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("$FreeBSD$");
35
36 #include <sys/types.h>
37 #include "libc_private.h"
38
39 #define SLOT(a, b) \
40 [INTERPOS_##a] = (interpos_func_t)b
41 interpos_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, __sys_fcntl),
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 SLOT(spinlock, __libc_spinlock_stub),
77 SLOT(spinunlock, __libc_spinunlock_stub),
78 SLOT(kevent, __sys_kevent),
79 SLOT(wait6, __sys_wait6),
80 SLOT(ppoll, __sys_ppoll),
81 SLOT(map_stacks_exec, __libc_map_stacks_exec),
82 SLOT(fdatasync, __sys_fdatasync),
83 SLOT(clock_nanosleep, __sys_clock_nanosleep),
84 SLOT(distribute_static_tls, __libc_distribute_static_tls),
85 SLOT(pdfork, __sys_pdfork),
86 };
87 #undef SLOT
88
89 interpos_func_t *
__libc_interposing_slot(int interposno)90 __libc_interposing_slot(int interposno)
91 {
92
93 return (&__libc_interposing[interposno]);
94 }
95