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Amend #2038 fix

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The math was unsafe, thanks to Nalin for spotting it.
This commit is contained in:
Simo Sorce
2011-11-04 16:40:25 -04:00
parent 9378e8b437
commit 08137836a3
1 changed files with 5 additions and 3 deletions
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8
util/ipa_krb5.c
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@@ -13,7 +13,7 @@ static krb5_error_code ipa_get_random_salt(krb5_context krbctx,
krb5_data *salt)
{
krb5_error_code kerr;
int i;
int i, v;
/* make random salt */
salt->length = KRB5P_SALT_SIZE;
@@ -30,8 +30,10 @@ static krb5_error_code ipa_get_random_salt(krb5_context krbctx,
* To avoid any compatibility issue, limits octects only to
* the ASCII printable range, or 0x20 <= val <= 0x7E */
for (i = 0; i < salt->length; i++) {
salt->data[i] %= 0x5E; /* 7E - 20 */
salt->data[i] += 0x20; /* add base */
v = (unsigned char)salt->data[i];
v %= 0x5E; /* 7E - 20 */
v += 0x20; /* add base */
salt->data[i] = v;
}
return 0;