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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /openssl/doc/crypto/bio.pod | |
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pthreads-w32-2-8-0-release.tar.gz
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evieext-1.0.2.tar.gz
fixesproto-4.0.tar.gz
recordproto-1.13.2.tar.gz
randrproto-1.2.2.tar.gz
scrnsaverproto-1.1.0.tar.gz
renderproto-0.9.3.tar.gz
xcmiscproto-1.1.2.tar.gz
fontsproto-2.0.2.tar.gz
xextproto-7.0.3.tar.gz
xproto-7.0.14.tar.gz
libXdmcp-1.0.2.tar.gz
libxkbfile-1.0.5.tar.gz
libfontenc-1.0.4.tar.gz
libXfont-1.3.4.tar.gz
libX11-1.1.5.tar.gz
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xorg-server-1.5.3.tar.gz
Diffstat (limited to 'openssl/doc/crypto/bio.pod')
-rw-r--r-- | openssl/doc/crypto/bio.pod | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/openssl/doc/crypto/bio.pod b/openssl/doc/crypto/bio.pod new file mode 100644 index 000000000..f9239226f --- /dev/null +++ b/openssl/doc/crypto/bio.pod @@ -0,0 +1,54 @@ +=pod + +=head1 NAME + +bio - I/O abstraction + +=head1 SYNOPSIS + + #include <openssl/bio.h> + +TBA + + +=head1 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). + +=head1 SEE ALSO + +L<BIO_ctrl(3)|BIO_ctrl(3)>, +L<BIO_f_base64(3)|BIO_f_base64(3)>, L<BIO_f_buffer(3)|BIO_f_buffer(3)>, +L<BIO_f_cipher(3)|BIO_f_cipher(3)>, L<BIO_f_md(3)|BIO_f_md(3)>, +L<BIO_f_null(3)|BIO_f_null(3)>, L<BIO_f_ssl(3)|BIO_f_ssl(3)>, +L<BIO_find_type(3)|BIO_find_type(3)>, L<BIO_new(3)|BIO_new(3)>, +L<BIO_new_bio_pair(3)|BIO_new_bio_pair(3)>, +L<BIO_push(3)|BIO_push(3)>, L<BIO_read(3)|BIO_read(3)>, +L<BIO_s_accept(3)|BIO_s_accept(3)>, L<BIO_s_bio(3)|BIO_s_bio(3)>, +L<BIO_s_connect(3)|BIO_s_connect(3)>, L<BIO_s_fd(3)|BIO_s_fd(3)>, +L<BIO_s_file(3)|BIO_s_file(3)>, L<BIO_s_mem(3)|BIO_s_mem(3)>, +L<BIO_s_null(3)|BIO_s_null(3)>, L<BIO_s_socket(3)|BIO_s_socket(3)>, +L<BIO_set_callback(3)|BIO_set_callback(3)>, +L<BIO_should_retry(3)|BIO_should_retry(3)> |