From 18fc03882d49ff46b41a53afc0d6232e1dfbbb35 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Mon, 17 Dec 2018 22:05:49 -0500
Subject: color: Support coloring files with capabilities

---
 util.h | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

(limited to 'util.h')

diff --git a/util.h b/util.h
index e95b67d..7506924 100644
--- a/util.h
+++ b/util.h
@@ -33,10 +33,18 @@
 #	define BFS_HAS_INCLUDE(header, fallback) fallback
 #endif
 
-#define BFS_HAS_MNTENT        BFS_HAS_INCLUDE(<mntent.h>, __GLIBC__)
-#define BFS_HAS_SYS_MKDEV     BFS_HAS_INCLUDE(<sys/mkdev.h>, false)
-#define BFS_HAS_SYS_PARAM     BFS_HAS_INCLUDE(<sys/param.h>, true)
-#define BFS_HAS_SYS_SYSMACROS BFS_HAS_INCLUDE(<sys/sysmacros.h>, __GLIBC__)
+#define BFS_HAS_MNTENT         BFS_HAS_INCLUDE(<mntent.h>, __GLIBC__)
+#define BFS_HAS_SYS_CAPABILITY BFS_HAS_INCLUDE(<sys/capability.h>, __linux__)
+#define BFS_HAS_SYS_MKDEV      BFS_HAS_INCLUDE(<sys/mkdev.h>, false)
+#define BFS_HAS_SYS_PARAM      BFS_HAS_INCLUDE(<sys/param.h>, true)
+#define BFS_HAS_SYS_SYSMACROS  BFS_HAS_INCLUDE(<sys/sysmacros.h>, __GLIBC__)
+
+#if BFS_HAS_SYS_CAPABILITY
+#	include <sys/capability.h>
+#	ifdef CAP_CHOWN
+#		define BFS_HAS_POSIX1E_CAPABILITIES true
+#	endif
+#endif
 
 #if !defined(FNM_CASEFOLD) && defined(FNM_IGNORECASE)
 #	define FNM_CASEFOLD FNM_IGNORECASE
@@ -187,4 +195,11 @@ int bfs_major(dev_t dev);
  */
 int bfs_minor(dev_t dev);
 
+struct BFTW;
+
+/**
+ * Check if a file has a non-trvial capability set.
+ */
+bool bfs_check_capabilities(const struct BFTW *ftwbuf);
+
 #endif // BFS_UTIL_H
-- 
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