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commit    f6d6b42f2b1a9cbc5d1a8eb0c0d76eb27eecc0e2
Author:   Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date:     Mon Jan 13 13:42:35 2014 +0000

    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 181bbd40721..c7e96022eba 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);


[parent: 2de9051868f1]