Make Nix builds work

1 files changed, 1104 insertions, 0 deletions

diff --git a/vendor/golang.org/x/sys/unix/syscall_solaris.go b/vendor/golang.org/x/sys/unix/syscall_solaris.go
new file mode 100644
index 0000000..21974af
--- /dev/null
+++ b/vendor/golang.org/x/sys/unix/syscall_solaris.go
@@ -0,0 +1,1104 @@
+// Copyright 2009 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.
+
+// Solaris 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, either here or in
+// syscall_solaris.go or syscall_unix.go.
+
+package unix
+
+import (
+        "fmt"
+        "os"
+        "runtime"
+        "sync"
+        "syscall"
+        "unsafe"
+)
+
+// Implemented in runtime/syscall_solaris.go.
+type syscallFunc uintptr
+
+func rawSysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
+func sysvicall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)
+
+// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
+type SockaddrDatalink struct {
+        Family uint16
+        Index  uint16
+        Type   uint8
+        Nlen   uint8
+        Alen   uint8
+        Slen   uint8
+        Data   [244]int8
+        raw    RawSockaddrDatalink
+}
+
+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
+}
+
+//sysnb pipe(p *[2]_C_int) (n int, err error)
+
+func Pipe(p []int) (err error) {
+        if len(p) != 2 {
+                return EINVAL
+        }
+        var pp [2]_C_int
+        n, err := pipe(&pp)
+        if n != 0 {
+                return err
+        }
+        if err == nil {
+                p[0] = int(pp[0])
+                p[1] = int(pp[1])
+        }
+        return nil
+}
+
+//sysnb pipe2(p *[2]_C_int, flags int) (err error)
+
+func Pipe2(p []int, flags int) error {
+        if len(p) != 2 {
+                return EINVAL
+        }
+        var pp [2]_C_int
+        err := pipe2(&pp, flags)
+        if err == nil {
+                p[0] = int(pp[0])
+                p[1] = int(pp[1])
+        }
+        return err
+}
+
+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
+        }
+        sa.raw.Family = AF_UNIX
+        for i := 0; i < n; i++ {
+                sa.raw.Path[i] = int8(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
+}
+
+//sys   getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getsockname
+
+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)
+}
+
+// GetsockoptString returns the string value of the socket option opt for the
+// socket associated with fd at the given socket level.
+func GetsockoptString(fd, level, opt int) (string, error) {
+        buf := make([]byte, 256)
+        vallen := _Socklen(len(buf))
+        err := getsockopt(fd, level, opt, unsafe.Pointer(&buf[0]), &vallen)
+        if err != nil {
+                return "", err
+        }
+        return ByteSliceToString(buf[:vallen]), nil
+}
+
+const ImplementsGetwd = true
+
+//sys   Getcwd(buf []byte) (n int, err error)
+
+func Getwd() (wd string, err error) {
+        var buf [PathMax]byte
+        // Getcwd will return an error if it failed for any reason.
+        _, err = Getcwd(buf[0:])
+        if err != nil {
+                return "", err
+        }
+        n := clen(buf[:])
+        if n < 1 {
+                return "", EINVAL
+        }
+        return string(buf[:n]), nil
+}
+
+/*
+ * Wrapped
+ */
+
+//sysnb getgroups(ngid int, gid *_Gid_t) (n int, err error)
+//sysnb setgroups(ngid int, gid *_Gid_t) (err error)
+
+func Getgroups() (gids []int, err error) {
+        n, err := getgroups(0, nil)
+        // Check for error and sanity check group count. Newer versions of
+        // Solaris allow up to 1024 (NGROUPS_MAX).
+        if n < 0 || n > 1024 {
+                if err != nil {
+                        return nil, err
+                }
+                return nil, EINVAL
+        } else if n == 0 {
+                return nil, nil
+        }
+
+        a := make([]_Gid_t, n)
+        n, err = getgroups(n, &a[0])
+        if n == -1 {
+                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])
+}
+
+// ReadDirent reads directory entries from fd and writes them into buf.
