1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>vbin_printf</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="The Linux Kernel API"><link rel="up" href="libc.html#idp1122555668" title="String Conversions"><link rel="prev" href="API-sprintf.html" title="sprintf"><link rel="next" href="API-bstr-printf.html" title="bstr_printf"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">vbin_printf</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-sprintf.html">Prev</a>&#160;</td><th width="60%" align="center">String Conversions</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-bstr-printf.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-vbin-printf"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>vbin_printf &#8212; 
2     Parse a format string and place args' binary value in a buffer
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">vbin_printf </b>(</code></td><td>u32 * <var class="pdparam">bin_buf</var>, </td></tr><tr><td>&#160;</td><td>size_t <var class="pdparam">size</var>, </td></tr><tr><td>&#160;</td><td>const char * <var class="pdparam">fmt</var>, </td></tr><tr><td>&#160;</td><td>va_list <var class="pdparam">args</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1122677756"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>bin_buf</code></em></span></dt><dd><p>
4     The buffer to place args' binary value
5    </p></dd><dt><span class="term"><em class="parameter"><code>size</code></em></span></dt><dd><p>
6     The size of the buffer(by words(32bits), not characters)
7    </p></dd><dt><span class="term"><em class="parameter"><code>fmt</code></em></span></dt><dd><p>
8     The format string to use
9    </p></dd><dt><span class="term"><em class="parameter"><code>args</code></em></span></dt><dd><p>
10     Arguments for the format string
11    </p></dd></dl></div></div><div class="refsect1"><a name="idp1122682356"></a><h2>Description</h2><p>
12   The format follows C99 vsnprintf, except <code class="constant">n</code> is ignored, and its argument
13   is skipped.
14   </p><p>
15
16   The return value is the number of words(32bits) which would be generated for
17   the given input.
18</p></div><div class="refsect1"><a name="idp1122683476"></a><h2>NOTE</h2><p>
19   If the return value is greater than <em class="parameter"><code>size</code></em>, the resulting bin_buf is NOT
20   valid for <code class="function">bstr_printf</code>.
21</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-sprintf.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="libc.html#idp1122555668">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-bstr-printf.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">sprintf</span>&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;<span class="phrase">bstr_printf</span></td></tr></table></div></body></html>
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