dlfcn.c File Reference

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include "dlfcn.h"

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Data Structures
struct	local_object

Macros
#define	GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS   0x4
#define	GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT   0x2
#define	IMAGE_NT_OPTIONAL_HDR_MAGIC   0x10b
#define	IMAGE_DIRECTORY_ENTRY_IAT   12
#define	LOAD_WITH_ALTERED_SEARCH_PATH   0x8
#define	_ReturnAddress()
#define	DLFCN_NOINLINE

Typedefs
typedef ULONG	ULONG_PTR
typedef struct local_object	local_object

Functions
static local_object *	local_search (HMODULE hModule)
static BOOL	local_add (HMODULE hModule)
static void	local_rem (HMODULE hModule)
static void	save_err_str (const char *str, DWORD dwMessageId)
static void	save_err_ptr_str (const void *ptr, DWORD dwMessageId)
static UINT	MySetErrorMode (UINT uMode)
static HMODULE	MyGetModuleHandleFromAddress (const void *addr)
static BOOL	MyEnumProcessModules (HANDLE hProcess, HMODULE *lphModule, DWORD cb, LPDWORD lpcbNeeded)
DLFCN_EXPORT void *	dlopen (const char *file, int mode)
DLFCN_EXPORT int	dlclose (void *handle)
DLFCN_NOINLINE DLFCN_EXPORT void *	dlsym (void *handle, const char *name)
DLFCN_EXPORT char *	dlerror (void)
static BOOL	get_image_section (HMODULE module, int index, void **ptr, DWORD *size)
static const char *	get_export_symbol_name (HMODULE module, IMAGE_EXPORT_DIRECTORY *ied, const void *addr, void **func_address)
static BOOL	is_valid_address (const void *addr)
static BOOL	is_import_thunk (const void *addr)
static void *	get_address_from_import_address_table (void *iat, DWORD iat_size, const void *addr)
static BOOL	fill_info (const void *addr, Dl_info *info)
DLFCN_EXPORT int	dladdr (const void *addr, Dl_info *info)

Variables
static local_object	first_object
static char	error_buffer [65535]
static BOOL	error_occurred
static char	module_filename [2 *MAX_PATH]

Macro Definition Documentation

_ReturnAddress

#define _ReturnAddress

(

)

Value:

( __builtin_extract_return_addr( __builtin_return_address( 0 ) ) )

DLFCN_NOINLINE

#define DLFCN_NOINLINE

GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS

#define GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS   0x4

GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT

#define GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT   0x2

IMAGE_DIRECTORY_ENTRY_IAT

#define IMAGE_DIRECTORY_ENTRY_IAT   12

IMAGE_NT_OPTIONAL_HDR_MAGIC

#define IMAGE_NT_OPTIONAL_HDR_MAGIC   0x10b

LOAD_WITH_ALTERED_SEARCH_PATH

#define LOAD_WITH_ALTERED_SEARCH_PATH   0x8

Typedef Documentation

local_object

typedef struct local_object local_object

ULONG_PTR

typedef ULONG ULONG_PTR

Function Documentation

dladdr()

DLFCN_EXPORT int dladdr	(	const void *	addr,
		Dl_info *	info )

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dlclose()

DLFCN_EXPORT int dlclose

(

void *

handle

)

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dlerror()

DLFCN_EXPORT char * dlerror

(

void

)

dlopen()

DLFCN_EXPORT void * dlopen	(	const char *	file,
		int	mode )

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dlsym()

DLFCN_NOINLINE DLFCN_EXPORT void * dlsym	(	void *	handle,
		const char *	name )

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fill_info()

BOOL fill_info ( const void * addr, Dl_info * info )

static

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get_address_from_import_address_table()

void * get_address_from_import_address_table ( void * iat, DWORD iat_size, const void * addr )

static

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get_export_symbol_name()

const char * get_export_symbol_name ( HMODULE module, IMAGE_EXPORT_DIRECTORY * ied, const void * addr, void ** func_address )

static

get_image_section()

BOOL get_image_section ( HMODULE module, int index, void ** ptr, DWORD * size )

static

is_import_thunk()

BOOL is_import_thunk ( const void * addr )

static

is_valid_address()

BOOL is_valid_address ( const void * addr )

static

local_add()

BOOL local_add ( HMODULE hModule )

static

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local_rem()

void local_rem ( HMODULE hModule )

static

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local_search()

local_object * local_search ( HMODULE hModule )

static

MyEnumProcessModules()

BOOL MyEnumProcessModules ( HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded )

static

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MyGetModuleHandleFromAddress()

HMODULE MyGetModuleHandleFromAddress ( const void * addr )

static

MySetErrorMode()

UINT MySetErrorMode ( UINT uMode )

static

save_err_ptr_str()

void save_err_ptr_str ( const void * ptr, DWORD dwMessageId )

static

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save_err_str()

void save_err_str ( const char * str, DWORD dwMessageId )

static

Variable Documentation

error_buffer

char error_buffer[65535]

static

error_occurred

BOOL error_occurred

static

first_object

local_object first_object

static

module_filename

char module_filename[2 *MAX_PATH]

static