/*
- Copyright (C) 2015-2018 IoT.bzh
+ Copyright (C) 2015-2020 IoT.bzh
author: José Bollo <jose.bollo@iot.bzh>
}
/* check all the signature files */
-int check_all_signatures()
+int check_all_signatures(int allow_none)
{
int rc, irc;
unsigned int i, n;
struct filedesc *fdesc;
n = signature_count();
+ if (n == 0 && !allow_none) {
+ ERROR("no signature found");
+ return -1;
+ }
rc = 0;
for (i = n ; i-- > 0 ; ) {
fdesc = signature_of_index(i);
irc = verify_digsig(fdesc);
- if (!irc)
+ if (irc < 0)
rc = irc;
}