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.\" @(#)$RCSfile: Cns_setfsize.man,v $ $Revision: 1.2 $ $Date: 2008/09/19 11:32:26 $ CERN IT-PDP/DM Jean-Philippe Baud
.\" Copyright (C) 1999-2008 by CERN/IT/PDP/DM
.\" All rights reserved
.\"
.TH CNS_SETFSIZE 3 "$Date: 2008/09/19 11:32:26 $" CASTOR "Cns Library Functions"
.SH NAME
Cns_setfsize \- set filesize for a regular file; set also last modification time to the current time
.SH SYNOPSIS
.B #include <sys/types.h>
.br
\fB#include "Cns_api.h"\fR
.sp
.BI "int Cns_setfsize (const char *" path ,
.BI "struct Cns_fileid *" file_uniqueid ,
.BI "u_signed64 " filesize )
.sp
.BI "int Cns_setfsizec (const char *" path ,
.BI "struct Cns_fileid *" file_uniqueid ,
.BI "u_signed64 " filesize ,
.BI "const char *" csumtype ,
.BI "char *" csumvalue )
.SH DESCRIPTION
.B Cns_setfsize
sets the filesize for a regular file; set also the last modification time to the
current time.
This function should only be called by the stager after the last write
operation has been performed on the file.
The file can be identified by
.I path
name or by
.IR file_uniqueid .
If both are specified,
.I file_uniqueid
is used.
.TP
.I path
specifies the logical pathname relative to the current CASTOR directory or
the full CASTOR pathname.
.TP
.I csumtype
specifies the type of checksum. Valid types are:
.RS
.TP
.B CS
standard 32 bits checksum
.TP
.B AD
Adler 32 bits checksum
.TP
.B MD
MD5 128 bits checksum
.RE
.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 path
prefix does not exist or
.I path
is a null pathname.
.TP
.B EACCES
Search permission is denied on a component of the
.I path
prefix or the caller effective user ID does not match the owner ID of the file
or write permission on the file itself is denied.
.TP
.B EFAULT
.I path
and
.I file_uniqueid
are NULL pointers.
.TP
.B ENOTDIR
A component of
.I path
prefix is not a directory.
.TP
.B EISDIR
The file is not a regular file.
.TP
.B EINVAL
The length of the
.I csumtype
exceeds 2 or
.I csumtype
is an unknown type or the length of the
.I csumvalue
exceeds 32.
.TP
.B ENAMETOOLONG
The length of
.I path
exceeds
.B CA_MAXPATHLEN
or the length of a
.I path
component exceeds
.BR CA_MAXNAMELEN .
.TP
.B SENOSHOST
Host unknown.
.TP
.B SENOSSERV
Service unknown.
.TP
.B SECOMERR
Communication error.
.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_statg(3)
.SH AUTHOR
\fBCASTOR\fP Team <castor.support@cern.ch>
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