+func ReadDirent(fd int, buf []byte) (n int, err error) {
+        // Final argument is (basep *uintptr) and the syscall doesn't take nil.
+        // TODO(rsc): Can we use a single global basep for all calls?
+        return Getdents(fd, buf, new(uintptr))
+}
+
+// Wait status is 7 bits at bottom, either 0 (exited),
+// 0x7F (stopped), or a signal number that caused an exit.
+// The 0x80 bit is whether there was a core dump.
+// An extra number (exit code, signal causing a stop)
+// is in the high bits.
+
+type WaitStatus uint32
+
+const (
+        mask  = 0x7F
+        core  = 0x80
+        shift = 8
+
+        exited  = 0
+        stopped = 0x7F
+)
+
+func (w WaitStatus) Exited() bool { return w&mask == exited }
+
+func (w WaitStatus) ExitStatus() int {
+        if w&mask != exited {
+                return -1
+        }
+        return int(w >> shift)
+}
+
+func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
+
+func (w WaitStatus) Signal() syscall.Signal {
+        sig := syscall.Signal(w & mask)
+        if sig == stopped || sig == 0 {
+                return -1
+        }
+        return sig
+}
+
+func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
+
+func (w WaitStatus) Stopped() bool { return w&mask == stopped && syscall.Signal(w>>shift) != SIGSTOP }
+
+func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP }
+
+func (w WaitStatus) StopSignal() syscall.Signal {
+        if !w.Stopped() {
+                return -1
+        }
+        return syscall.Signal(w>>shift) & 0xFF
+}
+
+func (w WaitStatus) TrapCause() int { return -1 }
+
+//sys   wait4(pid int32, statusp *_C_int, options int, rusage *Rusage) (wpid int32, err error)
+
+func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (int, error) {
+        var status _C_int
+        rpid, err := wait4(int32(pid), &status, options, rusage)
+        wpid := int(rpid)
+        if wpid == -1 {
+                return wpid, err
+        }
+        if wstatus != nil {
+                *wstatus = WaitStatus(status)
+        }
+        return wpid, nil
+}
+
+//sys   gethostname(buf []byte) (n int, err error)
+
+func Gethostname() (name string, err error) {
+        var buf [MaxHostNameLen]byte
+        n, err := gethostname(buf[:])
+        if n != 0 {
+                return "", err
+        }
+        n = clen(buf[:])
+        if n < 1 {
+                return "", EFAULT
+        }
+        return string(buf[:n]), nil
+}
+
+//sys   utimes(path string, times *[2]Timeval) (err error)
+
+func Utimes(path string, tv []Timeval) (err error) {
+        if tv == nil {
+                return utimes(path, nil)
+        }
+        if len(tv) != 2 {
+                return EINVAL
+        }
+        return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+//sys   utimensat(fd int, path string, times *[2]Timespec, flag int) (err error)
+
+func UtimesNano(path string, ts []Timespec) error {
+        if ts == nil {
+                return utimensat(AT_FDCWD, path, nil, 0)
+        }
+        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)
+}
+
+//sys   fcntl(fd int, cmd int, arg int) (val int, err error)
+
+// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
+func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
+        valptr, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(arg), 0, 0, 0)
+        var err error
+        if errno != 0 {
+                err = errno
+        }
+        return int(valptr), err
+}
+
+// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
+func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
+        _, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(unsafe.Pointer(lk)), 0, 0, 0)
+        if e1 != 0 {
+                return e1
+        }
+        return nil
+}
+
+//sys   futimesat(fildes int, path *byte, times *[2]Timeval) (err error)
+
+func Futimesat(dirfd int, path string, tv []Timeval) error {
+        pathp, err := BytePtrFromString(path)
+        if err != nil {
+                return err
+        }
+        if tv == nil {
+                return futimesat(dirfd, pathp, nil)
+        }
+        if len(tv) != 2 {
+                return EINVAL
+        }
+        return futimesat(dirfd, pathp, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+// Solaris doesn't have an futimes function because it allows NULL to be
+// specified as the path for futimesat. However, Go doesn't like
+// NULL-style string interfaces, so this simple wrapper is provided.
