From 9ff06108cd44e84ba6c68bfa6737e793f117e303 Mon Sep 17 00:00:00 2001
From: Nate Karstens <nate.karstens@garmin.com>
Date: Thu, 10 Aug 2017 08:46:03 -0500
Subject: [PATCH] Change a dynamic allocation to file-scope variable

Changes a variable from being dynamically-allocated to being
statically-allocated at the file scope. Addresses a Coverity
issue where it appeared that the memory was being leaked.

Upstream-Status: Submitted [dts@apple.com]

Signed-off-by: Nate Karstens <nate.karstens@garmin.com>
---
 mDNSPosix/mDNSPosix.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/mDNSPosix/mDNSPosix.c b/mDNSPosix/mDNSPosix.c
index 7aeee7b..2d25016 100755
--- a/mDNSPosix/mDNSPosix.c
+++ b/mDNSPosix/mDNSPosix.c
@@ -81,6 +81,7 @@ static sigset_t gEventSignalSet;                // Signals which event loop list
 static sigset_t gEventSignals;                  // Signals which were received while inside loop
 
 static PosixNetworkInterface *gRecentInterfaces;
+static IfChangeRec gChgRec;
 
 // ***************************************************************************
 // Globals (for debugging)
@@ -1641,18 +1642,11 @@ mDNSlocal void InterfaceChangeCallback(int fd, void *context)
 mDNSlocal mStatus WatchForInterfaceChange(mDNS *const m)
 {
     mStatus err;
-    IfChangeRec *pChgRec;
 
-    pChgRec = (IfChangeRec*) mDNSPlatformMemAllocateClear(sizeof *pChgRec);
-    if (pChgRec == NULL)
-        return mStatus_NoMemoryErr;
-
-    pChgRec->mDNS = m;
-    err = OpenIfNotifySocket(&pChgRec->NotifySD);
+    gChgRec.mDNS = m;
+    err = OpenIfNotifySocket(&gChgRec.NotifySD);
     if (err == 0)
-        err = mDNSPosixAddFDToEventLoop(pChgRec->NotifySD, InterfaceChangeCallback, pChgRec);
-    if (err)
-        mDNSPlatformMemFree(pChgRec);
+        err = mDNSPosixAddFDToEventLoop(gChgRec.NotifySD, InterfaceChangeCallback, &gChgRec);
 
     return err;
 }
-- 
2.20.1