From: Ralph Boehme <slow@samba.org>
Date: Wed, 4 Dec 2019 11:11:05 +0000 (+0100)
Subject: lib: add full_timespec_to_nt_time()
X-Git-Tag: ldb-2.1.0~430
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b5dc6aa7202957d6a68eb27150796ef669e81369;p=thirdparty%2Fsamba.git

lib: add full_timespec_to_nt_time()

BUG: https://bugzilla.samba.org/show_bug.cgi?id=7771

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
---

diff --git a/lib/util/time.c b/lib/util/time.c
index a1a1f666506..67308444dae 100644
--- a/lib/util/time.c
+++ b/lib/util/time.c
@@ -1014,3 +1014,28 @@ struct timespec make_omit_timespec(void)
 {
 	return (struct timespec){.tv_nsec = SAMBA_UTIME_OMIT};
 }
+
+/**
+ * Like unix_timespec_to_nt_time() but without the special casing of tv_sec=0
+ * and -1. Also dealing with SAMBA_UTIME_OMIT.
+ **/
+NTTIME full_timespec_to_nt_time(const struct timespec *ts)
+{
+	uint64_t d;
+
+	if (ts->tv_sec == TIME_T_MAX) {
+		return 0x7fffffffffffffffLL;
+	}
+
+	if (is_omit_timespec(ts)) {
+		return 0;
+	}
+
+	d = ts->tv_sec;
+	d += TIME_FIXUP_CONSTANT_INT;
+	d *= 1000*1000*10;
+	/* d is now in 100ns units. */
+	d += (ts->tv_nsec / 100);
+
+	return d;
+}
diff --git a/lib/util/time.h b/lib/util/time.h
index 494b6f653ff..5c7b7b209ec 100644
--- a/lib/util/time.h
+++ b/lib/util/time.h
@@ -341,5 +341,6 @@ NTTIME unix_timespec_to_nt_time(struct timespec ts);
  */
 bool is_omit_timespec(const struct timespec *ts);
 struct timespec make_omit_timespec(void);
+NTTIME full_timespec_to_nt_time(const struct timespec *ts);
 
 #endif /* _SAMBA_TIME_H_ */