id128: introduce ID128_UUID_STRING_MAX for sizing UUID buffers

[thirdparty/systemd.git] / src / libsystemd / sd-id128 / id128-util.h

diff --git a/src/libsystemd/sd-id128/id128-util.h b/src/libsystemd/sd-id128/id128-util.h
index 82a69a77f30a6077018b1660ebb401d63a328908..fe0149a8aa1b370d29489eca53e4bc370608f6b0 100644 (file)
--- a/src/libsystemd/sd-id128/id128-util.h
+++ b/src/libsystemd/sd-id128/id128-util.h
@@ -8,7 +8,9 @@
 #include "hash-funcs.h"
 #include "macro.h"
 
-char *id128_to_uuid_string(sd_id128_t id, char s[37]);
+#define ID128_UUID_STRING_MAX 37
+
+char *id128_to_uuid_string(sd_id128_t id, char s[static ID128_UUID_STRING_MAX]);
 
 bool id128_is_valid(const char *s) _pure_;