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-rw-r--r--src/basic/hostname-util.c11
-rw-r--r--src/basic/hostname-util.h1
-rw-r--r--src/nss-myhostname/nss-myhostname.c11
3 files changed, 14 insertions, 9 deletions
diff --git a/src/basic/hostname-util.c b/src/basic/hostname-util.c
index d901a5e82b..dc5434fcd1 100644
--- a/src/basic/hostname-util.c
+++ b/src/basic/hostname-util.c
@@ -151,6 +151,17 @@ bool is_localhost(const char *hostname) {
endswith_no_case(hostname, ".localdomain.");
}
+bool is_gateway_hostname(const char *hostname) {
+ assert(hostname);
+
+ /* This tries to identify the valid syntaxes for the our
+ * synthetic "gateway" host. */
+
+ return
+ strcaseeq(hostname, "gateway") ||
+ strcaseeq(hostname, "gateway.");
+}
+
int sethostname_idempotent(const char *s) {
char buf[HOST_NAME_MAX + 1] = {};
diff --git a/src/basic/hostname-util.h b/src/basic/hostname-util.h
index 6f2b5b66ff..a1ca94980d 100644
--- a/src/basic/hostname-util.h
+++ b/src/basic/hostname-util.h
@@ -33,6 +33,7 @@ bool hostname_is_valid(const char *s, bool relax) _pure_;
char* hostname_cleanup(char *s);
bool is_localhost(const char *hostname);
+bool is_gateway_hostname(const char *hostname);
int sethostname_idempotent(const char *s);
diff --git a/src/nss-myhostname/nss-myhostname.c b/src/nss-myhostname/nss-myhostname.c
index 69069cc75d..0dca891447 100644
--- a/src/nss-myhostname/nss-myhostname.c
+++ b/src/nss-myhostname/nss-myhostname.c
@@ -43,13 +43,6 @@
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,
@@ -81,7 +74,7 @@ enum nss_status _nss_myhostname_gethostbyname4_r(
canonical = "localhost";
local_address_ipv4 = htonl(INADDR_LOOPBACK);
- } else if (is_gateway(name)) {
+ } else if (is_gateway_hostname(name)) {
n_addresses = local_gateways(NULL, 0, AF_UNSPEC, &addresses);
if (n_addresses <= 0) {
@@ -351,7 +344,7 @@ enum nss_status _nss_myhostname_gethostbyname3_r(
canonical = "localhost";
local_address_ipv4 = htonl(INADDR_LOOPBACK);
- } else if (is_gateway(name)) {
+ } else if (is_gateway_hostname(name)) {
n_addresses = local_gateways(NULL, 0, af, &addresses);
if (n_addresses <= 0) {