#22471 [Opn]: Getting "inflate" buffer error

4u at direct-netware dot de Fri, 28 Feb 2003 01:27:01 -0800

 ID:               22471
 User updated by:  4u at direct-netware dot de
 Reported By:      4u at direct-netware dot de
 Status:           Open
 Bug Type:         Zlib Related
 Operating System: WinNT
 PHP Version:      4.3.1
 New Comment:


Error in "possible fix script":

Bogus:
$direct_tempdata_1string .= gzinflate (@fread
($zipp,$direct_tempdata_2string));

New:
$direct_tempdata_1string .= gzinflate (@fread
($zipp,$direct_tempdata_3string));

Changing bug description: No


Previous Comments:
------------------------------------------------------------------------

[2003-02-28 03:23:18] 4u at direct-netware dot de

>>> Description:

>> Error report from the webware:

BOF

direct WebenginE
Your Community Center

Debug File Service (DFS)
If you find a possible bug then please report it here:
http://www.direct-netware.de/redirect.php?we.itracker

VERSION_DATA:
v1.00.a032802 [ALPHA]

SCRIPT_NAME:
dwe.php

GET_DATA:
s=edocs
a=doc
dsd=3e324cb3b93af;3e324cf65be9c
tf=default
lang=de
uuid=ff0c192690c99cfc962b36ffcc18ae29

POST_DATA:

TIMESTART_DATA:
1046423297 - 0.76239000

DFS_DATA:
0.024875 .:. dWE/dwe.php _main_ (267)
0.025251 .:. dWE/system/global/dwe_dbsystem_mysql_basics.php
-direct_opendb ()- (43) .:. 0.000617
[...]
0.109956 .:. UMF/system/global/direct_zipfile_functions.php
-direct_getzipentry (+zipp,content.xml,0,0,1)- (285)
0.110336 .:. UMF/system/global/direct_zipfile_functions.php
-direct_getzipentries (+zipp,0)-File- (171) .:. 0.000953
0.138688 .:. PHP .:. gzinflate() [<a
href='http://www.php.net/function.gzinflate'>function.gzinflate</a>]:
buffer error (2) .:.
D:\Server\data\www8010\docs\system\global\direct_zipfile_functions.php
(114) .:. 4.3.1 (WINNT) .:. Debug mode 3 security breach warning
0.141387 .:. PHP .:. gzinflate() [<a
href='http://www.php.net/function.gzinflate'>function.gzinflate</a>]:
buffer error (2) .:.
D:\Server\data\www8010\docs\system\global\direct_zipfile_functions.php
(128) .:. 4.3.1 (WINNT) .:. Debug mode 3 security breach warning
0.147579 .:. PHP .:. gzinflate() [<a
href='http://www.php.net/function.gzinflate'>function.gzinflate</a>]:
buffer error (2) .:.
D:\Server\data\www8010\docs\system\global\direct_zipfile_functions.php
(128) .:. 4.3.1 (WINNT) .:. Debug mode 3 security breach warning
0.149777 .:. PHP .:. gzinflate() [<a
href='http://www.php.net/function.gzinflate'>function.gzinflate</a>]:
buffer error (2) .:.
D:\Server\data\www8010\docs\system\global\direct_zipfile_functions.php
(128) .:. 4.3.1 (WINNT) .:. Debug mode 3 security breach warning
0.15207 .:. PHP .:. gzinflate() [<a
href='http://www.php.net/function.gzinflate'>function.gzinflate</a>]:
buffer error (2) .:.
D:\Server\data\www8010\docs\system\global\direct_zipfile_functions.php
(128) .:. 4.3.1 (WINNT) .:. Debug mode 3 security breach warning
0.156753 .:. PHP .:. gzinflate() [<a
href='http://www.php.net/function.gzinflate'>function.gzinflate</a>]:
buffer error (2) .:.
D:\Server\data\www8010\docs\system\global\direct_zipfile_functions.php
(128) .:. 4.3.1 (WINNT) .:. Debug mode 3 security breach warning
0.159024 .:. PHP .:. gzinflate() [<a
href='http://www.php.net/function.gzinflate'>function.gzinflate</a>]:
buffer error (2) .:.
D:\Server\data\www8010\docs\system\global\direct_zipfile_functions.php
(128) .:. 4.3.1 (WINNT) .:. Debug mode 3 security breach warning
0.111974 .:. UMF/system/global/direct_zipfile_functions.php
-direct_getzipdata (s,+zipp,4881,5656,1)- (107) .:. 0.04771
0.160127 .:. UMF/system/global/direct_zipfile_functions.php
-direct_closezip (+zipp)- (41)
0.161286 .:. UMF/system/global/direct_basics.php -direct_require
(oset/default/global/errors.dwe_oset.php)- (467)
[...]
0.210714 .:. UMF/system/global/direct_basics.php -direct_exit ()-
(449)

TIMEEND_DATA:
1046423298 - 0.94910700

REMOTE_DATA:
[...]

EOF

The following lines are causing the above error report:
[Variable names are changed for a better overview)

> Original:

  if ($tcompressed) { $direct_tempdata_1string = gzinflate (@fread
($zipp,$tlength)); }
  else { $direct_tempdata_1string = @fread ($zipp,$tlength); }

> Possible fix (unsuccessful):

  if ($tcompressed)
  {
   $direct_tempdata_1string = "";
   $direct_tempdata_2string = 0;

   do
   {
    if (($tlength - $direct_tempdata_2string) > 999) {
$direct_tempdata_3string = 1000; }
    else { $direct_tempdata_3string = ($tlength -
$direct_tempdata_2string); }

    $direct_tempdata_2string += $direct_tempdata_3string;
    $direct_tempdata_1string .= gzinflate (@fread
($zipp,$direct_tempdata_2string));
   }
   while ($direct_tempdata_2string < $tlength);
  }
  else { $direct_tempdata_1string = @fread ($zipp,$tlength); }

> Var-Details:
$direct_tempdata_1string = Result string (uncompressed data from a zip
archive)
$direct_tempdata_2string = Bytes already read from the archive
$direct_tempdata_3string = Next byte length to read

I tried to reduce the $direct_tempdata_3string down to 100 byte for
inflating but still getting the buffer error (2) seen in the report
above.

>>> Modules:

Seems to be not required for this bug report

>>> Setup data:

Windows XP
PHP 4.3.1
Apache 2.0.44
MySQL 4.0.9-gamma
Administrative rights: yes

------------------------------------------------------------------------


-- 
Edit this bug report at http://bugs.php.net/?id=22471&edit=1

#22471 [Opn]: Getting "inflate" buffer error

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