From owner-freebsd-hackers  Mon Aug 17 06:49:26 1998
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To: Didier Derny <didier@omnix.net>
cc: hackers@FreeBSD.ORG
Subject: Re: Yard/FreeBSD Problem (fwd) 
In-reply-to: Your message of "Mon, 17 Aug 1998 14:18:01 +0200."
             <Pine.BSF.3.96.980817141225.25770A-100000@omnix.net> 
From: David Greenman <dg@root.com>
Reply-To: dg@root.com
Date: Mon, 17 Aug 1998 06:48:03 -0700
Sender: owner-freebsd-hackers@FreeBSD.ORG
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>and this is the server:
>
>===============================
>   
>        if ((s = socket(AF_INET,SOCK_STREAM,0)) < 0)
>        {
>                fprintf(stderr,"server: socket() failed. errno = %d\n",errno);
>                netlog("server: socket() failed. errno = %d\n",errno);
>                exit(1);
>        }
>
>        if ((sopt = getenv("YARDTCPNODELAY")))
>        {
>                int flag = 1;
>        
>                printf("Using socket option TCP_NODELAY to %d\n",flag);
>                if (setsockopt(s, IPPROTO_TCP, TCP_NODELAY,(char*)&flag,sizeof(i
>nt)) < 0)
>                {
>                        fprintf(stderr,"server: setsockopt() failed. errno = %d\
>n",errno);
>                        netlog("server: setsockopt() failed. errno = %d\n",errno
>);
>                }
>        }

   For the server, "s" above appears to be the unconnected (listen) socket.
The TCP_NODELAY option is not propagated across to accept()ed sockets, so
you must do the setsockopt on those, not on the listen socket.

-DG

David Greenman
Co-founder/Principal Architect, The FreeBSD Project

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