Date: Thu, 22 Feb 1996 17:06:03 -0800 (PST) From: "Brant Katkansky" <brantk@gatekeeper.atlas.com> To: msmith@atrad.adelaide.edu.au (Michael Smith) Cc: bmk@dtr.com, msmith@atrad.adelaide.edu.au, brantk@gatekeeper.atlas.com, hackers@freebsd.org Subject: Re: need help w/rpc stuff Message-ID: <9602230106.AA01360@billthecat.atlas.com.> In-Reply-To: <199602230030.LAA20596@genesis.atrad.adelaide.edu.au> from "Michael Smith" at Feb 23, 96 11:00:22 am
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>
> bmk@dtr.com stands accused of saying:
> >
> > I'm also having problems compiling some NFS stuff - it compiles and runs
> > under SunOS (4.x and 5.x), SCO, dynix, and dynix/ptx.
> >
> > Unfortunately, there seems to be some structures in
> > /usr/include/nfs/nfs.h which aren't implemented in FreeBSD. I can't be
> > more specific right now, as the machine in question has been shut down
> > for the rest of the morning for emergency A/C repairs in our machine
> > room.
>
> You'll need to be more specific about your problem 8)
OK - keep in mind I'm working under an NDA here, so I can't post the
entire source. Here's a representative sample of what I'm up against:
cc -g -I../include -I/usr/include -DSYSV_IPC -Dfreebsd -c fe_xdr.c
fe_xdr.c: In function `xdr_fattr':
fe_xdr.c:78: dereferencing pointer to incomplete type
fe_xdr.c:80: dereferencing pointer to incomplete type
fe_xdr.c:82: dereferencing pointer to incomplete type
fe_xdr.c:84: dereferencing pointer to incomplete type
fe_xdr.c:86: dereferencing pointer to incomplete type
73:xdr_fattr(xdrsp, fattrp)
74:XDR *xdrsp;
75:struct nfsfattr *fattrp;
76:{
77:
78: if (!xdr_enum(xdrsp, &fattrp->na_type))
79: return(0);
80: if (!xdr_u_long(xdrsp, &fattrp->na_mode))
81: return(0);
82: if (!xdr_u_long(xdrsp, &fattrp->na_nlink))
83: return(0);
84: if (!xdr_u_long(xdrsp, &fattrp->na_uid))
85: return(0);
86: if (!xdr_u_long(xdrsp, &fattrp->na_gid))
87: return(0);
It looks to me like struct type nfsfattr is the culprit - in SunOS
it's defined in <nfs/nfs.h>, but I can find no such user or kernel
stucture in FreeBSD.
Also, the SunOS <nfs/nfs.h> specifies some other structs like nfswriteargs
and nfsreadargs, which I suspect are probably kernel structs in FreeBSD.
There are other problems, I'm sure, but if I can tackle these, the rest
are probably trivial.
> > So I guess I have two more questions:
> >
> > * Is userland NFS code from SunOS generally workable under BSD?
>
> "Generally"
Playing it safe? :)
> > * If so, are there any references to assist in porting?
>
> You just need to be prepared to rework your #includes, and chase stuff that
> SunOS put in the user headers that's really kernel data structures. I'm
> not a real SunOS porting guru, these are just my observations based on
> what I've done.
>
> Sun invented most of the NFS stuff, so we should still be pretty compatible.
Yeah, well, IBM invented the PC, too. :)
--
Brant Katkansky (brantk@atlas.com)
Systems Test Engineer, ADC
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