+func Futimes(fd int, tv []Timeval) error {
+        if tv == nil {
+                return futimesat(fd, nil, nil)
+        }
+        if len(tv) != 2 {
+                return EINVAL
+        }
+        return futimesat(fd, nil, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
+}
+
+func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
+        switch rsa.Addr.Family {
+        case AF_UNIX:
+                pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
+                sa := new(SockaddrUnix)
+                // Assume path ends at NUL.
+                // This is not technically the Solaris semantics for
+                // abstract Unix domain sockets -- they are supposed
+                // to be uninterpreted fixed-size binary blobs -- but
+                // everyone uses this convention.
+                n := 0
+                for n < len(pp.Path) && pp.Path[n] != 0 {
+                        n++
+                }
+                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
+}
+
+//sys   accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) = libsocket.accept
+
+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
+}
+
+//sys   recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_recvmsg
+
+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.Accrightslen = int32(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.Accrightslen)
+        return
+}
+
+//sys   sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_sendmsg
+
+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.Accrightslen = int32(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
+}
+
+//sys   acct(path *byte) (err error)
+
+func Acct(path string) (err error) {
+        if len(path) == 0 {
+                // Assume caller wants to disable accounting.
+                return acct(nil)
+        }
+
+        pathp, err := BytePtrFromString(path)
+        if err != nil {
+                return err
+        }
+        return acct(pathp)
+}
+
+//sys   __makedev(version int, major uint, minor uint) (val uint64)
+
+func Mkdev(major, minor uint32) uint64 {
+        return __makedev(NEWDEV, uint(major), uint(minor))
+}
+
+//sys   __major(version int, dev uint64) (val uint)
+
+func Major(dev uint64) uint32 {
+        return uint32(__major(NEWDEV, dev))
+}
+
+//sys   __minor(version int, dev uint64) (val uint)
+
+func Minor(dev uint64) uint32 {
+        return uint32(__minor(NEWDEV, dev))
+}
+
+/*
+ * Expose the ioctl function
+ */
+
+//sys   ioctlRet(fd int, req int, arg uintptr) (ret int, err error) = libc.ioctl
+//sys   ioctlPtrRet(fd int, req int, arg unsafe.Pointer) (ret int, err error) = libc.ioctl
+
+func ioctl(fd int, req int, arg uintptr) (err error) {
+        _, err = ioctlRet(fd, req, arg)
+        return err
+}
+
+func ioctlPtr(fd int, req int, arg unsafe.Pointer) (err error) {
+        _, err = ioctlPtrRet(fd, req, arg)
+        return err
+}
+
+func IoctlSetTermio(fd int, req int, value *Termio) error {
+        return ioctlPtr(fd, req, unsafe.Pointer(value))
+}
+
+func IoctlGetTermio(fd int, req int) (*Termio, error) {
+        var value Termio
+        err := ioctlPtr(fd, req, unsafe.Pointer(&value))
+        return &value, err
+}
+
+//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)
+}
+
+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)
+}
+
+/*
+ * Exposed directly
+ */
+//sys   Access(path string, mode uint32) (err error)
+//sys   Adjtime(delta *Timeval, olddelta *Timeval) (err error)
+//sys   Chdir(path string) (err error)
+//sys   Chmod(path string, mode uint32) (err error)
+//sys   Chown(path string, uid int, gid int) (err error)
+//sys   Chroot(path string) (err error)
+//sys   ClockGettime(clockid int32, time *Timespec) (err error)
+//sys   Close(fd int) (err error)
+//sys   Creat(path string, mode uint32) (fd int, err error)
+//sys   Dup(fd int) (nfd int, err error)
+//sys   Dup2(oldfd int, newfd 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   Fchown(fd int, uid int, gid int) (err error)
+//sys   Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
+//sys   Fdatasync(fd int) (err error)
+//sys   Flock(fd int, how int) (err error)
+//sys   Fpathconf(fd int, name int) (val int, err error)
+//sys   Fstat(fd int, stat *Stat_t) (err error)
+//sys   Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
+//sys   Fstatvfs(fd int, vfsstat *Statvfs_t) (err error)
+//sys   Getdents(fd int, buf []byte, basep *uintptr) (n int, err error)
+//sysnb Getgid() (gid int)
+//sysnb Getpid() (pid int)
