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[3/5] Y2038: add function __gmtime64_r

Message ID 20181217220429.4599-4-albert.aribaud@3adev.fr
State New
Headers show

Commit Message

Albert ARIBAUD Dec. 17, 2018, 10:04 p.m. UTC
Tested with 'make check' on x86_64-linux-gnu and i686-linux.gnu.

	* include/time.h
	(__gmtime64_r): Add.
	* time/gmtime.c
	(__gmtime64_r): Add.
	[__TIMESIZE != 64] (__gmtime): Turn into a wrapper.
---
 include/time.h |  7 +++++++
 time/gmtime.c  | 15 ++++++++++++++-
 2 files changed, 21 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/include/time.h b/include/time.h
index 553bf74828..80543e3673 100644
--- a/include/time.h
+++ b/include/time.h
@@ -82,6 +82,13 @@  libc_hidden_proto (__gmtime_r)
 # define __gmtime64 gmtime
 #endif
 
+#if __TIMESIZE == 64
+# define __gmtime64_r __gmtime_r
+#else
+extern struct tm *__gmtime64_r (const __time64_t *__restrict __timer,
+				struct tm *__restrict __tp);
+#endif
+
 /* Compute the `struct tm' representation of T,
    offset OFFSET seconds east of UTC,
    and store year, yday, mon, mday, wday, hour, min, sec into *TP.
diff --git a/time/gmtime.c b/time/gmtime.c
index 67fdc89296..0b454d4b2b 100644
--- a/time/gmtime.c
+++ b/time/gmtime.c
@@ -21,11 +21,24 @@ 
 /* Return the `struct tm' representation of *T in UTC,
    using *TP to store the result.  */
 struct tm *
-__gmtime_r (const time_t *t, struct tm *tp)
+__gmtime64_r (const __time64_t *t, struct tm *tp)
 {
   return __tz_convert (*t, 0, tp);
 }
 
+/* Provide a 32-bit variant if needed */
+
+#if __TIMESIZE != 64
+
+struct tm *
+__gmtime_r (const time_t *t, struct tm *tp)
+{
+  __time64_t t64 = *t;
+  return __gmtime64_r (&t64, 0, tp);
+}
+
+#endif
+
 libc_hidden_def (__gmtime_r)
 weak_alias (__gmtime_r, gmtime_r)