add error message

2015-11-03 15:33:26 +01:00
parent e1d6f3318b
commit 6a49e6f7e2
1 changed files with 6 additions and 0 deletions
@@ -36,6 +36,12 @@ int runScript(const char* filename, const char* args)
    char** pairs;
    int status = 0;
    
+    if (!filename)
+    {
+        fprintf(stderr, "Usage: runScript filename [macro=value,...]\n");
+        return -1;
+    }
+    
    if (interruptAccept)
    {
        fprintf(stderr, "Warning: Running script %s after iocInit may crash the ioc later.\n",