date and time created 91/03/07 10:23:53 by bostic

[unix-history] / usr / src / lib / libc / stdio / fclose.c

/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Chris Torek.
*
* %sccs.include.redist.c%
*/

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)fclose.c    5.2 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include "local.h"

fclose(fp)
       register FILE *fp;
{
       register int r;

       if (fp->_flags == 0) {  /* not open! */
               errno = EBADF;
               return (EOF);
       }
       r = fp->_flags & __SWR ? __sflush(fp) : 0;
       if (fp->_close != NULL && (*fp->_close)(fp->_cookie) < 0)
               r = EOF;
       if (fp->_flags & __SMBF)
               free((char *)fp->_bf._base);
       if (HASUB(fp))
               FREEUB(fp);
       if (HASLB(fp))
               FREELB(fp);
       fp->_flags = 0;         /* release this FILE for reuse */
       return (r);
}