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Sweden-Number/dlls/kernel/ne_module.c

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Moved most of the 16-bit task support and NE module loader to dlls/kernel.
2003-08-23 02:03:40 +02:00
/*
* NE 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <ctype.h>
#include "winbase.h"
#include "wine/winbase16.h"
#include "winerror.h"
#include "wownt32.h"
#include "wine/library.h"
#include "module.h"
#include "toolhelp.h"
#include "file.h"
#include "task.h"
#include "snoop.h"
#include "builtin16.h"
#include "stackframe.h"
#include "excpt.h"
#include "wine/exception.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(module);
WINE_DECLARE_DEBUG_CHANNEL(loaddll);
#include "pshpack1.h"
typedef struct _GPHANDLERDEF
{
WORD selector;
WORD rangeStart;
WORD rangeEnd;
WORD handler;
} GPHANDLERDEF;
#include "poppack.h"
/*
* Segment table entry
*/
struct ne_segment_table_entry_s
{
WORD seg_data_offset; /* Sector offset of segment data */
WORD seg_data_length; /* Length of segment data */
WORD seg_flags; /* Flags associated with this segment */
WORD min_alloc; /* Minimum allocation size for this */
};
#define hFirstModule (pThhook->hExeHead)
static NE_MODULE *pCachedModule = 0; /* Module cached by NE_OpenFile */
static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only );
static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep );
static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only );
static HMODULE16 NE_GetModuleByFilename( LPCSTR name );
static WINE_EXCEPTION_FILTER(page_fault)
{
if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION ||
GetExceptionCode() == EXCEPTION_PRIV_INSTRUCTION)
return EXCEPTION_EXECUTE_HANDLER;
return EXCEPTION_CONTINUE_SEARCH;
}
/***********************************************************************
* NE_DumpModule
*/
void NE_DumpModule( HMODULE16 hModule )
{
int i, ordinal;
SEGTABLEENTRY *pSeg;
BYTE *pstr;
WORD *pword;
NE_MODULE *pModule;
ET_BUNDLE *bundle;
ET_ENTRY *entry;
if (!(pModule = NE_GetPtr( hModule )))
{
MESSAGE( "**** %04x is not a module handle\n", hModule );
return;
}
/* Dump the module info */
DPRINTF( "---\n" );
DPRINTF( "Module %04x:\n", hModule );
DPRINTF( "count=%d flags=%04x heap=%d stack=%d\n",
pModule->count, pModule->flags,
pModule->heap_size, pModule->stack_size );
DPRINTF( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
pModule->cs, pModule->ip, pModule->ss, pModule->sp, pModule->dgroup,
pModule->seg_count, pModule->modref_count );
DPRINTF( "os_flags=%d swap_area=%d version=%04x\n",
pModule->os_flags, pModule->min_swap_area,
pModule->expected_version );
if (pModule->flags & NE_FFLAGS_WIN32)
DPRINTF( "PE module=%p\n", pModule->module32 );
/* Dump the file info */
DPRINTF( "---\n" );
DPRINTF( "Filename: '%s'\n", NE_MODULE_NAME(pModule) );
/* Dump the segment table */
DPRINTF( "---\n" );
DPRINTF( "Segment table:\n" );
pSeg = NE_SEG_TABLE( pModule );
for (i = 0; i < pModule->seg_count; i++, pSeg++)
DPRINTF( "%02x: pos=%d size=%d flags=%04x minsize=%d hSeg=%04x\n",
i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
pSeg->minsize, pSeg->hSeg );
/* Dump the resource table */
DPRINTF( "---\n" );
DPRINTF( "Resource table:\n" );
if (pModule->res_table)
{
pword = (WORD *)((BYTE *)pModule + pModule->res_table);
DPRINTF( "Alignment: %d\n", *pword++ );
while (*pword)
{
NE_TYPEINFO *ptr = (NE_TYPEINFO *)pword;
NE_NAMEINFO *pname = (NE_NAMEINFO *)(ptr + 1);
DPRINTF( "id=%04x count=%d\n", ptr->type_id, ptr->count );
for (i = 0; i < ptr->count; i++, pname++)
DPRINTF( "offset=%d len=%d id=%04x\n",
pname->offset, pname->length, pname->id );
pword = (WORD *)pname;
}
}
else DPRINTF( "None\n" );
/* Dump the resident name table */
DPRINTF( "---\n" );
DPRINTF( "Resident-name table:\n" );
pstr = (char *)pModule + pModule->name_table;
while (*pstr)
{
DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
*(WORD *)(pstr + *pstr + 1) );
pstr += *pstr + 1 + sizeof(WORD);
}
/* Dump the module reference table */
DPRINTF( "---\n" );
DPRINTF( "Module ref table:\n" );
if (pModule->modref_table)
{
pword = (WORD *)((BYTE *)pModule + pModule->modref_table);
for (i = 0; i < pModule->modref_count; i++, pword++)
{
char name[10];
GetModuleName16( *pword, name, sizeof(name) );
DPRINTF( "%d: %04x -> '%s'\n", i, *pword, name );
}
}
else DPRINTF( "None\n" );
/* Dump the entry table */
DPRINTF( "---\n" );
DPRINTF( "Entry table:\n" );
bundle = (ET_BUNDLE *)((BYTE *)pModule+pModule->entry_table);
do {
entry = (ET_ENTRY *)((BYTE *)bundle+6);
DPRINTF( "Bundle %d-%d: %02x\n", bundle->first, bundle->last, entry->type);
ordinal = bundle->first;
while (ordinal < bundle->last)
{
if (entry->type == 0xff)
DPRINTF("%d: %02x:%04x (moveable)\n", ordinal++, entry->segnum, entry->offs);
else
DPRINTF("%d: %02x:%04x (fixed)\n", ordinal++, entry->segnum, entry->offs);
entry++;
}
} while ( (bundle->next) && (bundle = ((ET_BUNDLE *)((BYTE *)pModule + bundle->next))) );
/* Dump the non-resident names table */
DPRINTF( "---\n" );
DPRINTF( "Non-resident names table:\n" );
if (pModule->nrname_handle)
{
pstr = (char *)GlobalLock16( pModule->nrname_handle );
while (*pstr)
{
DPRINTF( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
*(WORD *)(pstr + *pstr + 1) );
pstr += *pstr + 1 + sizeof(WORD);
}
}
DPRINTF( "\n" );
}
/***********************************************************************
* NE_WalkModules
*
* Walk the module list and print the modules.
