libcod on Arch Linux

[Mitch]

Can you try to add many normal printf's to this function in https://github.com/kungfooman/libcod...master/gsc.cpp ?

		int cdecl_injected_closer()
{
    int function;
    int playerid; 
	

printf by printf you will get nearer to the buggy function.

It crashes here:

		printf("scriptengine> test b3\n");
    
    
    if (!stackGetParamInt(0, &function))
    {
        printf("scriptengine> ERROR: closer(): param \"function\"[0] has to be an integer!\n");
        return 0;
    }

    printf("scriptengine> test b4\n"); 
	

It only shows 'scriptengine> test b3' and not the other 2 messages. (commenting the printf ...ERROR: closer().. out doesn't show the 'test b4' message.)

[kung foo man]

The function is in https://github.com/kungfooman/libcod...master/gsc.cpp

		// todo: check if the parameter really exists (number_of_params)
int stackGetParamInt(int param, int *value)
{
    //printf("stackGetParamInt() start...");
    aStackElement *scriptStack = *(aStackElement**)getStack();
    aStackElement *arg = scriptStack - param;
    if (arg->type != STACK_INT)
        return 0;
    *value = (int)arg->offsetData;
    //printf("... end\n");
    return 1;
} 
	

Now check in detail where it is crashing

[Mitch]

The function is in https://github.com/kungfooman/libcod...master/gsc.cpp

		// todo: check if the parameter really exists (number_of_params)
int stackGetParamInt(int param, int *value)
{
    //printf("stackGetParamInt() start...");
    aStackElement *scriptStack = *(aStackElement**)getStack();
    aStackElement *arg = scriptStack - param;
    if (arg->type != STACK_INT)
        return 0;
    *value = (int)arg->offsetData;
    //printf("... end\n");
    return 1;
} 
	

Now check in detail where it is crashing

		int stackGetParamInt(int param, int *value)
{
    //printf("stackGetParamInt() start...");
    printf("scriptengine> test c1\n");
    aStackElement *scriptStack = *(aStackElement**)getStack();
    printf("scriptengine> test c2\n");
    aStackElement *arg = scriptStack - param;
    printf("scriptengine> test c3\n");
    if (arg->type != STACK_INT)
        return 0;
    printf("scriptengine> test c4\n");
    *value = (int)arg->offsetData;
    printf("scriptengine> test c5\n");
    //printf("... end\n");
    return 1;
} 
	

It prints c1, c2 and c3.