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Sweden-Number/dlls/kernel/ne_module.c

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/*
* 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 <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <ctype.h>
#include "windef.h"
#include "wine/winbase16.h"
#include "wownt32.h"
#include "winternl.h"
#include "toolhelp.h"
#include "excpt.h"
#include "kernel_private.h"
#include "kernel16_private.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)
struct builtin_dll
{
const IMAGE_DOS_HEADER *header; /* module headers */
const char *file_name; /* module file name */
};
/* Table of all built-in DLLs */
#define MAX_DLLS 50
static struct builtin_dll builtin_dlls[MAX_DLLS];
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;
}
/* patch all the flat cs references of the code segment if necessary */
inline static void patch_code_segment( NE_MODULE *pModule )
{
#ifdef __i386__
int i;
SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule );
for (i = 0; i < pModule->ne_cseg; i++, pSeg++)
{
if (!(pSeg->flags & NE_SEGFLAGS_DATA)) /* found the code segment */
{
CALLFROM16 *call = GlobalLock16( pSeg->hSeg );
if (call->flatcs == wine_get_cs()) return; /* nothing to patch */
while (call->pushl == 0x68)
{
call->flatcs = wine_get_cs();
call++;
}
}
}
#endif
}
/***********************************************************************
* NE_strcasecmp
*
* locale-independent case conversion for module lookups
*/
static int NE_strcasecmp( const char *str1, const char *str2 )
{
int ret = 0;
for ( ; ; str1++, str2++)
if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
return ret;
}
/***********************************************************************
* NE_strncasecmp
*
* locale-independent case conversion for module lookups
*/
static int NE_strncasecmp( const char *str1, const char *str2, int len )
{
int ret = 0;
for ( ; len > 0; len--, str1++, str2++)
if ((ret = RtlUpperChar(*str1) - RtlUpperChar(*str2)) || !*str1) break;
return ret;
}
/***********************************************************************
* find_dll_descr
*
* Find a descriptor in the list
*/
static const IMAGE_DOS_HEADER *find_dll_descr( const char *dllname, const char **file_name )
{
int i;
const IMAGE_DOS_HEADER *mz_header;
const IMAGE_OS2_HEADER *ne_header;
BYTE *name_table;
for (i = 0; i < MAX_DLLS; i++)
{
mz_header = builtin_dlls[i].header;
if (mz_header)
{
ne_header = (const IMAGE_OS2_HEADER *)((const char *)mz_header + mz_header->e_lfanew);
name_table = (BYTE *)ne_header + ne_header->ne_restab;
/* check the dll file name */
if (!NE_strcasecmp( builtin_dlls[i].file_name, dllname ) ||
/* check the dll module name (without extension) */
(!NE_strncasecmp( dllname, name_table+1, *name_table ) &&
!strcmp( dllname + *name_table, ".dll" )))
{
*file_name = builtin_dlls[i].file_name;
return builtin_dlls[i].header;
}
}
}
return NULL;
}
/***********************************************************************
* __wine_dll_register_16 (KERNEL32.@)
*
* Register a built-in DLL descriptor.
*/
void __wine_dll_register_16( const IMAGE_DOS_HEADER *header, const char *file_name )
{
int i;
for (i = 0; i < MAX_DLLS; i++)
{
if (builtin_dlls[i].header) continue;
builtin_dlls[i].header = header;
builtin_dlls[i].file_name = file_name;
break;
}
assert( i < MAX_DLLS );
}
/***********************************************************************
* __wine_dll_unregister_16 (KERNEL32.@)
*
* Unregister a built-in DLL descriptor.
