Fix launch_id matching of -hosts

Need to check the entire value instead of just the last N digits. Otherwise, "-host 15" will match nid0015, nid0115, and any other launch id ending in 15

It appears strtol can return either a NULL or a zero-length string, so check for both cases

Signed-off-by: Ralph Castain <rhc@open-mpi.org>

orte/mca/ras/base/ras_base_allocate.c

@@ -11,7 +11,7 @@
  *                         All rights reserved.
  * Copyright (c) 2011-2012 Los Alamos National Security, LLC.  All rights
  *                         reserved.
- * Copyright (c) 2014-2016 Intel, Inc. All rights reserved.
+ * Copyright (c) 2014-2017 Intel, Inc. All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -266,6 +266,7 @@ void orte_ras_base_allocate(int fd, short args, void *cbdata)
             return;
         }
     }
+
     if (NULL != orte_rankfile) {
         OPAL_OUTPUT_VERBOSE((5, orte_ras_base_framework.framework_output,
                              "%s ras:base:allocate parsing rankfile %s",
@@ -386,7 +387,7 @@ void orte_ras_base_allocate(int fd, short args, void *cbdata)
                          "%s ras:base:allocate nothing found in rankfile - inserting current node",
                          ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
 
- addlocal:
+  addlocal:
     /* if nothing was found by any of the above methods, then we have no
      * earthly idea what to do - so just add the local host
      */
@@ -420,13 +421,13 @@ void orte_ras_base_allocate(int fd, short args, void *cbdata)
     }
     OBJ_DESTRUCT(&nodes);
 
- DISPLAY:
+  DISPLAY:
     /* shall we display the results? */
     if (4 < opal_output_get_verbosity(orte_ras_base_framework.framework_output)) {
         orte_ras_base_display_alloc();
     }
 
- next_state:
+  next_state:
     /* are we to report this event? */
     if (orte_report_events) {
         if (ORTE_SUCCESS != (rc = orte_util_comm_report_event(ORTE_COMM_EVENT_ALLOCATE))) {

orte/util/dash_host/dash_host.c

@@ -24,6 +24,7 @@
 #include "orte_config.h"
 
 #include <string.h>
+#include <ctype.h>
 
 #include "orte/constants.h"
 #include "orte/types.h"
@@ -515,25 +516,31 @@ int orte_util_filter_dash_host_nodes(opal_list_t *nodes,
             /* we are looking for a specific node on the list. The
              * parser will have substituted our local name for any
              * alias, so we only have to do a strcmp here. */
-            lmn = strtol(mapped_nodes[i], &cptr, 10);
-            if (orte_managed_allocation && NULL != cptr) {
-                /* if we are only given a number, then we only test the
-                 * number of matching characters starting from the rear
-                 * of the mapped_nodes entry. This allows support for
-                 * launch_id-based environments. For example, a hostname
-                 * of "nid0015" can be referenced by "--host 15" */
-                lmn = strlen(mapped_nodes[i]);
-            } else {
-                lmn = 0;
-            }
+            cptr = NULL;
+            lmn = strtoul(mapped_nodes[i], &cptr, 10);
             item = opal_list_get_first(nodes);
             while (item != opal_list_get_end(nodes)) {
                 next = opal_list_get_next(item);  /* save this position */
                 node = (orte_node_t*)item;
                 /* search -host list to see if this one is found */
-                if (0 < lmn) {
-                    lst = strlen(node->name);
-                    test = strncmp(node->name + lst - lmn, mapped_nodes[i], lmn);
+                if (orte_managed_allocation &&
+                    (NULL == cptr || 0 == strlen(cptr))) {
+                    /* if we are only given a number, then we test the
+                     * value against the number in the node name. This allows support for
+                     * launch_id-based environments. For example, a hostname
+                     * of "nid0015" can be referenced by "--host 15" */
+                    for (j=strlen(node->name)-1; 0 < j; j--) {
+                        if (!isdigit(node->name[j])) {
+                            j++;
+                            break;
+                        }
+                    }
+                    if (j >= (int)(strlen(node->name) - 1)) {
+                        test = 0;
+                    } else {
+                        lst = strtoul(&node->name[j], NULL, 10);
+                        test = (lmn == lst) ? 0 : 1;
+                    }
                 } else {
                     test = strcmp(node->name, mapped_nodes[i]);
                 }