From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Thu, 8 Dec 2022 05:13:47 +0000 (+0900)
Subject: string-util: introduce ascii_ishex()
X-Git-Tag: v253-rc1~315^2~8
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0ce8870f19a839c7b09b4ef5b61c2d363050c7d9;p=thirdparty%2Fsystemd.git

string-util: introduce ascii_ishex()
---

diff --git a/src/fundamental/string-util-fundamental.h b/src/fundamental/string-util-fundamental.h
index ecf32e519fd..d8231478811 100644
--- a/src/fundamental/string-util-fundamental.h
+++ b/src/fundamental/string-util-fundamental.h
@@ -110,6 +110,10 @@ static inline bool ascii_isdigit(sd_char a) {
         return a >= '0' && a <= '9';
 }
 
+static inline bool ascii_ishex(sd_char a) {
+        return ascii_isdigit(a) || (a >= 'a' && a <= 'f') || (a >= 'A' && a <= 'F');
+}
+
 static inline bool ascii_isalpha(sd_char a) {
         /* A pure ASCII, locale independent version of isalpha() */
         return (a >= 'a' && a <= 'z') || (a >= 'A' && a <= 'Z');