[PATCH 02/12] msacm32: Add invalid parameter checks for acmFormatDetails().

[Andrew Eikum]

On Tue, Jun 06, 2017 at 03:14:51PM -0500, Zebediah Figura wrote:
> @@ -376,10 +377,13 @@ MMRESULT WINAPI acmFormatDetailsA(HACMDRIVER had, PACMFORMATDETAILSA pafd,
>      ACMFORMATDETAILSW	afdw;
>      MMRESULT		mmr;
>  
> -    memset(&afdw, 0, sizeof(afdw));
> +    if (!pafd)
> +        return MMSYSERR_INVALPARAM;
> +
>      afdw.cbStruct = sizeof(afdw);
>      afdw.dwFormatIndex = pafd->dwFormatIndex;
>      afdw.dwFormatTag = pafd->dwFormatTag;
> +    afdw.fdwSupport = pafd->fdwSupport;
>      afdw.pwfx = pafd->pwfx;
>      afdw.cbwfx = pafd->cbwfx;
>  

Like before, is there a reason to no longer zero this struct?

> @@ -430,7 +447,14 @@ MMRESULT WINAPI acmFormatDetailsW(HACMDRIVER had, PACMFORMATDETAILSW pafd, DWORD
>  	}
>  	break;
>      case ACM_FORMATDETAILSF_INDEX:
> -	/* should check pafd->dwFormatIndex < aftd->cStandardFormats */
> +        aftd.cbStruct = sizeof(aftd);
> +        aftd.dwFormatTag = pafd->dwFormatTag;
> +        acmFormatTagDetailsW(had, &aftd, ACM_FORMATTAGDETAILSF_FORMATTAG);
> +        if (pafd->dwFormatIndex >= aftd.cStandardFormats)
> +        {
> +            mmr = MMSYSERR_INVALPARAM;
> +            break;
> +        }

Please add error checking for acmFormatTagDetailsW.

The next two patches in the sequence fail on the test bot, so I
stopped reviewing here. It's common for APIs to return different error
codes on different Windows versions, so you likely just need to accept
either code in your ok() checks.

Andrew