Sweden-Number/loader/module.c

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Release 950430 Sat Apr 29 20:42:01 1995 Alexandre Julliard (julliard@sunsite.unc.edu) * [controls/static.c] Fixed painting of SS_*FRAME controls. * [if1632/callback.c] Pass the window instance as DS to the 16-bit window procedure. Rewrote Catch() and Throw() to make them work with multiple tasks. * [loader/main.c] New function MAIN_Init() to perform initializations before the first task is started instead of doing them in InitApp(). Temporary hack to command-line parsing to load one program per command-line argument, to make testing task-switching easier. * [loader/*.c] Reimplemented modules to use a Windows-compatible layout and to allow multiple tasks and multiple module instances. Not really finished yet. * [loader/task.c] [misc/exec.c] Reimplemented tasks to use a common address space, and implemented preliminary task-switching capabilities. * [memory/global.c] Fixed bug in GlobalNext(). * [misc/main.c] Updated the list of contributors. Let me know if I forgot someone. * [miscemu/int21.c] Use one DTA per task instead of a global one. * [objects/bitblt.c] Fixed bug in BitBlt() that could cause BadMatch errors. * [tools/build.c] Added new function type 'stub', that makes possible to export an unimplemented function by name as well as by ordinal. This will avoid loading errors for unimplemented functions. Generate an in-memory module layout for built-in DLLs so that the same code can be used for built-in and loaded modules. Changed relay code to make it unnecessary to save the value of the BP register. * [windows/message.c] Implemented multiple message queues and preliminary task-switching capabilities. Inter-task SendMessage() calls are not implemented yet and will probably cause crashes if used. * [windows/property.c] Reimplemented properties and allocate them on the USER heap. * [windows/win.c] Fixed bug in SetWindowWord(). Reimplemented EnumWindows() and EnumTaskWindows(). Tue Apr 18 09:48:38 1995 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de> * [misc/main.c] GetSystemParametersInfo(): Additional action SPI_GETICONTITLEFONT. * [loader/resource.c] Removed the check for NE_SEGFLAGS_EXECUTEONLY, since it broke control.exe. Fixed icon loading. * [objects/font.c] [include/windows.h] Fixed a bug in InitFontsList() and worked on the EnumFonts() functions to make them comprehensible. * [controls/button.c] Fixed my previous patch to handle LBUTTONUP messages. Fri Apr 14 11:41:28 1995 Cameron Heide (heide@ee.ualberta.ca) * [misc/network.c, misc/dos_fs.c] Implemented WNetGetConnection. All that is currently supported are drives, for which the remote name is simply the redirected UNIX directory name. * [miscemu/int2?.c] More drive number validity checking. Wed Apr 12 11:28:37 1995 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de> * [controls/listbox.c] Oops, my previous change to ListBoxDirectory broke the Borland file open dialog. Fixed. Mon Apr 10 23:17:12 1995 Martin von Loewis <loewis@informatik.hu-berlin.de> * [if1632/ole2nls.spec] [misc/ole2nls.c] [misc/Imakefile] New file ole2nls.c. Added stubs for GetUserDefaultLCID, GetSystemDefaultLCID, GetUserDefaultLangID, GetSystemDefaultLangID. Mon Apr 10 10:05:18 1995 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de> * [memory/global.c] [memory/local.c] [include/windows.h] GlobalReAlloc(): If GMEM_MODIFY is set, don't resize the block. LocalReAlloc(): Same for LMEM_MODIFY. * [controls/listbox.c] Fixed a bug in ListBoxDirectory that prevented commdlg from working. Check for