Index: trunk/ippTools/src/warptool.c
===================================================================
--- trunk/ippTools/src/warptool.c	(revision 17142)
+++ trunk/ippTools/src/warptool.c	(revision 17145)
@@ -43,4 +43,7 @@
 static bool warpedMode(pxConfig *config);
 static bool revertwarpedMode(pxConfig *config);
+static bool blockMode(pxConfig *config);
+static bool maskedMode(pxConfig *config);
+static bool unblockMode(pxConfig *config);
 
 static bool parseAndInsertSkyCellMap(pxConfig *config, const char *mapfile);
@@ -77,4 +80,8 @@
         MODECASE(WARPTOOL_MODE_WARPED,            warpedMode);
         MODECASE(WARPTOOL_MODE_REVERTWARPED,      revertwarpedMode);
+        MODECASE(WARPTOOL_MODE_BLOCK,             blockMode);
+        MODECASE(WARPTOOL_MODE_MASKED,            maskedMode);
+        MODECASE(WARPTOOL_MODE_UNBLOCK,           unblockMode);
+
         default:
             psAbort("invalid option (this should not happen)");
@@ -926,4 +933,81 @@
 
 
+static bool blockMode(pxConfig *config)
+{
+    PS_ASSERT_PTR_NON_NULL(config, false);
+
+    PXOPT_LOOKUP_STR(label, config->args, "-label", true, false);
+
+    if (!warpMaskInsert(config->dbh, label)) {
+        psError(PS_ERR_UNKNOWN, false, "database error");
+        return false;
+    }
+
+    return true;
+}
+
+
+static bool maskedMode(pxConfig *config)
+{
+    PS_ASSERT_PTR_NON_NULL(config, false);
+
+    PXOPT_LOOKUP_BOOL(simple, config->args, "-simple", false);
+
+    psString query = psStringCopy("SELECT * FROM warpMask");
+
+    if (!p_psDBRunQuery(config->dbh, query)) {
+        psError(PS_ERR_UNKNOWN, false, "database error");
+        psFree(query);
+        return false;
+    }
+    psFree(query);
+
+    psArray *output = p_psDBFetchResult(config->dbh);
+    if (!output) {
+        psError(PS_ERR_UNKNOWN, false, "database error");
+        return false;
+    }
+    if (!psArrayLength(output)) {
+        psTrace("warpool", PS_LOG_INFO, "no rows found");
+        psFree(output);
+        return true;
+    }
+
+    if (!convertIdToStr(output)) {
+        psError(PS_ERR_UNKNOWN, false, "failed to convert id fields into a strings");
+        psFree(output);
+        return false;
+    }
+
+    // negative simple so the default is true
+    if (!ippdbPrintMetadatas(stdout, output, "warpMask", !simple)) {
+        psError(PS_ERR_UNKNOWN, false, "failed to print array");
+        psFree(output);
+        return false;
+    }
+
+    psFree(output);
+
+    return true;
+}
+
+
+static bool unblockMode(pxConfig *config)
+{
+    PS_ASSERT_PTR_NON_NULL(config, false);
+
+    PXOPT_LOOKUP_STR(label, config->args, "-label", true, false);
+
+    char *query = "DELETE FROM warpMask WHERE label = '%s'";
+
+    if (!p_psDBRunQuery(config->dbh, query, label)) {
+        psError(PS_ERR_UNKNOWN, false, "database error");
+        return false;
+    }
+
+    return true;
+}
+
+
 static bool isValidMode(pxConfig *config, const char *mode)
 {