Re: Ada/Operating System Interface (OSI)

[Michal Zalewski <lcamtuf@dione.ids.pl>]

On Tue, 15 Aug 2000, Ultor wrote:

> I'm wondering how to execute other process from ADA (I got GNAT). I've
> found "Ada/Operating System Interface (OSI)" which gives ability to
> execute process using Invoke_Process procedure from this package. I
> believe that ther's some standard procedure for executing process in
> ADA95. Could any1 tell me which procedure is that cause i can't find
> it in Reference.

At least under GNAT, you can always use GNAT.OS_Lib.Spawn
procedure. Typical, call looks this way:

with GNAT.OS_Lib;

[...]

  Args : Argument_List (1..10);
  ret  : Boolean;

[...]

  Args (1) := new String'("-l");

  GNAT.OS_Lib.Spawn(
    Program_Name => "/bin/ls",
    Args => args (1..1),
    Success => ret
  )

Unfortunately, I have no idea if there's any portable way to execute
programs on Unix machines within Ada code (and without importing
system() or exec*() functions from C libraries ;).
                   
_______________________________________________________
Michal Zalewski [lcamtuf@tpi.pl] [tp.internet/security]
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