Added a truncate() method.

2 files changed, 13 insertions, 0 deletions

diff --git a/lib/bufferstore.cc b/lib/bufferstore.cc
index ea4bab6..f2686dc 100644
--- a/lib/bufferstore.cc
+++ b/lib/bufferstore.cc
@@ -179,3 +179,8 @@ void bufferStore::addDWord(long a) {
 	buff[len++] = (a>>16) & 0xff;
 	buff[len++] = (a>>24) & 0xff;  
 }
+
+void bufferStore::truncate(long newLen) {
+	if (newLen < len)
+		len = newLen;
+}
diff --git a/lib/bufferstore.h b/lib/bufferstore.h
index 81704e1..494d0af 100644
--- a/lib/bufferstore.h
+++ b/lib/bufferstore.h
@@ -190,6 +190,14 @@ public:
 	 */
 	void addBuff(const bufferStore &b, long maxLen = -1);
   
+	/**
+	 * Truncates the buffer.
+	 * If the buffer is smaller, does nothing.
+	 *
+	 * @param newLen The new length of the buffer.
+	 */
+	void truncate(long newLen);
+  
 private:
 	void checkAllocd(long newLen);