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Add a maximum repeat size as well as count.

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nicm
2026-09-29 11:57:28 +00:00
committed by tmux update bot
parent 95aaa6cc2a
commit 1bb90bdd62
1 changed files with 6 additions and 3 deletions
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9
format.c
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@@ -1,4 +1,4 @@
/* $OpenBSD: format.c,v 1.421 2026/09/28 16:52:55 nicm Exp $ */
/* $OpenBSD: format.c,v 1.422 2026/09/29 11:57:28 nicm Exp $ */
/*
* Copyright (c) 2011 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -88,9 +88,12 @@ format_job_cmp(struct format_job *fj1, struct format_job *fj2)
/* Maximum pad and trim width. */
#define FORMAT_MAX_WIDTH 10000
/* Maximum repeat size. */
/* Maximum repeat count. */
#define FORMAT_MAX_REPEAT 10000
/* Maximum repeat result size in bytes. */
#define FORMAT_MAX_REPEAT_SIZE 65536
/* Maximum precision. */
#define FORMAT_MAX_PRECISION 100
@@ -6409,7 +6412,7 @@ format_replace(struct format_expand_state *es, const char *key, size_t keylen,
value = xstrdup("");
else {
n = strlen(left);
if (n != 0 && nrep > (SIZE_MAX - 1) / n) {
if (n != 0 && nrep > FORMAT_MAX_REPEAT_SIZE / n) {
format_log(es, "repeat is too long: %s", copy);
value = xstrdup("");
} else {