1 files changed, 25 insertions, 0 deletions

diff --git a/sshd.c b/sshd.c
index 539a000fd..673db87f6 100644
--- a/sshd.c
+++ b/sshd.c
@@ -127,6 +127,13 @@
 #include <Security/AuthSession.h>
 #endif
 
+#ifdef LIBWRAP
+#include <tcpd.h>
+#include <syslog.h>
+int allow_severity;
+int deny_severity;
+#endif /* LIBWRAP */
+
 /* Re-exec fds */
 #define REEXEC_DEVCRYPTO_RESERVED_FD    (STDERR_FILENO + 1)
 #define REEXEC_STARTUP_PIPE_FD          (STDERR_FILENO + 2)
@@ -2099,6 +2106,24 @@ main(int ac, char **av)
 #ifdef SSH_AUDIT_EVENTS
         audit_connection_from(remote_ip, remote_port);
 #endif
+#ifdef LIBWRAP
+        allow_severity = options.log_facility|LOG_INFO;
+        deny_severity = options.log_facility|LOG_WARNING;
+        /* Check whether logins are denied from this host. */
+        if (packet_connection_is_on_socket()) {
+                struct request_info req;
+
+                request_init(&req, RQ_DAEMON, __progname, RQ_FILE, sock_in, 0);
+                fromhost(&req);
+
+                if (!hosts_access(&req)) {
+                        debug("Connection refused by tcp wrapper");
+                        refuse(&req);
+                        /* NOTREACHED */
+                        fatal("libwrap refuse returns");
+                }
+        }
+#endif /* LIBWRAP */
 
         rdomain = ssh_packet_rdomain_in(ssh);