class.linux.inc.php

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            unset($results[$file]['capacity']);
          } 
          fclose($fd);
        } 
      } 
    } 
    closedir($handle);

    asort($results);
    return $results;
  } 

  function scsi () {
    $results = array();
    $dev_vendor = '';
    $dev_model = '';
    $dev_rev = '';
    $dev_type = '';
    $s = 1;

    if ($fd = fopen('/proc/scsi/scsi', 'r')) {
      while ($buf = fgets($fd, 4096)) {
        if (preg_match('/Vendor/', $buf)) {
          preg_match('/Vendor: (.*) Model: (.*) Rev: (.*)/i', $buf, $dev);
          list($key, $value) = split(': ', $buf, 2);
          $dev_str = $value;
          $get_type = 1;
          continue;
        } 

        if ($get_type) {
          preg_match('/Type:\s+(\S+)/i', $buf, $dev_type);
          $results[$s]['model'] = "$dev[1] $dev[2] ($dev_type[1])";
          $results[$s]['media'] = "Hard Disk";
          $s++;
          $get_type = 0;
        } 
      } 
    } 
    asort($results);
    return $results;
  } 

  function usb () {
    $results = array();
    $devstring = 0;
    $devnum = -1;

    if ($fd = fopen('/proc/bus/usb/devices', 'r')) {
      while ($buf = fgets($fd, 4096)) {
        if (preg_match('/^T/', $buf)) {
          $devnum += 1;
        } 
        if (preg_match('/^S/', $buf)) {
          $devstring = 1;
        } 

        if ($devstring) {
          list($key, $value) = split(': ', $buf, 2);
          list($key, $value2) = split('=', $value, 2);
          $results[$devnum] .= " " . trim($value2);
          $devstring = 0;
        } 
      } 
    } 
    return $results;
  } 

  function sbus () {
    $results = array();
    $_results[0] = ""; 
    // TODO. Nothing here yet. Move along.
    $results = $_results;
    return $results;
  } 

  function network () {
    $results = array();

    if ($fd = fopen('/proc/net/dev', 'r')) {
      while ($buf = fgets($fd, 4096)) {
        if (preg_match('/:/', $buf)) {
          list($dev_name, $stats_list) = preg_split('/:/', $buf, 2);
          $stats = preg_split('/\s+/', trim($stats_list));
          $results[$dev_name] = array();

          $results[$dev_name]['rx_bytes'] = $stats[0];
          $results[$dev_name]['rx_packets'] = $stats[1];
          $results[$dev_name]['rx_errs'] = $stats[2];
          $results[$dev_name]['rx_drop'] = $stats[3];

          $results[$dev_name]['tx_bytes'] = $stats[8];
          $results[$dev_name]['tx_packets'] = $stats[9];
          $results[$dev_name]['tx_errs'] = $stats[10];
          $results[$dev_name]['tx_drop'] = $stats[11];

          $results[$dev_name]['errs'] = $stats[2] + $stats[10];
          $results[$dev_name]['drop'] = $stats[3] + $stats[11];
        } 
      } 
    } 
    return $results;
  } 

  function memory () {
    if ($fd = fopen('/proc/meminfo', 'r')) {
      $results['ram'] = array();
      $results['swap'] = array();
      $results['devswap'] = array();

      while ($buf = fgets($fd, 4096)) {
        if (preg_match('/^MemTotal:\s+(.*)\s*kB/i', $buf, $ar_buf)) {
          $results['ram']['total'] = $ar_buf[1];
        } else if (preg_match('/^MemFree:\s+(.*)\s*kB/i', $buf, $ar_buf)) {
          $results['ram']['free'] = $ar_buf[1];
        } else if (preg_match('/^Cached:\s+(.*)\s*kB/i', $buf, $ar_buf)) {
          $results['ram']['cached'] = $ar_buf[1];
        } else if (preg_match('/^Buffers:\s+(.*)\s*kB/i', $buf, $ar_buf)) {
          $results['ram']['buffers'] = $ar_buf[1];
        } else if (preg_match('/^SwapTotal:\s+(.*)\s*kB/i', $buf, $ar_buf)) {
          $results['swap']['total'] = $ar_buf[1];
        } else if (preg_match('/^SwapFree:\s+(.*)\s*kB/i', $buf, $ar_buf)) {
          $results['swap']['free'] = $ar_buf[1];
        } 
      } 
      $results['ram']['shared'] = 0;
      $results['ram']['used'] = $results['ram']['total'] - $results['ram']['free'];
      $results['swap']['used'] = $results['swap']['total'] - $results['swap']['free'];
      fclose($fd);
      $swaps = file ('/proc/swaps');
      $swapdevs = split("\n", $swaps);

      for ($i = 1; $i < (sizeof($swapdevs) - 1); $i++) {
        $ar_buf = preg_split('/\s+/', $swapdevs[$i], 6);

