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- /*
- * This file tests some of the basics of structured exception handling as
- * implemented in excpt.h and the Windows API header files.
- *
- * The program installs two exception handlers, then attempts to write to
- * a pointer to an invalid address. This causes an exception which passes
- * through the exception handlers and on to the default system exception
- * handler. That handler brings up the dialog box all Windows users know
- * and love, and then the program is terminated.
- *
- * You might note that after the initial run up through our exception frames
- * we get a second run up through them with the exception code
- * STATUS_INVALID_DISPOSITION and the code EH_UNWINDING. This seems normal
- * except that the code got changed from the previous STATUS_ACCESS_VIOLATION.
- * I don't understand that bit particularly.
- */
-
- #include <stdio.h>
- #include <excpt.h>
-
- #include "exutil.h"
-
- EXCEPTION_DISPOSITION
- my_handler (
- struct _EXCEPTION_RECORD* pExceptionRec,
- void* pEstablisherFrame,
- struct _CONTEXT* pContextRecord,
- void* pDispatcherContext
- )
- {
- printf ("In my exception handler!\n");
- DumpExceptionRecord (pExceptionRec);
- return ExceptionContinueSearch;
- }
-
- EXCEPTION_DISPOSITION
- my_handler2 (
- struct _EXCEPTION_RECORD* pExceptionRec,
- void* pEstablisherFrame,
- struct _CONTEXT* pContextRecord,
- void* pDispatcherContext
- )
- {
- printf ("In top exception handler!\n");
- DumpExceptionRecord (pExceptionRec);
- return ExceptionContinueSearch;
- }
-
- main ()
- {
- char* x;
-
- printf ("my_handler2 = %08x\n", my_handler2);
- printf ("my_handler = %08x\n", my_handler);
-
- WalkExceptionHandlers();
-
- __try1(my_handler2)
- x = (char*) 10;
-
- WalkExceptionHandlers();
-
- __try1(my_handler)
-
- WalkExceptionHandlers();
-
- *x = 1;
- __except1
- __except1
- printf ("Finished!\n");
- }
-
-