Automatically generated by Pod::Man 4.14 (Pod::Simple 3.40)

Standard preamble:
========================================================================
..
..
.. Set up some character translations and predefined strings. \*(-- will
give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
double quote, and \*(R" will give a right double quote. \*(C+ will
give a nicer C++. Capital omega is used to do unbreakable dashes and
therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
nothing in troff, for use with C<>.
.tr \(*W- . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' . ds C` . ds C' 'br\}
Escape single quotes in literal strings from groff's Unicode transform.

If the F register is >0, we'll generate index entries on stderr for
titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
entries marked with X<> in POD. Of course, you'll have to process the
output yourself in some meaningful fashion.

Avoid warning from groff about undefined register 'F'.
.. .nr rF 0 . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF
Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
Fear. Run. Save yourself. No user-serviceable parts.
. \" fudge factors for nroff and troff . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] .\} . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} . \" troff and (daisy-wheel) nroff accents . \" corrections for vroff . \" for low resolution devices (crt and lpr) \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} ========================================================================

Title "BIO_GET_DATA 3"
BIO_GET_DATA 3 "2023-08-01" "3.0.10" "OpenSSL"
For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
"NAME"
BIO_set_data, BIO_get_data, BIO_set_init, BIO_get_init, BIO_set_shutdown, BIO_get_shutdown - functions for managing BIO state information
"SYNOPSIS"
Header "SYNOPSIS" .Vb 1 #include <openssl/bio.h> \& void BIO_set_data(BIO *a, void *ptr); void *BIO_get_data(BIO *a); void BIO_set_init(BIO *a, int init); int BIO_get_init(BIO *a); void BIO_set_shutdown(BIO *a, int shut); int BIO_get_shutdown(BIO *a); .Ve
"DESCRIPTION"
Header "DESCRIPTION" These functions are mainly useful when implementing a custom \s-1BIO.\s0

The BIO_set_data() function associates the custom data pointed to by ptr with the \s-1BIO.\s0 This data can subsequently be retrieved via a call to BIO_get_data(). This can be used by custom BIOs for storing implementation specific information.

The BIO_set_init() function sets the value of the \s-1BIO\s0's \*(L"init\*(R" flag to indicate whether initialisation has been completed for this \s-1BIO\s0 or not. A nonzero value indicates that initialisation is complete, whilst zero indicates that it is not. Often initialisation will complete during initial construction of the \s-1BIO.\s0 For some BIOs however, initialisation may not complete until after additional steps have occurred (for example through calling custom ctrls). The BIO_get_init() function returns the value of the \*(L"init\*(R" flag.

The BIO_set_shutdown() and BIO_get_shutdown() functions set and get the state of this \s-1BIO\s0's shutdown (i.e. \s-1BIO_CLOSE\s0) flag. If set then the underlying resource is also closed when the \s-1BIO\s0 is freed.

"RETURN VALUES"
Header "RETURN VALUES" \fBBIO_get_data() returns a pointer to the implementation specific custom data associated with this \s-1BIO,\s0 or \s-1NULL\s0 if none has been set.

\fBBIO_get_init() returns the state of the \s-1BIO\s0's init flag.

\fBBIO_get_shutdown() returns the stat of the \s-1BIO\s0's shutdown (i.e. \s-1BIO_CLOSE\s0) flag.

"SEE ALSO"
Header "SEE ALSO" \fBbio\|(7), BIO_meth_new\|(3)
"HISTORY"
Header "HISTORY" The functions described here were added in OpenSSL 1.1.0.
"COPYRIGHT"
Header "COPYRIGHT" Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.