gpg: Move sqlite helper functions into their own file.

* g10/tofu.c (sqlite3_exec_printf): Move from here...
* g10/sqlite.c (sqlite3_exec_printf): ... to this new file.  Don't
mark as static.
* g10/tofu.c (sqlite3_stepx): Move from here...
* g10/sqlite.c (sqlite3_stepx): ... to this new file.  Don't
mark as static.
* g10/tofu.c (enum sqlite_arg_type): Move from here...
* g10/sqlite.h (enum sqlite_arg_type): ... to this new file.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>

g10/sqlite.h

@@ -0,0 +1,46 @@
+/* sqlite.h - SQLite helper functions.
+ * Copyright (C) 2015 g10 Code GmbH
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GNUPG_SQLITE_H
+#define GNUPG_SQLITE_H
+
+#include <sqlite3.h>
+
+enum sqlite_arg_type
+  {
+    SQLITE_ARG_END = 0xdead001,
+    SQLITE_ARG_INT,
+    SQLITE_ARG_LONG_LONG,
+    SQLITE_ARG_STRING
+  };
+
+
+int sqlite3_exec_printf (sqlite3 *db,
+                         int (*callback)(void*,int,char**,char**), void *cookie,
+                         char **errmsg,
+                         const char *sql, ...);
+
+int sqlite3_stepx (sqlite3 *db,
+                   sqlite3_stmt **stmtp,
+                   int (*callback) (void*,int,char**,char**),
+                   void *cookie,
+                   char **errmsg,
+                   const char *sql, ...);
+
+#endif