static int pipewstat(struct chan *c, uint8_t *dp, int n)
{
ERRSTACK(2);
struct dir *d;
Pipe *p;
int d1;
if (c->qid.type & QTDIR)
error(EPERM, ERROR_FIXME);
p = c->aux;
if (strcmp(current->user, p->user) != 0)
error(EPERM, ERROR_FIXME);
d = kzmalloc(sizeof(*d) + n, 0);
if (waserror()) {
kfree(d);
nexterror();
}
n = convM2D(dp, n, d, (char *)&d[1]);
if (n == 0)
error(ENODATA, ERROR_FIXME);
d1 = NETTYPE(c->qid.path) == Qdata1;
if (!emptystr(d->name)) {
validwstatname(d->name);
if (strlen(d->name) >= KNAMELEN)
error(ENAMETOOLONG, ERROR_FIXME);
if (strncmp(p->pipedir[1 + !d1].name, d->name, KNAMELEN) == 0)
error(EEXIST, ERROR_FIXME);
strncpy(p->pipedir[1 + d1].name, d->name, KNAMELEN);
}
if (d->mode != ~0UL)
p->pipedir[d1 + 1].perm = d->mode & 0777;
poperror();
kfree(d);
return n;
}
static int
pipewstat(Chan *c, uchar *dp, int n)
{
Dir *d;
Pipe *p;
int d1;
if (c->qid.type&QTDIR)
error(Eperm);
p = c->aux;
if(strcmp(up->env->user, p->user) != 0)
error(Eperm);
d = smalloc(sizeof(*d)+n);
if(waserror()){
free(d);
nexterror();
}
n = convM2D(dp, n, d, (char*)&d[1]);
if(n == 0)
error(Eshortstat);
d1 = NETTYPE(c->qid.path) == Qdata1;
if(!emptystr(d->name)){
validwstatname(d->name);
if(strlen(d->name) >= KNAMELEN)
error(Efilename);
if(strcmp(p->pipedir[1+!d1].name, d->name) == 0)
error(Eexist);
kstrcpy(p->pipedir[1+d1].name, d->name, KNAMELEN);
}
if(d->mode != ~0U)
p->pipedir[d1 + 1].perm = d->mode & 0777;
poperror();
free(d);
return n;
}
static int
srvwstat(Chan *c, uchar *dp, int n)
{
Dir *d;
SrvFile *sf, *f;
sf = c->aux;
if(strcmp(up->env->user, sf->user) != 0)
error(Eperm);
d = smalloc(sizeof(*d)+n);
if(waserror()){
free(d);
nexterror();
}
n = convM2D(dp, n, d, (char*)&d[1]);
if(n == 0)
error(Eshortstat);
if(!emptystr(d->name)){
if(sf->dir == nil)
error(Eperm);
validwstatname(d->name);
qlock(&dev.l);
for(f = sf->dir; f != nil; f = f->entry)
if(strcmp(f->name, d->name) == 0){
qunlock(&dev.l);
error(Eexist);
}
kstrdup(&sf->name, d->name);
qunlock(&dev.l);
}
if(d->mode != ~0UL)
sf->perm = d->mode & (DMEXCL|DMAPPEND|0777);
if(d->length != (vlong)-1)
sf->length = d->length;
poperror();
free(d);
return n;
}