From: Nobuyoshi Nakada <nobu@...>
Date: 2010-05-24T08:07:15+09:00
Subject: [ruby-core:30385] Re: execve still not possible?

Hi,

At Mon, 24 May 2010 01:29:00 +0900,
Hadmut Danisch wrote in [ruby-core:30380]:
> I just tried to call an execve system call from ruby (need to exec one
> of these silly cups printer programs that expect ARGV0 to be different
> from their path), but when doing something like 
> 
> syscall 11 , '/bin/true' , ["true",0].pack('pi') , ['X=1', 0].pack('pi')

system({"X"=>"1"}, %w[/bin/true true]) # only in 1.9:

> Is there any way to call execve from ruby (i.e. execute a program with
> a first parameter different from its path)?

system(%w[/bin/true true]) has been possible since very early
versions, 1.4 at least.

-- 
Nobu Nakada