1 files changed, 5 insertions, 0 deletions
diff --git a/common/util.c b/common/util.c
index 701419b073..054e8e839c 100644
--- a/common/util.c
+++ b/common/util.c
@@ -47,6 +47,11 @@ int isalpha(int c)
 	return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z');
 }
 
+int isupper(int c)
+{
+	return c >= 'A' && c <= 'Z';
+}
+
 int isprint(int c)
 {
 	return c >= ' ' && c <= '~';