r15953: our timegm() replacement still doesn't work, so grab the one from

Heimdal which does work. This should fix most of the rest of the
failures on solaris
(This used to be commit acfaa98b5ea686feb81350baf09b3f4480f96edc)

4 files changed, 77 insertions, 13 deletions

diff --git a/source4/lib/replace/config.mk b/source4/lib/replace/config.mk
index 4fd5402f61..7ec1eaffa2 100644
--- a/source4/lib/replace/config.mk
+++ b/source4/lib/replace/config.mk
@@ -11,6 +11,7 @@ OBJ_FILES = \
 [SUBSYSTEM::LIBREPLACE]
 OBJ_FILES = replace.o \
 		snprintf.o \
+		timegm.o \
 		dlfcn.o \
 		getpass.o
 PUBLIC_DEPENDENCIES = REPLACE_READDIR
diff --git a/source4/lib/replace/replace.c b/source4/lib/replace/replace.c
index 38a3d517df..6f51bd2e99 100644
--- a/source4/lib/replace/replace.c
+++ b/source4/lib/replace/replace.c
@@ -368,19 +368,6 @@ duplicate a string
 #endif /* HAVE_VSYSLOG */
 
 
-#ifndef HAVE_TIMEGM
-/*
-  yes, I know this looks insane, but its really needed. The function in the 
-  Linux timegm() manpage does not work on solaris.
-*/
- time_t timegm(struct tm *tm) 
-{
-	time_t t = mktime(tm);
-	t -= mktime(gmtime(&t)) - (int)mktime(localtime(&t));
-	return t;
-}
-#endif
-
 #ifndef HAVE_SETENV
  int setenv(const char *name, const char *value, int overwrite) 
 {
diff --git a/source4/lib/replace/replace.h b/source4/lib/replace/replace.h
index 7a1c4b5ce7..f9d67fb2ec 100644
--- a/source4/lib/replace/replace.h
+++ b/source4/lib/replace/replace.h
@@ -112,6 +112,10 @@ int vasprintf(char **ptr, const char *format, va_list ap);
 #define bzero(a,b) memset((a),'\0',(b))
 #endif
 
+#ifndef HAVE_TIMEGM
+time_t timegm(struct tm *tm);
+#endif
+
 #ifndef PRINTF_ATTRIBUTE
 #if __GNUC__ >= 3
 /** Use gcc attribute to check printf fns.  a1 is the 1-based index of
diff --git a/source4/lib/replace/timegm.c b/source4/lib/replace/timegm.c
new file mode 100644
index 0000000000..f2741e0eff
--- /dev/null
+++ b/source4/lib/replace/timegm.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 1997 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden). 
+ * All rights reserved. 
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions 
+ * are met: 
+ *
+ * 1. Redistributions of source code must retain the above copyright 
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright 
+ *    notice, this list of conditions and the following disclaimer in the 
+ *    documentation and/or other materials provided with the distribution. 
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+ * SUCH DAMAGE. 
+ */
+
+/*
+  adapted for Samba4 by Andrew Tridgell
+*/
+
+#include "includes.h"
+#include "system/time.h"
+
+#ifndef HAVE_TIMEGM
+
+static int is_leap(unsigned y)
+{
+	y += 1900;
+	return (y % 4) == 0 && ((y % 100) != 0 || (y % 400) == 0);
+}
+
+time_t timegm(struct tm *tm)
+{
+	static const unsigned ndays[2][12] ={
+		{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
+		{31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}};
+	time_t res = 0;
+	unsigned i;
+	
+	for (i = 70; i < tm->tm_year; ++i)
+		res += is_leap(i) ? 366 : 365;
+	
+	for (i = 0; i < tm->tm_mon; ++i)
+		res += ndays[is_leap(tm->tm_year)][i];
+	res += tm->tm_mday - 1;
+	res *= 24;
+	res += tm->tm_hour;
+	res *= 60;
+	res += tm->tm_min;
+	res *= 60;
+	res += tm->tm_sec;
+	return res;
+}
+
+#endif /* HAVE_TIMEGM */