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opt / golang / 1.22.0 / src / cmd / vendor / golang.org / x / sys / unix /

📁 ..
📄 .gitignore(16 B)
📄 README.md(8.48 KB)
📄 affinity_linux.go(1.88 KB)
📄 aliases.go(396 B)
📄 asm_aix_ppc64.s(407 B)
📄 asm_bsd_386.s(696 B)
📄 asm_bsd_amd64.s(722 B)
📄 asm_bsd_arm.s(686 B)
📄 asm_bsd_arm64.s(709 B)
📄 asm_bsd_ppc64.s(716 B)
📄 asm_bsd_riscv64.s(711 B)
📄 asm_linux_386.s(1.44 KB)
📄 asm_linux_amd64.s(1.18 KB)
📄 asm_linux_arm.s(1.11 KB)
📄 asm_linux_arm64.s(1.08 KB)
📄 asm_linux_loong64.s(1.16 KB)
📄 asm_linux_mips64x.s(1.14 KB)
📄 asm_linux_mipsx.s(1.14 KB)
📄 asm_linux_ppc64x.s(909 B)
📄 asm_linux_riscv64.s(1.02 KB)
📄 asm_linux_s390x.s(1.12 KB)
📄 asm_openbsd_mips64.s(677 B)
📄 asm_solaris_amd64.s(423 B)
📄 asm_zos_s390x.s(8.4 KB)
📄 bluetooth_linux.go(680 B)
📄 cap_freebsd.go(5.01 KB)
📄 constants.go(318 B)
📄 dev_aix_ppc.go(739 B)
📄 dev_aix_ppc64.go(858 B)
📄 dev_darwin.go(747 B)
📄 dev_dragonfly.go(1.01 KB)
📄 dev_freebsd.go(1013 B)
📄 dev_linux.go(1.54 KB)
📄 dev_netbsd.go(913 B)
📄 dev_openbsd.go(918 B)
📄 dev_zos.go(830 B)
📄 dirent.go(3.01 KB)
📄 endian_big.go(330 B)
📄 endian_little.go(358 B)
📄 env_unix.go(645 B)
📄 epoll_zos.go(5.02 KB)
📄 fcntl.go(1.05 KB)
📄 fcntl_darwin.go(806 B)
📄 fcntl_linux_32bit.go(436 B)
📄 fdset.go(781 B)
📄 fstatfs_zos.go(4.07 KB)
📄 gccgo.go(1.91 KB)
📄 gccgo_c.c(1.49 KB)
📄 gccgo_linux_amd64.go(436 B)
📄 ifreq_linux.go(4.27 KB)
📄 ioctl_linux.go(8.07 KB)
📄 ioctl_signed.go(2.2 KB)
📄 ioctl_unsigned.go(2.26 KB)
📄 ioctl_zos.go(2.03 KB)
📄 mkall.sh(8.11 KB)
📄 mkerrors.sh(19.56 KB)
📄 mmap_nomremap.go(336 B)
📄 mremap.go(1.36 KB)
📄 pagesize_unix.go(389 B)
📄 pledge_openbsd.go(2.33 KB)
📄 ptrace_darwin.go(315 B)
📄 ptrace_ios.go(284 B)
📄 race.go(629 B)
📄 race0.go(553 B)
📄 readdirent_getdents.go(401 B)
📄 readdirent_getdirentries.go(698 B)
📄 sockcmsg_dragonfly.go(544 B)
📄 sockcmsg_linux.go(2.6 KB)
📄 sockcmsg_unix.go(3.14 KB)
📄 sockcmsg_unix_other.go(1.2 KB)
📄 syscall.go(2.81 KB)
📄 syscall_aix.go(16.1 KB)
📄 syscall_aix_ppc.go(1.27 KB)
📄 syscall_aix_ppc64.go(1.9 KB)
📄 syscall_bsd.go(14.96 KB)
📄 syscall_darwin.go(20.72 KB)
📄 syscall_darwin_amd64.go(1.49 KB)
📄 syscall_darwin_arm64.go(1.41 KB)
📄 syscall_darwin_libSystem.go(1.21 KB)
📄 syscall_dragonfly.go(11.18 KB)
📄 syscall_dragonfly_amd64.go(1.25 KB)
📄 syscall_freebsd.go(15.34 KB)
📄 syscall_freebsd_386.go(1.48 KB)
📄 syscall_freebsd_amd64.go(1.44 KB)
📄 syscall_freebsd_arm.go(1.35 KB)
📄 syscall_freebsd_arm64.go(1.31 KB)
📄 syscall_freebsd_riscv64.go(1.32 KB)
📄 syscall_hurd.go(635 B)
📄 syscall_hurd_386.go(447 B)
📄 syscall_illumos.go(1.76 KB)
