Ultrix-3.1/src/libPW/rename.c

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/**********************************************************************
 *   Copyright (c) Digital Equipment Corporation 1984, 1985, 1986.    *
 *   All Rights Reserved. 					      *
 *   Reference "/usr/src/COPYRIGHT" for applicable restrictions.      *
 **********************************************************************/

static char Sccsid[]="@(#)rename.c 3.0 4/22/86";
# include "errno.h"
# include "fatal.h"

/*
	rename (unlink/link)
	Calls xlink() and xunlink().
*/

rename(oldname,newname)
char *oldname, *newname;
{
	extern int errno;

	if (unlink(newname) < 0 && errno != ENOENT)
		return(xunlink(newname));

	if (xlink(oldname,newname) == Fvalue)
		return(-1);
	return(xunlink(oldname));
}