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$NetBSD: patch-lib_canonicalize.c,v 1.1 2022/04/02 21:00:54 riastradh Exp $
Fix ctype(3) abuse.
--- lib/canonicalize.c.orig 2018-07-11 13:34:54.227003733 +0000
+++ lib/canonicalize.c
@@ -57,7 +57,7 @@ static int is_dm_devname(char *canonical
if (!p
|| strncmp(p, "/dm-", 4) != 0
- || !isdigit(*(p + 4))
+ || !isdigit((unsigned char)*(p + 4))
|| stat(canonical, &sb) != 0
|| !S_ISBLK(sb.st_mode))
return 0;
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