Get information about a dpns file or directory in the name server
#include <sys/types.h>
#include "dpns_api.h"
int dpns_statg (const char *path, const char *guid, struct dpns_filestatg *statbuf)
int dpns_statr (const char *sfn, struct dpns_filestatg *statbuf)
dpns_statg gets information about a DPNS file or directory, having the given GUID, in the name server.
dpns_statr retrieves information about the given replica.
The file can be specified by path name or by guid. If both are given, they must point at the same file.
guid
specifies the Grid Unique IDentifier.
path
specifies the logical pathname relative to the current DPNS directory or the full DPNS pathname.
sfn
is either the Site URL or the Physical File Name for the replica.
The structure pointed to by statbuf contains the following members:
u_signed64 fileid; /* entry unique identifier */
char guid[CA_MAXGUIDLEN+1] /* GUID */
mode_t filemode; /* see below */
int nlink; /* number of files in a directory */
uid_t uid;
gid_t gid;
u_signed64 filesize;
time_t atime; /* last access to file */
time_t mtime; /* last file modification */
time_t ctime; /* last metadata modification */
short fileclass; /* 1--> experiment, 2 --> user */
char status; /* '-' --> online, 'm' --> migrated */
char csumtype[3];
char csumvalue[33];
filemode is constructed by OR'ing the bits defined in <sys/stat.h> under Unix or "statbits.h" under Windows/NT:
S_IFLNK 0xA000 symbolic link
S_IFREG 0x8000 regular file
S_IFDIR 0x4000 directory
S_ISUID 0004000 set user ID on execution
S_ISGID 0002000 set group ID on execution
S_ISVTX 0001000 sticky bit
S_IRUSR 0000400 read by owner
S_IWUSR 0000200 write by owner
S_IXUSR 0000100 execute/search by owner
S_IRGRP 0000040 read by group
S_IWGRP 0000020 write by group
S_IXGRP 0000010 execute/search by group
S_IROTH 0000004 read by others
S_IWOTH 0000002 write by others
S_IXOTH 0000001 execute/search by others
This routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, serrno is set appropriately.
ENOENT
The named file/directory does not exist or is a null pathname.
EACCES
Search permission is denied on a component of the path prefix.
EFAULT
path or statbuf is a NULL pointer.
EINVAL
The length of the guid component exceeds CA_MAXGUIDLEN or path and guid are both given and they point at a different file.
ENOTDIR
A component of path prefix is not a directory.
ENAMETOOLONG
The length of path exceeds CA_MAXPATHLEN or the length of a path component exceeds CA_MAXNAMELEN or the length of the sfn exceeds CA_MAXSFNLEN.
SENOSHOST
Host unknown.
SENOSSERV
Service unknown.
SECOMERR
Communication error.
ENSNACT
Name server is not running or is being shutdown.
LCG Grid Deployment Team