errors in some more places. * [if1632/gdi.spec] [if1632/user.spec] 16 bit callback functions should be passed as segptrs. * [include/dlls.h] [loader/ne_image.c] [loader/selector.c] [loader/library.c] Prevent a DLL from being initialized twice (Borlands Resource Workshop used to do this). Provide an additional flag for each w_file that indicates whether it's an EXE or a DLL, for combinations like pbrush.exe/.dll. * [controls/button.c] Handle LBUTTONUP messages even if the button no longer has the capture (for WinHelp). * [include/wintypes.h] FARPROC is now a segptr for the emulator and a function pointer for the library. * [misc/commdlg.c] [misc/commdlg.h] Cleaned the file dialogs up a little. They now work reasonably well, although there are still some problems (e.g. files are initially invisible). * [windows/class.c] [if1632/user.spec] [include/windows.h] GetClassInfo() must take a segptr, as it checks whether the highword is zero. GetClassName() called the wrong atom function. No surprise it didn't find anything. * [misc/lstr.c] AnsiToOem() and OemToAnsi() didn't terminate the strings. Fixed. Removed some warnings. * [if1632/relay.c] [if1632/ddeml.spec] [include/dlls.h] New spec file for the 3.1 DDEML DDL. * [controls/menu.c] Small fix to ChangeMenu - mask out the obsolete flags (MF_APPEND == MF_OWNERDRAW, this led to problems). It also had problems with the MF_BYPOSITION flag. * [windows/message.c] SendMessage(): call the WH_CALLWNDPROC hook function. This is rather ugly, I'm afraid. Windows probably passes a pointer to the 16 bit stack for speed reasons. * [windows/hook.c] [include/windows.h] Set/HookWindowsHook() shouldn't just call their *Ex counterparts, as they have slightly different semantics. MS Hearts now works somewhat, if you disable the new builtin DDEML. The graphics are completely messed up, though.
1995-04-30 12:05:20 +02:00
/*
* Modules
*
* Copyright 1995 Alexandre Julliard
*/
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include "windows.h"
#include "dlls.h"
#include "global.h"
#include "ldt.h"
#include "module.h"
#include "neexe.h"
#include "toolhelp.h"
#include "stddebug.h"
/* #define DEBUG_MODULE */
#include "debug.h"
extern BYTE KERNEL_Module_Start[], KERNEL_Module_End[];
extern struct dll_name_table_entry_s dll_builtin_table[];
static HMODULE hFirstModule = 0;
/***********************************************************************
* MODULE_Init
*
* Create the built-in modules.
*/
BOOL MODULE_Init(void)
{
HMODULE hModule;
NE_MODULE *pModule;
SEGTABLEENTRY *pSegTable;
struct dll_table_s *table;
int i;
/* Create the built-in modules */
for (i = 0; i < N_BUILTINS; i++)
{
if (!dll_builtin_table[i].dll_is_used) continue;
table = dll_builtin_table[i].table;
hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, table->module_start,
table->module_end - table->module_start,
0, FALSE, FALSE, FALSE );
if (!hModule) return FALSE;
FarSetOwner( hModule, hModule );
table->hModule = hModule;
dprintf_module( stddeb, "Built-in %s: hmodule=%04x\n",
dll_builtin_table[i].dll_name, hModule );
/* Allocate the code segment */
pModule = (NE_MODULE *)GlobalLock( hModule );
pSegTable = NE_SEG_TABLE( pModule );
pSegTable->selector = GLOBAL_CreateBlock(GMEM_FIXED, table->code_start,
pSegTable->minsize, hModule,
TRUE, TRUE, FALSE );
if (!pSegTable->selector) return FALSE;
pSegTable++;
/* Allocate the data segment */
pSegTable->selector = GLOBAL_Alloc( GMEM_FIXED, pSegTable->minsize,
hModule, FALSE, FALSE, FALSE );
if (!pSegTable->selector) return FALSE;
memcpy( GlobalLock( pSegTable->selector ), table->data_start,
