchanged, but DATA2 is set to a pointer to NULL. */
--static int
--find_file_callback (
-- char *filename,
-- lt_ptr data1,
-- lt_ptr data2)
--{
-- char **pdir = (char **) data1;
-- FILE **pfile = (FILE **) data2;
-- int is_done = 0;
--
-- assert (filename && *filename);
-- assert (pdir);
-- assert (pfile);
--
-- if ((*pfile = fopen (filename, LT_READTEXT_MODE)))
-- {
-- char *dirend = strrchr (filename, '/');
--
-- if (dirend > filename)
-- *dirend = LT_EOS_CHAR;
--
-- LT_DLFREE (*pdir);
-- *pdir = lt_estrdup (filename);
-- is_done = (*pdir == 0) ? -1 : 1;
-- }
--
-- return is_done;
--}
--
--static FILE *
--find_file (
-- const char *search_path,
-- const char *base_name,
-- char **pdir)
--{
-- FILE *file = 0;
--
-- foreach_dirinpath (search_path, base_name, find_file_callback, pdir, &file);
--
-- return file;
--}
--
--static int
--find_handle_callback (
-- char *filename,
-- lt_ptr data,
-- lt_ptr ignored)
--{
-- lt_dlhandle *handle = (lt_dlhandle *) data;
-- int notfound = access (filename, R_OK);
--
-- /* Bail out if file cannot be read... */
-- if (notfound)
-- return 0;
--
-- /* Try to dlopen the file, but do not continue searching in any
-- case. */
-- if (tryall_dlopen (handle, filename) != 0)
-- *handle = 0;
--
-- return 1;
--}
--
--/* If HANDLE was found return it, otherwise return 0. If HANDLE was
-- found but could not be opened, *HANDLE will be set to 0. */
--static lt_dlhandle *
--find_handle (
-- const char *search_path,
-- const char *base_name,
-- lt_dlhandle *handle)
--{
-- if (!search_path)
-- return 0;
--
-- if (!foreach_dirinpath (search_path, base_name, find_handle_callback,
-- handle, 0))
-- return 0;
--
-- return handle;
--}
--
--static int
--load_deplibs (
-- lt_dlhandle handle,
-- char *deplibs)
--{
--#if LTDL_DLOPEN_DEPLIBS
-- char *p, *save_search_path = 0;
-- int depcount = 0;
-- int i;
-- char **names = 0;
--#endif
-- int errors = 0;
--
-- handle->depcount = 0;
--
--#if LTDL_DLOPEN_DEPLIBS
-- if (!deplibs)
-- {
-- return errors;
-- }
-- ++errors;
--
-- LT_DLMUTEX_LOCK ();
-- if (user_search_path)
-- {
-- save_search_path = lt_estrdup (user_search_path);
-- if (!save_search_path)
-- goto cleanup;
-- }
--
-- /* extract search paths and count deplibs */
-- p = deplibs;
-- while (*p)
-- {
-- if (!isspace ((int) *p))
-- {
-- char *end = p+1;
-- while (*end && !isspace((int) *end))
-- {
-- ++end;
-- }
--
-- if (strncmp(p, "-L", 2) == 0 || strncmp(p, "-R", 2) == 0)
-- {
-- char save = *end;
-- *end = 0; /* set a temporary string terminator */
-- if (lt_dladdsearchdir(p+2))
-- {
-- goto cleanup;
-- }
-- *end = save;
-- }
-- else
-- {
-- ++depcount;
-- }
--
-- p = end;
-- }
-- else
-- {
-- ++p;
-- }
-- }
--
-- /* restore the old search path */
-- LT_DLFREE (user_search_path);
-- user_search_path = save_search_path;
--
-- LT_DLMUTEX_UNLOCK ();
--
-- if (!depcount)
-- {
-- errors = 0;
-- goto cleanup;
-- }
--
-- names = LT_EMALLOC (char *, depcount * sizeof (char*));
-- if (!names)
-- goto cleanup;
--
-- /* now only extract the actual deplibs */
-- depcount = 0;
-- p = deplibs;
-- while (*p)
-- {
-- if (isspace ((int) *p))
-- {
-- ++p;
-- }
-- else
-- {
-- char *end = p+1;
-- while (*end && !isspace ((int) *end))
-- {
-- ++end;
-- }
--
-- if (strncmp(p, "-L", 2) != 0 && strncmp(p, "-R", 2) != 0)
-- {
-- char *name;
-- char save = *end;
-- *end = 0; /* set a temporary string terminator */
-- if (strncmp(p, "-l", 2) == 0)
-- {
-- size_t name_len = 3+ /* "lib" */ LT_STRLEN (p + 2);
-- name = LT_EMALLOC (char, 1+ name_len);
-- if (name)
-- sprintf (name, "lib%s", p+2);
-- }
-- else
-- name = lt_estrdup(p);
--
-- if (!name)
-- goto cleanup_names;
--
-- names[depcount++] = name;
-- *end = save;
-- }
-- p = end;
-- }
-- }
--
-- /* load the deplibs (in reverse order)
-- At this stage, don't worry if the deplibs do not load correctly,
-- they may already be statically linked into the loading application
-- for instance. There will be a more enlightening error message
-- later on if the loaded module cannot resolve all of its symbols. */
-- if (depcount)
-- {
-- int j = 0;
--
-- handle->deplibs = (lt_dlhandle*) LT_EMALLOC (lt_dlhandle *, depcount);
-- if (!handle->deplibs)
-- goto cleanup;
--
-- for (i = 0; i < depcount; ++i)
-- {
-- handle->deplibs[j] = lt_dlopenext(names[depcount-1-i]);
-- if (handle->deplibs[j])
-- {
-- ++j;
-- }
-- }
--
-- handle->depcount = j; /* Number of successfully loaded deplibs */
-- errors = 0;
-- }
--
-- cleanup_names:
-- for (i = 0; i < depcount; ++i)
-- {
-- LT_DLFREE (names[i]);
-- }
--
-- cleanup:
-- LT_DLFREE (names);
--#endif
--
-- return errors;
--}
--
--static int
--unload_deplibs (
-- lt_dlhandle handle)
--{
-- int i;
-- int errors = 0;
--
-- if (handle->depcount)
-- {
-- for (i = 0; i < handle->depcount; ++i)
-- {
-- if (!LT_DLIS_RESIDENT (handle->deplibs[i]))
-- {
-- errors += lt_dlclose (handle->deplibs[i]);
-- }
-- }
-- }
--
-- return errors;
--}
--
--static int
--trim (
-- char **dest,
-- const char *str)
--{
-- /* remove the leading and trailing "'" from str
-- and store the result in dest */
-- const char *end = strrchr (str, '\'');
-- size_t len = LT_STRLEN (str);
-- char *tmp;
--
-- LT_DLFREE (*dest);
--
-- if (len > 3 && str[0] == '\'')
-- {
-- tmp = LT_EMALLOC (char, end - str);
-- if (!tmp)
-- return 1;
--
-- strncpy(tmp, &str[1], (end - str) - 1);
-- tmp[len-3] = LT_EOS_CHAR;
-- *dest = tmp;
-- }
-- else
-- {
-- *dest = 0;
-- }
--
-- return 0;
--}
--
--static int
--free_vars (
-- char *dlname,
-- char *oldname,
-- char *libdir,
-- char *deplibs)
--{
-- LT_DLFREE (dlname);
-- LT_DLFREE (oldname);
-- LT_DLFREE (libdir);
-- LT_DLFREE (deplibs);
--
-- return 0;
--}
--
--static int
--try_dlopen (
-- lt_dlhandle *phandle,
-- const char *filename)
--{
-- const char * ext = 0;
-- const char * saved_error = 0;
-- char * canonical = 0;
-- char * base_name = 0;
-- char * dir = 0;
-- char * name = 0;
-- int errors = 0;
-- lt_dlhandle newhandle;
--
-- assert (phandle);
-- assert (*phandle == 0);
--
-- LT_DLMUTEX_GETERROR (saved_error);
--
-- /* dlopen self? */
-- if (!filename)
-- {
-- *phandle = (lt_dlhandle) LT_EMALLOC (struct lt_dlhandle_struct, 1);
-- if (*phandle == 0)
-- return 1;
--
-- memset (*phandle, 0, sizeof(struct lt_dlhandle_struct));
-- newhandle = *phandle;
--
-- /* lt_dlclose()ing yourself is very bad! Disallow it. */
-- LT_DLSET_FLAG (*phandle, LT_DLRESIDENT_FLAG);
--
-- if (tryall_dlopen (&newhandle, 0) != 0)
-- {
-- LT_DLFREE (*phandle);
-- return 1;
-- }
--
-- goto register_handle;
