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/*
Copyright (C) 1994 Free Software Foundation, Inc.
Written by Michael I. Bushnell.
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
The GNU Hurd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "trans.h"
/* Implement fshelp_fetch_root; see <hurd/fshelp.h> for the description. */
error_t
fshelp_fetch_root (struct trans_link *link, mach_port_t *cntl,
int passive, error_t (*passive_fn) (char **, u_int *),
void *dirpt, void *nodept,
mach_port_t (*genpt_fn) (mach_port_t),
struct mutex *unlock, uid_t uid, gid_t gid)
{
mach_port_t cwdirpt, nodept;
char buf[1000];
char *bufp = buf;
u_int buflen = 1000;
mutex_lock (&link->lock);
if (!passive && link->control == MACH_PORT_NULL)
{
mutex_unlock (&link->lock);
return 0;
}
cwdirpt = (*genpt_fn)(dirpt);
if (link->control == MACH_PORT_NULL)
{
/* Start passive translator */
nodept = (*genpt_fn)(nodept);
error = (*passive_fn) (&bufp, buflen);
if (error)
{
mutex_unlock (&link->lock);
return error;
}
mutex_unlock (unlock);
error = fshelp_start_translator (link, bufp, buflen, cwdirpt,
nodept, uid, gid);
if (bufp != buf)
vm_deallocate (mach_task_self (), (vm_address_t) bufp, buflen);
if (error)
return error;
}
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