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goma/wine/b1df392f02c8cc74078bb807bac6224ff9289791/./loader/module.c
blob: 91a8836239e1bc040634c2316a4666aab6743420 [file]
/*
* Modules
*
* Copyright 1995 Alexandre Julliard
*
* 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 2.1 of the License, or (at your option) any later version.
*
* 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
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "wine/winbase16.h"
#include "winerror.h"
#include "winternl.h"
#include "heap.h"
#include "file.h"
#include "module.h"
#include "wine/debug.h"
#include "wine/server.h"
WINE_DEFAULT_DEBUG_CHANNEL(module);
WINE_DECLARE_DEBUG_CHANNEL(win32);
WINE_DECLARE_DEBUG_CHANNEL(loaddll);
WINE_MODREF *MODULE_modref_list = NULL;
static WINE_MODREF *exe_modref;
static int free_lib_count; /* recursion depth of FreeLibrary calls */
static int process_detaching; /* set on process detach to avoid deadlocks with thread detach */
static CRITICAL_SECTION loader_section = CRITICAL_SECTION_INIT( "loader_section" );
/***********************************************************************
* wait_input_idle
*
* Wrapper to call WaitForInputIdle USER function
*/
typedef DWORD (WINAPI *WaitForInputIdle_ptr)( HANDLE hProcess, DWORD dwTimeOut );
static DWORD wait_input_idle( HANDLE process, DWORD timeout )
{
HMODULE mod = GetModuleHandleA( "user32.dll" );
if (mod)
{
WaitForInputIdle_ptr ptr = (WaitForInputIdle_ptr)GetProcAddress( mod, "WaitForInputIdle" );
if (ptr) return ptr( process, timeout );
}
return 0;
}
/*************************************************************************
* MODULE32_LookupHMODULE
* looks for the referenced HMODULE in the current process
* NOTE: Assumes that the process critical section is held!
*/
static WINE_MODREF *MODULE32_LookupHMODULE( HMODULE hmod )
{
WINE_MODREF *wm;
if (!hmod)
return exe_modref;
if (!HIWORD(hmod)) {
ERR("tried to lookup 0x%04x in win32 module handler!\n",hmod);
SetLastError( ERROR_INVALID_HANDLE );
return NULL;
}
for ( wm = MODULE_modref_list; wm; wm=wm->next )
if (wm->module == hmod)
return wm;
SetLastError( ERROR_INVALID_HANDLE );
return NULL;
}
/*************************************************************************
* MODULE_AllocModRef
*
* Allocate a WINE_MODREF structure and add it to the process list
* NOTE: Assumes that the process critical section is held!
*/
WINE_MODREF *MODULE_AllocModRef( HMODULE hModule, LPCSTR filename )
{
WINE_MODREF *wm;
DWORD long_len = strlen( filename );
DWORD short_len = GetShortPathNameA( filename, NULL, 0 );
if ((wm = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(*wm) + long_len + short_len + 1 )))
{
wm->module = hModule;
wm->tlsindex = -1;
wm->filename = wm->data;
memcpy( wm->filename, filename, long_len + 1 );
if ((wm->modname = strrchr( wm->filename, '\\' ))) wm->modname++;
else wm->modname = wm->filename;
wm->short_filename = wm->filename + long_len + 1;
GetShortPathNameA( wm->filename, wm->short_filename, short_len + 1 );
if ((wm->short_modname = strrchr( wm->short_filename, '\\' ))) wm->short_modname++;
else wm->short_modname = wm->short_filename;
wm->next = MODULE_modref_list;
if (wm->next) wm->next->prev = wm;
MODULE_modref_list = wm;
if (!(RtlImageNtHeader(hModule)->FileHeader.Characteristics & IMAGE_FILE_DLL))
{
if (!exe_modref) exe_modref = wm;
else FIXME( "Trying to load second .EXE file: %s\n", filename );
}
}
return wm;
}
/*************************************************************************
* MODULE_InitDLL
*/
static BOOL MODULE_InitDLL( WINE_MODREF *wm, DWORD type, LPVOID lpReserved )
{
BOOL retv = TRUE;
static LPCSTR typeName[] = { "PROCESS_DETACH", "PROCESS_ATTACH",
"THREAD_ATTACH", "THREAD_DETACH" };
assert( wm );
/* Skip calls for modules loaded with special load flags */
if (wm->flags & WINE_MODREF_DONT_RESOLVE_REFS) return TRUE;
TRACE("(%s,%s,%p) - CALL\n", wm->modname, typeName[type], lpReserved );
/* Call the initialization routine */
retv = PE_InitDLL( wm->module, type, lpReserved );
/* The state of the module list may have changed due to the call
to PE_InitDLL. We cannot assume that this module has not been
deleted. */
TRACE("(%p,%s,%p) - RETURN %d\n", wm, typeName[type], lpReserved, retv );
return retv;
}
/*************************************************************************
* MODULE_DllProcessAttach
*
* Send the process attach notification to all DLLs the given module
* depends on (recursively). This is somewhat complicated due to the fact that
*
* - we have to respect the module dependencies, i.e. modules implicitly
* referenced by another module have to be initialized before the module
* itself can be initialized
*
* - the initialization routine of a DLL can itself call LoadLibrary,
* thereby introducing a whole new set of dependencies (even involving
* the 'old' modules) at any time during the whole process
*
* (Note that this routine can be recursively entered not only directly
* from itself, but also via LoadLibrary from one of the called initialization
* routines.)
*
* Furthermore, we need to rearrange the main WINE_MODREF list to allow
* the process *detach* notifications to be sent in the correct order.
* This must not only take into account module dependencies, but also
* 'hidden' dependencies created by modules calling LoadLibrary in their
* attach notification routine.
*
* The strategy is rather simple: we move a WINE_MODREF to the head of the
* list after the attach notification has returned. This implies that the
* detach notifications are called in the reverse of the sequence the attach
* notifications *returned*.
