Call strlen() if name length provided is 0, like OpenSSL does.

Issue notice by Christian Heimes <christian@python.org>
ok deraadt@ jsing@

1 files changed, 3 insertions, 1 deletions

diff --git a/src/lib/libcrypto/x509/x509_vpm.c b/src/lib/libcrypto/x509/x509_vpm.c
index e0111d2f17..0897137697 100644
--- a/src/lib/libcrypto/x509/x509_vpm.c
+++ b/src/lib/libcrypto/x509/x509_vpm.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: x509_vpm.c,v 1.16 2017/12/09 07:09:25 deraadt Exp $ */
+/* $OpenBSD: x509_vpm.c,v 1.17 2018/03/22 15:54:46 beck Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2004.
  */
@@ -130,6 +130,8 @@ int_x509_param_set_hosts(X509_VERIFY_PARAM_ID *id, int mode,
 {
         char *copy;
 
+        if (name != NULL && namelen == 0)
+                namelen = strlen(name);
         /*
          * Refuse names with embedded NUL bytes.
          * XXX: Do we need to push an error onto the error stack?