g10/gpgsql.h

   1 /* gpgsql.h - SQLite helper functions.
   2  * Copyright (C) 2015 g10 Code GmbH
   3  *
   4  * This file is part of GnuPG.
   5  *
   6  * GnuPG is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GnuPG is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <https://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef GNUPG_GPGSQL_H
  21 #define GNUPG_GPGSQL_H
  22
  23 #include <sqlite3.h>
  24
  25 enum gpgsql_arg_type
  26   {
  27     GPGSQL_ARG_END = 0xdead001,
  28     GPGSQL_ARG_INT,
  29     GPGSQL_ARG_LONG_LONG,
  30     GPGSQL_ARG_STRING,
  31     /* This takes two arguments: the blob as a void * and the length
  32        of the blob as a long long.  */
  33     GPGSQL_ARG_BLOB
  34   };
  35
  36 int gpgsql_exec_printf (sqlite3 *db,
  37                         int (*callback)(void*,int,char**,char**), void *cookie,
  38                         char **errmsg,
  39                         const char *sql, ...);
  40
  41 typedef int (*gpgsql_stepx_callback) (void *cookie,
  42                                       /* number of columns.  */
  43                                       int cols,
  44                                       /* columns as text.  */
  45                                       char **values,
  46                                       /* column names.  */
  47                                       char **names,
  48                                       /* The prepared statement so
  49                                        * that it is possible to use
  50                                        * something like
  51                                        * sqlite3_column_blob().  */
  52                                       sqlite3_stmt *statement);
  53
  54 int gpgsql_stepx (sqlite3 *db,
  55                   sqlite3_stmt **stmtp,
  56                   gpgsql_stepx_callback callback,
  57                   void *cookie,
  58                   char **errmsg,
  59                   const char *sql, ...);
  60
  61 #endif /*GNUPG_GPGSQL_H*/