reduce chgrp race, allow empty it::cat()

1 files changed, 8 insertions, 6 deletions

diff --git a/it.class b/it.class
index 9525e86..d18ca4f 100644
--- a/it.class
+++ b/it.class
@@ -82,12 +82,10 @@ static function log($name /* ... */)
 	$basefn = substr($name, 0, 1) == "/" ? $name : $GLOBALS['ULTRAHOME'] . "/log/$name";
 	$fullfn = $basefn . "-" . date('Ymd');
 
-	$existed = file_exists($fullfn);
-
-	if (substr($fullfn, 0, 1) == "/" && ($fh = fopen($fullfn, "a")))
+	if (substr($fullfn, 0, 1) == "/")
 	{
-		fputs($fh, $line);
-		fclose($fh);
+		$existed = file_exists($fullfn);
+		file_put_contents($fullfn, $line, FILE_APPEND);
 
 		if (!$existed)
 		{
@@ -817,7 +815,11 @@ static function file_put($filename, $data, $p = array())
 	return ($out = fopen($filename == "-" ? "php://stdout" : $filename, "w")) && (fputs($out, $data) === strlen($data)) && fclose($out);
 }
 
-function cat($fn)
+/**
+ * Create an it_pipe from a file
+ * @param $fn filename to read. if omitted, stdin is used.
+ */
+function cat($fn = null)
 {
 	return new it_pipe(array('fn' => $fn));
 }