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
|
// +build linux,386
/* Copyright 2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
*/
package main
import (
"golang.org/x/sys/unix"
"syscall"
"unsafe"
)
const (
_SENDMSG = 16
_RECVMSG = 17
)
func sendmsg(fd int, msghdr *unix.Msghdr, flags int) (uintptr, uintptr, syscall.Errno) {
args := struct {
fd uintptr
msghdr uintptr
flags uintptr
}{
uintptr(fd),
uintptr(unsafe.Pointer(msghdr)),
uintptr(flags),
}
return unix.Syscall(
unix.SYS_SOCKETCALL,
_SENDMSG,
uintptr(unsafe.Pointer(&args)),
0,
)
}
func recvmsg(fd int, msghdr *unix.Msghdr, flags int) (uintptr, uintptr, syscall.Errno) {
args := struct {
fd uintptr
msghdr uintptr
flags uintptr
}{
uintptr(fd),
uintptr(unsafe.Pointer(msghdr)),
uintptr(flags),
}
return unix.Syscall(
unix.SYS_SOCKETCALL,
_RECVMSG,
uintptr(unsafe.Pointer(&args)),
0,
)
}
|
