/* ********************************************************************** *\
 *         Copyright IBM Corporation 1988,1991 - All Rights Reserved      *
 *        For full copyright information see:'andrew/config/COPYRITE'     *
\* ********************************************************************** */

/*
	$Disclaimer: 
 * Permission to use, copy, modify, and distribute this software and its 
 * documentation for any purpose is hereby granted without fee, 
 * provided that the above copyright notice appear in all copies and that 
 * both that copyright notice, this permission notice, and the following 
 * disclaimer appear in supporting documentation, and that the names of 
 * IBM, Carnegie Mellon University, and other copyright holders, not be 
 * used in advertising or publicity pertaining to distribution of the software 
 * without specific, written prior permission.
 * 
 * IBM, CARNEGIE MELLON UNIVERSITY, AND THE OTHER COPYRIGHT HOLDERS 
 * DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 
 * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO EVENT 
 * SHALL IBM, CARNEGIE MELLON UNIVERSITY, OR ANY OTHER COPYRIGHT HOLDER 
 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY 
 * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 
 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 
 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 
 * OF THIS SOFTWARE.
 *  $
*/

#ifndef NORCSID
#define NORCSID
static char rcsid[]="$Header: /afs/cs.cmu.edu/project/atk-dist/auis-6.3/ams/libs/ms/RCS/mvinvice.c,v 2.6 1992/12/15 21:20:00 rr2b R6tape $";
#endif

#include <errno.h>
#include <andrewos.h> /* sys/file.h */

extern int errno;

RenameEvenInVice(ThisFileName, NewFileName)
char   *ThisFileName,
       *NewFileName;
{
    int     ReallyBad = 5;

    while (1) {
	if (!rename(ThisFileName, NewFileName)) {
	    return(0);
	}
	switch (errno) {
	    case EINTR:
		/* Interrupted system call -- try again */
		if (!ReallyBad--) return(-1);
		break;
	    case ENOENT:
		/* May be a vice timing error -- rename might */
		/* have actually worked! */
		if (!access(NewFileName, F_OK)) {
		    return(0);
		}
		errno = ENOENT;
		return(-1);
	    default:
		return(-1);
	}
    }
}