[Winpt-commits] r316 - trunk/Generic

[scm-commit@wald.intevation.org]

Author: twoaday
Date: 2007-05-25 16:50:43 +0200 (Fri, 25 May 2007)
New Revision: 316

Modified:
   trunk/Generic/StringBuffer.cpp
   trunk/Generic/StringBuffer.h
Log:


Modified: trunk/Generic/StringBuffer.cpp
===================================================================
--- trunk/Generic/StringBuffer.cpp	2007-05-25 14:45:06 UTC (rev 315)
+++ trunk/Generic/StringBuffer.cpp	2007-05-25 14:50:43 UTC (rev 316)
@@ -83,7 +83,20 @@
     return private_contents;
 }
 
+
+/* Overwrite buffer contents in a safe manner. */
+void StringBuffer::wipeContents (void)
+{
+    volatile char *ptr = (volatile char*)private_contents;
+    int len = getSize ();
     
+    while (len-- > 0) {
+	*ptr = '\0';
+	*ptr++;
+    }
+}
+
+    
 /* Return the size of the underlying string. */    
 int StringBuffer::getSize (void)
 {

Modified: trunk/Generic/StringBuffer.h
===================================================================
--- trunk/Generic/StringBuffer.h	2007-05-25 14:45:06 UTC (rev 315)
+++ trunk/Generic/StringBuffer.h	2007-05-25 14:50:43 UTC (rev 316)
@@ -34,6 +34,9 @@
     /* Destructor which fres the used memory. */
     ~StringBuffer ();
 
+    /* Overwrite buffer contents in a safe manner. */
+    void wipeContents (void);
+
     /* Return a constant pointer to the 'char*' data of the buffer. */
     const char *getBuffer (void);