Date: Tue, 21 Mar 2000 10:53:30 -0800 From: bmah@CA.Sandia.GOV (Bruce A. Mah) To: Yoshinobu Inoue <shin@nd.net.fujitsu.co.jp> Cc: bde@zeta.org.au, nnd@mail.nsk.ru, current@FreeBSD.ORG Subject: Re: 'machine/param.h' required for 'sys/socket.h' Message-ID: <200003211853.e2LIrUg87051@nimitz.ca.sandia.gov> In-Reply-To: <20000322024911Q.shin@nd.net.fujitsu.co.jp> References: <20000322013459L.shin@nd.net.fujitsu.co.jp> <Pine.BSF.4.21.0003220428230.4710-100000@alphplex.bde.org> <20000322024911Q.shin@nd.net.fujitsu.co.jp>
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--==_Exmh_789141986P Content-Type: text/plain; charset=us-ascii If memory serves me right, Yoshinobu Inoue wrote: > > > I feel requesting inclusion of machine/param.h for any apps > > > which use socket is better. But if there are any other smarter > > > solution, please let me know and I'll appreciate it much. > > > > <machine/param.h> should never be included by applications since > > it is an implementation detail. > > > > Specify including <sys/param.h> in apps which use the CMSG*() macros. > > <sys/socket.h> doesn't depend on <*/param.h> unless these macros are used. > > Since these macros are undocumented, applications that use them should > > expect problems :-). > > > > Bruce > > After reading bmah's message, now I am inclined to including > machine/param.h from sys/socket.h for maximum portability, if > there is no spec for it, and if all other platforms doing it. Arrgh. Now it seems I might need to reverse my position. I looked through some code fragments in UNIX Network Programming (Volume 1, Second Edition, pp. 362-365), and there's some precedent for needing <sys/param.h> with the CMSG*() macros. On the other hand, RFC 2292 and draft-ietf-ipngwg-rfc2292bis (the references I was originally working from) don't mention this requirement at all; they just say that CMSG*() are defined with <sys/socket.h>. I'm slightly confused by now. I'm going to send off a note to the authors of draft-ietf-ipngwg-rfc229bis asking for some clarification. In the meantime, maybe we should hold off on doing any changes. Bruce. --==_Exmh_789141986P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 5.0i for non-commercial use MessageID: 8v9hQWl8rwWL3H+0/R4zKr2stejjn8GI iQA/AwUBONfFKdjKMXFboFLDEQIF8wCgqspEwzh/iJt8yOjlp7OO3nNtguYAoJNy PxqIQxugikuNZkB7sJ3YBnUC =5SBz -----END PGP SIGNATURE----- --==_Exmh_789141986P-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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