diff options
| author | Damien Miller <djm@cvs.openbsd.org> | 2024-10-24 03:14:38 +0000 |
|---|---|---|
| committer | Damien Miller <djm@cvs.openbsd.org> | 2024-10-24 03:14:38 +0000 |
| commit | 3d7162d0f8db1bc9d3ec5e321c53c59211449aad (patch) | |
| tree | 00596b66404fa6527e0e427d9bd9195a47196a76 | |
| parent | b6656ea1ea80ae27b43df3dbce36726de396c955 (diff) | |
relax valid_domain() checks to allow an underscore as the first
character. ok deraadt@
| -rw-r--r-- | usr.bin/ssh/misc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/usr.bin/ssh/misc.c b/usr.bin/ssh/misc.c index a7b5b95d17c..c547ea944df 100644 --- a/usr.bin/ssh/misc.c +++ b/usr.bin/ssh/misc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: misc.c,v 1.197 2024/09/25 01:24:04 djm Exp $ */ +/* $OpenBSD: misc.c,v 1.198 2024/10/24 03:14:37 djm Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. * Copyright (c) 2005-2020 Damien Miller. All rights reserved. @@ -2299,7 +2299,8 @@ valid_domain(char *name, int makelower, const char **errstr) strlcpy(errbuf, "empty domain name", sizeof(errbuf)); goto bad; } - if (!isalpha((u_char)name[0]) && !isdigit((u_char)name[0])) { + if (!isalpha((u_char)name[0]) && !isdigit((u_char)name[0]) && + name[0] != '_' /* technically invalid, but common */) { snprintf(errbuf, sizeof(errbuf), "domain name \"%.100s\" " "starts with invalid character", name); goto bad; |