diff options
Diffstat (limited to 'libc/stdio/fclose.c')
-rw-r--r-- | libc/stdio/fclose.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/libc/stdio/fclose.c b/libc/stdio/fclose.c new file mode 100644 index 0000000..e94292b --- /dev/null +++ b/libc/stdio/fclose.c @@ -0,0 +1,65 @@ +/* $OpenBSD: fclose.c,v 1.6 2005/08/08 08:05:36 espie Exp $ */ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include "local.h" + +/* BIONIC: remove any file lock associated with a FILE* pointer */ +extern void __fremovelock(FILE *fp); + +int +fclose(FILE *fp) +{ + int r; + + if (fp->_flags == 0) { /* not open! */ + errno = EBADF; + return (EOF); + } + WCIO_FREE(fp); + 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. */ + fp->_r = fp->_w = 0; /* Mess up if reaccessed. */ + __fremovelock(fp); + return (r); +} |