        $results['devswap'][$i - 1] = array();
        $results['devswap'][$i - 1]['dev'] = $ar_buf[0];
        $results['devswap'][$i - 1]['total'] = $ar_buf[2];
        $results['devswap'][$i - 1]['used'] = $ar_buf[3];
        $results['devswap'][$i - 1]['free'] = ($results['devswap'][$i - 1]['total'] - $results['devswap'][$i - 1]['used']);
        $results['devswap'][$i - 1]['percent'] = round(($ar_buf[3] * 100) / $ar_buf[2]);
      } 
      // I don't like this since buffers and cache really aren't
      // 'used' per say, but I get too many emails about it.
      $results['ram']['t_used'] = $results['ram']['used'];
      $results['ram']['t_free'] = $results['ram']['total'] - $results['ram']['t_used'];
      $results['ram']['percent'] = round(($results['ram']['t_used'] * 100) / $results['ram']['total']);
      $results['swap']['percent'] = round(($results['swap']['used'] * 100) / $results['swap']['total']);
    } else {
      $results['ram'] = array();
      $results['swap'] = array();
      $results['devswap'] = array();
    } 
    return $results;
  } 

  function filesystems () {
    $df = execute_program('df', '-kP');
    $mounts = split("\n", $df);
    $fstype = array();

    if ($fd = fopen('/proc/mounts', 'r')) {
      while ($buf = fgets($fd, 4096)) {
        list($dev, $mpoint, $type) = preg_split('/\s+/', trim($buf), 4);
        $fstype[$mpoint] = $type;
        $fsdev[$dev] = $type;
      } 
      fclose($fd);
    } 

    for ($i = 1, $max = sizeof($mounts); $i < $max; $i++) {
      $ar_buf = preg_split('/\s+/', $mounts[$i], 6);

      $results[$i - 1] = array();

      $results[$i - 1]['disk'] = $ar_buf[0];
      $results[$i - 1]['size'] = $ar_buf[1];
      $results[$i - 1]['used'] = $ar_buf[2];
      $results[$i - 1]['free'] = $ar_buf[3];
      $results[$i - 1]['percent'] = round(($results[$i - 1]['used'] * 100) / $results[$i - 1]['size']) . '%';
      $results[$i - 1]['mount'] = $ar_buf[5];
      ($fstype[$ar_buf[5]]) ? $results[$i - 1]['fstype'] = $fstype[$ar_buf[5]] : $results[$i - 1]['fstype'] = $fsdev[$ar_buf[0]];
    } 
    return $results;
  } 

  function distro () {
   if ($fd = fopen('/etc/debian_version', 'r')) {
      $buf = fgets($fd, 1024);
      fclose($fd);
      $result = 'Debian ' . trim($buf);
   } elseif ($fd = fopen('/etc/SuSE-release', 'r')) {
      $buf = fgets($fd, 1024);
      fclose($fd);
      $result = trim($buf);
   } elseif ($fd = fopen('/etc/mandrake-release', 'r')) {
      $buf = fgets($fd, 1024);
      fclose($fd);
      $result = trim($buf);
   } elseif ($fd = fopen('/etc/fedora-release', 'r')) {
      $buf = fgets($fd, 1024);
      fclose($fd);
      $result = trim($buf);
   } elseif ($fd = fopen('/etc/redhat-release', 'r')) {
      $buf = fgets($fd, 1024);
      fclose($fd);
      $result = trim($buf);
   } elseif ($fd = fopen('/etc/gentoo-release', 'r')) {
      $buf = fgets($fd, 1024);
      fclose($fd);
      $result = trim($buf);
   } elseif ($fd = fopen('/etc/slackware-version', 'r')) {
      $buf = fgets($fd, 1024);
      fclose($fd);
      $result = trim($buf);
   } elseif ($fd = fopen('/etc/eos-version', 'r')) {
      $buf = fgets($fd, 1024);
      fclose($fd);
      $result = trim($buf);
   } elseif ($fd = fopen('/etc/trustix-release', 'r')) {
      $buf = fgets($fd, 1024);
      fclose($fd);
      $result = trim($buf);
   } elseif ($fd = fopen('/etc/arch-release', 'r')) {
      $buf = fgets($fd, 1024);
      fclose($fd);
      $result = trim($buf);
   } else {
      $result = 'N.A.';
   }
   return $result;
  }

  function distroicon () {   
   if (file_exists('/etc/debian_version')) {
      $result = 'Debian.gif';
   } elseif (file_exists('/etc/SuSE-release')) {
      $result = 'Suse.gif';
   } elseif (file_exists('/etc/mandrake-release')) {
      $result = 'Mandrake.gif';
   } elseif (file_exists('/etc/fedora-release')) {
      $result = 'Fedora.gif';
   } elseif (file_exists('/etc/redhat-release')) {
      $result = 'Redhat.gif';
   } elseif (file_exists('/etc/gentoo-release')) {
      $result = 'Gentoo.gif';
   } elseif (file_exists('/etc/slackware-version')) {
      $result = 'Slackware.gif';
   } elseif (file_exists('/etc/eos-version')) {
      $result = 'free-eos.gif';
   } elseif (file_exists('/etc/trustix-release')) {
      $result = 'Trustix.gif';
   } elseif (file_exists('/etc/arch-release')) {
      $result = 'Arch.gif';
   } else {
      $result = 'xp.gif';
   }
   return $result;
  }

}