From owner-freebsd-net@FreeBSD.ORG  Wed Mar 10 15:13:47 2010
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Date: Wed, 10 Mar 2010 15:51:59 +0100
Message-ID: <b2ecfd381003100651s774dd6dcy63c69008088ca826@mail.gmail.com>
From: serena zanetta <sz3003@gmail.com>
To: freebsd-net@freebsd.org
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Subject: Permission denied error
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Hi,

I=92ve got a problem with the packet injection. I=92ve tried to send a pack=
et by
the means of the nemesis suite. Everything works fine since I type the
command

=93nemesis udp =85=94

on the command line.



If I tried to call the same command via the PHP exec()

exec("nemesis udp $message_to_send",$response);

the nemesis packet injection failed: =93/dev/bpf0: Permission denied=94 !



sprintf(device, "/dev/bpf%d", i);

fd =3D open(device, O_RDWR);



Gives  fd =3D -1.



Can anybody help me?

Serena