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Use DECRQM to detect mode 2026, from Michael Grant.

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This commit is contained in:
nicm
2026-08-18 09:01:20 +00:00
committed by tmux update bot
parent b170c19274
commit e94fcd96f9
3 changed files with 67 additions and 4 deletions
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5
tmux.h
View File

@@ -1,4 +1,4 @@
/* $OpenBSD: tmux.h,v 1.1426 2026/08/18 07:43:44 nicm Exp $ */
/* $OpenBSD: tmux.h,v 1.1427 2026/08/18 09:01:20 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -1774,8 +1774,9 @@ struct tty {
#define TTY_WAITFG 0x2000
#define TTY_WAITBG 0x4000
#define TTY_BRACKETPASTE 0x8000
#define TTY_HAVESYNC 0x10000
#define TTY_ALL_REQUEST_FLAGS \
(TTY_HAVEDA|TTY_HAVEDA2|TTY_HAVEXDA)
(TTY_HAVEDA|TTY_HAVEDA2|TTY_HAVEXDA|TTY_HAVESYNC)
int flags;
struct tty_term *term;

62
tty-keys.c
View File

@@ -1,4 +1,4 @@
/* $OpenBSD: tty-keys.c,v 1.213 2026/08/17 14:47:41 nicm Exp $ */
/* $OpenBSD: tty-keys.c,v 1.214 2026/08/18 09:01:20 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -59,6 +59,7 @@ static int tty_keys_device_attributes2(struct tty *, const char *, size_t,
size_t *);
static int tty_keys_extended_device_attributes(struct tty *, const char *,
size_t, size_t *);
static int tty_keys_sync(struct tty *, const char *, size_t, size_t *);
static int tty_keys_palette(struct tty *, const char *, size_t, size_t *);
/* A key tree entry. */
@@ -771,6 +772,17 @@ tty_keys_next(struct tty *tty)
goto partial_key;
}
/* Is this a synchronized update mode response? */
switch (tty_keys_sync(tty, buf, len, &size)) {
case 0: /* yes */
key = KEYC_UNKNOWN;
goto complete_key;
case -1: /* no, or not valid */
break;
case 1: /* partial */
goto partial_key;
}
/* Is this a primary device attributes response? */
switch (tty_keys_device_attributes(tty, buf, len, &size)) {
case 0: /* yes */
@@ -1521,6 +1533,54 @@ tty_keys_device_attributes(struct tty *tty, const char *buf, size_t len,
return (0);
}
/*
* Handle a synchronized update mode response. Returns 0 for success, -1 for
* failure, 1 for partial.
*/
static int
tty_keys_sync(struct tty *tty, const char *buf, size_t len, size_t *size)
{
struct client *c = tty->client;
static const char prefix[] = "\033[?2026;";
size_t i;
int status;
*size = 0;
if (tty->flags & TTY_HAVESYNC)
return (-1);
/* The response is always \033[?2026;Ps$y. */
for (i = 0; i < (sizeof prefix) - 1; i++) {
if (i == len)
return (1);
if (buf[i] != prefix[i])
return (-1);
}
if (i == len)
return (1);
if (buf[i] < '0' || buf[i] > '4')
return (-1);
status = buf[i++] - '0';
if (i == len)
return (1);
if (buf[i++] != '$')
return (-1);
if (i == len)
return (1);
if (buf[i++] != 'y')
return (-1);
*size = i;
if (status == 1 || status == 2 || status == 3) {
tty_parse_client_features(c, "sync", ",");
tty_update_features(tty);
}
log_debug("%s: received DECRPM %.*s", c->name, (int)*size, buf);
tty->flags |= TTY_HAVESYNC;
return (0);
}
/*
* Handle secondary device attributes input. Returns 0 for success, -1 for
* failure, 1 for partial.

4
tty.c
View File

@@ -1,4 +1,4 @@
/* $OpenBSD: tty.c,v 1.478 2026/08/17 14:47:41 nicm Exp $ */
/* $OpenBSD: tty.c,v 1.479 2026/08/18 09:01:20 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -398,6 +398,8 @@ tty_send_requests(struct tty *tty)
tty_puts(tty, "\033[>c");
if (~tty->flags & TTY_HAVEXDA)
tty_puts(tty, "\033[>q");
if (~tty->flags & TTY_HAVESYNC)
tty_puts(tty, "\033[?2026$p");
tty_puts(tty, "\033]10;?\033\\\033]11;?\033\\");
tty->flags |= (TTY_WAITBG|TTY_WAITFG);
} else