-- }
--
-- assert (filename && *filename);
--
-- /* Doing this immediately allows internal functions to safely
-- assume only canonicalized paths are passed. */
-- if (canonicalize_path (filename, &canonical) != 0)
-- {
-- ++errors;
-- goto cleanup;
-- }
--
-- /* If the canonical module name is a path (relative or absolute)
-- then split it into a directory part and a name part. */
-- base_name = strrchr (canonical, '/');
-- if (base_name)
-- {
-- size_t dirlen = (1+ base_name) - canonical;
--
-- dir = LT_EMALLOC (char, 1+ dirlen);
-- if (!dir)
-- {
-- ++errors;
-- goto cleanup;
-- }
--
-- strncpy (dir, canonical, dirlen);
-- dir[dirlen] = LT_EOS_CHAR;
--
-- ++base_name;
-- }
-- else
-- LT_DLMEM_REASSIGN (base_name, canonical);
--
-- assert (base_name && *base_name);
--
-- /* Check whether we are opening a libtool module (.la extension). */
-- ext = strrchr (base_name, '.');
-- if (ext && strcmp (ext, archive_ext) == 0)
-- {
-- /* this seems to be a libtool module */
-- FILE * file = 0;
-- char * dlname = 0;
-- char * old_name = 0;
-- char * libdir = 0;
-- char * deplibs = 0;
-- char * line = 0;
-- size_t line_len;
--
-- /* if we can't find the installed flag, it is probably an
-- installed libtool archive, produced with an old version
-- of libtool */
-- int installed = 1;
--
-- /* extract the module name from the file name */
-- name = LT_EMALLOC (char, ext - base_name + 1);
-- if (!name)
-- {
-- ++errors;
-- goto cleanup;
-- }
--
-- /* canonicalize the module name */
-- {
-- size_t i;
-- for (i = 0; i < ext - base_name; ++i)
-- {
-- if (isalnum ((int)(base_name[i])))
-- {
-- name[i] = base_name[i];
-- }
-- else
-- {
-- name[i] = '_';
-- }
-- }
-- name[ext - base_name] = LT_EOS_CHAR;
-- }
--
-- /* Now try to open the .la file. If there is no directory name
-- component, try to find it first in user_search_path and then other
-- prescribed paths. Otherwise (or in any case if the module was not
-- yet found) try opening just the module name as passed. */
-- if (!dir)
-- {
-- const char *search_path;
--
-- LT_DLMUTEX_LOCK ();
-- search_path = user_search_path;
-- if (search_path)
-- file = find_file (user_search_path, base_name, &dir);
-- LT_DLMUTEX_UNLOCK ();
--
-- if (!file)
-- {
-- search_path = getenv (LTDL_SEARCHPATH_VAR);
-- if (search_path)
-- file = find_file (search_path, base_name, &dir);
-- }
--
--#ifdef LTDL_SHLIBPATH_VAR
-- if (!file)
-- {
-- search_path = getenv (LTDL_SHLIBPATH_VAR);
-- if (search_path)
-- file = find_file (search_path, base_name, &dir);
-- }
--#endif
--#ifdef LTDL_SYSSEARCHPATH
-- if (!file && sys_search_path)
-- {
-- file = find_file (sys_search_path, base_name, &dir);
-- }
--#endif
-- }
-- if (!file)
-- {
-- file = fopen (filename, LT_READTEXT_MODE);
-- }
--
-- /* If we didn't find the file by now, it really isn't there. Set
-- the status flag, and bail out. */
-- if (!file)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (FILE_NOT_FOUND));
-- ++errors;
-- goto cleanup;
-- }
--
-- line_len = LT_FILENAME_MAX;
-- line = LT_EMALLOC (char, line_len);
-- if (!line)
-- {
-- fclose (file);
-- ++errors;
-- goto cleanup;
-- }
--
-- /* read the .la file */
-- while (!feof (file))
-- {
-- if (!fgets (line, (int) line_len, file))
-- {
-- break;
-- }
--
-- /* Handle the case where we occasionally need to read a line
-- that is longer than the initial buffer size. */
-- while ((line[LT_STRLEN(line) -1] != '\n') && (!feof (file)))
-- {
-- line = LT_DLREALLOC (char, line, line_len *2);
-- if (!fgets (&line[line_len -1], (int) line_len +1, file))
-- {
-- break;
-- }
-- line_len *= 2;
-- }
--
-- if (line[0] == '\n' || line[0] == '#')
-- {
-- continue;
-- }
--
--#undef STR_DLNAME
--#define STR_DLNAME "dlname="
-- if (strncmp (line, STR_DLNAME, sizeof (STR_DLNAME) - 1) == 0)
-- {
-- errors += trim (&dlname, &line[sizeof (STR_DLNAME) - 1]);
-- }
--
--#undef STR_OLD_LIBRARY
--#define STR_OLD_LIBRARY "old_library="
-- else if (strncmp (line, STR_OLD_LIBRARY,
-- sizeof (STR_OLD_LIBRARY) - 1) == 0)
-- {
-- errors += trim (&old_name, &line[sizeof (STR_OLD_LIBRARY) - 1]);
-- }
--#undef STR_LIBDIR
--#define STR_LIBDIR "libdir="
-- else if (strncmp (line, STR_LIBDIR, sizeof (STR_LIBDIR) - 1) == 0)
-- {
-- errors += trim (&libdir, &line[sizeof(STR_LIBDIR) - 1]);
-- }
--
--#undef STR_DL_DEPLIBS
--#define STR_DL_DEPLIBS "dependency_libs="
-- else if (strncmp (line, STR_DL_DEPLIBS,
-- sizeof (STR_DL_DEPLIBS) - 1) == 0)
-- {
-- errors += trim (&deplibs, &line[sizeof (STR_DL_DEPLIBS) - 1]);
-- }
-- else if (strcmp (line, "installed=yes\n") == 0)
-- {
-- installed = 1;
-- }
-- else if (strcmp (line, "installed=no\n") == 0)
-- {
-- installed = 0;
-- }
--
--#undef STR_LIBRARY_NAMES
--#define STR_LIBRARY_NAMES "library_names="
-- else if (! dlname && strncmp (line, STR_LIBRARY_NAMES,
-- sizeof (STR_LIBRARY_NAMES) - 1) == 0)
-- {
-- char *last_libname;
-- errors += trim (&dlname, &line[sizeof (STR_LIBRARY_NAMES) - 1]);
-- if (!errors
-- && dlname
-- && (last_libname = strrchr (dlname, ' ')) != 0)
-- {
-- last_libname = lt_estrdup (last_libname + 1);
-- if (!last_libname)
-- {
-- ++errors;
-- goto cleanup;
-- }
-- LT_DLMEM_REASSIGN (dlname, last_libname);
-- }
-- }
--
-- if (errors)
-- break;
-- }
--
-- fclose (file);
-- LT_DLFREE (line);
--
-- /* allocate the handle */
-- *phandle = (lt_dlhandle) LT_EMALLOC (struct lt_dlhandle_struct, 1);
-- if (*phandle == 0)
-- ++errors;
--
-- if (errors)
-- {
-- free_vars (dlname, old_name, libdir, deplibs);
-- LT_DLFREE (*phandle);
-- goto cleanup;
-- }
--
-- assert (*phandle);
--
-- memset (*phandle, 0, sizeof(struct lt_dlhandle_struct));
-- if (load_deplibs (*phandle, deplibs) == 0)
-- {
-- newhandle = *phandle;
-- /* find_module may replace newhandle */
-- if (find_module (&newhandle, dir, libdir, dlname, old_name, installed))
-- {
-- unload_deplibs (*phandle);
-- ++errors;
-- }
-- }
-- else
-- {
-- ++errors;
-- }
--
-- free_vars (dlname, old_name, libdir, deplibs);
-- if (errors)
-- {
-- LT_DLFREE (*phandle);
-- goto cleanup;
-- }
--
-- if (*phandle != newhandle)
-- {
-- unload_deplibs (*phandle);
-- }
-- }
-- else
-- {
-- /* not a libtool module */
-- *phandle = (lt_dlhandle) LT_EMALLOC (struct lt_dlhandle_struct, 1);
-- if (*phandle == 0)
-- {
-- ++errors;
-- goto cleanup;
-- }
--
-- memset (*phandle, 0, sizeof (struct lt_dlhandle_struct));
-- newhandle = *phandle;
--
-- /* If the module has no directory name component, try to find it
-- first in user_search_path and then other prescribed paths.
