hurd_types: Add const_string_t type

This will allow to relieve constraints in callers, e.g. dir_lookup("") would
otherwise produce a warning with gcc-11 since char[1024] would mean that
dir_lookup would read all 1024 characters while it is not.

* hurd/hurd_types.h (const_string_t): New type.

1 files changed, 1 insertions, 0 deletions

diff --git a/hurd/hurd_types.h b/hurd/hurd_types.h
index 288dcc2f..f0521191 100644
--- a/hurd/hurd_types.h
+++ b/hurd/hurd_types.h
@@ -61,6 +61,7 @@ typedef mach_port_t shutdown_t;
 typedef char *data_t;
 typedef const char *const_data_t;
 typedef char string_t [1024];
+typedef const char *const_string_t;
 typedef int *intarray_t;
 typedef const int *const_intarray_t;
 typedef int *fd_mask_t;