📄 syscall_linux.go(74.41 KB)
📄 syscall_linux_386.go(8.88 KB)
📄 syscall_linux_alarm.go(440 B)
📄 syscall_linux_amd64.go(5.28 KB)
📄 syscall_linux_amd64_gc.go(290 B)
📄 syscall_linux_arm.go(6.94 KB)
📄 syscall_linux_arm64.go(5.97 KB)
📄 syscall_linux_gc.go(495 B)
📄 syscall_linux_gc_386.go(585 B)
📄 syscall_linux_gc_arm.go(411 B)
📄 syscall_linux_gccgo_386.go(986 B)
📄 syscall_linux_gccgo_arm.go(596 B)
📄 syscall_linux_loong64.go(6.66 KB)
📄 syscall_linux_mips64x.go(5.83 KB)
📄 syscall_linux_mipsx.go(5.81 KB)
📄 syscall_linux_ppc.go(6.85 KB)
📄 syscall_linux_ppc64x.go(4.98 KB)
📄 syscall_linux_riscv64.go(6.13 KB)
📄 syscall_linux_s390x.go(9.29 KB)
📄 syscall_linux_sparc64.go(4.37 KB)
📄 syscall_netbsd.go(12.35 KB)
📄 syscall_netbsd_386.go(819 B)
📄 syscall_netbsd_amd64.go(814 B)
📄 syscall_netbsd_arm.go(819 B)
📄 syscall_netbsd_arm64.go(814 B)
📄 syscall_openbsd.go(11.04 KB)
📄 syscall_openbsd_386.go(1000 B)
📄 syscall_openbsd_amd64.go(990 B)
📄 syscall_openbsd_arm.go(1000 B)
📄 syscall_openbsd_arm64.go(990 B)
📄 syscall_openbsd_libc.go(1.1 KB)
📄 syscall_openbsd_mips64.go(955 B)
📄 syscall_openbsd_ppc64.go(990 B)
📄 syscall_openbsd_riscv64.go(994 B)
📄 syscall_solaris.go(31.11 KB)
📄 syscall_solaris_amd64.go(593 B)
📄 syscall_unix.go(16.45 KB)
📄 syscall_unix_gc.go(640 B)
📄 syscall_unix_gc_ppc64x.go(786 B)
📄 syscall_zos_s390x.go(52.88 KB)
📄 sysvshm_linux.go(521 B)
📄 sysvshm_unix.go(1.42 KB)
📄 sysvshm_unix_other.go(398 B)
📄 timestruct.go(2.2 KB)
📄 unveil_openbsd.go(1.19 KB)
📄 xattr_bsd.go(5.66 KB)
📄 zerrors_aix_ppc.go(52.42 KB)
📄 zerrors_aix_ppc64.go(52.67 KB)
📄 zerrors_darwin_amd64.go(87.45 KB)
📄 zerrors_darwin_arm64.go(87.45 KB)
📄 zerrors_dragonfly_amd64.go(70.7 KB)
📄 zerrors_freebsd_386.go(79.55 KB)
📄 zerrors_freebsd_amd64.go(79.44 KB)
📄 zerrors_freebsd_arm.go(79.19 KB)
📄 zerrors_freebsd_arm64.go(79.22 KB)
📄 zerrors_freebsd_riscv64.go(83.75 KB)
📄 zerrors_linux.go(180.01 KB)
📄 zerrors_linux_386.go(33.98 KB)
📄 zerrors_linux_amd64.go(34 KB)
📄 zerrors_linux_arm.go(34.22 KB)
📄 zerrors_linux_arm64.go(34.05 KB)
📄 zerrors_linux_loong64.go(33.73 KB)
📄 zerrors_linux_mips.go(34.54 KB)
📄 zerrors_linux_mips64.go(34.54 KB)
📄 zerrors_linux_mips64le.go(34.55 KB)
📄 zerrors_linux_mipsle.go(34.54 KB)
📄 zerrors_linux_ppc.go(36.62 KB)
📄 zerrors_linux_ppc64.go(36.79 KB)
📄 zerrors_linux_ppc64le.go(36.8 KB)
📄 zerrors_linux_riscv64.go(33.59 KB)
📄 zerrors_linux_s390x.go(36.53 KB)
📄 zerrors_linux_sparc64.go(38.61 KB)
📄 zerrors_netbsd_386.go(72.76 KB)
📄 zerrors_netbsd_amd64.go(72.35 KB)
📄 zerrors_netbsd_arm.go(71.89 KB)
📄 zerrors_netbsd_arm64.go(72.35 KB)
📄 zerrors_openbsd_386.go(78.55 KB)
