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-rw-r--r--openssl/doc/crypto/X509_VERIFY_PARAM_set_flags.pod8
1 files changed, 7 insertions, 1 deletions
diff --git a/openssl/doc/crypto/X509_VERIFY_PARAM_set_flags.pod b/openssl/doc/crypto/X509_VERIFY_PARAM_set_flags.pod
index 347d48dfe..44792f91a 100644
--- a/openssl/doc/crypto/X509_VERIFY_PARAM_set_flags.pod
+++ b/openssl/doc/crypto/X509_VERIFY_PARAM_set_flags.pod
@@ -197,6 +197,12 @@ verification. If this flag is set then additional status codes will be sent
to the verification callback and it B<must> be prepared to handle such cases
without assuming they are hard errors.
+The B<X509_V_FLAG_NO_ALT_CHAINS> flag suppresses checking for alternative
+chains. By default, when building a certificate chain, if the first certificate
+chain found is not trusted, then OpenSSL will continue to check to see if an
+alternative chain can be found that is trusted. With this flag set the behaviour
+will match that of OpenSSL versions prior to 1.0.2b.
+
=head1 NOTES
The above functions should be used to manipulate verification parameters
@@ -233,6 +239,6 @@ L<X509_check_ip(3)|X509_check_ip(3)>
=head1 HISTORY
-TBA
+The B<X509_V_FLAG_NO_ALT_CHAINS> flag was added in OpenSSL 1.0.2b
=cut