*/
void __wine_dll_unregister_16( const IMAGE_DOS_HEADER *header )
{
int i;
for (i = 0; i < MAX_DLLS; i++)
{
if (builtin_dlls[i].header != header) continue;
builtin_dlls[i].header = NULL;
break;
}
}
/***********************************************************************
* NE_GetPtr
*/
NE_MODULE *NE_GetPtr( HMODULE16 hModule )
{
return (NE_MODULE *)GlobalLock16( GetExePtr(hModule) );
}
/**********************************************************************
* NE_RegisterModule
*/
static void NE_RegisterModule( NE_MODULE *pModule )
{
pModule->next = hFirstModule;
hFirstModule = pModule->self;
}
/***********************************************************************
* 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->ne_flags,
pModule->ne_heap, pModule->ne_stack );
DPRINTF( "cs:ip=%04x:%04x ss:sp=%04x:%04x ds=%04x nb seg=%d modrefs=%d\n",
SELECTOROF(pModule->ne_csip), OFFSETOF(pModule->ne_csip),
SELECTOROF(pModule->ne_sssp), OFFSETOF(pModule->ne_sssp),
pModule->ne_autodata, pModule->ne_cseg, pModule->ne_cmod );
DPRINTF( "os_flags=%d swap_area=%d version=%04x\n",
pModule->ne_exetyp, pModule->ne_swaparea, pModule->ne_expver );
if (pModule->ne_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->ne_cseg; 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->ne_rsrctab)
{
pword = (WORD *)((BYTE *)pModule + pModule->ne_rsrctab);
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->ne_restab;
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->ne_modtab)
{
pword = (WORD *)((BYTE *)pModule + pModule->ne_modtab);
for (i = 0; i < pModule->ne_cmod; 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->ne_enttab);
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->ne_flags,
*((char *)pModule + pModule->ne_restab),
(char *)pModule + pModule->ne_restab + 1 );
hModule = pModule->next;
}
}
/***********************************************************************
* NE_InitResourceHandler
*
* Fill in 'resloader' fields in the resource table.
*/
static void NE_InitResourceHandler( HMODULE16 hModule )
{
static FARPROC16 proc;
NE_TYPEINFO *pTypeInfo;
NE_MODULE *pModule;
if (!(pModule = NE_GetPtr( hModule )) || !pModule->ne_rsrctab) return;
TRACE("InitResourceHandler[%04x]\n", hModule );
if (!proc) proc = GetProcAddress16( GetModuleHandle16("KERNEL"), "DefResourceHandler" );
pTypeInfo = (NE_TYPEINFO *)((char *)pModule + pModule->ne_rsrctab + 2);
while(pTypeInfo->type_id)
{
memcpy_unaligned( &pTypeInfo->resloader, &proc, sizeof(FARPROC16) );
pTypeInfo = (NE_TYPEINFO *)((char*)(pTypeInfo + 1) + pTypeInfo->count * sizeof(NE_NAMEINFO));
}
}
/***********************************************************************
* NE_GetOrdinal
*
* Lookup the ordinal for a given name.
*/
WORD NE_GetOrdinal( HMODULE16 hModule, const char *name )
{
unsigned char buffer[256], *cpnt;
BYTE len;
NE_MODULE *pModule;
if (!(pModule = NE_GetPtr( hModule ))) return 0;
if (pModule->ne_flags & NE_FFLAGS_WIN32) return 0;
TRACE("(%04x,'%s')\n", hModule, name );
/* First handle names of the form '#xxxx' */
if (name[0] == '#') return atoi( name + 1 );
/* Now copy and uppercase the string */
strcpy( buffer, name );
for (cpnt = buffer; *cpnt; cpnt++) *cpnt = RtlUpperChar(*cpnt);
len = cpnt - buffer;
/* First search the resident names */
cpnt = (char *)pModule + pModule->ne_restab;
/* Skip the first entry (module name) */
cpnt += *cpnt + 1 + sizeof(WORD);
while (*cpnt)
{
if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
{
WORD ordinal;
memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
TRACE(" Found: ordinal=%d\n", ordinal );
return ordinal;
}
cpnt += *cpnt + 1 + sizeof(WORD);
}
/* Now search the non-resident names table */
if (!pModule->nrname_handle) return 0; /* No non-resident table */
cpnt = (char *)GlobalLock16( pModule->nrname_handle );
/* Skip the first entry (module description string) */
cpnt += *cpnt + 1 + sizeof(WORD);
while (*cpnt)
{
if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
{
WORD ordinal;
memcpy( &ordinal, cpnt + *cpnt + 1, sizeof(ordinal) );
TRACE(" Found: ordinal=%d\n", ordinal );
return ordinal;
}
cpnt += *cpnt + 1 + sizeof(WORD);
}
return 0;
