diff --git a/crypto/openssh/sshd.c b/crypto/openssh/sshd.c --- a/crypto/openssh/sshd.c +++ b/crypto/openssh/sshd.c @@ -1297,13 +1297,24 @@ SO_LINGER, &l, sizeof(l)); (void )close(*newsock); /* - * Mimic message from libwrap's refuse() - * exactly. sshguard, and supposedly lots - * of custom made scripts rely on it. + * Mimic message from libwrap's refuse() as + * precisely as we can afford. The authentic + * message prints the IP address and the + * hostname it resolves to in parentheses. If + * the IP address cannot be resolved to a + * hostname, the IP address will be repeated + * in parentheses. As name resolution in the + * main server loop could stall, and logging + * resolved names adds little or no value to + * incident investigation, this implementation + * only repeats the IP address in parentheses. + * This should resemble librwap's refuse() + * closely enough not to break auditing + * software like sshguard or custom scripts. */ syslog(LOG_WARNING, "refused connect from %s (%s)", - eval_client(&req), + eval_hostaddr(req.client), eval_hostaddr(req.client)); debug("Connection refused by tcp wrapper"); continue;