📄 zerrors_openbsd_amd64.go(78.55 KB)
📄 zerrors_openbsd_arm.go(78.54 KB)
📄 zerrors_openbsd_arm64.go(78.55 KB)
📄 zerrors_openbsd_mips64.go(78.55 KB)
📄 zerrors_openbsd_ppc64.go(78.51 KB)
📄 zerrors_openbsd_riscv64.go(78.47 KB)
📄 zerrors_solaris_amd64.go(59 KB)
📄 zerrors_zos_s390x.go(34.47 KB)
📄 zptrace_armnn_linux.go(1.17 KB)
📄 zptrace_linux_arm64.go(721 B)
📄 zptrace_mipsnn_linux.go(1.36 KB)
📄 zptrace_mipsnnle_linux.go(1.41 KB)
📄 zptrace_x86_linux.go(1.81 KB)
📄 zsyscall_aix_ppc.go(35.68 KB)
📄 zsyscall_aix_ppc64.go(30.04 KB)
📄 zsyscall_aix_ppc64_gc.go(42.43 KB)
📄 zsyscall_aix_ppc64_gccgo.go(30.85 KB)
📄 zsyscall_darwin_amd64.go(66.74 KB)
📄 zsyscall_darwin_amd64.s(29.28 KB)
📄 zsyscall_darwin_arm64.go(66.69 KB)
📄 zsyscall_darwin_arm64.s(29.21 KB)
📄 zsyscall_dragonfly_amd64.go(38.79 KB)
📄 zsyscall_freebsd_386.go(45.09 KB)
📄 zsyscall_freebsd_amd64.go(44.9 KB)
📄 zsyscall_freebsd_arm.go(45.13 KB)
📄 zsyscall_freebsd_arm64.go(44.9 KB)
📄 zsyscall_freebsd_riscv64.go(44.91 KB)
📄 zsyscall_illumos_amd64.go(2.63 KB)
📄 zsyscall_linux.go(54.29 KB)
📄 zsyscall_linux_386.go(12.11 KB)
📄 zsyscall_linux_amd64.go(16.5 KB)
📄 zsyscall_linux_arm.go(15.61 KB)
📄 zsyscall_linux_arm64.go(14.22 KB)
📄 zsyscall_linux_loong64.go(12.61 KB)
📄 zsyscall_linux_mips.go(16.76 KB)
📄 zsyscall_linux_mips64.go(16.27 KB)
📄 zsyscall_linux_mips64le.go(16.01 KB)
📄 zsyscall_linux_mipsle.go(16.76 KB)
📄 zsyscall_linux_ppc.go(16.83 KB)
📄 zsyscall_linux_ppc64.go(17.79 KB)
📄 zsyscall_linux_ppc64le.go(17.79 KB)
📄 zsyscall_linux_riscv64.go(14.2 KB)
📄 zsyscall_linux_s390x.go(12.11 KB)
📄 zsyscall_linux_sparc64.go(16.43 KB)
📄 zsyscall_netbsd_386.go(44.13 KB)
📄 zsyscall_netbsd_amd64.go(43.94 KB)
📄 zsyscall_netbsd_arm.go(44.13 KB)
📄 zsyscall_netbsd_arm64.go(43.94 KB)
📄 zsyscall_openbsd_386.go(57.67 KB)
📄 zsyscall_openbsd_386.s(26.7 KB)
📄 zsyscall_openbsd_amd64.go(57.52 KB)
📄 zsyscall_openbsd_amd64.s(26.7 KB)
📄 zsyscall_openbsd_arm.go(57.69 KB)
📄 zsyscall_openbsd_arm.s(26.7 KB)
📄 zsyscall_openbsd_arm64.go(57.52 KB)
📄 zsyscall_openbsd_arm64.s(26.7 KB)
📄 zsyscall_openbsd_mips64.go(57.52 KB)
📄 zsyscall_openbsd_mips64.s(26.7 KB)
📄 zsyscall_openbsd_ppc64.go(57.52 KB)
📄 zsyscall_openbsd_ppc64.s(27.51 KB)
📄 zsyscall_openbsd_riscv64.go(57.53 KB)
📄 zsyscall_openbsd_riscv64.s(26.7 KB)
📄 zsyscall_solaris_amd64.go(59.74 KB)
📄 zsyscall_zos_s390x.go(29.82 KB)
📄 zsysctl_openbsd_386.go(11.93 KB)
📄 zsysctl_openbsd_amd64.go(11.93 KB)
📄 zsysctl_openbsd_arm.go(11.93 KB)
📄 zsysctl_openbsd_arm64.go(11.93 KB)
📄 zsysctl_openbsd_mips64.go(11.93 KB)
📄 zsysctl_openbsd_ppc64.go(11.93 KB)
📄 zsysctl_openbsd_riscv64.go(11.97 KB)
