From cf3466963b0c2f1013d8b78f0a37bbea7b6725fb Mon Sep 17 00:00:00 2001
From: Sadie Powell
Date: Sun, 18 Dec 2022 01:01:43 +0000
Subject: Add is_local to the sockaddrs union.

---
 src/socket.cpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'src/socket.cpp')

diff --git a/src/socket.cpp b/src/socket.cpp
index bb2fb6b17..0f2905cfd 100644
--- a/src/socket.cpp
+++ b/src/socket.cpp
@@ -218,6 +218,25 @@ sa_family_t irc::sockets::sockaddrs::family() const
 	return sa.sa_family;
 }
 
+bool irc::sockets::sockaddrs::is_local() const
+{
+	switch (family())
+	{
+		case AF_INET:
+			return irc::sockets::cidr_mask("127.0.0.0/8").match(*this);
+
+		case AF_INET6:
+			return irc::sockets::cidr_mask("::1/128").match(*this);
+
+		case AF_UNIX:
+			return true;
+	}
+
+	// If we have reached this point then we have encountered a bug.
+	ServerInstance->Logs.Debug("SOCKET", "BUG: irc::sockets::sockaddrs::is_local(): socket type %hu is unknown!", family());
+	return false;
+}
+
 int irc::sockets::sockaddrs::port() const
 {
 	switch (family())
-- 
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