niansa-misc/wine
1
0
Fork 0
mirror of synced 2025-03-07 03:53:26 +01:00
Code Issues Projects Releases Packages Wiki Activity
wine/loader/module.c
Alexandre Julliard b7258befe0 Release 950901 
Thu Aug 31 17:19:57 1995  Alexandre Julliard  <julliard@sunsite.unc.edu>

	* [Configure]
	Added compile-time option for IPC.

	* [configure.in]
	Added command-line options for language, IPC and malloc
	debugging.

	* [controls/menu.c]
	WM_MENUSELECT was sometimes sent to the wrong window.

	* [debugger/break.c]
	For the 'next' command, only step over instruction that require
	it. This allows 'next' to do the right thing with jmp and ret
	instructions.

	* [ipc/*.c] [memory/atom.c] [memory/global.c]
	IPC can now be configured out at compile-time.

	* [loader/task.c]
	Bug fix in TASK_Reschedule() that could cause a task to be deleted
	twice.

	* [miscemu/dosmem.c] (New file)
	Partial emulation of the BIOS data segment.

	* [miscemu/instr.c]
	Trap attempts to access selector 0x40 and remap the access to
	segment __0040H.

	* [tools/build.c]
	Fixed bug in CallTo32_LargeStack() that caused problems when
	compiling Wine with the -fomit-frame-pointer option.

	* [windows/message.c]
	Fixed bug in hardware event handling that could cause some events
	to get ignored.

Sat Aug 26 13:12:59 IST 1995 Michael Veksler <mveksler@vnet.ibm.com>

	* [ipc/README] [ipc/dde.tex]
	LaTeX documentation for the ipc and DDE stuff.

Wed Aug 23 22:01:23 GMT 1995 Michael Veksler <mveksler@vnet.ibm.com>

	* [ipc/Imakefile] [ipc/wine_test_stub.c]
	Fixed IPC testing. Now it can be compiled with "make tests"

Wed Aug 23 21:04:14 1995  Fons Botman  <botman@wab-tis.rabobank.nl>

	* [if1632/kernel.spec] [include/windows.h] [misc/main.c]
	Added GetWinDebugInfo/SetWinDebugInfo stub for player.exe

Sun Aug  20 13:49:42 1995  Marcus Meissner  <msmeissn@faui01.informatik.uni-erlangen.de>

	* [miscemu/int21.c]
	Misc fix to int21,ah=40 (write) to match _lwrite().
	AX=0x440A (check if handle is remote) added.

	* [multimedia/mmsystem.c]
	Moved mciSendString to mcistring.c.

	* [multimedia/mcistring.c]
	New file, string interface for MCI (not complete, not thoroughly
	tested).

	* [multimedia/audio.c]
	IOCTL prints errors; one paranoid check disabled.

	* [misc/file.c]
	Misc operator precedence fixes.

	* [if1632/gdi.spec] [objects/bitblt.c]
	Stub for FastWindowFrame (parameters not correct).

Sat Aug 19 01:31:23 1995  Graham Menhennitt <gfm@werple.mira.net.au>

	* [loader/ne_image.c]
	Preliminary support for iterated segments.

Sat Aug 19 00:43:04 1995  Andrew Taylor  (andrew@riscan.com)

	* [windows/mapping.c]
	In function MAPPING_FixIsotropic(), VportExt[XY] is multiplied by
 	the absolute value of (ydim / xdim) or (xdim / ydim).

Thu Aug 15 23:00:16  Gregory Trubetskoy  <grisha@mira.com>

	* [objects/oembitmap.c]
	Added some includes for Windows 95.

	* [include/sysmetrics.h]
	Added some sysmetrics for Windows 95.

	* [include/bitmaps/*95]
	New files: obm_close_95, obm_closed_95, obm_reduce_95, obm_reduced_95
	obm_zoom_95, obm_zoomd_95 - these are some pixmaps for Windows 95.

