Y2038: add function __ntp_gettime_t64

2 files changed, 26 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions
index 336c13b57d..59b8964b7c 100644
--- a/sysdeps/unix/sysv/linux/Versions
+++ b/sysdeps/unix/sysv/linux/Versions
@@ -170,6 +170,7 @@ libc {
     memfd_create;
     mlock2;
     pkey_alloc; pkey_free; pkey_set; pkey_get; pkey_mprotect;
+    __ntp_gettime_t64;
   }
   GLIBC_PRIVATE {
     # functions used in other libraries
diff --git a/sysdeps/unix/sysv/linux/ntp_gettime.c b/sysdeps/unix/sysv/linux/ntp_gettime.c
index 18650da94c..2b7dc7c98e 100644
--- a/sysdeps/unix/sysv/linux/ntp_gettime.c
+++ b/sysdeps/unix/sysv/linux/ntp_gettime.c
@@ -18,6 +18,7 @@
 #define ntp_gettime ntp_gettime_redirect
 
 #include <sys/timex.h>
+#include <include/time.h>
 
 #undef ntp_gettime
 
@@ -39,3 +40,27 @@ ntp_gettime (struct ntptimeval *ntv)
   ntv->esterror = tntx.esterror;
   return result;
 }
+
+/* The 64-bit-time version */
+
+extern int __y2038_linux_support;
+
+int
+__ntp_gettime_t64 (struct __ntptimeval_t64 *ntv)
+{
+  struct timex tntx;
+  int result;
+
+  if (__y2038_linux_support)
+    {
+      // TODO: use 64-bit syscall if possible
+    }
+
+  tntx.modes = 0;
+  result = __adjtimex (&tntx);
+  ntv->time.tv_sec = tntx.time.tv_sec;
+  ntv->time.tv_usec = tntx.time.tv_usec;
+  ntv->maxerror = tntx.maxerror;
+  ntv->esterror = tntx.esterror;
+  return result;
+}