Fix memory leak when deleting a KSSLCertificate that holds a CRL

(cherry picked from commit 9bf244dd97)

tdeio/kssl/kopenssl.cc

@@ -80,6 +80,7 @@ static X509_STORE_CTX *(*K_X509_STORE_CTX_new) (void) = 0L;
 static void (*K_X509_STORE_free) (X509_STORE *) = 0L;
 static X509_STORE *(*K_X509_STORE_new) (void) = 0L;
 static void (*K_X509_free) (X509 *) = 0L;
+static void (*K_X509_CRL_free) (X509_CRL *) = 0L;
 static char *(*K_X509_NAME_oneline) (X509_NAME *,char *,int) = 0L;
 static X509_NAME *(*K_X509_get_subject_name) (X509 *) = 0L;
 static X509_NAME *(*K_X509_get_issuer_name) (X509 *) = 0L;
@@ -396,6 +397,7 @@ TDEConfig *cfg;
    if (_cryptoLib) {
 #ifdef KSSL_HAVE_SSL
       K_X509_free = (void (*) (X509 *)) GET_CRYPTOLIB_SYMBOL("X509_free");
+      K_X509_CRL_free = (void (*) (X509_CRL *)) GET_CRYPTOLIB_SYMBOL("X509_CRL_free");
       K_RAND_egd = (int (*)(const char *)) GET_CRYPTOLIB_SYMBOL("RAND_egd");
       K_RAND_load_file = (int (*)(const char *, long)) GET_CRYPTOLIB_SYMBOL("RAND_load_file");
       K_RAND_file_name = (const char* (*)(char *, size_t)) GET_CRYPTOLIB_SYMBOL("RAND_file_name");
@@ -899,6 +901,11 @@ void KOpenSSLProxy::X509_free(X509 *a) {
 }
 
 
+void KOpenSSLProxy::X509_CRL_free(X509_CRL *a) {
+   if (K_X509_CRL_free) (K_X509_CRL_free)(a);
+}
+
+
 char *KOpenSSLProxy::X509_NAME_oneline(X509_NAME *a,char *buf,int size) {
    if (K_X509_NAME_oneline) return (K_X509_NAME_oneline)(a,buf,size);
    return 0L;

tdeio/kssl/kopenssl.h

@@ -360,6 +360,11 @@ public:
     */
    void X509_free(X509 *v);
 
+   /*
+    *   X509_CRL_free - free up an X509 CRL
+    */
+   void X509_CRL_free(X509_CRL *v);
+
 
    /*
     *   X509_NAME_oneline - return the X509 data in a string

tdeio/kssl/ksslcertificate.cc

@@ -118,8 +118,12 @@ KSSLCertificate::KSSLCertificate(const KSSLCertificate& x) {
 
 KSSLCertificate::~KSSLCertificate() {
 #ifdef KSSL_HAVE_SSL
-	if (d->m_cert)
+	if (d->m_cert) {
 		d->kossl->X509_free(d->m_cert);
+	}
+	if (d->m_cert_crl) {
+		d->kossl->X509_CRL_free(d->m_cert_crl);
+	}
 #endif
 	delete d;
 }