[[PATCH,RFC,2] 39/63] Y2038: add function __stime64
Commit Message
This implementation uses __settimeofday64.
Therefore, on a system where current time-of-day is 32 bits, this
implementation will fail for dates beyond Y2038.
---
sysdeps/unix/stime64.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
time/Makefile | 2 +-
time/Versions | 1 +
time/stime.c | 17 +++++++++++++++++
4 files changed, 66 insertions(+), 1 deletion(-)
create mode 100644 sysdeps/unix/stime64.c
new file mode 100644
@@ -0,0 +1,47 @@
+/* Set the system clock on a unix system
+
+ 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 <errno.h>
+#include <stddef.h> /* For NULL. */
+#include <sys/time.h>
+#include <time.h>
+
+/* Set the system clock to *WHEN. */
+
+int
+__stime64 (const __time64_t *when)
+{
+ struct __timeval64 tv;
+
+ if (when == NULL)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ if (*when > INT_MAX)
+ {
+ __set_errno (EOVERFLOW);
+ return -1;
+ }
+
+ tv.tv_sec = *when;
+ tv.tv_usec = 0;
+ return __settimeofday64 (&tv, (struct timezone *) 0);
+}
@@ -31,7 +31,7 @@ headers := time.h sys/time.h sys/timeb.h bits/time.h \
routines := offtime asctime clock ctime ctime_r difftime \
gmtime localtime mktime time \
- time64 \
+ time64 stime64 \
gettimeofday settimeofday adjtime tzset \
gettimeofday64 settimeofday64 \
tzfile getitimer setitimer \
@@ -87,5 +87,6 @@ libc {
__gettimeofday64;
__settimeofday64;
__time64;
+ __stime64;
}
}
@@ -35,3 +35,20 @@ stime (const time_t *when)
}
stub_warning (stime)
+
+/* 64-bit time version */
+
+int
+__stime64 (const __time64_t *when)
+{
+ if (when == NULL)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ __set_errno (ENOSYS);
+ return -1;
+}
+
+stub_warning (__stime64)