Fix phpGH-14732: date_sun_info() fails for non-finite values

`timelib_astro_rise_set_altitude()` is not prepared to deal with non-
finite values (`nan`, `inf` and `-inf`) for `lon` and `lat`; instead
these trigger undefined behavior.  Thus we catch non-finite values
before even calling that timelib function; for `date_sun_info()` we
trigger `ValueError`s; for `date_sunrise()` and `date_sunset()` we
silently return `false`, since these functions will be sunsetted
anyway.

Closes phpGH-16497.

Author: cmb69

NEWS

@@ -28,6 +28,7 @@ PHP                                                                        NEWS
   . Fixed bug GH-16454 (Unhandled INF in date_sunset() with tiny $utcOffset).
     (cmb)
   . Fixed bug GH-16037 (Assertion failure in ext/date/php_date.c). (Derick)
+  . Fixed bug GH-14732 (date_sun_info() fails for non-finite values). (cmb)
 
 - DBA:
   . Fixed bug GH-16390 (dba_open() can segfault for "pathless" streams). (cmb)

ext/date/php_date.c

@@ -5111,6 +5111,10 @@ static void php_do_date_sunrise_sunset(INTERNAL_FUNCTION_PARAMETERS, bool calc_s
 	}
 	altitude = 90 - zenith;
 
+	if (!zend_finite(latitude) || !zend_finite(longitude)) {
+		RETURN_FALSE;
+	}
+
 	/* Initialize time struct */
 	tzi = get_timezone_info();
 	if (!tzi) {
@@ -5188,6 +5192,15 @@ PHP_FUNCTION(date_sun_info)
 		Z_PARAM_DOUBLE(longitude)
 	ZEND_PARSE_PARAMETERS_END();
 
+	if (!zend_finite(latitude)) {
+		zend_argument_value_error(2, "must be finite");
+		RETURN_THROWS();
+	}
+	if (!zend_finite(longitude)) {
+		zend_argument_value_error(3, "must be finite");
+		RETURN_THROWS();
+	}
+
 	/* Initialize time struct */
 	tzi = get_timezone_info();
 	if (!tzi) {

ext/date/tests/gh14732.phpt

@@ -0,0 +1,38 @@
+--TEST--
+GH-14732 (date_sun_info() fails for non-finite values)
+--FILE--
+<?php
+try {
+    date_sun_info(1, NAN, 1);
+} catch (ValueError $ex) {
+    echo $ex->getMessage(), "\n";
+}
+try {
+    date_sun_info(1, -INF, 1);
+} catch (ValueError $ex) {
+    echo $ex->getMessage(), "\n";
+}
+try {
+    date_sun_info(1, 1, NAN);
+} catch (ValueError $ex) {
+    echo $ex->getMessage(), "\n";
+}
+try {
+    date_sun_info(1, 1, INF);
+} catch (ValueError $ex) {
+    echo $ex->getMessage(), "\n";
+}
+var_dump(date_sunset(1, SUNFUNCS_RET_STRING, NAN, 1));
+var_dump(date_sunrise(1, SUNFUNCS_RET_STRING, 1, NAN));
+?>
+--EXPECTF--
+date_sun_info(): Argument #2 ($latitude) must be finite
+date_sun_info(): Argument #2 ($latitude) must be finite
+date_sun_info(): Argument #3 ($longitude) must be finite
+date_sun_info(): Argument #3 ($longitude) must be finite
+
+Deprecated: Function date_sunset() is deprecated in %s on line %d
+bool(false)
+
+Deprecated: Function date_sunrise() is deprecated in %s on line %d
+bool(false)