bk commit into 5.0 tree (stewart:1.2137) BUG#19932

[Stewart Smith]

Below is the list of changes that have just been committed into a local
5.0 repository of stewart. When stewart does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
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ChangeSet
  1.2137 06/05/23 14:51:04 stewart@stripped +1 -0
  BUG#19932 mgmapi crash if disconnect in ndb_mgm_get_status
  
  correctly detect and report errors in talking to mgm server and memory allocation

  ndb/src/mgmapi/mgmapi.cpp
    1.61 06/05/23 14:50:59 stewart@stripped +24 -3
    correctly detect and return errors in ndb_mgm_get_status

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	stewart
# Host:	willster.(none)
# Root:	/home/stewart/Documents/MySQL/5.0/bug19932

--- 1.60/ndb/src/mgmapi/mgmapi.cpp	2006-05-17 08:23:26 +10:00
+++ 1.61/ndb/src/mgmapi/mgmapi.cpp	2006-05-23 14:50:59 +10:00
@@ -678,7 +678,11 @@
   out.println("");
 
   char buf[1024];
-  in.gets(buf, sizeof(buf));
+  if(!in.gets(buf, sizeof(buf)))
+  {
+    SET_ERROR(handle, NDB_MGM_ILLEGAL_SERVER_REPLY, "Probably disconnected");
+    return NULL;
+  }
   if(buf[strlen(buf)-1] == '\n')
     buf[strlen(buf)-1] = '\0';
 
@@ -687,7 +691,11 @@
     return NULL;
   }
 
-  in.gets(buf, sizeof(buf));
+  if(!in.gets(buf, sizeof(buf)))
+  {
+    SET_ERROR(handle, NDB_MGM_ILLEGAL_SERVER_REPLY, "Probably disconnected");
+    return NULL;
+  }
   if(buf[strlen(buf)-1] == '\n')
     buf[strlen(buf)-1] = '\0';
   
@@ -710,6 +718,13 @@
     malloc(sizeof(ndb_mgm_cluster_state)+
 	   noOfNodes*(sizeof(ndb_mgm_node_state)+sizeof("000.000.000.000#")));
 
+  if(!state)
+  {
+    SET_ERROR(handle, NDB_MGM_OUT_OF_MEMORY,
+              "Allocating ndb_mgm_cluster_state");
+    return NULL;
+  }
+
   state->no_of_nodes= noOfNodes;
   ndb_mgm_node_state * ptr = &state->node_states[0];
   int nodeId = 0;
@@ -719,7 +734,13 @@
   }
   i = -1; ptr--;
   for(; i<noOfNodes; ){
-    in.gets(buf, sizeof(buf));
+    if(!in.gets(buf, sizeof(buf)))
+    {
+      free(state);
+      SET_ERROR(handle, NDB_MGM_ILLEGAL_SERVER_REPLY,
+                "Probably disconnected");
+      return NULL;
+    }
     tmp.assign(buf);
 
     if(tmp.trim() == ""){