}
/***********************************************************************
* NE_GetEntryPoint
*/
FARPROC16 WINAPI NE_GetEntryPoint( HMODULE16 hModule, WORD ordinal )
{
return NE_GetEntryPointEx( hModule, ordinal, TRUE );
}
/***********************************************************************
* NE_GetEntryPointEx
*/
FARPROC16 NE_GetEntryPointEx( HMODULE16 hModule, WORD ordinal, BOOL16 snoop )
{
NE_MODULE *pModule;
WORD sel, offset, i;
ET_ENTRY *entry;
ET_BUNDLE *bundle;
if (!(pModule = NE_GetPtr( hModule ))) return 0;
assert( !(pModule->ne_flags & NE_FFLAGS_WIN32) );
bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
while ((ordinal < bundle->first + 1) || (ordinal > bundle->last))
{
if (!(bundle->next))
return 0;
bundle = (ET_BUNDLE *)((BYTE *)pModule + bundle->next);
}
entry = (ET_ENTRY *)((BYTE *)bundle+6);
for (i=0; i < (ordinal - bundle->first - 1); i++)
entry++;
sel = entry->segnum;
memcpy( &offset, &entry->offs, sizeof(WORD) );
if (sel == 0xfe) sel = 0xffff; /* constant entry */
else sel = GlobalHandleToSel16(NE_SEG_TABLE(pModule)[sel-1].hSeg);
if (sel==0xffff)
return (FARPROC16)MAKESEGPTR( sel, offset );
if (!snoop)
return (FARPROC16)MAKESEGPTR( sel, offset );
else
return (FARPROC16)SNOOP16_GetProcAddress16(hModule,ordinal,(FARPROC16)MAKESEGPTR( sel, offset ));
}
/***********************************************************************
* 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->ne_flags & NE_FFLAGS_WIN32) );
bundle = (ET_BUNDLE *)((BYTE *)pModule + pModule->ne_enttab);
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;
}
/***********************************************************************
* build_bundle_data
*
* Build the entry table bundle data from the on-disk format. Helper for build_module.
*/
static void *build_bundle_data( NE_MODULE *pModule, void *dest, const BYTE *table )
{
ET_BUNDLE *oldbundle, *bundle = dest;
ET_ENTRY *entry;
BYTE nr_entries, type;
memset(bundle, 0, sizeof(ET_BUNDLE)); /* in case no entry table exists */
entry = (ET_ENTRY *)((BYTE *)bundle+6);
while ((nr_entries = *table++))
{
if ((type = *table++))
{
bundle->last += nr_entries;
if (type == 0xff)
{
while (nr_entries--)
{
entry->type = type;
entry->flags = *table++;
table += sizeof(WORD);
entry->segnum = *table++;
entry->offs = *(WORD *)table;
table += sizeof(WORD);
entry++;
}
}
else
{
while (nr_entries--)
{
entry->type = type;
entry->flags = *table++;
entry->segnum = type;
entry->offs = *(WORD *)table;
table += sizeof(WORD);
entry++;
}
}
}
else
{
if (bundle->first == bundle->last)
{
bundle->first += nr_entries;
bundle->last += nr_entries;
}
else
{
oldbundle = bundle;
oldbundle->next = (char *)entry - (char *)pModule;
bundle = (ET_BUNDLE *)entry;
bundle->first = bundle->last = oldbundle->last + nr_entries;
bundle->next = 0;
entry = (ET_ENTRY*)(((BYTE*)entry)+sizeof(ET_BUNDLE));
}
}
}
return entry;
}
/***********************************************************************
* build_module
*
* Build the in-memory module from the on-disk data.
*/
static HMODULE16 build_module( const void *mapping, SIZE_T mapping_size, LPCSTR path )
{
const IMAGE_DOS_HEADER *mz_header = mapping;
const IMAGE_OS2_HEADER *ne_header;
const struct ne_segment_table_entry_s *pSeg;
const void *ptr;
int i;
size_t size;
HMODULE16 hModule;
NE_MODULE *pModule;
BYTE *buffer, *pData, *end;
OFSTRUCT *ofs;
if (mapping_size < sizeof(*mz_header)) return ERROR_BAD_FORMAT;
if (mz_header->e_magic != IMAGE_DOS_SIGNATURE) return ERROR_BAD_FORMAT;
ne_header = (const IMAGE_OS2_HEADER *)((const char *)mapping + mz_header->e_lfanew);
if (mz_header->e_lfanew + sizeof(*ne_header) > mapping_size) return ERROR_BAD_FORMAT;
if (ne_header->ne_magic == IMAGE_NT_SIGNATURE) return 21; /* win32 exe */
if (ne_header->ne_magic == IMAGE_OS2_SIGNATURE_LX)
{
MESSAGE("Sorry, %s is an OS/2 linear executable (LX) file!\n", path);
return 12;
}
if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE) return ERROR_BAD_FORMAT;
/* We now have a valid NE header */
/* check to be able to fall back to loading OS/2 programs as DOS
* FIXME: should this check be reversed in order to be less strict?
