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<?xml version="1.0" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>BIO_printf</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:root@hsxx.drive.ne.jp" /> </head> <body style="background-color: white"> <!-- INDEX BEGIN --> <div name="index"> <p><a name="__index__"></a></p> <ul> <li><a href="#name">NAME</a></li> <li><a href="#synopsis">SYNOPSIS</a></li> <li><a href="#description">DESCRIPTION</a></li> <li><a href="#return_values">RETURN VALUES</a></li> <li><a href="#copyright">COPYRIGHT</a></li> </ul> <hr name="index" /> </div> <!-- INDEX END --> <p> </p> <hr /> <h1><a name="name">NAME</a></h1> <p>BIO_printf, BIO_vprintf, BIO_snprintf, BIO_vsnprintf - formatted output to a BIO</p> <p> </p> <hr /> <h1><a name="synopsis">SYNOPSIS</a></h1> <pre> #include <openssl/bio.h></pre> <pre> int BIO_printf(BIO *bio, const char *format, ...) int BIO_vprintf(BIO *bio, const char *format, va_list args)</pre> <pre> 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)</pre> <p> </p> <hr /> <h1><a name="description">DESCRIPTION</a></h1> <p><code>BIO_printf()</code> is similar to the standard C <code>printf()</code> function, except that the output is sent to the specified BIO, <strong>bio</strong>, rather than standard output. All common format specifiers are supported.</p> <p><code>BIO_vprintf()</code> is similar to the <code>vprintf()</code> function found on many platforms, the output is sent to the specified BIO, <strong>bio</strong>, rather than standard output. All common format specifiers are supported. The argument list <strong>args</strong> is a stdarg argument list.</p> <p><code>BIO_snprintf()</code> is for platforms that do not have the common <code>snprintf()</code> function. It is like <code>sprintf()</code> except that the size parameter, <strong>n</strong>, specifies the size of the output buffer.</p> <p><code>BIO_vsnprintf()</code> is to <code>BIO_snprintf()</code> as <code>BIO_vprintf()</code> is to <code>BIO_printf()</code>.</p> <p> </p> <hr /> <h1><a name="return_values">RETURN VALUES</a></h1> <p>All functions return the number of bytes written, or -1 on error. For <code>BIO_snprintf()</code> and <code>BIO_vsnprintf()</code> this includes when the output buffer is too small.</p> <p> </p> <hr /> <h1><a name="copyright">COPYRIGHT</a></h1> <p>Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.</p> <p>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 <a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p> </body> </html>