1 files changed, 64 insertions, 0 deletions
diff --git a/compat/seq.c b/compat/seq.c
new file mode 100644
index 0000000..b4c8b46
--- /dev/null
+++ b/compat/seq.c
@@ -0,0 +1,64 @@
+/* seq.c - This is the sequential visit of the database.  This defines two
+   user-visable routines that are used together. This is the DBM interface. */
+
+/* This file is part of GDBM, the GNU data base manager.
+   Copyright (C) 1990, 1991, 1993, 2007  Free Software Foundation, Inc.
+
+   This program 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.
+
+   This program 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, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Include system configuration before all else. */
+#include "autoconf.h"
+
+#include "gdbmdefs.h"
+#include "extern.h"
+
+/* Start the visit of all keys in the database.  This produces something in
+   hash order, not in any sorted order.  */
+
+datum
+firstkey (void)
+{
+  datum ret_val;
+
+  /* Free previous dynamic memory, do actual call, and save pointer to new
+     memory. */
+  ret_val = gdbm_firstkey (_gdbm_file);
+  if (_gdbm_memory.dptr != NULL) free (_gdbm_memory.dptr);
+  _gdbm_memory = ret_val;
+
+  /* Return the new value. */
+  return ret_val;
+}
+
+
+/* Continue visiting all keys.  The next key following KEY is returned. */
+
+datum
+nextkey (datum key)
+{
+  datum ret_val;
+
+  /* Make sure we have a valid key. */
+  if (key.dptr == NULL)
+    return key;
+
+  /* Call gdbm nextkey with supplied value. After that, free the old value. */
+  ret_val = gdbm_nextkey (_gdbm_file, key);
+  if (_gdbm_memory.dptr != NULL) free (_gdbm_memory.dptr);
+  _gdbm_memory = ret_val;
+
+  /* Return the new value. */
+  return ret_val;
+}