1 files changed, 52 insertions, 0 deletions
diff --git a/lib/util/setgroups.c b/lib/util/setgroups.c
new file mode 100644
index 0000000..f424ddb
--- /dev/null
+++ b/lib/util/setgroups.c
@@ -0,0 +1,52 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2011-2012, 2014-2016 Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This is an open source non-commercial project. Dear PVS-Studio, please check it.
+ * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <errno.h>
+#include <grp.h>
+#include <limits.h>
+
+#include "sudo_compat.h"
+#include "sudo_debug.h"
+#include "sudo_util.h"
+
+int
+sudo_setgroups_v1(int ngids, const GETGROUPS_T *gids)
+{
+    int maxgids, ret;
+    debug_decl(sudo_setgroups, SUDO_DEBUG_UTIL);
+
+    ret = setgroups(ngids, (GETGROUPS_T *)gids);
+    if (ret == -1 && errno == EINVAL) {
+	/* Too many groups, try again with fewer. */
+	maxgids = (int)sysconf(_SC_NGROUPS_MAX);
+	if (maxgids == -1)
+	    maxgids = NGROUPS_MAX;
+	if (ngids > maxgids)
+	    ret = setgroups(maxgids, (GETGROUPS_T *)gids);
+    }
+    debug_return_int(ret);
+}