diff options
| author | Gilles Chehade <gilles@cvs.openbsd.org> | 2019-08-10 09:35:44 +0000 |
|---|---|---|
| committer | Gilles Chehade <gilles@cvs.openbsd.org> | 2019-08-10 09:35:44 +0000 |
| commit | b2f897cc808359256fb0bdf050fae235bbc84c23 (patch) | |
| tree | 813b40c0b0f1df084f9ca9c850ba4d0a5362778f | |
| parent | e19f28fe9f16fc0db30d97e7a7688801e8494aec (diff) | |
valid_domainpart() uses res_hnok() internally which considers the hostnames
ending with a dot to be valid. add a check to make sure that if domain part
ends with a dot, it is rejected as it should.
issue reported by Hans Freitag <hans.freitag@conesphere.com>
| -rw-r--r-- | usr.sbin/smtpd/util.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/usr.sbin/smtpd/util.c b/usr.sbin/smtpd/util.c index 30fea943cae..509e9ffe6e4 100644 --- a/usr.sbin/smtpd/util.c +++ b/usr.sbin/smtpd/util.c @@ -1,4 +1,4 @@ -/* $OpenBSD: util.c,v 1.142 2019/07/03 03:24:03 deraadt Exp $ */ +/* $OpenBSD: util.c,v 1.143 2019/08/10 09:35:43 gilles Exp $ */ /* * Copyright (c) 2000,2001 Markus Friedl. All rights reserved. @@ -537,6 +537,9 @@ valid_domainpart(const char *s) if (*s == '\0') return 0; + if (s[strlen(s) - 1] == '.') + return 0; + return res_hnok(s); } |