📄 zsysnum_darwin_amd64.go(17.84 KB)
📄 zsysnum_darwin_arm64.go(17.76 KB)
📄 zsysnum_dragonfly_amd64.go(27.61 KB)
📄 zsysnum_freebsd_386.go(36.09 KB)
📄 zsysnum_freebsd_amd64.go(36.1 KB)
📄 zsysnum_freebsd_arm.go(36.09 KB)
📄 zsysnum_freebsd_arm64.go(36.1 KB)
📄 zsysnum_freebsd_riscv64.go(36.1 KB)
📄 zsysnum_linux_386.go(17.38 KB)
📄 zsysnum_linux_amd64.go(12.59 KB)
📄 zsysnum_linux_arm.go(15.99 KB)
📄 zsysnum_linux_arm64.go(10.69 KB)
📄 zsysnum_linux_loong64.go(10.48 KB)
📄 zsysnum_linux_mips.go(17.27 KB)
📄 zsysnum_linux_mips64.go(12.74 KB)
📄 zsysnum_linux_mips64le.go(12.74 KB)
📄 zsysnum_linux_mipsle.go(17.28 KB)
📄 zsysnum_linux_ppc.go(17.02 KB)
📄 zsysnum_linux_ppc64.go(13.95 KB)
📄 zsysnum_linux_ppc64le.go(13.96 KB)
📄 zsysnum_linux_riscv64.go(10.71 KB)
📄 zsysnum_linux_s390x.go(12.84 KB)
📄 zsysnum_linux_sparc64.go(13.26 KB)
📄 zsysnum_netbsd_386.go(25.72 KB)
📄 zsysnum_netbsd_amd64.go(25.73 KB)
📄 zsysnum_netbsd_arm.go(25.72 KB)
📄 zsysnum_netbsd_arm64.go(25.71 KB)
📄 zsysnum_openbsd_386.go(17.91 KB)
📄 zsysnum_openbsd_amd64.go(17.91 KB)
📄 zsysnum_openbsd_arm.go(17.91 KB)
📄 zsysnum_openbsd_arm64.go(17.82 KB)
📄 zsysnum_openbsd_mips64.go(18.05 KB)
📄 zsysnum_openbsd_ppc64.go(17.76 KB)
📄 zsysnum_openbsd_riscv64.go(17.83 KB)
📄 zsysnum_zos_s390x.go(116.99 KB)
📄 ztypes_aix_ppc.go(4.91 KB)
📄 ztypes_aix_ppc64.go(4.98 KB)
📄 ztypes_darwin_amd64.go(12.4 KB)
📄 ztypes_darwin_arm64.go(12.4 KB)
📄 ztypes_dragonfly_amd64.go(6.91 KB)
📄 ztypes_freebsd_386.go(9.63 KB)
📄 ztypes_freebsd_amd64.go(9.68 KB)
📄 ztypes_freebsd_arm.go(9.5 KB)
📄 ztypes_freebsd_arm64.go(9.39 KB)
📄 ztypes_freebsd_riscv64.go(9.46 KB)
📄 ztypes_linux.go(246.65 KB)
📄 ztypes_linux_386.go(12.37 KB)
📄 ztypes_linux_amd64.go(12.56 KB)
📄 ztypes_linux_arm.go(12.33 KB)
📄 ztypes_linux_arm64.go(12.21 KB)
📄 ztypes_linux_loong64.go(12.23 KB)
📄 ztypes_linux_mips.go(12.39 KB)
📄 ztypes_linux_mips64.go(12.26 KB)
📄 ztypes_linux_mips64le.go(12.27 KB)
📄 ztypes_linux_mipsle.go(12.4 KB)
📄 ztypes_linux_ppc.go(12.57 KB)
📄 ztypes_linux_ppc64.go(12.4 KB)
📄 ztypes_linux_ppc64le.go(12.41 KB)
📄 ztypes_linux_riscv64.go(13.44 KB)
📄 ztypes_linux_s390x.go(12.7 KB)
📄 ztypes_linux_sparc64.go(12.26 KB)
📄 ztypes_netbsd_386.go(9.46 KB)
📄 ztypes_netbsd_amd64.go(9.65 KB)
📄 ztypes_netbsd_arm.go(9.59 KB)
📄 ztypes_netbsd_arm64.go(9.65 KB)
📄 ztypes_openbsd_386.go(9.24 KB)
📄 ztypes_openbsd_amd64.go(9.25 KB)
📄 ztypes_openbsd_arm.go(9.38 KB)
📄 ztypes_openbsd_arm64.go(9.26 KB)
📄 ztypes_openbsd_mips64.go(9.26 KB)
📄 ztypes_openbsd_ppc64.go(9.28 KB)
📄 ztypes_openbsd_riscv64.go(9.29 KB)
📄 ztypes_solaris_amd64.go(7.53 KB)
📄 ztypes_zos_s390x.go(6.66 KB)

