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Sweden-Number/tools/winedump/ne.c

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/*
* Dumping of NE binaries
*
* Copyright 2002 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "windef.h"
#include "winbase.h"
#include "wine/winbase16.h"
#include "winedump.h"
struct ne_segtable_entry
{
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 */
};
struct relocation_entry
{
BYTE address_type; /* Relocation address type */
BYTE relocation_type; /* Relocation type */
WORD offset; /* Offset in segment to fixup */
WORD target1; /* Target specification */
WORD target2; /* Target specification */
};
#define NE_RADDR_LOWBYTE 0
#define NE_RADDR_SELECTOR 2
#define NE_RADDR_POINTER32 3
#define NE_RADDR_OFFSET16 5
#define NE_RADDR_POINTER48 11
#define NE_RADDR_OFFSET32 13
#define NE_RELTYPE_INTERNAL 0
#define NE_RELTYPE_ORDINAL 1
#define NE_RELTYPE_NAME 2
#define NE_RELTYPE_OSFIXUP 3
#define NE_RELFLAG_ADDITIVE 4
static inline WORD get_word( const BYTE *ptr )
{
return ptr[0] | (ptr[1] << 8);
}
static void dump_ne_header( const IMAGE_OS2_HEADER *ne )
{
printf( "File header:\n" );
printf( "Linker version: %d.%d\n", ne->ne_ver, ne->ne_rev );
printf( "Entry table: %x len %d\n", ne->ne_enttab, ne->ne_cbenttab );
printf( "Checksum: %08x\n", ne->ne_crc );
printf( "Flags: %04x\n", ne->ne_flags );
printf( "Auto data segment: %x\n", ne->ne_autodata );
printf( "Heap size: %d bytes\n", ne->ne_heap );
printf( "Stack size: %d bytes\n", ne->ne_stack );
printf( "Stack pointer: %x:%04x\n", SELECTOROF(ne->ne_sssp), OFFSETOF(ne->ne_sssp) );
printf( "Entry point: %x:%04x\n", SELECTOROF(ne->ne_csip), OFFSETOF(ne->ne_csip) );
printf( "Number of segments: %d\n", ne->ne_cseg );
printf( "Number of modrefs: %d\n", ne->ne_cmod );
printf( "Segment table: %x\n", ne->ne_segtab );
printf( "Resource table: %x\n", ne->ne_rsrctab );
printf( "Resident name table: %x\n", ne->ne_restab );
printf( "Module table: %x\n", ne->ne_modtab );
printf( "Import table: %x\n", ne->ne_imptab );
printf( "Non-resident table: %x\n", ne->ne_nrestab );
printf( "Exe type: %x\n", ne->ne_exetyp );
printf( "Other flags: %x\n", ne->ne_flagsothers );
printf( "Fast load area: %x-%x\n", ne->ne_pretthunks << ne->ne_align,
(ne->ne_pretthunks+ne->ne_psegrefbytes) << ne->ne_align );
printf( "Expected version: %d.%d\n", HIBYTE(ne->ne_expver), LOBYTE(ne->ne_expver) );
}
static void dump_ne_names( const void *base, const IMAGE_OS2_HEADER *ne )
{
const unsigned char *pstr = (const unsigned char *)ne + ne->ne_restab;
printf( "\nResident name table:\n" );
while (*pstr)
{
printf( " %4d: %*.*s\n", get_word(pstr + *pstr + 1), *pstr, *pstr, pstr + 1 );
pstr += *pstr + 1 + sizeof(WORD);
}
if (ne->ne_cbnrestab)
{
printf( "\nNon-resident name table:\n" );
pstr = (const unsigned char *)base + ne->ne_nrestab;
while (*pstr)
{
printf( " %4d: %*.*s\n", get_word(pstr + *pstr + 1), *pstr, *pstr, pstr + 1 );
pstr += *pstr + 1 + sizeof(WORD);
}
}
}
static const char *get_resource_type( WORD id )
{
static char buffer[5];
switch(id)
{
case NE_RSCTYPE_CURSOR: return "CURSOR";
case NE_RSCTYPE_BITMAP: return "BITMAP";
case NE_RSCTYPE_ICON: return "ICON";
case NE_RSCTYPE_MENU: return "MENU";
case NE_RSCTYPE_DIALOG: return "DIALOG";
case NE_RSCTYPE_STRING: return "STRING";
case NE_RSCTYPE_FONTDIR: return "FONTDIR";
case NE_RSCTYPE_FONT: return "FONT";
case NE_RSCTYPE_ACCELERATOR: return "ACCELERATOR";
case NE_RSCTYPE_RCDATA: return "RCDATA";
case NE_RSCTYPE_GROUP_CURSOR: return "CURSOR_GROUP";
