From owner-freebsd-hackers  Wed Mar 28 22:21:49 2001
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To: "Arthur Munn" <netbsdadvocate@hotmail.com>
Cc: freebsd-hackers@FreeBSD.ORG
Subject: Re: header files for sockets 
In-reply-to: Your message of "Wed, 28 Mar 2001 22:25:30 EST."
             <F260a102Kz6dgo2S3AX0000e901@hotmail.com> 
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Date: Wed, 28 Mar 2001 23:21:44 -0700
From: Drew Eckhardt <drew@PoohSticks.ORG>
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In message <F260a102Kz6dgo2S3AX0000e901@hotmail.com>, netbsdadvocate@hotmail.co
m writes:
>the header files they tell you to include are no longer correct. 

The header files are pretty much standard.

>So 
>what I would like to know is the header files I will need to include to work 
>with sockets. If that is not specific enough, here is a brief summary of the 
>system calls i will need to use:

Most if not all of the relevant system calls are prototyped in 
<sys/socket.h>.  For reasons that made since when cave men wrote code on 
stone tablets, <sys/*> usually don't include <sys/types.h>, so putting that 
first would be a good idea.

Of course, for all properly documented library functions the man pages
give the header files, and you could always type 

    man command

For example

    drew@revolt% man socketpair
    NAME
	 socketpair - create a pair of connected sockets

    LIBRARY
	 Standard C Library (libc, -lc)

    SYNOPSIS
	 #include <sys/types.h>
	 #include <sys/socket.h>

    ... etc.

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