Install libcidr-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libcidr-dev
Description:
IP addresses and netblocks manipulation library
libcidr is a C library implementing a variety of functions to manipulate IP addresses and netblocks. It handles both IPv4 and IPv6 networks, will transform them to and from text strings in a variety of formats, cram them into and lever them out of in_addr and in6_addr structures, and give you all sorts of stats about them. Functions are provided also to tell you a few things about the network any given CIDR block is in, what its parent and child networks are, and so on. If you're really nice, may even cook you breakfast. . This package contains include files and development documentation.
Homepage: https://www.over-yonder.net/~fullermd/projects/libcidr
Version: 1.2.3-2
Section: universe/libdevel