1// Copyright 2012 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5//go:build arm && freebsd
6// +build arm,freebsd
7
8package unix
9
10import (
11	"syscall"
12	"unsafe"
13)
14
15func setTimespec(sec, nsec int64) Timespec {
16	return Timespec{Sec: sec, Nsec: int32(nsec)}
17}
18
19func setTimeval(sec, usec int64) Timeval {
20	return Timeval{Sec: sec, Usec: int32(usec)}
21}
22
23func SetKevent(k *Kevent_t, fd, mode, flags int) {
24	k.Ident = uint32(fd)
25	k.Filter = int16(mode)
26	k.Flags = uint16(flags)
27}
28
29func (iov *Iovec) SetLen(length int) {
30	iov.Len = uint32(length)
31}
32
33func (msghdr *Msghdr) SetControllen(length int) {
34	msghdr.Controllen = uint32(length)
35}
36
37func (msghdr *Msghdr) SetIovlen(length int) {
38	msghdr.Iovlen = int32(length)
39}
40
41func (cmsg *Cmsghdr) SetLen(length int) {
42	cmsg.Len = uint32(length)
43}
44
45func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
46	var writtenOut uint64 = 0
47	_, _, e1 := Syscall9(SYS_SENDFILE, uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr((*offset)>>32), uintptr(count), 0, uintptr(unsafe.Pointer(&writtenOut)), 0, 0)
48
49	written = int(writtenOut)
50
51	if e1 != 0 {
52		err = e1
53	}
54	return
55}
56
57func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
58
59func PtraceIO(req int, pid int, addr uintptr, out []byte, countin int) (count int, err error) {
60	ioDesc := PtraceIoDesc{Op: int32(req), Offs: (*byte)(unsafe.Pointer(addr)), Addr: (*byte)(unsafe.Pointer(&out[0])), Len: uint32(countin)}
61	err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0)
62	return int(ioDesc.Len), err
63}
64