1 files changed, 77 insertions, 0 deletions

diff --git a/src/lib/sq/sq_prepare.c b/src/lib/sq/sq_prepare.c
new file mode 100644
index 000000000..d1ca0e8bd
--- /dev/null
+++ b/src/lib/sq/sq_prepare.c
@@ -0,0 +1,77 @@
+/*
+   This file is part of GNUnet
+   Copyright (C) 2018 GNUnet e.V.
+
+   GNUnet is free software: you can redistribute it and/or modify it
+   under the terms of the GNU Affero General Public License as published
+   by the Free Software Foundation, either version 3 of the License,
+   or (at your option) any later version.
+
+   GNUnet 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
+   Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     SPDX-License-Identifier: AGPL3.0-or-later
+ */
+/**
+ * @file sq/sq_prepare.c
+ * @brief helper functions for executing SQL statements
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "gnunet_sq_lib.h"
+
+
+/**
+ * Create a `struct GNUNET_SQ_PrepareStatement`
+ *
+ * @param sql actual SQL statement
+ * @param pstmt where to store the handle
+ * @return initialized struct
+ */
+struct GNUNET_SQ_PrepareStatement
+GNUNET_SQ_make_prepare (const char *sql,
+                        sqlite3_stmt **pstmt)
+{
+  struct GNUNET_SQ_PrepareStatement ps = {
+    .sql = sql,
+    .pstmt = pstmt
+  };
+
+  return ps;
+}
+
+
+enum GNUNET_GenericReturnValue
+GNUNET_SQ_prepare (sqlite3 *dbh,
+                   const struct GNUNET_SQ_PrepareStatement *ps)
+{
+  for (unsigned int i = 0; NULL != ps[i].sql; i++)
+  {
+    const char *epos = NULL;
+    int ret;
+
+    if (SQLITE_OK !=
+        (ret = sqlite3_prepare_v2 (dbh,
+                                   ps[i].sql,
+                                   strlen (ps[i].sql),
+                                   ps[i].pstmt,
+                                   &epos)))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to prepare SQL `%s': error %d at %s\n",
+                  ps[i].sql,
+                  ret,
+                  epos);
+      return GNUNET_SYSERR;
+    }
+  }
+  return GNUNET_OK;
+}
+
+
+/* end of sq_prepare.c */