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| author | Niels Möller <nisse@lysator.liu.se> | 2002-11-16 00:23:04 +0100 |
|---|---|---|
| committer | Niels Möller <nisse@lysator.liu.se> | 2002-11-16 00:23:04 +0100 |
| commit | 093e19c07e1812f8dcd52eb4b18f48ab85778a69 (patch) | |
| tree | 0be8c490df4765eedd8e4451e79c503d3efca6e4 /sexp2bignum.c | |
| parent | 136c422d93036597164b8eb86bc3319061438aa2 (diff) | |
| download | nettle-093e19c07e1812f8dcd52eb4b18f48ab85778a69.tar.gz | |
(nettle_mpz_set_sexp): In the first check against
limit, added some margin to allow for sign octets.
Rev: src/nettle/sexp2bignum.c:1.3
Diffstat (limited to 'sexp2bignum.c')
| -rw-r--r-- | sexp2bignum.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sexp2bignum.c b/sexp2bignum.c index 69757cee..f7ef6884 100644 --- a/sexp2bignum.c +++ b/sexp2bignum.c @@ -38,10 +38,12 @@ nettle_mpz_set_sexp(mpz_t x, unsigned limit, const struct sexp_iterator *i) && i->atom_length && !i->display) { - if (limit && (8 * i->atom_length > limit)) + /* Allow some extra here, for leading sign octets. */ + if (limit && (8 * i->atom_length > (16 + limit))) return 0; nettle_mpz_set_str_256_s(x, i->atom_length, i->atom); + /* FIXME: How to interpret a limit for negative numbers? */ return !limit || mpz_sizeinbase(x, 2) <= limit; } else |