*/
void NE_WalkModules(void)
{
HMODULE16 hModule = hFirstModule;
MESSAGE( "Module Flags Name\n" );
while (hModule)
{
NE_MODULE *pModule = NE_GetPtr( hModule );
if (!pModule)
{
MESSAGE( "Bad module %04x in list\n", hModule );
return;
}
MESSAGE( " %04x %04x %.*s\n", hModule, pModule->flags,
*((char *)pModule + pModule->name_table),
(char *)pModule + pModule->name_table + 1 );
hModule = pModule->next;
}
}
/***********************************************************************
* EntryAddrProc (KERNEL.667) Wine-specific export
*
* Return the entry point for a given ordinal.
*/
FARPROC16 WINAPI EntryAddrProc16( HMODULE16 hModule, WORD ordinal )
{
FARPROC16 ret = NE_GetEntryPointEx( hModule, ordinal, TRUE );
CURRENT_STACK16->ecx = hModule; /* FIXME: might be incorrect value */
return ret;
}
/***********************************************************************
* NE_SetEntryPoint
*
* Change the value of an entry point. Use with caution!
* It can only change the offset value, not the selector.
*/
BOOL16 NE_SetEntryPoint( HMODULE16 hModule, WORD ordinal, WORD offset )
{
NE_MODULE *pModule;
ET_ENTRY *entry;
ET_BUNDLE *bundle;
int i;
if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
assert( !(pModule->flags & NE_FFLAGS_WIN32) );
bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->entry_table);
while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
{
bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
if (!(bundle->next)) return 0;
}
entry = (ET_ENTRY *)((BYTE *)bundle+6);
for (i=0; i < (ordinal - bundle->first - 1); i++)
entry++;
memcpy( &entry->offs, &offset, sizeof(WORD) );
return TRUE;
}
/***********************************************************************
* NE_OpenFile
*/
HANDLE NE_OpenFile( NE_MODULE *pModule )
{
HANDLE handle;
char *name;
TRACE("(%p)\n", pModule );
/* mjm - removed module caching because it keeps open file handles
thus preventing CDROMs from being ejected */
name = NE_MODULE_NAME( pModule );
if ((handle = CreateFileA( name, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, 0, 0 )) == INVALID_HANDLE_VALUE)
MESSAGE( "Can't open file '%s' for module %04x\n", name, pModule->self );
TRACE("opened '%s' -> %p\n", name, handle);
return handle;
}
/* wrapper for SetFilePointer and ReadFile */
static BOOL read_data( HANDLE handle, LONG offset, void *buffer, DWORD size )
{
DWORD result;
if (SetFilePointer( handle, offset, NULL, SEEK_SET ) == INVALID_SET_FILE_POINTER) return FALSE;
if (!ReadFile( handle, buffer, size, &result, NULL )) return FALSE;
return (result == size);
}
/***********************************************************************
* NE_LoadExeHeader
*/
static HMODULE16 NE_LoadExeHeader( HANDLE handle, LPCSTR path )
{
IMAGE_DOS_HEADER mz_header;
IMAGE_OS2_HEADER ne_header;
int size;
HMODULE16 hModule;
NE_MODULE *pModule;
BYTE *pData, *pTempEntryTable;
char *buffer, *fastload = NULL;
int fastload_offset = 0, fastload_length = 0;
ET_ENTRY *entry;
ET_BUNDLE *bundle, *oldbundle;
OFSTRUCT *ofs;
/* Read a block from either the file or the fast-load area. */
#define READ(offset,size,buffer) \
((fastload && ((offset) >= fastload_offset) && \
((offset)+(size) <= fastload_offset+fastload_length)) ? \
(memcpy( buffer, fastload+(offset)-fastload_offset, (size) ), TRUE) : \
read_data( handle, (offset), (buffer), (size)))
if (!read_data( handle, 0, &mz_header, sizeof(mz_header)) ||
(mz_header.e_magic != IMAGE_DOS_SIGNATURE))
return (HMODULE16)11; /* invalid exe */
if (!read_data( handle, mz_header.e_lfanew, &ne_header, sizeof(ne_header) ))
return (HMODULE16)11; /* invalid exe */
if (ne_header.ne_magic == IMAGE_NT_SIGNATURE) return (HMODULE16)21; /* win32 exe */
if (ne_header.ne_magic == IMAGE_OS2_SIGNATURE_LX) {
MESSAGE("Sorry, this is an OS/2 linear executable (LX) file !\n");
return (HMODULE16)12;
}
if (ne_header.ne_magic != IMAGE_OS2_SIGNATURE) return (HMODULE16)11; /* invalid exe */
/* We now have a valid NE header */
size = sizeof(NE_MODULE) +
/* segment table */
ne_header.ne_cseg * sizeof(SEGTABLEENTRY) +
/* resource table */
ne_header.ne_restab - ne_header.ne_rsrctab +
/* resident names table */
ne_header.ne_modtab - ne_header.ne_restab +
/* module ref table */
ne_header.ne_cmod * sizeof(WORD) +
/* imported names table */
ne_header.ne_enttab - ne_header.ne_imptab +
/* entry table length */
ne_header.ne_cbenttab +
/* entry table extra conversion space */
sizeof(ET_BUNDLE) +
2 * (ne_header.ne_cbenttab - ne_header.ne_cmovent*6) +
/* loaded file info */
sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
hModule = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, size );
if (!hModule) return (HMODULE16)11; /* invalid exe */
FarSetOwner16( hModule, hModule );
pModule = (NE_MODULE *)GlobalLock16( hModule );
memcpy( pModule, &ne_header, sizeof(ne_header) );
