Drop BIO_n{read,write}{,0}()

This is one of those strange things that should never have made it into
a security-oriented libraries. From BIO_s_bio.3:

.\" The following non-copying I/O functions are intentionally undocumented
.\" because they seem fragile and unused by anything:

It was used in a single place: the gorgeous ssltest. I'm not smart enough
to follow.  Also:

/* WARNING: The non-copying interface is largely untested as of yet
 * and may contain bugs. */

Oh, really? Into the great bitbucket in the sky you go.

ok jsing

1 files changed, 0 insertions, 4 deletions

diff --git a/src/lib/libcrypto/Symbols.list b/src/lib/libcrypto/Symbols.list
index 9f27a69512..94a22938fc 100644
--- a/src/lib/libcrypto/Symbols.list
+++ b/src/lib/libcrypto/Symbols.list
@@ -325,12 +325,8 @@ BIO_new_fp
 BIO_new_mem_buf
 BIO_new_socket
 BIO_next
-BIO_nread
-BIO_nread0
 BIO_number_read
 BIO_number_written
-BIO_nwrite
-BIO_nwrite0
 BIO_pop
 BIO_printf
 BIO_ptr_ctrl