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/* libdiskfs implementation of fs.defs: dir_mkdir
Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997 Free Software Foundation
This program 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.
This program 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 "priv.h"
#include "fs_S.h"
/* Implement dir_mkdir as found in <hurd/fs.defs>. */
kern_return_t
diskfs_S_dir_mkdir (struct protid *dircred,
char *name,
mode_t mode)
{
struct node *dnp;
struct node *np = 0;
struct dirstat *ds = alloca (diskfs_dirstat_size);
int error;
if (!dircred)
return EOPNOTSUPP;
dnp = dircred->po->np;
if (diskfs_check_readonly ())
return EROFS;
mutex_lock (&dnp->lock);
error = diskfs_lookup (dnp, name, CREATE, 0, ds, dircred);
if (error == EAGAIN)
error = EEXIST;
if (!error)
error = EEXIST;
if (error != ENOENT)
{
diskfs_drop_dirstat (dnp, ds);
mutex_unlock (&dnp->lock);
return error;
}
mode &= ~(S_ISPARE | S_IFMT);
mode |= S_IFDIR;
error = diskfs_create_node (dnp, name, mode, &np, dircred, ds);
if (diskfs_synchronous)
{
diskfs_file_update (dnp, 1);
diskfs_file_update (np, 1);
}
if (!error)
diskfs_nput (np);
mutex_unlock (&dnp->lock);
return error;
}
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