Add SPDX license identifiers to source files under the LGPL

[thirdparty/systemd.git] / src / nss-myhostname / nss-myhostname.c

diff --git a/src/nss-myhostname/nss-myhostname.c b/src/nss-myhostname/nss-myhostname.c
index 0570fde5920aad972bbabe139b677f5a984baebd..39714fe3c22fafd6ec7727683221190fc094aaf2 100644 (file)
--- a/src/nss-myhostname/nss-myhostname.c
+++ b/src/nss-myhostname/nss-myhostname.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
@@ -86,7 +87,7 @@ enum nss_status _nss_myhostname_gethostbyname4_r(
                         return NSS_STATUS_NOTFOUND;
                 }
 
-                canonical = "gateway";
+                canonical = "_gateway";
 
         } else {
                 hn = gethostname_malloc();
@@ -211,7 +212,7 @@ static enum nss_status fill_in_hostent(
                         c++;
 
         l_canonical = strlen(canonical);
-        l_additional = additional ? strlen(additional) : 0;
+        l_additional = strlen_ptr(additional);
         ms = ALIGN(l_canonical+1)+
                 (additional ? ALIGN(l_additional+1) : 0) +
                 sizeof(char*) +
@@ -337,7 +338,7 @@ enum nss_status _nss_myhostname_gethostbyname3_r(
         if (af == AF_UNSPEC)
                 af = AF_INET;
 
-        if (af != AF_INET && af != AF_INET6) {
+        if (!IN_SET(af, AF_INET, AF_INET6)) {
                 *errnop = EAFNOSUPPORT;
                 *h_errnop = NO_DATA;
                 return NSS_STATUS_UNAVAIL;
@@ -356,7 +357,7 @@ enum nss_status _nss_myhostname_gethostbyname3_r(
                         return NSS_STATUS_NOTFOUND;
                 }
 
-                canonical = "gateway";
+                canonical = "_gateway";
 
         } else {
                 hn = gethostname_malloc();
@@ -467,7 +468,7 @@ enum nss_status _nss_myhostname_gethostbyaddr2_r(
                         continue;
 
                 if (memcmp(addr, &a->address, FAMILY_ADDRESS_SIZE(af)) == 0) {
-                        canonical = "gateway";
+                        canonical = "_gateway";
                         goto found;
                 }
         }