syscall_darwin.1_12.go 885 B

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  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. //go:build darwin && go1.12 && !go1.13
  5. // +build darwin,go1.12,!go1.13
  6. package unix
  7. import (
  8. "unsafe"
  9. )
  10. const _SYS_GETDIRENTRIES64 = 344
  11. func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
  12. // To implement this using libSystem we'd need syscall_syscallPtr for
  13. // fdopendir. However, syscallPtr was only added in Go 1.13, so we fall
  14. // back to raw syscalls for this func on Go 1.12.
  15. var p unsafe.Pointer
  16. if len(buf) > 0 {
  17. p = unsafe.Pointer(&buf[0])
  18. } else {
  19. p = unsafe.Pointer(&_zero)
  20. }
  21. r0, _, e1 := Syscall6(_SYS_GETDIRENTRIES64, uintptr(fd), uintptr(p), uintptr(len(buf)), uintptr(unsafe.Pointer(basep)), 0, 0)
  22. n = int(r0)
  23. if e1 != 0 {
  24. return n, errnoErr(e1)
  25. }
  26. return n, nil
  27. }