pSegTable->minsize );
pModule->next = hFirstModule;
hFirstModule = hModule;
}
return TRUE;
}
/***********************************************************************
* MODULE_PrintModule
*/
void MODULE_PrintModule( HMODULE hmodule )
{
int i, ordinal;
SEGTABLEENTRY *pSeg;
BYTE *pstr;
WORD *pword;
NE_MODULE *pModule = (NE_MODULE *)GlobalLock( hmodule );
/* Dump the module info */
printf( "Module %04x:\n", hmodule );
printf( "count=%d flags=%04x heap=%d stack=%d\n",
pModule->count, pModule->flags,
pModule->heap_size, pModule->stack_size );
printf( "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 );
printf( "os_flags=%d swap_area=%d version=%04x\n",
pModule->os_flags, pModule->min_swap_area,
pModule->expected_version );
/* Dump the file info */
printf( "Filename: '%s'\n",
((LOADEDFILEINFO *)((BYTE *)pModule + pModule->fileinfo))->filename );
/* Dump the segment table */
printf( "\nSegment table:\n" );
pSeg = NE_SEG_TABLE( pModule );
for (i = 0; i < pModule->seg_count; i++, pSeg++)
printf( "%02x: pos=%d size=%d flags=%04x minsize=%d sel=%04x\n",
i + 1, pSeg->filepos, pSeg->size, pSeg->flags,
pSeg->minsize, pSeg->selector );
/* Dump the resource table */
printf( "\nResource table:\n" );
if (pModule->res_table)
{
pword = (WORD *)((BYTE *)pModule + pModule->res_table);
printf( "Alignment: %d\n", *pword++ );
while (*pword)
{
struct resource_typeinfo_s *ptr = (struct resource_typeinfo_s *)pword;
struct resource_nameinfo_s *pname = (struct resource_nameinfo_s *)(ptr + 1);
printf( "id=%04x count=%d\n", ptr->type_id, ptr->count );
for (i = 0; i < ptr->count; i++, pname++)
printf( "offset=%d len=%d id=%04x\n",
pname->offset, pname->length, pname->id );
pword = (WORD *)pname;
}
}
else printf( "None\n" );
/* Dump the resident name table */
printf( "\nResident-name table:\n" );
pstr = (char *)pModule + pModule->name_table;
while (*pstr)
{
printf( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
*(WORD *)(pstr + *pstr + 1) );
pstr += *pstr + 1 + sizeof(WORD);
}
/* Dump the module reference table */
printf( "\nModule 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 = (char *)pModule + pModule->import_table + *pword;
printf( "%d: %04x -> '%*.*s'\n",
i, *pword, *name, *name, name + 1 );
}
}
else printf( "None\n" );
/* Dump the entry table */
printf( "\nEntry table:\n" );
pstr = (char *)pModule + pModule->entry_table;
ordinal = 1;
while (*pstr)
{
printf( "Bundle %d-%d: %02x\n", ordinal, ordinal + *pstr - 1, pstr[1]);
if (!pstr[1])
{
ordinal += *pstr;
pstr += 2;
}
else if ((BYTE)pstr[1] == 0xff) /* moveable */
{
struct entry_tab_movable_s *pe = (struct entry_tab_movable_s*)(pstr+2);
for (i = 0; i < *pstr; i++, pe++)
printf( "%d: %02x:%04x (moveable)\n",
ordinal++, pe->seg_number, pe->offset );
pstr = (char *)pe;
}
else /* fixed */
{
struct entry_tab_fixed_s *pe = (struct entry_tab_fixed_s*)(pstr+2);
for (i = 0; i < *pstr; i++, pe++)
printf( "%d: %04x (fixed)\n",
ordinal++, pe->offset[0] + (pe->offset[1] << 8) );
pstr = (char *)pe;
}
}
/* Dump the non-resident names table */
printf( "\nNon-resident names table:\n" );
if (pModule->nrname_handle)
{
pstr = (char *)GlobalLock( pModule->nrname_handle );
while (*pstr)
{
printf( "%*.*s: %d\n", *pstr, *pstr, pstr + 1,
*(WORD *)(pstr + *pstr + 1) );
pstr += *pstr + 1 + sizeof(WORD);
}
}
printf( "\n" );
}
/***********************************************************************
* MODULE_OpenFile
*/
int MODULE_OpenFile( HMODULE hModule )
{
NE_MODULE *pModule;
char *name;
static HMODULE hCachedModule = 0;
static int cachedfd = -1;
hModule = GetExePtr( hModule ); /* In case we were passed an hInstance */
