How to write and read on network interfaces?

[fabrizio]

I've to write an applications which emulates the network, so this
application must write and read all the data passing on network
interfaces like eth0 and tap0(virtual ethernet interface). How can I
do?
I've configured tap0 with

debian:/home/fabrizio# tunctl -u root
Set 'tap0' persistent and owned by uid 0

so I don't have the device file "/dev/tap0" to pass to function open(),
however eth0 doesn't have the node /dev/eth0.
Thanks.
Greetings

[mlimber]

fabrizio wrote:

I've to write an applications which emulates the network, so this
application must write and read all the data passing on network
interfaces like eth0 and tap0(virtual ethernet interface). How can I
do?
I've configured tap0 with

debian:/home/fabrizio# tunctl -u root
Set 'tap0' persistent and owned by uid 0

so I don't have the device file "/dev/tap0" to pass to function open(),
however eth0 doesn't have the node /dev/eth0.
Thanks.
Greetings

You should ask this question in a Linux newsgroup as it is off-topic
here. See the FAQ for what is on-topic and for some suggestions of
where to post:

http://www.parashift.com/c++-faq-lit...t.html#faq-5.9

Cheers! --M

[fabrizio]

Maybe you didn't understand, but I've to write a C++ application which
should do what write above. Thanks however.

[mlimber]

fabrizio wrote:

Maybe you didn't understand, but I've to write a C++ application which
should do what write above. Thanks however.

An excerpt from the link I posted on what is on-topic in this C++
*language* newsgroup:

"[Y]our question must be answerable by looking into the C++ language
definition as determined by the ISO/ANSI C++ Standard document, and by
planned extensions and adjustments. Operating-specific questions (e.g.,
about Windows NT / 95 / 3.x, UNIX, etc.) should go to an
operating-system-specific newsgroup (see below), *not* to
comp.lang.c++."

That fact that your application is in C++ does not mean it is
necessarily on-topic here, and unless I do misunderstand you, yours is
an OS-specific issue, not a C++ *language* issue.

Cheers! --M

[mlimber]

mlimber wrote:

fabrizio wrote:

Maybe you didn't understand, but I've to write a C++ application which
should do what write above. Thanks however.

An excerpt from the link I posted on what is on-topic in this C++
*language* newsgroup:

"[Y]our question must be answerable by looking into the C++ language
definition as determined by the ISO/ANSI C++ Standard document, and by
planned extensions and adjustments. Operating-specific questions (e.g.,
about Windows NT / 95 / 3.x, UNIX, etc.) should go to an
operating-system-specific newsgroup (see below), *not* to
comp.lang.c++."

That fact that your application is in C++ does not mean it is
necessarily on-topic here, and unless I do misunderstand you, yours is
an OS-specific issue, not a C++ *language* issue.

Cheers! --M

As for a C++ answer, how about the one you already got:

http://groups.google.com/group/comp....43134853383fef

Cheers! --M

[Niklas Norrthon]

"fabrizio" <fa*************@gmail.com> writes:

I've to write an applications which emulates the network, so this
application must write and read all the data passing on network
interfaces like eth0 and tap0(virtual ethernet interface). How can I
do?
I've configured tap0 with

debian:/home/fabrizio# tunctl -u root
Set 'tap0' persistent and owned by uid 0

so I don't have the device file "/dev/tap0" to pass to function open(),
however eth0 doesn't have the node /dev/eth0.

And your C++ question is...?

Perhaps you meant to post to comp.unix.programmer.

/Niklas Norrthon

[Larry I Smith]

fabrizio wrote:

I've to write an applications which emulates the network, so this
application must write and read all the data passing on network
interfaces like eth0 and tap0(virtual ethernet interface). How can I
do?
I've configured tap0 with

debian:/home/fabrizio# tunctl -u root
Set 'tap0' persistent and owned by uid 0

so I don't have the device file "/dev/tap0" to pass to function open(),
however eth0 doesn't have the node /dev/eth0.
Thanks.
Greetings

You may get some answers if you post your question to
this newsgroup:

comp.os.linux.development.system

Regards,
Larry