1 files changed, 37 insertions, 0 deletions
diff --git a/src/libshared/include/shared/specifier.h b/src/libshared/include/shared/specifier.h
new file mode 100644
index 0000000000..6b1623ee61
--- /dev/null
+++ b/src/libshared/include/shared/specifier.h
@@ -0,0 +1,37 @@
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd 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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+typedef int (*SpecifierCallback)(char specifier, void *data, void *userdata, char **ret);
+
+typedef struct Specifier {
+        const char specifier;
+        const SpecifierCallback lookup;
+        void *data;
+} Specifier;
+
+int specifier_printf(const char *text, const Specifier table[], void *userdata, char **ret);
+
+int specifier_string(char specifier, void *data, void *userdata, char **ret);
+
+int specifier_machine_id(char specifier, void *data, void *userdata, char **ret);
+int specifier_boot_id(char specifier, void *data, void *userdata, char **ret);
+int specifier_host_name(char specifier, void *data, void *userdata, char **ret);
+int specifier_kernel_release(char specifier, void *data, void *userdata, char **ret);