pModule->count = 0;
/* check *programs* for default minimal stack size */
if ( (!(pModule->flags & NE_FFLAGS_LIBMODULE))
&& (pModule->stack_size < 0x1400) )
pModule->stack_size = 0x1400;
pModule->module32 = 0;
pModule->self = hModule;
pModule->self_loading_sel = 0;
pData = (BYTE *)(pModule + 1);
/* Clear internal Wine flags in case they are set in the EXE file */
pModule->flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
/* Read the fast-load area */
if (ne_header.ne_flagsothers & NE_AFLAGS_FASTLOAD)
{
fastload_offset=ne_header.ne_pretthunks << ne_header.ne_align;
fastload_length=ne_header.ne_psegrefbytes << ne_header.ne_align;
TRACE("Using fast-load area offset=%x len=%d\n",
fastload_offset, fastload_length );
if ((fastload = HeapAlloc( GetProcessHeap(), 0, fastload_length )) != NULL)
{
if (!read_data( handle, fastload_offset, fastload, fastload_length))
{
HeapFree( GetProcessHeap(), 0, fastload );
WARN("Error reading fast-load area!\n");
fastload = NULL;
}
}
}
/* Get the segment table */
pModule->seg_table = pData - (BYTE *)pModule;
buffer = HeapAlloc( GetProcessHeap(), 0, ne_header.ne_cseg *
sizeof(struct ne_segment_table_entry_s));
if (buffer)
{
int i;
struct ne_segment_table_entry_s *pSeg;
if (!READ( mz_header.e_lfanew + ne_header.ne_segtab,
ne_header.ne_cseg * sizeof(struct ne_segment_table_entry_s),
buffer ))
{
HeapFree( GetProcessHeap(), 0, buffer );
if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
GlobalFree16( hModule );
return (HMODULE16)11; /* invalid exe */
}
pSeg = (struct ne_segment_table_entry_s *)buffer;
for (i = ne_header.ne_cseg; i > 0; i--, pSeg++)
{
memcpy( pData, pSeg, sizeof(*pSeg) );
pData += sizeof(SEGTABLEENTRY);
}
HeapFree( GetProcessHeap(), 0, buffer );
}
else
{
if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
GlobalFree16( hModule );
return (HMODULE16)11; /* invalid exe */
}
/* Get the resource table */
if (ne_header.ne_rsrctab < ne_header.ne_restab)
{
pModule->res_table = pData - (BYTE *)pModule;
if (!READ(mz_header.e_lfanew + ne_header.ne_rsrctab,
ne_header.ne_restab - ne_header.ne_rsrctab,
pData ))
return (HMODULE16)11; /* invalid exe */
pData += ne_header.ne_restab - ne_header.ne_rsrctab;
NE_InitResourceHandler( pModule );
}
else pModule->res_table = 0; /* No resource table */
/* Get the resident names table */
pModule->name_table = pData - (BYTE *)pModule;
if (!READ( mz_header.e_lfanew + ne_header.ne_restab,
ne_header.ne_modtab - ne_header.ne_restab,
pData ))
{
if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
GlobalFree16( hModule );
return (HMODULE16)11; /* invalid exe */
}
pData += ne_header.ne_modtab - ne_header.ne_restab;
/* Get the module references table */
if (ne_header.ne_cmod > 0)
{
pModule->modref_table = pData - (BYTE *)pModule;
if (!READ( mz_header.e_lfanew + ne_header.ne_modtab,
ne_header.ne_cmod * sizeof(WORD),
pData ))
{
if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
GlobalFree16( hModule );
return (HMODULE16)11; /* invalid exe */
}
pData += ne_header.ne_cmod * sizeof(WORD);
}
else pModule->modref_table = 0; /* No module references */
/* Get the imported names table */
pModule->import_table = pData - (BYTE *)pModule;
if (!READ( mz_header.e_lfanew + ne_header.ne_imptab,
ne_header.ne_enttab - ne_header.ne_imptab,
pData ))
{
if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
GlobalFree16( hModule );
return (HMODULE16)11; /* invalid exe */
}
pData += ne_header.ne_enttab - ne_header.ne_imptab;
/* Load entry table, convert it to the optimized version used by Windows */
if ((pTempEntryTable = HeapAlloc( GetProcessHeap(), 0, ne_header.ne_cbenttab)) != NULL)
{
BYTE nr_entries, type, *s;
TRACE("Converting entry table.\n");
pModule->entry_table = pData - (BYTE *)pModule;
if (!READ( mz_header.e_lfanew + ne_header.ne_enttab,
ne_header.ne_cbenttab, pTempEntryTable ))
{
HeapFree( GetProcessHeap(), 0, pTempEntryTable );
if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
GlobalFree16( hModule );
return (HMODULE16)11; /* invalid exe */
}
s = pTempEntryTable;
TRACE("entry table: offs %04x, len %04x, entries %d\n", ne_header.ne_enttab, ne_header.ne_cbenttab, *s);
bundle = (ET_BUNDLE *)pData;
TRACE("first bundle: %p\n", bundle);
memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
entry = (ET_ENTRY *)((BYTE *)bundle+6);
while ((nr_entries = *s++))
{
if ((type = *s++))
{
bundle->last += nr_entries;
if (type == 0xff)
while (nr_entries--)
{
entry->type = type;
entry->flags = *s++;
s += 2;
entry->segnum = *s++;
entry->offs = *(WORD *)s; s += 2;
/*TRACE(module, "entry: %p, type: %d, flags: %d, segnum: %d, offs: %04x\n", entry, entry->type, entry->flags, entry->segnum, entry->offs);*/
entry++;
}
else
while (nr_entries--)
{
entry->type = type;
entry->flags = *s++;
entry->segnum = type;
entry->offs = *(WORD *)s; s += 2;
