1 files changed, 83 insertions, 0 deletions

diff --git a/src/sq/sq_prepare.c b/src/sq/sq_prepare.c
new file mode 100644
index 000000000..8c46302f2
--- /dev/null
+++ b/src/sq/sq_prepare.c
@@ -0,0 +1,83 @@
+/*
+  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/>.
+*/
+/**
+ * @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;
+}
+
+
+
+/**
+ * Prepare all statements given in the (NULL,NULL)-terminated
+ * array at @a ps
+ *
+ * @param dbh database to use
+ * @param ps array of statements to prepare
+ * @return #GNUNET_OK on success
+ */
+int
+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 */