[bug-gv] Re: Bug#583316: /usr/bin/gv: Insecure gs workaround "gs -P-"

[Markus Steinborn]

address@hidden schrieb:
> Yes that is what I do:
>
> #!/usr/bin/perl --
> #...
> $c = $0;
> $c =~ s/.*\///;
> exec "/usr/bin/$c", '-P-', '-dSAFER', @ARGV;
>
> and my testing suggested it breaks gv.
>    
Well, the DSC parsing seems to be "-dSAFER"-incompatible. But with the 
following settings I can open ps and pdf files - and pdf to postscript 
conversion has sucessfully been tested on an example.

$ cat .gv
GV.gsArguments:         -P- -dFIXEDMEDIA
GV.antialias:           False
GV.infoVerbose:         All
GV.gsInterpreter:       gs
!GV.saveposFilename:    ~/test.gv
GV*international:               False
GV.version:             gv 3.6.7.90

GV.gsCmdConvPDF:        gs -P- -dSAFER -dNOPAUSE -dQUIET -dBATCH 
-sDEVICE=pswrite -sOutputFile=%s -f %s -c save pop quit
GV.gsCmdScanPDF:        gs -P- -dNODISPLAY -dQUIET -sPDFname=%s 
-sDSCname=%s %s pdf2dsc.ps -c quit



So "-P-" may work with GNU gv - but some testing would help before 
changing the defaults.

BTW: I have done my test with ghostscript 8.71.


Greetings from Germany

Markus Steinborn
GNU gv maintainer