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[nncp.git] / src / cmd / nncp-check / main.go
1 /*
2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
3 Copyright (C) 2016-2019 Sergey Matveev <stargrave@stargrave.org>
4
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.
8
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.
13
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/>.
16 */
17
18 // Verify NNCP Rx/Tx packets checksum.
19 package main
20
21 import (
22         "flag"
23         "fmt"
24         "log"
25         "os"
26
27         "go.cypherpunks.ru/nncp/v5"
28 )
29
30 func usage() {
31         fmt.Fprintf(os.Stderr, nncp.UsageHeader())
32         fmt.Fprintf(os.Stderr, "nncp-check -- verify Rx/Tx packets checksum\n\n")
33         fmt.Fprintf(os.Stderr, "Usage: %s [options]\nOptions:\n", os.Args[0])
34         flag.PrintDefaults()
35 }
36
37 func main() {
38         var (
39                 cfgPath   = flag.String("cfg", nncp.DefaultCfgPath, "Path to configuration file")
40                 nodeRaw   = flag.String("node", "", "Process only that node")
41                 spoolPath = flag.String("spool", "", "Override path to spool")
42                 logPath   = flag.String("log", "", "Override path to logfile")
43                 quiet     = flag.Bool("quiet", false, "Print only errors")
44                 showPrgrs = flag.Bool("progress", false, "Force progress showing")
45                 omitPrgrs = flag.Bool("noprogress", false, "Omit progress showing")
46                 debug     = flag.Bool("debug", false, "Print debug messages")
47                 version   = flag.Bool("version", false, "Print version information")
48                 warranty  = flag.Bool("warranty", false, "Print warranty information")
49         )
50         flag.Usage = usage
51         flag.Parse()
52         if *warranty {
53                 fmt.Println(nncp.Warranty)
54                 return
55         }
56         if *version {
57                 fmt.Println(nncp.VersionGet())
58                 return
59         }
60
61         ctx, err := nncp.CtxFromCmdline(
62                 *cfgPath,
63                 *spoolPath,
64                 *logPath,
65                 *quiet,
66                 *showPrgrs,
67                 *omitPrgrs,
68                 *debug,
69         )
70         if err != nil {
71                 log.Fatalln("Error during initialization:", err)
72         }
73         ctx.Umask()
74
75         var nodeOnly *nncp.Node
76         if *nodeRaw != "" {
77                 nodeOnly, err = ctx.FindNode(*nodeRaw)
78                 if err != nil {
79                         log.Fatalln("Invalid -node specified:", err)
80                 }
81         }
82
83         isBad := false
84         for nodeId, node := range ctx.Neigh {
85                 if nodeOnly != nil && nodeId != *nodeOnly.Id {
86                         continue
87                 }
88                 if !ctx.Check(node.Id) {
89                         isBad = true
90                 }
91         }
92         if isBad {
93                 os.Exit(1)
94         }
95 }