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