From 78b2e81940561069faf7698931a033784f794e40 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sat, 6 Mar 2021 14:48:56 -0800
Subject: [PATCH] nativesdk-glibc: Fall back to faccessat on faccess2 returns
EPERM
Fedora-specific workaround for systemd-nspawn
Upstream-Status: Inappropriate [Distro Specific]
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
sysdeps/unix/sysv/linux/faccessat.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/sysdeps/unix/sysv/linux/faccessat.c b/sysdeps/unix/sysv/linux/faccessat.c
index 13160d3249..ee3ddc9b79 100644
--- a/sysdeps/unix/sysv/linux/faccessat.c
+++ b/sysdeps/unix/sysv/linux/faccessat.c
@@ -30,7 +30,11 @@ __faccessat (int fd, const char *file, int mode, int flag)
#if __ASSUME_FACCESSAT2
return ret;
#else
- if (ret == 0 || errno != ENOSYS)
+ /* Fedora-specific workaround:
+ As a workround for a broken systemd-nspawn that returns
+ EPERM when a syscall is not allowed instead of ENOSYS
+ we must check for EPERM here and fall back to faccessat. */
+ if (ret == 0 || !(errno == ENOSYS || errno == EPERM))
return ret;
if (flag & ~(AT_SYMLINK_NOFOLLOW | AT_EACCESS))