/*TRACE(module, "entry: %p, type: %d, flags: %d, segnum: %d, offs: %04x\n", entry, entry->type, entry->flags, entry->segnum, entry->offs);*/
entry++;
}
}
else
{
if (bundle->first == bundle->last)
{
bundle->first += nr_entries;
bundle->last += nr_entries;
}
else
{
oldbundle = bundle;
oldbundle->next = ((int)entry - (int)pModule);
bundle = (ET_BUNDLE *)entry;
TRACE("new bundle: %p\n", bundle);
bundle->first = bundle->last =
oldbundle->last + nr_entries;
bundle->next = 0;
(BYTE *)entry += sizeof(ET_BUNDLE);
}
}
}
HeapFree( GetProcessHeap(), 0, pTempEntryTable );
}
else
{
if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
GlobalFree16( hModule );
return (HMODULE16)11; /* invalid exe */
}
pData += ne_header.ne_cbenttab + sizeof(ET_BUNDLE) +
2 * (ne_header.ne_cbenttab - ne_header.ne_cmovent*6);
if ((DWORD)entry > (DWORD)pData)
ERR("converted entry table bigger than reserved space !!!\nentry: %p, pData: %p. Please report !\n", entry, pData);
/* Store the filename information */
pModule->fileinfo = pData - (BYTE *)pModule;
size = sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path) + 1;
ofs = (OFSTRUCT *)pData;
ofs->cBytes = size - 1;
ofs->fFixedDisk = 1;
strcpy( ofs->szPathName, path );
pData += size;
/* Free the fast-load area */
#undef READ
if (fastload) HeapFree( GetProcessHeap(), 0, fastload );
/* Get the non-resident names table */
if (ne_header.ne_cbnrestab)
{
pModule->nrname_handle = GlobalAlloc16( 0, ne_header.ne_cbnrestab );
if (!pModule->nrname_handle)
{
GlobalFree16( hModule );
return (HMODULE16)11; /* invalid exe */
}
FarSetOwner16( pModule->nrname_handle, hModule );
buffer = GlobalLock16( pModule->nrname_handle );
if (!read_data( handle, ne_header.ne_nrestab, buffer, ne_header.ne_cbnrestab ))
{
GlobalFree16( pModule->nrname_handle );
GlobalFree16( hModule );
return (HMODULE16)11; /* invalid exe */
}
}
else pModule->nrname_handle = 0;
/* Allocate a segment for the implicitly-loaded DLLs */
if (pModule->modref_count)
{
pModule->dlls_to_init = GlobalAlloc16( GMEM_ZEROINIT,
(pModule->modref_count+1)*sizeof(HMODULE16) );
if (!pModule->dlls_to_init)
{
if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
GlobalFree16( hModule );
return (HMODULE16)11; /* invalid exe */
}
FarSetOwner16( pModule->dlls_to_init, hModule );
}
else pModule->dlls_to_init = 0;
NE_RegisterModule( pModule );
SNOOP16_RegisterDLL(pModule,path);
return hModule;
}
/***********************************************************************
* NE_LoadDLLs
*
* Load all DLLs implicitly linked to a module.
*/
static BOOL NE_LoadDLLs( NE_MODULE *pModule )
{
int i;
WORD *pModRef = (WORD *)((char *)pModule + pModule->modref_table);
WORD *pDLLs = (WORD *)GlobalLock16( pModule->dlls_to_init );
for (i = 0; i < pModule->modref_count; i++, pModRef++)
{
char buffer[260], *p;
BYTE *pstr = (BYTE *)pModule + pModule->import_table + *pModRef;
memcpy( buffer, pstr + 1, *pstr );
*(buffer + *pstr) = 0; /* terminate it */
TRACE("Loading '%s'\n", buffer );
if (!(*pModRef = GetModuleHandle16( buffer )))
{
/* If the DLL is not loaded yet, load it and store */
/* its handle in the list of DLLs to initialize. */
HMODULE16 hDLL;
/* Append .DLL to name if no extension present */
if (!(p = strrchr( buffer, '.')) || strchr( p, '/' ) || strchr( p, '\\'))
strcat( buffer, ".DLL" );
if ((hDLL = MODULE_LoadModule16( buffer, TRUE, TRUE )) < 32)
{
/* FIXME: cleanup what was done */
MESSAGE( "Could not load '%s' required by '%.*s', error=%d\n",
buffer, *((BYTE*)pModule + pModule->name_table),
(char *)pModule + pModule->name_table + 1, hDLL );
return FALSE;
}
*pModRef = GetExePtr( hDLL );
*pDLLs++ = *pModRef;
}
else /* Increment the reference count of the DLL */
{
NE_MODULE *pOldDLL = NE_GetPtr( *pModRef );
if (pOldDLL) pOldDLL->count++;
}
}
return TRUE;
}
/**********************************************************************
* NE_DoLoadModule
*
* Load first instance of NE module from file.
*
* pModule must point to a module structure prepared by NE_LoadExeHeader.
* This routine must never be called twice on a module.
*
*/
static HINSTANCE16 NE_DoLoadModule( NE_MODULE *pModule )
{
/* Allocate the segments for this module */
if (!NE_CreateAllSegments( pModule ))
return ERROR_NOT_ENOUGH_MEMORY; /* 8 */
/* Load the referenced DLLs */
if (!NE_LoadDLLs( pModule ))
return ERROR_FILE_NOT_FOUND; /* 2 */
/* Load the segments */
NE_LoadAllSegments( pModule );
/* Make sure the usage count is 1 on the first loading of */
/* the module, even if it contains circular DLL references */
pModule->count = 1;
return NE_GetInstance( pModule );
}
/**********************************************************************
* NE_LoadModule
*
* Load first instance of NE module. (Note: caller is responsible for
* ensuring the module isn't already loaded!)
