1// Copyright 2019 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5// +build darwin,go1.12,!go1.13 6 7package unix 8 9import ( 10 "unsafe" 11) 12 13func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { 14 // To implement this using libSystem we'd need syscall_syscallPtr for 15 // fdopendir. However, syscallPtr was only added in Go 1.13, so we fall 16 // back to raw syscalls for this func on Go 1.12. 17 var p unsafe.Pointer 18 if len(buf) > 0 { 19 p = unsafe.Pointer(&buf[0]) 20 } else { 21 p = unsafe.Pointer(&_zero) 22 } 23 r0, _, e1 := Syscall6(SYS_GETDIRENTRIES64, uintptr(fd), uintptr(p), uintptr(len(buf)), uintptr(unsafe.Pointer(basep)), 0, 0) 24 n = int(r0) 25 if e1 != 0 { 26 return n, errnoErr(e1) 27 } 28 return n, nil 29} 30