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ls: suppress "Permission denied" errors on NFS

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NFS (on Linux 6.12 at least) was seen to return EACCES
from listxattr() for files without read access.
We started using listxattr() in coreutils 9.4.

* src/ls.c (gobble_file): Map EACCES from file_has_aclinfo()
to '?', rather than displaying the error.
* doc/coreutils.texi (ls invocation): Document the '?' flag.
* NEWS: Mention the bug fix.
Addresses https://bugs.gnu.org/74692
This commit is contained in:
Pádraig Brady
2025-01-08 21:46:05 +00:00
parent 6b9e601a97
commit b58e321c8d
3 changed files with 21 additions and 2 deletions
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4
doc/coreutils.texi
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@@ -8084,6 +8084,10 @@ with a security context, but no other alternate access method.
A file with any other combination of alternate access methods
is marked with a @samp{+} character.
@command{ls} uses a @samp{?} character to indicate it is unable to determine
whether alternate access methods apply to the file, which may happen for
example with some NFS setups with files without read permission.
@item -n
@itemx --numeric-uid-gid
@opindex -n