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-rw-r--r--doc/crypto/BIO_new_bio_pair.pod3
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/crypto/BIO_new_bio_pair.pod b/doc/crypto/BIO_new_bio_pair.pod
index 2256ba9d34..58a3fb2a9d 100644
--- a/doc/crypto/BIO_new_bio_pair.pod
+++ b/doc/crypto/BIO_new_bio_pair.pod
@@ -12,7 +12,8 @@ BIO_new_bio_pair - create a new BIO pair
=head1 DESCRIPTION
-BIO_new_bio_pair() creates a buffering BIO pair. It has two endpoints between
+BIO_new_bio_pair() creates a buffering BIO pair based on the
+L<SSL_set_bio(3)|SSL_set_bio(3)> method. The BIO pair has two endpoints between which
data can be buffered. Its typical use is to connect one endpoint as underlying
input/output BIO to an SSL and access the other one controlled by the program
instead of accessing the network connection directly.