Fix threaded use of res_ functions.

Commit aab4df0fb51660300559f5f29290709db2f7bfee says that the line with
after res_init() function. Commit
7f74de5d4d6d10baafab4b37bb3d472f5c5f0e8c moves the res_init()
function below the line with #undef _res.

This commit moves res_init() back above #undef _res.

Signed-off-by: Kenneth Soerensen <kenneth.sorensen@spectralink.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc/inet/resolv.c

@@ -3530,6 +3530,61 @@ __res_vinit(res_state rp, int preinit)
 	return 0;
 }
 
+static unsigned int
+res_randomid(void)
+{
+	return 0xffff & getpid();
+}
+
+/* Our res_init never fails (always returns 0) */
+int
+res_init(void)
+{
+	/*
+	 * These three fields used to be statically initialized.  This made
+	 * it hard to use this code in a shared library.  It is necessary,
+	 * now that we're doing dynamic initialization here, that we preserve
+	 * the old semantics: if an application modifies one of these three
+	 * fields of _res before res_init() is called, res_init() will not
+	 * alter them.  Of course, if an application is setting them to
+	 * _zero_ before calling res_init(), hoping to override what used
+	 * to be the static default, we can't detect it and unexpected results
+	 * will follow.  Zero for any of these fields would make no sense,
+	 * so one can safely assume that the applications were already getting
+	 * unexpected results.
+	 *
+	 * _res.options is tricky since some apps were known to diddle the bits
+	 * before res_init() was first called. We can't replicate that semantic
+	 * with dynamic initialization (they may have turned bits off that are
+	 * set in RES_DEFAULT).  Our solution is to declare such applications
+	 * "broken".  They could fool us by setting RES_INIT but none do (yet).
+	 */
+
+	__UCLIBC_MUTEX_LOCK(__resolv_lock);
+
+	if (!_res.retrans)
+		_res.retrans = RES_TIMEOUT;
+	if (!_res.retry)
+		_res.retry = 4;
+	if (!(_res.options & RES_INIT))
+		_res.options = RES_DEFAULT;
+
+	/*
+	 * This one used to initialize implicitly to zero, so unless the app
+	 * has set it to something in particular, we can randomize it now.
+	 */
+	if (!_res.id)
+		_res.id = res_randomid();
+
+	__UCLIBC_MUTEX_UNLOCK(__resolv_lock);
+
+	__res_vinit(&_res, 1);
+	__res_sync = res_sync_func;
+
+	return 0;
+}
+libc_hidden_def(res_init)
+
 static void
 __res_iclose(res_state statp)
 {
@@ -3600,61 +3655,6 @@ struct __res_state *__resp = &_res;
 # endif
 #endif /* !__UCLIBC_HAS_THREADS__ */
 
-static unsigned int
-res_randomid(void)
-{
-	return 0xffff & getpid();
-}
-
-/* Our res_init never fails (always returns 0) */
-int
-res_init(void)
-{
-	/*
-	 * These three fields used to be statically initialized.  This made
-	 * it hard to use this code in a shared library.  It is necessary,
-	 * now that we're doing dynamic initialization here, that we preserve
-	 * the old semantics: if an application modifies one of these three
-	 * fields of _res before res_init() is called, res_init() will not
-	 * alter them.  Of course, if an application is setting them to
-	 * _zero_ before calling res_init(), hoping to override what used
-	 * to be the static default, we can't detect it and unexpected results
-	 * will follow.  Zero for any of these fields would make no sense,
-	 * so one can safely assume that the applications were already getting
-	 * unexpected results.
-	 *
-	 * _res.options is tricky since some apps were known to diddle the bits
-	 * before res_init() was first called. We can't replicate that semantic
-	 * with dynamic initialization (they may have turned bits off that are
-	 * set in RES_DEFAULT).  Our solution is to declare such applications
-	 * "broken".  They could fool us by setting RES_INIT but none do (yet).
-	 */
-
-	__UCLIBC_MUTEX_LOCK(__resolv_lock);
-
-	if (!_res.retrans)
-		_res.retrans = RES_TIMEOUT;
-	if (!_res.retry)
-		_res.retry = 4;
-	if (!(_res.options & RES_INIT))
-		_res.options = RES_DEFAULT;
-
-	/*
-	 * This one used to initialize implicitly to zero, so unless the app
-	 * has set it to something in particular, we can randomize it now.
-	 */
-	if (!_res.id)
-		_res.id = res_randomid();
-
-	__UCLIBC_MUTEX_UNLOCK(__resolv_lock);
-
-	__res_vinit(&_res, 1);
-	__res_sync = res_sync_func;
-
-	return 0;
-}
-libc_hidden_def(res_init)
-
 /*
  * Set up default settings.  If the configuration file exist, the values
  * there will have precedence.  Otherwise, the server address is set to