Cleanup some potential memory overruns

cmr=v1.7.5:reviewer=jsquyres

This commit was SVN r30331.

orte/mca/iof/base/iof_base_output.c

@@ -243,12 +243,12 @@ construct:
             }
         }
     }
-    if (!endtagged) {
+    if (!endtagged && k < ORTE_IOF_BASE_TAGGED_OUT_MAX) {
         /* need to add an endtag */
         for (j=0; j < endtaglen && k < ORTE_IOF_BASE_TAGGED_OUT_MAX-1; j++) {
             output->data[k++] = endtag[j];
         }
-        output->data[k++] = '\n';
+        output->data[k] = '\n';
     }
     output->numbytes = k;
     

orte/util/regex.c

@@ -522,6 +522,10 @@ static int regex_parse_node_range(char *base, char *range, int num_digits, char
     bool found;
     int ret;
     
+    if (NULL == base || NULL == range) {
+        return ORTE_ERROR;
+    }
+
     len = strlen(range);
     base_len = strlen(base);
     /* Silence compiler warnings; start and end are always assigned