+//sysnb Getpgid(pid int) (pgid int, err error)
+//sysnb Getpgrp() (pgid int, err error)
+//sys   Geteuid() (euid int)
+//sys   Getegid() (egid int)
+//sys   Getppid() (ppid int)
+//sys   Getpriority(which int, who int) (n int, err error)
+//sysnb Getrlimit(which int, lim *Rlimit) (err error)
+//sysnb Getrusage(who int, rusage *Rusage) (err error)
+//sysnb Getsid(pid int) (sid int, err error)
+//sysnb Gettimeofday(tv *Timeval) (err error)
+//sysnb Getuid() (uid int)
+//sys   Kill(pid int, signum syscall.Signal) (err error)
+//sys   Lchown(path string, uid int, gid int) (err error)
+//sys   Link(path string, link string) (err error)
+//sys   Listen(s int, backlog int) (err error) = libsocket.__xnet_llisten
+//sys   Lstat(path string, stat *Stat_t) (err error)
+//sys   Madvise(b []byte, advice int) (err error)
+//sys   Mkdir(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   Mkfifoat(dirfd int, 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   Mlock(b []byte) (err error)
+//sys   Mlockall(flags int) (err error)
+//sys   Mprotect(b []byte, prot int) (err error)
+//sys   Msync(b []byte, flags int) (err error)
+//sys   Munlock(b []byte) (err error)
+//sys   Munlockall() (err error)
+//sys   Nanosleep(time *Timespec, leftover *Timespec) (err error)
+//sys   Open(path string, mode int, perm uint32) (fd int, err error)
+//sys   Openat(dirfd int, path string, flags int, mode uint32) (fd int, err error)
+//sys   Pathconf(path string, name int) (val int, err error)
+//sys   Pause() (err error)
+//sys   pread(fd int, p []byte, offset int64) (n int, err error)
+//sys   pwrite(fd int, p []byte, offset int64) (n int, err error)
+//sys   read(fd int, p []byte) (n int, err error)
+//sys   Readlink(path string, buf []byte) (n int, err error)
+//sys   Rename(from string, to string) (err error)
+//sys   Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
+//sys   Rmdir(path string) (err error)
+//sys   Seek(fd int, offset int64, whence int) (newoffset int64, err error) = lseek
+//sys   Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
+//sysnb Setegid(egid int) (err error)
+//sysnb Seteuid(euid int) (err error)
+//sysnb Setgid(gid int) (err error)
+//sys   Sethostname(p []byte) (err error)
+//sysnb Setpgid(pid int, pgid int) (err error)
+//sys   Setpriority(which int, who int, prio int) (err error)
+//sysnb Setregid(rgid int, egid int) (err error)
+//sysnb Setreuid(ruid int, euid int) (err error)
+//sysnb Setsid() (pid int, err error)
+//sysnb Setuid(uid int) (err error)
+//sys   Shutdown(s int, how int) (err error) = libsocket.shutdown
+//sys   Stat(path string, stat *Stat_t) (err error)
+//sys   Statvfs(path string, vfsstat *Statvfs_t) (err error)
+//sys   Symlink(path string, link string) (err error)
+//sys   Sync() (err error)
+//sys   Sysconf(which int) (n int64, err error)
+//sysnb Times(tms *Tms) (ticks uintptr, err error)
+//sys   Truncate(path string, length int64) (err error)
+//sys   Fsync(fd int) (err error)
+//sys   Ftruncate(fd int, length int64) (err error)
+//sys   Umask(mask int) (oldmask int)
+//sysnb Uname(buf *Utsname) (err error)
+//sys   Unmount(target string, flags int) (err error) = libc.umount
+//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   Utime(path string, buf *Utimbuf) (err error)
+//sys   bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_bind
+//sys   connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_connect
+//sys   mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
+//sys   munmap(addr uintptr, length uintptr) (err error)
+//sys   sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = libsendfile.sendfile
+//sys   sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) = libsocket.__xnet_sendto
+//sys   socket(domain int, typ int, proto int) (fd int, err error) = libsocket.__xnet_socket
+//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) = libsocket.__xnet_socketpair
+//sys   write(fd int, p []byte) (n int, err error)
+//sys   getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) = libsocket.__xnet_getsockopt
+//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) = libsocket.getpeername
+//sys   setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) = libsocket.setsockopt
+//sys   recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) = libsocket.recvfrom
+
+// Event Ports
+
+type fileObjCookie struct {
+        fobj   *fileObj
+        cookie interface{}
+}
+
+// EventPort provides a safe abstraction on top of Solaris/illumos Event Ports.