-- Otherwise (or in any case if the module was not yet found) try
-- opening just the module name as passed. */
-- if ((dir || (!find_handle (user_search_path, base_name, &newhandle)
-- && !find_handle (getenv (LTDL_SEARCHPATH_VAR), base_name,
-- &newhandle)
--#ifdef LTDL_SHLIBPATH_VAR
-- && !find_handle (getenv (LTDL_SHLIBPATH_VAR), base_name,
-- &newhandle)
--#endif
--#ifdef LTDL_SYSSEARCHPATH
-- && !find_handle (sys_search_path, base_name, &newhandle)
--#endif
-- )))
-- {
-- if (tryall_dlopen (&newhandle, filename) != 0)
-- {
-- newhandle = NULL;
-- }
-- }
--
-- if (!newhandle)
-- {
-- LT_DLFREE (*phandle);
-- ++errors;
-- goto cleanup;
-- }
-- }
--
-- register_handle:
-- LT_DLMEM_REASSIGN (*phandle, newhandle);
--
-- if ((*phandle)->info.ref_count == 0)
-- {
-- (*phandle)->info.ref_count = 1;
-- LT_DLMEM_REASSIGN ((*phandle)->info.name, name);
--
-- LT_DLMUTEX_LOCK ();
-- (*phandle)->next = handles;
-- handles = *phandle;
-- LT_DLMUTEX_UNLOCK ();
-- }
--
-- LT_DLMUTEX_SETERROR (saved_error);
--
-- cleanup:
-- LT_DLFREE (dir);
-- LT_DLFREE (name);
-- LT_DLFREE (canonical);
--
-- return errors;
--}
--
--lt_dlhandle
--lt_dlopen (
-- const char *filename)
--{
-- lt_dlhandle handle = 0;
--
-- /* Just incase we missed a code path in try_dlopen() that reports
-- an error, but forgets to reset handle... */
-- if (try_dlopen (&handle, filename) != 0)
-- return 0;
--
-- return handle;
--}
--
--/* If the last error messge store was `FILE_NOT_FOUND', then return
-- non-zero. */
--static int
--file_not_found ()
--{
-- const char *error = 0;
--
-- LT_DLMUTEX_GETERROR (error);
-- if (error == LT_DLSTRERROR (FILE_NOT_FOUND))
-- return 1;
--
-- return 0;
--}
--
--/* If FILENAME has an ARCHIVE_EXT or SHLIB_EXT extension, try to
-- open the FILENAME as passed. Otherwise try appending ARCHIVE_EXT,
-- and if a file is still not found try again with SHLIB_EXT appended
-- instead. */
--lt_dlhandle
--lt_dlopenext (
-- const char *filename)
--{
-- lt_dlhandle handle = 0;
-- char * tmp = 0;
-- char * ext = 0;
-- size_t len;
-- int errors = 0;
--
-- if (!filename)
-- {
-- return lt_dlopen (filename);
-- }
--
-- assert (filename);
--
-- len = LT_STRLEN (filename);
-- ext = strrchr (filename, '.');
--
-- /* If FILENAME already bears a suitable extension, there is no need
-- to try appending additional extensions. */
-- if (ext && ((strcmp (ext, archive_ext) == 0)
--#ifdef LTDL_SHLIB_EXT
-- || (strcmp (ext, shlib_ext) == 0)
--#endif
-- ))
-- {
-- return lt_dlopen (filename);
-- }
--
-- /* First try appending ARCHIVE_EXT. */
-- tmp = LT_EMALLOC (char, len + LT_STRLEN (archive_ext) + 1);
-- if (!tmp)
-- return 0;
--
-- strcpy (tmp, filename);
-- strcat (tmp, archive_ext);
-- errors = try_dlopen (&handle, tmp);
--
-- /* If we found FILENAME, stop searching -- whether we were able to
-- load the file as a module or not. If the file exists but loading
-- failed, it is better to return an error message here than to
-- report FILE_NOT_FOUND when the alternatives (foo.so etc) are not
-- in the module search path. */
-- if (handle || ((errors > 0) && !file_not_found ()))
-- {
-- LT_DLFREE (tmp);
-- return handle;
-- }
--
--#ifdef LTDL_SHLIB_EXT
-- /* Try appending SHLIB_EXT. */
-- if (LT_STRLEN (shlib_ext) > LT_STRLEN (archive_ext))
-- {
-- LT_DLFREE (tmp);
-- tmp = LT_EMALLOC (char, len + LT_STRLEN (shlib_ext) + 1);
-- if (!tmp)
-- return 0;
--
-- strcpy (tmp, filename);
-- }
-- else
-- {
-- tmp[len] = LT_EOS_CHAR;
-- }
--
-- strcat(tmp, shlib_ext);
-- errors = try_dlopen (&handle, tmp);
--
-- /* As before, if the file was found but loading failed, return now
-- with the current error message. */
-- if (handle || ((errors > 0) && !file_not_found ()))
-- {
-- LT_DLFREE (tmp);
-- return handle;
-- }
--#endif
--
-- /* Still here? Then we really did fail to locate any of the file
-- names we tried. */
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (FILE_NOT_FOUND));
-- LT_DLFREE (tmp);
-- return 0;
--}
--
--
--static int
--lt_argz_insert (
-- char **pargz,
-- size_t *pargz_len,
-- char *before,
-- const char *entry)
--{
-- error_t error;
--
-- if ((error = argz_insert (pargz, pargz_len, before, entry)))
-- {
-- switch (error)
-- {
-- case ENOMEM:
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (NO_MEMORY));
-- break;
-- default:
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (UNKNOWN));
-- break;
-- }
-- return 1;
-- }
--
-- return 0;
--}
--
--static int
--lt_argz_insertinorder (
-- char **pargz,
-- size_t *pargz_len,
-- const char *entry)
--{
-- char *before = 0;
--
-- assert (pargz);
-- assert (pargz_len);
-- assert (entry && *entry);
--
-- if (*pargz)
-- while ((before = argz_next (*pargz, *pargz_len, before)))
-- {
-- int cmp = strcmp (entry, before);
--
-- if (cmp < 0) break;
-- if (cmp == 0) return 0; /* No duplicates! */
-- }
--
-- return lt_argz_insert (pargz, pargz_len, before, entry);
--}
--
--static int
--lt_argz_insertdir (
-- char **pargz,
-- size_t *pargz_len,
-- const char *dirnam,
-- struct dirent *dp)
--{
-- char *buf = 0;
-- size_t buf_len = 0;
-- char *end = 0;
-- size_t end_offset = 0;
-- size_t dir_len = 0;
-- int errors = 0;
--
-- assert (pargz);
-- assert (pargz_len);
-- assert (dp);
--
-- dir_len = LT_STRLEN (dirnam);
-- end = dp->d_name + LT_D_NAMLEN(dp);
--
-- /* Ignore version numbers. */
-- {
-- char *p;
-- for (p = end; p -1 > dp->d_name; --p)
-- if (strchr (".0123456789", p[-1]) == 0)
-- break;
--
-- if (*p == '.')
