1//go:build dragonfly
 2
 3package dirent
 4
 5import (
 6	"os"
 7	"syscall"
 8	"unsafe"
 9)
10
11func direntIno(buf []byte) (uint64, bool) {
12	return readInt(buf, unsafe.Offsetof(syscall.Dirent{}.Fileno), unsafe.Sizeof(syscall.Dirent{}.Fileno))
13}
14
15func direntReclen(buf []byte) (uint64, bool) {
16	namlen, ok := direntNamlen(buf)
17	if !ok {
18		return 0, false
19	}
20	return (16 + namlen + 1 + 7) &^ 7, true
21}
22
23func direntNamlen(buf []byte) (uint64, bool) {
24	return readInt(buf, unsafe.Offsetof(syscall.Dirent{}.Namlen), unsafe.Sizeof(syscall.Dirent{}.Namlen))
25}
26
27func direntType(buf []byte) os.FileMode {
28	off := unsafe.Offsetof(syscall.Dirent{}.Type)
29	if off >= uintptr(len(buf)) {
30		return ^os.FileMode(0) // unknown
31	}
32	typ := buf[off]
33	switch typ {
34	case syscall.DT_BLK:
35		return os.ModeDevice
36	case syscall.DT_CHR:
37		return os.ModeDevice | os.ModeCharDevice
38	case syscall.DT_DBF:
39		// DT_DBF is "database record file".
40		// fillFileStatFromSys treats as regular file.
41		return 0
42	case syscall.DT_DIR:
43		return os.ModeDir
44	case syscall.DT_FIFO:
45		return os.ModeNamedPipe
46	case syscall.DT_LNK:
47		return os.ModeSymlink
48	case syscall.DT_REG:
49		return 0
50	case syscall.DT_SOCK:
51		return os.ModeSocket
52	}
53	return ^os.FileMode(0) // unknown
54}