+type EventPort struct {
+        port  int
+        mu    sync.Mutex
+        fds   map[uintptr]*fileObjCookie
+        paths map[string]*fileObjCookie
+        // The user cookie presents an interesting challenge from a memory management perspective.
+        // There are two paths by which we can discover that it is no longer in use:
+        // 1. The user calls port_dissociate before any events fire
+        // 2. An event fires and we return it to the user
+        // The tricky situation is if the event has fired in the kernel but
+        // the user hasn't requested/received it yet.
+        // If the user wants to port_dissociate before the event has been processed,
+        // we should handle things gracefully. To do so, we need to keep an extra
+        // reference to the cookie around until the event is processed
+        // thus the otherwise seemingly extraneous "cookies" map
+        // The key of this map is a pointer to the corresponding fCookie
+        cookies map[*fileObjCookie]struct{}
+}
+
+// PortEvent is an abstraction of the port_event C struct.
+// Compare Source against PORT_SOURCE_FILE or PORT_SOURCE_FD
+// to see if Path or Fd was the event source. The other will be
+// uninitialized.
+type PortEvent struct {
+        Cookie interface{}
+        Events int32
+        Fd     uintptr
+        Path   string
+        Source uint16
+        fobj   *fileObj
+}
+
+// NewEventPort creates a new EventPort including the
+// underlying call to port_create(3c).
+func NewEventPort() (*EventPort, error) {
+        port, err := port_create()
+        if err != nil {
+                return nil, err
+        }
+        e := &EventPort{
+                port:    port,
+                fds:     make(map[uintptr]*fileObjCookie),
+                paths:   make(map[string]*fileObjCookie),
+                cookies: make(map[*fileObjCookie]struct{}),
+        }
+        return e, nil
+}
+
+//sys   port_create() (n int, err error)
+//sys   port_associate(port int, source int, object uintptr, events int, user *byte) (n int, err error)
+//sys   port_dissociate(port int, source int, object uintptr) (n int, err error)
+//sys   port_get(port int, pe *portEvent, timeout *Timespec) (n int, err error)
+//sys   port_getn(port int, pe *portEvent, max uint32, nget *uint32, timeout *Timespec) (n int, err error)
+
+// Close closes the event port.
+func (e *EventPort) Close() error {
+        e.mu.Lock()
+        defer e.mu.Unlock()
+        err := Close(e.port)
+        if err != nil {
+                return err
+        }
+        e.fds = nil
+        e.paths = nil
+        e.cookies = nil
+        return nil
+}
+
+// PathIsWatched checks to see if path is associated with this EventPort.
+func (e *EventPort) PathIsWatched(path string) bool {
+        e.mu.Lock()
+        defer e.mu.Unlock()
+        _, found := e.paths[path]
+        return found
+}
+
+// FdIsWatched checks to see if fd is associated with this EventPort.
