syscall_darwin.1_12.go 811 B

1234567891011121314151617181920212223242526272829
  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. // +build darwin,go1.12,!go1.13
  5. package unix
  6. import (
  7. "unsafe"
  8. )
  9. func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
  10. // To implement this using libSystem we'd need syscall_syscallPtr for
  11. // fdopendir. However, syscallPtr was only added in Go 1.13, so we fall
  12. // back to raw syscalls for this func on Go 1.12.
  13. var p unsafe.Pointer
  14. if len(buf) > 0 {
  15. p = unsafe.Pointer(&buf[0])
  16. } else {
  17. p = unsafe.Pointer(&_zero)
  18. }
  19. r0, _, e1 := Syscall6(SYS_GETDIRENTRIES64, uintptr(fd), uintptr(p), uintptr(len(buf)), uintptr(unsafe.Pointer(basep)), 0, 0)
  20. n = int(r0)
  21. if e1 != 0 {
  22. return n, errnoErr(e1)
  23. }
  24. return n, nil
  25. }