DPNS_CREAT
Section: DPNS Library Functions (3)
Updated: $Date: 2005/06/30 08:34:03 $
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NAME
dpns_creat - create a new DPNS file or reset it in the name server
SYNOPSIS
#include <sys/types.h>
#include "dpns_api.h"
int dpns_creat (const char *path,
mode_t mode)
int dpns_creatx (const char *path,
mode_t mode,
struct dpns_fileid *file_uniqueid)
DESCRIPTION
dpns_creat
creates a new DPNS file or resets it in the name server.
If the file exists, the length is truncated to 0 and the mode and owner
are unchanged.
If the file does not exist yet, an entry is created in the name server
database and the file's owner ID is set to the effective user ID of the
requestor.
The group ID of the file is set to the effective group ID of the requestor
or is taken from the parent directory if the latter has the
S_ISGID
bit set.
The access permission bits for the file are taken from
mode,
then all bits set in the requestor's file mode creation mask are cleared (see
dpns_umask(3)).
dpns_creatx
behaves in the same way and returns the file unique id (name server hostname
and file id).
- path
-
specifies the logical pathname relative to the current DPNS directory or
the full DPNS pathname.
RETURN VALUE
This routine returns 0 if the operation was successful or -1 if the operation
failed. In the latter case,
serrno
is set appropriately.
ERRORS
- ENOENT
-
A component of
path
prefix does not exist or
path
is a null pathname.
- EACCES
-
Search permission is denied on a component of the
path
prefix or the file does not exist and write permission on the parent directory
is denied or the file exists and write permission on the file itself is denied.
- EFAULT
-
path
or
file_uniqueid
is a NULL pointer.
- EEXIST
-
File exists already and has replicas.
- ENOTDIR
-
A component of
path
prefix is not a directory.
- EISDIR
-
path
is an existing directory.
- EINVAL
-
The fileclass in the parent directory is zero.
- ENOSPC
-
The name server database is full.
- ENAMETOOLONG
-
The length of
path
exceeds
CA_MAXPATHLEN
or the length of a
path
component exceeds
CA_MAXNAMELEN.
- SENOSHOST
-
Host unknown.
- SENOSSERV
-
Service unknown.
- SECOMERR
-
Communication error.
- ENSNACT
-
Name server is not running or is being shutdown.
SEE ALSO
Castor_limits(4),
dpns_chdir(3),
dpns_chmod(3),
dpns_stat(3), dpns_statg(3),
dpns_umask(3)
AUTHOR
LCG Grid Deployment Team