wireshark  3.2.12
About: Wireshark is a network protocol analyzer. It lets you capture and interactively browse the traffic running on a computer network. Old stable release.
  Fossies Dox: wireshark-3.2.12.tar.xz  ("unofficial" and yet experimental doxygen-generated source code documentation)  

Wireshark API Reference

Introduction

This is the Wireshark documentation.