1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
|
use std::{mem, ptr};
use libc::{c_int, socklen_t};
use fcntl::{Fd, fcntl, F_SETFL, F_SETFD, FD_CLOEXEC, O_NONBLOCK};
use errno::{SysResult, SysError, from_ffi};
use features;
pub use libc::{in_addr, sockaddr_in, sockaddr_in6, sockaddr_un, sa_family_t};
pub use self::consts::*;
mod ffi {
use libc::{c_int, c_void, sockaddr, socklen_t};
pub use libc::{socket, listen, bind, accept, connect, setsockopt};
extern {
pub fn accept4(
sockfd: c_int,
addr: *mut sockaddr,
addrlen: *mut socklen_t,
flags: c_int) -> c_int;
pub fn getsockopt(
sockfd: c_int,
level: c_int,
optname: c_int,
optval: *mut c_void,
optlen: *mut socklen_t) -> c_int;
}
}
// Extra flags - Supported by Linux 2.6.27, normalized on other platforms
bitflags!(
flags SockFlag: c_int {
static SOCK_NONBLOCK = 0o0004000,
static SOCK_CLOEXEC = 0o2000000
}
)
pub enum SockAddr {
SockIpV4(sockaddr_in),
SockIpV6(sockaddr_in6),
SockUnix(sockaddr_un)
}
#[cfg(target_os = "linux")]
mod consts {
use libc::{c_int};
pub type AddressFamily = c_int;
pub static AF_UNIX: AddressFamily = 1;
pub static AF_LOCAL: AddressFamily = AF_UNIX;
pub static AF_INET: AddressFamily = 2;
pub static AF_INET6: AddressFamily = 10;
pub type SockType = c_int;
pub static SOCK_STREAM: SockType = 1;
pub static SOCK_DGRAM: SockType = 2;
pub static SOCK_SEQPACKET: SockType = 5;
pub static SOCK_RAW: SockType = 3;
pub static SOCK_RDM: SockType = 4;
pub type SockLevel = c_int;
pub static SOL_IP: SockLevel = 0;
pub static SOL_SOCKET: SockLevel = 1;
pub static SOL_TCP: SockLevel = 6;
pub static SOL_UDP: SockLevel = 17;
pub static SOL_IPV6: SockLevel = 41;
pub type SockOpt = c_int;
pub static SO_ACCEPTCONN: SockOpt = 30;
pub static SO_BINDTODEVICE: SockOpt = 25;
pub static SO_BROADCAST: SockOpt = 6;
pub static SO_BSDCOMPAT: SockOpt = 14;
pub static SO_DEBUG: SockOpt = 1;
pub static SO_DOMAIN: SockOpt = 39;
pub static SO_ERROR: SockOpt = 4;
pub static SO_DONTROUTE: SockOpt = 5;
pub static SO_KEEPALIVE: SockOpt = 9;
pub static SO_LINGER: SockOpt = 13;
pub static SO_MARK: SockOpt = 36;
pub static SO_OOBINLINE: SockOpt = 10;
pub static SO_PASSCRED: SockOpt = 16;
pub static SO_PEEK_OFF: SockOpt = 42;
pub static SO_PEERCRED: SockOpt = 17;
pub static SO_PRIORITY: SockOpt = 12;
pub static SO_PROTOCOL: SockOpt = 38;
pub static SO_RCVBUF: SockOpt = 8;
pub static SO_RCVBUFFORCE: SockOpt = 33;
pub static SO_RCVLOWAT: SockOpt = 18;
pub static SO_SNDLOWAT: SockOpt = 19;
pub static SO_RCVTIMEO: SockOpt = 20;
pub static SO_SNDTIMEO: SockOpt = 21;
pub static SO_REUSEADDR: SockOpt = 2;
pub static SO_RXQ_OVFL: SockOpt = 40;
pub static SO_SNDBUF: SockOpt = 7;
pub static SO_SNDBUFFORCE: SockOpt = 32;
pub static SO_TIMESTAMP: SockOpt = 29;
pub static SO_TYPE: SockOpt = 3;
pub static SO_BUSY_POLL: SockOpt = 46;
}
#[cfg(target_os = "macos")]
#[cfg(target_os = "ios")]
mod consts {
use libc::{c_int};
pub type AddressFamily = c_int;
pub static AF_UNIX: AddressFamily = 1;
pub static AF_LOCAL: AddressFamily = AF_UNIX;
pub static AF_INET: AddressFamily = 2;
pub static AF_INET6: AddressFamily = 30;
pub type SockType = c_int;
pub static SOCK_STREAM: SockType = 1;
pub static SOCK_DGRAM: SockType = 2;
pub static SOCK_SEQPACKET: SockType = 5;
pub static SOCK_RAW: SockType = 3;
pub static SOCK_RDM: SockType = 4;
pub type SockLevel = c_int;
pub static SOL_SOCKET: SockLevel = 0xffff;
pub type SockOpt = c_int;
pub static SO_ACCEPTCONN: SockOpt = 0x0002;
pub static SO_BROADCAST: SockOpt = 0x0020;
pub static SO_DEBUG: SockOpt = 0x0001;
pub static SO_DONTTRUNC: SockOpt = 0x2000;
pub static SO_ERROR: SockOpt = 0x1007;
pub static SO_DONTROUTE: SockOpt = 0x0010;
pub static SO_KEEPALIVE: SockOpt = 0x0008;
