167 lines
2.9 KiB
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167 lines
2.9 KiB
HTML
Content-type: text/html
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<HTML><HEAD><TITLE>Manpage of IPSEC_ANYADDR</TITLE>
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</HEAD><BODY>
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<H1>IPSEC_ANYADDR</H1>
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Section: C Library Functions (3)<BR>Updated: 8 Sept 2000<BR><A HREF="#index">Index</A>
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<A HREF="http://localhost/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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ipsec anyaddr - get "any" address
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<BR>
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ipsec isanyaddr - test address for equality to "any" address
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<BR>
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ipsec unspecaddr - get "unspecified" address
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<BR>
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ipsec isunspecaddr - test address for equality to "unspecified" address
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<BR>
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ipsec loopbackaddr - get loopback address
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<BR>
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ipsec isloopbackaddr - test address for equality to loopback address
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>#include <<A HREF="file:/usr/include/freeswan.h">freeswan.h</A>></B>
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<P>
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<B>const char *anyaddr(int af, ip_address *dst);</B>
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<BR>
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<B>int isanyaddr(const ip_address *src);</B>
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<BR>
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<B>const char *unspecaddr(int af, ip_address *dst);</B>
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<BR>
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<B>int isunspecaddr(const ip_address *src);</B>
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<BR>
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<B>const char *loopbackaddr(int af, ip_address *dst);</B>
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<BR>
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<B>int isloopbackaddr(const ip_address *src);</B>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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These functions fill in, and test for, special values of the
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<I>ip_address</I>
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type.
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<P>
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<I>Anyaddr</I>
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fills in the destination
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<I>*dst</I>
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with the ``any'' address of address family
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<I>af</I>
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(normally
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<B>AF_INET</B>
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or
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<B>AF_INET6</B>).
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The IPv4 ``any'' address is the one embodied in the old
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<B>INADDR_ANY</B>
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macro.
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<P>
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<I>Isanyaddr</I>
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returns
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<B>1</B>
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if the
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<I>src</I>
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address equals the ``any'' address,
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and
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<B>0</B>
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otherwise.
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<P>
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Similarly,
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<I>unspecaddr</I>
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supplies, and
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<I>isunspecaddr</I>
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tests for,
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the ``unspecified'' address,
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which may be the same as the ``any'' address.
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<P>
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Similarly,
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<I>loopbackaddr</I>
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supplies, and
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<I>islookbackaddr</I>
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tests for,
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the loopback address.
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<P>
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<I>Anyaddr</I>,
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<I>unspecaddr</I>,
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and
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<I>loopbackaddr</I>
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return
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<B>NULL</B>
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for success and
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a pointer to a string-literal error message for failure;
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see DIAGNOSTICS.
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<A NAME="lbAE"> </A>
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<H2>SEE ALSO</H2>
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<A HREF="inet.3.html">inet</A>(3), <A HREF="ipsec_addrtot.3.html">ipsec_addrtot</A>(3), <A HREF="ipsec_sameaddr.3.html">ipsec_sameaddr</A>(3)
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<A NAME="lbAF"> </A>
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<H2>DIAGNOSTICS</H2>
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Fatal errors in the address-supplying functions are:
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unknown address family.
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<A NAME="lbAG"> </A>
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<H2>HISTORY</H2>
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Written for the FreeS/WAN project by Henry Spencer.
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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><A HREF="#lbAB">NAME</A><DD>
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<DT><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT><A HREF="#lbAE">SEE ALSO</A><DD>
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<DT><A HREF="#lbAF">DIAGNOSTICS</A><DD>
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<DT><A HREF="#lbAG">HISTORY</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="http://localhost/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 21:40:17 GMT, November 11, 2003
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