1 files changed, 52 insertions, 0 deletions
diff --git a/socket/tst-sockopt.c b/socket/tst-sockopt.c
new file mode 100644
index 0000000000..f3ce0bc3a4
--- /dev/null
+++ b/socket/tst-sockopt.c
@@ -0,0 +1,52 @@
+/* Smoke test for socket options.
+   Copyright (C) 2021 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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <support/xsocket.h>
+#include <support/xunistd.h>
+#include <support/check.h>
+#include <netinet/in.h>
+
+static int
+do_test (void)
+{
+  int fd = xsocket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
+
+  struct linger value = { -1, -1 };
+  socklen_t optlen = sizeof (value);
+  TEST_COMPARE (getsockopt (fd, SOL_SOCKET, SO_LINGER, &value, &optlen), 0);
+  TEST_COMPARE (optlen, sizeof (value));
+  TEST_COMPARE (value.l_onoff, 0);
+  TEST_COMPARE (value.l_linger, 0);
+
+  value.l_onoff = 1;
+  value.l_linger = 30;
+  TEST_COMPARE (setsockopt (fd, SOL_SOCKET, SO_LINGER, &value, sizeof (value)),
+                0);
+
+  value.l_onoff = -1;
+  value.l_linger = -1;
+  TEST_COMPARE (getsockopt (fd, SOL_SOCKET, SO_LINGER, &value, &optlen), 0);
+  TEST_COMPARE (optlen, sizeof (value));
+  TEST_COMPARE (value.l_onoff, 1);
+  TEST_COMPARE (value.l_linger, 30);
+
+  xclose (fd);
+  return 0;
+}
+
+#include <support/test-driver.c>