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-rw-r--r--src/shared/def.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/shared/def.h b/src/shared/def.h
index a2304fddda..7777756aad 100644
--- a/src/shared/def.h
+++ b/src/shared/def.h
@@ -44,6 +44,7 @@
#define LOWERCASE_LETTERS "abcdefghijklmnopqrstuvwxyz"
#define UPPERCASE_LETTERS "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
#define LETTERS LOWERCASE_LETTERS UPPERCASE_LETTERS
+#define ALPHANUMERICAL LETTERS DIGITS
#define REBOOT_PARAM_FILE "/run/systemd/reboot-param"