Add SPDX license identifiers to source files under the LGPL

[thirdparty/systemd.git] / src / resolve / resolved-dns-transaction.c

diff --git a/src/resolve/resolved-dns-transaction.c b/src/resolve/resolved-dns-transaction.c
index 8b231323392975bf625f4083920633c7e9ebb9dd..a66d60540534de98933f8a10761b2cb5529f2de0 100644 (file)
--- a/src/resolve/resolved-dns-transaction.c
+++ b/src/resolve/resolved-dns-transaction.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
@@ -190,7 +191,7 @@ int dns_transaction_new(DnsTransaction **ret, DnsScope *s, DnsResourceKey *key)
                 return -EOPNOTSUPP;
 
         /* We only support the IN class */
-        if (key->class != DNS_CLASS_IN && key->class != DNS_CLASS_ANY)
+        if (!IN_SET(key->class, DNS_CLASS_IN, DNS_CLASS_ANY))
                 return -EOPNOTSUPP;
 
         if (hashmap_size(s->manager->dns_transactions) >= TRANSACTIONS_MAX)
@@ -1593,7 +1594,7 @@ int dns_transaction_go(DnsTransaction *t) {
                         log_debug("Sending query via TCP since it is too large.");
                 else if (r == -EAGAIN)
                         log_debug("Sending query via TCP since server doesn't support UDP.");
-                if (r == -EMSGSIZE || r == -EAGAIN)
+                if (IN_SET(r, -EMSGSIZE, -EAGAIN))
                         r = dns_transaction_open_tcp(t);
         }