resolv: Remove unsupported hook functions from the API [BZ #20016]

1 files changed, 56 insertions, 0 deletions

diff --git a/resolv/compat-hooks.c b/resolv/compat-hooks.c
new file mode 100644
index 0000000000..5e38260e9e
--- /dev/null
+++ b/resolv/compat-hooks.c
@@ -0,0 +1,56 @@
+/* Compatibility functions for obsolete libresolv hooks.
+   Copyright (C) 1999-2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/*
+ * Copyright (c) 1995-1999 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#include <resolv.h>
+
+#include <shlib-compat.h>
+
+#if SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_25)
+
+void
+attribute_compat_text_section
+res_send_setqhook(void *hook) {
+  _res.__glibc_unused_qhook = hook;
+}
+compat_symbol (libresolv, res_send_setqhook, res_send_setqhook, GLIBC_2_0);
+
+void
+attribute_compat_text_section
+res_send_setrhook(void *hook) {
+  _res.__glibc_unused_rhook = hook;
+}
+compat_symbol (libresolv, res_send_setrhook, res_send_setrhook, GLIBC_2_0);
+
+#endif