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-rw-r--r--man/nss-resolve.xml4
-rw-r--r--src/nss-resolve/nss-resolve.c13
2 files changed, 10 insertions, 7 deletions
diff --git a/man/nss-resolve.xml b/man/nss-resolve.xml
index e6cc1d982a..d66e8ba521 100644
--- a/man/nss-resolve.xml
+++ b/man/nss-resolve.xml
@@ -85,7 +85,7 @@
group: compat mymachines systemd
shadow: compat
-hosts: files mymachines <command>resolve</command> myhostname
+hosts: files mymachines <command>resolve [!UNAVAIL=return]</command> dns
networks: files
protocols: db files
@@ -95,6 +95,8 @@ rpc: db files
netgroup: nis</programlisting>
+ <para>This keeps the <command>dns</command> module as a fallback for cases where the <command>nss-resolve</command>
+ module is not installed.</para>
</refsect1>
<refsect1>
diff --git a/src/nss-resolve/nss-resolve.c b/src/nss-resolve/nss-resolve.c
index 5ce10f1cbd..eea91e3e88 100644
--- a/src/nss-resolve/nss-resolve.c
+++ b/src/nss-resolve/nss-resolve.c
@@ -279,9 +279,12 @@ fallback:
}
fail:
+ /* When we arrive here, resolved runs and has answered (fallback to
+ * "dns" is handled earlier). So we have a definitive "no" answer and
+ * should not fall back to subsequent NSS modules via "UNAVAIL". */
*errnop = -r;
*h_errnop = NO_RECOVERY;
- return NSS_STATUS_UNAVAIL;
+ return NSS_STATUS_NOTFOUND;
}
enum nss_status _nss_resolve_gethostbyname3_r(
@@ -476,7 +479,7 @@ fallback:
fail:
*errnop = -r;
*h_errnop = NO_RECOVERY;
- return NSS_STATUS_UNAVAIL;
+ return NSS_STATUS_NOTFOUND;
}
enum nss_status _nss_resolve_gethostbyaddr2_r(
@@ -558,9 +561,7 @@ enum nss_status _nss_resolve_gethostbyaddr2_r(
goto fallback;
- *errnop = -r;
- *h_errnop = NO_RECOVERY;
- return NSS_STATUS_UNAVAIL;
+ goto fail;
}
r = sd_bus_message_enter_container(reply, 'a', "(is)");
@@ -668,7 +669,7 @@ fallback:
fail:
*errnop = -r;
*h_errnop = NO_RECOVERY;
- return NSS_STATUS_UNAVAIL;
+ return NSS_STATUS_NOTFOUND;
}
NSS_GETHOSTBYNAME_FALLBACKS(resolve);