Editing: syscall_aix.go

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build aix

// Aix system calls.
// This file is compiled as ordinary Go code,
// but it is also input to mksyscall,
// which parses the //sys lines and generates system call stubs.
// Note that sometimes we use a lowercase //sys name and
// wrap it in our own nicer implementation.

package unix

import "unsafe"

/*
 * Wrapped
 */

func Access(path string, mode uint32) (err error) {
	return Faccessat(AT_FDCWD, path, mode, 0)
}

func Chmod(path string, mode uint32) (err error) {
	return Fchmodat(AT_FDCWD, path, mode, 0)
}

func Chown(path string, uid int, gid int) (err error) {
	return Fchownat(AT_FDCWD, path, uid, gid, 0)
}

func Creat(path string, mode uint32) (fd int, err error) {
	return Open(path, O_CREAT|O_WRONLY|O_TRUNC, mode)
}

//sys	utimes(path string, times *[2]Timeval) (err error)

func Utimes(path string, tv []Timeval) error {
	if len(tv) != 2 {
		return EINVAL
	}
	return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
}

//sys	utimensat(dirfd int, path string, times *[2]Timespec, flag int) (err error)

func UtimesNano(path string, ts []Timespec) error {
	if len(ts) != 2 {
		return EINVAL
	}
	return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
}

func UtimesNanoAt(dirfd int, path string, ts []Timespec, flags int) error {
	if ts == nil {
		return utimensat(dirfd, path, nil, flags)
	}
	if len(ts) != 2 {
		return EINVAL
	}
	return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), flags)
}

func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, _Socklen, error) {
	if sa.Port < 0 || sa.Port > 0xFFFF {
		return nil, 0, EINVAL
	}
	sa.raw.Family = AF_INET
	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
	p[0] = byte(sa.Port >> 8)
	p[1] = byte(sa.Port)
	sa.raw.Addr = sa.Addr
	return unsafe.Pointer(&sa.raw), SizeofSockaddrInet4, nil
}

func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, _Socklen, error) {
	if sa.Port < 0 || sa.Port > 0xFFFF {
		return nil, 0, EINVAL
	}
	sa.raw.Family = AF_INET6
	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
	p[0] = byte(sa.Port >> 8)
	p[1] = byte(sa.Port)
	sa.raw.Scope_id = sa.ZoneId
	sa.raw.Addr = sa.Addr
	return unsafe.Pointer(&sa.raw), SizeofSockaddrInet6, nil
}

func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
	name := sa.Name
	n := len(name)
	if n > len(sa.raw.Path) {
		return nil, 0, EINVAL
	}
	if n == len(sa.raw.Path) && name[0] != '@' {
		return nil, 0, EINVAL
	}
	sa.raw.Family = AF_UNIX
	for i := 0; i < n; i++ {
		sa.raw.Path[i] = uint8(name[i])
	}
	// length is family (uint16), name, NUL.
	sl := _Socklen(2)
	if n > 0 {
		sl += _Socklen(n) + 1
	}
	if sa.raw.Path[0] == '@' || (sa.raw.Path[0] == 0 && sl > 3) {
		// Check sl > 3 so we don't change unnamed socket behavior.
		sa.raw.Path[0] = 0
		// Don't count trailing NUL for abstract address.
		sl--
	}

return unsafe.Pointer(&sa.raw), sl, nil
}

func Getsockname(fd int) (sa Sockaddr, err error) {
	var rsa RawSockaddrAny
	var len _Socklen = SizeofSockaddrAny
	if err = getsockname(fd, &rsa, &len); err != nil {
		return
	}
	return anyToSockaddr(fd, &rsa)
}

//sys	getcwd(buf []byte) (err error)

const ImplementsGetwd = true

func Getwd() (ret string, err error) {
	for len := uint64(4096); ; len *= 2 {
		b := make([]byte, len)
		err := getcwd(b)
		if err == nil {
			i := 0
			for b[i] != 0 {
				i++
			}
			return string(b[0:i]), nil
		}
		if err != ERANGE {
			return "", err
		}
	}
}

func Getcwd(buf []byte) (n int, err error) {
	err = getcwd(buf)
	if err == nil {
		i := 0
		for buf[i] != 0 {
			i++
		}
		n = i + 1
	}
	return
}

func Getgroups() (gids []int, err error) {
	n, err := getgroups(0, nil)
	if err != nil {
		return nil, err
	}
	if n == 0 {
		return nil, nil
	}

