gpg 2.3+ may display garbled characters for date and time in non-English Windows
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	darkthread.gpg
	Sep 28 2023, 4:58 PM

Description

In gpg version 2.3, the setlocale (LC_TIME, ""); function was added for the Windows platform to display the corresponding format and language based on user settings. However, in non-English Windows such as Chinese, the Unicode characters included in the date and time may become garbled.

According to the[[ https://learn.microsoft.com/zh-tw/cpp/c-runtime-library/reference/setlocale-wsetlocale?view=msvc-170#utf-8-support | Microsoft documentation ]], starting from Windows 10 version 1803 (10.0.17134.0), setlocale(LC_ALL, ".UTF8") can use the current default Windows ANSI code page (ACP) for the locale and UTF-8 for the code page.

Suggestion:
It is recommended to change the code from asctimestamp (u32 stamp) / # if HAVE_W32_SYSTEM / setlocale(LC_TIME, "") to setlocale(LC_TIME, ".UTF8").

Details

Version: 2.4.3

Revisions and Commits

rG GnuPG
	rG678c81902750 w32: Use utf8 for the asctimestamp function.
	rGad2d578cba86 w32: Use utf8 for the asctimestamp function.

Related Objects
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Status	Assigned	Task
Resolved	• werner	T4417 Work needed for gnupg 2.3
Resolved	• werner	T4398 Rework Console and command line handling on Windows
Resolved	• werner	T4365 Encoding problem: gpg truncates multibyte characters in interactive prompts on Windows
Resolved	• werner	T6741 gpg 2.3+ may display garbled characters for date and time in non-English Windows

Event Timeline

darkthread.gpg created this task.Sep 28 2023, 4:58 PM

Thanks for the report and the helpful suggestion. I was anyway about to change the time format but your suggestion is better.

• werner added a parent task: T4365: Encoding problem: gpg truncates multibyte characters in interactive prompts on Windows.Oct 2 2023, 2:51 PM

Do you have any hint how I can test this? I installed Chinese-Simplified (zh_CN) but I fear switching the display Language. Maybe I should just use _wasctime and convert to utf8

• werner triaged this task as Normal priority.Oct 6 2023, 11:27 AM

• werner added a project: i18n.

Here is my code to test differences between setlocale(LC_TIME, ".UTF8") and setlocale(LC_TIME, "") and the results on English, Japanese and Korea Windows.