SYNOPSIS

#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)

DESCRIPTION

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

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 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.

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AUTHOR

LCG Grid Deployment Team