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 Forums >>  Debuggers  >>  pydbg problem

Topic created on: April 22, 2008 02:52 CDT by tatoo799 .

hi. i'm a beginner for pydbg.
i was trying to make a program that is monitoring
exception.

first, i made simple C program,

--exp.c code--
char buf[12];
strcpy(buf, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
--exp.c code--


and i made simple python program using pydbg.


--test.py--
from pydbg import *
from pydbg.defines import *
import sys
import os

def handler_breakpoint (pydbg):
if pydbg.first_breakpoint:
                  print "this is first"
                  return DBG_CONTINUE
         print "called from thread %d @%08x" % (pydbg.dbg.dwThreadId, pydbg.exception_address)
         return DBG_CONTINUE

dbg = pydbg()

dbg.set_callback(EXCEPTION_BREAKPOINT, handler_breakpoint)

dbg.load("C:\exp.exe")

dbg.debug_event_loop()
--test.py--


i just saw "this is first" when i ran the test.py script.

i wanna see exception that is related 0x61616161
i dont know why i can't see the exception.

how can i monitor child process's exception?

thank you guys..

sorry my english.

  tatoo799   April 22, 2008 03:50.32 CDT
oh, i fixed this problem.

i could see what i wanted msg, when i changed like this
dbg.set_callback(EXCEPTION_ACCESS_VIOLATION, handler_breakpoint)

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