fclose.c - vx32 - Local 9vx git repository for patches.
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       ---
       fclose.c (2636B)
       ---
            1 /*-
            2  * Copyright (c) 1990, 1993
            3  *        The Regents of the University of California.  All rights reserved.
            4  *
            5  * This code is derived from software contributed to Berkeley by
            6  * Chris Torek.
            7  *
            8  * Redistribution and use in source and binary forms, with or without
            9  * modification, are permitted provided that the following conditions
           10  * are met:
           11  * 1. Redistributions of source code must retain the above copyright
           12  *    notice, this list of conditions and the following disclaimer.
           13  * 2. Redistributions in binary form must reproduce the above copyright
           14  *    notice, this list of conditions and the following disclaimer in the
           15  *    documentation and/or other materials provided with the distribution.
           16  * 3. All advertising materials mentioning features or use of this software
           17  *    must display the following acknowledgement:
           18  *        This product includes software developed by the University of
           19  *        California, Berkeley and its contributors.
           20  * 4. Neither the name of the University nor the names of its contributors
           21  *    may be used to endorse or promote products derived from this software
           22  *    without specific prior written permission.
           23  *
           24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
           25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
           26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
           27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
           28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
           29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
           30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
           31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
           32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
           33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
           34  * SUCH DAMAGE.
           35  */
           36 
           37 #if defined(LIBC_SCCS) && !defined(lint)
           38 static char rcsid[] = "$OpenBSD: fclose.c,v 1.2 1996/08/19 08:32:19 tholo Exp $";
           39 #endif /* LIBC_SCCS and not lint */
           40 
           41 #include <errno.h>
           42 #include <stdio.h>
           43 #include <stdlib.h>
           44 #include "local.h"
           45 
           46 int
           47 fclose(fp)
           48         register FILE *fp;
           49 {
           50         register int r;
           51 
           52         if (fp->_flags == 0) {        /* not open! */
           53                 errno = EBADF;
           54                 return (EOF);
           55         }
           56         r = fp->_flags & __SWR ? __sflush(fp) : 0;
           57         if (fp->_close != NULL && (*fp->_close)(fp->_cookie) < 0)
           58                 r = EOF;
           59         if (fp->_flags & __SMBF)
           60                 free((char *)fp->_bf._base);
           61         if (HASUB(fp))
           62                 FREEUB(fp);
           63         if (HASLB(fp))
           64                 FREELB(fp);
           65         fp->_flags = 0;                /* Release this FILE for reuse. */
           66         fp->_r = fp->_w = 0;        /* Mess up if reaccessed. */
           67         return (r);
           68 }