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Do not loop forever if someone tries to give WCHAR_MAX a width, GitHub issue

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5602.
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nicm
2026-09-20 08:11:00 +00:00
committed by Nicholas Marriott
parent 757b15f2ca
commit ce9bdf6734
1 changed files with 7 additions and 2 deletions
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9
utf8.c
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@@ -1,4 +1,4 @@
/* $OpenBSD: utf8.c,v 1.72 2026/09/01 12:49:49 nicm Exp $ */ /* $OpenBSD: utf8.c,v 1.73 2026/09/20 08:11:00 nicm Exp $ */
/* /*
* Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com> * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -374,8 +374,13 @@ utf8_add_to_width_cache(const char *s)
wc_end = wc_start; wc_end = wc_start;
} }
for (wc = wc_start; wc <= wc_end; wc++) wc = wc_start;
for (;;) {
utf8_insert_width_cache(wc, width); utf8_insert_width_cache(wc, width);
if (wc == wc_end)
break;
wc++;
}
} else { } else {
utf8_no_width = 1; utf8_no_width = 1;
ud = utf8_fromcstr(copy); ud = utf8_fromcstr(copy);