socket: Add time64 alias for getsockopt

Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

4 files changed, 76 insertions, 1 deletions

diff --git a/socket/Makefile b/socket/Makefile
index 27ffe44c05..3759576010 100644
--- a/socket/Makefile
+++ b/socket/Makefile
@@ -31,7 +31,14 @@ routines := accept bind connect getpeername getsockname getsockopt	\
 	    setsockopt shutdown socket socketpair isfdtype opensock	\
 	    sockatmark accept4 recvmmsg sendmmsg
 
-tests := tst-accept4
+tests := \
+  tst-accept4 \
+  tst-sockopt \
+  # tests
+
+tests-time64 := \
+  tst-sockopt-time64 \
+  # tests
 
 aux	 := sa_len
 
diff --git a/socket/sys/socket.h b/socket/sys/socket.h
index e779dc837f..b37c87e7df 100644
--- a/socket/sys/socket.h
+++ b/socket/sys/socket.h
@@ -251,9 +251,24 @@ extern int __REDIRECT (recvmmsg, (int __fd, struct mmsghdr *__vmessages,
 /* Put the current value for socket FD's option OPTNAME at protocol level LEVEL
    into OPTVAL (which is *OPTLEN bytes long), and set *OPTLEN to the value's
    actual length.  Returns 0 on success, -1 for errors.  */
+#ifndef __USE_TIME_BITS64
 extern int getsockopt (int __fd, int __level, int __optname,
 		       void *__restrict __optval,
 		       socklen_t *__restrict __optlen) __THROW;
+#else
+# ifdef __REDIRECT
+extern int __REDIRECT_NTH (getsockopt,
+			   (int __fd, int __level, int __optname,
+			    void *__restrict __optval,
+			    socklen_t *__restrict __optlen),
+			   __getsockopt64);
+# else
+extern int __getsockopt64 (int __fd, int __level, int __optname,
+			   void *__restrict __optval,
+			   socklen_t *__restrict __optlen) __THROW;
+#  define getsockopt __getsockopt64
+# endif
+#endif
 
 /* Set socket FD's option OPTNAME at protocol level LEVEL
    to *OPTVAL (which is OPTLEN bytes long).
diff --git a/socket/tst-sockopt-time64.c b/socket/tst-sockopt-time64.c
new file mode 100644
index 0000000000..f1df48de73
--- /dev/null
+++ b/socket/tst-sockopt-time64.c
@@ -0,0 +1 @@
+#include "tst-sockopt.c"
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>