xref: /freebsd/secure/lib/libcrypto/man/man3/BIO_f_prefix.3 (revision 9f23cbd6cae82fd77edfad7173432fa8dccd0a95)
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_F_PREFIX 3"
BIO_F_PREFIX 3 "2023-05-30" "3.0.9" "OpenSSL"
For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
"NAME"
BIO_f_prefix, BIO_set_prefix, BIO_set_indent, BIO_get_indent \- prefix BIO filter
"SYNOPSIS"
Header "SYNOPSIS" .Vb 1 #include <openssl/bio.h> \& const BIO_METHOD *BIO_f_prefix(void); long BIO_set_prefix(BIO *b, const char *prefix); long BIO_set_indent(BIO *b, long indent); long BIO_get_indent(BIO *b); .Ve
"DESCRIPTION"
Header "DESCRIPTION" \fBBIO_f_cipher() returns the prefix \s-1BIO\s0 method. This is a filter for text output, where each line gets automatically prefixed and indented according to user input.

The prefix and the indentation are combined. For each line of output going through this filter, the prefix is output first, then the amount of additional spaces indicated by the indentation, and then the line itself.

By default, there is no prefix, and indentation is set to 0.

\fBBIO_set_prefix() sets the prefix to be used for future lines of text, using prefix. prefix may be \s-1NULL,\s0 signifying that there should be no prefix. If prefix isn't \s-1NULL,\s0 this function makes a copy of it.

\fBBIO_set_indent() sets the indentation to be used for future lines of text, using indent. Negative values are not allowed.

\fBBIO_get_indent() gets the current indentation.

"NOTES"
Header "NOTES" \fBBIO_set_prefix(), BIO_set_indent() and BIO_get_indent() are implemented as macros.
"RETURN VALUES"
Header "RETURN VALUES" \fBBIO_f_prefix() returns the prefix \s-1BIO\s0 method.

\fBBIO_set_prefix() returns 1 if the prefix was correctly set, or <=0 on failure.

\fBBIO_set_indent() returns 1 if the prefix was correctly set, or <=0 on failure.

\fBBIO_get_indent() returns the current indentation, or a negative value for failure.

"SEE ALSO"
Header "SEE ALSO" \fBbio\|(7)
"COPYRIGHT"
Header "COPYRIGHT" Copyright 2019-2021 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>.