Rename creds.UserID() to creds.UID()

AUTHORS

@@ -1 +1,2 @@
-Tailscale Inc
+Original: Tailscale Inc
+Minimized version w/FreeBSD PID support: Randall Winkhart

peercred.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2021 AUTHORS All rights reserved.
+// Copyright (c) 2021-2024 AUTHORS All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
@@ -16,14 +16,14 @@ type Creds struct {
 	uid string
 }
 
+// PID returns the process ID associated with the other side of the connection.
 func (c *Creds) PID() (pid int) {
 	return c.pid
 }
 
-// UserID returns the userid (or Windows SID) that owns the other side
-// of the connection.
+// UID returns the userid (or Windows SID) that owns the other side of the connection.
 // The returned string is suitable to passing to os/user.LookupId.
-func (c *Creds) UserID() (uid string) {
+func (c *Creds) UID() (uid string) {
 	return c.uid
 }
 

peercred_unix_test.go

@@ -50,7 +50,7 @@ func TestUnixSock(t *testing.T) {
 		t.Fatalf("Get: %v", err)
 	}
 
-	uid := creds.UserID()
+	uid := creds.UID()
 	if uid == "" {
 		t.Errorf("no UID")
 	}