src/cmd/nncp-check/main.go

   1 /*
   2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
   3 Copyright (C) 2016-2023 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         "path/filepath"
  27         "time"
  28
  29         "go.cypherpunks.ru/nncp/v8"
  30 )
  31
  32 func usage() {
  33         fmt.Fprint(os.Stderr, "nncp-check -- verify Rx/Tx packets checksum\n\n")
  34         fmt.Fprintf(os.Stderr, "Usage: %s [-nock] [options]\nOptions:\n", os.Args[0])
  35         flag.PrintDefaults()
  36 }
  37
  38 func main() {
  39         var (
  40                 nock      = flag.Bool("nock", false, "Process .nock files")
  41                 cycle     = flag.Uint("cycle", 0, "Repeat check after N seconds in infinite loop")
  42                 cfgPath   = flag.String("cfg", nncp.DefaultCfgPath, "Path to configuration file")
  43                 nodeRaw   = flag.String("node", "", "Process only that node")
  44                 spoolPath = flag.String("spool", "", "Override path to spool")
  45                 logPath   = flag.String("log", "", "Override path to logfile")
  46                 quiet     = flag.Bool("quiet", false, "Print only errors")
  47                 showPrgrs = flag.Bool("progress", false, "Force progress showing")
  48                 omitPrgrs = flag.Bool("noprogress", false, "Omit progress showing")
  49                 debug     = flag.Bool("debug", false, "Print debug messages")
  50                 version   = flag.Bool("version", false, "Print version information")
  51                 warranty  = flag.Bool("warranty", false, "Print warranty information")
  52         )
  53         log.SetFlags(log.Lshortfile)
  54         flag.Usage = usage
  55         flag.Parse()
  56         if *warranty {
  57                 fmt.Println(nncp.Warranty)
  58                 return
  59         }
  60         if *version {
  61                 fmt.Println(nncp.VersionGet())
  62                 return
  63         }
  64
  65         ctx, err := nncp.CtxFromCmdline(
  66                 *cfgPath,
  67                 *spoolPath,
  68                 *logPath,
  69                 *quiet,
  70                 *showPrgrs,
  71                 *omitPrgrs,
  72                 *debug,
  73         )
  74         if err != nil {
  75                 log.Fatalln("Error during initialization:", err)
  76         }
  77         ctx.Umask()
  78
  79         var nodeOnly *nncp.Node
  80         if *nodeRaw != "" {
  81                 nodeOnly, err = ctx.FindNode(*nodeRaw)
  82                 if err != nil {
  83                         log.Fatalln("Invalid -node specified:", err)
  84                 }
  85         }
  86
  87 Cycle:
  88         isBad := false
  89         for nodeId, node := range ctx.Neigh {
  90                 if nodeOnly != nil && nodeId != *nodeOnly.Id {
  91                         continue
  92                 }
  93                 if *nock {
  94                         for job := range ctx.JobsNoCK(node.Id) {
  95                                 if _, err = ctx.CheckNoCK(node.Id, job.HshValue, nil); err != nil {
  96                                         pktName := nncp.Base32Codec.EncodeToString(job.HshValue[:])
  97                                         log.Println(filepath.Join(
  98                                                 ctx.Spool,
  99                                                 nodeId.String(),
 100                                                 string(nncp.TRx),
 101                                                 pktName+nncp.NoCKSuffix,
 102                                         ), err)
 103                                         isBad = true
 104                                 }
 105                         }
 106                 } else if !ctx.Check(node.Id) {
 107                         isBad = true
 108                 }
 109         }
 110         if *cycle > 0 {
 111                 time.Sleep(time.Duration(*cycle) * time.Second)
 112                 goto Cycle
 113         }
 114         if isBad {
 115                 os.Exit(1)
 116         }
 117 }