hostname-util: explain what 'LDH' is

2020-12-15 17:59:44 +01:00
parent 1feb8eee2d
commit 9e815cf2c2
1 changed files with 2 additions and 0 deletions
@@ -89,6 +89,8 @@ int gethostname_strict(char **ret) {
 }

 bool valid_ldh_char(char c) {
+        /* "LDH" → "Letters, digits, hyphens", as per RFC 5890, Section 2.3.1 */
+
        return
                (c >= 'a' && c <= 'z') ||
                (c >= 'A' && c <= 'Z') ||