Date: Tue, 16 Sep 1997 10:22:38 +0930 From: Mike Smith <mike@smith.net.au> To: Sunthiti Patchararungruang <stt@casper.cpe.ku.ac.th> Cc: hackers@freebsd.org Subject: Re: Problem about BPF Message-ID: <199709160052.KAA00498@word.smith.net.au> In-Reply-To: Your message of "Tue, 16 Sep 1997 01:07:57 %2B0700." <Pine.BSF.3.96.970916010431.16587A-100000@casper.cpe.ku.ac.th>
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> Dear every body, > > If I want to send a frame to a BPF device, can I use more than one > "write" commands to complete all fields of a packet? (i.e. first write for > ether_header and another write for IP packet). No. Each write must be a complete datagram. Think about it for a moment - how else could the kernel know when you had given it enough and send the packet? mike
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