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rename.c
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C/C++ Source or Header
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1990-04-07
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1KB
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42 lines
/*
* 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;
}