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/*
* $Id: fileno.c,v 1.1 2005/03/31 13:13:00 baud Exp $
*/
/*
* Copyright (C) 2002 by CERN/IT/DS/HSM
* All rights reserved
*/
#ifndef lint
static char sccsid[] = "@(#)$RCSfile: fileno.c,v $ $Revision: 1.1 $ $Date: 2005/03/31 13:13:00 $ CERN/IT/DS/HSM Jean-Philippe Baud";
#endif /* not lint */
/* fileno.c Remote File I/O - map stream pointer to file descriptor */
/*
* System remote file I/O definitions
*/
#define RFIO_KERNEL 1
#include "rfio.h"
#include "rfio_rfilefdt.h"
int DLL_DECL rfio_fileno(fp)
RFILE *fp; /* Remote file pointer */
{
int fd;
INIT_TRACE("RFIO_TRACE");
TRACE(1, "rfio", "rfio_fileno(%x)", fp);
if ( fp == NULL ) {
errno = EBADF;
END_TRACE();
return -1 ;
}
/*
* Is the file local? this is the only way to detect it !
*/
if (rfio_rfilefdt_findptr(fp,FINDRFILE_WITH_SCAN) == -1)
fd = fileno((FILE *)fp); /* The file is local */
else
fd = fp->s; /* The file is remote */
END_TRACE() ;
return (fd) ;
}
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