1 files changed, 66 insertions, 0 deletions
diff --git a/vpp/api/n1k_harness.c b/vpp/api/n1k_harness.c
new file mode 100644
index 00000000000..4a5df4bdc2c
--- /dev/null
+++ b/vpp/api/n1k_harness.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <dlfcn.h>
+#include <vppinfra/format.h>
+
+void vlib_cli_output (void * vm, char * fmt, ...)
+{ clib_warning ("%s", fmt); }
+
+/* 
+ * build system finesse hack 
+ * since we can't build everything in one build system, this
+ * hack exists to make sure that the invoked program runs against
+ * the right libraries.
+ */
+
+int main (int argc, char ** argv)
+{
+  void *handle, *main_handle;
+  int (*fp)(int argc, char **argv);
+  int rv;
+  
+  /* n1k_harness <plugin-name> <plugin args> */
+
+  if (argc < 2) {
+      fformat (stderr, "usage: %s <plugin-name> [<plugin-args>...]\n",
+               argv[0]);
+      exit (1);
+  }
+
+  handle = dlopen (argv[1], RTLD_LAZY);
+
+  /* 
+   * Note: this can happen if the plugin has an undefined symbol reference,
+   * so print a warning. Otherwise, the poor slob won't know what happened.
+   * Ask me how I know that...
+   */
+  if (handle == 0)
+    {
+      clib_warning ("%s", dlerror());
+      exit(1);
+    }
+  
+  main_handle = dlsym (handle, "plugin_main");
+  if (main_handle == 0) {
+      clib_warning ("plugin_main(int argc, char **argv) missing...\n");
+      exit(1);
+  }
+
+  fp = main_handle;
+
+  rv = (*fp)(argc-2, argv+2);
+
+  return rv;
+}