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.\" ========================================================================
.\"
.IX Title "docs::api::APR::IpSubnet 3"
.TH docs::api::APR::IpSubnet 3 "2013-04-16" "perl v5.16.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
APR::IpSubnet \- Perl API for accessing APRs ip_subnet structures
.SH "Synopsis"
.IX Header "Synopsis"
.Vb 1
\& use APR::IpSubnet ();
\&
\& my $ipsub = APR::IpSubnet\->new($pool, "127.0.0.1");
\& $ok = $ipsub\->test($sock_addr);
.Ve
.SH "Description"
.IX Header "Description"
\&\f(CW\*(C`APR::IpSubnet\*(C'\fR object represents a range of \s-1IP\s0 addresses
(IPv4/IPv6). A socket connection can be matched against this range to
test whether the \s-1IP\s0 it's coming from is inside or outside of this
range.
.SH "API"
.IX Header "API"
\&\f(CW\*(C`APR::IpSubnet\*(C'\fR provides the following functions and/or methods:
.ie n .SS """new"""
.el .SS "\f(CWnew\fP"
.IX Subsection "new"
Create an \s-1IP\s0 subnet represenation object
.PP
.Vb 2
\& $ipsubnet = APR::IpSubnet\->new($pool, $ip);
\& $ipsubnet = APR::IpSubnet\->new($pool, $ip, $mask_or_numbits);
.Ve
.ie n .IP "obj: ""APR::IpSubnet"" (class name)" 4
.el .IP "obj: \f(CWAPR::IpSubnet\fR (class name)" 4
.IX Item "obj: APR::IpSubnet (class name)"
.PD 0
.ie n .IP "arg1: $pool ( ""APR::Pool object"" )" 4
.el .IP "arg1: \f(CW$pool\fR ( \f(CWAPR::Pool object\fR )" 4
.IX Item "arg1: $pool ( APR::Pool object )"
.ie n .IP "arg2: $ip ( string )" 4
.el .IP "arg2: \f(CW$ip\fR ( string )" 4
.IX Item "arg2: $ip ( string )"
.PD
\&\s-1IP\s0 address in one of the two formats: IPv4 (e.g. \fI\*(L"127.0.0.1\*(R"\fR) or
IPv6 (e.g. \fI\*(L"::1\*(R"\fR). IPv6 addresses are accepted only if \s-1APR\s0 has the
IPv6 support enabled.
.ie n .IP "opt arg3: $mask_or_numbits ( string )" 4
.el .IP "opt arg3: \f(CW$mask_or_numbits\fR ( string )" 4
.IX Item "opt arg3: $mask_or_numbits ( string )"
An optional \s-1IP\s0 mask (e.g. \fI\*(L"255.0.0.0\*(R"\fR) or number of bits
(e.g. \fI\*(L"15\*(R"\fR).
.Sp
If none provided, the default is not to mask off.
.ie n .IP "ret: $ret ( ""APR::IpSubnet object"" )" 4
.el .IP "ret: \f(CW$ret\fR ( \f(CWAPR::IpSubnet object\fR )" 4
.IX Item "ret: $ret ( APR::IpSubnet object )"
The IP-subnet object
.ie n .IP "excpt: ""APR::Error""" 4
.el .IP "excpt: \f(CWAPR::Error\fR" 4
.IX Item "excpt: APR::Error"
.PD 0
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PD
.ie n .SS """test"""
.el .SS "\f(CWtest\fP"
.IX Subsection "test"
Test the \s-1IP\s0 address in the socket address object against a pre-built
ip-subnet representation.
.PP
.Vb 1
\& $ret = $ipsub\->test($sockaddr);
.Ve
.ie n .IP "obj: $ipsub ( ""APR::IpSubnet object"" )" 4
.el .IP "obj: \f(CW$ipsub\fR ( \f(CWAPR::IpSubnet object\fR )" 4
.IX Item "obj: $ipsub ( APR::IpSubnet object )"
The ip-subnet representation
.ie n .IP "arg1: $sockaddr ( ""APR::SockAddr object"" )" 4
.el .IP "arg1: \f(CW$sockaddr\fR ( \f(CWAPR::SockAddr object\fR )" 4
.IX Item "arg1: $sockaddr ( APR::SockAddr object )"
The socket address to test
.ie n .IP "ret: $ret ( boolean )" 4
.el .IP "ret: \f(CW$ret\fR ( boolean )" 4
.IX Item "ret: $ret ( boolean )"
true if the socket address is within the subnet, false otherwise
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PP
This method is used for testing whether or not an address is within a
subnet. It's used by module \f(CW\*(C`mod_access\*(C'\fR to check whether the client
\&\s-1IP\s0 fits into the \s-1IP\s0 range, supplied by \f(CW\*(C`Allow\*(C'\fR/\f(CW\*(C`Deny\*(C'\fR directives.
.PP
Example:
.PP
Allow accesses only from the localhost (IPv4):
.PP
.Vb 5
\& use APR::IpSubnet ();
\& use Apache2::Connection ();
\& use Apache2::RequestRec ();
\& my $ipsub = APR::IpSubnet\->new($r\->pool, "127.0.0.1");
\& ok $ipsub\->test($r\->connection\->remote_addr);
.Ve
.SH "See Also"
.IX Header "See Also"
mod_perl 2.0 documentation.
.SH "Copyright"
.IX Header "Copyright"
mod_perl 2.0 and its core modules are copyrighted under
The Apache Software License, Version 2.0.
.SH "Authors"
.IX Header "Authors"
The mod_perl development team and numerous
contributors.
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