// Sanity check group count. Max is 16 on BSD.
	if n < 0 || n > 1000 {
		return nil, EINVAL
	}

a := make([]_Gid_t, n)
	n, err = getgroups(n, &a[0])
	if err != nil {
		return nil, err
	}
	gids = make([]int, n)
	for i, v := range a[0:n] {
		gids[i] = int(v)
	}
	return
}

func Setgroups(gids []int) (err error) {
	if len(gids) == 0 {
		return setgroups(0, nil)
	}

a := make([]_Gid_t, len(gids))
	for i, v := range gids {
		a[i] = _Gid_t(v)
	}
	return setgroups(len(a), &a[0])
}

/*
 * Socket
 */

//sys	accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)

func Accept(fd int) (nfd int, sa Sockaddr, err error) {
	var rsa RawSockaddrAny
	var len _Socklen = SizeofSockaddrAny
	nfd, err = accept(fd, &rsa, &len)
	if nfd == -1 {
		return
	}
	sa, err = anyToSockaddr(fd, &rsa)
	if err != nil {
		Close(nfd)
		nfd = 0
	}
	return
}

func recvmsgRaw(fd int, iov []Iovec, oob []byte, flags int, rsa *RawSockaddrAny) (n, oobn int, recvflags int, err error) {
	var msg Msghdr
	msg.Name = (*byte)(unsafe.Pointer(rsa))
	msg.Namelen = uint32(SizeofSockaddrAny)
	var dummy byte
	if len(oob) > 0 {
		// receive at least one normal byte
		if emptyIovecs(iov) {
			var iova [1]Iovec
			iova[0].Base = &dummy
			iova[0].SetLen(1)
			iov = iova[:]
		}
		msg.Control = (*byte)(unsafe.Pointer(&oob[0]))
		msg.SetControllen(len(oob))
	}
	if len(iov) > 0 {
		msg.Iov = &iov[0]
		msg.SetIovlen(len(iov))
	}
	if n, err = recvmsg(fd, &msg, flags); n == -1 {
		return
	}
	oobn = int(msg.Controllen)
	recvflags = int(msg.Flags)
	return
}

func sendmsgN(fd int, iov []Iovec, oob []byte, ptr unsafe.Pointer, salen _Socklen, flags int) (n int, err error) {
	var msg Msghdr
	msg.Name = (*byte)(unsafe.Pointer(ptr))
	msg.Namelen = uint32(salen)
	var dummy byte
	var empty bool
	if len(oob) > 0 {
		// send at least one normal byte
		empty = emptyIovecs(iov)
		if empty {
			var iova [1]Iovec
			iova[0].Base = &dummy
			iova[0].SetLen(1)
			iov = iova[:]
		}
		msg.Control = (*byte)(unsafe.Pointer(&oob[0]))
		msg.SetControllen(len(oob))
	}
	if len(iov) > 0 {
		msg.Iov = &iov[0]
		msg.SetIovlen(len(iov))
	}
	if n, err = sendmsg(fd, &msg, flags); err != nil {
		return 0, err
	}
	if len(oob) > 0 && empty {
		n = 0
	}
	return n, nil
}

func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
	switch rsa.Addr.Family {

case AF_UNIX:
		pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
		sa := new(SockaddrUnix)

// Some versions of AIX have a bug in getsockname (see IV78655).
		// We can't rely on sa.Len being set correctly.
		n := SizeofSockaddrUnix - 3 // subtract leading Family, Len, terminating NUL.
		for i := 0; i < n; i++ {
			if pp.Path[i] == 0 {
				n = i
				break
			}
		}
		sa.Name = string(unsafe.Slice((*byte)(unsafe.Pointer(&pp.Path[0])), n))
		return sa, nil

case AF_INET:
		pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
		sa := new(SockaddrInet4)
		p := (*[2]byte)(unsafe.Pointer(&pp.Port))
		sa.Port = int(p[0])<<8 + int(p[1])
		sa.Addr = pp.Addr
		return sa, nil

case AF_INET6:
		pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
		sa := new(SockaddrInet6)
		p := (*[2]byte)(unsafe.Pointer(&pp.Port))
		sa.Port = int(p[0])<<8 + int(p[1])
		sa.ZoneId = pp.Scope_id
		sa.Addr = pp.Addr
		return sa, nil
	}
	return nil, EAFNOSUPPORT
}

func Gettimeofday(tv *Timeval) (err error) {
	err = gettimeofday(tv, nil)
	return
}

func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
	if raceenabled {
		raceReleaseMerge(unsafe.Pointer(&ioSync))
	}
	return sendfile(outfd, infd, offset, count)
}

