From 866a1f0923b67373701a578e98b74ab2458f74db Mon Sep 17 00:00:00 2001 From: Heikki Linnakangas Date: Mon, 13 Jan 2014 15:42:35 +0200 Subject: [PATCH] Fix calculation of ISMN check digit. This has always been broken, so back-patch to all supported versions. Fabien COELHO --- contrib/isn/isn.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/contrib/isn/isn.c b/contrib/isn/isn.c index be9c5cecbd..1124744979 100644 --- a/contrib/isn/isn.c +++ b/contrib/isn/isn.c @@ -827,7 +827,7 @@ string2ean(const char *str, bool errorOK, ean13 *result, case ISMN: strncpy(buf, "9790", 4); /* this isn't for sure yet, for now * ISMN it's only 9790 */ - valid = (valid && ((rcheck = checkdig(buf + 3, 10)) == check || magic)); + valid = (valid && ((rcheck = checkdig(buf, 13)) == check || magic)); break; case ISBN: strncpy(buf, "978", 3);