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- /*
- * Libraries and headers for PDC release 3.3 (C) 1989 Lionel Hummel.
- * PDC Software Distribution (C) 1989 Lionel Hummel and Paul Petersen.
- * PDC I/O Library (C) 1987 by J.A. Lydiatt.
- *
- * This code is freely redistributable upon the conditions that this
- * notice remains intact and that modified versions of this file not
- * be included as part of the PDC Software Distribution without the
- * express consent of the copyright holders. No warrantee of any
- * kind is provided with this code. For further information, contact:
- *
- * PDC Software Distribution Internet: BIX:
- * P.O. Box 4006 or hummel@cs.uiuc.edu lhummel
- * Urbana, IL 61801-8801 petersen@uicsrd.csrd.uiuc.edu
- */
-
- /* rename - renames an existing file */
-
- #include <errno.h>
- #include <libraries/dos.h>
- #include <functions.h>
-
- int
- rename(old, new)
- char *old, *new;
- {
- struct FileLock *lock;
-
- if ( lock = Lock(new, ACCESS_READ) ) {
- UnLock( lock);
- errno = EEXIST;
- return -1;
- }
-
- if ( !Rename(old, new) ) {
- errno = IoErr();
- return -1;
- }
-
- return 0;
- }
-