*/
BOOL MODULE_DllProcessAttach( WINE_MODREF *wm, LPVOID lpReserved )
{
BOOL retv = TRUE;
int i;
RtlEnterCriticalSection( &loader_section );
if (!wm)
{
wm = exe_modref;
PE_InitTls();
}
assert( wm );
/* prevent infinite recursion in case of cyclical dependencies */
if ( ( wm->flags & WINE_MODREF_MARKER )
|| ( wm->flags & WINE_MODREF_PROCESS_ATTACHED ) )
goto done;
TRACE("(%s,%p) - START\n", wm->modname, lpReserved );
/* Tag current MODREF to prevent recursive loop */
wm->flags |= WINE_MODREF_MARKER;
/* Recursively attach all DLLs this one depends on */
for ( i = 0; retv && i < wm->nDeps; i++ )
if ( wm->deps[i] )
retv = MODULE_DllProcessAttach( wm->deps[i], lpReserved );
/* Call DLL entry point */
if ( retv )
{
retv = MODULE_InitDLL( wm, DLL_PROCESS_ATTACH, lpReserved );
if ( retv )
wm->flags |= WINE_MODREF_PROCESS_ATTACHED;
}
/* Re-insert MODREF at head of list */
if ( retv && wm->prev )
{
wm->prev->next = wm->next;
if ( wm->next ) wm->next->prev = wm->prev;
wm->prev = NULL;
wm->next = MODULE_modref_list;
MODULE_modref_list = wm->next->prev = wm;
}
/* Remove recursion flag */
wm->flags &= ~WINE_MODREF_MARKER;
TRACE("(%s,%p) - END\n", wm->modname, lpReserved );
done:
RtlLeaveCriticalSection( &loader_section );
return retv;
}
/*************************************************************************
* MODULE_DllProcessDetach
*
* Send DLL process detach notifications. See the comment about calling
* sequence at MODULE_DllProcessAttach. Unless the bForceDetach flag
* is set, only DLLs with zero refcount are notified.
*/
void MODULE_DllProcessDetach( BOOL bForceDetach, LPVOID lpReserved )
{
WINE_MODREF *wm;
RtlEnterCriticalSection( &loader_section );
if (bForceDetach) process_detaching = 1;
do
{
for ( wm = MODULE_modref_list; wm; wm = wm->next )
{
/* Check whether to detach this DLL */
if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
continue;
if ( wm->refCount > 0 && !bForceDetach )
continue;
/* Call detach notification */
wm->flags &= ~WINE_MODREF_PROCESS_ATTACHED;
MODULE_InitDLL( wm, DLL_PROCESS_DETACH, lpReserved );
/* Restart at head of WINE_MODREF list, as entries might have
been added and/or removed while performing the call ... */
break;
}
} while ( wm );
RtlLeaveCriticalSection( &loader_section );
}
/*************************************************************************
* MODULE_DllThreadAttach
*
* Send DLL thread attach notifications. These are sent in the
* reverse sequence of process detach notification.
*
*/
void MODULE_DllThreadAttach( LPVOID lpReserved )
{
WINE_MODREF *wm;
/* don't do any attach calls if process is exiting */
if (process_detaching) return;
/* FIXME: there is still a race here */
RtlEnterCriticalSection( &loader_section );
PE_InitTls();
for ( wm = MODULE_modref_list; wm; wm = wm->next )
if ( !wm->next )
break;
for ( ; wm; wm = wm->prev )
{
if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
continue;
if ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
continue;
MODULE_InitDLL( wm, DLL_THREAD_ATTACH, lpReserved );
}
RtlLeaveCriticalSection( &loader_section );
}
/*************************************************************************
* MODULE_DllThreadDetach
*
* Send DLL thread detach notifications. These are sent in the
* same sequence as process detach notification.
*
*/
void MODULE_DllThreadDetach( LPVOID lpReserved )
{
WINE_MODREF *wm;
/* don't do any detach calls if process is exiting */
if (process_detaching) return;
/* FIXME: there is still a race here */
RtlEnterCriticalSection( &loader_section );
for ( wm = MODULE_modref_list; wm; wm = wm->next )
{
if ( !(wm->flags & WINE_MODREF_PROCESS_ATTACHED) )
continue;
if ( wm->flags & WINE_MODREF_NO_DLL_CALLS )
continue;
MODULE_InitDLL( wm, DLL_THREAD_DETACH, lpReserved );
}
RtlLeaveCriticalSection( &loader_section );
}
/****************************************************************************
* DisableThreadLibraryCalls (KERNEL32.@)
*
* Don't call DllEntryPoint for DLL_THREAD_{ATTACH,DETACH} if set.
*/
BOOL WINAPI DisableThreadLibraryCalls( HMODULE hModule )
{
WINE_MODREF *wm;
BOOL retval = TRUE;
RtlEnterCriticalSection( &loader_section );
wm = MODULE32_LookupHMODULE( hModule );
if ( !wm )
retval = FALSE;
else
wm->flags |= WINE_MODREF_NO_DLL_CALLS;
RtlLeaveCriticalSection( &loader_section );
return retval;
}
/***********************************************************************
* MODULE_CreateDummyModule
*
* Create a dummy NE module for Win32 or Winelib.
