Date: Fri, 29 Apr 2005 19:44:05 -0700
From: Jeff Makey <jeff@sdsc.edu>

The patch included below adds regular expression processing to allow
grepcidr to find IP addresses anywhere on the input.  Tested against
the README file shipped with grepcidr-1.3, the first command below
shows one line of output and the second correctly shows none:

 grepcidr 192.168.0.0/20 README
 grepcidr 192.168.16.0/20 README

My changes work on Red Hat Linux 9.0, Sun Solaris, SGI IRIX, and IBM
AIX.  It should be possible to use regular expression processing and
avoid calling sscanf() in the ip_to_uint() function, but it may not be
worth the effort.

Note that for a number the source lines the only thing I changed is
the indenting.  After applying the patch use "diff -w" to see just the
coding changes.

Thanks for writing grepcidr.  Feel free to include this change in the
next release.

                          :: Jeff Makey
                             jeff@sdsc.edu