1 files changed, 16 insertions, 0 deletions
diff --git a/sysv/ftok.go b/sysv/ftok.go
new file mode 100644
index 0000000..94d73cf
--- /dev/null
+++ b/sysv/ftok.go
@@ -0,0 +1,16 @@
+package sysv
+
+import (
+	"golang.org/x/sys/unix"
+)
+
+func Ftok(p string, id uint) (uint, error) {
+	fss := &unix.Stat_t{}
+	if err := unix.Stat(p, fss); err != nil {
+		return 0, err
+	}
+
+	return uint((uint(fss.Ino) & 0xffff) |
+		uint((fss.Dev&0xff)<<16) |
+		((id & 0xff) << 24)), nil
+}