*
* If the module turns out to be an executable module, only a
* handle to a module stub is returned; this needs to be initialized
* by calling NE_DoLoadModule later, in the context of the newly
* created process.
*
* If lib_only is TRUE, however, the module is perforce treated
* like a DLL module, even if it is an executable module.
*
*/
static HINSTANCE16 NE_LoadModule( LPCSTR name, BOOL lib_only )
{
NE_MODULE *pModule;
HMODULE16 hModule;
HINSTANCE16 hInstance;
HFILE16 hFile;
OFSTRUCT ofs;
/* Open file */
if ((hFile = OpenFile16( name, &ofs, OF_READ )) == HFILE_ERROR16)
return (HMODULE16)2; /* File not found */
hModule = NE_LoadExeHeader( DosFileHandleToWin32Handle(hFile), ofs.szPathName );
_lclose16( hFile );
if (hModule < 32) return hModule;
pModule = NE_GetPtr( hModule );
if ( !pModule ) return hModule;
if ( !lib_only && !( pModule->flags & NE_FFLAGS_LIBMODULE ) )
return hModule;
hInstance = NE_DoLoadModule( pModule );
if ( hInstance < 32 )
{
/* cleanup ... */
NE_FreeModule( hModule, 0 );
}
return hInstance;
}
/**********************************************************************
* MODULE_LoadModule16
*
* Load a NE module in the order of the loadorder specification.
* The caller is responsible that the module is not loaded already.
*
*/
static HINSTANCE16 MODULE_LoadModule16( LPCSTR libname, BOOL implicit, BOOL lib_only )
{
HINSTANCE16 hinst = 2;
enum loadorder_type loadorder[LOADORDER_NTYPES];
int i;
const char *filetype = "";
MODULE_GetLoadOrder(loadorder, libname, FALSE);
for(i = 0; i < LOADORDER_NTYPES; i++)
{
if (loadorder[i] == LOADORDER_INVALID) break;
switch(loadorder[i])
{
case LOADORDER_DLL:
TRACE("Trying native dll '%s'\n", libname);
hinst = NE_LoadModule(libname, lib_only);
filetype = "native";
break;
case LOADORDER_BI:
TRACE("Trying built-in '%s'\n", libname);
hinst = BUILTIN_LoadModule(libname);
filetype = "builtin";
break;
default:
hinst = 2;
break;
}
if(hinst >= 32)
{
TRACE_(loaddll)("Loaded module '%s' : %s\n", libname, filetype);
if(!implicit)
{
HMODULE16 hModule;
NE_MODULE *pModule;
hModule = GetModuleHandle16(libname);
if(!hModule)
{
ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get module handle. Filename too long ?\n",
libname, hinst);
return 6; /* ERROR_INVALID_HANDLE seems most appropriate */
}
pModule = NE_GetPtr(hModule);
if(!pModule)
{
ERR("Serious trouble. Just loaded module '%s' (hinst=0x%04x), but can't get NE_MODULE pointer\n",
libname, hinst);
return 6; /* ERROR_INVALID_HANDLE seems most appropriate */
}
TRACE("Loaded module '%s' at 0x%04x.\n", libname, hinst);
/*
* Call initialization routines for all loaded DLLs. Note that
* when we load implicitly linked DLLs this will be done by InitTask().
*/
if(pModule->flags & NE_FFLAGS_LIBMODULE)
{
NE_InitializeDLLs(hModule);
NE_DllProcessAttach(hModule);
}
}
return hinst;
}
if(hinst != 2)
{
/* We quit searching when we get another error than 'File not found' */
break;
}
}
return hinst; /* The last error that occurred */
}
/**********************************************************************
* NE_CreateThread
*
* Create the thread for a 16-bit module.
*/
static HINSTANCE16 NE_CreateThread( NE_MODULE *pModule, WORD cmdShow, LPCSTR cmdline )
{
HANDLE hThread;
TDB *pTask;
HTASK16 hTask;
HINSTANCE16 instance = 0;
if (!(hTask = TASK_SpawnTask( pModule, cmdShow, cmdline + 1, *cmdline, &hThread )))
return 0;
/* Post event to start the task */
PostEvent16( hTask );
/* Wait until we get the instance handle */
do
{
DirectedYield16( hTask );
if (!IsTask16( hTask )) /* thread has died */
{
DWORD exit_code;
WaitForSingleObject( hThread, INFINITE );
GetExitCodeThread( hThread, &exit_code );
CloseHandle( hThread );
return exit_code;
}
if (!(pTask = GlobalLock16( hTask ))) break;
instance = pTask->hInstance;
GlobalUnlock16( hTask );
} while (!instance);
CloseHandle( hThread );
return instance;
}
/**********************************************************************
* LoadModule (KERNEL.45)
*/
HINSTANCE16 WINAPI LoadModule16( LPCSTR name, LPVOID paramBlock )
{
BOOL lib_only = !paramBlock || (paramBlock == (LPVOID)-1);
LOADPARAMS16 *params;
HMODULE16 hModule;
NE_MODULE *pModule;
LPSTR cmdline;
WORD cmdShow;
/* Load module */
if ( (hModule = NE_GetModuleByFilename(name) ) != 0 )
{
/* Special case: second instance of an already loaded NE module */
if ( !( pModule = NE_GetPtr( hModule ) ) ) return (HINSTANCE16)11;
if ( pModule->module32 ) return (HINSTANCE16)21;
/* Increment refcount */
pModule->count++;
}
else
{
/* Main case: load first instance of NE module */
if ( (hModule = MODULE_LoadModule16( name, FALSE, lib_only )) < 32 )
return hModule;
if ( !(pModule = NE_GetPtr( hModule )) )
return (HINSTANCE16)11;
}
/* If library module, we just retrieve the instance handle */
if ( ( pModule->flags & NE_FFLAGS_LIBMODULE ) || lib_only )
return NE_GetInstance( pModule );
/*
* At this point, we need to create a new process.
