nss-myhostname: introduce is_gateway() similar to the existing is_hostname()

diff --git a/src/nss-myhostname/nss-myhostname.c b/src/nss-myhostname/nss-myhostname.c
index 2f768603b00d2d6ea26ad6b4add2d72ce1f9cffa..dcf7c1f5de025d561094b400c0172aed4d91aaf0 100644 (file)
--- a/src/nss-myhostname/nss-myhostname.c
+++ b/src/nss-myhostname/nss-myhostname.c
@@ -47,6 +47,13 @@
 NSS_GETHOSTBYNAME_PROTOTYPES(myhostname);
 NSS_GETHOSTBYADDR_PROTOTYPES(myhostname);
 
+static bool is_gateway(const char *hostname) {
+        assert(hostname);
+
+        return streq(hostname, "gateway") ||
+               streq(hostname, "gateway.");
+}
+
 enum nss_status _nss_myhostname_gethostbyname4_r(
                 const char *name,
                 struct gaih_addrtuple **pat,
@@ -78,7 +85,7 @@ enum nss_status _nss_myhostname_gethostbyname4_r(
                 canonical = "localhost";
                 local_address_ipv4 = htonl(INADDR_LOOPBACK);
 
-        } else if (streq(name, "gateway") || streq(name, "gateway.")) {
+        } else if (is_gateway(name)) {
 
                 n_addresses = local_gateways(NULL, 0, AF_UNSPEC, &addresses);
                 if (n_addresses <= 0) {
@@ -348,7 +355,7 @@ enum nss_status _nss_myhostname_gethostbyname3_r(
                 canonical = "localhost";
                 local_address_ipv4 = htonl(INADDR_LOOPBACK);
 
-        } else if (streq(name, "gateway") || streq(name, "gateway.")) {
+        } else if (is_gateway(name)) {
 
                 n_addresses = local_gateways(NULL, 0, af, &addresses);
                 if (n_addresses <= 0) {