cmsg.Len = uint64(length)
}

//sys	syncFileRange2(fd int, flags int, off int64, n int64) (err error) = SYS_SYNC_FILE_RANGE2

func SyncFileRange(fd int, off int64, n int64, flags int) error {
	// The sync_file_range and sync_file_range2 syscalls differ only in the
	// order of their arguments.
	return syncFileRange2(fd, flags, off, n)

func (sect *peSection) checkOffset(off int64) {
	if off != int64(sect.pointerToRawData) {
		Errorf(nil, "%s.PointerToRawData = %#x, want %#x", sect.name, uint64(int64(sect.pointerToRawData)), uint64(off))
		errorexit()
	}
}

// checkSegment verifies COFF section sect matches address
// and file offset provided in segment seg.
func (sect *peSection) checkSegment(seg *sym.Segment) {

Shinsuke Sugaya <******@****.***> 1576358545 +0900

Shinsuke Sugaya <******@****.***> 1576358545 +0900

Shinsuke Sugaya <******@****.***> 1576358545 +0900

	if _, err := d.r.Seek(funcOffsetLocation, io.SeekStart); err != nil {
		return err
	}
	foff := d.r.ReadUint32()

	// Check assumptions
	if foff < uint32(funcOffsetLocation) || foff > d.hdr.Length {
		return fmt.Errorf("malformed func offset %d", foff)
	}

	// Seek to the correct location to read the function.
	floc := int64(foff)
	if _, err := d.r.Seek(floc, io.SeekStart); err != nil {
		return err
	}

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

package pe

import (
	"encoding/binary"
	"fmt"
	"internal/saferio"
	"io"
	"strconv"
)

// SectionHeader32 represents real PE COFF section header.
type SectionHeader32 struct {
	Name                 [8]uint8
	VirtualSize          uint32
	VirtualAddress       uint32
	SizeOfRawData        uint32
	PointerToRawData     uint32

//sys	Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
//sys	Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
//sys	sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
//sys	setfsgid(gid int) (prev int, err error)
//sys	setfsuid(uid int) (prev int, err error)
//sys	Shutdown(fd int, how int) (err error)

package unix

import (
	"syscall"
	"unsafe"
)

func CopyFileRange(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error) {
	r1, _, errno := syscall.Syscall6(copyFileRangeTrap,
		uintptr(rfd),
		uintptr(unsafe.Pointer(roff)),
		uintptr(wfd),
		uintptr(unsafe.Pointer(woff)),
		uintptr(len),
		uintptr(flags),
	)
	n = int(r1)
	if errno != 0 {
		err = errno
	}
	return

The MIT License (MIT)

Copyright (c) 2014 Brian Goff

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is