dprintf_module( stddeb, "MODULE_OpenFile(%04x) cache: mod=%04x fd=%d\n",
hModule, hCachedModule, cachedfd );
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return -1;
if (hCachedModule == hModule) return cachedfd;
close( cachedfd );
hCachedModule = hModule;
name = ((LOADEDFILEINFO*)((char*)pModule + pModule->fileinfo))->filename;
cachedfd = open( name /* DOS_GetUnixFileName( name ) */, O_RDONLY );
dprintf_module( stddeb, "MODULE_OpenFile: opened '%s' -> %d\n",
name, cachedfd );
return cachedfd;
}
/***********************************************************************
* MODULE_CreateSegments
*/
BOOL MODULE_CreateSegments( HMODULE hModule )
{
SEGTABLEENTRY *pSegment;
NE_MODULE *pModule;
int i, minsize;
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return FALSE;
pSegment = NE_SEG_TABLE( pModule );
for (i = 1; i <= pModule->seg_count; i++, pSegment++)
{
minsize = pSegment->minsize ? pSegment->minsize : 0x10000;
if (i == pModule->ss) minsize += pModule->stack_size;
if (i == pModule->dgroup)
{
/* FIXME: this is needed because heap growing is not implemented */
pModule->heap_size = 0x10000 - minsize;
minsize = 0x10000;
}
pSegment->selector = GLOBAL_Alloc( GMEM_ZEROINIT | GMEM_FIXED,
minsize, hModule,
!(pSegment->flags & NE_SEGFLAGS_DATA),
FALSE,
FALSE /*pSegment->flags & NE_SEGFLAGS_READONLY*/ );
if (!pSegment->selector) return FALSE;
}
pModule->dgroup_entry = pModule->dgroup ? pModule->seg_table +
(pModule->dgroup - 1) * sizeof(SEGTABLEENTRY) : 0;
return TRUE;
}
/***********************************************************************
* MODULE_LoadExeHeader
*/
HMODULE MODULE_LoadExeHeader( int fd, char *filename )
{
struct mz_header_s mz_header;
struct ne_header_s ne_header;
int size;
HMODULE hModule;
NE_MODULE *pModule;
BYTE *pData;
char *buffer, *fastload = NULL;
int fastload_offset = 0, fastload_length = 0;
/* 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) : \
(lseek( fd, mz_header.ne_offset+(offset), SEEK_SET), \
read( fd, (buffer), (size) ) == (size)))
lseek( fd, 0, SEEK_SET );
if ((read( fd, &mz_header, sizeof(mz_header) ) != sizeof(mz_header)) ||
(mz_header.mz_magic != MZ_SIGNATURE)) return 11; /* invalid exe */
lseek( fd, mz_header.ne_offset, SEEK_SET );
if (read( fd, &ne_header, sizeof(ne_header) ) != sizeof(ne_header))
return 11; /* invalid exe */
if (ne_header.ne_magic == PE_SIGNATURE) return 21; /* win32 exe */
if (ne_header.ne_magic != NE_SIGNATURE) return 11; /* invalid exe */
/* We now have a valid NE header */
size = sizeof(NE_MODULE) +
/* loaded file info */
sizeof(LOADEDFILEINFO) + strlen(filename) +
/* segment table */
ne_header.n_segment_tab * sizeof(SEGTABLEENTRY) +
/* resource table */
ne_header.rname_tab_offset - ne_header.resource_tab_offset +
/* resident names table */
ne_header.moduleref_tab_offset - ne_header.rname_tab_offset +
/* module ref table */
ne_header.n_mod_ref_tab * sizeof(WORD) +
/* imported names table */
ne_header.entry_tab_offset - ne_header.iname_tab_offset +
/* entry table length */
ne_header.entry_tab_length;
hModule = GlobalAlloc( GMEM_MOVEABLE | GMEM_ZEROINIT, size );
if (!hModule) return 11; /* invalid exe */
FarSetOwner( hModule, hModule );
pModule = (NE_MODULE *)GlobalLock( hModule );
memcpy( pModule, &ne_header, sizeof(NE_MODULE) );
pData = (BYTE *)(pModule + 1);
/* Read the fast-load area */
if (ne_header.additional_flags & NE_AFLAGS_FASTLOAD)
{
fastload_offset=ne_header.fastload_offset<<ne_header.align_shift_count;
fastload_length=ne_header.fastload_length<<ne_header.align_shift_count;
dprintf_module( stddeb, "Using fast-load area offset=%x len=%d\n",
