diff options
Diffstat (limited to 'src/smtpd/smtpd_check.c')
| -rw-r--r-- | src/smtpd/smtpd_check.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/smtpd/smtpd_check.c b/src/smtpd/smtpd_check.c index 996a19e..513652d 100644 --- a/src/smtpd/smtpd_check.c +++ b/src/smtpd/smtpd_check.c @@ -2993,6 +2993,7 @@ static int check_server_access(SMTPD_STATE *state, const char *table, struct addrinfo *res; int status; const INET_PROTO_INFO *proto_info; + int server_addr_count = 0; /* * Sanity check. @@ -3144,6 +3145,15 @@ static int check_server_access(SMTPD_STATE *state, const char *table, msg_info("%s: %s host address check: %s", myname, dns_strtype(type), (char *) server->data); for (res = res0; res != 0; res = res->ai_next) { + server_addr_count += 1; + if (server_addr_count > var_dns_rr_list_limit) { + msg_warn("%s: %s server address count limit (%d) exceeded" + " for %s %s -- ignoring the remainder", myname, + dns_strtype(type), var_dns_rr_list_limit, + reply_class, reply_name); + freeaddrinfo(res0); + CHECK_SERVER_RETURN(SMTPD_CHECK_DUNNO); + } if (strchr((char *) proto_info->sa_family_list, res->ai_family) == 0) { if (msg_verbose) msg_info("skipping address family %d for host %s", |