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$NetBSD: patch-lib_colors.c,v 1.1 2022/04/02 21:00:54 riastradh Exp $
Fix ctype(3) abuse.
--- lib/colors.c.orig 2018-06-04 07:57:02.792445890 +0000
+++ lib/colors.c
@@ -363,7 +363,7 @@ static int cn_sequence(const char *str,
*seq = NULL;
/* convert logical names like "red" to the real sequence */
- if (*str != '\\' && isalpha(*str)) {
+ if (*str != '\\' && isalpha((unsigned char)*str)) {
const char *s = color_sequence_from_colorname(str);
*seq = strdup(s ? s : str);
@@ -456,7 +456,7 @@ static int colors_add_scheme(struct ul_c
rc = -ENOMEM;
/* convert logical name (e.g. "red") to real ESC code */
- if (isalpha(*seq)) {
+ if (isalpha((unsigned char)*seq)) {
const char *s = color_sequence_from_colorname(seq);
char *p;
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