#include <sys/select.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_clone.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <termios.h>
#include <netinet/ip.h>

}

// IoctlGetIfreqMTU performs the SIOCGIFMTU ioctl operation on fd to get the MTU
// of the network device specified by ifname.
func IoctlGetIfreqMTU(fd int, ifname string) (*IfreqMTU, error) {
	var ifreq IfreqMTU
	copy(ifreq.Name[:], ifname)
	err := ioctlPtr(fd, SIOCGIFMTU, unsafe.Pointer(&ifreq))
	return &ifreq, err
}

// IoctlSetIfreqMTU performs the SIOCSIFMTU ioctl operation on fd to set the MTU

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 (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,

func ioctl(fd int, req int, arg uintptr) (err error) {
	r0, er := C.ioctl(C.int(fd), C.int(req), C.uintptr_t(arg))
	if r0 == -1 && er != nil {
		err = er
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func ioctlPtr(fd int, req int, arg unsafe.Pointer) (err error) {
	r0, er := C.ioctl(C.int(fd), C.int(req), C.uintptr_t(uintptr(arg)))

func callioctl(fd int, req int, arg uintptr) (r1 uintptr, e1 Errno) {
	r1 = uintptr(C.ioctl(C.int(fd), C.int(req), C.uintptr_t(arg)))
	e1 = syscall.GetErrno()
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func callioctl_ptr(fd int, req int, arg unsafe.Pointer) (r1 uintptr, e1 Errno) {
	r1 = uintptr(C.ioctl(C.int(fd), C.int(req), C.uintptr_t(uintptr(arg))))
	e1 = syscall.GetErrno()
	return
}

	TCSAFLUSH                       = 2
	TCSETSF                         = 2 // equivalent to TCSAFLUSH for tcsetattr
	TCGETS                          = 3 // not defined in ioctl.h -- zos golang only
	TCIFLUSH                        = 0
	TCOFLUSH                        = 1
	TCIOFLUSH                       = 2
	TCOOFF                          = 0
	TCOON                           = 1

	return
}

//sys	Getcwd(buf []byte) (n int, err error) = SYS___GETCWD

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

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

//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL

		bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
	}
	r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags))
	n = int(r0)
	if e1 != 0 {
		err = e1
	}
	return
}

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

//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL

	getresuid(&r, &e, &s)
	return int(r), int(e), int(s)
}

func Getresgid() (rgid, egid, sgid int) {
	var r, e, s _C_int
	getresgid(&r, &e, &s)
	return int(r), int(e), int(s)
}

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

//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL