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authorTodd C. Miller <millert@cvs.openbsd.org>2022-04-21 17:50:30 +0000
committerTodd C. Miller <millert@cvs.openbsd.org>2022-04-21 17:50:30 +0000
commit4588bca5ee4f8b297c376ac6655b53ecceaf7073 (patch)
tree39fe7749d67a9e45233032f16185b92c14431daf /usr.bin
parentb2e71f0b62be8515b77fbaaca09ab9c2fa104241 (diff)
v_event_get: check qp->output for NULL before passing to e_memcmp().
Other users of qp->output already include a NULL check. Avoids a crash when cursor key support is disabled in cl/cl_term.c. From Jeremy Mates. OK tb@
Diffstat (limited to 'usr.bin')
-rw-r--r--usr.bin/vi/common/key.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/usr.bin/vi/common/key.c b/usr.bin/vi/common/key.c
index e3a85e2e7f7..8b14269c598 100644
--- a/usr.bin/vi/common/key.c
+++ b/usr.bin/vi/common/key.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: key.c,v 1.19 2017/04/18 01:45:35 deraadt Exp $ */
+/* $OpenBSD: key.c,v 1.20 2022/04/21 17:50:29 millert Exp $ */
/*-
* Copyright (c) 1991, 1993, 1994
@@ -650,7 +650,10 @@ not_digit: argp->e_c = CH_NOT_DIGIT;
}
/* Find out if the initial segments are identical. */
- init_nomap = !e_memcmp(qp->output, &gp->i_event[gp->i_next], qp->ilen);
+ if (qp->output != NULL) {
+ init_nomap =
+ !e_memcmp(qp->output, &gp->i_event[gp->i_next], qp->ilen);
+ }
/* Delete the mapped characters from the queue. */
QREM(qp->ilen);