Patches for DB version 2.0.0

1. Problem: DB can core dump when parsing NAME/VALUE configuration pairs.
   

   Apply the following patch to the common/db_appinit.c file.

   *** common/db_appinit.c.orig    Wed Dec 31 19:00:00 1969
   --- common/db_appinit.c Fri Apr 11 13:17:44 1997
   ***************
   *** 430,436 ****
           char *s;
     {
           int ret;
   !       char *local_s, *name, *value, **p;
     
           ret = 0;
     
   --- 430,436 ----
           char *s;
     {
           int ret;
   !       char *local_s, *name, *value, **p, *tp;
     
           ret = 0;
     
   ***************
   *** 441,450 ****
           if ((local_s = strdup(s)) == NULL)
                   return (ENOMEM);
     
   !       while ((name = strsep(&local_s, " \t")) != NULL && *name == '\0');
           if (name == NULL)
                   goto err;
   !       while ((value = strsep(&local_s, " \t")) != NULL && *value == '\0');
           if (value == NULL) {
     err:          __db_err(dbenv, "illegal name-value pair");
                   ret = EINVAL;
   --- 441,451 ----
           if ((local_s = strdup(s)) == NULL)
                   return (ENOMEM);
     
   !       tp = local_s;
   !       while ((name = strsep(&tp, " \t")) != NULL && *name == '\0');
           if (name == NULL)
                   goto err;
   !       while ((value = strsep(&tp, " \t")) != NULL && *value == '\0');
           if (value == NULL) {
     err:          __db_err(dbenv, "illegal name-value pair");
                   ret = EINVAL;
   

    

2. Problem: DB can return deleted records in some situations.
   

   Apply the following patch to the btree/bt_delete.c file.

   *** btree/bt_delete.c.orig      Fri Apr  4 11:08:21 1997
   --- btree/bt_delete.c   Sat Apr 12 11:27:29 1997
   ***************
   *** 102,108 ****
                           break;
           for (; cnt > 0; --cnt, ++t->bt_deleted)
                   if (__bt_ca_delete(dbp, h->pgno, indx, NULL) != 0) {
   !                       GET_BKEYDATA(h, indx)->deleted = 1;
                           indx += P_INDX;
                   } else {
                           if ((ret = __bt_ditem(dbp, h, indx)) != 0)
   --- 102,108 ----
                           break;
           for (; cnt > 0; --cnt, ++t->bt_deleted)
                   if (__bt_ca_delete(dbp, h->pgno, indx, NULL) != 0) {
   !                       GET_BKEYDATA(h, indx + O_INDX)->deleted = 1;
                           indx += P_INDX;
                   } else {
                           if ((ret = __bt_ditem(dbp, h, indx)) != 0)