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] = int8(name[i])
	}
	// length is family (uint16), name, NUL.
	sl := _Socklen(2)
	if n > 0 {
		sl += _Socklen(n) + 1
	}

#include <sys/protosw.h>
#include <sys/stropts.h>
#include <sys/mman.h>
#include <sys/poll.h>
#include <sys/select.h>
#include <sys/termio.h>
#include <termios.h>
#include <fcntl.h>

#define AF_LOCAL AF_UNIX
'

includes_Darwin='
#define _DARWIN_C_SOURCE
#define KERNEL 1
#define _DARWIN_USE_64_BIT_INODE
#define __APPLE_USE_RFC_3542
#include <stdint.h>
#include <sys/attr.h>
#include <sys/clonefile.h>

	AF_OSI                        = 0x7
	AF_PUP                        = 0x4
	AF_RIF                        = 0x15
	AF_ROUTE                      = 0x11
	AF_SNA                        = 0xb
	AF_UNIX                       = 0x1
	AF_UNSPEC                     = 0x0
	ARPHRD_802_3                  = 0x6
	ARPHRD_802_5                  = 0x6
	ARPHRD_ETHER                  = 0x1
	ARPHRD_FDDI                   = 0x1