dirent_openbsd.go

Documentation: os

		 1  // Copyright 2020 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  package os
		 6  
		 7  import (
		 8  	"syscall"
		 9  	"unsafe"
		10  )
		11  
		12  func direntIno(buf []byte) (uint64, bool) {
		13  	return readInt(buf, unsafe.Offsetof(syscall.Dirent{}.Fileno), unsafe.Sizeof(syscall.Dirent{}.Fileno))
		14  }
		15  
		16  func direntReclen(buf []byte) (uint64, bool) {
		17  	return readInt(buf, unsafe.Offsetof(syscall.Dirent{}.Reclen), unsafe.Sizeof(syscall.Dirent{}.Reclen))
		18  }
		19  
		20  func direntNamlen(buf []byte) (uint64, bool) {
		21  	return readInt(buf, unsafe.Offsetof(syscall.Dirent{}.Namlen), unsafe.Sizeof(syscall.Dirent{}.Namlen))
		22  }
		23  
		24  func direntType(buf []byte) FileMode {
		25  	off := unsafe.Offsetof(syscall.Dirent{}.Type)
		26  	if off >= uintptr(len(buf)) {
		27  		return ^FileMode(0) // unknown
		28  	}
		29  	typ := buf[off]
		30  	switch typ {
		31  	case syscall.DT_BLK:
		32  		return ModeDevice
		33  	case syscall.DT_CHR:
		34  		return ModeDevice | ModeCharDevice
		35  	case syscall.DT_DIR:
		36  		return ModeDir
		37  	case syscall.DT_FIFO:
		38  		return ModeNamedPipe
		39  	case syscall.DT_LNK:
		40  		return ModeSymlink
		41  	case syscall.DT_REG:
		42  		return 0
		43  	case syscall.DT_SOCK:
		44  		return ModeSocket
		45  	}
		46  	return ^FileMode(0) // unknown
		47  }
		48
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