* (only fail for OS/2 ne_exetyp 0x01 here?) */
if ((ne_header->ne_exetyp != 0x02 /* Windows */)
&& (ne_header->ne_exetyp != 0x04) /* Windows 386 */)
return ERROR_BAD_FORMAT;
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 ERROR_BAD_FORMAT;
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->ne_flags & NE_FFLAGS_LIBMODULE) && (pModule->ne_stack < 0x1400))
pModule->ne_stack = 0x1400;
pModule->self = hModule;
pModule->mapping = mapping;
pModule->mapping_size = mapping_size;
pData = (BYTE *)(pModule + 1);
/* Clear internal Wine flags in case they are set in the EXE file */
pModule->ne_flags &= ~(NE_FFLAGS_BUILTIN | NE_FFLAGS_WIN32);
/* Get the segment table */
pModule->ne_segtab = pData - (BYTE *)pModule;
if (!(pSeg = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_segtab,
ne_header->ne_cseg * sizeof(struct ne_segment_table_entry_s) )))
goto failed;
for (i = ne_header->ne_cseg; i > 0; i--, pSeg++)
{
memcpy( pData, pSeg, sizeof(*pSeg) );
pData += sizeof(SEGTABLEENTRY);
}
/* Get the resource table */
if (ne_header->ne_rsrctab < ne_header->ne_restab)
{
pModule->ne_rsrctab = pData - (BYTE *)pModule;
if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_rsrctab,
ne_header->ne_restab - ne_header->ne_rsrctab )) goto failed;
pData += ne_header->ne_restab - ne_header->ne_rsrctab;
}
else pModule->ne_rsrctab = 0; /* No resource table */
/* Get the resident names table */
pModule->ne_restab = pData - (BYTE *)pModule;
if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_restab,
ne_header->ne_modtab - ne_header->ne_restab )) goto failed;
pData += ne_header->ne_modtab - ne_header->ne_restab;
/* Get the module references table */
if (ne_header->ne_cmod > 0)
{
pModule->ne_modtab = pData - (BYTE *)pModule;
if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_modtab,
ne_header->ne_cmod * sizeof(WORD) )) goto failed;
pData += ne_header->ne_cmod * sizeof(WORD);
}
else pModule->ne_modtab = 0; /* No module references */
/* Get the imported names table */
pModule->ne_imptab = pData - (BYTE *)pModule;
if (!NE_READ_DATA( pModule, pData, mz_header->e_lfanew + ne_header->ne_imptab,
ne_header->ne_enttab - ne_header->ne_imptab )) goto failed;
pData += ne_header->ne_enttab - ne_header->ne_imptab;
/* Load entry table, convert it to the optimized version used by Windows */
pModule->ne_enttab = pData - (BYTE *)pModule;
if (!(ptr = NE_GET_DATA( pModule, mz_header->e_lfanew + ne_header->ne_enttab,
ne_header->ne_cbenttab ))) goto failed;
end = build_bundle_data( pModule, pData, ptr );
pData += ne_header->ne_cbenttab + sizeof(ET_BUNDLE) +
2 * (ne_header->ne_cbenttab - ne_header->ne_cmovent*6);
if (end > pData)
{
FIXME( "not enough space for entry table for %s\n", debugstr_a(path) );
goto failed;
}
/* Store the filename information */
pModule->fileinfo = pData - (BYTE *)pModule;
ofs = (OFSTRUCT *)pData;
ofs->cBytes = sizeof(OFSTRUCT) - sizeof(ofs->szPathName) + strlen(path);
ofs->fFixedDisk = 1;
strcpy( ofs->szPathName, path );
pData += ofs->cBytes + 1;
assert( (BYTE *)pModule + size <= pData );
/* Get the non-resident names table */
if (ne_header->ne_cbnrestab)
{
pModule->nrname_handle = GlobalAlloc16( 0, ne_header->ne_cbnrestab );
if (!pModule->nrname_handle) goto failed;
FarSetOwner16( pModule->nrname_handle, hModule );
buffer = GlobalLock16( pModule->nrname_handle );
if (!NE_READ_DATA( pModule, buffer, ne_header->ne_nrestab, ne_header->ne_cbnrestab ))
{
GlobalFree16( pModule->nrname_handle );
goto failed;
}
}
else pModule->nrname_handle = 0;
/* Allocate a segment for the implicitly-loaded DLLs */
if (pModule->ne_cmod)
{
pModule->dlls_to_init = GlobalAlloc16( GMEM_ZEROINIT,
(pModule->ne_cmod+1)*sizeof(HMODULE16) );
if (!pModule->dlls_to_init)
{
if (pModule->nrname_handle) GlobalFree16( pModule->nrname_handle );
goto failed;
}
FarSetOwner16( pModule->dlls_to_init, hModule );
}
else pModule->dlls_to_init = 0;
NE_RegisterModule( pModule );
return hModule;
failed:
GlobalFree16( hModule );
return ERROR_BAD_FORMAT;
}
/***********************************************************************
* 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->ne_modtab);
WORD *pDLLs = (WORD *)GlobalLock16( pModule->dlls_to_init );
for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
{
char buffer[260], *p;
BYTE *pstr = (BYTE *)pModule + pModule->ne_imptab + *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->ne_restab),
(char *)pModule + pModule->ne_restab + 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 build_module.
