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 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, __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}; 84#undef SLOT 85 86interpos_func_t * 87__libc_interposing_slot(int interposno) 88{ 89 90 return (&__libc_interposing[interposno]); 91} 92