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authorNicholas Marriott <nicm@cvs.openbsd.org>2024-10-25 15:19:16 +0000
committerNicholas Marriott <nicm@cvs.openbsd.org>2024-10-25 15:19:16 +0000
commit0620ee63e56596a83efbce36c7496dc70a74c8b1 (patch)
tree363d7f68b3075819413c66745d68695bc20231fe
parentae9ba25cfc7f852a93c1d98f48a0be5998cd2ee6 (diff)
Do not attempt to search for zero length strings, from Alexander Arch in
GitHub issue 4209.
-rw-r--r--usr.bin/tmux/window-copy.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/usr.bin/tmux/window-copy.c b/usr.bin/tmux/window-copy.c
index d07dc2aee5d..6b703d55f0c 100644
--- a/usr.bin/tmux/window-copy.c
+++ b/usr.bin/tmux/window-copy.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: window-copy.c,v 1.360 2024/10/25 15:13:10 nicm Exp $ */
+/* $OpenBSD: window-copy.c,v 1.361 2024/10/25 15:19:15 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -3701,7 +3701,7 @@ window_copy_search(struct window_mode_entry *wme, int direction, int regex)
struct screen_write_ctx ctx;
struct grid *gd = s->grid;
const char *str = data->searchstr;
- u_int at, endline, fx, fy, start;
+ u_int at, endline, fx, fy, start, ssx;
int cis, found, keys, visible_only;
int wrapflag;
@@ -3728,7 +3728,9 @@ window_copy_search(struct window_mode_entry *wme, int direction, int regex)
fx = data->cx;
fy = screen_hsize(data->backing) - data->oy + data->cy;
- screen_init(&ss, screen_write_strlen("%s", str), 1, 0);
+ if ((ssx = screen_write_strlen("%s", str)) == 0)
+ return (0);
+ screen_init(&ss, ssx, 1, 0);
screen_write_start(&ctx, &ss);
screen_write_nputs(&ctx, -1, &grid_default_cell, "%s", str);
screen_write_stop(&ctx);