reorganize code a lot: create a lib-crypt with everything smime or gpg

[apps/madmutt.git] / lib-crypt / crypt-mod.c

diff --git a/lib-crypt/crypt-mod.c b/lib-crypt/crypt-mod.c
new file mode 100644 (file)
index 0000000..9a43556
--- /dev/null
+++ b/lib-crypt/crypt-mod.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright notice from original mutt:
+ * Copyright (C) 2004 g10 Code GmbH
+ *
+ * This file is part of mutt-ng, see http://www.muttng.org/.
+ * It's licensed under the GNU General Public License,
+ * please see the file GPL in the top level source directory.
+ */
+
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <lib-lib/mem.h>
+
+#include "crypt-mod.h"
+
+/* A type an a variable to keep track of registered crypto modules. */
+typedef struct crypt_module *crypt_module_t;
+
+struct crypt_module {
+  crypt_module_specs_t specs;
+  crypt_module_t next, *prevp;
+};
+
+static crypt_module_t modules;
+
+/* Register a new crypto module. */
+void crypto_module_register (crypt_module_specs_t specs)
+{
+  crypt_module_t module_new = p_new(struct crypt_module, 1);
+
+  module_new->specs = specs;
+  module_new->next = modules;
+  if (modules)
+    modules->prevp = &module_new->next;
+  modules = module_new;
+}
+
+/* Return the crypto module specs for IDENTIFIER.  This function is
+   usually used via the CRYPT_MOD_CALL[_CHECK] macros. */
+crypt_module_specs_t crypto_module_lookup (int identifier)
+{
+  crypt_module_t module = modules;
+
+  while (module && (module->specs->identifier != identifier))
+    module = module->next;
+
+  return module ? module->specs : NULL;
+}