From 2a3d906e217757e3cbb4f3c089a09a4cb9cb8f75 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@gnu.org>
Date: Sat, 22 Feb 2003 01:58:06 +0000
Subject: [PATCH] * malloc/thread-freeres.c: Conditionalize on _LIBC_REENTRANT.

	* sunrpc/rpc_thread.c: Likewise for text_set_element use.
	(__rpc_thread_destroy): Add it to __libc_subfreeres too.

	* include/resolv.h: Add libc_hidden_proto for __res_nclose.
	* resolv/res_init.c (__res_nclose): Add libc_hidden_def.
	(res_thread_freeres): New function, on __libc_thread_subfreeres and
	__libc_subfreeres.

	* malloc/Versions (libc: GLIBC_PRIVATE): Add __libc_thread_freeres.
	* sunrpc/Versions (libc: GLIBC_PRIVATE): Removed.
---
 ChangeLog               | 13 +++++++++++--
 include/resolv.h        |  1 +
 malloc/thread-freeres.c |  2 ++
 resolv/res_init.c       | 24 ++++++++++++++++++++++++
 sunrpc/rpc_thread.c     |  4 ++++
 5 files changed, 42 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index a10cc32..bfc5e15 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,9 +1,18 @@
 2003-02-21  Roland McGrath  <roland@redhat.com>
 
-	* malloc/Versions (GLIBC_PRIVATE): Add __libc_thread_freeres.
+	* malloc/thread-freeres.c: Conditionalize on _LIBC_REENTRANT.
+	* sunrpc/rpc_thread.c: Likewise for text_set_element use.
+	(__rpc_thread_destroy): Add it to __libc_subfreeres too.
+
+	* include/resolv.h: Add libc_hidden_proto for __res_nclose.
+	* resolv/res_init.c (__res_nclose): Add libc_hidden_def.
+	(res_thread_freeres): New function, on __libc_thread_subfreeres and
+	__libc_subfreeres.
+
+	* malloc/Versions (libc: GLIBC_PRIVATE): Add __libc_thread_freeres.
 	* malloc/thread-freeres.c: New file.
 	* malloc/Makefile (aux): Add it.
-	* sunrpc/Versions (GLIBC_PRIVATE): Removed.
+	* sunrpc/Versions (libc: GLIBC_PRIVATE): Removed.
 	* sunrpc/rpc_thread.c (__rpc_thread_destroy): Put in special section
 	"__libc_thread_freeres_fn" and add to __libc_thread_subfreeres set.
 
diff --git a/include/resolv.h b/include/resolv.h
index f9635dd..9d7bb8b 100644
--- a/include/resolv.h
+++ b/include/resolv.h
@@ -45,6 +45,7 @@ extern void res_send_setrhook (res_send_rhook __hook);
 extern int res_ourserver_p (const res_state __statp,
 			    const struct sockaddr_in6 *__inp);
 libc_hidden_proto (__res_ninit)
+libc_hidden_proto (__res_nclose)
 libc_hidden_proto (__res_randomid)
 libc_hidden_proto (__res_state)
 
diff --git a/malloc/thread-freeres.c b/malloc/thread-freeres.c
index 75d3014..cc9db39 100644
--- a/malloc/thread-freeres.c
+++ b/malloc/thread-freeres.c
@@ -21,6 +21,7 @@
 #include <libc-internal.h>
 #include <set-hooks.h>
 
+#ifdef _LIBC_REENTRANT
 DEFINE_HOOK (__libc_thread_subfreeres, (void));
 
 void __attribute__ ((section ("__libc_thread_freeres_fn")))
@@ -28,3 +29,4 @@ __libc_thread_freeres (void)
 {
   RUN_HOOK (__libc_thread_subfreeres, ());
 }
+#endif
diff --git a/resolv/res_init.c b/resolv/res_init.c
index 764e571..459694f 100644
--- a/resolv/res_init.c
+++ b/resolv/res_init.c
@@ -528,6 +528,7 @@ res_randomid(void) {
 libc_hidden_def (__res_randomid)
 #endif
 
+
 /*
  * This routine is for closing the socket if a virtual circuit is used and
  * the program wants to close it.  This provides support for endhostent()
@@ -556,3 +557,26 @@ res_nclose(res_state statp) {
 		}
 	statp->_u._ext.nsinit = 0;
 }
+#ifdef _LIBC
+libc_hidden_def (__res_nclose)
+#endif
+
+#ifdef _LIBC
+# ifdef _LIBC_REENTRANT
+/* This is called when a thread is exiting to free resources held in _res.  */
+static void __attribute__ ((section ("__libc_thread_freeres_fn")))
+res_thread_freeres (void)
+{
+  __res_nclose (&_res);		/* Close any VC sockets.  */
+
+  for (int ns = 0; ns < MAXNS; ns++)
+    if (_res._u._ext.nsaddrs[ns] != NULL)
+      {
+	free (_res._u._ext.nsaddrs[ns]);
+	_res._u._ext.nsaddrs[ns] = NULL;
+      }
+}
+text_set_element (__libc_thread_subfreeres, res_thread_freeres);
+text_set_element (__libc_subfreeres, res_thread_freeres);
+# endif
+#endif
diff --git a/sunrpc/rpc_thread.c b/sunrpc/rpc_thread.c
index 9a3d4db..fbc1cf7 100644
--- a/sunrpc/rpc_thread.c
+++ b/sunrpc/rpc_thread.c
@@ -30,9 +30,13 @@ __rpc_thread_destroy (void)
 		free (tvp->authdes_cache_s);
 		free (tvp->authdes_lru_s);
 		free (tvp);
+		__libc_tsd_set (RPC_VARS, NULL);
 	}
 }
+#ifdef _LIBC_REENTRANT
 text_set_element (__libc_thread_subfreeres, __rpc_thread_destroy);
+#endif
+text_set_element (__libc_subfreeres, __rpc_thread_destroy);
 
 
 /*
-- 
2.7.4