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Fix calculation of ISMN check digit.

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This has always been broken, so back-patch to all supported versions.

Fabien COELHO
This commit is contained in:
Heikki Linnakangas 2014-01-13 15:42:35 +02:00
parent 370178172f
commit 50c5770ecd
1 changed files with 1 additions and 1 deletions
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contrib/isn/isn.c
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@ -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);