From 515dfea4b79a09513d1ede5dbb8a89c3e18b8393 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Thu, 22 Oct 2015 10:48:30 +0000
Subject: [PATCH 1/4] This should not be changed.

---
 server.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server.c b/server.c
index 2aed3dbb..ff38a353 100644
--- a/server.c
+++ b/server.c
@@ -281,7 +281,7 @@ server_send_exit(void)
 		if (c->flags & (CLIENT_BAD|CLIENT_SUSPENDED))
 			server_client_lost(c);
 		else
-			server_write_client(c, MSG_EXIT, NULL, 0);
+			server_write_client(c, MSG_SHUTDOWN, NULL, 0);
 		c->session = NULL;
 	}
 

From c2c2d44c72a6e693c22bb48d54b0b337a568b70b Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Thu, 22 Oct 2015 11:00:51 +0000
Subject: [PATCH 2/4] Log identify messages.

---
 server-client.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/server-client.c b/server-client.c
index 41ecc141..435e8b1a 100644
--- a/server-client.c
+++ b/server-client.c
@@ -1155,38 +1155,45 @@ server_client_msg_identify(struct client *c, struct imsg *imsg)
 			fatalx("bad MSG_IDENTIFY_FLAGS size");
 		memcpy(&flags, data, sizeof flags);
 		c->flags |= flags;
+		log_debug("client %p IDENTIFY_FLAGS %#x", c, flags);
 		break;
 	case MSG_IDENTIFY_TERM:
 		if (datalen == 0 || data[datalen - 1] != '\0')
 			fatalx("bad MSG_IDENTIFY_TERM string");
 		c->term = xstrdup(data);
+		log_debug("client %p IDENTIFY_TERM %s", c, data);
 		break;
 	case MSG_IDENTIFY_TTYNAME:
 		if (datalen == 0 || data[datalen - 1] != '\0')
 			fatalx("bad MSG_IDENTIFY_TTYNAME string");
 		c->ttyname = xstrdup(data);
+		log_debug("client %p IDENTIFY_TTYNAME %s", c, data);
 		break;
 	case MSG_IDENTIFY_CWD:
 		if (datalen == 0 || data[datalen - 1] != '\0')
 			fatalx("bad MSG_IDENTIFY_CWD string");
 		if ((c->cwd = open(data, O_RDONLY)) == -1)
 			c->cwd = open("/", O_RDONLY);
+		log_debug("client %p IDENTIFY_CWD %s", c, data);
 		break;
 	case MSG_IDENTIFY_STDIN:
 		if (datalen != 0)
 			fatalx("bad MSG_IDENTIFY_STDIN size");
 		c->fd = imsg->fd;
+		log_debug("client %p IDENTIFY_STDIN %d", c, imsg->fd);
 		break;
 	case MSG_IDENTIFY_ENVIRON:
 		if (datalen == 0 || data[datalen - 1] != '\0')
 			fatalx("bad MSG_IDENTIFY_ENVIRON string");
 		if (strchr(data, '=') != NULL)
 			environ_put(&c->environ, data);
+		log_debug("client %p IDENTIFY_ENVIRON %s", c, data);
 		break;
 	case MSG_IDENTIFY_CLIENTPID:
 		if (datalen != sizeof c->pid)
 			fatalx("bad MSG_IDENTIFY_CLIENTPID size");
 		memcpy(&c->pid, data, sizeof c->pid);
+		log_debug("client %p IDENTIFY_CLIENTPID %ld", c, (long)c->pid);
 		break;
 	default:
 		break;

From a05c27a7e1c4d43709817d6746a510f16c960b4b Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Thu, 22 Oct 2015 11:19:31 +0000
Subject: [PATCH 3/4] Unzoom before -LRUD, reported by Andy Weidenbaum.

---
 cmd-select-pane.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/cmd-select-pane.c b/cmd-select-pane.c
index e76587cc..7986e98c 100644
--- a/cmd-select-pane.c
+++ b/cmd-select-pane.c
@@ -120,14 +120,19 @@ cmd_select_pane_exec(struct cmd *self, struct cmd_q *cmdq)
 		return (CMD_RETURN_NORMAL);
 	}
 
-	if (args_has(self->args, 'L'))
+	if (args_has(self->args, 'L')) {
+		server_unzoom_window(wp->window);
 		wp = window_pane_find_left(wp);
-	else if (args_has(self->args, 'R'))
+	} else if (args_has(self->args, 'R')) {
+		server_unzoom_window(wp->window);
 		wp = window_pane_find_right(wp);
-	else if (args_has(self->args, 'U'))
+	} else if (args_has(self->args, 'U')) {
+		server_unzoom_window(wp->window);
 		wp = window_pane_find_up(wp);
-	else if (args_has(self->args, 'D'))
+	} else if (args_has(self->args, 'D')) {
+		server_unzoom_window(wp->window);
 		wp = window_pane_find_down(wp);
+	}
 	if (wp == NULL)
 		return (CMD_RETURN_NORMAL);
 

From 3ebcf25149d75977ea97e9d4f786e0508d1a0d5e Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Thu, 22 Oct 2015 11:23:00 +0000
Subject: [PATCH 4/4] If the pane is still on all_window_panes but not actually
 connected to window or session (which can happen if it is killed during a
 command sequence and something else has a reference), fall back to the best
 effort. Fixes "tmux killw\; detach" for Rudis Muiznieks.

---
 cmd-find.c | 33 ++++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 11 deletions(-)

diff --git a/cmd-find.c b/cmd-find.c
index ec883cbd..376d9041 100644
--- a/cmd-find.c
+++ b/cmd-find.c
@@ -255,24 +255,35 @@ cmd_find_current_session_with_client(struct cmd_find_state *fs)
 		wp = NULL;
 
 	/* Not running in a pane. We know nothing. Find the best session. */
-	if (wp == NULL) {
-		fs->s = cmd_find_best_session(NULL, 0, fs->flags);
-		if (fs->s == NULL)
-			return (-1);
-		fs->wl = fs->s->curw;
-		fs->idx = fs->wl->idx;
-		fs->w = fs->wl->window;
-		fs->wp = fs->w->active;
-		return (0);
-	}
+	if (wp == NULL)
+		goto unknown_pane;
 
 	/* We now know the window and pane. */
 	fs->w = wp->window;
 	fs->wp = wp;
 
 	/* Find the best session and winlink. */
-	if (cmd_find_best_session_with_window(fs) != 0)
+	if (cmd_find_best_session_with_window(fs) != 0) {
+		if (wp != NULL) {
+			/*
+			 * The window may have been destroyed but the pane
+			 * still on all_window_panes due to something else
+			 * holding a reference.
+			 */
+			goto unknown_pane;
+		}
 		return (-1);
+	}
+	return (0);
+
+unknown_pane:
+	fs->s = cmd_find_best_session(NULL, 0, fs->flags);
+	if (fs->s == NULL)
+		return (-1);
+	fs->wl = fs->s->curw;
+	fs->idx = fs->wl->idx;
+	fs->w = fs->wl->window;
+	fs->wp = fs->w->active;
 	return (0);
 }