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fix tlv.c

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This commit is contained in:
merlokk 2018-11-14 19:26:19 +02:00
parent 5e3fa42c23
commit 46769838f2
1 changed files with 7 additions and 8 deletions
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15
client/emv/tlv.c
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@ -92,16 +92,15 @@ static size_t tlv_parse_len(const unsigned char **buf, size_t *len)
return l;
size_t ll = l &~ TLV_LEN_LONG;
if (*len < ll)
if (ll > 5)
return TLV_LEN_INVALID;
/* FIXME */
if (ll != 1)
return TLV_LEN_INVALID;
l = **buf;
--*len;
++*buf;
l = 0;
for (int i = 1; i <= ll; i++) {
l = (l << 8) + **buf;
--*len;
++*buf;
}
return l;
}