Thu Aug 10 12:00:00 1995  Jan Willamowius  (jan@janhh.shnet.org)

	* [misc/shell.c] [rc/sysres*.rc]
	The caption of the ShellAbout dialog box is language specific and
 	should be defined in the resources.
1995-09-01 15:57:28 +00:00

1198 lines
37 KiB
C
Raw Blame History

/*
* 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 "dos_fs.h"
#include "global.h"
#include "ldt.h"
#include "module.h"
#include "neexe.h"
#include "stackframe.h"
#include "task.h"
#include "toolhelp.h"
#include "stddebug.h"
#include "debug.h"
static HMODULE hFirstModule = 0;
static HMODULE hCachedModule = 0; /* Module cached by MODULE_OpenFile */
/***********************************************************************
* 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, table = dll_builtin_table; i < N_BUILTINS; i++, table++)
{
if (!table->used) continue;
hModule = GLOBAL_CreateBlock( GMEM_MOVEABLE, table->module_start,
table->module_end - table->module_start,
0, FALSE, FALSE, FALSE, NULL );
if (!hModule) return FALSE;
FarSetOwner( hModule, hModule );
table->hModule = hModule;
dprintf_module( stddeb, "Built-in %s: hmodule=%04x\n",
table->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, NULL );
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;
}
/* Initialize KERNEL.178 (__WINFLAGS) with the correct flags value */
MODULE_SetEntryPoint( GetModuleHandle( "KERNEL" ), 178, GetWinFlags() );
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 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( DOS_GetUnixFileName( name ), O_RDONLY );
dprintf_module( stddeb, "MODULE_OpenFile: opened '%s' -> %d\n",
name, cachedfd );
return cachedfd;
}
/***********************************************************************
* MODULE_CreateSegments
*/
static 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;
/* The DGROUP is allocated by MODULE_CreateInstance */
if (i == pModule->dgroup) continue;
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_GetInstance
*/
static HINSTANCE MODULE_GetInstance( HMODULE hModule )
{
SEGTABLEENTRY *pSegment;
NE_MODULE *pModule;
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return 0;
if (pModule->dgroup == 0) return hModule;
pSegment = NE_SEG_TABLE( pModule ) + pModule->dgroup - 1;
return pSegment->selector;
}
/***********************************************************************
* MODULE_CreateInstance
*/
static HINSTANCE MODULE_CreateInstance( HMODULE hModule, LOADPARAMS *params )
{
SEGTABLEENTRY *pSegment;
NE_MODULE *pModule;
int minsize;
HINSTANCE hNewInstance, hPrevInstance;
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return 0;
if (pModule->dgroup == 0) return hModule;
pSegment = NE_SEG_TABLE( pModule ) + pModule->dgroup - 1;
hPrevInstance = pSegment->selector;
/* if it's a library, create a new instance only the first time */
if (hPrevInstance)
{
if (pModule->flags & NE_FFLAGS_LIBMODULE) return hPrevInstance;
if (params == (LOADPARAMS*)-1) return hPrevInstance;
}
minsize = pSegment->minsize ? pSegment->minsize : 0x10000;
if (pModule->ss == pModule->dgroup) minsize += pModule->stack_size;
minsize += pModule->heap_size;
hNewInstance = GLOBAL_Alloc( GMEM_ZEROINIT | GMEM_FIXED,
minsize, hModule, FALSE, FALSE, FALSE );
if (!hNewInstance) return 0;
pSegment->selector = hNewInstance;
return hNewInstance;
}
/***********************************************************************
* MODULE_LoadExeHeader
*/
HMODULE MODULE_LoadExeHeader( int fd, OFSTRUCT *ofs )
{
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(ofs->szPathName) +
/* 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) );
pModule->count = 0;
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(ofs->szPathName);
((LOADEDFILEINFO*)pData)->fixed_media = TRUE;
((LOADEDFILEINFO*)pData)->error = 0;
((LOADEDFILEINFO*)pData)->date = 0;
((LOADEDFILEINFO*)pData)->time = 0;
strcpy( ((LOADEDFILEINFO*)pData)->filename, ofs->szPathName );
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;
/* Allocate a segment for the implicitly-loaded DLLs */
if (pModule->modref_count)
{
