Chapter 1 - Introduction to NetX Duo BSD

The BSD Socket API Compliancy Wrapper supports some of the basic BSD Socket API calls, with some limitations and utilizes NetX Duo primitives underneath.

BSD Socket API Compliancy Wrapper Source

The Wrapper source code is designed for simplicity and is comprised of two files, namely nxd_bsd.h and nxd_bsd.c. The nxd_bsd.h file defines all the necessary BSD Socket API wrapper constants and subroutine prototypes, while nxd_bsd.c contains the actual BSD Socket API compatibility source code. These Wrapper source files are common to all NetX Duo support packages.

The package consists of:

• nxd_bsd.c: Wrapper source code
• nxd_bsd.h: Main header file

Sample demo programs:

• bsd_demo_udp.c: Demo with two UDP peers (IPv4 only)
• bsd_demo_tcp.c: Demo with a single TCP server and client
• bsd_demo_raw.c: Demo with two RAW peers