Port libminijail unit tests to C++.
That way they can be run on Android Platform Continuous Testing,
which requires gtest for parsing of test output.
Fix one issue in free_label_strings(), which was not setting
|labels->count| to 0. Also fix some nits in test files.
Bug: 30973585
Change-Id: I8bdb414329aab82e2180d412b9ecc128beab7227
diff --git a/libminijail-private.h b/libminijail-private.h
index eafcdf5..926559f 100644
--- a/libminijail-private.h
+++ b/libminijail-private.h
@@ -10,6 +10,10 @@
#ifndef LIBMINIJAIL_PRIVATE_H
#define LIBMINIJAIL_PRIVATE_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
/* Explicitly declare exported functions so that -fvisibility tricks
* can be used for testing and minimal symbol leakage occurs.
*/
@@ -83,4 +87,8 @@
*/
extern void minijail_preenter(struct minijail *j);
+#ifdef __cplusplus
+}; /* extern "C" */
+#endif
+
#endif /* !LIBMINIJAIL_PRIVATE_H */