*
* pModule points either to an already loaded module, whose refcount
* has already been incremented (to avoid having the module vanish
* in the meantime), or else to a stub module which contains only header
* information.
*/
params = (LOADPARAMS16 *)paramBlock;
cmdShow = ((WORD *)MapSL(params->showCmd))[1];
cmdline = MapSL( params->cmdLine );
return NE_CreateThread( pModule, cmdShow, cmdline );
}
/**********************************************************************
* NE_StartTask
*
* Startup code for a new 16-bit task.
*/
DWORD NE_StartTask(void)
{
TDB *pTask = TASK_GetCurrent();
NE_MODULE *pModule = NE_GetPtr( pTask->hModule );
HINSTANCE16 hInstance, hPrevInstance;
SEGTABLEENTRY *pSegTable = NE_SEG_TABLE( pModule );
WORD sp;
if ( pModule->count > 0 )
{
/* Second instance of an already loaded NE module */
/* Note that the refcount was already incremented by the parent */
hPrevInstance = NE_GetInstance( pModule );
if ( pModule->dgroup )
if ( NE_CreateSegment( pModule, pModule->dgroup ) )
NE_LoadSegment( pModule, pModule->dgroup );
hInstance = NE_GetInstance( pModule );
TRACE("created second instance %04x[%d] of instance %04x.\n", hInstance, pModule->dgroup, hPrevInstance);
}
else
{
/* Load first instance of NE module */
pModule->flags |= NE_FFLAGS_GUI; /* FIXME: is this necessary? */
hInstance = NE_DoLoadModule( pModule );
hPrevInstance = 0;
}
if ( hInstance >= 32 )
{
CONTEXT86 context;
/* Enter instance handles into task struct */
pTask->hInstance = hInstance;
pTask->hPrevInstance = hPrevInstance;
/* Use DGROUP for 16-bit stack */
if (!(sp = pModule->sp))
sp = pSegTable[pModule->ss-1].minsize + pModule->stack_size;
sp &= ~1;
sp -= sizeof(STACK16FRAME);
pTask->teb->cur_stack = MAKESEGPTR( GlobalHandleToSel16(hInstance), sp );
/* Registers at initialization must be:
* ax zero
* bx stack size in bytes
* cx heap size in bytes
* si previous app instance
* di current app instance
* bp zero
* es selector to the PSP
* ds dgroup of the application
* ss stack selector
* sp top of the stack
*/
memset( &context, 0, sizeof(context) );
context.SegCs = GlobalHandleToSel16(pSegTable[pModule->cs - 1].hSeg);
context.SegDs = GlobalHandleToSel16(pTask->hInstance);
context.SegEs = pTask->hPDB;
context.Eip = pModule->ip;
context.Ebx = pModule->stack_size;
context.Ecx = pModule->heap_size;
context.Edi = pTask->hInstance;
context.Esi = pTask->hPrevInstance;
/* Now call 16-bit entry point */
TRACE("Starting main program: cs:ip=%04lx:%04lx ds=%04lx ss:sp=%04x:%04x\n",
context.SegCs, context.Eip, context.SegDs,
SELECTOROF(pTask->teb->cur_stack),
OFFSETOF(pTask->teb->cur_stack) );
wine_call_to_16_regs_short( &context, 0 );
ExitThread( LOWORD(context.Eax) );
}
return hInstance; /* error code */
}
/***********************************************************************
* LoadLibrary (KERNEL.95)
* LoadLibrary16 (KERNEL32.35)
*/
HINSTANCE16 WINAPI LoadLibrary16( LPCSTR libname )
{
return LoadModule16(libname, (LPVOID)-1 );
}
/**********************************************************************
* MODULE_CallWEP
*
* Call a DLL's WEP, allowing it to shut down.
* FIXME: we always pass the WEP WEP_FREE_DLL, never WEP_SYSTEM_EXIT
*/
static BOOL16 MODULE_CallWEP( HMODULE16 hModule )
{
BOOL16 ret;
FARPROC16 WEP = GetProcAddress16( hModule, "WEP" );
if (!WEP) return FALSE;
__TRY
{
WORD args[1];
DWORD dwRet;
args[0] = WEP_FREE_DLL;
WOWCallback16Ex( (DWORD)WEP, WCB16_PASCAL, sizeof(args), args, &dwRet );
ret = LOWORD(dwRet);
}
__EXCEPT(page_fault)
{
WARN("Page fault\n");
ret = 0;
}
__ENDTRY
return ret;
}
/**********************************************************************
* NE_FreeModule
*
* Implementation of FreeModule16().