// TODO
func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
	return -1, ENOSYS
}

func direntIno(buf []byte) (uint64, bool) {
	return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino))
}

func direntReclen(buf []byte) (uint64, bool) {
	return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen))
}

func direntNamlen(buf []byte) (uint64, bool) {
	reclen, ok := direntReclen(buf)
	if !ok {
		return 0, false
	}
	return reclen - uint64(unsafe.Offsetof(Dirent{}.Name)), true
}

//sys	getdirent(fd int, buf []byte) (n int, err error)

func Getdents(fd int, buf []byte) (n int, err error) {
	return getdirent(fd, buf)
}

//sys	wait4(pid Pid_t, status *_C_int, options int, rusage *Rusage) (wpid Pid_t, err error)

func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) {
	var status _C_int
	var r Pid_t
	err = ERESTART
	// AIX wait4 may return with ERESTART errno, while the processus is still
	// active.
	for err == ERESTART {
		r, err = wait4(Pid_t(pid), &status, options, rusage)
	}
	wpid = int(r)
	if wstatus != nil {
		*wstatus = WaitStatus(status)
	}
	return
}

/*
 * Wait
 */

type WaitStatus uint32

func (w WaitStatus) Stopped() bool { return w&0x40 != 0 }
func (w WaitStatus) StopSignal() Signal {
	if !w.Stopped() {
		return -1
	}
	return Signal(w>>8) & 0xFF
}

func (w WaitStatus) Exited() bool { return w&0xFF == 0 }
func (w WaitStatus) ExitStatus() int {
	if !w.Exited() {
		return -1
	}
	return int((w >> 8) & 0xFF)
}

func (w WaitStatus) Signaled() bool { return w&0x40 == 0 && w&0xFF != 0 }
func (w WaitStatus) Signal() Signal {
	if !w.Signaled() {
		return -1
	}
	return Signal(w>>16) & 0xFF
}

func (w WaitStatus) Continued() bool { return w&0x01000000 != 0 }

func (w WaitStatus) CoreDump() bool { return w&0x80 == 0x80 }

func (w WaitStatus) TrapCause() int { return -1 }

//sys	ioctl(fd int, req int, arg uintptr) (err error)
//sys	ioctlPtr(fd int, req int, arg unsafe.Pointer) (err error) = ioctl

// fcntl must never be called with cmd=F_DUP2FD because it doesn't work on AIX
// There is no way to create a custom fcntl and to keep //sys fcntl easily,
// Therefore, the programmer must call dup2 instead of fcntl in this case.

// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
//sys	FcntlInt(fd uintptr, cmd int, arg int) (r int,err error) = fcntl

// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
//sys	FcntlFlock(fd uintptr, cmd int, lk *Flock_t) (err error) = fcntl

//sys	fcntl(fd int, cmd int, arg int) (val int, err error)

//sys	fsyncRange(fd int, how int, start int64, length int64) (err error) = fsync_range

func Fsync(fd int) error {
	return fsyncRange(fd, O_SYNC, 0, 0)
}

/*
 * Direct access
 */

//sys	Acct(path string) (err error)
//sys	Chdir(path string) (err error)
//sys	Chroot(path string) (err error)
//sys	Close(fd int) (err error)
//sys	Dup(oldfd int) (fd int, err error)
//sys	Exit(code int)
//sys	Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
//sys	Fchdir(fd int) (err error)
//sys	Fchmod(fd int, mode uint32) (err error)
//sys	Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
//sys	Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
//sys	Fdatasync(fd int) (err error)
// readdir_r
//sysnb	Getpgid(pid int) (pgid int, err error)

//sys	Getpgrp() (pid int)

//sysnb	Getpid() (pid int)
//sysnb	Getppid() (ppid int)
//sys	Getpriority(which int, who int) (prio int, err error)
//sysnb	Getrusage(who int, rusage *Rusage) (err error)
//sysnb	Getsid(pid int) (sid int, err error)
//sysnb	Kill(pid int, sig Signal) (err error)
//sys	Klogctl(typ int, buf []byte) (n int, err error) = syslog
//sys	Mkdir(dirfd int, path string, mode uint32) (err error)
//sys	Mkdirat(dirfd int, path string, mode uint32) (err error)
//sys	Mkfifo(path string, mode uint32) (err error)
//sys	Mknod(path string, mode uint32, dev int) (err error)
//sys	Mknodat(dirfd int, path string, mode uint32, dev int) (err error)
//sys	Nanosleep(time *Timespec, leftover *Timespec) (err error)
//sys	Open(path string, mode int, perm uint32) (fd int, err error) = open64
//sys	Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
//sys	read(fd int, p []byte) (n int, err error)
//sys	Readlink(path string, buf []byte) (n int, err error)
//sys	Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
//sys	Setdomainname(p []byte) (err error)
//sys	Sethostname(p []byte) (err error)
//sysnb	Setpgid(pid int, pgid int) (err error)
//sysnb	Setsid() (pid int, err error)
//sysnb	Settimeofday(tv *Timeval) (err error)

