static int32_t
wstat(Chan* c, uint8_t* p, usize n)
{
Proc *up = externup();
int32_t l;
usize namelen;
if(waserror()){
cclose(c);
nexterror();
}
/*
* Renaming mount points is disallowed to avoid surprises
* (which should be renamed? the mount point or the mounted Chan?).
*/
if(c->ismtpt){
dirname(p, &namelen);
if(namelen)
nameerror(chanpath(c), Eismtpt);
}
l = c->dev->wstat(c, p, n);
poperror();
cclose(c);
return l;
}
static long
wstat(Chan *c, uchar *d, int nd)
{
long l;
int namelen;
if(waserror()){
cclose(c);
nexterror();
}
if(c->ismtpt){
/*
* Renaming mount points is disallowed to avoid surprises
* (which should be renamed? the mount point or the mounted Chan?).
*/
dirname(d, &namelen);
if(namelen)
nameerror(chanpath(c), Eismtpt);
}
l = devtab[c->type]->wstat(c, d, nd);
poperror();
cclose(c);
return l;
}
