Re: Building tcpdump with static libraries

[Ajith Adapa <adapa.ajith () gmail com>]

Hi,

I am currently building tcpdump on Ubuntu 10.04 - 03 edition.

$ ./tcpdump -h
tcpdump version 4.4.0-PRE_GIT_2012_05_28
libpcap version 1.0.0
Usage: tcpdump [-aAbdDefhHIKlLnNOpqRStuUvxX] [ -B size ] [ -c count ]
        [ -C file_size ] [ -E algo:secret ] [ -F file ] [ -G seconds ]
        [ -i interface ] [ -M secret ]
        [ -r file ] [ -s snaplen ] [ -T type ] [ -w file ]
        [ -W filecount ] [ -y datalinktype ] [ -z command ]
        [ -Z user ] [ expression ]

I even tried adding -static flag but I have got errors regarding dlopen and
dlclose. Not sure of exact error but will try again the same.

Regards,
Ajith
--------------------------------------------
codingfreak.in <http://www.codingfreak.in>


On Mon, May 28, 2012 at 1:56 PM, Guy Harris <guy () alum mit edu> wrote:

> On May 27, 2012, at 11:31 PM, Artur Kielak wrote:
>
> > I think than You run older version tcpdump:
>
> You can't use ldd to find out the version of tcpdump; you have to run
> "tcpdump -h" to get the version of tcpdump.
>
> > This is the answer:
> > libpcap.so.0.8 => /usr/lib/libpcap.so.0.8 (0x002c9000)
> > Linked to old version.
>
> Just because the shared library file happens to end with ".0.8", that
> doesn't mean that it's version 0.8, or version 0.8.x for any value of x, of
> libpcap.  I don't know what distribution Ajith is using, but, for example,
> Debian still calls the shared library "libpcap.so.0.8" even though it's
> based, presumably, on libpcap 1.1.1 in stable:
>
>        http://packages.debian.org/stable/libs/libpcap0.8
>
> and libpcap 1.2.1 in testing:
>
>        http://packages.debian.org/testing/libs/libpcap0.8
>
> and unstable:
>
>        http://packages.debian.org/unstable/libs/libpcap0.8
>
> and Ubuntu, being Debian-based, does the same.  Presumably the version
> number didn't change because the binary interface to the library hasn't
> changed in a backwards-incompatible fashion for ages (new routines and
> other new capabilities have been added, so the binary of an app built with
> a *later* shared version of the library won't work with an *earlier* shared
> version of the library if they use those new routines or capabilities, but,
> modulo library bugs, the binary of an app built with an *earlier* shared
> version of the library should work with a *later* shared version of the
> library).-
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