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authorNicholas Marriott <nicm@cvs.openbsd.org>2022-02-15 13:03:03 +0000
committerNicholas Marriott <nicm@cvs.openbsd.org>2022-02-15 13:03:03 +0000
commit8e48cd7173be4ff06b123b9cf7e583cf50c599d2 (patch)
treed2cd3503b20cc132ae1adf1675180cf1bca0a9a2 /usr.bin/tmux/tty.c
parent196e33760a79420def8ae762987580588741bf1d (diff)
Do not create a buffer from an OSC 52 response if we have not sent a
query.
Diffstat (limited to 'usr.bin/tmux/tty.c')
-rw-r--r--usr.bin/tmux/tty.c29
1 files changed, 27 insertions, 2 deletions
diff --git a/usr.bin/tmux/tty.c b/usr.bin/tmux/tty.c
index 63274052d00..253fc10e562 100644
--- a/usr.bin/tmux/tty.c
+++ b/usr.bin/tmux/tty.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tty.c,v 1.415 2021/12/31 11:35:49 nicm Exp $ */
+/* $OpenBSD: tty.c,v 1.416 2022/02/15 13:03:02 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -83,6 +83,8 @@ static void tty_check_overlay_range(struct tty *, u_int, u_int, u_int,
#define TTY_BLOCK_START(tty) (1 + ((tty)->sx * (tty)->sy) * 8)
#define TTY_BLOCK_STOP(tty) (1 + ((tty)->sx * (tty)->sy) / 8)
+#define TTY_QUERY_TIMEOUT 5
+
void
tty_create_log(void)
{
@@ -307,7 +309,7 @@ tty_start_tty(struct tty *tty)
{
struct client *c = tty->client;
struct termios tio;
- struct timeval tv = { .tv_sec = 3 };
+ struct timeval tv = { .tv_sec = TTY_QUERY_TIMEOUT };
setblocking(c->fd, 0);
event_add(&tty->event_in, NULL);
@@ -2917,3 +2919,26 @@ tty_default_attributes(struct tty *tty, const struct grid_cell *defaults,
gc.bg = bg;
tty_attributes(tty, &gc, defaults, palette);
}
+
+static void
+tty_query_timer_callback(__unused int fd, __unused short events, void *data)
+{
+ struct tty *tty = data;
+
+ tty->flags &= ~TTY_OSC52QUERY;
+}
+
+void
+tty_send_osc52_query(struct tty *tty)
+{
+ struct timeval tv = { .tv_sec = TTY_QUERY_TIMEOUT };
+
+ if ((~tty->flags & TTY_STARTED) || (tty->flags & TTY_OSC52QUERY))
+ return;
+ tty_putcode_ptr2(tty, TTYC_MS, "", "?");
+ tty->flags |= TTY_OSC52QUERY;
+
+ evtimer_set(&tty->query_timer, tty_query_timer_callback, tty);
+ evtimer_add(&tty->query_timer, &tv);
+}
+