--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nss/lib/libpkix/pkix/util/pkix_errpaths.c	Mon Jul 28 10:47:06 2014 +0200
@@ -0,0 +1,103 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+/*
+ * pkix_errpaths.c
+ *
+ * Error Handling Helper Functions
+ *
+ */
+
+#define PKIX_STDVARS_POINTER
+#include "pkix_error.h"
+
+const PKIX_StdVars zeroStdVars;
+
+PKIX_Error*
+PKIX_DoThrow(PKIX_StdVars * stdVars, PKIX_ERRORCLASS errClass, 
+             PKIX_ERRORCODE errCode, PKIX_ERRORCLASS overrideClass,
+             void *plContext)
+{
+    if (!pkixErrorReceived && !pkixErrorResult && pkixErrorList) { 
+        pkixTempResult = PKIX_List_GetItem(pkixErrorList, 0, 
+                         (PKIX_PL_Object**)&pkixReturnResult,
+                                           plContext); 
+    } else { 
+        pkixTempResult = (PKIX_Error*)pkix_Throw(errClass, myFuncName, errCode,
+                                                 overrideClass, pkixErrorResult,
+                                                 &pkixReturnResult, plContext);
+    }
+    if (pkixReturnResult) {
+        if (pkixErrorResult != PKIX_ALLOC_ERROR()) {
+            PKIX_DECREF(pkixErrorResult);
+        }
+        pkixTempResult = pkixReturnResult;
+    } else if (pkixErrorResult) {
+        if (pkixTempResult != PKIX_ALLOC_ERROR()) {
+            PKIX_DECREF(pkixTempResult);
+        }
+        pkixTempResult = pkixErrorResult;
+    }
+    if (pkixErrorList) {
+        PKIX_PL_Object_DecRef((PKIX_PL_Object*)pkixErrorList, plContext);
+        pkixErrorList = NULL;
+    }
+    return pkixTempResult;
+}
+
+PKIX_Error *
+PKIX_DoReturn(PKIX_StdVars * stdVars, PKIX_ERRORCLASS errClass,
+              PKIX_Boolean doLogger, void *plContext)
+{
+    PKIX_OBJECT_UNLOCK(lockedObject);
+    if (pkixErrorReceived || pkixErrorResult || pkixErrorList)
+	return PKIX_DoThrow(stdVars, errClass, pkixErrorCode, pkixErrorClass,
+                             plContext);
+    /* PKIX_DEBUG_EXIT(type); */
+    if (doLogger)
+	_PKIX_DEBUG_TRACE(pkixLoggersDebugTrace, "<<<", PKIX_LOGGER_LEVEL_TRACE);
+    return NULL;
+}
+
+/* PKIX_DoAddError - creates the list of received error if it does not exist
+ * yet and adds newly received error into the list. */
+void
+PKIX_DoAddError(PKIX_StdVars *stdVars, PKIX_Error *error, void * plContext)
+{
+    PKIX_List *localList = NULL;
+    PKIX_Error *localError = NULL;
+    PKIX_Boolean listCreated = PKIX_FALSE;
+
+    if (!pkixErrorList) {
+        localError = PKIX_List_Create(&localList, plContext);
+        if (localError)
+            goto cleanup;
+        listCreated = PKIX_TRUE;
+    } else {
+        localList = pkixErrorList;
+    }
+
+    localError = PKIX_List_AppendItem(localList, (PKIX_PL_Object*)error,
+                                      plContext);
+    PORT_Assert (localError == NULL);
+    if (localError != NULL) {
+        if (listCreated) {
+            /* ignore the error code of DecRef function */
+            PKIX_PL_Object_DecRef((PKIX_PL_Object*)localList, plContext);
+            localList = NULL;
+        }
+    } else {
+        pkixErrorList = localList;
+    }
+
+cleanup:
+
+    if (localError && localError != PKIX_ALLOC_ERROR()) {
+        PKIX_PL_Object_DecRef((PKIX_PL_Object*)localError, plContext);
+    }
+
+    if (error && error != PKIX_ALLOC_ERROR()) {
+        PKIX_PL_Object_DecRef((PKIX_PL_Object*)error, plContext);
+    }
+}
+