pModule->dlls_to_init = GLOBAL_Alloc(GMEM_ZEROINIT,
(pModule->modref_count+1)*sizeof(HMODULE),
hModule, FALSE, FALSE, FALSE );
if (!pModule->dlls_to_init) return 11; /* invalid exe */
}
else pModule->dlls_to_init = 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;
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) return 0;
switch(p[1])
{
case 0: /* unused */
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;
}
if (sel == 0xfe) sel = 0xffff; /* constant entry */
else sel = NE_SEG_TABLE(pModule)[sel-1].selector;
return MAKELONG( offset, sel );
}
/***********************************************************************
* MODULE_SetEntryPoint
*
* Change the value of an entry point. Use with caution!
* It can only change the offset value, not the selector.
*/
BOOL MODULE_SetEntryPoint( HMODULE hModule, WORD ordinal, WORD offset )
{
NE_MODULE *pModule;
WORD curOrdinal = 1;
BYTE *p;
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return FALSE;
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) return FALSE;
switch(p[1])
{
case 0: /* unused */
return FALSE;
case 0xff: /* moveable */
p += 2 + 6 * (ordinal - curOrdinal);
*(WORD *)(p + 4) = offset;
break;
default: /* fixed */
p += 2 + 3 * (ordinal - curOrdinal);
*(WORD *)(p + 1) = offset;
break;
}
return TRUE;
}
/***********************************************************************
* MODULE_GetEntryPointName
*
* Return the entry point name for a given ordinal.
* Used only by relay debugging.
* Warning: returned pointer is to a Pascal-type string.
*/
LPSTR MODULE_GetEntryPointName( HMODULE hModule, WORD ordinal )
{
register char *cpnt;
NE_MODULE *pModule;
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return 0;
/* First search the resident names */
cpnt = (char *)pModule + pModule->name_table;
while (*cpnt)
{
cpnt += *cpnt + 1 + sizeof(WORD);
if (*(WORD *)(cpnt + *cpnt + 1) == ordinal) return cpnt;
}
/* Now search the non-resident names table */
if (!pModule->nrname_handle) return 0; /* No non-resident table */
cpnt = (char *)GlobalLock( pModule->nrname_handle );
while (*cpnt)
{
cpnt += *cpnt + 1 + sizeof(WORD);
if (*(WORD *)(cpnt + *cpnt + 1) == ordinal) return cpnt;
}
return NULL;
}
/***********************************************************************
* 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;
}
/**********************************************************************
* MODULE_FindModule
*
* Find a module from a path name.
*/
HMODULE MODULE_FindModule( LPCSTR path )
{
HMODULE hModule = hFirstModule;
LPCSTR filename, dotptr, modulepath, modulename;
BYTE len, *name_table;
if (!(filename = strrchr( path, '\\' ))) filename = path;
else filename++;
if ((dotptr = strrchr( filename, '.' )) != NULL)
len = (BYTE)(dotptr - filename);
else len = strlen( filename );
while(hModule)
{
NE_MODULE *pModule = (NE_MODULE *)GlobalLock( hModule );
if (!pModule) break;
modulepath = ((LOADEDFILEINFO*)((char*)pModule + pModule->fileinfo))->filename;
if (!(modulename = strrchr( modulepath, '\\' )))
modulename = modulepath;
else modulename++;
if (!strcasecmp( modulename, filename )) return hModule;
name_table = (BYTE *)pModule + pModule->name_table;
if ((*name_table == len) && !strncasecmp(filename, name_table+1, len))
return hModule;
hModule = pModule->next;
}
return 0;
}
/**********************************************************************
* MODULE_FreeModule
*
* Remove a module from memory.
*/
static void MODULE_FreeModule( HMODULE hModule )
{
HMODULE *hPrevModule;
NE_MODULE *pModule;
SEGTABLEENTRY *pSegment;
WORD *pModRef;
int i;
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return;
/* FIXME: should call the exit code for the library here */
/* Remove it from the linked list */
hPrevModule = &hFirstModule;
while (*hPrevModule && (*hPrevModule != hModule))
{
hPrevModule = &((NE_MODULE *)GlobalLock( *hPrevModule ))->next;
}
if (*hPrevModule) *hPrevModule = pModule->next;
/* Free all the segments */
pSegment = NE_SEG_TABLE( pModule );
for (i = 1; i <= pModule->seg_count; i++, pSegment++)
{
