2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
3 Copyright (C) 2016-2019 Sergey Matveev <stargrave@stargrave.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, version 3 of the License.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
26 "golang.org/x/crypto/blake2b"
29 func Check(src io.Reader, checksum []byte) (bool, error) {
30 hsh, err := blake2b.New256(nil)
34 if _, err = io.Copy(hsh, bufio.NewReader(src)); err != nil {
37 return bytes.Compare(hsh.Sum(nil), checksum) == 0, nil
40 func (ctx *Ctx) checkXxIsBad(nodeId *NodeId, xx TRxTx) bool {
42 for job := range ctx.Jobs(nodeId, xx) {
46 "pkt": ToBase32(job.HshValue[:]),
48 ctx.LogP("check", sds, "")
49 gut, err := Check(job.Fd, job.HshValue[:])
52 ctx.LogE("check", SdsAdd(sds, SDS{"err": err}), "")
57 ctx.LogE("check", sds, "bad")
63 func (ctx *Ctx) Check(nodeId *NodeId) bool {
64 return !(ctx.checkXxIsBad(nodeId, TRx) || ctx.checkXxIsBad(nodeId, TTx))