Bugzilla bug 95839: added _PR_CleanupNet() to destroy the locks created by

_PR_InitNet().  The patch is contributed by Jeff Hostetler
<jeff@NerdOne.com>.
Modified files: primpl.h prinit.c prnetdb.c ptthread.c

nsprpub/pr/include/private/primpl.h

@@ -1743,6 +1743,7 @@ extern void _PR_NotifyCondVar(PRCondVar *cvar, PRThread *me);
 extern void _PR_CleanupThread(PRThread *thread);
 extern void _PR_CleanupEnv(void);
 extern void _PR_CleanupIO(void);
+extern void _PR_CleanupNet(void);
 extern void _PR_CleanupLayerCache(void);
 extern void _PR_CleanupStacks(void);
 extern void _PR_CleanupThreads(void);

nsprpub/pr/src/misc/prinit.c

@@ -449,6 +449,7 @@ PR_IMPLEMENT(PRStatus) PR_Cleanup()
          * Ideally, for each _PR_InitXXX(), there should be a corresponding
          * _PR_XXXCleanup() that we can call here.
          */
+        _PR_CleanupNet();
         _PR_CleanupIO();
         _PR_CleanupThreads();
         PR_DestroyLock(_pr_sleeplock);

nsprpub/pr/src/misc/prnetdb.c

@@ -176,6 +176,22 @@ void _PR_InitNet(void)
 #endif
 }
 
+void _PR_CleanupNet(void)
+{
+#if !defined(_PR_NO_DNS_LOCK)
+    if (_pr_dnsLock) {
+        PR_DestroyLock(_pr_dnsLock);
+        _pr_dnsLock = NULL;
+    }
+#endif
+#if !defined(_PR_HAVE_GETPROTO_R)
+    if (_getproto_lock) {
+        PR_DestroyLock(_getproto_lock);
+        _getproto_lock = NULL;
+    }
+#endif
+}
+
 /*
 ** Allocate space from the buffer, aligning it to "align" before doing
 ** the allocation. "align" must be a power of 2.

nsprpub/pr/src/pthreads/ptthread.c

@@ -921,6 +921,7 @@ PR_IMPLEMENT(PRStatus) PR_Cleanup()
         PR_Unlock(pt_book.ml);
 
         _PR_LogCleanup();
+        _PR_CleanupNet();
         /* Close all the fd's before calling _PR_CleanupIO */
         _PR_CleanupIO();