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Dosya Düzenle: at_libc.go

// Copyright 2018 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.

//go:build aix || solaris

package unix

import (
	"syscall"
	"unsafe"
)

//go:linkname procFstatat libc_fstatat
//go:linkname procOpenat libc_openat
//go:linkname procUnlinkat libc_unlinkat

var (
	procFstatat,
	procOpenat,
	procUnlinkat uintptr
)

func Unlinkat(dirfd int, path string, flags int) error {
	p, err := syscall.BytePtrFromString(path)
	if err != nil {
		return err
	}

_, _, errno := syscall6(uintptr(unsafe.Pointer(&procUnlinkat)), 3, uintptr(dirfd), uintptr(unsafe.Pointer(p)), uintptr(flags), 0, 0, 0)
	if errno != 0 {
		return errno
	}

return nil
}

func Openat(dirfd int, path string, flags int, perm uint32) (int, error) {
	p, err := syscall.BytePtrFromString(path)
	if err != nil {
		return 0, err
	}

fd, _, errno := syscall6(uintptr(unsafe.Pointer(&procOpenat)), 4, uintptr(dirfd), uintptr(unsafe.Pointer(p)), uintptr(flags), uintptr(perm), 0, 0)
	if errno != 0 {
		return 0, errno
	}

return int(fd), nil
}

func Fstatat(dirfd int, path string, stat *syscall.Stat_t, flags int) error {
	p, err := syscall.BytePtrFromString(path)
	if err != nil {
		return err
	}

_, _, errno := syscall6(uintptr(unsafe.Pointer(&procFstatat)), 4, uintptr(dirfd), uintptr(unsafe.Pointer(p)), uintptr(unsafe.Pointer(stat)), uintptr(flags), 0, 0)
	if errno != 0 {
		return errno
	}

return nil
}

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