2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * @(#)fopen.c 8.1 (Berkeley) 6/4/93
33 * $FreeBSD: src/lib/libc/stdio/fopen.c,v 1.14 2008/04/22 17:03:32 jhb Exp $
36 #include "namespace.h"
37 #include <sys/types.h>
42 #include "un-namespace.h"
47 fopen(const char * __restrict file
, const char * __restrict mode
)
53 if ((flags
= __sflags(mode
, &oflags
)) == 0)
55 if ((fp
= __sfp()) == NULL
)
57 if ((f
= _open(file
, oflags
, DEFFILEMODE
)) < 0) {
58 fp
->pub
._flags
= 0; /* release */
62 fp
->pub
._flags
= flags
;
65 fp
->_write
= __swrite
;
67 fp
->_close
= __sclose
;
69 * When opening in append mode, even though we use O_APPEND,
70 * we need to seek to the end so that ftell() gets the right
71 * answer. If the user then alters the seek pointer, or
72 * the file extends, this will fail, but there is not much
73 * we can do about this. (We could set __SAPP and check in
76 if (oflags
& O_APPEND
)
77 _sseek(fp
, (fpos_t)0, SEEK_END
);