dpnet: Implement IDirectPlay8Address GetComponentByIndex (try 7)

[Stefan Dösinger]

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Hi,

Thanks again for your work!

Am 2015-02-23 um 08:41 schrieb Alistair Leslie-Hughes:
> +{
> +    if (!This->comp_count)
> +        This->components = heap_alloc( sizeof(struct component *) * This->comp_count+1 );
> +    else
> +        This->components = heap_realloc(This->components, sizeof(struct component *) * This->comp_count+1 );
> +
> +    This->components[This->comp_count] = item;
> +    This->comp_count++;
> +}
This still has no error checks.

> @@ -369,9 +397,48 @@ static HRESULT WINAPI IDirectPlay8AddressImpl_GetComponentByIndex(IDirectPlay8Ad
>          const DWORD dwComponentID, WCHAR *pwszName, DWORD *pdwNameLen, void *pvBuffer,
>          DWORD *pdwBufferSize, DWORD *pdwDataType)
>  {
> ...
> +    if (!pdwNameLen || !pdwBufferSize)
> +        return E_POINTER;
In GetComponentByName you have additional checks for !pvBuffer.

What is pwszName name used for? Are you supposed to write the name of
the retrieved component (with proper length checks)?

>          case DPNA_DATATYPE_STRING:
> +            if(dwDataSize != ((strlenW((WCHAR*)lpvData)+1) * sizeof(WCHAR)))
> +                return DPNERR_INVALIDPARAM;
I expect this also applies to DPNA_DATATYPE_STRING_ANSI. Please move it
to a separate patch (preferably before the GetComponentByIndex
changes), together with the tests for the length check.

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