-- end = p;
-- }
--
-- /* Ignore filename extension. */
-- {
-- char *p;
-- for (p = end -1; p > dp->d_name; --p)
-- if (*p == '.')
-- {
-- end = p;
-- break;
-- }
-- }
--
-- /* Prepend the directory name. */
-- end_offset = end - dp->d_name;
-- buf_len = dir_len + 1+ end_offset;
-- buf = LT_EMALLOC (char, 1+ buf_len);
-- if (!buf)
-- return ++errors;
--
-- assert (buf);
--
-- strcpy (buf, dirnam);
-- strcat (buf, "/");
-- strncat (buf, dp->d_name, end_offset);
-- buf[buf_len] = LT_EOS_CHAR;
--
-- /* Try to insert (in order) into ARGZ/ARGZ_LEN. */
-- if (lt_argz_insertinorder (pargz, pargz_len, buf) != 0)
-- ++errors;
--
-- LT_DLFREE (buf);
--
-- return errors;
--}
--
--static int
--list_files_by_dir (
-- const char *dirnam,
-- char **pargz,
-- size_t *pargz_len)
--{
-- DIR *dirp = 0;
-- int errors = 0;
--
-- assert (dirnam && *dirnam);
-- assert (pargz);
-- assert (pargz_len);
-- assert (dirnam[LT_STRLEN(dirnam) -1] != '/');
--
-- dirp = opendir (dirnam);
-- if (dirp)
-- {
-- struct dirent *dp = 0;
--
-- while ((dp = readdir (dirp)))
-- if (dp->d_name[0] != '.')
-- if (lt_argz_insertdir (pargz, pargz_len, dirnam, dp))
-- {
-- ++errors;
-- break;
-- }
--
-- closedir (dirp);
-- }
-- else
-- ++errors;
--
-- return errors;
--}
--
--
--/* If there are any files in DIRNAME, call the function passed in
-- DATA1 (with the name of each file and DATA2 as arguments). */
--static int
--foreachfile_callback (
-- char *dirname,
-- lt_ptr data1,
-- lt_ptr data2)
--{
-- int (*func) LT_PARAMS((const char *filename, lt_ptr data))
-- = (int (*) LT_PARAMS((const char *filename, lt_ptr data))) data1;
--
-- int is_done = 0;
-- char *argz = 0;
-- size_t argz_len = 0;
--
-- if (list_files_by_dir (dirname, &argz, &argz_len) != 0)
-- goto cleanup;
-- if (!argz)
-- goto cleanup;
--
-- {
-- char *filename = 0;
-- while ((filename = argz_next (argz, argz_len, filename)))
-- if ((is_done = (*func) (filename, data2)))
-- break;
-- }
--
-- cleanup:
-- LT_DLFREE (argz);
--
-- return is_done;
--}
--
--
--/* Call FUNC for each unique extensionless file in SEARCH_PATH, along
-- with DATA. The filenames passed to FUNC would be suitable for
-- passing to lt_dlopenext. The extensions are stripped so that
-- individual modules do not generate several entries (e.g. libfoo.la,
-- libfoo.so, libfoo.so.1, libfoo.so.1.0.0). If SEARCH_PATH is NULL,
-- then the same directories that lt_dlopen would search are examined. */
--int
--lt_dlforeachfile (
-- const char *search_path,
-- int (*func) LT_PARAMS ((const char *filename, lt_ptr data)),
-- lt_ptr data)
--{
-- int is_done = 0;
--
-- if (search_path)
-- {
-- /* If a specific path was passed, search only the directories
-- listed in it. */
-- is_done = foreach_dirinpath (search_path, 0,
-- foreachfile_callback, (void*)func, data);
-- }
-- else
-- {
-- /* Otherwise search the default paths. */
-- is_done = foreach_dirinpath (user_search_path, 0,
-- foreachfile_callback, (void*)func, data);
-- if (!is_done)
-- {
-- is_done = foreach_dirinpath (getenv("LTDL_LIBRARY_PATH"), 0,
-- foreachfile_callback, (void*)func, data);
-- }
--
--#ifdef LTDL_SHLIBPATH_VAR
-- if (!is_done)
-- {
-- is_done = foreach_dirinpath (getenv(LTDL_SHLIBPATH_VAR), 0,
-- foreachfile_callback, (void*)func, data);
-- }
--#endif
--#ifdef LTDL_SYSSEARCHPATH
-- if (!is_done)
-- {
-- is_done = foreach_dirinpath (getenv(LTDL_SYSSEARCHPATH), 0,
-- foreachfile_callback, (void*)func, data);
-- }
--#endif
-- }
--
-- return is_done;
--}
--
--int
--lt_dlclose (
-- lt_dlhandle handle)
--{
-- lt_dlhandle cur, last;
-- int errors = 0;
--
-- LT_DLMUTEX_LOCK ();
--
-- /* check whether the handle is valid */
-- last = cur = handles;
-- while (cur && handle != cur)
-- {
-- last = cur;
-- cur = cur->next;
-- }
--
-- if (!cur)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_HANDLE));
-- ++errors;
-- goto done;
-- }
--
-- handle->info.ref_count--;
--
-- /* Note that even with resident modules, we must track the ref_count
-- correctly incase the user decides to reset the residency flag
-- later (even though the API makes no provision for that at the
-- moment). */
-- if (handle->info.ref_count <= 0 && !LT_DLIS_RESIDENT (handle))
-- {
-- lt_user_data data = handle->loader->dlloader_data;
--
-- if (handle != handles)
-- {
-- last->next = handle->next;
-- }
-- else
-- {
-- handles = handle->next;
-- }
--
-- errors += handle->loader->module_close (data, handle->module);
-- errors += unload_deplibs(handle);
--
-- /* It is up to the callers to free the data itself. */
-- LT_DLFREE (handle->caller_data);
--
-- LT_DLFREE (handle->info.filename);
-- LT_DLFREE (handle->info.name);
-- LT_DLFREE (handle);
--
-- goto done;
-- }
--
-- if (LT_DLIS_RESIDENT (handle))
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (CLOSE_RESIDENT_MODULE));
-- ++errors;
-- }
--
-- done:
-- LT_DLMUTEX_UNLOCK ();
--
-- return errors;
--}
--
--lt_ptr
--lt_dlsym (
-- lt_dlhandle handle,
-- const char *symbol)
--{
-- size_t lensym;
-- char lsym[LT_SYMBOL_LENGTH];
-- char *sym;
-- lt_ptr address;
-- lt_user_data data;
--
-- if (!handle)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_HANDLE));
-- return 0;
-- }
--
-- if (!symbol)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (SYMBOL_NOT_FOUND));
-- return 0;
-- }
--
-- lensym = LT_STRLEN (symbol) + LT_STRLEN (handle->loader->sym_prefix)
-- + LT_STRLEN (handle->info.name);
--
-- if (lensym + LT_SYMBOL_OVERHEAD < LT_SYMBOL_LENGTH)
-- {
-- sym = lsym;
-- }
-- else
-- {
-- sym = LT_EMALLOC (char, lensym + LT_SYMBOL_OVERHEAD + 1);
-- if (!sym)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (BUFFER_OVERFLOW));
-- return 0;
-- }
-- }
--
-- data = handle->loader->dlloader_data;
-- if (handle->info.name)
-- {
-- const char *saved_error;
--
-- LT_DLMUTEX_GETERROR (saved_error);
--
-- /* this is a libtool module */
-- if (handle->loader->sym_prefix)
-- {
-- strcpy(sym, handle->loader->sym_prefix);
