Scanscript

Un script sympa pour scanner les réseau aux alentours en ssh

• cd /bin
• wget http://www.dwc.za.net/files/other/scanscript
• chmod +x scanscript
• cd
• scanscript

vous pouvez aussi faire en ssh :

• wl scan ; sleep 1 ; wl scanresults

#!/usr/bin/awk -f
#
# REFERENTIAL CREDITS:
# A large portion of this code is identical to, or derived from
# Justin Jones's WRT scanner and this project would not have been
# possible without his public contribution.
# His code has been optimized [modified] extensively by FragtioN of
# www.jawug.za.net, specifically for the wireless comunity therein.
#
# TODO:
# - Once(if) signal for a node can no longer be obtined, that node will
#   be omitted from the list in the next display update to enable a more
#   'live' list which, in turn, will save some space in the display window,
#   as well as help avoid confusion... [suggested by: Setsquare]
#
# CHANGES:
# 19/01/2006
# - Credits 'optimizations'... [inspired by: Setsquare]
# 07/01/2006
# - Optimized the UI (everything nicely lined up now (I hope)).
# - Added SNR display; please report any bugs you may encounter with this addition.
# - General code optimizations and fixes to some bugs in Justin's code, namely:
#   - Fixed a problem that would cause Ad-Hoc networks to be displayed incorrectly.
#

BEGIN {
 IGNORECASE = 1;
 command = "wl scan 2> /dev/null ; wl scanresults 2> /dev/null";
 red = "\x1b[31m";              green = "\x1b[32m";
 greenback="\x1b[42m";          yellow = "\x1b[33m";
 cyan = "\x1b[36m";             blue = "\x1b[34m";
 blueback = "\x1b[44m";         white = "\x1b[37m";
 whiteback = "\x1b[47m";        reset = "\x1b[0m";
 underscore = "\x1b[4m";        clear = "\x1b[2J";
 home = "\x1b[0;0H";            erase2end = "\x1b[K";
 cName = white;                 cSignal = green;
 cNoise = red;                  cCaps = green;
 cRssi = green;
 cSnr = yellow;
 cChannel = white;
 cType = white;
 cStrengthLow = blue blueback;
 cStrengthMed = white whiteback;
 cStrengthHi = green greenback;
 cStrengthAged = red;

 print clear;
 for( ;; )
 {
  while (command|getline)
  {
  if(/^SSID/) { cn = $2 ; name[cn] = cn;  rssi[cn] = $6 ; noise[cn] = $9 }
  if(/^Mode/) {
    if(/Ad Hoc/) {
      rssi[cn] = $5 ; noise[cn] = $8 ; channel[cn] = $11
    }
    else {
      rssi[cn] = $4 ; noise[cn] = $7 ; channel[cn] = $10
    }
  }
  if(/^BSSID/) { caps[cn] = $4" "$5" "$6" "$7" "$8" "$9" "$10 }
  }
  close(command)
  printf home;
  ln = 0;
  print white "WRT awk wl Live Scanner v1.0b by FragtioN -- http://www.jawug.za.net/WRTScanScript\n";
  print white "SSID       RSSI  NOISE SNR   CHANNEL  TYPE";
  for (x in name)
  {
        {
        snr = (-1*(noise[x] - rssi[x]));
        sigstrength = ((rssi[x] - noise[x])*1.5) + ((rssi[x] +90)*1.5);
        if (sigstrength 4) cStrength = cStrengthMed;
        if(sigstrength>7) cStrength = cStrengthHi;
        if(age[x]=0) cStrength = cStrengthAged;

        fmt = "%s%-15s %s%0"sigstrength"d "reset erase2end "\n           %s%-4d  %s%-4d  %s%-4d  %s%2s       %s%10s "  reset erase2end "\n" erase2end "\n";
        printf fmt,cName,name[x],cStrength,0,cRssi,rssi[x],cNoise,noise[x],cSnr,snr,cChannel,channel[x],cType,caps[x];

        ln++;
        }
  }
  print erase2end;
 }
}