bio - I/O abstraction
#include <openssl/bio.h> TBA
bio(3openssl) OpenSSL bio(3openssl)
NAME
bio - I/O abstraction
SYNOPSIS
#include <openssl/bio.h>
TBA
DESCRIPTION
A BIO is an I/O abstraction, it hides many of the underlying I/O
details from an application. If an application uses a BIO for its I/O
it can transparently handle SSL connections, unencrypted network
connections and file I/O.
There are two type of BIO, a source/sink BIO and a filter BIO.
As its name implies a source/sink BIO is a source and/or sink of data,
examples include a socket BIO and a file BIO.
A filter BIO takes data from one BIO and passes it through to another,
or the application. The data may be left unmodified (for example a
message digest BIO) or translated (for example an encryption BIO). The
effect of a filter BIO may change according to the I/O operation it is
performing: for example an encryption BIO will encrypt data if it is
being written to and decrypt data if it is being read from.
BIOs can be joined together to form a chain (a single BIO is a chain
with one component). A chain normally consist of one source/sink BIO
and one or more filter BIOs. Data read from or written to the first BIO
then traverses the chain to the end (normally a source/sink BIO).
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+--------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------------+
|Availability | library/security/openssl |
+---------------+--------------------------+
|Stability | Pass-through uncommitted |
+---------------+--------------------------+
SEE ALSO
BIO_ctrl(3), BIO_f_base64(3), BIO_f_buffer(3), BIO_f_cipher(3),
BIO_f_md(3), BIO_f_null(3), BIO_f_ssl(3), BIO_find_type(3), BIO_new(3),
BIO_new_bio_pair(3), BIO_push(3), BIO_read(3), BIO_s_accept(3),
BIO_s_bio(3), BIO_s_connect(3), BIO_s_fd(3), BIO_s_file(3),
BIO_s_mem(3), BIO_s_null(3), BIO_s_socket(3), BIO_set_callback(3),
BIO_should_retry(3)
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from
https://www.openssl.org/source/openssl-1.0.2ze.tar.gz.
Further information about this software can be found on the open source
community website at https://www.openssl.org/.
1.0.2ze 2022-05-03 bio(3openssl)