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/* Making new files
Copyright (C) 1992, 1993, 1994 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"
/* Create a new node and link it into DIR with as NAME. Give it MODE;
if that includes IFDIR, also initialize `.' and `..' in the new
directory. Return the node in NPP. CRED identifies the user responsible
for the call, and DS is the result of a prior diskfs_lookup for creation. */
error_t
diskfs_create_and_link (struct node *dir,
char *name,
mode_t mode,
struct node **newnode,
struct protid *cred,
struct dirstat *ds)
{
struct node *np;
error_t err;
int dirinc = 0;
int number;
/* Make the node */
err = diskfs_alloc_node (dir, mode, &number);
if (err)
{
diskfs_drop_dirstat (ds);
return err;
}
*newnode = np = diskfs_nget (newnode);
/* Initialize the on-disk fields. */
if (cred->nuids)
np->dn_stat.st_uid = cred->uids[0];
else
{
np->dn_stat.st_uid = dir->dn_stat.st_uid;
mode &= ~S_ISUID;
}
if (groupmember (dir->dn_stat.st_gid, cred))
np->dn_stat.st_gid = dir->dn_stat.st_gid;
else if (cred->ngids)
np->dn_stat.st_gid = cred->gids[0];
else
{
np->dn_stat.st_gid = dir->dn_stat.st_gid;
mode &= ~S_ISGID;
}
np->dn_stat.st_rdev = 0;
np->dn_stat.st_nlink = 1;
np->dn_stat.st_mode = mode;
np->dn_stat.st_blocks = 0;
np->dn_stat.st_size = 0;
np->dn_stat.st_flags = 0;
np->dn_set_atime = 1;
np->dn_set_mtime = 1;
np->dn_set_ctime = 1;
if (S_ISDIR (mode))
err = diskfs_init_dir (np, dir);
diskfs_node_update (np, 1);
if (err)
{
diskfs_drop_dirstat (ds);
return err;
}
err = diskfs_direnter (dir, name, np, ds, cred);
if (err)
{
if (S_ISDIR (mode))
diskfs_clear_directory (np);
np->dn_stat.st_nlink = 0;
np->dn_set_ctime = 1;
diskfs_nput (np);
}
return err;
}
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