fastload_offset, fastload_length );
if ((fastload = (char *)malloc( fastload_length )) != NULL)
{
lseek( fd, mz_header.ne_offset + fastload_offset, SEEK_SET );
if (read( fd, fastload, fastload_length ) != fastload_length)
{
free( fastload );
fastload = NULL;
}
}
}
/* Store the filename information */
pModule->fileinfo = (int)pData - (int)pModule;
((LOADEDFILEINFO*)pData)->length = sizeof(LOADEDFILEINFO)+strlen(filename);
((LOADEDFILEINFO*)pData)->fixed_media = TRUE;
((LOADEDFILEINFO*)pData)->error = 0;
((LOADEDFILEINFO*)pData)->date = 0;
((LOADEDFILEINFO*)pData)->time = 0;
strcpy( ((LOADEDFILEINFO*)pData)->filename, filename );
pData += ((LOADEDFILEINFO*)pData)->length--;
/* Get the segment table */
pModule->seg_table = (int)pData - (int)pModule;
buffer = malloc( ne_header.n_segment_tab * sizeof(struct ne_segment_table_entry_s) );
if (buffer)
{
int i;
struct ne_segment_table_entry_s *pSeg;
if (!READ( ne_header.segment_tab_offset,
ne_header.n_segment_tab * sizeof(struct ne_segment_table_entry_s),
buffer )) return 11; /* invalid exe */
pSeg = (struct ne_segment_table_entry_s *)buffer;
for (i = ne_header.n_segment_tab; i > 0; i--, pSeg++)
{
memcpy( pData, pSeg, sizeof(*pSeg) );
pData += sizeof(SEGTABLEENTRY);
}
free( buffer );
}
else return 11; /* invalid exe */
/* Get the resource table */
if (ne_header.resource_tab_offset < ne_header.rname_tab_offset)
{
pModule->res_table = (int)pData - (int)pModule;
if (!READ(ne_header.resource_tab_offset,
ne_header.rname_tab_offset - ne_header.resource_tab_offset,
pData )) return 11; /* invalid exe */
pData += ne_header.rname_tab_offset - ne_header.resource_tab_offset;
}
else pModule->res_table = 0; /* No resource table */
/* Get the resident names table */
pModule->name_table = (int)pData - (int)pModule;
if (!READ( ne_header.rname_tab_offset,
ne_header.moduleref_tab_offset - ne_header.rname_tab_offset,
pData )) return 11; /* invalid exe */
pData += ne_header.moduleref_tab_offset - ne_header.rname_tab_offset;
/* Get the module references table */
if (ne_header.n_mod_ref_tab > 0)
{
pModule->modref_table = (int)pData - (int)pModule;
if (!READ( ne_header.moduleref_tab_offset,
ne_header.n_mod_ref_tab * sizeof(WORD),
pData )) return 11; /* invalid exe */
pData += ne_header.n_mod_ref_tab * sizeof(WORD);
}
else pModule->modref_table = 0; /* No module references */
/* Get the imported names table */
pModule->import_table = (int)pData - (int)pModule;
if (!READ( ne_header.iname_tab_offset,
ne_header.entry_tab_offset - ne_header.iname_tab_offset,
pData )) return 11; /* invalid exe */
pData += ne_header.entry_tab_offset - ne_header.iname_tab_offset;
/* Get the entry table */
pModule->entry_table = (int)pData - (int)pModule;
if (!READ( ne_header.entry_tab_offset,
ne_header.entry_tab_length,
pData )) return 11; /* invalid exe */
pData += ne_header.entry_tab_length;
/* Get the non-resident names table */
if (ne_header.nrname_tab_length)
{
pModule->nrname_handle = GLOBAL_Alloc( 0, ne_header.nrname_tab_length,
hModule, FALSE, FALSE, FALSE );
if (!pModule->nrname_handle) return 11; /* invalid exe */
buffer = GlobalLock( pModule->nrname_handle );
lseek( fd, ne_header.nrname_tab_offset, SEEK_SET );
if (read( fd, buffer, ne_header.nrname_tab_length )
!= ne_header.nrname_tab_length) return 11; /* invalid exe */
}
else pModule->nrname_handle = 0;
if (debugging_module) MODULE_PrintModule( hModule );
pModule->next = hFirstModule;
hFirstModule = hModule;
return hModule;
}
/***********************************************************************
* MODULE_GetOrdinal
*
* Lookup the ordinal for a given name.
