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From: Tommy <tommyskypromax@gmail.com>
To: musl@lists.openwall.com
Subject: [musl] The `sigpause` function behavior does not fully comply with the POSIX specification
Date: Sun, 8 Jun 2025 16:38:51 +0800	[thread overview]
Message-ID: <CAMdrHjB9ecQas6GD=1S9AGmdXfC3FQGet3YtQXyt8QG3C6T=wQ@mail.gmail.com> (raw)

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Hello:
I noticed this commit.
-->
https://git.musl-libc.org/cgit/musl/commit/src/signal/sigpause.c?id=06c5e4e832f4796be02c743270fb554f978de02c

This commit changed the behavior of `sigpause`. When I passed an invalid
`sig` value, the `sigdelset` function returned -1 and set the error code to
EINVAL, which caused `sigpause` to return -1 and set the error code to
EINVAL. In the POSIX specification, `sigpause` can only return -1 if it
returns, and set the error code to `EINTR` (see
https://man7.org/linux/man-pages/man3/sigpause.3.html#RETURN_VALUE). Maybe
the current behavior of the `sigpause` function violates the POSIX
specification, so I would like to ask if this is a bug.

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             reply	other threads:[~2025-06-08 11:12 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-08  8:38 Tommy [this message]
     [not found] ` <aEWvh5suFabk9EGl@cloudsdale.the-delta.net.eu.org>
     [not found]   ` <f96afb6c-3383-4538-a2c6-e9055365b3b7@koorogi.info>
     [not found]     ` <20250608170923.GM1827@brightrain.aerifal.cx>
     [not found]       ` <3a448a87-4bcb-4c1c-bf78-b3c3d7ee4a29@koorogi.info>
     [not found]         ` <20250608184932.GN1827@brightrain.aerifal.cx>
     [not found]           ` <aEbDlK7qUVEVkTaP@snips.stderr.spb.ru>
2025-06-09 18:15             ` [musl] " Thorsten Glaser

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