* 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;
HANDLE mapping;
void *ptr;
MEMORY_BASIC_INFORMATION info;
/* Open file */
if ((hFile = OpenFile16( name, &ofs, OF_READ|OF_SHARE_DENY_WRITE )) == HFILE_ERROR16)
return ERROR_FILE_NOT_FOUND;
mapping = CreateFileMappingW( DosFileHandleToWin32Handle(hFile), NULL, PAGE_WRITECOPY, 0, 0, NULL );
_lclose16( hFile );
if (!mapping) return ERROR_BAD_FORMAT;
ptr = MapViewOfFile( mapping, FILE_MAP_COPY, 0, 0, 0 );
CloseHandle( mapping );
if (!ptr) return ERROR_BAD_FORMAT;
VirtualQuery( ptr, &info, sizeof(info) );
hModule = build_module( ptr, info.RegionSize, ofs.szPathName );
if (hModule < 32)
{
UnmapViewOfFile( ptr );
return hModule;
}
SNOOP16_RegisterDLL( hModule, ofs.szPathName );
NE_InitResourceHandler( hModule );
pModule = NE_GetPtr( hModule );
if ( !lib_only && !( pModule->ne_flags & NE_FFLAGS_LIBMODULE ) )
return hModule;
hInstance = NE_DoLoadModule( pModule );
if ( hInstance < 32 )
{
/* cleanup ... */
NE_FreeModule( hModule, 0 );
}
return hInstance;
}
/***********************************************************************
* NE_DoLoadBuiltinModule
*
* Load a built-in Win16 module. Helper function for NE_LoadBuiltinModule.
*/
static HMODULE16 NE_DoLoadBuiltinModule( const IMAGE_DOS_HEADER *mz_header, const char *file_name,
HMODULE owner32 )
{
NE_MODULE *pModule;
HMODULE16 hModule;
HINSTANCE16 hInstance;
OSVERSIONINFOW versionInfo;
const IMAGE_OS2_HEADER *ne_header;
SIZE_T mapping_size = ~0UL; /* assume builtins don't contain invalid offsets... */
ne_header = (const IMAGE_OS2_HEADER *)((const BYTE *)mz_header + mz_header->e_lfanew);
hModule = build_module( mz_header, mapping_size, file_name );
if (hModule < 32) return hModule;
pModule = GlobalLock16( hModule );
pModule->ne_flags |= NE_FFLAGS_BUILTIN;
pModule->owner32 = owner32;
/* fake the expected version the module should have according to the current Windows version */
versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
if (GetVersionExW( &versionInfo ))
pModule->ne_expver = MAKEWORD( versionInfo.dwMinorVersion, versionInfo.dwMajorVersion );
hInstance = NE_DoLoadModule( pModule );
if (hInstance < 32) NE_FreeModule( hModule, 0 );
NE_InitResourceHandler( hModule );
if (pModule->ne_heap)
{
SEGTABLEENTRY *pSeg = NE_SEG_TABLE( pModule ) + pModule->ne_autodata - 1;
unsigned int size = pSeg->minsize + pModule->ne_heap;
if (size > 0xfffe) size = 0xfffe;
LocalInit16( GlobalHandleToSel16(pSeg->hSeg), pSeg->minsize, size );
}
patch_code_segment( pModule );
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;
HMODULE16 hModule;
HMODULE mod32 = 0;
NE_MODULE *pModule;
const IMAGE_DOS_HEADER *descr = NULL;
const char *file_name = NULL;
char dllname[20], owner[20], *p;
const char *basename;
int owner_exists;
/* strip path information */
basename = libname;
if (basename[0] && basename[1] == ':') basename += 2; /* strip drive specification */
if ((p = strrchr( basename, '\\' ))) basename = p + 1;
if ((p = strrchr( basename, '/' ))) basename = p + 1;
if (strlen(basename) < sizeof(dllname)-4)
{
strcpy( dllname, basename );
p = strrchr( dllname, '.' );
if (!p) strcat( dllname, ".dll" );
for (p = dllname; *p; p++) if (*p >= 'A' && *p <= 'Z') *p += 32;
