FreeBSD manual
download PDF document: BIO_set_prefix.3.pdf
BIO_F_PREFIX(3ossl) OpenSSL BIO_F_PREFIX(3ossl)
NAME
BIO_f_prefix, BIO_set_prefix, BIO_set_indent, BIO_get_indent - prefix
BIO filter
SYNOPSIS
#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);
DESCRIPTION
BIO_f_cipher() returns the prefix BIO 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.
BIO_set_prefix() sets the prefix to be used for future lines of text,
using prefix. prefix may be NULL, signifying that there should be no
prefix. If prefix isn't NULL, this function makes a copy of it.
BIO_set_indent() sets the indentation to be used for future lines of
text, using indent. Negative values are not allowed.
BIO_get_indent() gets the current indentation.
NOTES
BIO_set_prefix(), BIO_set_indent() and BIO_get_indent() are implemented
as macros.
RETURN VALUES
BIO_f_prefix() returns the prefix BIO method.
BIO_set_prefix() returns 1 if the prefix was correctly set, or <=0 on
failure.
BIO_set_indent() returns 1 if the prefix was correctly set, or <=0 on
failure.
BIO_get_indent() returns the current indentation, or a negative value
for failure.
SEE ALSO
bio(7)
COPYRIGHT
Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use