in ::spa () for VxWorks, zero out unused argv[] slots to overwrite args from previous invocations

1 files changed, 9 insertions, 0 deletions

diff --git a/ace/OS.cpp b/ace/OS.cpp
index f79760c1762..583430de95d 100644
--- a/ace/OS.cpp
+++ b/ace/OS.cpp
@@ -1430,6 +1430,15 @@ spa (FUNCPTR entry, ...)
          fprintf (stderr, "spa(): number of arguments limited to %d\n",
                   MAX_ARGS);
      }
+   else
+     {
+       // fill unused argv slots with 0 to get rid of leftovers
+       // from previous invocations
+              for ( ; argc <= MAX_ARGS; ++argc)
+                {
+                  argv[argc] = 0;
+                }
+     }
 
    int ret = ::sp (entry, argc, (int) argv, 0, 0, 0, 0, 0, 0, 0);
    va_end (pvar);