Subject: Re: bug#33133: 26.1.50; zlib-decompress-region too rigid

From: Katsumi Yamaoka <[email-masked]>
Date: Wed, 24 Oct 2018 10:16:16 +0900

On Tue, 23 Oct 2018 20:26:59 -0400, Noam Postavsky wrote:
> We could have zlib-decompress-region ignore unexpected eof as well,
> e.g., the below (though it should obviously be enhanced to depend on a
> new parameter):

> --- i/src/decompress.c
> +++ w/src/decompress.c
> @@ -206,7 +206,7 @@ DEFUN ("zlib-decompress-region", Fzlib_decompress_region,

>    while (inflate_status == Z_OK);

> -  if (inflate_status != Z_STREAM_END)
> +  if (inflate_status != Z_STREAM_END && inflate_status != Z_BUF_ERROR)
>      return unbind_to (count, Qnil);

>    unwind_data.start = 0;

I confirmed that it makes it work for the corrupted web site in
question.  Thank you!