'char' argument to islower must be converted to 'unsigned char'

diff --git a/apps/enc.c b/apps/enc.c
index f43bb029a9e3f20b6fb77c8e8b07500642d2236d..95aae9afb33323d2a5d510f7de8b5a1d7b19f8ec 100644 (file)
--- a/apps/enc.c
+++ b/apps/enc.c
@@ -87,7 +87,7 @@ void show_ciphers(const OBJ_NAME *name,void *bio_)
        BIO *bio=bio_;
        static int n;
 
-       if(!islower(*name->name))
+       if(!islower((unsigned char)*name->name))
                return;
 
        BIO_printf(bio,"-%-25s",name->name);