GlobalFree( pSegment->selector );
}
/* Free the referenced modules */
pModRef = NE_MODULE_TABLE( pModule );
for (i = 0; i < pModule->modref_count; i++, pModRef++)
{
FreeModule( *pModRef );
}
/* Free the module storage */
if (pModule->nrname_handle) GlobalFree( pModule->nrname_handle );
if (pModule->dlls_to_init) GlobalFree( pModule->dlls_to_init );
GlobalFree( hModule );
/* Remove module from cache */
if (hCachedModule == hModule) hCachedModule = 0;
}
/**********************************************************************
* LoadModule (KERNEL.45)
*/
HINSTANCE LoadModule( LPCSTR name, LPVOID paramBlock )
{
HMODULE hModule;
HANDLE hInstance, hPrevInstance;
NE_MODULE *pModule;
LOADPARAMS *params = (LOADPARAMS *)paramBlock;
WORD *pModRef, *pDLLs;
int i, fd;
hModule = MODULE_FindModule( name );
if (!hModule) /* We have to load the module */
{
OFSTRUCT ofs;
if (strchr( name, '/' )) name = DOS_GetDosFileName( name );
if ((fd = OpenFile( name, &ofs, OF_READ )) == -1)
return 2; /* File not found */
/* Create the module structure */
if ((hModule = MODULE_LoadExeHeader( fd, &ofs )) < 32)
{
close( fd );
fprintf( stderr, "LoadModule: can't load '%s', error=%d\n",
name, hModule );
return hModule;
}
pModule = (NE_MODULE *)GlobalLock( hModule );
/* Allocate the segments for this module */
MODULE_CreateSegments( hModule );
hPrevInstance = 0;
hInstance = MODULE_CreateInstance( hModule, (LOADPARAMS*)paramBlock );
/* Load the referenced DLLs */
pModRef = (WORD *)((char *)pModule + pModule->modref_table);
pDLLs = (WORD *)GlobalLock( pModule->dlls_to_init );
for (i = 0; i < pModule->modref_count; i++, pModRef++)
{
char buffer[256];
BYTE *pstr = (BYTE *)pModule + pModule->import_table + *pModRef;
memcpy( buffer, pstr + 1, *pstr );
strcpy( buffer + *pstr, ".dll" );
dprintf_module( stddeb, "Loading '%s'\n", buffer );
if (!(*pModRef = MODULE_FindModule( buffer )))
{
/* If the DLL is not loaded yet, load it and store */
/* its handle in the list of DLLs to initialize. */
HMODULE hDLL;
if ((hDLL = LoadModule( buffer, (LPVOID)-1 )) == 2) /* file not found */
{
char *p;
/* Try with prepending the path of the current module */
GetModuleFileName( hModule, buffer, 256 );
if (!(p = strrchr( buffer, '\\' ))) p = buffer;
memcpy( p + 1, pstr + 1, *pstr );
strcpy( p + 1 + *pstr, ".dll" );
hDLL = LoadModule( buffer, (LPVOID)-1 );
}
if (hDLL < 32)
{
fprintf( stderr, "Could not load '%s' required by '%s', error = %d\n",
buffer, name, hDLL );
return 2; /* file not found */
}
*pModRef = GetExePtr( hDLL );
*pDLLs++ = *pModRef;
}
else /* Increment the reference count of the DLL */
{
NE_MODULE *pOldDLL = (NE_MODULE *)GlobalLock( *pModRef );
if (pOldDLL) pOldDLL->count++;
}
}
/* Load the segments */
for (i = 1; i <= pModule->seg_count; i++) NE_LoadSegment( hModule, i );
/* Fixup the functions prologs */
NE_FixupPrologs( hModule );
/* Make sure the usage count is 1 on the first loading of */
/* the module, even if it contains circular DLL references */
pModule->count = 1;
}
else
{
pModule = (NE_MODULE *)GlobalLock( hModule );
hPrevInstance = MODULE_GetInstance( hModule );
hInstance = MODULE_CreateInstance( hModule, params );
if (hInstance != hPrevInstance) /* not a library */
NE_LoadSegment( hModule, pModule->dgroup );
pModule->count++;
}
/* Create a task for this instance */
if (!(pModule->flags & NE_FFLAGS_LIBMODULE) && (paramBlock != (LPVOID)-1))
{
TASK_CreateTask( hModule, hInstance, hPrevInstance,
params->hEnvironment,
(LPSTR)PTR_SEG_TO_LIN( params->cmdLine ),
*((WORD *)PTR_SEG_TO_LIN(params->showCmd)+1) );
}
return hInstance;
}
/**********************************************************************
* FreeModule (KERNEL.46)
*/
BOOL FreeModule( HANDLE hModule )
{
NE_MODULE *pModule;
hModule = GetExePtr( hModule ); /* In case we were passed an hInstance */
if (!(pModule = (NE_MODULE *)GlobalLock( hModule ))) return FALSE;
dprintf_module( stddeb, "FreeModule: %s count %d\n",
MODULE_GetModuleName(hModule), pModule->count );
if (--pModule->count == 0) MODULE_FreeModule( hModule );
return TRUE;
}
