[PATCH v2] setfiles: clarify documented path resolution behaviour

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One thing that confused me when investigating
https://github.com/SELinuxProject/selinux/issues/248 (i.e.
https://github.com/coreos/fedora-coreos-tracker/issues/512) was that the
manual page for `setfiles` seemed to imply that paths were fully
resolved. This was consistent with the issues above where `setfiles` was
failing because the target of the symbolic link didn't exist.

But in fact, the wording around symbolic links in
`setfiles`/`restorecon` refers actually to whether the parent
directories are canonicalized via `realpath(3)` before labeling.

Clarify the man pages to explain this.

Signed-off-by: Jonathan Lebon <jlebon@xxxxxxxxxx>
---
 policycoreutils/setfiles/restorecon.8 | 6 ++++--
 policycoreutils/setfiles/setfiles.8   | 3 ++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/policycoreutils/setfiles/restorecon.8 b/policycoreutils/setfiles/restorecon.8
index bbfc83fe..1a785258 100644
--- a/policycoreutils/setfiles/restorecon.8
+++ b/policycoreutils/setfiles/restorecon.8
@@ -159,8 +159,10 @@ The pathname for the file(s) to be relabeled.
 .SH "NOTES"
 .IP "1." 4
 .B restorecon
-does not follow symbolic links and by default it does not
-operate recursively on directories.
+by default does not operate recursively on directories. Paths leading up the
+final component of the file(s) are canonicalized using
+.BR realpath (3)
+before labeling.
 .IP "2." 4
 If the
 .I pathname
diff --git a/policycoreutils/setfiles/setfiles.8 b/policycoreutils/setfiles/setfiles.8
index 0188a75a..e328a562 100644
--- a/policycoreutils/setfiles/setfiles.8
+++ b/policycoreutils/setfiles/setfiles.8
@@ -214,7 +214,8 @@ option is used.
 .SH "NOTES"
 .IP "1." 4
 .B setfiles
-follows symbolic links and operates recursively on directories.
+operates recursively on directories. Paths leading up the final
+component of the file(s) are not canonicalized before labeling.
 .IP "2." 4
 If the
 .I pathname
-- 
2.26.2




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