xref: /aosp_15_r20/external/ot-br-posix/third_party/mDNSResponder/0002-Create-subroutine-for-cleaning-recent-interfaces.patch (revision 4a64e381480ef79f0532b2421e44e6ee336b8e0d)

From 4f7970ac1615aba7a39ae94c1ca14135265574e9 Mon Sep 17 00:00:00 2001
Message-ID: <4f7970ac1615aba7a39ae94c1ca14135265574e9.1687508149.git.stefan@agner.ch>
In-Reply-To: <e136dcdcdd93ef32ada981e89c195905eb809eea.1687508149.git.stefan@agner.ch>
References: <e136dcdcdd93ef32ada981e89c195905eb809eea.1687508149.git.stefan@agner.ch>
From: Nate Karstens <[email protected]>
Date: Wed, 28 Jun 2017 17:30:00 -0500
Subject: [PATCH] Create subroutine for cleaning recent interfaces

Moves functionality for cleaning the list of recent
interfaces into its own subroutine.

Upstream-Status: Submitted [[email protected]]

Signed-off-by: Nate Karstens <[email protected]>
Signed-off-by: Alex Kiernan <[email protected]>
---
 mDNSPosix/mDNSPosix.c | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/mDNSPosix/mDNSPosix.c b/mDNSPosix/mDNSPosix.c
index 0a7c3df..fe7242d 100644
--- a/mDNSPosix/mDNSPosix.c
+++ b/mDNSPosix/mDNSPosix.c
@@ -1322,6 +1322,19 @@ mDNSlocal int SetupSocket(struct sockaddr *intfAddr, mDNSIPPort port, int interf
     return err;
 }

+// Clean up any interfaces that have been hanging around on the RecentInterfaces list for more than a minute
+mDNSlocal void CleanRecentInterfaces(void)
+{
+    PosixNetworkInterface **ri = &gRecentInterfaces;
+    const mDNSs32 utc = mDNSPlatformUTC();
+    while (*ri)
+    {
+        PosixNetworkInterface *pi = *ri;
+        if (utc - pi->LastSeen < 60) ri = (PosixNetworkInterface **)&pi->coreIntf.next;
+        else { *ri = (PosixNetworkInterface *)pi->coreIntf.next; mdns_free(pi); }
+    }
+}
+
 // Creates a PosixNetworkInterface for the interface whose IP address is
 // intfAddr and whose name is intfName and registers it with mDNS core.
 mDNSlocal int SetupOneInterface(mDNS *const m, struct sockaddr *intfAddr, struct sockaddr *intfMask,
@@ -1559,16 +1572,7 @@ mDNSlocal int SetupInterfaceList(mDNS *const m)

     // Clean up.
     if (intfList != NULL) freeifaddrs(intfList);
-
-    // Clean up any interfaces that have been hanging around on the RecentInterfaces list for more than a minute
-    PosixNetworkInterface **ri = &gRecentInterfaces;
-    const mDNSs32 utc = mDNSPlatformUTC();
-    while (*ri)
-    {
-        PosixNetworkInterface *pi = *ri;
-        if (utc - pi->LastSeen < 60) ri = (PosixNetworkInterface **)&pi->coreIntf.next;
-        else { *ri = (PosixNetworkInterface *)pi->coreIntf.next; mdns_free(pi); }
-    }
+    CleanRecentInterfaces();

     return err;
 }
--
2.41.0