dnscap README

Linking with libbind

If you plan to use dnscap's -x/-X features, then you might need to have libbind installed. These features use functions such as ns_parserr(). On some systems these functions will be found in libresolv. If not, then you might need to install libbind. I suggest first building dnscap on your system as-is, then run

$ ./dnscap -x foo

If you see an error, install libbind either from your OS package system or by downloading the source from http://www.isc.org/downloads/current

64-bit libraries

If you need to link against 64-bit libraries found in non-standard locations, provide the location by setting LDFLAGS before running configure:

$ env LDFLAGS=-L/usr/lib64 ./configure

FreeBSD (and other BSDs?)

If you've installed libbind for -x/-X then it probably went into /usr/local and you'll need to tell configure how to find it:

$ env CFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib ./configure

Also note that we have observed significant memory leaks on FreeBSD (7.2) when using -x/-X. To rectify:

1. cd /usr/ports/dns/libbind
2. make config
3. de-select "Compile with thread support"
4. reinstall the libbind port
5. recompile and install dnscap