*/
static BOOL16 NE_FreeModule( HMODULE16 hModule, BOOL call_wep )
{
HMODULE16 *hPrevModule;
NE_MODULE *pModule;
HMODULE16 *pModRef;
int i;
if (!(pModule = NE_GetPtr( hModule ))) return FALSE;
hModule = pModule->self;
TRACE("%04x count %d\n", hModule, pModule->count );
if (((INT16)(--pModule->count)) > 0 ) return TRUE;
else pModule->count = 0;
if (pModule->flags & NE_FFLAGS_BUILTIN)
return FALSE; /* Can't free built-in module */
if (call_wep && !(pModule->flags & NE_FFLAGS_WIN32))
{
/* Free the objects owned by the DLL module */
NE_CallUserSignalProc( hModule, USIG16_DLL_UNLOAD );
if (pModule->flags & NE_FFLAGS_LIBMODULE)
MODULE_CallWEP( hModule );
else
call_wep = FALSE; /* We are freeing a task -> no more WEPs */
}
/* Clear magic number just in case */
pModule->magic = pModule->self = 0;
/* Remove it from the linked list */
hPrevModule = &hFirstModule;
while (*hPrevModule && (*hPrevModule != hModule))
{
hPrevModule = &(NE_GetPtr( *hPrevModule ))->next;
}
if (*hPrevModule) *hPrevModule = pModule->next;
/* Free the referenced modules */
pModRef = (HMODULE16*)NE_MODULE_TABLE( pModule );
for (i = 0; i < pModule->modref_count; i++, pModRef++)
{
NE_FreeModule( *pModRef, call_wep );
}
/* Free the module storage */
GlobalFreeAll16( hModule );
/* Remove module from cache */
if (pCachedModule == pModule) pCachedModule = NULL;
return TRUE;
}
/**********************************************************************
* FreeModule (KERNEL.46)
*/
BOOL16 WINAPI FreeModule16( HMODULE16 hModule )
{
return NE_FreeModule( hModule, TRUE );
}
/***********************************************************************
* FreeLibrary (KERNEL.96)
* FreeLibrary16 (KERNEL32.36)
*/
void WINAPI FreeLibrary16( HINSTANCE16 handle )
{
TRACE("%04x\n", handle );
FreeModule16( handle );
}
/**********************************************************************
* GetModuleName (KERNEL.27)
*/
BOOL16 WINAPI GetModuleName16( HINSTANCE16 hinst, LPSTR buf, INT16 count )
{
NE_MODULE *pModule;
BYTE *p;
if (!(pModule = NE_GetPtr( hinst ))) return FALSE;
p = (BYTE *)pModule + pModule->name_table;
if (count > *p) count = *p + 1;
if (count > 0)
{
memcpy( buf, p + 1, count - 1 );
buf[count-1] = '\0';
}
return TRUE;
}
/**********************************************************************
* GetModuleUsage (KERNEL.48)
*/
INT16 WINAPI GetModuleUsage16( HINSTANCE16 hModule )
{
NE_MODULE *pModule = NE_GetPtr( hModule );
return pModule ? pModule->count : 0;
}
/**********************************************************************
* GetExpWinVer (KERNEL.167)
*/
WORD WINAPI GetExpWinVer16( HMODULE16 hModule )
{
NE_MODULE *pModule = NE_GetPtr( hModule );
if ( !pModule ) return 0;
/*
* For built-in modules, fake the expected version the module should
* have according to the Windows version emulated by Wine
*/
if ( !pModule->expected_version )
{
OSVERSIONINFOA versionInfo;
versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
if ( GetVersionExA( &versionInfo ) )
pModule->expected_version =
(versionInfo.dwMajorVersion & 0xff) << 8
| (versionInfo.dwMinorVersion & 0xff);
}
return pModule->expected_version;
}
/***********************************************************************
* 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;
}
/**********************************************************************
* GetModuleHandle (KERNEL.47)
*
* Find a module from a module name.
*
* NOTE: The current implementation works the same way the Windows 95 one
* does. Do not try to 'fix' it, fix the callers.
* + It does not do ANY extension handling (except that strange .EXE bit)!
* + It does not care about paths, just about basenames. (same as Windows)
*
* RETURNS
* LOWORD:
* the win16 module handle if found
* 0 if not
* HIWORD (undocumented, see "Undocumented Windows", chapter 5):
* Always hFirstModule
*/
DWORD WINAPI WIN16_GetModuleHandle( SEGPTR name )
{
if (HIWORD(name) == 0)
return MAKELONG(GetExePtr( (HINSTANCE16)name), hFirstModule );
return MAKELONG(GetModuleHandle16( MapSL(name)), hFirstModule );
}
/**********************************************************************
* NE_GetModuleByFilename
*/
static HMODULE16 NE_GetModuleByFilename( LPCSTR name )
{
HMODULE16 hModule;
LPSTR s, p;
BYTE len, *name_table;
char tmpstr[MAX_PATH];
NE_MODULE *pModule;
lstrcpynA(tmpstr, name, sizeof(tmpstr));
/* If the base filename of 'name' matches the base filename of the module
* filename of some module (case-insensitive compare):
* Return its handle.
*/
/* basename: search backwards in passed name to \ / or : */
s = tmpstr + strlen(tmpstr);
while (s > tmpstr)
{
if (s[-1]=='/' || s[-1]=='\\' || s[-1]==':')
break;
s--;
}
/* search this in loaded filename list */
for (hModule = hFirstModule; hModule ; hModule = pModule->next)
{
char *loadedfn;
OFSTRUCT *ofs;
pModule = NE_GetPtr( hModule );
if (!pModule) break;
if (!pModule->fileinfo) continue;
if (pModule->flags & NE_FFLAGS_WIN32) continue;
ofs = (OFSTRUCT*)((BYTE *)pModule + pModule->fileinfo);
loadedfn = ((char*)ofs->szPathName) + strlen(ofs->szPathName);
/* basename: search backwards in pathname to \ / or : */
while (loadedfn > (char*)ofs->szPathName)
{
if (loadedfn[-1]=='/' || loadedfn[-1]=='\\' || loadedfn[-1]==':')
break;
loadedfn--;
}
/* case insensitive compare ... */
if (!FILE_strcasecmp(loadedfn, s))
return hModule;
}
/* If basename (without ext) matches the module name of a module:
* Return its handle.