//sys	Setuid(uid int) (err error)
//sys	Setgid(uid int) (err error)

//sys	Setpriority(which int, who int, prio int) (err error)
//sys	Statx(dirfd int, path string, flags int, mask int, stat *Statx_t) (err error)
//sys	Sync()
//sysnb	Times(tms *Tms) (ticks uintptr, err error)
//sysnb	Umask(mask int) (oldmask int)
//sysnb	Uname(buf *Utsname) (err error)
//sys	Unlink(path string) (err error)
//sys	Unlinkat(dirfd int, path string, flags int) (err error)
//sys	Ustat(dev int, ubuf *Ustat_t) (err error)
//sys	write(fd int, p []byte) (n int, err error)

//sys	Dup2(oldfd int, newfd int) (err error)
//sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = posix_fadvise64
//sys	Fchown(fd int, uid int, gid int) (err error)
//sys	fstat(fd int, stat *Stat_t) (err error)
//sys	fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = fstatat
//sys	Fstatfs(fd int, buf *Statfs_t) (err error)
//sys	Ftruncate(fd int, length int64) (err error)
//sysnb	Getegid() (egid int)
//sysnb	Geteuid() (euid int)
//sysnb	Getgid() (gid int)
//sysnb	Getuid() (uid int)
//sys	Lchown(path string, uid int, gid int) (err error)
//sys	Listen(s int, n int) (err error)
//sys	lstat(path string, stat *Stat_t) (err error)
//sys	Pause() (err error)
//sys	pread(fd int, p []byte, offset int64) (n int, err error) = pread64
//sys	pwrite(fd int, p []byte, offset int64) (n int, err error) = pwrite64
//sys	Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
//sys	Pselect(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *Sigset_t) (n int, err error)
//sysnb	Setregid(rgid int, egid int) (err error)
//sysnb	Setreuid(ruid int, euid int) (err error)
//sys	Shutdown(fd int, how int) (err error)
//sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
//sys	stat(path string, statptr *Stat_t) (err error)
//sys	Statfs(path string, buf *Statfs_t) (err error)
//sys	Truncate(path string, length int64) (err error)

//sys	bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
//sys	connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
//sysnb	getgroups(n int, list *_Gid_t) (nn int, err error)
//sysnb	setgroups(n int, list *_Gid_t) (err error)
//sys	getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
//sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
//sysnb	socket(domain int, typ int, proto int) (fd int, err error)
//sysnb	socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
//sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
//sysnb	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
//sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
//sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)

// In order to use msghdr structure with Control, Controllen, nrecvmsg and nsendmsg must be used.
//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = nrecvmsg
//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = nsendmsg

//sys	munmap(addr uintptr, length uintptr) (err error)
//sys	Madvise(b []byte, advice int) (err error)
//sys	Mprotect(b []byte, prot int) (err error)
//sys	Mlock(b []byte) (err error)
//sys	Mlockall(flags int) (err error)
//sys	Msync(b []byte, flags int) (err error)
//sys	Munlock(b []byte) (err error)
//sys	Munlockall() (err error)

//sysnb	pipe(p *[2]_C_int) (err error)

func Pipe(p []int) (err error) {
	if len(p) != 2 {
		return EINVAL
	}
	var pp [2]_C_int
	err = pipe(&pp)
	if err == nil {
		p[0] = int(pp[0])
		p[1] = int(pp[1])
	}
	return
}

//sys	poll(fds *PollFd, nfds int, timeout int) (n int, err error)

func Poll(fds []PollFd, timeout int) (n int, err error) {
	if len(fds) == 0 {
		return poll(nil, 0, timeout)
	}
	return poll(&fds[0], len(fds), timeout)
}

//sys	gettimeofday(tv *Timeval, tzp *Timezone) (err error)
//sysnb	Time(t *Time_t) (tt Time_t, err error)
//sys	Utime(path string, buf *Utimbuf) (err error)

//sys	Getsystemcfg(label int) (n uint64)

//sys	umount(target string) (err error)

func Unmount(target string, flags int) (err error) {
	if flags != 0 {
		// AIX doesn't have any flags for umount.
		return ENOSYS
	}
	return umount(target)
}

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