static int
remov(int n, Rpccall *cmd, Rpccall *reply)
{
Session *s;
Xfile *xp;
Xfid *xf, *newxf;
String elem;
Fid *nfid;
uchar *argptr = cmd->args;
uchar *dataptr = reply->results;
if(n <= FHSIZE)
return garbage(reply, "count too small");
xf = rpc2xfid(cmd, 0);
argptr += FHSIZE;
argptr += string2S(argptr, &elem);
if(argptr != &((uchar *)cmd->args)[n])
return garbage(reply, "bad count");
if(xf == 0)
return error(reply, NFSERR_STALE);
xp = xf->xp;
if(!(xp->qid.type & QTDIR))
return error(reply, NFSERR_NOTDIR);
chat("%s/%.*s...", xp->name, utfnlen(elem.s, elem.n), elem.s);
if(xp->s->noauth == 0 && xp->parent == xp && elem.s[0] == '#')
return error(reply, NFSERR_PERM);
newxf = xfwalkcr(Twalk, xf, &elem, 0);
if(newxf == 0)
return error(reply, NFSERR_NOENT);
s = xp->s;
nfid = newfid(s);
setfid(s, newxf->urfid);
s->f.newfid = nfid - s->fids;
s->f.nwname = 0;
if(xmesg(s, Twalk) < 0){
putfid(s, nfid);
return error(reply, NFSERR_IO);
}
s->f.fid = nfid - s->fids;
if(xmesg(s, Tremove) < 0){
putfid(s, nfid);
return error(reply, NFSERR_PERM);
}
putfid(s, nfid);
xpclear(newxf->xp);
PLONG(NFS_OK);
chat("OK\n");
return dataptr - (uchar *)reply->results;
}
int
clunkfid(Session *s, Fid *f)
{
putfid(s, f);
if(s == 0 || f == 0)
return 0;
s->f.fid = f - s->fids;
return xmesg(s, Tclunk);
}
/* returns 0 if auth succeeded (or unneeded), -1 otherwise */
int
authhostowner(Session *s)
{
Fid *af, *f;
int rv = -1;
int afd;
AuthInfo *ai;
AuthRpc *rpc;
/* get a fid to authenticate over */
f = nil;
af = newfid(s);
s->f.afid = af - s->fids;
s->f.uname = getuser();
s->f.aname = s->spec;
if(xmesg(s, Tauth)){
/* not needed */
rv = 0;
goto out;
}
quotefmtinstall(); /* just in case */
afd = open("/mnt/factotum/rpc", ORDWR);
if(afd < 0){
werrstr("opening /mnt/factotum/rpc: %r");
goto out;
}
rpc = auth_allocrpc(afd);
if(rpc == nil)
goto out;
ai = authproto(s, af, rpc, auth_getkey, "proto=p9any role=client");
if(ai != nil){
rv = 0;
auth_freeAI(ai);
}
auth_freerpc(rpc);
close(afd);
/* try attaching with the afid */
chat("attaching as hostowner...");
f = newfid(s);
s->f.fid = f - s->fids;
s->f.afid = af - s->fids;;
s->f.uname = getuser();
s->f.aname = s->spec;
if(xmesg(s, Tattach) == 0)
rv = 0;
out:
if(af != nil){
putfid(s, af);
s->f.fid = af - s->fids;
xmesg(s, Tclunk);
}
if(f != nil){
putfid(s, f);
s->f.fid = f - s->fids;
xmesg(s, Tclunk);
}
return rv;
}
