Full_Name: Kevin H. Patterson Version: git master HEAD OS: macosx 10.9.1 URL: http://campus.hartland.edu/temp/0001-fixed-memory-leak-in-LDAPAsynConnection... Submission from: (NULL) (65.207.4.130)
In libldapcpp, there is a memory leak in the LDAPAsynConnection class. ldap_initialize() allocates memory which is never freed. This memory (ld structure) should be freed by a call to ldap_unbind() in the class destructor and other places where the ld structure is replaced with a new one.
I have included a patch against git master HEAD below.
---
From c9b4b1a2638eec20f35c2eae31f0471cc61a21ff Mon Sep 17 00:00:00 2001
From: "Kevin H. Patterson" kevpatt@khptech.com Date: Wed, 26 Feb 2014 13:08:24 -0500 Subject: [PATCH] fixed memory leak in LDAPAsynConnection.cpp
--- contrib/ldapc++/src/LDAPAsynConnection.cpp | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/contrib/ldapc++/src/LDAPAsynConnection.cpp b/contrib/ldapc++/src/LDAPAsynConnection.cpp index 894f8ba..582d2b5 100644 --- a/contrib/ldapc++/src/LDAPAsynConnection.cpp +++ b/contrib/ldapc++/src/LDAPAsynConnection.cpp @@ -43,7 +43,10 @@ LDAPAsynConnection::LDAPAsynConnection(const string& url, int port, this->setConstraints(cons); }
-LDAPAsynConnection::~LDAPAsynConnection(){} +LDAPAsynConnection::~LDAPAsynConnection(){ + unbind(); + delete m_constr; +}
void LDAPAsynConnection::init(const string& hostname, int port){ DEBUG(LDAP_DEBUG_TRACE,"LDAPAsynConnection::init" << endl); @@ -51,6 +54,8 @@ void LDAPAsynConnection::init(const string& hostname, int port){ " hostname:" << hostname << endl << " port:" << port << endl);
+ unbind(); + m_uri.setScheme("ldap"); m_uri.setHost(hostname); m_uri.setPort(port); @@ -66,6 +71,8 @@ void LDAPAsynConnection::init(const string& hostname, int port){ }
void LDAPAsynConnection::initialize(const std::string& uri){ + unbind(); + m_uri.setURLString(uri); int ret = ldap_initialize(&cur_session, m_uri.getURLString().c_str()); if ( ret != LDAP_SUCCESS ) { @@ -277,6 +284,7 @@ void LDAPAsynConnection::unbind(){
void LDAPAsynConnection::setConstraints(LDAPConstraints *cons){ DEBUG(LDAP_DEBUG_TRACE,"LDAPAsynConnection::setConstraints()" << endl); + delete m_constr; m_constr=cons; }