-- strcat(sym, handle->info.name);
-- }
-- else
-- {
-- strcpy(sym, handle->info.name);
-- }
--
-- strcat(sym, "_LTX_");
-- strcat(sym, symbol);
--
-- /* try "modulename_LTX_symbol" */
-- address = handle->loader->find_sym (data, handle->module, sym);
-- if (address)
-- {
-- if (sym != lsym)
-- {
-- LT_DLFREE (sym);
-- }
-- return address;
-- }
-- LT_DLMUTEX_SETERROR (saved_error);
-- }
--
-- /* otherwise try "symbol" */
-- if (handle->loader->sym_prefix)
-- {
-- strcpy(sym, handle->loader->sym_prefix);
-- strcat(sym, symbol);
-- }
-- else
-- {
-- strcpy(sym, symbol);
-- }
--
-- address = handle->loader->find_sym (data, handle->module, sym);
-- if (sym != lsym)
-- {
-- LT_DLFREE (sym);
-- }
--
-- return address;
--}
--
--const char *
--lt_dlerror ()
--{
-- const char *error;
--
-- LT_DLMUTEX_GETERROR (error);
-- LT_DLMUTEX_SETERROR (0);
--
-- return error ? error : NULL;
--}
--
--static int
--lt_dlpath_insertdir (
-- char **ppath,
-- char *before,
-- const char *dir)
--{
-- int errors = 0;
-- char *canonical = 0;
-- char *argz = 0;
-- size_t argz_len = 0;
--
-- assert (ppath);
-- assert (dir && *dir);
--
-- if (canonicalize_path (dir, &canonical) != 0)
-- {
-- ++errors;
-- goto cleanup;
-- }
--
-- assert (canonical && *canonical);
--
-- /* If *PPATH is empty, set it to DIR. */
-- if (*ppath == 0)
-- {
-- assert (!before); /* BEFORE cannot be set without PPATH. */
-- assert (dir); /* Without DIR, don't call this function! */
--
-- *ppath = lt_estrdup (dir);
-- if (*ppath == 0)
-- ++errors;
--
-- return errors;
-- }
--
-- assert (ppath && *ppath);
--
-- if (argzize_path (*ppath, &argz, &argz_len) != 0)
-- {
-- ++errors;
-- goto cleanup;
-- }
--
-- /* Convert BEFORE into an equivalent offset into ARGZ. This only works
-- if *PPATH is already canonicalized, and hence does not change length
-- with respect to ARGZ. We canonicalize each entry as it is added to
-- the search path, and don't call this function with (uncanonicalized)
-- user paths, so this is a fair assumption. */
-- if (before)
-- {
-- assert (*ppath <= before);
-- assert (before - *ppath <= strlen (*ppath));
--
-- before = before - *ppath + argz;
-- }
--
-- if (lt_argz_insert (&argz, &argz_len, before, dir) != 0)
-- {
-- ++errors;
-- goto cleanup;
-- }
--
-- argz_stringify (argz, argz_len, LT_PATHSEP_CHAR);
-- LT_DLMEM_REASSIGN (*ppath, argz);
--
-- cleanup:
-- LT_DLFREE (canonical);
-- LT_DLFREE (argz);
--
-- return errors;
--}
--
--int
--lt_dladdsearchdir (
-- const char *search_dir)
--{
-- int errors = 0;
--
-- if (search_dir && *search_dir)
-- {
-- LT_DLMUTEX_LOCK ();
-- if (lt_dlpath_insertdir (&user_search_path, 0, search_dir) != 0)
-- ++errors;
-- LT_DLMUTEX_UNLOCK ();
-- }
--
-- return errors;
--}
--
--int
--lt_dlinsertsearchdir (
-- const char *before,
-- const char *search_dir)
--{
-- int errors = 0;
--
-- if (before)
-- {
-- LT_DLMUTEX_LOCK ();
-- if ((before < user_search_path)
-- || (before >= user_search_path + LT_STRLEN (user_search_path)))
-- {
-- LT_DLMUTEX_UNLOCK ();
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_POSITION));
-- return 1;
-- }
-- LT_DLMUTEX_UNLOCK ();
-- }
--
-- if (search_dir && *search_dir)
-- {
-- LT_DLMUTEX_LOCK ();
-- if (lt_dlpath_insertdir (&user_search_path,
-- (char *) before, search_dir) != 0)
-- {
-- ++errors;
-- }
-- LT_DLMUTEX_UNLOCK ();
-- }
--
-- return errors;
--}
--
--int
--lt_dlsetsearchpath (
-- const char *search_path)
--{
-- int errors = 0;
--
-- LT_DLMUTEX_LOCK ();
-- LT_DLFREE (user_search_path);
-- LT_DLMUTEX_UNLOCK ();
--
-- if (!search_path || !LT_STRLEN (search_path))
-- {
-- return errors;
-- }
--
-- LT_DLMUTEX_LOCK ();
-- if (canonicalize_path (search_path, &user_search_path) != 0)
-- ++errors;
-- LT_DLMUTEX_UNLOCK ();
--
-- return errors;
--}
--
--const char *
--lt_dlgetsearchpath ()
--{
-- const char *saved_path;
--
-- LT_DLMUTEX_LOCK ();
-- saved_path = user_search_path;
-- LT_DLMUTEX_UNLOCK ();
--
-- return saved_path;
--}
--
--int
--lt_dlmakeresident (
-- lt_dlhandle handle)
--{
-- int errors = 0;
--
-- if (!handle)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_HANDLE));
-- ++errors;
-- }
-- else
-- {
-- LT_DLSET_FLAG (handle, LT_DLRESIDENT_FLAG);
-- }
--
-- return errors;
--}
--
--int
--lt_dlisresident (
-- lt_dlhandle handle)
--{
-- if (!handle)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_HANDLE));
-- return -1;
-- }
--
-- return LT_DLIS_RESIDENT (handle);
--}
--
--
--
--\f
--/* --- MODULE INFORMATION --- */
--
--const lt_dlinfo *
--lt_dlgetinfo (
-- lt_dlhandle handle)
--{
-- if (!handle)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_HANDLE));
-- return 0;
-- }
--
-- return &(handle->info);
--}
--
--lt_dlhandle
--lt_dlhandle_next (
-- lt_dlhandle place)
--{
-- return place ? place->next : handles;
--}
--
--int
--lt_dlforeach (
-- int (*func) LT_PARAMS((lt_dlhandle handle, lt_ptr data)),
-- lt_ptr data)
--{
-- int errors = 0;
-- lt_dlhandle cur;
--
-- LT_DLMUTEX_LOCK ();
--
-- cur = handles;
-- while (cur)
-- {
-- lt_dlhandle tmp = cur;
--
-- cur = cur->next;
-- if ((*func) (tmp, data))
-- {
-- ++errors;
-- break;
-- }
-- }
--
-- LT_DLMUTEX_UNLOCK ();
--
-- return errors;
--}
--
--lt_dlcaller_id
--lt_dlcaller_register ()
--{
-- static lt_dlcaller_id last_caller_id = 0;
-- int result;
--
-- LT_DLMUTEX_LOCK ();
-- result = ++last_caller_id;
-- LT_DLMUTEX_UNLOCK ();
--
-- return result;
--}
--
--lt_ptr
--lt_dlcaller_set_data (
-- lt_dlcaller_id key,
-- lt_dlhandle handle,
-- lt_ptr data)
--{
-- int n_elements = 0;
-- lt_ptr stale = (lt_ptr) 0;
-- int i;
--
-- /* This needs to be locked so that the caller data can be updated
-- simultaneously by different threads. */
-- LT_DLMUTEX_LOCK ();
--
-- if (handle->caller_data)
-- while (handle->caller_data[n_elements].key)
-- ++n_elements;
--
-- for (i = 0; i < n_elements; ++i)
-- {
-- if (handle->caller_data[i].key == key)
-- {
-- stale = handle->caller_data[i].data;
-- break;
-- }
-- }
--
