reactos/rostests/tests/noexecute/noexecute.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <windows.h>
#include <pseh/pseh.h>
int test(int x)
{
return x+1;
}
void execute(char* message, int(*func)(int))
{
ULONG status = 0;
ULONG result;
printf("%s ... ", message);
_SEH_TRY
{
result = func(1);
}
_SEH_HANDLE
{
status = _SEH_GetExceptionCode();
}
_SEH_END;
if (status == 0)
{
printf("OK.\n");
}
else
{
printf("Error, status=%lx.\n", status);
}
}
char data[100];
int main(void)
{
unsigned char stack[100];
void* heap;
ULONG protection;
printf("NoExecute\n");
execute("Executing within the code segment", test);
memcpy(data, test, 100);
execute("Executing within the data segment", (int(*)(int))data);
memcpy(stack, test, 100);
execute("Executing on stack segment", (int(*)(int))stack);
heap = VirtualAlloc(NULL, 100, MEM_COMMIT, PAGE_READWRITE);
memcpy(heap, test, 100);
execute("Executing on the heap with protection PAGE_READWRITE", (int(*)(int))heap);
VirtualProtect(heap, 100, PAGE_EXECUTE, &protection);
execute("Executing on the heap with protection PAGE_EXECUTE", (int(*)(int))heap);
return 0;
}