diff options
Diffstat (limited to 'doc/lispref/files.texi')
| -rw-r--r-- | doc/lispref/files.texi | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/doc/lispref/files.texi b/doc/lispref/files.texi index 614bd827489..05eca6417fe 100644 --- a/doc/lispref/files.texi +++ b/doc/lispref/files.texi @@ -1480,7 +1480,7 @@ with @code{add-name-to-file} and then deleting @var{filename} has the same effect as renaming, aside from momentary intermediate states. @end deffn -@deffn Command copy-file oldname newname &optional ok-if-exists time preserve-uid-gid +@deffn Command copy-file oldname newname &optional ok-if-exists time preserve-uid-gid preserve-selinux This command copies the file @var{oldname} to @var{newname}. An error is signaled if @var{oldname} does not exist. If @var{newname} names a directory, it copies @var{oldname} into that directory, @@ -1501,6 +1501,19 @@ usually set to the user running Emacs). If @var{preserve-uid-gid} is non-@code{nil}, we attempt to copy the user and group ownership of the file. This works only on some operating systems, and only if you have the correct permissions to do so. + +@cindex SELinux +If the optional argument @var{preserve-selinux} is non-@code{nil}, we +attempt to copy the SELinux@footnote{@samp{Security-Enhanced Linux} +is a kernel feature that allows for finer access controls to be set on +files, and a system security policy to define who can access what. +The functions @code{file-selinux-context} and @code{set-file-selinux-context} +get and set, respectively, the SELinux properties of a file.} +context of the file. For this to work, Emacs must have been built +with libselinux support. + +Functions like @code{backup-buffer} use these optional arguments +to preserve information about their input files. @end deffn @deffn Command make-symbolic-link filename newname &optional ok-if-exists |