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// +build darwin dragonfly freebsd netbsd openbsd
package godirwalk
import (
"reflect"
"syscall"
"unsafe"
)
func nameFromDirent(de *syscall.Dirent) []byte {
// Because this GOOS' syscall.Dirent provides a Namlen field that says how
// long the name is, this function does not need to search for the NULL
// byte.
ml := int(de.Namlen)
// Convert syscall.Dirent.Name, which is array of int8, to []byte, by
// overwriting Cap, Len, and Data slice header fields to values from
// syscall.Dirent fields. Setting the Cap, Len, and Data field values for
// the slice header modifies what the slice header points to, and in this
// case, the name buffer.
var name []byte
sh := (*reflect.SliceHeader)(unsafe.Pointer(&name))
sh.Cap = ml
sh.Len = ml
sh.Data = uintptr(unsafe.Pointer(&de.Name[0]))
return name
}
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