lwres_inetntop.html revision 89da2a56413ba6294315bdde04f7547b9d71b062
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>lwres_inetntop</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"></HEAD
><BODY
CLASS="REFENTRY"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><H1
><A
NAME="AEN1"
></A
>lwres_inetntop</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN8"
></A
><H2
>Name</H2
>lwres_net_ntop -- lightweight resolver IP address presentation</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN11"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><P
></P
><A
NAME="AEN12"
></A
><PRE
CLASS="FUNCSYNOPSISINFO"
><P
><CODE
><CODE
CLASS="FUNCDEF"
>const char *
lwres_net_ntop</CODE
>(int af, const void *src, char *dst, size_t size);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN21"
></A
><H2
>DESCRIPTION</H2
><P
><CODE
CLASS="FUNCTION"
>lwres_net_ntop()</CODE
> converts an IP address of
protocol family <CODE
CLASS="PARAMETER"
>af</CODE
> — IPv4 or IPv6 —
at location <CODE
CLASS="PARAMETER"
>src</CODE
> from network format to its
conventional representation as a string. For IPv4 addresses, that
string would be a dotted-decimal. An IPv6 address would be
represented in colon notation as described in RFC1884.</P
><P
>The generated string is copied to <CODE
CLASS="PARAMETER"
>dst</CODE
> provided
<CODE
CLASS="PARAMETER"
>size</CODE
> indicates it is long enough to store the
ASCII representation of the address.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN30"
></A
><H2
>RETURN VALUES</H2
><P
>If successful, the function returns <CODE
CLASS="PARAMETER"
>dst</CODE
>:
a pointer to a string containing the presentation format of the
address. <CODE
CLASS="FUNCTION"
>lwres_net_ntop()</CODE
> returns
<SPAN
CLASS="TYPE"
>NULL</SPAN
> and sets the global variable
<CODE
CLASS="CONSTANT"
>errno</CODE
> to <SPAN
CLASS="ERRORCODE"
>EAFNOSUPPORT</SPAN
> if
the protocol family given in <CODE
CLASS="PARAMETER"
>af</CODE
> is not
supported.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN39"
></A
><H2
>SEE ALSO</H2
><P
><SPAN
CLASS="CITEREFENTRY"
><SPAN
CLASS="REFENTRYTITLE"
>RFC1884</SPAN
></SPAN
>,
<SPAN
CLASS="CITEREFENTRY"
><SPAN
CLASS="REFENTRYTITLE"
>inet_ntop</SPAN
>(3)</SPAN
>,
<SPAN
CLASS="CITEREFENTRY"
><SPAN
CLASS="REFENTRYTITLE"
>errno</SPAN
>(3)</SPAN
>.</P
></DIV
></BODY
></HTML
>