modules/db_berkeley Added a compatibility layer between libdb versions smaller than 4.6 and libdb4.6

Cursor method close() is not present in versions smaller than 4.6 thus the module would not compile.
Also c_* methods are marked as deprecated so the compatibility layer should be extended as well.

modules/db_berkeley/bdb_cmd.c

@@ -44,6 +44,7 @@
 #include "bdb_uri.h"
 #include "bdb_res.h"
 #include "bdb_lib.h"
+#include "bdb_crs_compat.h"
 
 #define BDB_BUF_SIZE 1024
 
@@ -56,7 +57,7 @@ static void bdb_cmd_free(db_cmd_t* cmd, bdb_cmd_t* payload)
 {
 	db_drv_free(&payload->gen);
 	if (payload->dbcp)
-		payload->dbcp->c_close(payload->dbcp);
+		payload->dbcp->CLOSE_CURSOR(payload->dbcp);
 	if(payload->skey.s)
 		pkg_free(payload->skey.s);
 	pkg_free(payload);

modules/db_berkeley/bdb_crs_compat.h

@@ -0,0 +1,43 @@
+/*
+ * $Id$
+ *
+ * BDB Compatibility layer for SIP-router
+ *
+ * Copyright (C) 2010 Marius Zbihlei marius.zbihlei at 1and1 dot ro
+ *
+ * This file is part of SIP-router, a free SIP server.
+ *
+ * SIP-router is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ *
+ * SIP-router is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#ifndef BDB_CRS_COMPAT_H
+#define BDB_CRS_COMPAT_H
+
+#include <db.h>
+
+/* this is a compatibility layer for cursor close function
+ * Historically, the function was called c_close() but it became deprecated
+ * starting with version 4.6
+ */
+#if DB_VERSION_MAJOR < 4
+#	define CLOSE_CURSOR c_close
+#else
+#if (DB_VERSION_MAJOR == 4) && (DB_VERSION_MINOR < 6)
+#	define CLOSE_CURSOR c_close
+#else
+#	define CLOSE_CURSOR close
+#endif
+#endif
+
+#endif //BDB_CRS_COMPAT_H

modules/db_berkeley/bdb_res.c

@@ -32,6 +32,7 @@
 
 #include "bdb_res.h"
 #include "bdb_cmd.h"
+#include "bdb_crs_compat.h"
 
 #include "../../mem/mem.h"
 #include "../../dprint.h"
@@ -48,7 +49,7 @@ void bdb_res_free(db_res_t* res, bdb_res_t *payload)
 
 	if(bcmd->dbcp!=NULL)
 	{
-		bcmd->dbcp->close(bcmd->dbcp);
+		bcmd->dbcp->CLOSE_CURSOR(bcmd->dbcp);
 		bcmd->dbcp = NULL;
 	}
 	db_drv_free(&payload->gen);

modules/db_berkeley/km_db_berkeley.c

@@ -51,6 +51,7 @@
 #include "km_bdb_res.h"
 #include "km_bdb_mi.h"
 #include "bdb_mod.h"
+#include "bdb_crs_compat.h"
 
 #ifndef CFG_DIR
 #define CFG_DIR "/tmp"
@@ -457,7 +458,7 @@ int km_bdb_query(db1_con_t* _con, db_key_t* _k, db_op_t* _op, db_val_t* _v,
 			i++;
 		}
 		
-		dbcp->c_close(dbcp);
+		dbcp->CLOSE_CURSOR(dbcp);
 		ret=0;
 		
 #ifdef BDB_EXTRA_DEBUG
@@ -520,7 +521,7 @@ int km_bdb_query(db1_con_t* _con, db_key_t* _k, db_op_t* _op, db_val_t* _v,
 			i++;
 		}
 		
-		dbcp->c_close(dbcp);
+		dbcp->CLOSE_CURSOR(dbcp);
 		BDB_CON_RESULT(_con) = *_r;
 		return 0; 
 	}
@@ -834,7 +835,7 @@ int bdb_delete(db1_con_t* _h, db_key_t* _k, db_op_t* _op, db_val_t* _v, int _n)
 			ret = dbcp->c_del(dbcp, 0);
 		}
 		
-		dbcp->c_close(dbcp);
+		dbcp->CLOSE_CURSOR(dbcp);
 		return 0;
 	}
 
@@ -1006,7 +1007,7 @@ int _bdb_delete_cursor(db1_con_t* _h, db_key_t* _k, db_op_t* _op, db_val_t* _v,
 	
 error:
 	if(dbcp)
-		dbcp->c_close(dbcp);
+		dbcp->CLOSE_CURSOR(dbcp);
 	if(_r)
 		db_free_result(_r);
 	if(lkey)