Add printf attributes in exported headers

[elogind.git] / src / systemd / sd-bus.h

diff --git a/src/systemd/sd-bus.h b/src/systemd/sd-bus.h
index 8824efeabaa81148d439cea884f6924506f73d92..55648e0b349f10eddc18398cb7560318a0a7c368 100644 (file)
--- a/src/systemd/sd-bus.h
+++ b/src/systemd/sd-bus.h
@@ -32,6 +32,14 @@
 extern "C" {
 #endif
 
+#ifndef _sd_printf_attr_
+#  if __GNUC__ >= 4
+#    define _sd_printf_attr_(a,b) __attribute__ ((format (printf, a, b)))
+#  else
+#    define _sd_printf_attr_(a,b)
+#  endif
+#endif
+
 /* TODO:
  * - add page donation logic
  * - api for appending/reading fixed arrays
@@ -179,6 +187,7 @@ int sd_bus_list_names(sd_bus *bus, char ***l);
 int sd_bus_get_owner(sd_bus *bus, const char *name, char **owner);
 int sd_bus_get_owner_uid(sd_bus *bus, const char *name, uid_t *uid);
 int sd_bus_get_owner_pid(sd_bus *bus, const char *name, pid_t *pid);
+int sd_bus_get_owner_machine_id(sd_bus *bus, const char *name, sd_id128_t *machine);
 
 /* Error structures */
 
@@ -186,7 +195,7 @@ int sd_bus_get_owner_pid(sd_bus *bus, const char *name, pid_t *pid);
 #define SD_BUS_ERROR_MAKE(name, message) ((sd_bus_error) {(name), (message), 0})
 
 void sd_bus_error_free(sd_bus_error *e);
-int sd_bus_error_set(sd_bus_error *e, const char *name, const char *format, ...);
+int sd_bus_error_set(sd_bus_error *e, const char *name, const char *format, ...)  _sd_printf_attr_(3, 0);
 void sd_bus_error_set_const(sd_bus_error *e, const char *name, const char *message);
 int sd_bus_error_copy(sd_bus_error *dest, const sd_bus_error *e);
 int sd_bus_error_is_set(const sd_bus_error *e);