From c15c0f2a47caa61f0575a63d88d1481d34530643 Mon Sep 17 00:00:00 2001
From: Jeremy Allison <jra@samba.org>
Date: Fri, 18 May 2007 23:38:56 +0000
Subject: r23005: If we're running on a system where time_t is 8 bytes we have
 to take care to preserve the "special" values for Windows of 0x80000000 and
 0x7FFFFFFF when casting between time_t and uint32. Add conversion functions
 (and use them). Jeremy. (This used to be commit
 4e1a0b2549f7c11326deed2801de19564af0f16a)

---
 source3/lib/time.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'source3/lib/time.c')

diff --git a/source3/lib/time.c b/source3/lib/time.c
index e98f8232ab..ba158fe1ae 100644
--- a/source3/lib/time.c
+++ b/source3/lib/time.c
@@ -554,6 +554,37 @@ NTTIME timeval_to_nttime(const struct timeval *tv)
 		  ((TIME_FIXUP_CONSTANT_INT + (uint64_t)tv->tv_sec) * 1000000));
 }
 
+/**************************************************************
+ Handle conversions between time_t and uint32, taking care to
+ preserve the "special" values.
+**************************************************************/
+
+uint32 convert_time_t_to_uint32(time_t t)
+{
+#if (defined(SIZEOF_TIME_T) && (SIZEOF_TIME_T == 8))
+	/* time_t is 64-bit. */
+	if (t == 0x8000000000000000LL) {
+		return 0x80000000;
+	} else if (t == 0x7FFFFFFFFFFFFFFFLL) {
+		return 0x7FFFFFFF;
+	}
+#endif
+	return (uint32)t;
+}
+
+time_t convert_uint32_to_time_t(uint32 u)
+{
+#if (defined(SIZEOF_TIME_T) && (SIZEOF_TIME_T == 8))
+	/* time_t is 64-bit. */
+	if (u == 0x80000000) {
+		return (time_t)0x8000000000000000LL;
+	} else if (u == 0x7FFFFFFF) {
+		return (time_t)0x7FFFFFFFFFFFFFFFLL) {
+	}
+#endif
+	return (time_t)u;
+}
+
 /*******************************************************************
  Yield the difference between *A and *B, in seconds, ignoring leap seconds.
 ********************************************************************/
-- 
cgit