-- /* Ensure that there is enough room in this handle's caller_data
-- array to accept a new element (and an empty end marker). */
-- if (i == n_elements)
-- {
-- lt_caller_data *temp
-- = LT_DLREALLOC (lt_caller_data, handle->caller_data, 2+ n_elements);
--
-- if (!temp)
-- {
-- stale = 0;
-- goto done;
-- }
--
-- handle->caller_data = temp;
--
-- /* We only need this if we needed to allocate a new caller_data. */
-- handle->caller_data[i].key = key;
-- handle->caller_data[1+ i].key = 0;
-- }
--
-- handle->caller_data[i].data = data;
--
-- done:
-- LT_DLMUTEX_UNLOCK ();
--
-- return stale;
--}
--
--lt_ptr
--lt_dlcaller_get_data (
-- lt_dlcaller_id key,
-- lt_dlhandle handle)
--{
-- lt_ptr result = (lt_ptr) 0;
--
-- /* This needs to be locked so that the caller data isn't updated by
-- another thread part way through this function. */
-- LT_DLMUTEX_LOCK ();
--
-- /* Locate the index of the element with a matching KEY. */
-- {
-- int i;
-- for (i = 0; handle->caller_data[i].key; ++i)
-- {
-- if (handle->caller_data[i].key == key)
-- {
-- result = handle->caller_data[i].data;
-- break;
-- }
-- }
-- }
--
-- LT_DLMUTEX_UNLOCK ();
--
-- return result;
--}
--
--
--\f
--/* --- USER MODULE LOADER API --- */
--
--
--int
--lt_dlloader_add (
-- lt_dlloader *place,
-- const struct lt_user_dlloader *dlloader,
-- const char *loader_name)
--{
-- int errors = 0;
-- lt_dlloader *node = 0, *ptr = 0;
--
-- if ((dlloader == 0) /* diagnose null parameters */
-- || (dlloader->module_open == 0)
-- || (dlloader->module_close == 0)
-- || (dlloader->find_sym == 0))
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_LOADER));
-- return 1;
-- }
--
-- /* Create a new dlloader node with copies of the user callbacks. */
-- node = LT_EMALLOC (lt_dlloader, 1);
-- if (!node)
-- return 1;
--
-- node->next = 0;
-- node->loader_name = loader_name;
-- node->sym_prefix = dlloader->sym_prefix;
-- node->dlloader_exit = dlloader->dlloader_exit;
-- node->module_open = dlloader->module_open;
-- node->module_close = dlloader->module_close;
-- node->find_sym = dlloader->find_sym;
-- node->dlloader_data = dlloader->dlloader_data;
--
-- LT_DLMUTEX_LOCK ();
-- if (!loaders)
-- {
-- /* If there are no loaders, NODE becomes the list! */
-- loaders = node;
-- }
-- else if (!place)
-- {
-- /* If PLACE is not set, add NODE to the end of the
-- LOADERS list. */
-- for (ptr = loaders; ptr->next; ptr = ptr->next)
-- {
-- /*NOWORK*/;
-- }
--
-- ptr->next = node;
-- }
-- else if (loaders == place)
-- {
-- /* If PLACE is the first loader, NODE goes first. */
-- node->next = place;
-- loaders = node;
-- }
-- else
-- {
-- /* Find the node immediately preceding PLACE. */
-- for (ptr = loaders; ptr->next != place; ptr = ptr->next)
-- {
-- /*NOWORK*/;
-- }
--
-- if (ptr->next != place)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_LOADER));
-- ++errors;
-- }
-- else
-- {
-- /* Insert NODE between PTR and PLACE. */
-- node->next = place;
-- ptr->next = node;
-- }
-- }
--
-- LT_DLMUTEX_UNLOCK ();
--
-- return errors;
--}
--
--int
--lt_dlloader_remove (
-- const char *loader_name)
--{
-- lt_dlloader *place = lt_dlloader_find (loader_name);
-- lt_dlhandle handle;
-- int errors = 0;
--
-- if (!place)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_LOADER));
-- return 1;
-- }
--
-- LT_DLMUTEX_LOCK ();
--
-- /* Fail if there are any open modules which use this loader. */
-- for (handle = handles; handle; handle = handle->next)
-- {
-- if (handle->loader == place)
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (REMOVE_LOADER));
-- ++errors;
-- goto done;
-- }
-- }
--
-- if (place == loaders)
-- {
-- /* PLACE is the first loader in the list. */
-- loaders = loaders->next;
-- }
-- else
-- {
-- /* Find the loader before the one being removed. */
-- lt_dlloader *prev;
-- for (prev = loaders; prev->next; prev = prev->next)
-- {
-- if (!strcmp (prev->next->loader_name, loader_name))
-- {
-- break;
-- }
-- }
--
-- place = prev->next;
-- prev->next = prev->next->next;
-- }
--
-- if (place->dlloader_exit)
-- {
-- errors = place->dlloader_exit (place->dlloader_data);
-- }
--
-- LT_DLFREE (place);
--
-- done:
-- LT_DLMUTEX_UNLOCK ();
--
-- return errors;
--}
--
--lt_dlloader *
--lt_dlloader_next (
-- lt_dlloader *place)
--{
-- lt_dlloader *next;
--
-- LT_DLMUTEX_LOCK ();
-- next = place ? place->next : loaders;
-- LT_DLMUTEX_UNLOCK ();
--
-- return next;
--}
--
--const char *
--lt_dlloader_name (
-- lt_dlloader *place)
--{
-- const char *name = 0;
--
-- if (place)
-- {
-- LT_DLMUTEX_LOCK ();
-- name = place ? place->loader_name : 0;
-- LT_DLMUTEX_UNLOCK ();
-- }
-- else
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_LOADER));
-- }
--
-- return name;
--}
--
--lt_user_data *
--lt_dlloader_data (
-- lt_dlloader *place)
--{
-- lt_user_data *data = 0;
--
-- if (place)
-- {
-- LT_DLMUTEX_LOCK ();
-- data = place ? &(place->dlloader_data) : 0;
-- LT_DLMUTEX_UNLOCK ();
-- }
-- else
-- {
-- LT_DLMUTEX_SETERROR (LT_DLSTRERROR (INVALID_LOADER));
-- }
--
-- return data;
--}
--
--lt_dlloader *
--lt_dlloader_find (
-- const char *loader_name)
--{
-- lt_dlloader *place = 0;
--
-- LT_DLMUTEX_LOCK ();
-- for (place = loaders; place; place = place->next)
-- {
-- if (strcmp (place->loader_name, loader_name) == 0)
-- {
-- break;
-- }
-- }
-- LT_DLMUTEX_UNLOCK ();
--
-- return place;
--}
--
--} // namespace scim
-diff -up scim-1.4.8/src/ltdl.h.fix-dlopen scim-1.4.8/src/ltdl.h
---- scim-1.4.8/src/ltdl.h.fix-dlopen 2008-11-02 14:42:36.000000000 +0800
-+++ scim-1.4.8/src/ltdl.h 2009-03-25 15:12:47.333072768 +0800
-@@ -1,369 +0,0 @@
--/* ltdl.h -- generic dlopen functions
-- Copyright (C) 1998-2000 Free Software Foundation, Inc.
-- Originally by Thomas Tanner <tanner@ffii.org>
-- This file is part of GNU Libtool.
--
--This library 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 it under the same
--distribution terms that you use for the rest of that program.
