Go Back   FlashFXP Forums > > > >

ioFTPD General New releases, comments, questions regarding the latest version of ioFTPD.

Reply
 
Thread Tools Rate Thread Display Modes
Old 06-02-2004, 08:11 AM   #1
darkone
Disabled
FlashFXP Registered User
ioFTPD Administrator
 
darkone's Avatar
 
Join Date: Dec 2001
Posts: 2,230
Default Random crashes & broken .ioFTPD files

Ugh,

there was no such thing as broken .ioFTPD file... fault was in .ioFTPD file reader. When size of block in .ioFTPD file (used for chattr & by some scripts) grows larger than 1024 32bit uints (4096bytes ), daemon re-allocates larger memory block. After reallocation, I had forgot to update the pointer. When reallocating memory, you need to store everything to temporary pointer.. and contents of temporary pointer are moved to real pointer, if reallocation is successful. Now that it kept using the old pointer that was no longer valid, it caused immediate memory corruption and buffer overrun.

I will be releasing patch within a few weeks.
darkone is offline   Reply With Quote
Reply

Tags
.ioftpd, file, larger, memory, pointer

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 03:18 PM.

Parts of this site powered by vBulletin Mods & Addons from DragonByte Technologies Ltd. (Details)