pub static SO_LABEL: SockOpt = 0x1010;
pub static SO_LINGER: SockOpt = 0x0080;
pub static SO_NREAD: SockOpt = 0x1020;
pub static SO_NKE: SockOpt = 0x1021;
pub static SO_NOSIGPIPE: SockOpt = 0x1022;
pub static SO_NOADDRERR: SockOpt = 0x1023;
pub static SO_NOTIFYCONFLICT: SockOpt = 0x1026;
pub static SO_NP_EXTENSIONS: SockOpt = 0x1083;
pub static SO_NWRITE: SockOpt = 0x1024;
pub static SO_OOBINLINE: SockOpt = 0x0100;
pub static SO_PEERLABEL: SockOpt = 0x1011;
pub static SO_RCVBUF: SockOpt = 0x1002;
pub static SO_RCVLOWAT: SockOpt = 0x1004;
pub static SO_SNDLOWAT: SockOpt = 0x1003;
pub static SO_RCVTIMEO: SockOpt = 0x1006;
pub static SO_SNDTIMEO: SockOpt = 0x1005;
pub static SO_RANDOMPORT: SockOpt = 0x1082;
pub static SO_RESTRICTIONS: SockOpt = 0x1081;
pub static SO_RESTRICT_DENYIN: SockOpt = 0x00000001;
pub static SO_RESTRICT_DENYOUT: SockOpt = 0x00000002;
pub static SO_REUSEADDR: SockOpt = 0x0004;
pub static SO_REUSESHAREUID: SockOpt = 0x1025;
pub static SO_SNDBUF: SockOpt = 0x1001;
pub static SO_TIMESTAMP: SockOpt = 0x0400;
pub static SO_TIMESTAMP_MONOTONIC: SockOpt = 0x0800;
pub static SO_TYPE: SockOpt = 0x1008;
pub static SO_WANTMORE: SockOpt = 0x4000;
pub static SO_WANTOOBFLAG: SockOpt = 0x8000;
#[allow(type_overflow)]
pub static SO_RESTRICT_DENYSET: SockOpt = 0x80000000;
}
pub fn socket(domain: AddressFamily, mut ty: SockType, flags: SockFlag) -> SysResult<Fd> {
let feat_atomic = features::atomic_cloexec(); // TODO: detect
if feat_atomic {
ty = ty | flags.bits();
}
// TODO: Check the kernel version
let res = unsafe { ffi::socket(domain, ty, 0) };
if res < 0 {
return Err(SysError::last());
}
if !feat_atomic {
try!(fcntl(res, F_SETFD(FD_CLOEXEC)));
try!(fcntl(res, F_SETFL(O_NONBLOCK)));
}
Ok(res)
}
pub fn listen(sockfd: Fd, backlog: uint) -> SysResult<()> {
let res = unsafe { ffi::listen(sockfd, backlog as c_int) };
from_ffi(res)
}
pub fn bind(sockfd: Fd, addr: &SockAddr) -> SysResult<()> {
let res = unsafe {
match *addr {
SockIpV4(ref addr) => ffi::bind(sockfd, mem::transmute(addr), mem::size_of::<sockaddr_in>() as socklen_t),
SockIpV6(ref addr) => ffi::bind(sockfd, mem::transmute(addr), mem::size_of::<sockaddr_in6>() as socklen_t),
SockUnix(ref addr) => ffi::bind(sockfd, mem::transmute(addr), mem::size_of::<sockaddr_un>() as socklen_t)
}
};
from_ffi(res)
}
pub fn accept(sockfd: Fd) -> SysResult<Fd> {
let res = unsafe { ffi::accept(sockfd, ptr::mut_null(), ptr::mut_null()) };
if res < 0 {
return Err(SysError::last());
}
Ok(res)
}
pub fn accept4(sockfd: Fd, flags: SockFlag) -> SysResult<Fd> {
// TODO: Check the kernel version
let res = unsafe { ffi::accept4(sockfd, ptr::mut_null(), ptr::mut_null(), flags.bits) };
if res < 0 {
return Err(SysError::last());
}
Ok(res)
}
pub fn connect(sockfd: Fd, addr: &SockAddr) -> SysResult<()> {
let res = unsafe {
match *addr {
SockIpV4(ref addr) => ffi::connect(sockfd, mem::transmute(addr), mem::size_of::<sockaddr_in>() as socklen_t),
SockIpV6(ref addr) => ffi::connect(sockfd, mem::transmute(addr), mem::size_of::<sockaddr_in6>() as socklen_t),
SockUnix(ref addr) => ffi::connect(sockfd, mem::transmute(addr), mem::size_of::<sockaddr_un>() as socklen_t)
}
};
from_ffi(res)
}
pub fn getsockopt<T>(fd: Fd, level: SockLevel, opt: SockOpt, val: &mut T) -> SysResult<uint> {
let mut len = mem::size_of::<T>() as socklen_t;
let res = unsafe {
ffi::getsockopt(
fd, level, opt,
mem::transmute(val),
&mut len as *mut socklen_t)
};
if res < 0 {
return Err(SysError::last());
}
Ok(len as uint)
}
pub fn setsockopt<T>(fd: Fd, level: SockLevel, opt: SockOpt, val: &T) -> SysResult<()> {
let len = mem::size_of::<T>() as socklen_t;
let res = unsafe {
ffi::setsockopt(
fd, level, opt,
mem::transmute(val),
len)
};
from_ffi(res)
}
|
