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Subject: Re: [boost] [GSoC] Some Ideas about the Boost.Process
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2010-03-24 15:35:37

Felipe Tanus wrote:
> On Wed, Mar 24, 2010 at 3:34 PM, John B. Turpish
> <jbturp_at_[hidden]> wrote:
> > [...] but I could
> > see reasons why someone would intentionally mess with argv[0]. Maybe
> > support the current API and add a convenience function?
> I can't see why someone would mess with argv[0]. Considering that
> there is a motive to do that, your suggestion would fit perfectly. Can
> you please give me an example?


The reasons come down to making the process look different to ps or similar tools, whether to remove path information, indicate process state, hide the real process name for (weak) security reasons, or make a process reveal its real purpose. In the latter case, I mean changing an interpreter's argv[0] to something that relates to the script it is interpreting.

Perl allows modifying $0 for example, on many platforms anyway.

None of the foregoing necessarily justifies allowing such manipulation in the Process library.

Rob Stewart robert.stewart_at_[hidden]
Software Engineer, Core Software using std::disclaimer;
Susquehanna International Group, LLP

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