44 lines
964 B
C
44 lines
964 B
C
|
/*
|
||
|
|
* sehsub.c
|
||
|
|
*
|
||
|
|
* In an attempt to see what might be going on inside CRTDLL, this program
|
||
|
|
* walks the exception list after creating a new thread with _beginthread.
|
||
|
|
*
|
||
|
|
* It turns out that _beginthread DOES install an exception handler, as
|
||
|
|
* expected, but this handler is NOT exported by CRTDLL (it is certainly
|
||
|
|
* not _except_handler2 or _XcptFilter)... an odd and unpleasant turn of
|
||
|
|
* events.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <windows.h>
|
||
|
|
#include <excpt.h>
|
||
|
|
#include <process.h>
|
||
|
|
|
||
|
|
#include "exutil.h"
|
||
|
|
|
||
|
|
extern void* __imp__except_handler3;
|
||
|
|
|
||
|
|
unsigned
|
||
|
|
my_thread (void * p)
|
||
|
|
{
|
||
|
|
printf ("In my thread.\n");
|
||
|
|
WalkExceptionHandlers();
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
main ()
|
||
|
|
{
|
||
|
|
unsigned long h;
|
||
|
|
unsigned id;
|
||
|
|
printf ("In main.\n");
|
||
|
|
WalkExceptionHandlers();
|
||
|
|
|
||
|
|
printf ("Except_handler3 %08x\n", __imp__except_handler3);
|
||
|
|
h = _beginthreadex (NULL, 0, my_thread, NULL, 0, &id);
|
||
|
|
|
||
|
|
WaitForSingleObject ((HANDLE) h, INFINITE);
|
||
|
|
CloseHandle ((HANDLE) h);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|