dns-domain: use DNS_LABEL_MAX at one more place

diff --git a/src/shared/dns-domain.c b/src/shared/dns-domain.c
index e43aa12882a84396cafc020e5fad15c28e91a917..ec3021d602ee8780edd10087e3d7fb779cf46adc 100644 (file)
--- a/src/shared/dns-domain.c
+++ b/src/shared/dns-domain.c
@@ -985,7 +985,7 @@ bool dns_service_name_is_valid(const char *name) {
         l = strlen(name);
         if (l <= 0)
                 return false;
-        if (l > 63)
+        if (l > DNS_LABEL_MAX)
                 return false;
 
         return true;