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From: ludo@gnu.org (Ludovic Courtès)
To: guile-devel@gnu.org
Subject: Re: "exec" procedures don't handle the optional parameters unbounded situation?
Date: Thu, 15 Dec 2011 20:19:19 +0100	[thread overview]
Message-ID: <877h1xej7s.fsf@gnu.org> (raw)
In-Reply-To: CAPjoZocbzu__+KOmvZf1h9P854HxbAawdR=poM0nHNa9RSi1jg@mail.gmail.com

Hi!

Sorry for the late reply.

Nala Ginrut <nalaginrut@gmail.com> skribis:

> I found "exec" serial procedures didn't check the unbounded optional
> parameters.
> (execlp "ls")  ==> segment fault

What you’re seeing here is SIGABRT, not SIGSEGV, preceded by the message:

  A NULL argv[0] was passed through an exec system call.

That message comes from Gnulib’s ‘set_program_name’ [0], which is used
by all GNU Coreutils program, and which aborts when argv[0] is NULL.

Thanks,
Ludo’.

[0] http://git.savannah.gnu.org/cgit/gnulib.git/tree/lib/progname.c#n53




  reply	other threads:[~2011-12-15 19:19 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-23  9:24 "exec" procedures don't handle the optional parameters unbounded situation? Nala Ginrut
2011-12-15 19:19 ` Ludovic Courtès [this message]
2011-12-16  4:03   ` Nala Ginrut
2011-12-16 23:02     ` Ludovic Courtès
2011-12-17  4:34       ` David Kastrup
2012-01-06 18:02     ` Andy Wingo

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