+func (e *EventPort) FdIsWatched(fd uintptr) bool {
+        e.mu.Lock()
+        defer e.mu.Unlock()
+        _, found := e.fds[fd]
+        return found
+}
+
+// AssociatePath wraps port_associate(3c) for a filesystem path including
+// creating the necessary file_obj from the provided stat information.
+func (e *EventPort) AssociatePath(path string, stat os.FileInfo, events int, cookie interface{}) error {
+        e.mu.Lock()
+        defer e.mu.Unlock()
+        if _, found := e.paths[path]; found {
+                return fmt.Errorf("%v is already associated with this Event Port", path)
+        }
+        fCookie, err := createFileObjCookie(path, stat, cookie)
+        if err != nil {
+                return err
+        }
+        _, err = port_associate(e.port, PORT_SOURCE_FILE, uintptr(unsafe.Pointer(fCookie.fobj)), events, (*byte)(unsafe.Pointer(fCookie)))
+        if err != nil {
+                return err
+        }
+        e.paths[path] = fCookie
+        e.cookies[fCookie] = struct{}{}
+        return nil
+}
+
+// DissociatePath wraps port_dissociate(3c) for a filesystem path.
+func (e *EventPort) DissociatePath(path string) error {
+        e.mu.Lock()
+        defer e.mu.Unlock()
+        f, ok := e.paths[path]
+        if !ok {
+                return fmt.Errorf("%v is not associated with this Event Port", path)
+        }
+        _, err := port_dissociate(e.port, PORT_SOURCE_FILE, uintptr(unsafe.Pointer(f.fobj)))
+        // If the path is no longer associated with this event port (ENOENT)
+        // we should delete it from our map. We can still return ENOENT to the caller.
+        // But we need to save the cookie
+        if err != nil && err != ENOENT {
+                return err
+        }
+        if err == nil {
+                // dissociate was successful, safe to delete the cookie
+                fCookie := e.paths[path]
+                delete(e.cookies, fCookie)
+        }
+        delete(e.paths, path)
+        return err
+}
+
+// AssociateFd wraps calls to port_associate(3c) on file descriptors.
+func (e *EventPort) AssociateFd(fd uintptr, events int, cookie interface{}) error {
+        e.mu.Lock()
+        defer e.mu.Unlock()
+        if _, found := e.fds[fd]; found {
+                return fmt.Errorf("%v is already associated with this Event Port", fd)
+        }
+        fCookie, err := createFileObjCookie("", nil, cookie)
+        if err != nil {
+                return err
+        }
+        _, err = port_associate(e.port, PORT_SOURCE_FD, fd, events, (*byte)(unsafe.Pointer(fCookie)))
+        if err != nil {
+                return err
+        }
+        e.fds[fd] = fCookie
+        e.cookies[fCookie] = struct{}{}
+        return nil
+}
+
+// DissociateFd wraps calls to port_dissociate(3c) on file descriptors.
+func (e *EventPort) DissociateFd(fd uintptr) error {
+        e.mu.Lock()
+        defer e.mu.Unlock()
+        _, ok := e.fds[fd]
+        if !ok {
+                return fmt.Errorf("%v is not associated with this Event Port", fd)
+        }
+        _, err := port_dissociate(e.port, PORT_SOURCE_FD, fd)
+        if err != nil && err != ENOENT {
+                return err
+        }
+        if err == nil {
+                // dissociate was successful, safe to delete the cookie
+                fCookie := e.fds[fd]
+                delete(e.cookies, fCookie)
+        }
+        delete(e.fds, fd)
+        return err
+}
+
+func createFileObjCookie(name string, stat os.FileInfo, cookie interface{}) (*fileObjCookie, error) {
+        fCookie := new(fileObjCookie)
+        fCookie.cookie = cookie
+        if name != "" && stat != nil {
+                fCookie.fobj = new(fileObj)
+                bs, err := ByteSliceFromString(name)
+                if err != nil {
+                        return nil, err
+                }
+                fCookie.fobj.Name = (*int8)(unsafe.Pointer(&bs[0]))
+                s := stat.Sys().(*syscall.Stat_t)
+                fCookie.fobj.Atim.Sec = s.Atim.Sec
+                fCookie.fobj.Atim.Nsec = s.Atim.Nsec
+                fCookie.fobj.Mtim.Sec = s.Mtim.Sec
+                fCookie.fobj.Mtim.Nsec = s.Mtim.Nsec
+                fCookie.fobj.Ctim.Sec = s.Ctim.Sec
+                fCookie.fobj.Ctim.Nsec = s.Ctim.Nsec
+        }
+        return fCookie, nil
+}
+
+// GetOne wraps port_get(3c) and returns a single PortEvent.
