[tex4ht] what would cause " Can't close file `index.tmp' (file is not open)" --- error --- Illegal storage address

[Nasser M. Abbasi]

Hello Karl;

Thanks for finding the problem!

I am OK now. I finally upgraded to TL 2018 and have not
seen this problem again.  So I am all set now.  No more

        Can't close file `index.tmp'

It seems to only happen on TL 2017 and under special cases.


regards,
--Nasser

On 06/30/2018 05:43 PM, Karl Berry wrote:
> Hi Nasser and all,
> 
>      >      --- warning --- Can't close file `index.tmp' (file is not open)
> 
> Fixing this so the program can go on is easy enough; patch below (and
> committed: tex4ht r417 and TL r48117). Clearly this case never came up
> before, since it was dereferencing null pointers all over the place.
> 
> Discerning why the file is already closed at that point would
> be a lot more work, and I didn't try.
> 
> If it is not easy for you to recompile from the TL sources, and you'd
> like a new binary with this change, please remind me what platform
> you're working on nowadays? --thanks for the report, karl.
> 
> 
> --- tex4ht-c.tex	(revision 416)
> +++ tex4ht-c.tex	(working copy)
> @@ -4430,12 +4430,14 @@
>   
>   \<close tex4ht file\><<<
>   if( p == (struct files_rec *)  0 ) bad_special( name );
> +else { /* if p is null, do nothing more */
>   `<fix pointers around file to be closed`>
>   if( opened_files !=  (struct files_rec*) 0 )
>     { if( out_file == p->file )  out_file = opened_files->file; }
>   else out_file = (FILE *) 0;
>   (IGNORED) fclose( p->file );   free((void *)  p->name );
>   free((void *) p );
> +}
>   >>>
>