Update copyright year

[openssl.git] / doc / man3 / X509_VERIFY_PARAM_set_flags.pod

diff --git a/doc/man3/X509_VERIFY_PARAM_set_flags.pod b/doc/man3/X509_VERIFY_PARAM_set_flags.pod
index d317fa85a48fbc2891159bae1bd4f0e41d5ea713..9b64e0a915a2e35b71a36617a9ec419b7927f1ff 100644 (file)
--- a/doc/man3/X509_VERIFY_PARAM_set_flags.pod
+++ b/doc/man3/X509_VERIFY_PARAM_set_flags.pod
@@ -56,7 +56,7 @@ X509_VERIFY_PARAM_set1_ip_asc
                                  const char *name, size_t namelen);
  void X509_VERIFY_PARAM_set_hostflags(X509_VERIFY_PARAM *param,
                                       unsigned int flags);
- unsigned int X509_VERIFY_PARAM_get_hostflags(X509_VERIFY_PARAM *param);
+ unsigned int X509_VERIFY_PARAM_get_hostflags(const X509_VERIFY_PARAM *param);
  char *X509_VERIFY_PARAM_get0_peername(X509_VERIFY_PARAM *param);
  int X509_VERIFY_PARAM_set1_email(X509_VERIFY_PARAM *param,
                                   const char *email, size_t emaillen);
@@ -133,14 +133,29 @@ B<name> clearing any previously specified host name or names.  If
 B<name> is NULL, or empty the list of hostnames is cleared, and
 name checks are not performed on the peer certificate.  If B<name>
 is NUL-terminated, B<namelen> may be zero, otherwise B<namelen>
-must be set to the length of B<name>.  When a hostname is specified,
+must be set to the length of B<name>.
+
+When a hostname is specified,
 certificate verification automatically invokes L<X509_check_host(3)>
 with flags equal to the B<flags> argument given to
 X509_VERIFY_PARAM_set_hostflags() (default zero).  Applications
 are strongly advised to use this interface in preference to explicitly
-calling L<X509_check_host(3)>, hostname checks are out of scope
+calling L<X509_check_host(3)>, hostname checks may be out of scope
 with the DANE-EE(3) certificate usage, and the internal check will
-be suppressed as appropriate when DANE support is added to OpenSSL.
+be suppressed as appropriate when DANE verification is enabled.
+
+When the subject CommonName will not be ignored, whether as a result of the
+B<X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT> host flag, or because no DNS subject
+alternative names are present in the certificate, any DNS name constraints in
+issuer certificates apply to the subject CommonName as well as the subject
+alternative name extension.
+
+When the subject CommonName will be ignored, whether as a result of the
+B<X509_CHECK_FLAG_NEVER_CHECK_SUBJECT> host flag, or because some DNS subject
+alternative names are present in the certificate, DNS name constraints in
+issuer certificates will not be applied to the subject DN.
+As described in X509_check_host(3) the B<X509_CHECK_FLAG_NEVER_CHECK_SUBJECT>
+flag takes precedence over the B<X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT> flag.
 
 X509_VERIFY_PARAM_get_hostflags() returns any host flags previously set via a
 call to X509_VERIFY_PARAM_set_hostflags().