+func (e *EventPort) GetOne(t *Timespec) (*PortEvent, error) {
+        pe := new(portEvent)
+        _, err := port_get(e.port, pe, t)
+        if err != nil {
+                return nil, err
+        }
+        p := new(PortEvent)
+        e.mu.Lock()
+        defer e.mu.Unlock()
+        err = e.peIntToExt(pe, p)
+        if err != nil {
+                return nil, err
+        }
+        return p, nil
+}
+
+// peIntToExt converts a cgo portEvent struct into the friendlier PortEvent
+// NOTE: Always call this function while holding the e.mu mutex
+func (e *EventPort) peIntToExt(peInt *portEvent, peExt *PortEvent) error {
+        if e.cookies == nil {
+                return fmt.Errorf("this EventPort is already closed")
+        }
+        peExt.Events = peInt.Events
+        peExt.Source = peInt.Source
+        fCookie := (*fileObjCookie)(unsafe.Pointer(peInt.User))
+        _, found := e.cookies[fCookie]
+
+        if !found {
+                panic("unexpected event port address; may be due to kernel bug; see https://go.dev/issue/54254")
+        }
+        peExt.Cookie = fCookie.cookie
+        delete(e.cookies, fCookie)
+
+        switch peInt.Source {
+        case PORT_SOURCE_FD:
+                peExt.Fd = uintptr(peInt.Object)
+                // Only remove the fds entry if it exists and this cookie matches
+                if fobj, ok := e.fds[peExt.Fd]; ok {
+                        if fobj == fCookie {
+                                delete(e.fds, peExt.Fd)
+                        }
+                }
+        case PORT_SOURCE_FILE:
+                peExt.fobj = fCookie.fobj
+                peExt.Path = BytePtrToString((*byte)(unsafe.Pointer(peExt.fobj.Name)))
+                // Only remove the paths entry if it exists and this cookie matches
+                if fobj, ok := e.paths[peExt.Path]; ok {
+                        if fobj == fCookie {
+                                delete(e.paths, peExt.Path)
+                        }
+                }
+        }
+        return nil
+}
+
+// Pending wraps port_getn(3c) and returns how many events are pending.
+func (e *EventPort) Pending() (int, error) {
+        var n uint32 = 0
+        _, err := port_getn(e.port, nil, 0, &n, nil)
+        return int(n), err
+}
+
+// Get wraps port_getn(3c) and fills a slice of PortEvent.
+// It will block until either min events have been received
+// or the timeout has been exceeded. It will return how many
+// events were actually received along with any error information.
+func (e *EventPort) Get(s []PortEvent, min int, timeout *Timespec) (int, error) {
+        if min == 0 {
+                return 0, fmt.Errorf("need to request at least one event or use Pending() instead")
+        }
+        if len(s) < min {
+                return 0, fmt.Errorf("len(s) (%d) is less than min events requested (%d)", len(s), min)
+        }
+        got := uint32(min)
+        max := uint32(len(s))
+        var err error
+        ps := make([]portEvent, max)
+        _, err = port_getn(e.port, &ps[0], max, &got, timeout)
+        // got will be trustworthy with ETIME, but not any other error.
+        if err != nil && err != ETIME {
+                return 0, err
+        }
+        e.mu.Lock()
+        defer e.mu.Unlock()
+        valid := 0
+        for i := 0; i < int(got); i++ {
+                err2 := e.peIntToExt(&ps[i], &s[i])
+                if err2 != nil {
+                        if valid == 0 && err == nil {
+                                // If err2 is the only error and there are no valid events
+                                // to return, return it to the caller.
