Initial checkin

1 files changed, 62 insertions, 0 deletions

diff --git a/libstore/typed.c b/libstore/typed.c
new file mode 100644
index 00000000..09f939d1
--- /dev/null
+++ b/libstore/typed.c
@@ -0,0 +1,62 @@
+/* Support for opening `typed' stores
+
+   Copyright (C) 1997 Free Software Foundation, Inc.
+
+   Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+   This task is part of the GNU Hurd.
+
+   The GNU Hurd 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 2, or (at
+   your option) any later version.
+
+   The GNU Hurd 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */
+
+#include <string.h>
+
+#include "store.h"
+
+/* Open the store indicated by NAME, which should consist of a store type
+   name followed by a ':' and any type-specific name, returning the new store
+   in STORE.  CLASSES is used to select classes specified by the type name;
+   if it is 0, STORE_STD_CLASSES is used.  */
+error_t
+store_typed_open (const char *name, int flags,
+		  const struct store_class *const *classes,
+		  struct store **store)
+{
+  const struct store_class *const *cl;
+  const char *clname_end = strchr (name, ':');
+
+  if (! clname_end)
+    clname_end = name + strlen (name);
+
+  if (! classes)
+    classes = store_std_classes;
+  for (cl = classes; *cl; cl++)
+    if (strlen ((*cl)->name) == (clname_end - name)
+	&& strncmp (name, (*cl)->name, (clname_end - name)) == 0)
+      break;
+
+  if (! *cl)
+    return EINVAL;
+
+  if (! (*cl)->open)
+    return EOPNOTSUPP;
+
+  if (*clname_end)
+    clname_end++;		/* Skip the ':' */
+
+  return (*(*cl)->open) (clname_end, flags, classes, store);
+}
+
+struct store_class
+store_typed_open_class = { -1, "typed", open: store_typed_open };