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early detection

pespin/master
Lev Walkin 2006-07-27 13:16:51 +00:00
parent fa8b09da92
commit 253cfcf275
1 changed files with 3 additions and 2 deletions
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5
skeletons/ber_tlv_length.c
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@ -51,13 +51,14 @@ ber_fetch_length(int _is_constructed, const void *bufptr, size_t size,
}
if(oct == 0) {
ber_tlv_len_t lenplusepsilon = len + 1024;
ber_tlv_len_t lenplusepsilon = (size_t)len + 1024;
/*
* Here length may be very close or equal to 2G.
* However, the arithmetics used in some decoders
* may add some (small) quantities to the length,
* to check the resulting value against some limits.
* This may result in integer wrap-around.
* This may result in integer wrap-around, which
* we try to avoid by checking it earlier here.
*/
if(lenplusepsilon < 0) {
/* Too large length value */