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putenv and friends are missing on Windows #2926

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RReverser opened this issue Sep 26, 2022 · 1 comment · Fixed by #2964
Closed

putenv and friends are missing on Windows #2926

RReverser opened this issue Sep 26, 2022 · 1 comment · Fixed by #2964
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C-API-request Category: API request

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@RReverser
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_putenv, _wputenv, _putenv_s, _wputenv_s are currently missing.

They're important because, on Windows, std::env::set_var is implemented via SetEnvironmentVariableW WinAPI, which has a separate table from CRT (libc) implementation. As a result, if you're linking Rust with C code and want C code to see some dynamically set environment variables, putenv and friends are your only option.
@RReverser RReverser added the C-API-request Category: API request label Sep 26, 2022
@RReverser
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More generally, it seems that most of the functions from Process and Environment Control
 page are currently missing.

@devnexen devnexen mentioned this issue Oct 16, 2022
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bors added a commit that referenced this issue Oct 16, 2022
@bors
Auto merge of #2964 - devnexen:win32_putenv, r=JohnTitor
998e886 
adds putenv call to win32.

closes #2926.
@bors bors closed this as completed in 44450fe Oct 16, 2022
tatref pushed a commit to tatref/libc that referenced this issue Mar 20, 2023
@devnexen @tatref
adds putenv call to win32.
81d1d1e 
closes rust-lang#2926.
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adds putenv call to win32. devnexen/libc
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