[PATCH 65/67] aufs pseudo-link helper for symlink

[hooanon05]

From: Junjiro Okajima <hooanon05@xxxxxxxxxxx>

	initial commit
	aufs pseudo-link helper for symlink

Signed-off-by: Junjiro Okajima <hooanon05@xxxxxxxxxxx>
---
 Documentation/filesystems/aufs/aulchown.c |   29 +++++++++++++++++++++++++++++
 1 files changed, 29 insertions(+), 0 deletions(-)

diff --git a/Documentation/filesystems/aufs/aulchown.c b/Documentation/filesystems/aufs/aulchown.c
new file mode 100644
index 0000000..ca20584
--- /dev/null
+++ b/Documentation/filesystems/aufs/aulchown.c
@@ -0,0 +1,29 @@
+
+/*
+ * While this tool should be atomic, I choose loose/rough way.
+ * cf. auplink and aufs.5
+ * $Id: aulchown.c,v 1.1 2007/01/08 02:00:18 sfjro Exp $
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <stdio.h>
+
+int main(int argc, char *argv[])
+{
+	int err, nerr;
+	struct stat st;
+
+	nerr = 0;
+	while (*++argv) {
+		err = lstat(*argv, &st);
+		if (!err && S_ISLNK(st.st_mode))
+			err = lchown(*argv, st.st_uid, st.st_gid);
+		if (!err)
+			continue;
+		perror(*argv);
+		nerr++;
+	}
+	return nerr;
+}
-- 
1.4.4.4

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