Re: [PATCH 0/1] MR8116: kerberos: Add support for SECBUFFER_STREAM to SpUnsealMessage().

[Hans Leidekker (＠hans)]

Hans Leidekker (@hans) commented about dlls/kerberos/unixlib.c:
> -    DWORD len_data, len_token;
>      int conf_state;
>
> -    len_data = params->data_length;
> -    len_token = params->token_length;
> -
> -    input.length = len_data + len_token;
> -    if (!(input.value = malloc( input.length ))) return SEC_E_INSUFFICIENT_MEMORY;
> -    memcpy( input.value, params->data, len_data );
> -    memcpy( (char *)input.value + len_data, params->token, len_token );
> +    if (params->stream_length)
> +    {
> +        input.length = params->stream_length;
> +        if (!(input.value = malloc( input.length ))) return SEC_E_INSUFFICIENT_MEMORY;
> +        memcpy( input.value, params->stream, params->stream_length );
> +    }
> We can actually avoid the buffer copy in this case.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/8116#note_104377