--
--This library 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 this library; if not, write to the Free
--Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
--02111-1307 USA
--*/
--
--/* Only include this header file once. */
--#ifndef LTDL_H
--#define LTDL_H 1
--
--#include <sys/types.h> /* for size_t declaration */
--namespace scim {
--
--\f
--/* --- MACROS FOR PORTABILITY --- */
--
--
--/* Saves on those hard to debug '\0' typos.... */
--#define LT_EOS_CHAR '\0'
--
--/* LTDL_BEGIN_C_DECLS should be used at the beginning of your declarations,
-- so that C++ compilers don't mangle their names. Use LTDL_END_C_DECLS at
-- the end of C declarations. */
--#ifdef __cplusplus
--# define LT_BEGIN_C_DECLS extern "C" {
--# define LT_END_C_DECLS }
--#else
--# define LT_BEGIN_C_DECLS /* empty */
--# define LT_END_C_DECLS /* empty */
--#endif
--
--//LT_BEGIN_C_DECLS
--
--
--/* LT_PARAMS is a macro used to wrap function prototypes, so that compilers
-- that don't understand ANSI C prototypes still work, and ANSI C
-- compilers can issue warnings about type mismatches. */
--#if defined (__STDC__) || defined (_AIX) || (defined (__mips) && defined (_SYSTYPE_SVR4)) || defined(WIN32) || defined(__cplusplus)
--# define LT_PARAMS(protos) protos
--# define lt_ptr void*
--#else
--# define LT_PARAMS(protos) ()
--# define lt_ptr char*
--#endif
--
--/* LT_STMT_START/END are used to create macros which expand to a
-- a single compound statement in a portable way. */
--#if defined (__GNUC__) && !defined (__STRICT_ANSI__) && !defined (__cplusplus)
--# define LT_STMT_START (void)(
--# define LT_STMT_END )
--#else
--# if (defined (sun) || defined (__sun__))
--# define LT_STMT_START if (1)
--# define LT_STMT_END else (void)0
--# else
--# define LT_STMT_START do
--# define LT_STMT_END while (0)
--# endif
--#endif
--
--/* LT_CONC creates a new concatenated symbol for the compiler
-- in a portable way. */
--#if defined(__STDC__) || defined(__cplusplus) || defined(_MSC_VER)
--# define LT_CONC(s,t) s##t
--#else
--# define LT_CONC(s,t) s/**/t
--#endif
--
--/* LT_STRLEN can be used safely on NULL pointers. */
--#define LT_STRLEN(s) (((s) && (s)[0]) ? strlen (s) : 0)
--
--
--\f
--/* --- WINDOWS SUPPORT --- */
--
--
--/* Canonicalise Windows and Cygwin recognition macros. */
--#ifdef __CYGWIN32__
--# ifndef __CYGWIN__
--# define __CYGWIN__ __CYGWIN32__
--# endif
--#endif
--#if defined(_WIN32) || defined(WIN32)
--# ifndef __WINDOWS__
--# ifdef _WIN32
--# define __WINDOWS__ _WIN32
--# else
--# ifdef WIN32
--# define __WINDOWS__ WIN32
--# endif
--# endif
--# endif
--#endif
--
--
--#ifdef __WINDOWS__
--# ifndef __CYGWIN__
--/* LT_DIRSEP_CHAR is accepted *in addition* to '/' as a directory
-- separator when it is set. */
--# define LT_DIRSEP_CHAR '\\'
--# define LT_PATHSEP_CHAR ';'
--# endif
--#endif
--#ifndef LT_PATHSEP_CHAR
--# define LT_PATHSEP_CHAR ':'
--#endif
--
--/* DLL building support on win32 hosts; mostly to workaround their
-- ridiculous implementation of data symbol exporting. */
--#ifndef LT_SCOPE
--# ifdef __WINDOWS__
--# ifdef DLL_EXPORT /* defined by libtool (if required) */
--# define LT_SCOPE __declspec(dllexport)
--# endif
--# ifdef LIBLTDL_DLL_IMPORT /* define if linking with this dll */
--# define LT_SCOPE extern __declspec(dllimport)
--# endif
--# endif
--# ifndef LT_SCOPE /* static linking or !__WINDOWS__ */
--# define LT_SCOPE extern
--# endif
--#endif
--
--
--#if defined(_MSC_VER) /* Visual Studio */
--# define R_OK 4
--#endif
--
--
--\f
--/* --- DYNAMIC MODULE LOADING API --- */
--
--
--typedef struct lt_dlhandle_struct *lt_dlhandle; /* A loaded module. */
--
--/* Initialisation and finalisation functions for libltdl. */
--LT_SCOPE int lt_dlinit LT_PARAMS((void));
--LT_SCOPE int lt_dlexit LT_PARAMS((void));
--
--/* Module search path manipulation. */
--LT_SCOPE int lt_dladdsearchdir LT_PARAMS((const char *search_dir));
--LT_SCOPE int lt_dlinsertsearchdir LT_PARAMS((const char *before,
-- const char *search_dir));
--LT_SCOPE int lt_dlsetsearchpath LT_PARAMS((const char *search_path));
--LT_SCOPE const char *lt_dlgetsearchpath LT_PARAMS((void));
--LT_SCOPE int lt_dlforeachfile LT_PARAMS((
-- const char *search_path,
-- int (*func) (const char *filename, lt_ptr data),
-- lt_ptr data));
--
--/* Portable libltdl versions of the system dlopen() API. */
--LT_SCOPE lt_dlhandle lt_dlopen LT_PARAMS((const char *filename));
--LT_SCOPE lt_dlhandle lt_dlopenext LT_PARAMS((const char *filename));
--LT_SCOPE lt_ptr lt_dlsym LT_PARAMS((lt_dlhandle handle,
-- const char *name));
--LT_SCOPE const char *lt_dlerror LT_PARAMS((void));
--LT_SCOPE int lt_dlclose LT_PARAMS((lt_dlhandle handle));
--
--/* Module residency management. */
--LT_SCOPE int lt_dlmakeresident LT_PARAMS((lt_dlhandle handle));
--LT_SCOPE int lt_dlisresident LT_PARAMS((lt_dlhandle handle));
--
--
--
--\f
--/* --- MUTEX LOCKING --- */
--
--
--typedef void lt_dlmutex_lock LT_PARAMS((void));
--typedef void lt_dlmutex_unlock LT_PARAMS((void));
--typedef void lt_dlmutex_seterror LT_PARAMS((const char *errmsg));
--typedef const char *lt_dlmutex_geterror LT_PARAMS((void));
--
--LT_SCOPE int lt_dlmutex_register LT_PARAMS((lt_dlmutex_lock *lock,
-- lt_dlmutex_unlock *unlock,
-- lt_dlmutex_seterror *seterror,
-- lt_dlmutex_geterror *geterror));
--
--
--
--\f
--/* --- MEMORY HANDLING --- */
--
--
--/* By default, the realloc function pointer is set to our internal
-- realloc implementation which iself uses lt_dlmalloc and lt_dlfree.
