libnet and libnet11 conflict

[bahamat@…]

I use both dsniff and arping for work, but dsniff depends on libnet and arping depends on libnet11. Libnet and libnet11 can't be installed simultaneously.

[pmq@…]

Cc'ing the libnet maintainer. Unless someone releases its private dsniff-on-libnet11 patch, we need to fix the ports just like apr/apr0.

[etherflan@…]

Cc Me!

[(none)]

Milestone Port Bugs deleted

[hsivank@…]

Take a look here

[ryandesign (Ryan Carsten Schmidt)]

Replying to bahamat@…:

Libnet and libnet11 can't be installed simultaneously.

For now, I have marked libnet and libnet11 as conflicting in r61736.

[vh3@…]

Cc Me!

[kngspook@…]

Cc Me!

[nerdling (Jeremy Lavergne)]

Have there been updates for packages that depend on libnet so they can handle libnet11? Libnet 1.2 is now available upstream: should I make another (conflicting) libnet12 so that people can upgrade when their packages are ready?

[alexander.janssen@…]

Cc Me!

[alexander.janssen@…]

So now I seemed to have found something odd; libnet and libnids somehow don't work together. When I try linking an application using both, ld complains about unresolved symbols:

Undefined symbols for architecture x86_64:
  "_libnet_build_ipv4", referenced from:
      _nids_killtcp_seq in libnids.a(killtcp.o)
  "_libnet_build_tcp", referenced from:
      _nids_killtcp_seq in libnids.a(killtcp.o)
  "_libnet_init", referenced from:
      _raw_init in libnids.a(killtcp.o)
  "_libnet_write", referenced from:
      _nids_killtcp_seq in libnids.a(killtcp.o)
ld: symbol(s) not found for architecture x86_64

Something's really odd here. The symbols are there though:

$ file libnet.1.dylib
libnet.1.dylib: Mach-O 64-bit x86_64 dynamically linked shared library
delicious:lib ajanssen$ nm libnet.1.dylib | grep libnet_build_tcp
00000000000076a0 T _libnet_build_tcp
0000000000007960 T _libnet_build_tcp_options
000000000000e824 s _libnet_build_tcp_options.padding
delicious:lib ajanssen$ nm libnet.1.dylib | grep libnet_build_ipv4
0000000000004bd0 T _libnet_build_ipv4
0000000000005030 T _libnet_build_ipv4_options
delicious:lib ajanssen$ nm libnet.1.dylib | grep libnet_build_tcp
00000000000076a0 T _libnet_build_tcp
0000000000007960 T _libnet_build_tcp_options
000000000000e824 s _libnet_build_tcp_options.padding
delicious:lib ajanssen$ nm libnet.1.dylib | grep libnet_init
0000000000009af0 T _libnet_init
delicious:lib ajanssen$ nm libnet.1.dylib | grep libnet_write
000000000000c450 T _libnet_write
000000000000c9d0 T _libnet_write_link
000000000000c580 T _libnet_write_raw_ipv4
000000000000c650 T _libnet_write_raw_ipv6

Any idea what's going on here?

P.S.: I have the same issue with both variants, libnet and libnet11.

[neverpanic (Clemens Lang)]

What does your linker line look like? It seems like it's missing -lnet. If it contains -lnet -lnids try making that -lnet -lnids -lnet. Make sure you don't have a copy of libnids or libnet in /usr/local.

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

Since libnet and libnet11 are correctly marked ​as conflicting, and arping and dsniff can now ​be installed simultaneously, the original reason for opening this ticket has been resolved.
Any subsequent issues should probably have their own tickets.