From 231a939067eff6cbe688598ee20e8c3dd7dded4a Mon Sep 17 00:00:00 2001
From: Jarkko Sakkinen <jarkko.sakkinen@iki.fi>
Date: Sat, 10 Dec 2011 23:33:28 +0200
Subject: [PATCH] Added smack_set_self_label().

---
 libsmack/libsmack.c  | 17 +++++++++++++++++
 libsmack/sys/smack.h |  7 +++++++
 2 files changed, 24 insertions(+)

diff --git a/libsmack/libsmack.c b/libsmack/libsmack.c
index 1b96524..60ace08 100644
--- a/libsmack/libsmack.c
+++ b/libsmack/libsmack.c
@@ -295,6 +295,23 @@ int smack_new_label_from_socket(int fd, char **label)
 	return 0;
 }
 
+int smack_set_self_label(char *label)
+{
+	int fd;
+
+	fd = open(SELF_LABEL_FILE, O_WRONLY);
+	if (fd < 0)
+		return -1;
+
+	if (write(fd, label, strlen(label)) < 0) {
+		close(fd);
+		return -1;
+	}
+
+	close(fd);
+	return 0;
+}
+
 static int accesses_apply(struct smack_accesses *handle, int clear)
 {
 	char buf[LOAD_LEN + 1];
diff --git a/libsmack/sys/smack.h b/libsmack/sys/smack.h
index d9e1ebf..707edb1 100644
--- a/libsmack/sys/smack.h
+++ b/libsmack/sys/smack.h
@@ -130,6 +130,13 @@ int smack_new_label_from_self(char **label);
   */
 int smack_new_label_from_socket(int fd, char **label);
 
+/*!
+ * Set Smack label for callers process. Requires CAP_MAC_ADMIN.
+ *
+ * @param label new label for callers process
+ */
+int smack_set_self_label(char *label);
+
 #ifdef __cplusplus
 }
 #endif
-- 
2.7.4