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/* libdiskfs implementation of fs.defs: dir_mkfile
Copyright (C) 1994,95,96,97,2002 Free Software Foundation, Inc.
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 the GNU Hurd; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Written by Michael I. Bushnell. */
#include "priv.h"
#include "fs_S.h"
#include <fcntl.h>
/* Implement dir_mkfile as described in <hurd/fs.defs>. */
kern_return_t
diskfs_S_dir_mkfile (struct protid *cred,
int flags,
mode_t mode,
mach_port_t *newnode,
mach_msg_type_name_t *newnodetype)
{
struct node *dnp, *np;
error_t err;
struct protid *newpi;
struct peropen *newpo;
if (!cred)
return EOPNOTSUPP;
if (diskfs_check_readonly ())
return EROFS;
dnp = cred->po->np;
mutex_lock (&dnp->lock);
if (!S_ISDIR (dnp->dn_stat.st_mode))
{
mutex_unlock (&dnp->lock);
return ENOTDIR;
}
err = fshelp_access (&dnp->dn_stat, S_IWRITE, cred->user);
if (err)
{
mutex_unlock (&dnp->lock);
return err;
}
mode &= ~(S_IFMT | S_ISPARE | S_ISVTX | S_ITRANS);
mode |= S_IFREG;
err = diskfs_create_node (dnp, 0, mode, &np, cred, 0);
mutex_unlock (&dnp->lock);
if (diskfs_synchronous)
{
diskfs_file_update (dnp, 1);
diskfs_file_update (np, 1);
}
if (err)
return err;
flags &= ~OPENONLY_STATE_MODES; /* These bits are all meaningless here. */
err = diskfs_make_peropen (np, flags, cred->po, &newpo);
if (! err)
{
err = diskfs_create_protid (newpo, cred->user, &newpi);
if (err)
diskfs_release_peropen (newpo);
}
if (! err)
{
*newnode = ports_get_right (newpi);
*newnodetype = MACH_MSG_TYPE_MAKE_SEND;
ports_port_deref (newpi);
}
diskfs_nput (np);
return err;
}
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