1 files changed, 78 insertions, 0 deletions
diff --git a/ext/calendar/cal_unix.c b/ext/calendar/cal_unix.c
new file mode 100644
index 0000000..c65b046
--- /dev/null
+++ b/ext/calendar/cal_unix.c
@@ -0,0 +1,78 @@
+/*
+   +----------------------------------------------------------------------+
+   | PHP Version 5                                                        |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 1997-2013 The PHP Group                                |
+   +----------------------------------------------------------------------+
+   | This source file is subject to version 3.01 of the PHP license,      |
+   | that is bundled with this package in the file LICENSE, and is        |
+   | available through the world-wide-web at the following url:           |
+   | http://www.php.net/license/3_01.txt                                  |
+   | If you did not receive a copy of the PHP license and are unable to   |
+   | obtain it through the world-wide-web, please send a note to          |
+   | license@php.net so we can mail you a copy immediately.               |
+   +----------------------------------------------------------------------+
+   | Authors: Shane Caraveo             <shane@caraveo.com>               | 
+   |          Colin Viebrock            <colin@easydns.com>               |
+   |          Hartmut Holzgraefe        <hholzgra@php.net>                |
+   +----------------------------------------------------------------------+
+ */
+/* $Id: */
+
+#include "php.h"
+#include "php_calendar.h"
+#include "sdncal.h"
+#include <time.h>
+
+/* {{{ proto int unixtojd([int timestamp])
+   Convert UNIX timestamp to Julian Day */
+PHP_FUNCTION(unixtojd)
+{
+	time_t ts = 0;
+	struct tm *ta, tmbuf;
+
+	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &ts) == FAILURE) {
+		return;
+	}	
+
+	if (!ts) {
+		ts = time(NULL);
+	} else if (ts < 0) {
+		RETURN_FALSE;
+	}
+
+	if (!(ta = php_localtime_r(&ts, &tmbuf))) {
+		RETURN_FALSE;
+	}
+
+	RETURN_LONG(GregorianToSdn(ta->tm_year+1900, ta->tm_mon+1, ta->tm_mday));
+}
+/* }}} */
+
+/* {{{ proto int jdtounix(int jday)
+   Convert Julian Day to UNIX timestamp */
+PHP_FUNCTION(jdtounix)
+{
+	long uday;
+
+	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &uday) == FAILURE) {
+		return;
+	}	
+	uday -= 2440588 /* J.D. of 1.1.1970 */;
+
+	if (uday < 0 || uday > 24755) { /* before beginning of unix epoch or behind end of unix epoch */ 
+		RETURN_FALSE;
+	}
+
+	RETURN_LONG(uday * 24 * 3600);
+}
+/* }}} */
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: sw=4 ts=4 fdm=marker
+ * vim<600: sw=4 ts=4
+ */