Update of /cvsroot/wisp/wisp/users/dig
In directory sc8-pr-cvs1:/tmp/cvs-serv7709
Modified Files:
Makefile.am make-pe-exe.py
Added Files:
pe.py
Log Message:
renamed make_mz_prefix to make_pe_mz_stub and moved it to pe.py
--- NEW FILE: pe.py ---
#### pe.py - the PE executable format
#
# Copyleft © 2003 by Andres Soolo (di...@us...)
# This file is licensed under the GNU GPL v2. If you
# don't know what that means, please do read the GPL.
#
#### @(#) $Id: pe.py,v 1.1 2003/05/16 14:09:55 digg Exp $
from mz import *
def make_pe_mz_stub (message = 'OS too broken'):
# The result's assumed origin address is 0x100.
if message.find('$') != -1:
raise 'MZ message may not contain dollar signs', message
if message.find('\r') == -1: # if no CRs, insert them
message = '\r\n'.join(message.split('\n'))
b = make_mz_header()
b.place_symbol('#mz/reloc-count', 0) # no relocation
b.place_symbol('#mz/header-size', 0) # empty MZ header--load it all
b.place_symbol('#mz/low-memory-limit', 0x40)
b.place_symbol('#mz/high-memory-limit', 0x40)
b.place_symbol('#mz/ss', -0x10)
b.place_symbol('#mz/sp', 0x100)
b.place_symbol('#mz/checksum', 0)
b.place_symbol('#mz/ip', 0x100 + b.memsz())
b.place_symbol('#mz/cs', -0x10)
b.place_symbol('!mz/reloc', 0)
b.place_symbol('#mz/overlay', 0)
b[::1] = 0x8C, 0xC8, 0x8E, 0xD8 # mov %ax, %cs; mov %ds, mov %ax
b[::1] = 0xB4, 0x09 # mov %ah, 0x09
b[::1] = 0xBA; b[::2] = '&mz/message' # mov %dx, message
b[::1] = 0xCD, 0x21 # int 0x21
b[::1] = 0xB8, 0xFF, 0x4C, 0xCD, 0x21 # mov %ax, 0x4CFF; int 0x21
message += '$' # Dollar the Terminator
# a pointer to the PE signature must appear at the offset 0x003C
room = 0x003C - b.filesz()
if message[0] == '!': room += 1
if len(message) <= room:
b.place_symbol('&mz/message')
b.emit_string(message)
b.emit_string('\x00' * (0x003C - b.filesz()))
b[::4] = '!pe'
else:
b.emit_string('\x00' * (0x003C - b.filesz()))
b[::4] = '!pe'
b.place_symbol('&mz/message')
b.emit_string(message)
b.place_symbol('#mz/bytes-in-last-block', b.filesz() % 0x200)
b.place_symbol('#mz/blocks-in-file', (b.filesz() + 0x1FF) / 0x200)
return b
Index: Makefile.am
===================================================================
RCS file: /cvsroot/wisp/wisp/users/dig/Makefile.am,v
retrieving revision 1.12
retrieving revision 1.13
diff -u -d -r1.12 -r1.13
--- Makefile.am 16 May 2003 14:05:38 -0000 1.12
+++ Makefile.am 16 May 2003 14:09:56 -0000 1.13
@@ -7,7 +7,7 @@
#### @(#) $Id$
EXTRA_DIST = .cvsignore .pycheckrc struburn.wisp bits.py linkie.py \
- coff.py elf.py \
+ coff.py elf.py pe.py \
makehello.py elfdump.py
all:
Index: make-pe-exe.py
===================================================================
RCS file: /cvsroot/wisp/wisp/users/dig/make-pe-exe.py,v
retrieving revision 1.59
retrieving revision 1.60
diff -u -d -r1.59 -r1.60
--- make-pe-exe.py 16 May 2003 13:52:01 -0000 1.59
+++ make-pe-exe.py 16 May 2003 14:09:56 -0000 1.60
@@ -9,7 +9,7 @@
#### @(#) $Id$
from linkie import Linkie
-from mz import *
+from pe import *
import time
# This file is *very* incomplete
@@ -17,48 +17,6 @@
def roundup (value, boundary):
return (value + boundary - 1) & ~(boundary - 1)
-def make_mz_prefix (message = 'OS too broken'):
- # The result's assumed origin address is 0x100.
- if message.find('$') != -1:
- raise 'MZ message may not contain dollar signs', message
- if message.find('\r') == -1: # if no CRs, insert them
- message = '\r\n'.join(message.split('\n'))
- b = make_mz_header()
- b.place_symbol('#mz/reloc-count', 0) # no relocation
- b.place_symbol('#mz/header-size', 0) # empty MZ header--load it all
- b.place_symbol('#mz/low-memory-limit', 0x40)
- b.place_symbol('#mz/high-memory-limit', 0x40)
- b.place_symbol('#mz/ss', -0x10)
- b.place_symbol('#mz/sp', 0x100)
- b.place_symbol('#mz/checksum', 0)
- b.place_symbol('#mz/ip', 0x100 + b.memsz())
- b.place_symbol('#mz/cs', -0x10)
- b.place_symbol('!mz/reloc', 0)
- b.place_symbol('#mz/overlay', 0)
- b[::1] = 0x8C, 0xC8, 0x8E, 0xD8 # mov %ax, %cs; mov %ds, mov %ax
- b[::1] = 0xB4, 0x09 # mov %ah, 0x09
- b[::1] = 0xBA; b[::2] = '&mz/message' # mov %dx, message
- b[::1] = 0xCD, 0x21 # int 0x21
- b[::1] = 0xB8, 0xFF, 0x4C, 0xCD, 0x21 # mov %ax, 0x4CFF; int 0x21
-
- message += '$' # Dollar the Terminator
- # a pointer to the PE signature must appear at the offset 0x003C
- room = 0x003C - b.filesz()
- if message[0] == '!': room += 1
- if len(message) <= room:
- b.place_symbol('&mz/message')
- b.emit_string(message)
- b.emit_string('\x00' * (0x003C - b.filesz()))
- b[::4] = '!pe'
- else:
- b.emit_string('\x00' * (0x003C - b.filesz()))
- b[::4] = '!pe'
- b.place_symbol('&mz/message')
- b.emit_string(message)
- b.place_symbol('#mz/bytes-in-last-block', b.filesz() % 0x200)
- b.place_symbol('#mz/blocks-in-file', (b.filesz() + 0x1FF) / 0x200)
- return b
-
def make_coff_header ():
h = Linkie('<')
h.align(4)
@@ -228,7 +186,7 @@
sectnames = ['.text', '.istubs', '.data', '.bss', '.imports']
e = Linkie('<');
-e.glue(0, make_mz_prefix('OS too broken'), 0x100)
+e.glue(0, make_pe_mz_stub('OS too broken'), 0x100)
if e.memsz() < 0x80: e.align(0x80) # attempt to create a file(1)-friendly exe
e.align(8) # PE header must be aligned to 8
e.place_symbol('!pe')
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