kern_select_50.c revision 1.1
1 /* $NetBSD: kern_select_50.c,v 1.1 2011/01/17 15:57:04 pooka Exp $ */ 2 3 /*- 4 * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: kern_select_50.c,v 1.1 2011/01/17 15:57:04 pooka Exp $"); 33 34 #include <sys/param.h> 35 #include <sys/event.h> 36 #include <sys/poll.h> 37 #include <sys/select.h> 38 #include <sys/time.h> 39 #include <sys/syscallargs.h> 40 41 #include <compat/sys/time.h> 42 43 static int 44 compat_50_kevent_fetch_timeout(const void *src, void *dest, size_t length) 45 { 46 struct timespec50 ts50; 47 int error; 48 49 KASSERT(length == sizeof(struct timespec)); 50 51 error = copyin(src, &ts50, sizeof(ts50)); 52 if (error) 53 return error; 54 timespec50_to_timespec(&ts50, (struct timespec *)dest); 55 return 0; 56 } 57 58 int 59 compat_50_sys_kevent(struct lwp *l, const struct compat_50_sys_kevent_args *uap, 60 register_t *retval) 61 { 62 /* { 63 syscallarg(int) fd; 64 syscallarg(keventp_t) changelist; 65 syscallarg(size_t) nchanges; 66 syscallarg(keventp_t) eventlist; 67 syscallarg(size_t) nevents; 68 syscallarg(struct timespec50) timeout; 69 } */ 70 static const struct kevent_ops compat_50_kevent_ops = { 71 .keo_private = NULL, 72 .keo_fetch_timeout = compat_50_kevent_fetch_timeout, 73 .keo_fetch_changes = kevent_fetch_changes, 74 .keo_put_events = kevent_put_events, 75 }; 76 77 return kevent1(retval, SCARG(uap, fd), SCARG(uap, changelist), 78 SCARG(uap, nchanges), SCARG(uap, eventlist), SCARG(uap, nevents), 79 (const struct timespec *)(const void *)SCARG(uap, timeout), 80 &compat_50_kevent_ops); 81 } 82 83 int 84 compat_50_sys_select(struct lwp *l, 85 const struct compat_50_sys_select_args *uap, register_t *retval) 86 { 87 /* { 88 syscallarg(int) nd; 89 syscallarg(fd_set *) in; 90 syscallarg(fd_set *) ou; 91 syscallarg(fd_set *) ex; 92 syscallarg(struct timeval50 *) tv; 93 } */ 94 struct timespec ats, *ts = NULL; 95 struct timeval50 atv50; 96 int error; 97 98 if (SCARG(uap, tv)) { 99 error = copyin(SCARG(uap, tv), (void *)&atv50, sizeof(atv50)); 100 if (error) 101 return error; 102 ats.tv_sec = atv50.tv_sec; 103 ats.tv_nsec = atv50.tv_usec * 1000; 104 ts = &ats; 105 } 106 107 return selcommon(retval, SCARG(uap, nd), SCARG(uap, in), 108 SCARG(uap, ou), SCARG(uap, ex), ts, NULL); 109 } 110 111 int 112 compat_50_sys_pselect(struct lwp *l, 113 const struct compat_50_sys_pselect_args *uap, register_t *retval) 114 { 115 /* { 116 syscallarg(int) nd; 117 syscallarg(fd_set *) in; 118 syscallarg(fd_set *) ou; 119 syscallarg(fd_set *) ex; 120 syscallarg(const struct timespec50 *) ts; 121 syscallarg(sigset_t *) mask; 122 } */ 123 struct timespec50 ats50; 124 struct timespec ats, *ts = NULL; 125 sigset_t amask, *mask = NULL; 126 int error; 127 128 if (SCARG(uap, ts)) { 129 error = copyin(SCARG(uap, ts), &ats50, sizeof(ats50)); 130 if (error) 131 return error; 132 timespec50_to_timespec(&ats50, &ats); 133 ts = &ats; 134 } 135 if (SCARG(uap, mask) != NULL) { 136 error = copyin(SCARG(uap, mask), &amask, sizeof(amask)); 137 if (error) 138 return error; 139 mask = &amask; 140 } 141 142 return selcommon(retval, SCARG(uap, nd), SCARG(uap, in), 143 SCARG(uap, ou), SCARG(uap, ex), ts, mask); 144 } 145 146 int 147 compat_50_sys_pollts(struct lwp *l, const struct compat_50_sys_pollts_args *uap, 148 register_t *retval) 149 { 150 /* { 151 syscallarg(struct pollfd *) fds; 152 syscallarg(u_int) nfds; 153 syscallarg(const struct timespec50 *) ts; 154 syscallarg(const sigset_t *) mask; 155 } */ 156 struct timespec ats, *ts = NULL; 157 struct timespec50 ats50; 158 sigset_t amask, *mask = NULL; 159 int error; 160 161 if (SCARG(uap, ts)) { 162 error = copyin(SCARG(uap, ts), &ats50, sizeof(ats50)); 163 if (error) 164 return error; 165 timespec50_to_timespec(&ats50, &ats); 166 ts = &ats; 167 } 168 if (SCARG(uap, mask)) { 169 error = copyin(SCARG(uap, mask), &amask, sizeof(amask)); 170 if (error) 171 return error; 172 mask = &amask; 173 } 174 175 return pollcommon(retval, SCARG(uap, fds), SCARG(uap, nfds), ts, mask); 176 } 177
Indexes created Wed Sep 24 14:09:57 GMT 2025