|Subject:||Re: [bug-gv] possible bug gv - won't open file|
|Date:||Mon, 1 Nov 2021 18:24:33 +0000|
> The --nosafer option is absent from the 9.55.0 version that runs on my MacBook Air under Catalina.
--safer and --nosafer are options to gv that control whether gv passes -dSAFER or -dNOSAFER to gs.
The default safer setting for gv is the value of GV.gsSafer in .gv in your $HOME login directory.
Something is wrong if gs is seeing --safer or --nosafer instead of -dSAFER or -dNOSAFER.
Check that you did not replace -dSAFER with --nosafer in the command line that gv sends to gs in State -> Ghostscript Options ...
From: M B <firstname.lastname@example.org>
Sent: Monday, November 1, 2021 6:20 AM
To: William Bader <email@example.com>
Cc: firstname.lastname@example.org <email@example.com>
Subject: Re: [bug-gv] possible bug gv - won't open file
just a note to report that the www.brew.sh "Homebrew The Missing
Package Manager for macOS (or Linux)" installed version of gs does run
with -dSAFER as default.
The --nosafer option is absent from the 9.55.0 version that runs on my
MacBook Air under Catalina.
% man gs
revealed that the option has been renamed to -dNOSAFER
This option appears to pass successfully through ps2pdf.
Is it possible to run an alias or a flag in .zshrc to alter the
default -dSAFER behaviour?
On Sat, Feb 25, 2017 at 9:56 PM William Bader <firstname.lastname@example.org> wrote:
> gv is only showing the error reported by gs.
> You can experiment with commands like
> gs -sDEVICE=nullpage -dNOPAUSE -dSAFER test.ps -c quit
> When gs blocks a file access due to -dSAFER, it should report /invalidfileaccess in --file--
> When gs can not open a file, it should report Error: /undefinedfilename in --file--
> Are you sure that you did not change anything else, for example, the search path that gs uses?
> The command 'gs -h' shows the gs search path.
> Also, your test file only loads a font. If you want to write text in the font, you should use a sequence like '/Times-Roman findfont 24 scalefont setfont'
> Regards, William
> From: bug-gv <email@example.com> on behalf of M B <firstname.lastname@example.org>
> Sent: Saturday, February 25, 2017 1:01 PM
> To: Markus Steinborn
> Cc: email@example.com
> Subject: Re: [bug-gv] possible bug gv - won't open file
> Hello all,
> thanks to all who replied about the "-dSAFER" feature, and how to defeat it.
> It turns out that command-line switch "--nosafer" also works.
> Attached are screenshot png images from my computer which detail the
> behaviour of gv under various conditions. The last attachment is the
> file "test.ps".
> Figure 1 shows the "standard" -dSAFER behaviour.
> Figure 2 shows the "--nosafer" behaviour. "georgia.ttf" cannot be
> found, but it is located in the CWD. Note the difference in error
> message content between Fig 1 and Fig 2.
> Figure 3 shows the "--nosafer" behaviour with the PWD pre-pended to
> the filename. Surprisingly, this works as expected.
> Figure 4 shows the "--nosafer" behaviour with filename "./georgia.ttf"
> as argument. It fails, just as in Fig 2.
> I would argue that Figs 2 and 4 ought to be similar to Fig 3, and that
> the behaviour is not a feature.
> Thanks to any and all for the help.
> On 2/23/17, Markus Steinborn <firstname.lastname@example.org> wrote:
> > Hello,
> > Nuno Silva wrote:
> >> Hello,
> >> From what I can see, gv seems to have a gsSafer resource, so you can try
> >> adding
> >> gv.gsSafer: False
> >> to $HOME/.Xresources or $HOME/.Xdefaults
> > Or add that line to an existing ~/.gv (can be created by saving settings
> > either in GV options or ghostscript options.
> > Greetings
> > Markus Steinborn
> > GNU gv maintainer
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