*/
HMODULE16 MODULE_CreateDummyModule( LPCSTR filename, HMODULE module32 )
{
HMODULE16 hModule;
NE_MODULE *pModule;
SEGTABLEENTRY *pSegment;
char *pStr,*s;
unsigned int len;
const char* basename;
OFSTRUCT *ofs;
int of_size, size;
/* Extract base filename */
basename = strrchr(filename, '\\');
if (!basename) basename = filename;
else basename++;
len = strlen(basename);
if ((s = strchr(basename, '.'))) len = s - basename;
/* Allocate module */
of_size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName)
+ strlen(filename) + 1;
size = sizeof(NE_MODULE) +
/* loaded file info */
((of_size + 3) & ~3) +
/* segment table: DS,CS */
2 * sizeof(SEGTABLEENTRY) +
/* name table */
len + 2 +
/* several empty tables */
8;
hModule = GlobalAlloc16( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
if (!hModule) return (HMODULE16)11; /* invalid exe */
FarSetOwner16( hModule, hModule );
pModule = (NE_MODULE *)GlobalLock16( hModule );
/* Set all used entries */
pModule->magic = IMAGE_OS2_SIGNATURE;
pModule->count = 1;
pModule->next = 0;
pModule->flags = 0;
pModule->dgroup = 0;
pModule->ss = 1;
pModule->cs = 2;
pModule->heap_size = 0;
pModule->stack_size = 0;
pModule->seg_count = 2;
pModule->modref_count = 0;
pModule->nrname_size = 0;
pModule->fileinfo = sizeof(NE_MODULE);
pModule->os_flags = NE_OSFLAGS_WINDOWS;
pModule->self = hModule;
pModule->module32 = module32;
/* Set version and flags */
if (module32)
{
IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
pModule->expected_version = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
(nt->OptionalHeader.MinorSubsystemVersion & 0xff);
pModule->flags |= NE_FFLAGS_WIN32;
if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
pModule->flags |= NE_FFLAGS_LIBMODULE | NE_FFLAGS_SINGLEDATA;
}
/* Set loaded file information */
ofs = (OFSTRUCT *)(pModule + 1);
memset( ofs, 0, of_size );
ofs->cBytes = of_size < 256 ? of_size : 255; /* FIXME */
strcpy( ofs->szPathName, filename );
pSegment = (SEGTABLEENTRY*)((char*)(pModule + 1) + ((of_size + 3) & ~3));
pModule->seg_table = (int)pSegment - (int)pModule;
/* Data segment */
pSegment->size = 0;
pSegment->flags = NE_SEGFLAGS_DATA;
pSegment->minsize = 0x1000;
pSegment++;
/* Code segment */
pSegment->flags = 0;
pSegment++;
/* Module name */
pStr = (char *)pSegment;
pModule->name_table = (int)pStr - (int)pModule;
assert(len<256);
*pStr = len;
lstrcpynA( pStr+1, basename, len+1 );
pStr += len+2;
/* All tables zero terminated */
pModule->res_table = pModule->import_table = pModule->entry_table =
(int)pStr - (int)pModule;
NE_RegisterModule( pModule );
return hModule;
}
/**********************************************************************
* MODULE_FindModule
*
* Find a (loaded) win32 module depending on path
*
* RETURNS
* the module handle if found
* 0 if not
*/
WINE_MODREF *MODULE_FindModule(
LPCSTR path /* [in] pathname of module/library to be found */
) {
WINE_MODREF *wm;
char dllname[260], *p;
/* Append .DLL to name if no extension present */
strcpy( dllname, path );
if (!(p = strrchr( dllname, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
strcat( dllname, ".DLL" );
for ( wm = MODULE_modref_list; wm; wm = wm->next )
{
if ( !FILE_strcasecmp( dllname, wm->modname ) )
break;
if ( !FILE_strcasecmp( dllname, wm->filename ) )
break;
if ( !FILE_strcasecmp( dllname, wm->short_modname ) )
break;
if ( !FILE_strcasecmp( dllname, wm->short_filename ) )
break;
}
return wm;
}
/* Check whether a file is an OS/2 or a very old Windows executable
* by testing on import of KERNEL.
*
* FIXME: is reading the module imports the only way of discerning
* old Windows binaries from OS/2 ones ? At least it seems so...
*/
static enum binary_type MODULE_Decide_OS2_OldWin(HANDLE hfile, const IMAGE_DOS_HEADER *mz,
const IMAGE_OS2_HEADER *ne)
{
DWORD currpos = SetFilePointer( hfile, 0, NULL, SEEK_CUR);
enum binary_type ret = BINARY_OS216;
LPWORD modtab = NULL;
LPSTR nametab = NULL;
DWORD len;
int i;
/* read modref table */
if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_modtab, NULL, SEEK_SET ) == -1)
|| (!(modtab = HeapAlloc( GetProcessHeap(), 0, ne->ne_cmod*sizeof(WORD))))
|| (!(ReadFile(hfile, modtab, ne->ne_cmod*sizeof(WORD), &len, NULL)))
|| (len != ne->ne_cmod*sizeof(WORD)) )
goto broken;
/* read imported names table */
if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_imptab, NULL, SEEK_SET ) == -1)
|| (!(nametab = HeapAlloc( GetProcessHeap(), 0, ne->ne_enttab - ne->ne_imptab)))
|| (!(ReadFile(hfile, nametab, ne->ne_enttab - ne->ne_imptab, &len, NULL)))
|| (len != ne->ne_enttab - ne->ne_imptab) )
goto broken;
for (i=0; i < ne->ne_cmod; i++)
{
LPSTR module = &nametab[modtab[i]];
TRACE("modref: %.*s\n", module[0], &module[1]);
if (!(strncmp(&module[1], "KERNEL", module[0])))
{ /* very old Windows file */
MESSAGE("This seems to be a very old (pre-3.0) Windows executable. Expect crashes, especially if this is a real-mode binary !\n");
ret = BINARY_WIN16;
goto good;
}
}
broken:
ERR("Hmm, an error occurred. Is this binary file broken ?\n");
good:
HeapFree( GetProcessHeap(), 0, modtab);
HeapFree( GetProcessHeap(), 0, nametab);
SetFilePointer( hfile, currpos, NULL, SEEK_SET); /* restore filepos */
return ret;
}
/***********************************************************************
* MODULE_GetBinaryType
*/
enum binary_type MODULE_GetBinaryType( HANDLE hfile )
{
union
{
struct
{
unsigned char magic[4];
unsigned char ignored[12];
unsigned short type;
} elf;
IMAGE_DOS_HEADER mz;
} header;
char magic[4];
DWORD len;
/* Seek to the start of the file and read the header information. */
if (SetFilePointer( hfile, 0, NULL, SEEK_SET ) == -1)
return BINARY_UNKNOWN;
if (!ReadFile( hfile, &header, sizeof(header), &len, NULL ) || len != sizeof(header))
return BINARY_UNKNOWN;
if (!memcmp( header.elf.magic, "\177ELF", 4 ))
{
/* FIXME: we don't bother to check byte order, architecture, etc. */
switch(header.elf.type)
{
case 2: return BINARY_UNIX_EXE;
case 3: return BINARY_UNIX_LIB;
}
return BINARY_UNKNOWN;
}
/* Not ELF, try DOS */
if (header.mz.e_magic == IMAGE_DOS_SIGNATURE)
{
/* We do have a DOS image so we will now try to seek into
* the file by the amount indicated by the field
* "Offset to extended header" and read in the
* "magic" field information at that location.
* This will tell us if there is more header information
* to read or not.
*/
/* But before we do we will make sure that header
* structure encompasses the "Offset to extended header"
* field.
*/
if ((header.mz.e_cparhdr << 4) < sizeof(IMAGE_DOS_HEADER))
return BINARY_DOS;
if (header.mz.e_crlc && (header.mz.e_lfarlc < sizeof(IMAGE_DOS_HEADER)))
return BINARY_DOS;
if (header.mz.e_lfanew < sizeof(IMAGE_DOS_HEADER))
return BINARY_DOS;
if (SetFilePointer( hfile, header.mz.e_lfanew, NULL, SEEK_SET ) == -1)
return BINARY_DOS;
if (!ReadFile( hfile, magic, sizeof(magic), &len, NULL ) || len != sizeof(magic))
return BINARY_DOS;
/* Reading the magic field succeeded so
* we will try to determine what type it is.