*/
WORD MODULE_GetOrdinal( HMODULE hModule, char *name )
{
char buffer[256], *cpnt;
BYTE len;
NE_MODULE *pModule;
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return 0;
dprintf_module( stddeb, "MODULE_GetOrdinal(%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 );
AnsiUpper( buffer );
len = strlen( buffer );
/* First search the resident names */
cpnt = (char *)pModule + pModule->name_table;
/* Skip the first entry (module name) */
cpnt += *cpnt + 1 + sizeof(WORD);
while (*cpnt)
{
dprintf_module( stddeb, " Checking '%*.*s'\n", *cpnt, *cpnt, cpnt+1 );
if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
{
dprintf_module( stddeb, " Found: ordinal=%d\n",
*(WORD *)(cpnt + *cpnt + 1) );
return *(WORD *)(cpnt + *cpnt + 1);
}
cpnt += *cpnt + 1 + sizeof(WORD);
}
/* Now search the non-resident names table */
if (!pModule->nrname_handle) return 0; /* No non-resident table */
cpnt = (char *)GlobalLock( pModule->nrname_handle );
/* Skip the first entry (module description string) */
cpnt += *cpnt + 1 + sizeof(WORD);
while (*cpnt)
{
dprintf_module( stddeb, " Checking '%*.*s'\n", *cpnt, *cpnt, cpnt+1 );
if (((BYTE)*cpnt == len) && !memcmp( cpnt+1, buffer, len ))
{
dprintf_module( stddeb, " Found: ordinal=%d\n",
*(WORD *)(cpnt + *cpnt + 1) );
return *(WORD *)(cpnt + *cpnt + 1);
}
cpnt += *cpnt + 1 + sizeof(WORD);
}
return 0;
}
/***********************************************************************
* MODULE_GetEntryPoint
*
* Return the entry point for a given ordinal.
*/
DWORD MODULE_GetEntryPoint( HMODULE hModule, WORD ordinal )
{
NE_MODULE *pModule;
WORD curOrdinal = 1;
BYTE *p;
WORD sel, offset;
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return 0;
dprintf_module( stddeb, "MODULE_GetEntryPoint(%04x,%d)\n",
hModule, ordinal );
p = (BYTE *)pModule + pModule->entry_table;
while (*p && (curOrdinal + *p <= ordinal))
{
/* Skipping this bundle */
curOrdinal += *p;
switch(p[1])
{
case 0: p += 2; break; /* unused */
case 0xff: p += 2 + *p * 6; break; /* moveable */
default: p += 2 + *p * 3; break; /* fixed */
}
}
if (!*p)
{
dprintf_module( stddeb, " Not found (last=%d)\n", curOrdinal-1 );
return 0;
}
switch(p[1])
{
case 0: /* unused */
dprintf_module( stddeb, " Found, but entry is unused\n" );
return 0;
case 0xff: /* moveable */
p += 2 + 6 * (ordinal - curOrdinal);
sel = p[3];
offset = *(WORD *)(p + 4);
break;
default: /* fixed */
sel = p[1];
p += 2 + 3 * (ordinal - curOrdinal);
offset = *(WORD *)(p + 1);
break;
}
dprintf_module( stddeb, " Found, logical addr = %04x:%04x\n",
sel, offset );
if (sel == 0xfe) sel = 0xffff; /* constant entry */
else sel = NE_SEG_TABLE(pModule)[sel-1].selector;
return MAKELONG( offset, sel );
}
/***********************************************************************
* MODULE_GetModuleName
*/
LPSTR MODULE_GetModuleName( HMODULE hModule )
{
NE_MODULE *pModule;
BYTE *p, len;
static char buffer[10];
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return NULL;
p = (BYTE *)pModule + pModule->name_table;
len = min( *p, 8 );
memcpy( buffer, p + 1, len );
buffer[len] = '\0';
return buffer;
}
