https://github.com/dsoprea/go-exfat

exFAT reader implementation based on Microsoft specifications.
https://github.com/dsoprea/go-exfat

exfat filesystem go golang

Last synced: 4 months ago
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exFAT reader implementation based on Microsoft specifications.

• Host: GitHub
• URL: https://github.com/dsoprea/go-exfat
• Owner: dsoprea
• License: mit
• Created: 2019-09-04T19:36:41.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2024-06-02T11:05:52.000Z (11 months ago)
• Last Synced: 2024-12-24T02:32:04.773Z (4 months ago)
• Topics: exfat, filesystem, go, golang
• Language: Go
• Homepage:
• Size: 467 KB
• Stars: 19
• Watchers: 3
• Forks: 3
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# Overview

This is a read-only exFAT implementation based on the Microsoft-published

specs ([exFAT file system specification](https://docs.microsoft.com/en-us/windows/win32/fileio/exfat-specification)).

The primary purpose of this project is to provide an unprivileged API to access

an exFAT filesystem from any platform. This project also provides several tools

that can be used to explore the filesystem and extract files from it.

# Command-Line Tools

- *exfat_list_contents*: List all files with or without complete directory-entry

  information.

- *exfat_extract_file*: Extract a single file to a file or STDOUT. May also be

  used to print all clusters and sectors visited for the extraction.

- *exfat_print_boot_sector_header*: Dump filesystem parameters. Largely sourced

  from the boot-sector header.

# Notes

- All entry-types are parsed as per the requirements of the specification.

  However:

  - Up-case tables, which support case insensitivity, are not read and therefore

    not applied. As a result, all file-operations are case-sensitive (and the

    villagers rejoiced).

  - Allocation bitmaps are not read, so it's not possible to know which clusters

    are or are not used. This is not required for browsing the filesystem or

    reading files.

- Timestamps are accurate to one second.