Reduce len when moving past spaces in OSC 11 parameter.

diff --git a/usr.bin/tmux/input.c b/usr.bin/tmux/input.c
index cbf25b2..0ce7a65 100644 (file)
--- a/usr.bin/tmux/input.c
+++ b/usr.bin/tmux/input.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: input.c,v 1.187 2021/02/15 14:22:35 nicm Exp $ */
+/* $OpenBSD: input.c,v 1.188 2021/02/18 13:30:24 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -2460,8 +2460,10 @@ input_osc_parse_colour(const char *p)
                    (1 - m) * (1 - k) * 255,
                    (1 - y) * (1 - k) * 255);
        } else {
-               while (*p == ' ')
+               while (len != 0 && *p == ' ') {
                        p++;
+                       len--;
+               }
                while (len != 0 && p[len - 1] == ' ')
                        len--;
                copy = xstrndup(p, len);