next portion of selinux updates: chcon, runcon. From

Yuichi Nakamura <himainu-ynakam@miomio.jp>  
KaiGai Kohei <busybox@kaigai.gr.jp>

2 files changed, 31 insertions, 0 deletions

diff --git a/libbb/Kbuild b/libbb/Kbuild
index a53b17f44..ffded6a68 100644
--- a/libbb/Kbuild
+++ b/libbb/Kbuild
@@ -106,6 +106,7 @@ lib-$(CONFIG_SU) += correct_password.o
 lib-$(CONFIG_LOGIN) += correct_password.o
 lib-$(CONFIG_DF) += find_mount_point.o
 lib-$(CONFIG_MKFS_MINIX) += find_mount_point.o
+lib-$(CONFIG_SELINUX) += selinux_common.o
 
 # We shouldn't build xregcomp.c if we don't need it - this ensures we don't
 # require regex.h to be in the include dir even if we don't need it thereby
diff --git a/libbb/selinux_common.c b/libbb/selinux_common.c
new file mode 100644
index 000000000..70d63a465
--- /dev/null
+++ b/libbb/selinux_common.c
@@ -0,0 +1,30 @@
+/*
+ * libbb/selinux_common.c
+ *   -- common SELinux utility functions
+ * 
+ * Copyright 2007 KaiGai Kohei <kaigai@kaigai.gr.jp>
+ */
+#include "busybox.h"
+#include <selinux/context.h>
+
+context_t set_security_context_component(security_context_t cur_context,
+					 char *user, char *role, char *type, char *range)
+{
+	context_t con = context_new(cur_context);
+	if (!con)
+		return NULL;
+
+	if (user && context_user_set(con, user))
+		goto error;
+	if (type && context_type_set(con, type))
+		goto error;
+	if (range && context_range_set(con, range))
+		goto error;
+	if (role && context_role_set(con, role))
+		goto error;
+	return con;
+
+error:
+	context_free(con);
+	return NULL;
+}