Add function to return internal enoding of X509_NAME.

PR#4280

Reviewed-by: Tim Hudson <tjh@openssl.org>

1 files changed, 20 insertions, 6 deletions

diff --git a/doc/crypto/d2i_X509_NAME.pod b/doc/crypto/d2i_X509_NAME.pod
index ca52f53f16..d1d32dfcd8 100644
--- a/doc/crypto/d2i_X509_NAME.pod
+++ b/doc/crypto/d2i_X509_NAME.pod
@@ -11,21 +11,35 @@ d2i_X509_NAME, i2d_X509_NAME - X509_NAME encoding functions
  X509_NAME *d2i_X509_NAME(X509_NAME **a, unsigned char **pp, long length);
  int i2d_X509_NAME(X509_NAME *a, unsigned char **pp);
 
+ int X509_NAME_get0_der(const unsigned char **pder, size_t *pderlen,
+                        X509_NAME *nm)
+
+
 =head1 DESCRIPTION
 
-These functions decode and encode an B<X509_NAME> structure which is the
-same as the B<Name> type defined in RFC2459 (and elsewhere) and used
-for example in certificate subject and issuer names.
+The functions d2i_X509_NAME() and i2d_X509_NAME() decode and encode an
+B<X509_NAME> structure which is the same as the B<Name> type defined in
+RFC3280 (and elsewhere) and used for example in certificate subject and
+issuer names.
 
 Otherwise the functions behave in a similar way to d2i_X509() and i2d_X509()
 described in the L<d2i_X509(3)> manual page.
 
+The function X509_NAME_get0_der() returns an internal pointer to the
+encoding of an B<X509_NAME> structure in B<*pder> and consisting of
+B<*pderlen> bytes. It is useful for applications that wish to examine
+the encoding of an B<X509_NAME> structure without copying it.
+
+=head1 RETURN VALUES
+
 =head1 SEE ALSO
 
-L<d2i_X509(3)>
+The meanings of the return values of d2i_X509_NAME() and i2d_X509_NAME()
+are similar to those for d2i_X509() and i2d_X509().
 
-=head1 HISTORY
+The function X509_NAME_get0_der() returns 1 for success and 0 if an error
+occurred.
 
-TBA
+L<d2i_X509(3)>
 
 =cut