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/* execheap.c - Tests wether code in the heap can be executed
*
* Copyright (c)2003 by Peter Busser <peter@adamantix.org>
* This file has been released under the GNU Public Licence version 2 or later
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "body.h"
char *testname = "Executable heap ";
void doit( void )
{
char *buf;
fptr func;
buf = malloc( 1 );
if( buf == NULL ) {
fprintf( stderr, "Out of memory\n" );
exit( 1 );
}
/* Put a RETN instruction in the buffer */
*buf = '\xc3';
/* Convert the pointer to a function pointer */
func = (fptr)buf;
/* Call the code in the buffer */
func();
/* It worked when the function returns */
itworked();
}
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