From 758f820bcc0f68aeebac1717e537ca13a320b909 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:11:47 +0200 Subject: Adding upstream version 9.1. Signed-off-by: Daniel Baumann --- lib/acl-errno-valid.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 lib/acl-errno-valid.c (limited to 'lib/acl-errno-valid.c') diff --git a/lib/acl-errno-valid.c b/lib/acl-errno-valid.c new file mode 100644 index 0000000..a364e41 --- /dev/null +++ b/lib/acl-errno-valid.c @@ -0,0 +1,52 @@ +/* Test whether ACLs are well supported on this system. + + Copyright 2013-2022 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + + Written by Paul Eggert. */ + +#include + +#include + +#include + +/* Return true if errno value ERRNUM indicates that ACLs are well + supported on this system. ERRNUM should be an errno value obtained + after an ACL-related system call fails. */ +bool +acl_errno_valid (int errnum) +{ + /* Recognize some common errors such as from an NFS mount that does + not support ACLs, even when local drives do. */ + switch (errnum) + { + case EBUSY: return false; + case EINVAL: return false; +#if defined __APPLE__ && defined __MACH__ + case ENOENT: return false; +#endif + case ENOSYS: return false; + +#if defined ENOTSUP && ENOTSUP != EOPNOTSUPP +# if ENOTSUP != ENOSYS /* Needed for the MS-Windows port of GNU Emacs. */ + case ENOTSUP: return false; +# endif +#endif + + case EOPNOTSUPP: return false; + default: return true; + } +} -- cgit v1.2.3