*/
if (!memcmp( magic, "PE\0\0", 4 ))
{
IMAGE_FILE_HEADER FileHeader;
if (ReadFile( hfile, &FileHeader, sizeof(FileHeader), &len, NULL ) && len == sizeof(FileHeader))
{
if (FileHeader.Characteristics & IMAGE_FILE_DLL) return BINARY_PE_DLL;
return BINARY_PE_EXE;
}
return BINARY_DOS;
}
if (!memcmp( magic, "NE", 2 ))
{
/* This is a Windows executable (NE) header. This can
* mean either a 16-bit OS/2 or a 16-bit Windows or even a
* DOS program (running under a DOS extender). To decide
* which, we'll have to read the NE header.
*/
IMAGE_OS2_HEADER ne;
if ( SetFilePointer( hfile, header.mz.e_lfanew, NULL, SEEK_SET ) != -1
&& ReadFile( hfile, &ne, sizeof(ne), &len, NULL )
&& len == sizeof(ne) )
{
switch ( ne.ne_exetyp )
{
case 2: return BINARY_WIN16;
case 5: return BINARY_DOS;
default: return MODULE_Decide_OS2_OldWin(hfile, &header.mz, &ne);
}
}
/* Couldn't read header, so abort. */
return BINARY_DOS;
}
/* Unknown extended header, but this file is nonetheless DOS-executable. */
return BINARY_DOS;
}
return BINARY_UNKNOWN;
}
/***********************************************************************
* GetBinaryTypeA [KERNEL32.@]
* GetBinaryType [KERNEL32.@]
*
* The GetBinaryType function determines whether a file is executable
* or not and if it is it returns what type of executable it is.
* The type of executable is a property that determines in which
* subsystem an executable file runs under.
*
* Binary types returned:
* SCS_32BIT_BINARY: A Win32 based application
* SCS_DOS_BINARY: An MS-Dos based application
* SCS_WOW_BINARY: A Win16 based application
* SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
* SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
* SCS_OS216_BINARY: A 16bit OS/2 based application
*
* Returns TRUE if the file is an executable in which case
* the value pointed by lpBinaryType is set.
* Returns FALSE if the file is not an executable or if the function fails.
*
* To do so it opens the file and reads in the header information
* if the extended header information is not present it will
* assume that the file is a DOS executable.
* If the extended header information is present it will
* determine if the file is a 16 or 32 bit Windows executable
* by check the flags in the header.
*
* Note that .COM and .PIF files are only recognized by their
* file name extension; but Windows does it the same way ...
*/
BOOL WINAPI GetBinaryTypeA( LPCSTR lpApplicationName, LPDWORD lpBinaryType )
{
BOOL ret = FALSE;
HANDLE hfile;
char *ptr;
TRACE_(win32)("%s\n", lpApplicationName );
/* Sanity check.
*/
if ( lpApplicationName == NULL || lpBinaryType == NULL )
return FALSE;
/* Open the file indicated by lpApplicationName for reading.
*/
hfile = CreateFileA( lpApplicationName, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, 0, 0 );
if ( hfile == INVALID_HANDLE_VALUE )
return FALSE;
/* Check binary type
*/
switch(MODULE_GetBinaryType( hfile ))
{
case BINARY_UNKNOWN:
/* try to determine from file name */
ptr = strrchr( lpApplicationName, '.' );
if (!ptr) break;
if (!FILE_strcasecmp( ptr, ".COM" ))
{
*lpBinaryType = SCS_DOS_BINARY;
ret = TRUE;
}
else if (!FILE_strcasecmp( ptr, ".PIF" ))
{
*lpBinaryType = SCS_PIF_BINARY;
ret = TRUE;
}
break;
case BINARY_PE_EXE:
case BINARY_PE_DLL:
*lpBinaryType = SCS_32BIT_BINARY;
ret = TRUE;
break;
case BINARY_WIN16:
*lpBinaryType = SCS_WOW_BINARY;
ret = TRUE;
break;
case BINARY_OS216:
*lpBinaryType = SCS_OS216_BINARY;
ret = TRUE;
break;
case BINARY_DOS:
*lpBinaryType = SCS_DOS_BINARY;
ret = TRUE;
break;
case BINARY_UNIX_EXE:
case BINARY_UNIX_LIB:
ret = FALSE;
break;
}
CloseHandle( hfile );
return ret;
}
/***********************************************************************
* GetBinaryTypeW [KERNEL32.@]
*/
BOOL WINAPI GetBinaryTypeW( LPCWSTR lpApplicationName, LPDWORD lpBinaryType )
{
BOOL ret = FALSE;
LPSTR strNew = NULL;
TRACE_(win32)("%s\n", debugstr_w(lpApplicationName) );
/* Sanity check.
*/
if ( lpApplicationName == NULL || lpBinaryType == NULL )
return FALSE;
/* Convert the wide string to a ascii string.
*/
strNew = HEAP_strdupWtoA( GetProcessHeap(), 0, lpApplicationName );
if ( strNew != NULL )
{
ret = GetBinaryTypeA( strNew, lpBinaryType );
/* Free the allocated string.
