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.\" @(#)$RCSfile: Cns_symlink.man,v $ $Revision: 1.1.1.1 $ $Date: 2004/06/28 09:18:05 $ CERN IT-GD/CT Jean-Philippe Baud
.\" Copyright (C) 2004 by CERN/IT/GD/CT
.\" All rights reserved
.\"
.TH CNS_SYMLINK 3 "$Date: 2004/06/28 09:18:05 $" CASTOR "Cns Library Functions"
.SH NAME
Cns_symlink \- make a symbolic link to a file or a directory in the CASTOR Name Server
.SH SYNOPSIS
.B #include <sys/types.h>
.br
\fB#include "Cns_api.h"\fR
.sp
.BI "int Cns_symlink (const char *" target ,
.BI "const char *" linkname )
.SH DESCRIPTION
.B Cns_symlink
makes a symbolic link to a file or a directory in the CASTOR Name Server.
.TP
.I linkname
specifies the link name relative to the current CASTOR directory or
the full CASTOR pathname.
.SH RETURN VALUE
This routine returns 0 if the operation was successful or -1 if the operation
failed. In the latter case,
.B serrno
is set appropriately.
.SH ERRORS
.TP 1.3i
.B ENOENT
A component of
.I linkname
prefix does not exist.
.TP
.B EACCES
Search permission is denied on a component of
.I linkname
prefix or write permission on
.I linkname
parent directory is denied.
.TP
.B EFAULT
.I target
or
.I linkname
is a NULL pointer.
.TP
.B EEXIST
.I linkname
exists already.
.TP
.B ENOTDIR
A component of
.I linkname
prefix is not a directory.
.TP
.B ENOSPC
The name server database is full.
.TP
.B ENAMETOOLONG
The length of
.I target
or
.I linkname
exceeds
.B CA_MAXPATHLEN
or the length of a
.I linkname
component exceeds
.BR CA_MAXNAMELEN .
.TP
.B SENOSHOST
Host unknown.
.TP
.B SENOSSERV
Service unknown.
.TP
.B SECOMERR
Communication error.
.TP
.B SELOOP
Too many symbolic links encountered when parsing
.IR linkname .
.TP
.B ENSNACT
Name server is not running or is being shutdown.
.SH SEE ALSO
.BR Castor_limits(4) ,
.BR Cns_chdir(3) ,
.BR Cns_chmod(3) ,
.BR Cns_readlink(3) ,
.BR Cns_stat(3) ,
.B Cupvlist(1)
.SH AUTHOR
\fBCASTOR\fP Team <castor.support@cern.ch>
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