case NE_RSCTYPE_GROUP_ICON: return "ICON_GROUP";
default:
sprintf( buffer, "%04x", id );
return buffer;
}
}
static void dump_ne_resources( const void *base, const IMAGE_OS2_HEADER *ne )
{
const NE_NAMEINFO *name;
const void *res_ptr = (const char *)ne + ne->ne_rsrctab;
WORD size_shift = get_word(res_ptr);
const NE_TYPEINFO *info = (const NE_TYPEINFO *)((const WORD *)res_ptr + 1);
int count;
printf( "\nResources:\n" );
while (info->type_id != 0 && (const char *)info < (const char *)ne + ne->ne_restab)
{
name = (const NE_NAMEINFO *)(info + 1);
for (count = info->count; count > 0; count--, name++)
{
if (name->id & 0x8000) printf( " %d", (name->id & ~0x8000) );
else printf( " %.*s", *((const unsigned char *)res_ptr + name->id),
(const char *)res_ptr + name->id + 1 );
if (info->type_id & 0x8000) printf( " %s", get_resource_type(info->type_id) );
else printf( " %.*s", *((const unsigned char *)res_ptr + info->type_id),
(const char *)res_ptr + info->type_id + 1 );
printf(" flags %04x length %04x\n", name->flags, name->length << size_shift);
dump_data( (const unsigned char *)base + (name->offset << size_shift),
name->length << size_shift, " " );
}
info = (const NE_TYPEINFO *)name;
}
}
static const char *get_export_name( const void *base, const IMAGE_OS2_HEADER *ne, int ordinal )
{
static char name[256];
const BYTE *pstr;
int pass = 0;
/* search the resident names */
while (pass < 2)
{
if (pass == 0) /* resident names */
{
pstr = (const BYTE *)ne + ne->ne_restab;
if (*pstr) pstr += *pstr + 1 + sizeof(WORD); /* skip first entry (module name) */
}
else /* non-resident names */
{
if (!ne->ne_cbnrestab) break;
pstr = (const BYTE *)base + ne->ne_nrestab;
}
while (*pstr)
{
WORD ord = get_word(pstr + *pstr + 1);
if (ord == ordinal)
{
memcpy( name, pstr + 1, *pstr );
name[*pstr] = 0;
return name;
}
pstr += *pstr + 1 + sizeof(WORD);
}
pass++;
}
name[0] = 0;
return name;
}
static void dump_ne_exports( const void *base, const IMAGE_OS2_HEADER *ne )
{
const BYTE *ptr = (const BYTE *)ne + ne->ne_enttab;
const BYTE *end = ptr + ne->ne_cbenttab;
int i, ordinal = 1;
if (!ne->ne_cbenttab || !*ptr) return;
printf( "\nExported entry points:\n" );
while (ptr < end && *ptr)
{
BYTE count = *ptr++;
BYTE type = *ptr++;
switch(type)
{
case 0: /* next bundle */
ordinal += count;
break;
case 0xff: /* movable */
for (i = 0; i < count; i++)
{
printf( " %4d MOVABLE %d:%04x %s\n",
ordinal + i, ptr[3], get_word(ptr + 4),
get_export_name( base, ne, ordinal + i ) );
ptr += 6;
}
ordinal += count;
break;
case 0xfe: /* constant */
for (i = 0; i < count; i++)
{
printf( " %4d CONST %04x %s\n",
ordinal + i, get_word(ptr + 1),
get_export_name( base, ne, ordinal + i ) );
ptr += 3;
}
ordinal += count;
break;
default: /* fixed */
for (i = 0; i < count; i++)
{
printf( " %4d FIXED %d:%04x %s\n",
ordinal + i, type, get_word(ptr + 1),
get_export_name( base, ne, ordinal + i ) );
ptr += 3;
}
ordinal += count;
break;
}
}
}
static const char *get_reloc_name( BYTE addr_type, int additive )
{
switch(addr_type & 0x7f)
{
case NE_RADDR_LOWBYTE: return additive ? "byte add" : "byte";
case NE_RADDR_OFFSET16: return additive ? "off16 add" : "off16";
case NE_RADDR_POINTER32: return additive ? "ptr32 add" : "ptr32";
case NE_RADDR_SELECTOR: return additive ? "sel add" : "sel";
case NE_RADDR_POINTER48: return additive ? "ptr48 add" : "ptr48";
case NE_RADDR_OFFSET32: return additive ? "off32 add" : "off32";
}
return "???";
}
static const char *get_seg_flags( WORD flags )
{
static char buffer[256];
buffer[0] = 0;