+                                err = err2
+                        }
+                        break
+                }
+                valid = i + 1
+        }
+        return valid, err
+}
+
+//sys   putmsg(fd int, clptr *strbuf, dataptr *strbuf, flags int) (err error)
+
+func Putmsg(fd int, cl []byte, data []byte, flags int) (err error) {
+        var clp, datap *strbuf
+        if len(cl) > 0 {
+                clp = &strbuf{
+                        Len: int32(len(cl)),
+                        Buf: (*int8)(unsafe.Pointer(&cl[0])),
+                }
+        }
+        if len(data) > 0 {
+                datap = &strbuf{
+                        Len: int32(len(data)),
+                        Buf: (*int8)(unsafe.Pointer(&data[0])),
+                }
+        }
+        return putmsg(fd, clp, datap, flags)
+}
+
+//sys   getmsg(fd int, clptr *strbuf, dataptr *strbuf, flags *int) (err error)
+
+func Getmsg(fd int, cl []byte, data []byte) (retCl []byte, retData []byte, flags int, err error) {
+        var clp, datap *strbuf
+        if len(cl) > 0 {
+                clp = &strbuf{
+                        Maxlen: int32(len(cl)),
+                        Buf:    (*int8)(unsafe.Pointer(&cl[0])),
+                }
+        }
+        if len(data) > 0 {
+                datap = &strbuf{
+                        Maxlen: int32(len(data)),
+                        Buf:    (*int8)(unsafe.Pointer(&data[0])),
+                }
+        }
+
+        if err = getmsg(fd, clp, datap, &flags); err != nil {
+                return nil, nil, 0, err
+        }
+
+        if len(cl) > 0 {
+                retCl = cl[:clp.Len]
+        }
+        if len(data) > 0 {
+                retData = data[:datap.Len]
+        }
+        return retCl, retData, flags, nil
+}
+
+func IoctlSetIntRetInt(fd int, req int, arg int) (int, error) {
+        return ioctlRet(fd, req, uintptr(arg))
+}
+
+func IoctlSetString(fd int, req int, val string) error {
+        bs := make([]byte, len(val)+1)
+        copy(bs[:len(bs)-1], val)
+        err := ioctlPtr(fd, req, unsafe.Pointer(&bs[0]))
+        runtime.KeepAlive(&bs[0])
+        return err
+}
+
+// Lifreq Helpers
+
+func (l *Lifreq) SetName(name string) error {
+        if len(name) >= len(l.Name) {
+                return fmt.Errorf("name cannot be more than %d characters", len(l.Name)-1)
+        }
+        for i := range name {
+                l.Name[i] = int8(name[i])
+        }
+        return nil
+}
+
+func (l *Lifreq) SetLifruInt(d int) {
+        *(*int)(unsafe.Pointer(&l.Lifru[0])) = d
+}
+
+func (l *Lifreq) GetLifruInt() int {
+        return *(*int)(unsafe.Pointer(&l.Lifru[0]))
+}
+
+func (l *Lifreq) SetLifruUint(d uint) {
+        *(*uint)(unsafe.Pointer(&l.Lifru[0])) = d
+}
+
+func (l *Lifreq) GetLifruUint() uint {
+        return *(*uint)(unsafe.Pointer(&l.Lifru[0]))
+}
+
+func IoctlLifreq(fd int, req int, l *Lifreq) error {
+        return ioctlPtr(fd, req, unsafe.Pointer(l))
+}
+
+// Strioctl Helpers
+
+func (s *Strioctl) SetInt(i int) {
+        s.Len = int32(unsafe.Sizeof(i))
+        s.Dp = (*int8)(unsafe.Pointer(&i))
+}
+
+func IoctlSetStrioctlRetInt(fd int, req int, s *Strioctl) (int, error) {
+        return ioctlPtrRet(fd, req, unsafe.Pointer(s))
+}