mailing list of musl libc
 help / color / mirror / code / Atom feed
From: Yuri Kanivetsky <yuri.kanivetsky@gmail.com>
To: musl@lists.openwall.com
Subject: [musl] faccessat() always return EPERM
Date: Sat, 24 Jul 2021 04:16:25 +0300	[thread overview]
Message-ID: <CAMhVC3ZwQdPK76Nw2QCc787wD=CN4XixJ1J6YbidhPBt5T-v6g@mail.gmail.com> (raw)

Hi,

I'm not sure that it has something to do with musl. But experienced in
a Alpine Linux docker container (ruby:2.6-alpine3.14) on Debian 9 or
10. I can't reproduce it with Alpine Linux 3.13 (container) or Debian
8 (host).

For example, the following program outputs -1:

#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>

int main()
{
    int r;
    r = faccessat(AT_FDCWD, "/", R_OK, AT_EACCESS);
    printf("%i", r);
    return 0;
}

I believe whatever is passed as the second parameter, it would return -1.

As a result at least irb and bundler doesn't work. Is this some sort
of binary incompatibility with Linux kernel?

Regards,
Yuri

             reply	other threads:[~2021-07-24  1:18 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-24  1:16 Yuri Kanivetsky [this message]
2021-07-24  1:40 ` Rich Felker
2021-07-24  5:56   ` Rich Felker
2021-07-24 23:36   ` Alex Xu (Hello71)
2021-07-27  4:34     ` Yuri Kanivetsky
2021-07-24  1:56 ` Wolf

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CAMhVC3ZwQdPK76Nw2QCc787wD=CN4XixJ1J6YbidhPBt5T-v6g@mail.gmail.com' \
    --to=yuri.kanivetsky@gmail.com \
    --cc=musl@lists.openwall.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.vuxu.org/mirror/musl/

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).