*/
if ( (p = strrchr( s, '.' )) != NULL ) *p = '\0';
len = strlen(s);
for (hModule = hFirstModule; hModule ; hModule = pModule->next)
{
pModule = NE_GetPtr( hModule );
if (!pModule) break;
if (pModule->flags & NE_FFLAGS_WIN32) continue;
name_table = (BYTE *)pModule + pModule->name_table;
if ((*name_table == len) && !FILE_strncasecmp(s, name_table+1, len))
return hModule;
}
return 0;
}
/***********************************************************************
* GetProcAddress16 (KERNEL32.37)
* Get procaddress in 16bit module from win32... (kernel32 undoc. ordinal func)
*/
FARPROC16 WINAPI WIN32_GetProcAddress16( HMODULE hModule, LPCSTR name )
{
if (!hModule) return 0;
if (HIWORD(hModule))
{
WARN("hModule is Win32 handle (%p)\n", hModule );
return 0;
}
return GetProcAddress16( LOWORD(hModule), name );
}
/**********************************************************************
* ModuleFirst (TOOLHELP.59)
*/
BOOL16 WINAPI ModuleFirst16( MODULEENTRY *lpme )
{
lpme->wNext = hFirstModule;
return ModuleNext16( lpme );
}
/**********************************************************************
* ModuleNext (TOOLHELP.60)
*/
BOOL16 WINAPI ModuleNext16( MODULEENTRY *lpme )
{
NE_MODULE *pModule;
char *name;
if (!lpme->wNext) return FALSE;
if (!(pModule = NE_GetPtr( lpme->wNext ))) return FALSE;
name = (char *)pModule + pModule->name_table;
memcpy( lpme->szModule, name + 1, min(*name, MAX_MODULE_NAME) );
lpme->szModule[min(*name, MAX_MODULE_NAME)] = '\0';
lpme->hModule = lpme->wNext;
lpme->wcUsage = pModule->count;
lstrcpynA( lpme->szExePath, NE_MODULE_NAME(pModule), sizeof(lpme->szExePath) );
lpme->wNext = pModule->next;
return TRUE;
}
/**********************************************************************
* ModuleFindName (TOOLHELP.61)
*/
BOOL16 WINAPI ModuleFindName16( MODULEENTRY *lpme, LPCSTR name )
{
lpme->wNext = GetModuleHandle16( name );
return ModuleNext16( lpme );
}
/**********************************************************************
* ModuleFindHandle (TOOLHELP.62)
*/
BOOL16 WINAPI ModuleFindHandle16( MODULEENTRY *lpme, HMODULE16 hModule )
{
hModule = GetExePtr( hModule );
lpme->wNext = hModule;
return ModuleNext16( lpme );
}
/***************************************************************************
* IsRomModule (KERNEL.323)
*/
BOOL16 WINAPI IsRomModule16( HMODULE16 unused )
{
return FALSE;
}
/***************************************************************************
* IsRomFile (KERNEL.326)
*/
BOOL16 WINAPI IsRomFile16( HFILE16 unused )
{
return FALSE;
}
/***********************************************************************
* create_dummy_module
*
* Create a dummy NE module for Win32 or Winelib.
*/
static HMODULE16 create_dummy_module( HMODULE module32 )
{
HMODULE16 hModule;
NE_MODULE *pModule;
SEGTABLEENTRY *pSegment;
char *pStr,*s;
unsigned int len;
const char* basename;
OFSTRUCT *ofs;
int of_size, size;
char filename[MAX_PATH];
IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module32 );
if (!nt) return (HMODULE16)11; /* invalid exe */
/* Extract base filename */
GetModuleFileNameA( module32, filename, sizeof(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 = NE_FFLAGS_WIN32;
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 */
pModule->expected_version = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
(nt->OptionalHeader.MinorSubsystemVersion & 0xff);
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 );
LoadLibraryA( filename ); /* increment the ref count of the 32-bit module */
return hModule;
}
/***********************************************************************
* 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);
}
/***************************************************************************
* MapHModuleLS (KERNEL32.@)
*/
HMODULE16 WINAPI MapHModuleLS(HMODULE hmod)
{
HMODULE16 ret;
NE_MODULE *pModule;
if (!hmod)
return TASK_GetCurrent()->hInstance;
if (!HIWORD(hmod))
return LOWORD(hmod); /* we already have a 16 bit module handle */
pModule = (NE_MODULE*)GlobalLock16(hFirstModule);
while (pModule) {
if (pModule->module32 == hmod)
return pModule->self;
pModule = (NE_MODULE*)GlobalLock16(pModule->next);
}
if ((ret = create_dummy_module( hmod )) < 32)
{
SetLastError(ret);
ret = 0;
}
return ret;
}
/***************************************************************************
* MapHModuleSL (KERNEL32.@)
*/
HMODULE WINAPI MapHModuleSL(HMODULE16 hmod)
{
NE_MODULE *pModule;
if (!hmod) {
TDB *pTask = TASK_GetCurrent();
hmod = pTask->hModule;
}
pModule = (NE_MODULE*)GlobalLock16(hmod);
if ((pModule->magic!=IMAGE_OS2_SIGNATURE) || !(pModule->flags & NE_FFLAGS_WIN32))
return 0;
return pModule->module32;
}
/***************************************************************************
* MapHInstLS (KERNEL32.@)
* MapHInstLS (KERNEL.472)
*/
void WINAPI MapHInstLS( CONTEXT86 *context )
{
context->Eax = MapHModuleLS( (HMODULE)context->Eax );
}
/***************************************************************************
* MapHInstSL (KERNEL32.@)
* MapHInstSL (KERNEL.473)
*/
void WINAPI MapHInstSL( CONTEXT86 *context )
{
context->Eax = (DWORD)MapHModuleSL( context->Eax );
}
/***************************************************************************
* MapHInstLS_PN (KERNEL32.@)
*/
void WINAPI MapHInstLS_PN( CONTEXT86 *context )
{
if (context->Eax) context->Eax = MapHModuleLS( (HMODULE)context->Eax );
}
/***************************************************************************
* MapHInstSL_PN (KERNEL32.@)
*/
void WINAPI MapHInstSL_PN( CONTEXT86 *context )
{
if (context->Eax) context->Eax = (DWORD)MapHModuleSL( context->Eax );
}