-- libltdl relies on a featureful realloc, but if you are sure yours
-- has the right semantics then you can assign it directly. Generally,
-- it is safe to assign just a malloc() and a free() function. */
--LT_SCOPE lt_ptr (*lt_dlmalloc) LT_PARAMS((size_t size));
--LT_SCOPE lt_ptr (*lt_dlrealloc) LT_PARAMS((lt_ptr ptr, size_t size));
--LT_SCOPE void (*lt_dlfree) LT_PARAMS((lt_ptr ptr));
--
--
--
--\f
--/* --- PRELOADED MODULE SUPPORT --- */
--
--
--/* A preopened symbol. Arrays of this type comprise the exported
-- symbols for a dlpreopened module. */
--typedef struct {
-- const char *name;
-- lt_ptr address;
--} lt_dlsymlist;
--
--LT_SCOPE int lt_dlpreload LT_PARAMS((const lt_dlsymlist *preloaded));
--LT_SCOPE int lt_dlpreload_default
-- LT_PARAMS((const lt_dlsymlist *preloaded));
--
--#define LTDL_SET_PRELOADED_SYMBOLS() LT_STMT_START{ \
-- extern const lt_dlsymlist lt_preloaded_symbols[]; \
-- lt_dlpreload_default(lt_preloaded_symbols); \
-- }LT_STMT_END
--
--
--
--\f
--/* --- MODULE INFORMATION --- */
--
--
--/* Read only information pertaining to a loaded module. */
--typedef struct {
-- char *filename; /* file name */
-- char *name; /* module name */
-- int ref_count; /* number of times lt_dlopened minus
-- number of times lt_dlclosed. */
--} lt_dlinfo;
--
--LT_SCOPE const lt_dlinfo *lt_dlgetinfo LT_PARAMS((lt_dlhandle handle));
--LT_SCOPE lt_dlhandle lt_dlhandle_next LT_PARAMS((lt_dlhandle place));
--LT_SCOPE int lt_dlforeach LT_PARAMS((
-- int (*func) (lt_dlhandle handle, lt_ptr data),
-- lt_ptr data));
--
--/* Associating user data with loaded modules. */
--typedef unsigned lt_dlcaller_id;
--
--LT_SCOPE lt_dlcaller_id lt_dlcaller_register LT_PARAMS((void));
--LT_SCOPE lt_ptr lt_dlcaller_set_data LT_PARAMS((lt_dlcaller_id key,
-- lt_dlhandle handle,
-- lt_ptr data));
--LT_SCOPE lt_ptr lt_dlcaller_get_data LT_PARAMS((lt_dlcaller_id key,
-- lt_dlhandle handle));
--
--
--\f
--/* --- USER MODULE LOADER API --- */
--
--
--typedef struct lt_dlloader lt_dlloader;
--typedef lt_ptr lt_user_data;
--typedef lt_ptr lt_module;
--
--/* Function pointer types for creating user defined module loaders. */
--typedef lt_module lt_module_open LT_PARAMS((lt_user_data loader_data,
-- const char *filename));
--typedef int lt_module_close LT_PARAMS((lt_user_data loader_data,
-- lt_module handle));
--typedef lt_ptr lt_find_sym LT_PARAMS((lt_user_data loader_data,
-- lt_module handle,
-- const char *symbol));
--typedef int lt_dlloader_exit LT_PARAMS((lt_user_data loader_data));
--
--struct lt_user_dlloader {
-- const char *sym_prefix;
-- lt_module_open *module_open;
-- lt_module_close *module_close;
-- lt_find_sym *find_sym;
-- lt_dlloader_exit *dlloader_exit;
-- lt_user_data dlloader_data;
--};
--
--LT_SCOPE lt_dlloader *lt_dlloader_next LT_PARAMS((lt_dlloader *place));
--LT_SCOPE lt_dlloader *lt_dlloader_find LT_PARAMS((
-- const char *loader_name));
--LT_SCOPE const char *lt_dlloader_name LT_PARAMS((lt_dlloader *place));
--LT_SCOPE lt_user_data *lt_dlloader_data LT_PARAMS((lt_dlloader *place));
--LT_SCOPE int lt_dlloader_add LT_PARAMS((lt_dlloader *place,
-- const struct lt_user_dlloader *dlloader,
-- const char *loader_name));
--LT_SCOPE int lt_dlloader_remove LT_PARAMS((
-- const char *loader_name));
--
--
--\f
--/* --- ERROR MESSAGE HANDLING --- */
--
--
--/* Defining error strings alongside their symbolic names in a macro in
-- this way allows us to expand the macro in different contexts with
-- confidence that the enumeration of symbolic names will map correctly
-- onto the table of error strings. */
--#define lt_dlerror_table \
-- LT_ERROR(UNKNOWN, "unknown error") \
-- LT_ERROR(DLOPEN_NOT_SUPPORTED, "dlopen support not available") \
-- LT_ERROR(INVALID_LOADER, "invalid loader") \
-- LT_ERROR(INIT_LOADER, "loader initialization failed") \
-- LT_ERROR(REMOVE_LOADER, "loader removal failed") \
-- LT_ERROR(FILE_NOT_FOUND, "file not found") \
-- LT_ERROR(DEPLIB_NOT_FOUND, "dependency library not found") \
-- LT_ERROR(NO_SYMBOLS, "no symbols defined") \
-- LT_ERROR(CANNOT_OPEN, "can't open the module") \
-- LT_ERROR(CANNOT_CLOSE, "can't close the module") \
-- LT_ERROR(SYMBOL_NOT_FOUND, "symbol not found") \
-- LT_ERROR(NO_MEMORY, "not enough memory") \
-- LT_ERROR(INVALID_HANDLE, "invalid module handle") \
-- LT_ERROR(BUFFER_OVERFLOW, "internal buffer overflow") \
-- LT_ERROR(INVALID_ERRORCODE, "invalid errorcode") \
-- LT_ERROR(SHUTDOWN, "library already shutdown") \
-- LT_ERROR(CLOSE_RESIDENT_MODULE, "can't close resident module") \
-- LT_ERROR(INVALID_MUTEX_ARGS, "invalid mutex handler registration") \
-- LT_ERROR(INVALID_POSITION, "invalid search path insert position")
--
--/* Enumerate the symbolic error names. */
--enum {
--#define LT_ERROR(name, diagnostic) LT_CONC(LT_ERROR_, name),
-- lt_dlerror_table
--#undef LT_ERROR
--
-- LT_ERROR_MAX
--};
--
--/* These functions are only useful from inside custom module loaders. */
--LT_SCOPE int lt_dladderror LT_PARAMS((const char *diagnostic));
--LT_SCOPE int lt_dlseterror LT_PARAMS((int errorcode));
--
--
--
--\f
--/* --- SOURCE COMPATIBILITY WITH OLD LIBLTDL --- */
--
--
--#ifdef LT_NON_POSIX_NAMESPACE
--# define lt_ptr_t lt_ptr
--# define lt_module_t lt_module
--# define lt_module_open_t lt_module_open
--# define lt_module_close_t lt_module_close
--# define lt_find_sym_t lt_find_sym
--# define lt_dlloader_exit_t lt_dlloader_exit
--# define lt_dlloader_t lt_dlloader
--# define lt_dlloader_data_t lt_user_data
--#endif
--
--//LT_END_C_DECLS
--
--} // namespace scim
--
--#endif /* !LTDL_H */
-diff -up scim-1.4.8/src/scim_module.cpp.fix-dlopen scim-1.4.8/src/scim_module.cpp
---- scim-1.4.8/src/scim_module.cpp.fix-dlopen 2009-03-25 15:11:42.223072366 +0800
-+++ scim-1.4.8/src/scim_module.cpp 2009-03-25 15:11:42.250015385 +0800
-@@ -42,6 +42,7 @@ typedef void (*ModuleExitFunc) (void);
-
- struct Module::ModuleImpl
- {
-+ lt_dladvise advise;
- lt_dlhandle handle;
- ModuleInitFunc init;
- ModuleExitFunc exit;
-@@ -120,18 +121,23 @@ Module::Module ()
- : m_impl (new ModuleImpl)
- {
- lt_dlinit ();
-+ lt_dladvise_init (&(m_impl->advise));
-+ lt_dladvise_ext (&(m_impl->advise));
-+ lt_dladvise_global (&(m_impl->advise));
- }
-
- Module::Module (const String &name, const String &type)
- : m_impl (new ModuleImpl)
- {
-- lt_dlinit ();
-+ Module();
-+
- load (name, type);
- }
-
- Module::~Module ()
- {
- unload ();
-+ lt_dladvise_destroy (&(m_impl->advise));
- lt_dlexit ();
- delete m_impl;
- }
-@@ -169,13 +175,13 @@ Module::load (const String &name, const
-
- for (it = paths.begin (); it != paths.end (); ++it) {
- module_path = *it + String (SCIM_PATH_DELIM_STRING) + name;
-- new_handle = lt_dlopenext (module_path.c_str ());
-+ new_handle = lt_dlopenadvise (module_path.c_str (), m_impl->advise);
- if (new_handle)
- break;
- }
-
- if (!new_handle) {
-- new_handle = lt_dlopenext (name.c_str ());
-+ new_handle = lt_dlopenadvise (name.c_str (), m_impl->advise);
- }
-
- if (!new_handle)
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