if (wine_dll_get_owner( dllname, owner, sizeof(owner), &owner_exists ) != -1)
{
mod32 = LoadLibraryA( owner );
if (mod32)
{
if (!(descr = find_dll_descr( dllname, &file_name )))
{
FreeLibrary( mod32 );
owner_exists = 0;
}
/* loading the 32-bit library can have the side effect of loading the module */
/* if so, simply incr the ref count and return the module */
if ((hModule = GetModuleHandle16( libname )))
{
TRACE( "module %s already loaded by owner\n", libname );
pModule = NE_GetPtr( hModule );
if (pModule) pModule->count++;
FreeLibrary( mod32 );
return hModule;
}
}
else
{
/* it's probably disabled by the load order config */
WARN( "couldn't load owner %s for 16-bit dll %s\n", owner, dllname );
return ERROR_FILE_NOT_FOUND;
}
}
}
if (descr)
{
TRACE("Trying built-in '%s'\n", libname);
hinst = NE_DoLoadBuiltinModule( descr, file_name, mod32 );
if (hinst > 32) TRACE_(loaddll)("Loaded module %s : builtin\n", debugstr_a(file_name));
}
else
{
TRACE("Trying native dll '%s'\n", libname);
hinst = NE_LoadModule(libname, lib_only);
if (hinst > 32) TRACE_(loaddll)("Loaded module %s : native\n", debugstr_a(libname));
if (hinst == ERROR_FILE_NOT_FOUND && owner_exists) hinst = 21; /* win32 module */
}
if (hinst > 32 && !implicit)
{
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 ERROR_INVALID_HANDLE;
}
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 ERROR_INVALID_HANDLE;
}
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->ne_flags & NE_FFLAGS_LIBMODULE)
{
NE_InitializeDLLs(hModule);
NE_DllProcessAttach(hModule);
}
}
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 ERROR_BAD_FORMAT;
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 ERROR_BAD_FORMAT;
}
/* If library module, we just retrieve the instance handle */
if ( ( pModule->ne_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->ne_autodata )
if ( NE_CreateSegment( pModule, pModule->ne_autodata ) )
NE_LoadSegment( pModule, pModule->ne_autodata );
hInstance = NE_GetInstance( pModule );
TRACE("created second instance %04x[%d] of instance %04x.\n", hInstance, pModule->ne_autodata, hPrevInstance);
}
else
{
/* Load first instance of NE module */
pModule->ne_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 = OFFSETOF(pModule->ne_sssp)))
sp = pSegTable[SELECTOROF(pModule->ne_sssp)-1].minsize + pModule->ne_stack;
sp &= ~1;
sp -= sizeof(STACK16FRAME);
NtCurrentTeb()->WOW32Reserved = (void *)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[SELECTOROF(pModule->ne_csip) - 1].hSeg);
context.SegDs = GlobalHandleToSel16(pTask->hInstance);
context.SegEs = pTask->hPDB;
context.SegFs = wine_get_fs();
context.SegGs = wine_get_gs();
context.Eip = OFFSETOF(pModule->ne_csip);
context.Ebx = pModule->ne_stack;
context.Ecx = pModule->ne_heap;
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(NtCurrentTeb()->WOW32Reserved),
OFFSETOF(NtCurrentTeb()->WOW32Reserved) );
WOWCallback16Ex( 0, WCB16_REGS, 0, NULL, (DWORD *)&context );
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 (call_wep && !(pModule->ne_flags & NE_FFLAGS_WIN32))
{
/* Free the objects owned by the DLL module */
NE_CallUserSignalProc( hModule, USIG16_DLL_UNLOAD );
