1 files changed, 0 insertions, 77 deletions
diff --git a/doc/crypto/BIO_read.pod b/doc/crypto/BIO_read.pod
deleted file mode 100644
index 45871c1be9..0000000000
--- a/doc/crypto/BIO_read.pod
+++ /dev/null
@@ -1,77 +0,0 @@
-=pod
-
-=head1 NAME
-
-BIO_read, BIO_write, BIO_gets, BIO_puts - BIO I/O functions
-
-=head1 SYNOPSIS
-
- #include <openssl/bio.h>
-
- int    BIO_read(BIO *b, void *buf, int len);
- int    BIO_gets(BIO *b, char *buf, int size);
- int    BIO_write(BIO *b, const void *buf, int len);
- int    BIO_puts(BIO *b, const char *buf);
-
-=head1 DESCRIPTION
-
-BIO_read() attempts to read B<len> bytes from BIO B<b> and places
-the data in B<buf>.
-
-BIO_gets() performs the BIOs "gets" operation and places the data
-in B<buf>. Usually this operation will attempt to read a line of data
-from the BIO of maximum length B<len-1>. There are exceptions to this,
-however; for example, BIO_gets() on a digest BIO will calculate and
-return the digest and other BIOs may not support BIO_gets() at all.
-The returned string is always NUL-terminated.
-
-BIO_write() attempts to write B<len> bytes from B<buf> to BIO B<b>.
-
-BIO_puts() attempts to write a NUL-terminated string B<buf> to BIO B<b>.
-
-=head1 RETURN VALUES
-
-All these functions return either the amount of data successfully read or
-written (if the return value is positive) or that no data was successfully
-read or written if the result is 0 or -1. If the return value is -2 then
-the operation is not implemented in the specific BIO type.  The trailing
-NUL is not included in the length returned by BIO_gets().
-
-=head1 NOTES
-
-A 0 or -1 return is not necessarily an indication of an error. In
-particular when the source/sink is non-blocking or of a certain type
-it may merely be an indication that no data is currently available and that
-the application should retry the operation later.
-
-One technique sometimes used with blocking sockets is to use a system call
-(such as select(), poll() or equivalent) to determine when data is available
-and then call read() to read the data. The equivalent with BIOs (that is call
-select() on the underlying I/O structure and then call BIO_read() to
-read the data) should B<not> be used because a single call to BIO_read()
-can cause several reads (and writes in the case of SSL BIOs) on the underlying
-I/O structure and may block as a result. Instead select() (or equivalent)
-should be combined with non blocking I/O so successive reads will request
-a retry instead of blocking.
-
-See L<BIO_should_retry(3)> for details of how to
-determine the cause of a retry and other I/O issues.
-
-If the BIO_gets() function is not supported by a BIO then it possible to
-work around this by adding a buffering BIO L<BIO_f_buffer(3)>
-to the chain.
-
-=head1 SEE ALSO
-
-L<BIO_should_retry(3)>
-
-=head1 COPYRIGHT
-
-Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
-
-Licensed under the OpenSSL license (the "License").  You may not use
-this file except in compliance with the License.  You can obtain a copy
-in the file LICENSE in the source distribution or at
-L<https://www.openssl.org/source/license.html>.
-
-=cut