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-rw-r--r--auth-options.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/auth-options.c b/auth-options.c
index b528c197..ef57ebf4 100644
--- a/auth-options.c
+++ b/auth-options.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: auth-options.c,v 1.78 2018/03/14 05:35:40 djm Exp $ */
+/* $OpenBSD: auth-options.c,v 1.79 2018/04/06 04:15:45 djm Exp $ */
/*
* Copyright (c) 2018 Damien Miller <djm@mindrot.org>
*
@@ -394,7 +394,7 @@ sshauthopt_parse(const char *opts, const char **errstrp)
goto fail;
}
for (cp = opt; cp < tmp; cp++) {
- if (!isalnum((u_char)*cp)) {
+ if (!isalnum((u_char)*cp) && *cp != '_') {
free(opt);
errstr = "invalid environment string";
goto fail;