*/
HeapFree( GetProcessHeap(), 0, strNew );
}
return ret;
}
/***********************************************************************
* WinExec (KERNEL.166)
*/
HINSTANCE16 WINAPI WinExec16( LPCSTR lpCmdLine, UINT16 nCmdShow )
{
LPCSTR p, args = NULL;
LPCSTR name_beg, name_end;
LPSTR name, cmdline;
int arglen;
HINSTANCE16 ret;
char buffer[MAX_PATH];
if (*lpCmdLine == '"') /* has to be only one and only at beginning ! */
{
name_beg = lpCmdLine+1;
p = strchr ( lpCmdLine+1, '"' );
if (p)
{
name_end = p;
args = strchr ( p, ' ' );
}
else /* yes, even valid with trailing '"' missing */
name_end = lpCmdLine+strlen(lpCmdLine);
}
else
{
name_beg = lpCmdLine;
args = strchr( lpCmdLine, ' ' );
name_end = args ? args : lpCmdLine+strlen(lpCmdLine);
}
if ((name_beg == lpCmdLine) && (!args))
{ /* just use the original cmdline string as file name */
name = (LPSTR)lpCmdLine;
}
else
{
if (!(name = HeapAlloc( GetProcessHeap(), 0, name_end - name_beg + 1 )))
return ERROR_NOT_ENOUGH_MEMORY;
memcpy( name, name_beg, name_end - name_beg );
name[name_end - name_beg] = '\0';
}
if (args)
{
args++;
arglen = strlen(args);
cmdline = HeapAlloc( GetProcessHeap(), 0, 2 + arglen );
cmdline[0] = (BYTE)arglen;
strcpy( cmdline + 1, args );
}
else
{
cmdline = HeapAlloc( GetProcessHeap(), 0, 2 );
cmdline[0] = cmdline[1] = 0;
}
TRACE("name: '%s', cmdline: '%.*s'\n", name, cmdline[0], &cmdline[1]);
if (SearchPathA( NULL, name, ".exe", sizeof(buffer), buffer, NULL ))
{
LOADPARAMS16 params;
WORD showCmd[2];
showCmd[0] = 2;
showCmd[1] = nCmdShow;
params.hEnvironment = 0;
params.cmdLine = MapLS( cmdline );
params.showCmd = MapLS( showCmd );
params.reserved = 0;
ret = LoadModule16( buffer, &params );
UnMapLS( params.cmdLine );
UnMapLS( params.showCmd );
}
else ret = GetLastError();
HeapFree( GetProcessHeap(), 0, cmdline );
if (name != lpCmdLine) HeapFree( GetProcessHeap(), 0, name );
if (ret == 21) /* 32-bit module */
{
DWORD count;
ReleaseThunkLock( &count );
ret = LOWORD( WinExec( lpCmdLine, nCmdShow ) );
RestoreThunkLock( count );
}
return ret;
}
/***********************************************************************
* WinExec (KERNEL32.@)
*/
UINT WINAPI WinExec( LPCSTR lpCmdLine, UINT nCmdShow )
{
PROCESS_INFORMATION info;
STARTUPINFOA startup;
char *cmdline;
UINT ret;
memset( &startup, 0, sizeof(startup) );
startup.cb = sizeof(startup);
startup.dwFlags = STARTF_USESHOWWINDOW;
startup.wShowWindow = nCmdShow;
/* cmdline needs to be writeable for CreateProcess */
if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, strlen(lpCmdLine)+1 ))) return 0;
strcpy( cmdline, lpCmdLine );
if (CreateProcessA( NULL, cmdline, NULL, NULL, FALSE,
0, NULL, NULL, &startup, &info ))
{
/* Give 30 seconds to the app to come up */
if (wait_input_idle( info.hProcess, 30000 ) == 0xFFFFFFFF)
WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
ret = 33;
/* Close off the handles */
CloseHandle( info.hThread );
CloseHandle( info.hProcess );
}
else if ((ret = GetLastError()) >= 32)
{
FIXME("Strange error set by CreateProcess: %d\n", ret );
ret = 11;
}
HeapFree( GetProcessHeap(), 0, cmdline );
return ret;
}
/**********************************************************************
* LoadModule (KERNEL32.@)
*/
HINSTANCE WINAPI LoadModule( LPCSTR name, LPVOID paramBlock )
{
LOADPARAMS *params = (LOADPARAMS *)paramBlock;
PROCESS_INFORMATION info;
STARTUPINFOA startup;
HINSTANCE hInstance;
LPSTR cmdline, p;
char filename[MAX_PATH];
BYTE len;
if (!name) return (HINSTANCE)ERROR_FILE_NOT_FOUND;
if (!SearchPathA( NULL, name, ".exe", sizeof(filename), filename, NULL ) &&
!SearchPathA( NULL, name, NULL, sizeof(filename), filename, NULL ))
return (HINSTANCE)GetLastError();
len = (BYTE)params->lpCmdLine[0];
if (!(cmdline = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + len + 2 )))
return (HINSTANCE)ERROR_NOT_ENOUGH_MEMORY;
strcpy( cmdline, filename );
p = cmdline + strlen(cmdline);
*p++ = ' ';
memcpy( p, params->lpCmdLine + 1, len );
p[len] = 0;
memset( &startup, 0, sizeof(startup) );
startup.cb = sizeof(startup);
if (params->lpCmdShow)
{
startup.dwFlags = STARTF_USESHOWWINDOW;
startup.wShowWindow = params->lpCmdShow[1];
}
if (CreateProcessA( filename, cmdline, NULL, NULL, FALSE, 0,
params->lpEnvAddress, NULL, &startup, &info ))
{
/* Give 30 seconds to the app to come up */
if (wait_input_idle( info.hProcess, 30000 ) == 0xFFFFFFFF )
WARN("WaitForInputIdle failed: Error %ld\n", GetLastError() );
hInstance = (HINSTANCE)33;
/* Close off the handles */
CloseHandle( info.hThread );
CloseHandle( info.hProcess );
}
else if ((hInstance = (HINSTANCE)GetLastError()) >= (HINSTANCE)32)
{
FIXME("Strange error set by CreateProcess: %d\n", hInstance );
hInstance = (HINSTANCE)11;
}
HeapFree( GetProcessHeap(), 0, cmdline );
return hInstance;
}
/***********************************************************************
* GetModuleHandleA (KERNEL32.@)
* GetModuleHandle32 (KERNEL.488)
*/
HMODULE WINAPI GetModuleHandleA(LPCSTR module)
{
WINE_MODREF *wm;
if ( module == NULL )
wm = exe_modref;
else
wm = MODULE_FindModule( module );
return wm? wm->module : 0;
}
/***********************************************************************
* GetModuleHandleW (KERNEL32.@)
*/
HMODULE WINAPI GetModuleHandleW(LPCWSTR module)
{
HMODULE hModule;
LPSTR modulea = HEAP_strdupWtoA( GetProcessHeap(), 0, module );
hModule = GetModuleHandleA( modulea );
HeapFree( GetProcessHeap(), 0, modulea );
return hModule;
}
/***********************************************************************
* GetModuleFileNameA (KERNEL32.@)
* GetModuleFileName32 (KERNEL.487)
*
* GetModuleFileNameA seems to *always* return the long path;
* it's only GetModuleFileName16 that decides between short/long path
* by checking if exe version >= 4.0.
