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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// `go mod` ignores file names for the purpose of resolving
// dependencies, and fdio doesn't build on not-Fuchsia.
//go:build fuchsia
package os
import (
"syscall"
"unsafe"
)
func direntIno(buf []byte) (uint64, bool) {
return readInt(buf, unsafe.Offsetof(syscall.Dirent{}.Ino), unsafe.Sizeof(syscall.Dirent{}.Ino))
}
func direntReclen(buf []byte) (uint64, bool) {
if namelen, ok := direntNamlen(buf); ok {
return namelen + uint64(unsafe.Offsetof(syscall.Dirent{}.Name)), true
} else {
return 0, false
}
}
func direntNamlen(buf []byte) (uint64, bool) {
return readInt(buf, unsafe.Offsetof(syscall.Dirent{}.Size), unsafe.Sizeof(syscall.Dirent{}.Size))
}
func direntType(buf []byte) FileMode {
off := unsafe.Offsetof(syscall.Dirent{}.Type)
if off >= uintptr(len(buf)) {
return ^FileMode(0) // unknown
}
typ := buf[off]
switch typ {
case syscall.DT_BLK:
return ModeDevice
case syscall.DT_CHR:
return ModeDevice | ModeCharDevice
case syscall.DT_DIR:
return ModeDir
case syscall.DT_FIFO:
return ModeNamedPipe
case syscall.DT_LNK:
return ModeSymlink
case syscall.DT_REG:
return 0
case syscall.DT_SOCK:
return ModeSocket
}
return ^FileMode(0) // unknown
}