From 68c04d3d540722a7fc54d17d6c6571d77d6ff108 Mon Sep 17 00:00:00 2001
From: corvid <corvid@lavabit.com>
Date: Thu, 29 Sep 2011 15:59:46 +0000
Subject: password shredding

Justus had written a patch for this, but the list archive didn't want to
disgorge it, so I wrote one.
---
 dlib/dlib.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'dlib/dlib.c')

diff --git a/dlib/dlib.c b/dlib/dlib.c
index f2ef2dd1..a3c59060 100644
--- a/dlib/dlib.c
+++ b/dlib/dlib.c
@@ -133,6 +133,15 @@ char *dStrstrip(char *s)
    return s;
 }
 
+/*
+ * Clear the contents of the string
+ */
+void dStrshred(char *s)
+{
+   if (s)
+      memset(s, 0, strlen(s));
+}
+
 /*
  * Return a new string of length 'len' filled with 'c' characters
  */
@@ -335,6 +344,15 @@ void dStr_truncate (Dstr *ds, int len)
    }
 }
 
+/*
+ * Clear a Dstr.
+ */
+void dStr_shred (Dstr *ds)
+{
+   if (ds && ds->sz > 0)
+      memset(ds->str, '\0', ds->sz);
+}
+
 /*
  * Erase a substring.
  */
-- 
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