From 50673e789f5528e0ea422e39d60aadb869e3dc1f Mon Sep 17 00:00:00 2001
From: "Albert ARIBAUD (3ADEV)" <albert.aribaud@3adev.fr>
Date: Fri, 8 Sep 2017 00:41:39 +0200
Subject: [PATCH] Y2038: add function __futimens64

---
 io/futimens.c                      |  8 +++++
 sysdeps/unix/sysv/linux/futimens.c | 49 +++++++++++++++++++++++++++++-
 time/Versions                      |  1 +
 3 files changed, 57 insertions(+), 1 deletion(-)

diff --git a/io/futimens.c b/io/futimens.c
index fb170ffc3c8..2e9648a16ec 100644
--- a/io/futimens.c
+++ b/io/futimens.c
@@ -32,3 +32,11 @@ futimens (int fd, const struct timespec tsp[2])
   return -1;
 }
 stub_warning (futimens)
+
+int
+__futimens64 (int fd, const struct __timespec64 tsp[2])
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (__futimens64)
diff --git a/sysdeps/unix/sysv/linux/futimens.c b/sysdeps/unix/sysv/linux/futimens.c
index bc7fe543317..5de651d2cd1 100644
--- a/sysdeps/unix/sysv/linux/futimens.c
+++ b/sysdeps/unix/sysv/linux/futimens.c
@@ -21,7 +21,7 @@
 #include <string.h>
 #include <time.h>
 #include <sysdep.h>
-
+#include <y2038-support.h>
 
 /* Change the access time of the file associated with FD to TSP[0] and
    the modification time of FILE to TSP[1].
@@ -36,3 +36,50 @@ futimens (int fd, const struct timespec tsp[2])
   /* Avoid implicit array coercion in syscall macros.  */
   return INLINE_SYSCALL (utimensat, 4, fd, NULL, &tsp[0], 0);
 }
+
+/* 64-bit time version */
+
+int
+__futimens64 (int fd, const struct __timespec64 tsp[2])
+{
+  struct timespec ts32[2];
+/* Only try and use this syscall if defined by kernel */
+#ifdef __NR_utimesat_time64
+  struct __timespec64 ts64[2];
+  int res;
+#endif
+
+  if (fd < 0)
+    return INLINE_SYSCALL_ERROR_RETURN_VALUE (EBADF);
+
+/* Only try and use this syscall if defined by kernel */
+#ifdef __NR_utimesat_time64
+  if (__y2038_linux_support > 0)
+    {
+      ts64[0].tv_sec = tsp[0].tv_sec;
+      ts64[0].tv_nsec = tsp[0].tv_nsec;
+      ts64[0].tv_pad = 0;
+      ts64[1].tv_sec = tsp[1].tv_sec;
+      ts64[1].tv_nsec = tsp[1].tv_nsec;
+      ts64[1].tv_pad = 0;
+      res = INLINE_SYSCALL (utimensat_time64, 4, fd, NULL, &ts64[0], 0);
+      if (res == 0 || errno != ENOSYS)
+        return res;
+      __y2038_linux_support = -1;
+    }
+#endif
+
+  if (! timespec64_to_timespec(&tsp[0], &ts32[0]))
+    {
+      __set_errno(EOVERFLOW);
+      return -1;
+    }
+
+  if (! timespec64_to_timespec(&tsp[1], &ts32[1]))
+    {
+      __set_errno(EOVERFLOW);
+      return -1;
+    }
+
+  return INLINE_SYSCALL (utimensat, 4, fd, NULL, &ts32[0], 0);
+}
diff --git a/time/Versions b/time/Versions
index c5f63364c0a..5614729fc57 100644
--- a/time/Versions
+++ b/time/Versions
@@ -76,5 +76,6 @@ libc {
     __clock_nanosleep64;
     __timespec_get64;
     __utimensat_time64;
+    __futimens64;
   }
 }
-- 
2.47.2