#define ADD_FLAG(x) if (flags & NE_SEGFLAGS_##x) strcat( buffer, " " #x );
ADD_FLAG(DATA);
ADD_FLAG(ALLOCATED);
ADD_FLAG(LOADED);
ADD_FLAG(ITERATED);
ADD_FLAG(MOVEABLE);
ADD_FLAG(SHAREABLE);
ADD_FLAG(PRELOAD);
ADD_FLAG(EXECUTEONLY);
ADD_FLAG(READONLY);
ADD_FLAG(RELOC_DATA);
ADD_FLAG(SELFLOAD);
ADD_FLAG(DISCARDABLE);
ADD_FLAG(32BIT);
#undef ADD_FLAG
if (buffer[0])
{
buffer[0] = '(';
strcat( buffer, ")" );
}
return buffer;
}
static void dump_relocations( const void *base, const IMAGE_OS2_HEADER *ne, WORD count,
const struct relocation_entry *rep )
{
const WORD *modref = (const WORD *)((const BYTE *)ne + ne->ne_modtab);
const BYTE *mod_name, *func_name;
WORD i;
for (i = 0; i < count; i++, rep++)
{
int additive = rep->relocation_type & NE_RELFLAG_ADDITIVE;
switch (rep->relocation_type & 3)
{
case NE_RELTYPE_ORDINAL:
mod_name = (const BYTE *)ne + ne->ne_imptab + modref[rep->target1 - 1];
printf( "%6d: %s = %*.*s.%d\n", i + 1, get_reloc_name( rep->address_type, additive ),
*mod_name, *mod_name, mod_name + 1, rep->target2 );
break;
case NE_RELTYPE_NAME:
mod_name = (const BYTE *)ne + ne->ne_imptab + modref[rep->target1 - 1];
func_name = (const BYTE *)ne + ne->ne_imptab + rep->target2;
printf( "%6d: %s = %*.*s.%*.*s\n", i + 1, get_reloc_name( rep->address_type, additive ),
*mod_name, *mod_name, mod_name + 1,
*func_name, *func_name, func_name + 1 );
break;
case NE_RELTYPE_INTERNAL:
if ((rep->target1 & 0xff) == 0xff)
{
/* the module itself */
mod_name = (const BYTE *)ne + ne->ne_restab;
printf( "%6d: %s = %*.*s.%d\n", i + 1, get_reloc_name( rep->address_type, additive ),
*mod_name, *mod_name, mod_name + 1, rep->target2 );
}
else
printf( "%6d: %s = %d:%04x\n", i + 1, get_reloc_name( rep->address_type, additive ),
rep->target1, rep->target2 );
break;
case NE_RELTYPE_OSFIXUP:
/* Relocation type 7:
*
* These appear to be used as fixups for the Windows
* floating point emulator. Let's just ignore them and
* try to use the hardware floating point. Linux should
* successfully emulate the coprocessor if it doesn't
* exist.
*/
printf( "%6d: %s = TYPE %d, OFFSET %04x, TARGET %04x %04x\n",
i + 1, get_reloc_name( rep->address_type, additive ),
rep->relocation_type, rep->offset,
rep->target1, rep->target2 );
break;
}
}
}
static void dump_ne_segment( const void *base, const IMAGE_OS2_HEADER *ne, int segnum )
{
const struct ne_segtable_entry *table = (const struct ne_segtable_entry *)((const BYTE *)ne + ne->ne_segtab);
const struct ne_segtable_entry *seg = table + segnum - 1;
printf( "\nSegment %d:\n", segnum );
printf( " File offset: %08x\n", seg->seg_data_offset << ne->ne_align );
printf( " Length: %08x\n", seg->seg_data_length );
printf( " Flags: %08x %s\n", seg->seg_flags, get_seg_flags(seg->seg_flags) );
printf( " Alloc size: %08x\n", seg->min_alloc );
if (seg->seg_flags & NE_SEGFLAGS_RELOC_DATA)
{
const BYTE *ptr = (const BYTE *)base + (seg->seg_data_offset << ne->ne_align) + seg->seg_data_length;
WORD count = get_word(ptr);
ptr += sizeof(WORD);
printf( " Relocations:\n" );
dump_relocations( base, ne, count, (const struct relocation_entry *)ptr );
}
}
void ne_dump( const void *exe, size_t exe_size )
{
unsigned int i;
const IMAGE_DOS_HEADER *dos = exe;
const IMAGE_OS2_HEADER *ne = (const IMAGE_OS2_HEADER *)((const char *)dos + dos->e_lfanew);
dump_ne_header( ne );
dump_ne_names( exe, ne );
dump_ne_resources( exe, ne );
dump_ne_exports( exe, ne );
for (i = 1; i <= ne->ne_cseg; i++) dump_ne_segment( exe, ne, i );
}
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