[Help-gnutls] Re: gnutls with pgp

[dellanna at csp.it]

Ok,
now, if I run  cc -ex-serv-anon ex-serv-anon.c -I/usr/lib/ -L /usr/lib/ -lgnutls
(for server with anonymous authentication) it work correctly...the output is the
following:

Server ready. Listening to port '5556'

But if I run cc -ex-client1 ex-client1.c -I/usr/lib/ -L /usr/lib/ -lgnutls on
client machine (for client anonymous) it return the following error:
_______________________________________________________________
/usr/bin/ld: warning: cannot find entry symbol x-client1; defaulting to
0000000008048908
/tmp/ccbQ8aPE.o: In function `main':ex-client1.c:(.text+0x97): undefined
reference to `tcp_connect'
:ex-client1.c:(.text+0x1fd): undefined reference to `tcp_close'
collect2: ld returned 1 exit status
_______________________________________________________________

What is the problem for you?

Simone.

Scrive Simon Josefsson <simon at josefsson.org>:

> dellanna at csp.it writes:
>
> > Hi,
> > I installed gnutls with Synaptic Package Manager ( in ubuntu 6.06) and I
> don't
> > know what is gnutls library directory...
>
> Then it is installed in the default path, /usr/lib.  You don't have to
> specify the -I or -L parameters at all.  Just add "-lgnutls" when
> building it.
>
> > If I download gnutls from ftp://ftp.gnupg.org/gcrypt/alpha/gnutls/
> > what is the packet I need to use gnutls in my applications?
> > In manual there aren't instructions releted to configuration of my
> environment.
> > Can you help me, please?
>
> See the file INSTALL, but if GnuTLS comes with your distribution, you
> don't need to build it yourself.
>
> /Simon
>
> > Simone.
> >
> > Scrive Simon Josefsson <simon at josefsson.org>:
> >
> >> dellanna at csp.it writes:
> >>
> >> > Ok,
> >> > but if I try to compiler the example on manual "Echo Server with
> anonymous
> >> > authentication" with command gcc, it return something like:
> >> > "server.c:(.text+0x2e): undefined reference to
> >> `gnutls_set_default_priority'"
> >> > this function is in the package <gnutls/gnutls.h>.
> >> > In this example I write #include <gnutls/gnutls.h> . There is something
> to
> >> > configure before gnutls work correctly?
> >>
> >> Did you forget to link the program with the gnutls library?  You'll
> >> need to compile it using something like this:
> >>
> >> cc -o foo foo.c -I/path/to/gnutls/include -L/path/to/gnutls/lib -lgnutls
> >>
> >> Alternatively, if you built GnuTLS yourself, invoke 'make' in the
> >> doc/examples/ directory.  The examples are built when you build
> >> GnuTLS.
> >>
> >> /Simon
> >>
> >> > Simone.
> >> >
> >> > Scrive Simon Josefsson <simon at josefsson.org>:
> >> >
> >> >> dellanna at csp.it writes:
> >> >>
> >> >> > Hi all,
> >> >> > I should implement autenthication inside of web application with
> gnutls.
> >> >> > I should use OpenPGP inside TLS connection (I do not use certificate
> >> >> X.509).
> >> >> > It is possible in GnuTLS, but can someone indicate me any reference
> >> guide
> >> >> (with
> >> >> > example server-client)?
> >> >>
> >> >> Hi!  Yes, that should be possible.  There are example code for a
> >> >> server in the GnuTLS manual:
> >> >>
> >> >>
> >> >
> >>
> >
>
http://www.gnu.org/software/gnutls/manual/html_node/Echo-Server-with-OpenPGP-authentication.html
> >> >>
> >> >> There are no explicit examples for OpenPGP clients, but modifying the
> >> >> standard X.509 example:
> >> >>
> >> >>
> >> >
> >>
> >
>
http://www.gnu.org/software/gnutls/manual/html_node/Simple-client-example-with-X_002e509-certificate-support.html
> >> >>
> >> >> using the hints from:
> >> >>
> >> >>
> >> >
> >>
> >
>
http://www.gnu.org/software/gnutls/manual/html_node/Certificate-authentication.html
> >> >>
> >> >> should not be impossible.
> >> >>
> >> >> Note that this part of GnuTLS is not widely used, so it isn't unlikely
> >> >> that you run into problems.  Let us know how it works for you!
> >> >>
> >> >> /Simon
> >> >>
> >> >>
> >> >
> >> >
> >> >
> >> >
> >> > ----------------------------------------------------------------
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> >>
> >>
> >
> >
> >
> >
> > ----------------------------------------------------------------
> > This message was sent using IMP, the Internet Messaging Program.
>
>




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