Introduce CONF_DIRS_NULSTR helper to define standard conf dirs

[elogind.git] / src / shared / macro.h

diff --git a/src/shared/macro.h b/src/shared/macro.h
index 9ee332c8dfaf74c4e0a0b8b2b0350d8db7446a98..6d4712c30d779ac9889a605b1201f9ad18a5c0ec 100644 (file)
--- a/src/shared/macro.h
+++ b/src/shared/macro.h
@@ -384,6 +384,21 @@ do {                                                                    \
                 _found;                                                 \
         })
 
+/* Return a nulstr for a standard cascade of configuration directories,
+ * suitable to pass to conf_files_list_nulstr or config_parse_many. */
+#define CONF_DIRS_NULSTR(n) \
+        "/etc/" n ".d\0" \
+        "/run/" n ".d\0" \
+        "/usr/local/lib/" n ".d\0" \
+        "/usr/lib/" n ".d\0" \
+        CONF_DIR_SPLIT_USR(n)
+
+#ifdef HAVE_SPLIT_USR
+#define CONF_DIR_SPLIT_USR(n) "/lib/" n ".d\0"
+#else
+#define CONF_DIR_SPLIT_USR(n)
+#endif
+
 /* Define C11 thread_local attribute even on older gcc compiler
  * version */
 #ifndef thread_local