Fixed bug in new stream_get_line() when using NUL as a delimiter.

This is the issue Derick spotted a few days ago..

ext/standard/tests/streams/stream_get_line_NUL_delimiter.phpt

@@ -0,0 +1,27 @@
+--TEST--
+Bug #60455: stream_get_line and \0 as a delimiter
+--FILE--
+<?php
+class TestStream {
+	private $s = 0;
+	function stream_open($path, $mode, $options, &$opened_path) {
+	        return true;
+	}
+	function stream_read($count) {
+		if ($this->s++ == 0)
+			return "a\0";
+
+		return "";
+	}
+	function stream_eof() {
+		return $this->s >= 2;
+	}
+
+}
+
+stream_wrapper_register("test", "TestStream");
+
+$f = fopen("test://", "r");
+var_dump(stream_get_line($f, 100, "\0"));
+--EXPECT--
+string(1) "a"

main/streams/streams.c

@@ -957,8 +957,8 @@ PHPAPI char *php_stream_get_record(php_stream *stream, size_t maxlen, size_t *re
 	char	*ret_buf,				/* returned buffer */
 			*found_delim = NULL;
 	size_t	buffered_len,
-			tent_ret_len;			/* tentative returned length*/
-	int		has_delim	 = delim_len > 0 && delim[0] != '\0';
+			tent_ret_len;			/* tentative returned length */
+	int		has_delim	 = delim_len > 0;
 
 	if (maxlen == 0) {
 		return NULL;