* (SDK docu doesn't mention this)
*/
DWORD WINAPI GetModuleFileNameA(
HMODULE hModule, /* [in] module handle (32bit) */
LPSTR lpFileName, /* [out] filenamebuffer */
DWORD size ) /* [in] size of filenamebuffer */
{
RtlEnterCriticalSection( &loader_section );
lpFileName[0] = 0;
if (!hModule && !(NtCurrentTeb()->tibflags & TEBF_WIN32))
{
/* 16-bit task - get current NE module name */
NE_MODULE *pModule = NE_GetPtr( GetCurrentTask() );
if (pModule) GetLongPathNameA(NE_MODULE_NAME(pModule), lpFileName, size);
}
else
{
WINE_MODREF *wm = MODULE32_LookupHMODULE( hModule );
if (wm) lstrcpynA( lpFileName, wm->filename, size );
}
RtlLeaveCriticalSection( &loader_section );
TRACE("%s\n", lpFileName );
return strlen(lpFileName);
}
/***********************************************************************
* GetModuleFileNameW (KERNEL32.@)
*/
DWORD WINAPI GetModuleFileNameW( HMODULE hModule, LPWSTR lpFileName, DWORD size )
{
LPSTR fnA = HeapAlloc( GetProcessHeap(), 0, size * 2 );
if (!fnA) return 0;
GetModuleFileNameA( hModule, fnA, size * 2 );
if (size > 0 && !MultiByteToWideChar( CP_ACP, 0, fnA, -1, lpFileName, size ))
lpFileName[size-1] = 0;
HeapFree( GetProcessHeap(), 0, fnA );
return strlenW(lpFileName);
}
/***********************************************************************
* LoadLibraryExA (KERNEL32.@)
*/
HMODULE WINAPI LoadLibraryExA(LPCSTR libname, HANDLE hfile, DWORD flags)
{
WINE_MODREF *wm;
if(!libname)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (flags & LOAD_LIBRARY_AS_DATAFILE)
{
char filename[256];
HMODULE hmod = 0;
/* This method allows searching for the 'native' libraries only */
if (SearchPathA( NULL, libname, ".dll", sizeof(filename), filename, NULL ))
{
/* FIXME: maybe we should use the hfile parameter instead */
HANDLE hFile = CreateFileA( filename, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, 0, 0 );
if (hFile != INVALID_HANDLE_VALUE)
{
HANDLE mapping;
switch (MODULE_GetBinaryType( hFile ))
{
case BINARY_PE_EXE:
case BINARY_PE_DLL:
mapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
if (mapping)
{
hmod = (HMODULE)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
CloseHandle( mapping );
}
break;
default:
break;
}
CloseHandle( hFile );
}
if (hmod) return (HMODULE)((ULONG_PTR)hmod + 1);
}
flags |= DONT_RESOLVE_DLL_REFERENCES; /* Just in case */
/* Fallback to normal behaviour */
}
RtlEnterCriticalSection( &loader_section );
wm = MODULE_LoadLibraryExA( libname, hfile, flags );
if ( wm )
{
if ( !MODULE_DllProcessAttach( wm, NULL ) )
{
WARN_(module)("Attach failed for module '%s'.\n", libname);
MODULE_FreeLibrary(wm);
SetLastError(ERROR_DLL_INIT_FAILED);
wm = NULL;
}
}
RtlLeaveCriticalSection( &loader_section );
return wm ? wm->module : 0;
}
/***********************************************************************
* allocate_lib_dir
*
* helper for MODULE_LoadLibraryExA. Allocate space to hold the directory
* portion of the provided name and put the name in it.
*
*/
static LPCSTR allocate_lib_dir(LPCSTR libname)
{
LPCSTR p, pmax;
LPSTR result;
int length;
pmax = libname;
if ((p = strrchr( pmax, '\\' ))) pmax = p + 1;
if ((p = strrchr( pmax, '/' ))) pmax = p + 1; /* Naughty. MSDN says don't */
if (pmax == libname && pmax[0] && pmax[1] == ':') pmax += 2;
length = pmax - libname;
result = HeapAlloc (GetProcessHeap(), 0, length+1);
if (result)
{
strncpy (result, libname, length);
result [length] = '\0';
}
return result;
}
/***********************************************************************
* MODULE_LoadLibraryExA (internal)
*
* Load a PE style module according to the load order.
*
* The HFILE parameter is not used and marked reserved in the SDK. I can
* only guess that it should force a file to be mapped, but I rather
* ignore the parameter because it would be extremely difficult to
* integrate this with different types of module representations.
*
* libdir is used to support LOAD_WITH_ALTERED_SEARCH_PATH during the recursion
* on this function. When first called from LoadLibraryExA it will be
* NULL but thereafter it may point to a buffer containing the path
* portion of the library name. Note that the recursion all occurs
* within a Critical section (see LoadLibraryExA) so the use of a
* static is acceptable.
* (We have to use a static variable at some point anyway, to pass the
* information from BUILTIN32_dlopen through dlopen and the builtin's
* init function into load_library).
