mirror of
https://github.com/openssl/openssl.git
synced 2024-12-09 05:51:54 +08:00
f64f17c3e0
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/12452)
51 lines
1.6 KiB
Plaintext
51 lines
1.6 KiB
Plaintext
=pod
|
|
|
|
=head1 NAME
|
|
|
|
BIO_printf, BIO_vprintf, BIO_snprintf, BIO_vsnprintf
|
|
- formatted output to a BIO
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
#include <openssl/bio.h>
|
|
|
|
int BIO_printf(BIO *bio, const char *format, ...);
|
|
int BIO_vprintf(BIO *bio, const char *format, va_list args);
|
|
|
|
int BIO_snprintf(char *buf, size_t n, const char *format, ...);
|
|
int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args);
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
BIO_printf() is similar to the standard C printf() function, except that
|
|
the output is sent to the specified BIO, B<bio>, rather than standard
|
|
output. All common format specifiers are supported.
|
|
|
|
BIO_vprintf() is similar to the vprintf() function found on many platforms,
|
|
the output is sent to the specified BIO, B<bio>, rather than standard
|
|
output. All common format specifiers are supported. The argument
|
|
list B<args> is a stdarg argument list.
|
|
|
|
BIO_snprintf() is for platforms that do not have the common snprintf()
|
|
function. It is like sprintf() except that the size parameter, B<n>,
|
|
specifies the size of the output buffer.
|
|
|
|
BIO_vsnprintf() is to BIO_snprintf() as BIO_vprintf() is to BIO_printf().
|
|
|
|
=head1 RETURN VALUES
|
|
|
|
All functions return the number of bytes written, or -1 on error.
|
|
For BIO_snprintf() and BIO_vsnprintf() this includes when the output
|
|
buffer is too small.
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
|
|
|
|
Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
this file except in compliance with the License. You can obtain a copy
|
|
in the file LICENSE in the source distribution or at
|
|
L<https://www.openssl.org/source/license.html>.
|
|
|
|
=cut
|