package os

import (
	"syscall"
	"unsafe"
)

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

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

func direntNamlen(buf []byte) (uint64, bool) {

	return align, map[int]*wireFormat{
		syscall.RTM_ADD:        rtm,
		syscall.RTM_DELETE:     rtm,
		syscall.RTM_CHANGE:     rtm,
		syscall.RTM_GET:        rtm,
		syscall.RTM_LOSING:     rtm,
		syscall.RTM_REDIRECT:   rtm,
		syscall.RTM_MISS:       rtm,
		syscall.RTM_LOCK:       rtm,
		syscall.RTM_RESOLVE:    rtm,
		syscall.RTM_NEWADDR:    ifam,
		syscall.RTM_DELADDR:    ifam,
		syscall.RTM_IFINFO:     ifm,

package cmd

import (
	"errors"
	"os"
	"runtime"
	"syscall"
)

// No space left on device error
func isSysErrNoSpace(err error) bool {
	return errors.Is(err, syscall.ENOSPC)
}

// Invalid argument, unsupported flags such as O_DIRECT
func isSysErrInvalidArg(err error) bool {
	return errors.Is(err, syscall.EINVAL)
}

// Input/output error
func isSysErrIO(err error) bool {

		}
		defer syscall.CloseHandle(h)
		return statHandle(name, h)
	}
	return fi, err
}

func statHandle(name string, h syscall.Handle) (FileInfo, error) {
	ft, err := syscall.GetFileType(h)
	if err != nil {
		return nil, &PathError{Op: "GetFileType", Path: name, Err: err}
	}
	switch ft {
	case syscall.FILE_TYPE_PIPE, syscall.FILE_TYPE_CHAR:

	switch signal {
	case
		syscall.SIGILL,  // illegal instruction
		syscall.SIGTRAP, // breakpoint
		syscall.SIGABRT, // abort() called
		syscall.SIGBUS,  // invalid memory access (e.g., misaligned address)
		syscall.SIGFPE,  // math error, e.g., integer divide by zero
		syscall.SIGSEGV, // invalid memory access (e.g., write to read-only)
		syscall.SIGPIPE: // sent data to closed pipe or socket
		return true

	}
	defer func() {
		if err := syscall.Close(gotFDs[0]); err != nil {
			t.Fatalf("fail to close gotFDs: %v", err)
		}
	}()

	flags, err := unix.Fcntl(gotFDs[0], syscall.F_GETFD, 0)
	if err != nil {
		t.Fatalf("Can't get flags of fd:%#v, with err:%v", gotFDs[0], err)
	}
	if flags&syscall.FD_CLOEXEC == 0 {
		t.Fatalf("got flags %#x, want %#x (FD_CLOEXEC) set", flags, syscall.FD_CLOEXEC)
	}

//go:build unix || wasip1

package poll

import "syscall"

// Do the interface allocations only once for common
// Errno values.
var (
	errEAGAIN error = syscall.EAGAIN
	errEINVAL error = syscall.EINVAL
	errENOENT error = syscall.ENOENT
)

// errnoErr returns common boxed Errno values, to prevent
// allocations at runtime.
func errnoErr(e syscall.Errno) error {
	switch e {
	case 0:
		return nil

// license that can be found in the LICENSE file.

package poll

import "syscall"

// CloseFunc is used to hook the close call.
var CloseFunc func(syscall.Handle) error = syscall.Closesocket

// AcceptFunc is used to hook the accept call.
var AcceptFunc func(syscall.Handle, syscall.Handle, *byte, uint32, uint32, uint32, *uint32, *syscall.Overlapped) error = syscall.AcceptEx

// ConnectExFunc is used to hook the ConnectEx call.

			t.Fatalf("writefile: %v", err)
		}
	}

	names := make([]string, 0, 10)

	fd, err := syscall.Open(d, syscall.O_RDONLY, 0)
	if err != nil {
		t.Fatalf("syscall.open: %v", err)
	}
	defer syscall.Close(fd)

	buf := bytes.Repeat([]byte{0xCD}, direntBufSize)
	for {
		n, err := syscall.ReadDirent(fd, buf)
		if err == syscall.EINVAL {
			// On linux, 'man getdents64' says that EINVAL indicates “result buffer is too small”.

// license that can be found in the LICENSE file.

//go:build unix || js || wasip1 || windows

package net

import (
	"context"
	"syscall"
)

func sockaddrToIP(sa syscall.Sockaddr) Addr {
	switch sa := sa.(type) {
	case *syscall.SockaddrInet4:
		return &IPAddr{IP: sa.Addr[0:]}
	case *syscall.SockaddrInet6:
		return &IPAddr{IP: sa.Addr[0:], Zone: zoneCache.name(int(sa.ZoneId))}
	}
	return nil
}