ID: 47035
User updated by: valli at icsurselva dot ch
Reported By: valli at icsurselva dot ch
-Status: Closed
+Status: Open
Bug Type: Network related
Operating System: gentoo
PHP Version: 5.2.8
Assigned To: felipe
New Comment:
Hello again,
I just dicovered that the garbage chars not
only appear at the end of a TXT record.
Example:
nslookup -type=TXT 82.19.186.195.aspath.routeviews.org
Returns: text = "13237 3303 44038" "195.186.0.0" "17"
This DNS request returns 3 Strings.
If I do this with dns_get_record the strings are concatenated
(containing a garbage char between the strings)
BTW: Is it really a good idea to concatenate this strings?
Wouldn't it better to return a array containing this strings?
Example: the anwers from routeviews.org are really
hard (if not impossible) to parse in this way:
"13237 3303 44038195.186.0.017"
it would be better in this way:
array("13237 3303 44038","195.186.0.0","17")
Previous Comments:
------------------------------------------------------------------------
[2009-01-08 17:20:39] [email protected]
This bug has been fixed in CVS.
Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
Thank you for the report, and for helping us make PHP better.
Thanks.
------------------------------------------------------------------------
[2009-01-08 10:45:05] [email protected]
Felipe, can you give it a try please?
http://cvs.php.net/viewvc.cgi/php-src/ext/standard/dns.c?r1=1.70.2.7&r2=1.70.2.7.2.7&pathrev=PHP_5_2
------------------------------------------------------------------------
[2009-01-08 09:31:41] valli at icsurselva dot ch
Here's my current workaround:
$rt = @dns_get_record($lookuphost, DNS_ANY);
// workaround for http://bugs.php.net/bug.php?id=47035
if (substr(PHP_VERSION,0,strpos(PHP_VERSION, '-')) == '5.2.8') {
for($i = 0, $rts = sizeof($rt); $i < $rts; ++$i) {
if ($rt[$i]['type'] == 'TXT') {
// remove last byte
$rt[$i]['txt'] = substr($rt[$i]['txt'], 0, -1);
}
}
}
------------------------------------------------------------------------
[2009-01-08 09:07:24] valli at icsurselva dot ch
Description:
------------
The last byte of a TXT record returned by dns_get_record
is garbage.
Reproduce code:
---------------
$rt = dns_get_record('82.19.186.195.countries.blackholes.us',
DNS_TXT);
$txt = $rt[0]['txt'];
print $txt." (".strlen($txt).")\n";
foreach(str_split($txt) as $char) {
print "$char\t".ord($char)."\n";
}
Expected result:
----------------
ch (2)
c 99
h 104
Actual result:
--------------
ch (3)
c 99
h 104
128
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=47035&edit=1
