Misc BN fixes

[oweals/openssl.git] / doc / crypto / X509_VERIFY_PARAM_set_flags.pod

diff --git a/doc/crypto/X509_VERIFY_PARAM_set_flags.pod b/doc/crypto/X509_VERIFY_PARAM_set_flags.pod
index 347d48dfec0ab75af04789f6f31c2508a81995db..44792f91a11d9ecd9decc0ce1622c21fee6b4627 100644 (file)
--- a/doc/crypto/X509_VERIFY_PARAM_set_flags.pod
+++ b/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