lfc_readdirg(3) [debian man page]

LFC_READDIRG(3) 					       LFC Library Functions						   LFC_READDIRG(3)

NAME

       lfc_readdirg - read LFC directory opened by lfc_opendir in the name server

SYNOPSIS

       #include <sys/types.h>
       #include "lfc_api.h"

       struct lfc_direnstatg *lfc_readdirg (lfc_DIR *dirp)

DESCRIPTION

       lfc_readdirg  reads  the  LFC directory opened by lfc_opendir in the name server.  This routine returns a pointer to a structure containing
       the current directory entry including the GUID associated.

       struct lfc_direnstatg {
	    u_signed64	   fileid;
	    char      guid[CA_MAXGUIDLEN+1];
	    mode_t	   filemode;
	    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;	  /* not used */
	    char      status;	     /* ' ' --> online, 'm' --> migrated */
	    char      csumtype[3];   /* "CS", "AD" or "MD" */
	    char      csumvalue[33];
	    unsigned short d_reclen; /* length of this entry */
	    char      d_name[1];     /* basename in variable length */
       };

       lfc_readdirg caches a variable number of such entries, depending on the filename size, to minimize the  number  of  requests  to  the  name
       server.

       dirp   specifies the pointer value returned by lfc_opendir.

RETURN VALUE

       This  routine returns a pointer to a structure containing the current directory entry if the operation was successful or NULL if the end of
       the directory was reached or if the operation failed. When the end of the directory is encountered, serrno is not changed. If the operation
       failed, serrno is set appropriately.

       As  lfc_readdirg returns a null pointer both at the end of the directory and on error, an application wishing to check for error situations
       should set serrno to 0, then call lfc_readdirg, then check serrno and if it is non-zero, assume an error has occurred.

ERRORS

       EBADF	    File descriptor in DIR structure is invalid.

       EFAULT	    dirp is a NULL pointer.

       SECOMERR     Communication error.

       ENSNACT	    Name server is not running or is being shutdown.

SEE ALSO

       lfc_closedir(3), lfc_opendirg(3), lfc_rewinddir(3)

AUTHOR

       LCG Grid Deployment Team

LFC
								      $Date$							   LFC_READDIRG(3)

LFC_STATG(3)						       LFC Library Functions						      LFC_STATG(3)

NAME

       lfc_statg - get information about a LFC file or directory in the name server

SYNOPSIS

       #include <sys/types.h>
       #include "lfc_api.h"

       int lfc_statg (const char *path, const char *guid, struct lfc_filestatg *statbuf)

       int lfc_statr (const char *sfn, struct lfc_filestatg *statbuf)

DESCRIPTION

       lfc_statg gets information about a LFC file or directory, having the given GUID, in the name server.

       lfc_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 LFC directory or the full LFC 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.

SEE ALSO

       Castor_limits(4), lfc_chdir(3), lfc_chmod(3), lfc_chown(3), lfc_creatg(3)

AUTHOR

       LCG Grid Deployment Team

LFC
							   $Date: 2005/04/28 05:20:20 $ 					      LFC_STATG(3)