/**********************************************************************
* LoadModule (KERNEL.45)
*/
HINSTANCE MODULE_LoadModule( LPCSTR name, LPVOID paramBlock )
{
}
/**********************************************************************
* GetModuleHandle (KERNEL.47)
*/
HMODULE GetModuleHandle( LPCSTR name )
{
char buffer[16];
BYTE len;
HMODULE hModule;
strncpy( buffer, name, 15 );
buffer[15] = '\0';
len = strlen(buffer);
AnsiUpper( buffer );
hModule = hFirstModule;
while( hModule )
{
NE_MODULE *pModule = (NE_MODULE *)GlobalLock( hModule );
char *pname = (char *)pModule + pModule->name_table;
if (((BYTE)*pname == len) && !memcmp( pname+1, buffer, len )) break;
hModule = pModule->next;
}
dprintf_module( stddeb, "GetModuleHandle('%s'): returning %04x\n",
name, hModule );
return hModule;
}
/**********************************************************************
* GetModuleUsage (KERNEL.48)
*/
int GetModuleUsage( HANDLE hModule )
{
NE_MODULE *pModule;
hModule = GetExePtr( hModule ); /* In case we were passed an hInstance */
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return 0;
dprintf_module( stddeb, "GetModuleUsage(%04x): returning %d\n",
hModule, pModule->count );
return pModule->count;
}
/**********************************************************************
* GetModuleFileName (KERNEL.49)
*/
int GetModuleFileName( HANDLE hModule, LPSTR lpFileName, short nSize )
{
NE_MODULE *pModule;
char *name;
hModule = GetExePtr( hModule ); /* In case we were passed an hInstance */
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return 0;
name = ((LOADEDFILEINFO*)((char*)pModule + pModule->fileinfo))->filename;
strncpy( lpFileName, name, nSize );
lpFileName[nSize-1] = '\0';
return strlen(lpFileName);
}
/**********************************************************************
* ModuleFirst (TOOLHELP.59)
*/
BOOL ModuleFirst( MODULEENTRY *lpme )
{
lpme->wNext = hFirstModule;
return ModuleNext( lpme );
}
/**********************************************************************
* ModuleNext (TOOLHELP.60)
*/
BOOL ModuleNext( MODULEENTRY *lpme )
{
NE_MODULE *pModule;
if (!lpme->wNext) return FALSE;
if (!(pModule = (NE_MODULE *)GlobalLock( lpme->wNext ))) return FALSE;
strncpy( lpme->szModule, (char *)pModule + pModule->name_table,
MAX_MODULE_NAME );
lpme->szModule[MAX_MODULE_NAME] = '\0';
lpme->hModule = lpme->wNext;
lpme->wcUsage = pModule->count;
strncpy( lpme->szExePath,
((LOADEDFILEINFO*)((char*)pModule + pModule->fileinfo))->filename,
MAX_PATH );
lpme->szExePath[MAX_PATH] = '\0';
lpme->wNext = pModule->next;
return TRUE;
}
/**********************************************************************
* ModuleFindName (TOOLHELP.61)
*/
BOOL ModuleFindName( MODULEENTRY *lpme, LPCSTR name )
{
lpme->wNext = GetModuleHandle( name );
return ModuleNext( lpme );
}
/**********************************************************************
* ModuleFindHandle (TOOLHELP.62)
*/
BOOL ModuleFindHandle( MODULEENTRY *lpme, HMODULE hModule )
{
hModule = GetExePtr( hModule ); /* In case we were passed an hInstance */
lpme->wNext = hModule;
return ModuleNext( lpme );
}