2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
3 Copyright (C) 2016-2017 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, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
27 "golang.org/x/crypto/blake2b"
30 func Check(src io.Reader, checksum []byte) (bool, error) {
31 hsh, err := blake2b.New256(nil)
35 if _, err = io.Copy(hsh, bufio.NewReader(src)); err != nil {
38 return bytes.Compare(hsh.Sum(nil), checksum) == 0, nil
41 func (ctx *Ctx) checkXx(nodeId *NodeId, xx TRxTx) bool {
43 for job := range ctx.Jobs(nodeId, xx) {
47 "pkt": ToBase32(job.HshValue[:]),
49 ctx.LogI("check", sds, "")
50 gut, err := Check(job.Fd, job.HshValue[:])
53 ctx.LogE("check", SdsAdd(sds, SDS{"err": err}), "")
58 ctx.LogE("check", sds, "bad")
64 func (ctx *Ctx) Check(nodeId *NodeId) bool {
65 return ctx.checkXx(nodeId, TRx) || ctx.checkXx(nodeId, TTx)