find: add SELinux support

* find/defs.h: Add SELinux related definitions.
* find/tree.c: Add -context predicate to lookup.
* find/pred.c: Handle %Z printf directive.
* find/parser.c: Parse -context predicate and %Z printf directive.
* find/find.1: Mention -context predicate and %Z printf directive.
* doc/find.texi: Mention -context predicate and %Z printf directive.
* find/Makefile.am: Add SELinux libraries.
* import-gnulib.config: Require module selinux-at and the corresponding
version of gnulib.

Signed-off-by: Kamil Dudka <kdudka@redhat.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/doc/find.texi b/doc/find.texi
index c2c2c03f..8ce1f6fe 100644
--- a/doc/find.texi
+++ b/doc/find.texi
@@ -1261,6 +1261,14 @@ situation.
 
 @end deffn
 
+@deffn Test -context pattern
+True if file's SELinux context matches the pattern @var{pattern}.
+The pattern uses shell glob matching.
+
+This predicate is supported only on @code{find} versions compiled with
+SELinux support and only when SELinux is enabled.
+@end deffn
+
 @node Contents
 @section Contents
 
@@ -1752,6 +1760,7 @@ from the novel you are reading.
 * Size Directives::
 * Location Directives::
 * Time Directives::
+* Other Directives::
 * Formatting Flags::
 @end menu
 
@@ -1909,6 +1918,14 @@ File's last modification time in the format specified by @var{k}
 (@pxref{Time Formats}).
 @end table
 
+@node Other Directives
+@subsubsection Other Directives
+
+@table @code
+@item %Z
+File's SELinux context, or empty string if the file has no SELinux context.
+@end table
+
 @node Time Formats
 @subsection Time Formats