From 52e9404e8516fcb4a9f2c11716482b35c32b0c94 Mon Sep 17 00:00:00 2001
From: nicm <nicm@openbsd.org>
Date: Wed, 22 Apr 2015 15:32:33 +0000
Subject: [PATCH] Make session_has return a flag, returning the first winlink
 found is a recipe for errors.

---
 usr.bin/tmux/resize.c    | 4 ++--
 usr.bin/tmux/server-fn.c | 6 +++---
 usr.bin/tmux/session.c   | 8 ++++----
 usr.bin/tmux/tmux.h      | 4 ++--
 4 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/usr.bin/tmux/resize.c b/usr.bin/tmux/resize.c
index 40f94150282..9327079d7cb 100644
--- a/usr.bin/tmux/resize.c
+++ b/usr.bin/tmux/resize.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: resize.c,v 1.15 2015/04/22 15:30:11 nicm Exp $ */
+/* $OpenBSD: resize.c,v 1.16 2015/04/22 15:32:33 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -104,7 +104,7 @@ recalculate_sizes(void)
 			if (flag)
 				has = s->curw->window == w;
 			else
-				has = session_has(s, w) != NULL;
+				has = session_has(s, w);
 			if (has) {
 				if (s->sx < ssx)
 					ssx = s->sx;
diff --git a/usr.bin/tmux/server-fn.c b/usr.bin/tmux/server-fn.c
index 808e5f35838..b1d72e69ce8 100644
--- a/usr.bin/tmux/server-fn.c
+++ b/usr.bin/tmux/server-fn.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: server-fn.c,v 1.82 2015/04/21 21:24:49 nicm Exp $ */
+/* $OpenBSD: server-fn.c,v 1.83 2015/04/22 15:32:33 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -199,7 +199,7 @@ server_status_window(struct window *w)
 	 */
 
 	RB_FOREACH(s, sessions, &sessions) {
-		if (session_has(s, w) != NULL)
+		if (session_has(s, w))
 			server_status_session(s);
 	}
 }
@@ -268,7 +268,7 @@ server_kill_window(struct window *w)
 		s = next_s;
 		next_s = RB_NEXT(sessions, &sessions, s);
 
-		if (session_has(s, w) == NULL)
+		if (!session_has(s, w))
 			continue;
 		server_unzoom_window(w);
 		while ((wl = winlink_find_by_window(&s->windows, w)) != NULL) {
diff --git a/usr.bin/tmux/session.c b/usr.bin/tmux/session.c
index 94ff3a04a92..09da65c3ed4 100644
--- a/usr.bin/tmux/session.c
+++ b/usr.bin/tmux/session.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: session.c,v 1.46 2014/10/22 23:18:53 nicm Exp $ */
+/* $OpenBSD: session.c,v 1.47 2015/04/22 15:32:33 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -309,16 +309,16 @@ session_detach(struct session *s, struct winlink *wl)
 }
 
 /* Return if session has window. */
-struct winlink *
+int
 session_has(struct session *s, struct window *w)
 {
 	struct winlink	*wl;
 
 	RB_FOREACH(wl, winlinks, &s->windows) {
 		if (wl->window == w)
-			return (wl);
+			return (1);
 	}
-	return (NULL);
+	return (0);
 }
 
 struct winlink *
diff --git a/usr.bin/tmux/tmux.h b/usr.bin/tmux/tmux.h
index 2d217c7b3b0..9d86f7d8de2 100644
--- a/usr.bin/tmux/tmux.h
+++ b/usr.bin/tmux/tmux.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: tmux.h,v 1.496 2015/04/22 15:30:11 nicm Exp $ */
+/* $OpenBSD: tmux.h,v 1.497 2015/04/22 15:32:33 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -2321,7 +2321,7 @@ struct winlink	*session_new(struct session *, const char *, int, char **,
 struct winlink	*session_attach(struct session *, struct window *, int,
 		     char **);
 int		 session_detach(struct session *, struct winlink *);
-struct winlink	*session_has(struct session *, struct window *);
+int		 session_has(struct session *, struct window *);
 int		 session_next(struct session *, int);
 int		 session_previous(struct session *, int);
 int		 session_select(struct session *, int);
-- 
2.20.1