1 files changed, 94 insertions, 0 deletions

diff --git a/src/my/my.c b/src/my/my.c
new file mode 100644
index 000000000..62b1ede09
--- /dev/null
+++ b/src/my/my.c
@@ -0,0 +1,94 @@
+/*
+     This file is part of GNUnet
+     Copyright (C) 2016 GNUnet e.V.
+
+     GNUnet 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, 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
+     General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+     Boston, MA 02110-1301, USA.
+*/
+/**
+ * @file my/my.c
+ * @brief library to help with access to a MySQL database
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <mysql/mysql.h>
+#include "gnunet_my_lib.h"
+
+
+
+/**
+ * Run a prepared SELECT statement.
+ *
+ * @param mc mysql context
+ * @param sh handle to SELECT statment
+ * @param params parameters to the statement
+ * @return
+ */
+int
+GNUNET_MY_exec_prepared (struct GNUNET_MYSQL_Context *mc,
+                         struct GNUNET_MYSQL_StatementHandle *sh,
+                         const struct GNUNET_MY_QueryParam *params)
+{
+  const struct GNUNET_MY_QueryParam *p;
+  unsigned int num;
+  unsigned int i;
+  MYSQL_STMT *stmt;
+
+  num = 0;
+  for (i=0;NULL != params[i].conv;i++)
+    num += params[i].num_params;
+  {
+    MYSQL_BIND qbind[num];
+    unsigned int off;
+
+    memset(qbind, 0, sizeof(qbind));
+    off = 0;
+    for (i=0;NULL != (p = &params[i])->conv;i++)
+    {
+      if (GNUNET_OK !=
+          p->conv (p->conv_cls,
+                   p,
+                   &qbind[off]))
+      {
+        return GNUNET_SYSERR;
+      }
+      off += p->num_params;
+    }
+    stmt = GNUNET_MYSQL_statement_get_stmt (mc, sh);
+    if (mysql_stmt_bind_param (stmt,
+                               qbind))
+    {
+      GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, "mysql",
+                       _("`%s' failed at %s:%d with error: %s\n"),
+                       "mysql_stmt_bind_param", __FILE__, __LINE__,
+                       mysql_stmt_error (stmt));
+      GNUNET_MYSQL_statements_invalidate (mc);
+      return GNUNET_SYSERR;
+    }
+  }
+  if (mysql_stmt_execute (stmt))
+  {
+    GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, "mysql",
+                     _("`%s' failed at %s:%d with error: %s\n"),
+                     "mysql_stmt_execute", __FILE__, __LINE__,
+                     mysql_stmt_error (stmt));
+    GNUNET_MYSQL_statements_invalidate (mc);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/* end of my.c */