xref: /dragonfly/lib/libc/stdio/_flock_stub.c (revision 27f48495)
1 /*
2  * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by John Birrell.
16  * 4. Neither the name of the author nor the names of any co-contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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
30  * SUCH DAMAGE.
31  *
32  * $FreeBSD: src/lib/libc/stdio/_flock_stub.c,v 1.3 1999/08/28 00:00:55 peter Exp $
33  * $DragonFly: src/lib/libc/stdio/_flock_stub.c,v 1.6 2005/02/02 04:57:15 dillon Exp $
34  *
35  */
36 
37 #include <stdio.h>
38 
39 /* Don't build this in libc_r, just libc: */
40 /*
41  * Declare weak references in case the application is not linked
42  * with libpthread.
43  */
44 __weak_reference(_flockfile_stub,flockfile);
45 __weak_reference(_flockfile_stub,_flockfile);
46 __weak_reference(_flockfile_debug_stub,_flockfile_debug);
47 __weak_reference(_ftrylockfile_stub,ftrylockfile);
48 __weak_reference(_ftrylockfile_stub,_ftrylockfile);
49 __weak_reference(_funlockfile_stub,funlockfile);
50 __weak_reference(_funlockfile_stub,_funlockfile);
51 
52 void	flockfile(FILE *);
53 void	_flockfile_debug(FILE *, char *, int);
54 int 	ftrylockfile(FILE *);
55 void	funlockfile(FILE *);
56 
57 /*
58  * This function is a stub for the _flockfile function in libpthread.
59  */
60 void
61 _flockfile_stub(FILE *fp)
62 {
63 }
64 
65 /*
66  * This function is a stub for the _flockfile_debug function in libpthread.
67  */
68 void
69 _flockfile_debug_stub(FILE *fp, char *fname, int lineno)
70 {
71 }
72 
73 /*
74  * This function is a stub for the _ftrylockfile function in libpthread.
75  */
76 int
77 _ftrylockfile_stub(FILE *fp)
78 {
79 	return(0);
80 }
81 
82 /*
83  * This function is a stub for the _funlockfile function in libpthread.
84  */
85 void
86 _funlockfile_stub(FILE *fp)
87 {
88 }
89