From: a.biardi@tiscali.it
To: linux-c-programming@vger.kernel.org
Subject: Re: argv[0]
Date: Fri, 24 Feb 2006 14:59:25 +0100 [thread overview]
Message-ID: <200602241459.25477.a.biardi@tiscali.it> (raw)
In-Reply-To: <6a00c8d50601130426u2a9640evc14ee8c3d61c7925@mail.gmail.com>
On Friday 13 January 2006 13:26, you wrote:
> On 1/13/06, a.biardi@tiscali.it <a.biardi@tiscali.it> wrote:
> > Hi,
> >
> > Is there any C function that can tell me what argv[0] is, outside
> > main()?
> >
> > I thought to use getpid() and then look at /proc/<pid>/cmdline
> > but doesn't seem portable. Any hints?
>
> The arguments are pushed on the stack upon process creation. Once
> the process is running there is little chance to get hands on them
> except for the /proc approach.
>
> \Steve
>
Just in case anybody needs it, I think I found something inside
errno.h (GNU-only):
/* The full and simple forms of the name with which the program was
invoked. These variables are set up automatically at startup based
on the value of ARGV[0] (this works only if you use GNU ld). */
extern char *program_invocation_name, *program_invocation_short_name;¶
Bye,
Andrea.
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prev parent reply other threads:[~2006-02-24 13:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-12 23:16 argv[0] a.biardi
2006-01-13 9:52 ` argv[0] wwp
2006-01-13 11:52 ` argv[0] a.biardi
2006-01-13 12:19 ` argv[0] Neil Horman
2006-01-13 12:26 ` argv[0] Steve Graegert
2006-02-24 13:59 ` a.biardi [this message]
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