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Diffstat (limited to 'Src/Zle/zle_keymap.c')
-rw-r--r--Src/Zle/zle_keymap.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/Src/Zle/zle_keymap.c b/Src/Zle/zle_keymap.c
index b46c74f91..c6646450d 100644
--- a/Src/Zle/zle_keymap.c
+++ b/Src/Zle/zle_keymap.c
@@ -1029,6 +1029,7 @@ static void
add_cursor_key(Keymap km, int tccode, Thingy thingy, int defchar)
{
char buf[2048];
+ int ok = 0;
/*
* Be careful not to try too hard with bindings for dubious or
@@ -1042,7 +1043,18 @@ add_cursor_key(Keymap km, int tccode, Thingy thingy, int defchar)
cursorptr = buf;
tputs(tcstr[tccode], 1, add_cursor_char);
*cursorptr = '\0';
- } else {
+
+ /*
+ * Sanity checking. If the cursor key is zero-length (unlikely,
+ * but this is termcap we're talking about), or it's a single
+ * character which is already bound, then we don't bind it.
+ */
+ if (!buf[0] || (!buf[1] && km->first[STOUC(buf[0])] != t_undefinedkey))
+ ok = 0;
+ else
+ ok = 1;
+ }
+ if (!ok) {
/* Assume the normal VT100-like values. */
sprintf(buf, "\33[%c", defchar);
}