133 lines
2.6 KiB
HTML
133 lines
2.6 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of CRYPT_PREFERRED_METHOD</TITLE>
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</HEAD><BODY>
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<H1>CRYPT_PREFERRED_METHOD</H1>
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Section: C Library Functions (3)<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<BR>BSD mandoc<BR>
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libxcrypt
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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<B>crypt_preferred_method</B>
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- get the prefix of the preferred hash method
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<A NAME="lbAC"> </A>
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<H2>LIBRARY</H2>
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Lb libcrypt
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<A NAME="lbAD"> </A>
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<H2>SYNOPSIS</H2>
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In crypt.h
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Ft const char*
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Fo crypt_preferred_method
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Fa void
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Fc <A NAME="lbAE"> </A>
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<H2>DESCRIPTION</H2>
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<B></B>
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is a convenience function to get the prefix of the preferred hash
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method. If a preferred method is available, it is the same as the
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one also used by the
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<B>crypt_gensalt functions</B>
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if their given
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<I>prefix</I>
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parameter is NULL.
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<A NAME="lbAF"> </A>
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<H2>RETURN VALUES</H2>
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The string returned equals the prefix of the preferred hash method.
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If no preferred hash method is available it is NULL. It
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<I>is</I>
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safe to pass the string returned by
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<B>crypt_preferred_method</B>
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directly to
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<B>crypt_gensalt</B>
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without prior string-sanitizing nor NULL-pointer checks.
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<A NAME="lbAG"> </A>
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<H2>FEATURE TEST MACROS</H2>
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In crypt.h
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will define the macro
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<B>CRYPT_PREFERRED_METHOD_AVAILABLE</B>
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if
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<B></B>
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is available in the current version of libxcrypt.
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<A NAME="lbAH"> </A>
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<H2>PORTABILITY NOTES</H2>
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The function
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<B></B>
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is not part of any standard.
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It was added to libxcrypt in version 4.4.0.
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<A NAME="lbAI"> </A>
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<H2>ATTRIBUTES</H2>
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For an explanation of the terms used in this section, see
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<A HREF="/cgi-bin/man/man2html?7+attributes">attributes</A>(7).
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<TABLE BORDER>
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<TR VALIGN=top><TD><B>Interface</B></TD><TD><B>Attribute</B></TD><TD><B>Value</B><BR></TD></TR>
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<TR VALIGN=top><TD>
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<B></B>
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</TD><TD>Thread safety</TD><TD>MT-Safe<BR></TD></TR>
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</TABLE>
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<P>
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<A NAME="lbAJ"> </A>
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<H2>SEE ALSO</H2>
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crypt_gensalt3
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="1"><A HREF="#lbAB">NAME</A><DD>
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<DT id="2"><A HREF="#lbAC">LIBRARY</A><DD>
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<DT id="3"><A HREF="#lbAD">SYNOPSIS</A><DD>
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<DT id="4"><A HREF="#lbAE">DESCRIPTION</A><DD>
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<DT id="5"><A HREF="#lbAF">RETURN VALUES</A><DD>
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<DT id="6"><A HREF="#lbAG">FEATURE TEST MACROS</A><DD>
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<DT id="7"><A HREF="#lbAH">PORTABILITY NOTES</A><DD>
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<DT id="8"><A HREF="#lbAI">ATTRIBUTES</A><DD>
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<DT id="9"><A HREF="#lbAJ">SEE ALSO</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:38 GMT, March 31, 2021
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