* allocated_libdir is TRUE in the stack frame that allocated libdir
*/
WINE_MODREF *MODULE_LoadLibraryExA( LPCSTR libname, HANDLE hfile, DWORD flags )
{
DWORD err = GetLastError();
WINE_MODREF *pwm;
int i;
enum loadorder_type loadorder[LOADORDER_NTYPES];
LPSTR filename;
const char *filetype = "";
DWORD found;
BOOL allocated_libdir = FALSE;
static LPCSTR libdir = NULL; /* See above */
if ( !libname ) return NULL;
filename = HeapAlloc ( GetProcessHeap(), 0, MAX_PATH + 1 );
if ( !filename ) return NULL;
*filename = 0; /* Just in case we don't set it before goto error */
RtlEnterCriticalSection( &loader_section );
if ((flags & LOAD_WITH_ALTERED_SEARCH_PATH) && FILE_contains_path(libname))
{
if (!(libdir = allocate_lib_dir(libname))) goto error;
allocated_libdir = TRUE;
}
if (!libdir || allocated_libdir)
found = SearchPathA(NULL, libname, ".dll", MAX_PATH, filename, NULL);
else
found = DIR_SearchAlternatePath(libdir, libname, ".dll", MAX_PATH, filename, NULL);
/* build the modules filename */
if (!found)
{
if (!MODULE_GetBuiltinPath( libname, ".dll", filename, MAX_PATH )) goto error;
}
/* Check for already loaded module */
if (!(pwm = MODULE_FindModule(filename)) && !FILE_contains_path(libname))
{
LPSTR fn = HeapAlloc ( GetProcessHeap(), 0, MAX_PATH + 1 );
if (fn)
{
/* since the default loading mechanism uses a more detailed algorithm
* than SearchPath (like using PATH, which can even be modified between
* two attempts of loading the same DLL), the look-up above (with
* SearchPath) can have put the file in system directory, whereas it
* has already been loaded but with a different path. So do a specific
* look-up with filename (without any path)
*/
strcpy ( fn, libname );
/* if the filename doesn't have an extension append .DLL */
if (!strrchr( fn, '.')) strcat( fn, ".dll" );
if ((pwm = MODULE_FindModule( fn )) != NULL)
strcpy( filename, fn );
HeapFree( GetProcessHeap(), 0, fn );
}
}
if (pwm)
{
pwm->refCount++;
if ((pwm->flags & WINE_MODREF_DONT_RESOLVE_REFS) &&
!(flags & DONT_RESOLVE_DLL_REFERENCES))
{
pwm->flags &= ~WINE_MODREF_DONT_RESOLVE_REFS;
PE_fixup_imports( pwm );
}
TRACE("Already loaded module '%s' at 0x%08x, count=%d\n", filename, pwm->module, pwm->refCount);
if (allocated_libdir)
{
HeapFree ( GetProcessHeap(), 0, (LPSTR)libdir );
libdir = NULL;
}
RtlLeaveCriticalSection( &loader_section );
HeapFree ( GetProcessHeap(), 0, filename );
return pwm;
}
MODULE_GetLoadOrder( loadorder, filename, TRUE);
for(i = 0; i < LOADORDER_NTYPES; i++)
{
if (loadorder[i] == LOADORDER_INVALID) break;
SetLastError( ERROR_FILE_NOT_FOUND );
switch(loadorder[i])
{
case LOADORDER_DLL:
TRACE("Trying native dll '%s'\n", filename);
pwm = PE_LoadLibraryExA(filename, flags);
filetype = "native";
break;
case LOADORDER_SO:
TRACE("Trying so-library '%s'\n", filename);
pwm = ELF_LoadLibraryExA(filename, flags);
filetype = "so";
break;
case LOADORDER_BI:
TRACE("Trying built-in '%s'\n", filename);
pwm = BUILTIN32_LoadLibraryExA(filename, flags);
filetype = "builtin";
break;
default:
pwm = NULL;
break;
}
if(pwm)
{
/* Initialize DLL just loaded */
TRACE("Loaded module '%s' at 0x%08x\n", filename, pwm->module);
if (!TRACE_ON(module))
TRACE_(loaddll)("Loaded module '%s' : %s\n", filename, filetype);
/* Set the refCount here so that an attach failure will */
/* decrement the dependencies through the MODULE_FreeLibrary call. */
pwm->refCount = 1;
if (allocated_libdir)
{
HeapFree ( GetProcessHeap(), 0, (LPSTR)libdir );
libdir = NULL;
}
RtlLeaveCriticalSection( &loader_section );
SetLastError( err ); /* restore last error */
HeapFree ( GetProcessHeap(), 0, filename );
return pwm;
}
if(GetLastError() != ERROR_FILE_NOT_FOUND)
{
WARN("Loading of %s DLL %s failed (error %ld).\n",
filetype, filename, GetLastError());
break;
}
}
error:
if (allocated_libdir)
{
HeapFree ( GetProcessHeap(), 0, (LPSTR)libdir );
libdir = NULL;
}
RtlLeaveCriticalSection( &loader_section );
WARN("Failed to load module '%s'; error=%ld\n", filename, GetLastError());
HeapFree ( GetProcessHeap(), 0, filename );
return NULL;
}
/***********************************************************************
* LoadLibraryA (KERNEL32.@)
*/
HMODULE WINAPI LoadLibraryA(LPCSTR libname) {
return LoadLibraryExA(libname,0,0);
}
/***********************************************************************
* LoadLibraryW (KERNEL32.@)
*/
HMODULE WINAPI LoadLibraryW(LPCWSTR libnameW)
{
return LoadLibraryExW(libnameW,0,0);
}
/***********************************************************************
* LoadLibrary32 (KERNEL.452)
* LoadSystemLibrary32 (KERNEL.482)
*/
HMODULE WINAPI LoadLibrary32_16( LPCSTR libname )
{
HMODULE hModule;
DWORD count;
ReleaseThunkLock( &count );
hModule = LoadLibraryA( libname );
RestoreThunkLock( count );
return hModule;
}
/***********************************************************************
* LoadLibraryExW (KERNEL32.@)
*/
HMODULE WINAPI LoadLibraryExW(LPCWSTR libnameW,HANDLE hfile,DWORD flags)
{
LPSTR libnameA = HEAP_strdupWtoA( GetProcessHeap(), 0, libnameW );
HMODULE ret = LoadLibraryExA( libnameA , hfile, flags );
HeapFree( GetProcessHeap(), 0, libnameA );
return ret;
}
/***********************************************************************
* MODULE_FlushModrefs
*
* NOTE: Assumes that the process critical section is held!
*
* Remove all unused modrefs and call the internal unloading routines
* for the library type.
*/
static void MODULE_FlushModrefs(void)
{
WINE_MODREF *wm, *next;
for(wm = MODULE_modref_list; wm; wm = next)
{
next = wm->next;
if(wm->refCount)
continue;
/* Unlink this modref from the chain */
if(wm->next)
wm->next->prev = wm->prev;
if(wm->prev)
wm->prev->next = wm->next;
if(wm == MODULE_modref_list)
MODULE_modref_list = wm->next;
TRACE(" unloading %s\n", wm->filename);
if (!TRACE_ON(module))
TRACE_(loaddll)("Unloaded module '%s' : %s\n", wm->filename,
wm->dlhandle ? "builtin" : "native" );
if (wm->dlhandle) wine_dll_unload( wm->dlhandle );
else UnmapViewOfFile( (LPVOID)wm->module );
FreeLibrary16(wm->hDummyMod);
HeapFree( GetProcessHeap(), 0, wm->deps );
HeapFree( GetProcessHeap(), 0, wm );
}
}
/***********************************************************************
* FreeLibrary (KERNEL32.@)
* FreeLibrary32 (KERNEL.486)
*/
BOOL WINAPI FreeLibrary(HINSTANCE hLibModule)
{
BOOL retv = FALSE;
WINE_MODREF *wm;
if (!hLibModule)
{
SetLastError( ERROR_INVALID_HANDLE );
return FALSE;
}
if ((ULONG_PTR)hLibModule & 1)
{
/* this is a LOAD_LIBRARY_AS_DATAFILE module */
char *ptr = (char *)hLibModule - 1;
UnmapViewOfFile( ptr );
return TRUE;
}
RtlEnterCriticalSection( &loader_section );
free_lib_count++;
if ((wm = MODULE32_LookupHMODULE( hLibModule ))) retv = MODULE_FreeLibrary( wm );
free_lib_count--;
RtlLeaveCriticalSection( &loader_section );
return retv;
}
/***********************************************************************
* MODULE_DecRefCount
*
* NOTE: Assumes that the process critical section is held!
