No, this pipe/fork/dup2/exec is used in App Store apps - iSSH is an example as 
it used its separate PuTTY executable. Maybe straight fork() is not available 
but is there some replacement like posix_spawn()? iOS itself need some sort of 
mechanism to fork/exec or there will be no apps.

On Oct 22, 2013, at 10:56, Jens Alfke <j...@mooseyard.com> wrote:

> 
> On Oct 21, 2013, at 7:02 PM, ChanMaxthon <xcvi...@me.com> wrote:
> 
>> 2) You can still use classic UNIX function calls to pipe/fork/dup2/exec
> 
> I think this is another of those “…ok, only if you jailbreak your device or 
> maybe if you’re building an enterprise-only app” things, right? You should 
> really make that clear, because I bet the vast majority of people here are 
> writing for the App Store.
> 
> —Jens

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