1 files changed, 77 insertions, 0 deletions
diff --git a/src/preload.c b/src/preload.c
new file mode 100644
index 0000000..e18cc95
--- /dev/null
+++ b/src/preload.c
@@ -0,0 +1,77 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2010, 2011, 2013 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>
+
+#ifdef HAVE_GSS_KRB5_CCACHE_NAME
+# if defined(HAVE_GSSAPI_GSSAPI_KRB5_H)
+#  include <gssapi/gssapi.h>
+#  include <gssapi/gssapi_krb5.h>
+# elif defined(HAVE_GSSAPI_GSSAPI_H)
+#  include <gssapi/gssapi.h>
+# else
+#  include <gssapi.h>
+# endif
+#endif
+
+#include <sudo.h>
+#include <sudo_dso.h>
+#include <sudo_plugin.h>
+
+#ifdef STATIC_SUDOERS_PLUGIN
+
+extern struct policy_plugin sudoers_policy;
+extern struct io_plugin sudoers_io;
+extern struct audit_plugin sudoers_audit;
+
+static struct sudo_preload_symbol sudo_rtld_default_symbols[] = {
+# ifdef HAVE_GSS_KRB5_CCACHE_NAME
+    { "gss_krb5_ccache_name", (void *)&gss_krb5_ccache_name},
+# endif
+    { (const char *)0, (void *)0 }
+};
+
+/* XXX - can we autogenerate these? */
+static struct sudo_preload_symbol sudo_sudoers_plugin_symbols[] = {
+    { "sudoers_policy", (void *)&sudoers_policy },
+    { "sudoers_io", (void *)&sudoers_io },
+    { "sudoers_audit", (void *)&sudoers_audit },
+    { (const char *)0, (void *)0 }
+};
+
+/*
+ * Statically compiled symbols indexed by handle.
+ */
+static struct sudo_preload_table sudo_preload_table[] = {
+    { (char *)0, SUDO_DSO_DEFAULT, sudo_rtld_default_symbols },
+    { _PATH_SUDOERS_PLUGIN, &sudo_sudoers_plugin_symbols, sudo_sudoers_plugin_symbols },
+    { (char *)0, (void *)0, (struct sudo_preload_symbol *)0 }
+};
+
+void
+preload_static_symbols(void)
+{
+    sudo_dso_preload_table(sudo_preload_table);
+}
+
+#endif /* STATIC_SUDOERS_PLUGIN */