NAME
dpns_access - check existence/accessibility of a file/directory
SYNOPSIS
Under Unix:
#include <sys/types.h>
#include <unistd.h>
#include "dpns_api.h"
Under Windows/NT:
#include <sys/types.h>
#define R_OK 4
#define W_OK 2
#define X_OK 1
#define F_OK 0
#include "dpns_api.h"
int dpns_access (const char *path, int amode);
DESCRIPTION
dpns_access checks in the name server database the existence or the
accessibility of the file/directory path according to the bit pattern
in amode using the real user ID.
path specifies the logical pathname relative to the current DPNS
directory or the full DPNS pathname.
amode the bit pattern is built by an OR of the constants defined in
<unistd.h> under Unix or to be explicitly defined under
Windows/NT:
R_OK test for read permission
W_OK test for write permission
X_OK test for search/execute permission
F_OK test for existence of the directory/file.
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 The named file/directory does not exist.
EACCES Search permission is denied on a component of the path
prefix or specified access to the file itself is denied.
EFAULT path is a NULL pointer.
ENOTDIR A component of path prefix is not a directory.
EINVAL amode is invalid.
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)
AUTHOR
LCG Grid Deployment Team
DPNS $Date: 2010-04-05 09:51:26 +0200 (Mon, 05 Apr 2010)