interposing_table.c revision 277317 
1/*
2 * Copyright (c) 2014 The FreeBSD Foundation.
3 * All rights reserved.
4 *
5 * Portions of this software were developed by Konstantin Belousov
6 * under sponsorship from the FreeBSD Foundation.
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(s), this list of conditions and the following disclaimer as
13 *    the first lines of this file unmodified other than the possible
14 *    addition of one or more copyright notices.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice(s), this list of conditions and the following disclaimer in
17 *    the documentation and/or other materials provided with the
18 *    distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
21 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
27 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
28 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
29 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
30 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: stable/10/lib/libc/sys/interposing_table.c 277317 2015-01-18 11:54:20Z kib $");
35
36#include <sys/types.h>
37#include "libc_private.h"
38
39#define	SLOT(a, b) \
40	[INTERPOS_##a] = (interpos_func_t)b
41interpos_func_t __libc_interposing[INTERPOS_MAX] = {
42	SLOT(accept, __sys_accept),
43	SLOT(accept4, __sys_accept4),
44	SLOT(aio_suspend, __sys_aio_suspend),
45	SLOT(close, __sys_close),
46	SLOT(connect, __sys_connect),
47	SLOT(fcntl, __fcntl_compat),
48	SLOT(fsync, __sys_fsync),
49	SLOT(fork, __sys_fork),
50	SLOT(msync, __sys_msync),
51	SLOT(nanosleep, __sys_nanosleep),
52	SLOT(openat, __sys_openat),
53	SLOT(poll, __sys_poll),
54	SLOT(pselect, __sys_pselect),
55	SLOT(read, __sys_read),
56	SLOT(readv, __sys_readv),
57	SLOT(recvfrom, __sys_recvfrom),
58	SLOT(recvmsg, __sys_recvmsg),
59	SLOT(select, __sys_select),
60	SLOT(sendmsg, __sys_sendmsg),
61	SLOT(sendto, __sys_sendto),
62	SLOT(setcontext, __sys_setcontext),
63	SLOT(sigaction, __sys_sigaction),
64	SLOT(sigprocmask, __sys_sigprocmask),
65	SLOT(sigsuspend, __sys_sigsuspend),
66	SLOT(sigwait, __libc_sigwait),
67	SLOT(sigtimedwait, __sys_sigtimedwait),
68	SLOT(sigwaitinfo, __sys_sigwaitinfo),
69	SLOT(swapcontext, __sys_swapcontext),
70	SLOT(system, __libc_system),
71	SLOT(tcdrain, __libc_tcdrain),
72	SLOT(wait4, __sys_wait4),
73	SLOT(write, __sys_write),
74	SLOT(writev, __sys_writev),
75	SLOT(_pthread_mutex_init_calloc_cb, _pthread_mutex_init_calloc_cb_stub),
76};
77#undef SLOT
78
79interpos_func_t *
80__libc_interposing_slot(int interposno)
81{
82
83	return (&__libc_interposing[interposno]);
84}
85