[[PATCH,RFC,2] 24/63] Y2038: add function __futimes64
Commit Message
---
misc/futimes.c | 9 ++++++
sysdeps/unix/sysv/linux/futimes.c | 59 +++++++++++++++++++++++++++++++++++++++
time/Versions | 1 +
3 files changed, 69 insertions(+)
@@ -30,3 +30,12 @@ __futimes (int fd, const struct timeval tvp[2])
weak_alias (__futimes, futimes)
stub_warning (futimes)
+
+int
+__futimes64 (int fd, const struct __timeval64 tvp[2])
+{
+ __set_errno (ENOSYS);
+ return -1;
+}
+
+stub_warning (__futimes64)
@@ -49,3 +49,62 @@ __futimes (int fd, const struct timeval tvp[2])
return INLINE_SYSCALL (utimensat, 4, fd, NULL, tvp ? &ts : NULL, 0);
}
weak_alias (__futimes, futimes)
+
+/* 64-bit time version */
+
+extern int __y2038_linux_support;
+
+int
+__futimes64 (int fd, const struct __timeval64 tvp[2])
+{
+ struct timespec ts32[2], *ts32p = NULL;
+/* Only try and use this syscall if defined by kernel */
+#ifdef __NR_utimensat64
+ /* The utimensat system call expects timespec not timeval. */
+ struct __timespec64 ts64[2], *ts64p = NULL;
+ int result;
+#endif
+
+/* Only try and use this syscall if defined by kernel */
+#ifdef __NR_utimensat64
+ if (__y2038_linux_support)
+ {
+ if (tvp != NULL)
+ {
+ if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000
+ || tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000)
+ return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+
+ ts64[0].tv_sec = tvp[0].tv_sec;
+ ts64[0].tv_nsec = tvp[0].tv_usec * 1000;
+ ts64[0].tv_pad = 0;
+ ts64[1].tv_sec = tvp[1].tv_sec;
+ ts64[1].tv_nsec = tvp[1].tv_usec * 1000;
+ ts64[1].tv_pad = 0;
+ ts64p = ts64;
+ }
+
+ result = INLINE_SYSCALL (utimensat64, 4, fd, NULL, ts64p, 0);
+ if (result == 0 || errno != ENOSYS)
+ return result;
+ }
+#endif
+
+ if (tvp != NULL)
+ {
+ if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000
+ || tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000)
+ return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+
+ if (tvp[0].tv_sec > INT_MAX || tvp[1].tv_sec > INT_MAX)
+ return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW);
+
+ ts32[0].tv_sec = tvp[0].tv_sec;
+ ts32[0].tv_nsec = tvp[0].tv_usec * 1000;
+ ts32[1].tv_sec = tvp[1].tv_sec;
+ ts32[1].tv_nsec = tvp[1].tv_usec * 1000;
+ ts32p = ts32;
+ }
+
+ return INLINE_SYSCALL (utimensat, 4, fd, NULL, ts32p, 0);
+}
@@ -82,5 +82,6 @@ libc {
__futimens64;
__utimensat64;
__sigtimedwait64;
+ __futimes64;
}
}