if (pModule->ne_flags & NE_FFLAGS_LIBMODULE)
MODULE_CallWEP( hModule );
else
call_wep = FALSE; /* We are freeing a task -> no more WEPs */
}
TRACE_(loaddll)("Unloaded module %s : %s\n", debugstr_a(NE_MODULE_NAME(pModule)),
(pModule->ne_flags & NE_FFLAGS_BUILTIN) ? "builtin" : "native");
/* Clear magic number just in case */
pModule->ne_magic = pModule->self = 0;
if (pModule->owner32) FreeLibrary( pModule->owner32 );
else if (pModule->mapping) UnmapViewOfFile( (void *)pModule->mapping );
/* 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*)((char *)pModule + pModule->ne_modtab);
for (i = 0; i < pModule->ne_cmod; i++, pModRef++)
{
NE_FreeModule( *pModRef, call_wep );
}
/* Free the module storage */
GlobalFreeAll16( hModule );
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 );
}
/***********************************************************************
* GetModuleHandle16 (KERNEL32.@)
*/
HMODULE16 WINAPI GetModuleHandle16( LPCSTR name )
{
HMODULE16 hModule = hFirstModule;
LPSTR s;
BYTE len, *name_table;
char tmpstr[MAX_PATH];
NE_MODULE *pModule;
TRACE("(%s)\n", name);
if (!HIWORD(name)) return GetExePtr(LOWORD(name));
len = strlen(name);
if (!len) return 0;
lstrcpynA(tmpstr, name, sizeof(tmpstr));
/* If 'name' matches exactly the module name of a module:
* Return its handle.
*/
for (hModule = hFirstModule; hModule ; hModule = pModule->next)
{
pModule = NE_GetPtr( hModule );
if (!pModule) break;
if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
name_table = (BYTE *)pModule + pModule->ne_restab;
if ((*name_table == len) && !strncmp(name, name_table+1, len))
return hModule;
}
/* If uppercased 'name' matches exactly the module name of a module:
* Return its handle
*/
for (s = tmpstr; *s; s++) *s = RtlUpperChar(*s);
for (hModule = hFirstModule; hModule ; hModule = pModule->next)
{
pModule = NE_GetPtr( hModule );
if (!pModule) break;
if (pModule->ne_flags & NE_FFLAGS_WIN32) continue;
name_table = (BYTE *)pModule + pModule->ne_restab;
/* FIXME: the strncasecmp is WRONG. It should not be case insensitive,
* but case sensitive! (Unfortunately Winword 6 and subdlls have
* lowercased module names, but try to load uppercase DLLs, so this
* 'i' compare is just a quickfix until the loader handles that
* correctly. -MM 990705
*/
if ((*name_table == len) && !NE_strncasecmp(tmpstr, name_table+1, len))
return hModule;
}
/* 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->ne_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 (!NE_strcasecmp(loadedfn, s))
return hModule;
}
return 0;
}
/**********************************************************************
* 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->ne_restab;
if (count > *p) count = *p + 1;
if (count > 0)
{
memcpy( buf, p + 1, count - 1 );
buf[count-1] = '\0';
}
return TRUE;
}
/**********************************************************************
* GetModuleFileName (KERNEL.49)
*
* Comment: see GetModuleFileNameA
*
* Even if invoked by second instance of a program,
* it still returns path of first one.
*/
INT16 WINAPI GetModuleFileName16( HINSTANCE16 hModule, LPSTR lpFileName,
INT16 nSize )
{
NE_MODULE *pModule;
/* Win95 does not query hModule if set to 0 !
