From 94a2182c95cc95646ad582616d335bce62152c86 Mon Sep 17 00:00:00 2001
From: Derek Jones <derek.jones@ellislab.com>
Date: Thu, 8 May 2008 15:00:28 +0000
Subject: added symbolic_permissions() and octal_permissions() to the File
 helper

---
 system/helpers/file_helper.php | 88 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)

(limited to 'system/helpers')

diff --git a/system/helpers/file_helper.php b/system/helpers/file_helper.php
index 21ed5ff97..bdde2d55d 100644
--- a/system/helpers/file_helper.php
+++ b/system/helpers/file_helper.php
@@ -368,4 +368,92 @@ if (! function_exists('get_mime_by_extension'))
 	}
 }
 
+// --------------------------------------------------------------------
+
+/**
+ * Symbolic Permissions
+ *
+ * Takes a numeric value representing a file's permissions and returns
+ * standard symbolic notation representing that value
+ *
+ * @access	public
+ * @param	int
+ * @return	string
+ */	
+if (! function_exists('symbolic_permissions'))
+{
+	function symbolic_permissions($perms)
+	{	
+		if (($perms & 0xC000) == 0xC000)
+		{
+			$symbolic = 's'; // Socket
+		}
+		elseif (($perms & 0xA000) == 0xA000)
+		{
+			$symbolic = 'l'; // Symbolic Link
+		}
+		elseif (($perms & 0x8000) == 0x8000)
+		{
+			$symbolic = '-'; // Regular
+		}
+		elseif (($perms & 0x6000) == 0x6000)
+		{
+			$symbolic = 'b'; // Block special
+		}
+		elseif (($perms & 0x4000) == 0x4000)
+		{
+			$symbolic = 'd'; // Directory
+		}
+		elseif (($perms & 0x2000) == 0x2000)
+		{
+			$symbolic = 'c'; // Character special
+		}
+		elseif (($perms & 0x1000) == 0x1000)
+		{
+			$symbolic = 'p'; // FIFO pipe
+		}
+		else
+		{
+			$symbolic = 'u'; // Unknown
+		}
+
+		// Owner
+		$symbolic .= (($perms & 0x0100) ? 'r' : '-');
+		$symbolic .= (($perms & 0x0080) ? 'w' : '-');
+		$symbolic .= (($perms & 0x0040) ? (($perms & 0x0800) ? 's' : 'x' ) : (($perms & 0x0800) ? 'S' : '-'));
+
+		// Group
+		$symbolic .= (($perms & 0x0020) ? 'r' : '-');
+		$symbolic .= (($perms & 0x0010) ? 'w' : '-');
+		$symbolic .= (($perms & 0x0008) ? (($perms & 0x0400) ? 's' : 'x' ) : (($perms & 0x0400) ? 'S' : '-'));
+
+		// World
+		$symbolic .= (($perms & 0x0004) ? 'r' : '-');
+		$symbolic .= (($perms & 0x0002) ? 'w' : '-');
+		$symbolic .= (($perms & 0x0001) ? (($perms & 0x0200) ? 't' : 'x' ) : (($perms & 0x0200) ? 'T' : '-'));
+
+		return $symbolic;		
+	}
+}
+
+// --------------------------------------------------------------------
+
+/**
+ * Octal Permissions
+ *
+ * Takes a numeric value representing a file's permissions and returns
+ * a three character string representing the file's octal permissions
+ *
+ * @access	public
+ * @param	int
+ * @return	string
+ */	
+if (! function_exists('octal_permissions'))
+{
+	function octal_permissions($perms)
+	{
+		return substr(sprintf('%o', $perms), -3);
+	}
+}
+
 ?>
\ No newline at end of file
-- 
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