Message 400613 - Python tracker

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Author	vstinner
Recipients	Arfrever, akira, blueyed, iritkatriel, ned.deily, pefu, serhiy.storchaka, vstinner
Date	2021-08-30.14:56:38
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1630335398.52.0.860146249199.issue20658@roundup.psfhosted.org>
In-reply-to

Content
Attached set_unset_env.c program calls putenv("=hello world") and then unsetenv(""). On my Fedora 34 with glibc-2.33-20.fc34.x86_64, putenv() succeed, but unsetenv() fails. --- $ gcc set_unset_env.c -g -o set_unset_env && ./set_unset_env putenv("=hello world") -> hello world ERROR: unsetenv("") failed: [error 22] Invalid argument --- By the way, getenv() fails to find an environment variable if its name is empty: I reimplemented getenv() using the 'environ' variable for my test.

Attached set_unset_env.c program calls putenv("=hello world") and then unsetenv("").

On my Fedora 34 with glibc-2.33-20.fc34.x86_64, putenv() succeed, but unsetenv() fails.
---
$ gcc set_unset_env.c -g -o set_unset_env && ./set_unset_env
putenv("=hello world") -> hello world
ERROR: unsetenv("") failed: [error 22] Invalid argument
---

By the way, getenv() fails to find an environment variable if its name is empty: I reimplemented getenv() using the 'environ' variable for my test.

History
Date	User	Action	Args
2021-08-30 14:56:38	vstinner	set	recipients: + vstinner, pefu, blueyed, ned.deily, Arfrever, akira, serhiy.storchaka, iritkatriel
2021-08-30 14:56:38	vstinner	set	messageid: <1630335398.52.0.860146249199.issue20658@roundup.psfhosted.org>
2021-08-30 14:56:38	vstinner	link	issue20658 messages
2021-08-30 14:56:38	vstinner	create