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/>.
29 "golang.org/x/sys/unix"
35 Neigh map[NodeId]*Node
36 Alias map[string]*NodeId
43 NotifyFile *FromToJSON
44 NotifyFreq *FromToJSON
45 NotifyExec map[string]*FromToJSON
48 func (ctx *Ctx) FindNode(id string) (*Node, error) {
49 nodeId, known := ctx.Alias[id]
51 return ctx.Neigh[*nodeId], nil
53 nodeId, err := NodeIdFromString(id)
57 node, known := ctx.Neigh[*nodeId]
59 return nil, errors.New("Unknown node")
64 func (ctx *Ctx) ensureRxDir(nodeId *NodeId) error {
65 dirPath := filepath.Join(ctx.Spool, nodeId.String(), string(TRx))
66 if err := os.MkdirAll(dirPath, os.FileMode(0777)); err != nil {
67 ctx.LogE("dir-ensure", SDS{"dir": dirPath, "err": err}, "")
70 fd, err := os.Open(dirPath)
72 ctx.LogE("dir-ensure", SDS{"dir": dirPath, "err": err}, "")
79 func CtxFromCmdline(cfgPath, spoolPath, logPath string, quiet, debug bool) (*Ctx, error) {
80 env := os.Getenv(CfgPathEnv)
84 cfgRaw, err := ioutil.ReadFile(cfgPath)
88 ctx, err := CfgParse(cfgRaw)
93 env = os.Getenv(CfgSpoolEnv)
101 env = os.Getenv(CfgLogEnv)
106 ctx.LogPath = logPath
113 func (ctx *Ctx) IsEnoughSpace(want int64) bool {
115 if err := unix.Statfs(ctx.Spool, &s); err != nil {
118 return int64(s.Bavail)*int64(s.Bsize) > want
121 func (ctx *Ctx) Umask() {
122 if ctx.UmaskForce != nil {
123 syscall.Umask(*ctx.UmaskForce)