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authorNicholas Marriott <nicm@cvs.openbsd.org>2017-06-04 09:02:37 +0000
committerNicholas Marriott <nicm@cvs.openbsd.org>2017-06-04 09:02:37 +0000
commit1e19e4992bacd93b3ad49d2ede105234949b3408 (patch)
treef16dc1ddf04104f14226ec4090bf7cf8f742a011 /usr.bin/tmux/input.c
parentb51b06c97665d8f1eafbd2fee4d3d9b4a8811d13 (diff)
Be more strict about escape sequences that rename windows or set titles:
ignore any that not valid UTF-8 outright, and for good measure pass the result through our UTF-8-aware vis(3).
Diffstat (limited to 'usr.bin/tmux/input.c')
-rw-r--r--usr.bin/tmux/input.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/usr.bin/tmux/input.c b/usr.bin/tmux/input.c
index 7eb4b20f7a8..e6ea4c95feb 100644
--- a/usr.bin/tmux/input.c
+++ b/usr.bin/tmux/input.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: input.c,v 1.123 2017/06/03 17:43:01 nicm Exp $ */
+/* $OpenBSD: input.c,v 1.124 2017/06/04 09:02:36 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -1896,8 +1896,10 @@ input_exit_osc(struct input_ctx *ictx)
switch (option) {
case 0:
case 2:
- screen_set_title(ictx->ctx.s, p);
- server_status_window(ictx->wp->window);
+ if (utf8_isvalid(p)) {
+ screen_set_title(ictx->ctx.s, p);
+ server_status_window(ictx->wp->window);
+ }
break;
case 4:
input_osc_4(ictx->wp, p);
@@ -1909,7 +1911,7 @@ input_exit_osc(struct input_ctx *ictx)
input_osc_11(ictx->wp, p);
break;
case 12:
- if (*p != '?') /* ? is colour request */
+ if (utf8_isvalid(p) && *p != '?') /* ? is colour request */
screen_set_cursor_colour(ictx->ctx.s, p);
break;
case 52:
@@ -1945,6 +1947,8 @@ input_exit_apc(struct input_ctx *ictx)
return;
log_debug("%s: \"%s\"", __func__, ictx->input_buf);
+ if (!utf8_isvalid(ictx->input_buf))
+ return;
screen_set_title(ictx->ctx.s, ictx->input_buf);
server_status_window(ictx->wp->window);
}
@@ -1968,9 +1972,10 @@ input_exit_rename(struct input_ctx *ictx)
return;
log_debug("%s: \"%s\"", __func__, ictx->input_buf);
+ if (!utf8_isvalid(ictx->input_buf))
+ return;
window_set_name(ictx->wp->window, ictx->input_buf);
options_set_number(ictx->wp->window->options, "automatic-rename", 0);
-
server_status_window(ictx->wp->window);
}