Warn the user if a file system (NTFS) has not enough claster size for a big container file before the file write
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Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 45/100
- Issue type
- Feature
- Clarity
- Mostly clear
- Activity status
- Active
- Tech stack
- c
- Domain
- backend, operating-systems
Research direction
Start by tracing the container file write path and how VeraCrypt handles file sizes on NTFS, especially the limit described as 2^32 times the cluster size. Check whether current code still allows a write to fail near that limit, then identify how the application could warn before writing. Done means a reliable warning appears before an affected write; the issue names no source files or tests, so first locate the relevant code and coverage.
Written by the indexing model from the issue text.
Description
Desired behavior
The application fails to write the end of the container file in case if the file size bigger than 2^32*<claster-byte-size>. It is an old issue which I've catched in an old VeraCrypt version.
It's may be already not the case. But for a big HDD drive it is an issue, because if you write a 16TB file, then you might could not extend it without a buy another one at least with the same size or bigger.
Your Environment
Please tell us more about your environment
VeraCrypt version:
1.26.7
Operating system and version:
Windows 8
System type:
64-bit
- Dominant language
- C
- Stars
- 11.7k
- Forks
- 1.4k
- Avg merge
- 1d 1h
- Merged PRs (30d)
- 28
Getting set up
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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