*/
static void MODULE_DecRefCount( WINE_MODREF *wm )
{
int i;
if ( wm->flags & WINE_MODREF_MARKER )
return;
if ( wm->refCount <= 0 )
return;
--wm->refCount;
TRACE("(%s) refCount: %d\n", wm->modname, wm->refCount );
if ( wm->refCount == 0 )
{
wm->flags |= WINE_MODREF_MARKER;
for ( i = 0; i < wm->nDeps; i++ )
if ( wm->deps[i] )
MODULE_DecRefCount( wm->deps[i] );
wm->flags &= ~WINE_MODREF_MARKER;
}
}
/***********************************************************************
* MODULE_FreeLibrary
*
* NOTE: Assumes that the process critical section is held!
*/
BOOL MODULE_FreeLibrary( WINE_MODREF *wm )
{
TRACE("(%s) - START\n", wm->modname );
/* Recursively decrement reference counts */
MODULE_DecRefCount( wm );
/* Call process detach notifications */
if ( free_lib_count <= 1 )
{
MODULE_DllProcessDetach( FALSE, NULL );
SERVER_START_REQ( unload_dll )
{
req->base = (void *)wm->module;
wine_server_call( req );
}
SERVER_END_REQ;
MODULE_FlushModrefs();
}
TRACE("END\n");
return TRUE;
}
/***********************************************************************
* FreeLibraryAndExitThread (KERNEL32.@)
*/
VOID WINAPI FreeLibraryAndExitThread(HINSTANCE hLibModule, DWORD dwExitCode)
{
FreeLibrary(hLibModule);
ExitThread(dwExitCode);
}
/***********************************************************************
* PrivateLoadLibrary (KERNEL32.@)
*
* FIXME: rough guesswork, don't know what "Private" means
*/
HINSTANCE16 WINAPI PrivateLoadLibrary(LPCSTR libname)
{
return LoadLibrary16(libname);
}
/***********************************************************************
* PrivateFreeLibrary (KERNEL32.@)
*
* FIXME: rough guesswork, don't know what "Private" means
*/
void WINAPI PrivateFreeLibrary(HINSTANCE16 handle)
{
FreeLibrary16(handle);
}
/***********************************************************************
* GetProcAddress16 (KERNEL32.37)
* Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
*/
FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
{
if (!hModule) {
WARN("hModule may not be 0!\n");
return (FARPROC16)0;
}
if (HIWORD(hModule))
{
WARN("hModule is Win32 handle (%08x)\n", hModule );
return (FARPROC16)0;
}
return GetProcAddress16( LOWORD(hModule), name );
}
/***********************************************************************
* GetProcAddress (KERNEL.50)
*/
FARPROC16 WINAPI GetProcAddress16( HMODULE16 hModule, LPCSTR name )
{
WORD ordinal;
FARPROC16 ret;
if (!hModule) hModule = GetCurrentTask();
hModule = GetExePtr( hModule );
if (HIWORD(name) != 0)
{
ordinal = NE_GetOrdinal( hModule, name );
TRACE("%04x '%s'\n", hModule, name );
}
else
{
ordinal = LOWORD(name);
TRACE("%04x %04x\n", hModule, ordinal );
}
if (!ordinal) return (FARPROC16)0;
ret = NE_GetEntryPoint( hModule, ordinal );
TRACE("returning %08x\n", (UINT)ret );
return ret;
}
/***********************************************************************
* GetProcAddress (KERNEL32.@)
*/
FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function )
{
return MODULE_GetProcAddress( hModule, function, -1, TRUE );
}
/***********************************************************************
* GetProcAddress32 (KERNEL.453)
*/
FARPROC WINAPI GetProcAddress32_16( HMODULE hModule, LPCSTR function )
{
return MODULE_GetProcAddress( hModule, function, -1, FALSE );
}
/***********************************************************************
* MODULE_GetProcAddress (internal)
*/
FARPROC MODULE_GetProcAddress(
HMODULE hModule, /* [in] current module handle */
LPCSTR function, /* [in] function to be looked up */
int hint,
BOOL snoop )
{
WINE_MODREF *wm;
FARPROC retproc = 0;
if (HIWORD(function))
TRACE_(win32)("(%08lx,%s (%d))\n",(DWORD)hModule,function,hint);
else
TRACE_(win32)("(%08lx,%p)\n",(DWORD)hModule,function);
RtlEnterCriticalSection( &loader_section );
if ((wm = MODULE32_LookupHMODULE( hModule )))
{
retproc = wm->find_export( wm, function, hint, snoop );
if (!retproc) SetLastError(ERROR_PROC_NOT_FOUND);
}
RtlLeaveCriticalSection( &loader_section );
return retproc;
}
/***************************************************************************
* HasGPHandler (KERNEL.338)
*/
#include "pshpack1.h"
typedef struct _GPHANDLERDEF
{
WORD selector;
WORD rangeStart;
WORD rangeEnd;
WORD handler;
} GPHANDLERDEF;
#include "poppack.h"
SEGPTR WINAPI HasGPHandler16( SEGPTR address )
{
HMODULE16 hModule;
int gpOrdinal;
SEGPTR gpPtr;
GPHANDLERDEF *gpHandler;
if ( (hModule = FarGetOwner16( SELECTOROF(address) )) != 0
&& (gpOrdinal = NE_GetOrdinal( hModule, "__GP" )) != 0
&& (gpPtr = (SEGPTR)NE_GetEntryPointEx( hModule, gpOrdinal, FALSE )) != 0
&& !IsBadReadPtr16( gpPtr, sizeof(GPHANDLERDEF) )
&& (gpHandler = MapSL( gpPtr )) != NULL )
{
while (gpHandler->selector)
{
if ( SELECTOROF(address) == gpHandler->selector
&& OFFSETOF(address) >= gpHandler->rangeStart
&& OFFSETOF(address) < gpHandler->rangeEnd )
return MAKESEGPTR( gpHandler->selector, gpHandler->handler );
gpHandler++;
}
}
return 0;
}