/**********************************************************************
* GetModuleHandle (KERNEL.47)
*/
HMODULE WIN16_GetModuleHandle( SEGPTR name )
{
if (HIWORD(name) == 0) return GetExePtr( LOWORD(name) );
return MODULE_FindModule( PTR_SEG_TO_LIN(name) );
}
HMODULE GetModuleHandle( LPCSTR name )
{
return MODULE_FindModule( name );
}
/**********************************************************************
* 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';
dprintf_module( stddeb, "GetModuleFilename: %s\n", lpFileName );
return strlen(lpFileName);
}
/***********************************************************************
* LoadLibrary (KERNEL.95)
*/
HANDLE LoadLibrary( LPCSTR libname )
{
HANDLE handle;
dprintf_module( stddeb, "LoadLibrary: (%08x) %s\n", (int)libname, libname);
/* This does not increment the module reference count, and will
* therefore cause crashes on FreeLibrary calls.
if ((handle = MODULE_FindModule( libname )) != 0) return handle;
*/
handle = LoadModule( libname, (LPVOID)-1 );
if (handle == 2) /* file not found */
{
char buffer[256];
strcpy( buffer, libname );
strcat( buffer, ".dll" );
handle = LoadModule( buffer, (LPVOID)-1 );
}
if (handle >= 32) NE_InitializeDLLs( GetExePtr(handle) );
return handle;
}
/***********************************************************************
* FreeLibrary (KERNEL.96)
*/
void FreeLibrary( HANDLE handle )
{
dprintf_module( stddeb,"FreeLibrary: %04x\n", handle );
FreeModule( handle );
}
/***********************************************************************
* WinExec (KERNEL.166)
*/
HANDLE WinExec( LPSTR lpCmdLine, WORD nCmdShow )
{
LOADPARAMS params;
HLOCAL cmdShowHandle, cmdLineHandle;
HANDLE handle;
WORD *cmdShowPtr;
char *p, *cmdline, filename[256];
if (!(cmdShowHandle = GlobalAlloc( 0, 2 * sizeof(WORD) ))) return 0;
if (!(cmdLineHandle = GlobalAlloc( 0, 256 ))) return 0;
/* Store nCmdShow */
cmdShowPtr = (WORD *)GlobalLock( cmdShowHandle );
cmdShowPtr[0] = 2;
cmdShowPtr[1] = nCmdShow;
/* Build the filename and command-line */
cmdline = (char *)GlobalLock( cmdLineHandle );
strncpy( filename, lpCmdLine, 256 );
filename[255] = '\0';
for (p = filename; *p && (*p != ' ') && (*p != '\t'); p++);
if (*p)
{
strncpy( cmdline, p + 1, 128 );
cmdline[127] = '\0';
}
else cmdline[0] = '\0';
*p = '\0';
/* Now load the executable file */
params.hEnvironment = SELECTOROF( GetDOSEnvironment() );
params.cmdLine = WIN16_GlobalLock( cmdLineHandle );
params.showCmd = WIN16_GlobalLock( cmdShowHandle );
params.reserved = 0;
handle = LoadModule( filename, &params );
if (handle == 2) /* file not found */
{
strcat( filename, ".exe" );
handle = LoadModule( filename, &params );
}
GlobalFree( cmdShowHandle );
GlobalFree( cmdLineHandle );
return handle;
}
/***********************************************************************
* GetProcAddress (KERNEL.50)
*/
FARPROC GetProcAddress( HANDLE hModule, SEGPTR name )
{
WORD ordinal;
SEGPTR ret;
if (!hModule) hModule = GetCurrentTask();
hModule = GetExePtr( hModule );
if (HIWORD(name) != 0)
{
ordinal = MODULE_GetOrdinal( hModule, (LPSTR)PTR_SEG_TO_LIN(name) );
dprintf_module( stddeb, "GetProcAddress: %04x '%s'\n",
hModule, (LPSTR)PTR_SEG_TO_LIN(name) );
}
else
{
ordinal = LOWORD(name);
dprintf_module( stddeb, "GetProcAddress: %04x %04x\n",
hModule, ordinal );
}
if (!ordinal) return (FARPROC)0;
ret = MODULE_GetEntryPoint( hModule, ordinal );
dprintf_module( stddeb, "GetProcAddress: returning %08lx\n", ret );
return (FARPROC)ret;
}
/***********************************************************************
* GetWndProcEntry16 (not a Windows API function)
*
* Return an entry point from the WINPROCS dll.
*/
WNDPROC GetWndProcEntry16( char *name )
{
WORD ordinal;
static HMODULE hModule = 0;
if (!hModule) hModule = GetModuleHandle( "WINPROCS" );
ordinal = MODULE_GetOrdinal( hModule, name );
return MODULE_GetEntryPoint( hModule, ordinal );
}
/**********************************************************************
* 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 );
}
Reference in a new issue View git blame Copy permalink