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 | |