Add supplementary groups to user environment

1 files changed, 36 insertions, 0 deletions

diff --git a/cpukit/libcsupport/src/uenvgetgroups.c b/cpukit/libcsupport/src/uenvgetgroups.c
new file mode 100644
index 0000000000..9645a9618b
--- /dev/null
+++ b/cpukit/libcsupport/src/uenvgetgroups.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ * embedded brains GmbH
+ * Dornierstr. 4
+ * D-82178 Puchheim
+ * Germany
+ * <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/userenv.h>
+#include <rtems.h>
+
+#include <sys/types.h>
+#include <unistd.h>
+
+void rtems_current_user_env_getgroups(void)
+{
+  rtems_user_env_t *uenv = rtems_current_user_env_get();
+  int ngroups = (int) RTEMS_ARRAY_SIZE( uenv->groups );
+
+  ngroups = getgroups( ngroups, &uenv->groups[ 0 ] );
+  if ( ngroups > 0 ) {
+    uenv->ngroups = (size_t) ngroups;
+  } else {
+    uenv->ngroups = 0;
+  }
+}