Revision e37b7014f3f52124b787ca1b5b51b0111462a0ac authored by Tomas Mraz on 12 October 2018, 15:24:14 UTC, committed by Kurt Roeckx on 10 November 2018, 20:30:27 UTC
Reviewed-by: Kurt Roeckx <kurt@roeckx.be> Reviewed-by: Richard Levitte <levitte@openssl.org> GH: #7391 (cherry picked from commit 75b68c9e4e8591a4ebe083cb207aeb121baf549f)
1 parent 98f6297
BIO_printf.pod
=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 OpenSSL license (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

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