Y2038: add function __settimeofday64

Implementing a 64-bit settimeofday requires adding a new
file to build under time/ and we cannot name that new file
'settimeofday.c' or it will break the 32-bit settimeofday
file symbol, so we call it 'settimeofday64.c'.

1 files changed, 39 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/settimeofday64.c b/sysdeps/unix/sysv/linux/settimeofday64.c
new file mode 100644
index 0000000..1a9fa23
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/settimeofday64.c
@@ -0,0 +1,39 @@
+/* Set the current time of day and timezone information.
+
+   Copyright (C) 2018 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/>.  */
+
+#include <sysdep.h>
+#include <errno.h>
+#include <sys/time.h>
+
+int __settimeofday64(const struct __timeval64 *tv,
+                       const struct timezone *tz)
+{
+  struct timeval tv32;
+
+  if (tv && tv->tv_sec > INT_MAX)
+    {
+      __set_errno(EOVERFLOW);
+      return -1;
+    }
+
+  tv32.tv_sec = tv->tv_sec;
+  tv32.tv_usec = tv->tv_usec;
+
+  return __settimeofday(&tv32, tz);
+}