* Is this wrong or maybe Win3.1 only ? */
if (!hModule) hModule = GetCurrentTask();
if (!(pModule = NE_GetPtr( hModule ))) return 0;
lstrcpynA( lpFileName, NE_MODULE_NAME(pModule), nSize );
if (pModule->ne_expver >= 0x400)
GetLongPathNameA(NE_MODULE_NAME(pModule), lpFileName, nSize);
TRACE("%04x -> '%s'\n", hModule, lpFileName );
return strlen(lpFileName);
}
/**********************************************************************
* 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;
return pModule->ne_expver;
}
/***********************************************************************
* 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 || ret == ERROR_BAD_FORMAT) /* 32-bit module or unknown executable*/
{
DWORD count;
ReleaseThunkLock( &count );
ret = LOWORD( WinExec( lpCmdLine, nCmdShow ) );
RestoreThunkLock( count );
}
return ret;
}
/***********************************************************************
* 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;
}
/***************************************************************************
* HasGPHandler (KERNEL.338)
*/
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;
}
/**********************************************************************
* 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->ne_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 (!NE_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->ne_flags & NE_FFLAGS_WIN32) continue;
name_table = (BYTE *)pModule + pModule->ne_restab;
if ((*name_table == len) && !NE_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->ne_restab;
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 ERROR_BAD_FORMAT;
/* Extract base filename */
len = GetModuleFileNameA( module32, filename, sizeof(filename) );
if (!len || len >= sizeof(filename)) return ERROR_BAD_FORMAT;
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 ERROR_BAD_FORMAT;
FarSetOwner16( hModule, hModule );
pModule = (NE_MODULE *)GlobalLock16( hModule );
/* Set all used entries */
pModule->ne_magic = IMAGE_OS2_SIGNATURE;
pModule->count = 1;
pModule->next = 0;
pModule->ne_flags = NE_FFLAGS_WIN32;
pModule->ne_autodata = 0;
pModule->ne_sssp = MAKESEGPTR( 0, 1 );
pModule->ne_csip = MAKESEGPTR( 0, 2 );
pModule->ne_heap = 0;
pModule->ne_stack = 0;
pModule->ne_cseg = 2;
pModule->ne_cmod = 0;
pModule->ne_cbnrestab = 0;
pModule->fileinfo = sizeof(NE_MODULE);
pModule->ne_exetyp = NE_OSFLAGS_WINDOWS;
pModule->self = hModule;
pModule->module32 = module32;
/* Set version and flags */
pModule->ne_expver = ((nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 ) |
(nt->OptionalHeader.MinorSubsystemVersion & 0xff);
if (nt->FileHeader.Characteristics & IMAGE_FILE_DLL)
pModule->ne_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->ne_segtab = (char *)pSegment - (char *)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->ne_restab = pStr - (char *)pModule;
assert(len<256);
*pStr = len;
lstrcpynA( pStr+1, basename, len+1 );
pStr += len+2;
/* All tables zero terminated */
pModule->ne_rsrctab = pModule->ne_imptab = pModule->ne_enttab = (char *)pStr - (char *)pModule;
NE_RegisterModule( pModule );
pModule->owner32 = 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);
}
/***********************************************************************
* 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;
}
/***************************************************************************
* 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->ne_magic != IMAGE_OS2_SIGNATURE) || !(pModule->ne_flags & NE_FFLAGS_WIN32))
return 0;
return pModule->module32;
}
/***************************************************************************
* MapHInstLS (KERNEL32.@)
* MapHInstLS (KERNEL.472)
*/
void WINAPI __regs_MapHInstLS( CONTEXT86 *context )
{
context->Eax = MapHModuleLS( (HMODULE)context->Eax );
}
#ifdef DEFINE_REGS_ENTRYPOINT
DEFINE_REGS_ENTRYPOINT( MapHInstLS, 0, 0 );
#endif
/***************************************************************************
* MapHInstSL (KERNEL32.@)
* MapHInstSL (KERNEL.473)
*/
void WINAPI __regs_MapHInstSL( CONTEXT86 *context )
{
context->Eax = (DWORD)MapHModuleSL( context->Eax );
}
#ifdef DEFINE_REGS_ENTRYPOINT
DEFINE_REGS_ENTRYPOINT( MapHInstSL, 0, 0 );
#endif
/***************************************************************************
* MapHInstLS_PN (KERNEL32.@)
*/
void WINAPI __regs_MapHInstLS_PN( CONTEXT86 *context )
{
if (context->Eax) context->Eax = MapHModuleLS( (HMODULE)context->Eax );
}
#ifdef DEFINE_REGS_ENTRYPOINT
DEFINE_REGS_ENTRYPOINT( MapHInstLS_PN, 0, 0 );
#endif
/***************************************************************************
* MapHInstSL_PN (KERNEL32.@)
*/
void WINAPI __regs_MapHInstSL_PN( CONTEXT86 *context )
{
if (context->Eax) context->Eax = (DWORD)MapHModuleSL( context->Eax );
}
#ifdef DEFINE_REGS_ENTRYPOINT
DEFINE_REGS_ENTRYPOINT( MapHInstSL_PN, 0, 0 );
#endif
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