uutils/coreutils

Date rejects valid large years that GNU date accepts

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#9,774 创建于 2025年12月22日

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 (6 评论) (0 反应) (0 负责人)Rust (23,246 star) (1,852 fork)batch import
U - datefuzzinggood first issue

描述

GNU:

  $ LANG=C TZ=UTC0 /usr/bin/date -d "18978-01-01"
  Thu Jan  1 00:00:00 UTC 18978

Rust:

  $ LANG=C TZ=UTC0 ./target/debug/date -d "18978-01-01"
  date: invalid date '18978-01-01'
  • GNU date: Accepts year 18978 and outputs the date correctly
  • Rust date: Rejects year 18978 as invalid date, appears to have a limit around year 9999
  • GNU date supports much larger year ranges than our implementation

Found with a fuzzer

贡献者指南

技术栈
rust
领域
cli
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
fresh
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Rust basicsunderstanding of date parsing
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
75
研究方向
The issue is that the Rust date command rejects years beyond 9999, while GNU date accepts larger years like 18978. Start by locating the date parsing logic in the repository, likely in the 'src/uu/date' directory. Look for where the year range is validated or where a limit like 9999 is set. This might be in the implementation of parsing dates with chrono or custom logic. Compare with GNU's behavior to understand the expected range. Adjust the parsing to accept a wider range of years.
Date rejects valid large years that GNU date accepts · uutils/coreutils#9774 | Good First Issue