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eMule creates incorrect links for files which size is divisible by 9728000 (9500 * 1024) (9.28 MB).
1) I created 3 random files with size of 9728000 bytes. Then I created links for these files using eMule (Shared Files -> Reload):
ed2k://|file|0.bin|9728000|00000000000000000000000000000000|h=BW6PJSPSWQHGXQZM3K34VDVRL4WQSXGN|/
ed2k://|file|1.bin|9728000|00000000000000000000000000000000|h=JTFG3GALWGTNHYQV2LIZTWFWJ2BJHOJ3|/
ed2k://|file|2.bin|9728000|00000000000000000000000000000000|h=5ZAMTHGWQOKYPZ44YBR4ZZLCKEMR5GV5|/
eMule showed only the first file. It thinks that these files are equal.
Then I created links for these files using eMule Link Creator v0.7:
ed2k://|file|0.bin|9728000|A5D6CD16A61D5CE78442C55963D8E3CB|h=BW6PJSPSWQHGXQZM3K34VDVRL4WQSXGN|/
ed2k://|file|1.bin|9728000|AB72B9A2AF56A99792DB4CC002369B9E|h=JTFG3GALWGTNHYQV2LIZTWFWJ2BJHOJ3|/
ed2k://|file|2.bin|9728000|917F93CBA14E62A0AA91BDDF3668F45E|h=5ZAMTHGWQOKYPZ44YBR4ZZLCKEMR5GV5|/
2) For files with size of two or more parts of 9.28 MB, eMule doesn't append MD4 hash of a blank string to the file Hashset.
eMule:
ed2k://|file|3.bin|19456000|54857656761F1EB2A56B90E306976367|h=DNL2GHKFYOV35H2ICMQWOOKIEVP7PAMI|/
eMule Link Creator:
ed2k://|file|3.bin|19456000|AA2D3F8B321065E1C4E45414C9DDEE7F|h=DNL2GHKFYOV35H2ICMQWOOKIEVP7PAMI|/
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V0.70a Incorrect File Links (hashes) Incorrect links for files which size is divisible by 9728000
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#2
- Golden eMule
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- Group: Members
- Posts: 5002
- Joined: 13-May 07
Posted 02 August 2024 - 07:19 PM
Thanks for your investigation and report.
Fix for the issue should be in the next build.
Fix for the issue should be in the next build.
#4
- Splendid Member
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- Group: Members
- Posts: 179
- Joined: 20-March 04
Posted 03 August 2024 - 05:18 PM
fox88, on 03 August 2024 - 06:19 AM, said:
Thanks for your investigation and report.
Fix for the issue should be in the next build.
Fix for the issue should be in the next build.
#5
- Advanced Member
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- Group: Members
- Posts: 77
- Joined: 04-May 23
Posted 04 August 2024 - 02:49 PM
emule_user_downunder, on 03 August 2024 - 08:18 PM, said:
fox88, on 03 August 2024 - 06:19 AM, said:
Thanks for your investigation and report.
Fix for the issue should be in the next build.
Fix for the issue should be in the next build.
This bug is in CKnownFile::CreateFromFile and was introduced in version 0.70a.
This post has been edited by BuyukBang: 04 August 2024 - 02:53 PM
I’m working on a new project based on eMule v0.70b Community Release, planning to release it by the end of 2024. # SCREENSHOTS # List of completed features:
IPv6 Support & UTP NAT Traversal: Enables IPv6 and LowID to LowID transfers between mod users. (Improved version of David Xanatos’s reference implementation)
Client History: Stores and reloads all clients. Enables long-term banning/punishment intervals, tracking suspicious activities, editable client notes, shared files statistics.
Protection Panel: Detects 28 types of bad clients, bans/punishes with 12 levels. Uses customizable text-based definitions within Shield.conf instead of binary DLP.dll.
Blacklist Panel: Keyword-based file blacklisting for search results. Very fast (Processes 850+ definitions on search results under 1 sec).
Download Checker: Skips known/downloaded/canceled downloads automatically by checking file name similarities and file hashes.
Files List: Lists and categorizes all known files and duplicate files. Fast loading (Loads 200k items under 1 sec).
GeoLite2: Replaced legacy IP2Country, supports IPv6, lists both cities and countries.
Several Connection Tweaks: A fast and reliable connection checker; retry failed TCP connection attempts; reask sources & inform queued clients after IP change.
Empty Fake File & DRM Detection: Automatically removes trash files from the download list.
Fast Kad: Provides much faster KAD searches comparable to eServer search speed.
Auto Query Shared Files: A new way of finding files!
Highly Responsive GUI, Automatic File Extension Correction, Automatic & Manual Saving All App Data, Added Column Filters To All Lists, Intelligent Chunk Selection, Client Emulation, Selectable Credit Systems, Save & Load File Sources, And many more additional features, bug fixes and optimizations…
To do: IPv6 support for KAD, NAT-T support for eServer, Dark Mode, more...
IPv6 Support & UTP NAT Traversal: Enables IPv6 and LowID to LowID transfers between mod users. (Improved version of David Xanatos’s reference implementation)
Client History: Stores and reloads all clients. Enables long-term banning/punishment intervals, tracking suspicious activities, editable client notes, shared files statistics.
Protection Panel: Detects 28 types of bad clients, bans/punishes with 12 levels. Uses customizable text-based definitions within Shield.conf instead of binary DLP.dll.
Blacklist Panel: Keyword-based file blacklisting for search results. Very fast (Processes 850+ definitions on search results under 1 sec).
Download Checker: Skips known/downloaded/canceled downloads automatically by checking file name similarities and file hashes.
Files List: Lists and categorizes all known files and duplicate files. Fast loading (Loads 200k items under 1 sec).
GeoLite2: Replaced legacy IP2Country, supports IPv6, lists both cities and countries.
Several Connection Tweaks: A fast and reliable connection checker; retry failed TCP connection attempts; reask sources & inform queued clients after IP change.
Empty Fake File & DRM Detection: Automatically removes trash files from the download list.
Fast Kad: Provides much faster KAD searches comparable to eServer search speed.
Auto Query Shared Files: A new way of finding files!
Highly Responsive GUI, Automatic File Extension Correction, Automatic & Manual Saving All App Data, Added Column Filters To All Lists, Intelligent Chunk Selection, Client Emulation, Selectable Credit Systems, Save & Load File Sources, And many more additional features, bug fixes and optimizations…
To do: IPv6 support for KAD, NAT-T support for eServer, Dark Mode, more...
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