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Do not create a buffer from an OSC 52 response if we have not sent a

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query.
This commit is contained in:
nicm
2022-02-15 13:03:02 +00:00
parent 040164555a
commit f85208602d
4 changed files with 35 additions and 3 deletions
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27
tty.c
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@ -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);
}