gpgkey2ssh --help segfaults with assertion failure.

[Wolfgang Glas]

I discovered the program /usr/bin/gpgkey2ssh and tried to find out, what this program does.

Unfortunately, there no manual page for this program and moreover, if I enter

gpgkey2ssh --help

I get the following result:

gpgkey2ssh: gpgkey2ssh.c:270: main: Assertion `(algorithm_id == 1) || (algorithm_id == 17)' failed.
Aborted (core dumped)

So, I've no chance to find out, what this program is supposed to do for me.

  TIA for fixing this issue.

[Philip Tellis (bluesmoon)]

well, apparently the command is used like this:

gpgkey2ssh keyid

so I do this:

gpgkey2ssh $GPGKEY

however, this only prints a dsa public key to stdout, which is not much use if you don't have the corresponding private key.

[Wolfgang Glas (wglas)]

It would common sense, if the program printed some usage information, if it is used in a wrong way.

Coredumping with assertion failure is not the right way to inform the user about the purpose of the program actually being invoked.

[dfc (dfc)]

Was this ever reported upstream? It also core dumps if you just run it with no options:
$ gpgkey2ssh
gpgkey2ssh: gpgkey2ssh.c:255: main: Assertion `argc == 2' failed.

[dfc (dfc)]

There is also a debian bug for the lack of --help / -h:

Debian Bug report logs - #380241
gnupg-agent: gpgkey2ssh has no man page, no --help, no -h and fails with assertions
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=380241

[dfc (dfc)]

This was reported upstream:
http://lists.gnupg.org/pipermail/gnupg-devel/2005-August/022336.html

On Fri, 26 Aug 2005 07:50:09 -0500, Rex Dieter said:

> $gpgkey2ssh
> gpgkey2ssh: gpgkey2ssh.c:255: main: Assertion `argc == 2' failed.

Its a q+d hack without any option parsing or help output. Run it as:

 gpgkey2ssh keyid

Salam-Shalom,

   Werner