| /* |
| * |
| * Copyright (c) 2019 Google LLC. |
| * All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * @file |
| * This file contains functions for working with ASN1 errors. |
| */ |
| |
| #include <stdlib.h> |
| |
| #include <Weave/Support/ASN1.h> |
| #include <Weave/Support/ErrorStr.h> |
| |
| namespace nl { |
| namespace Weave { |
| namespace ASN1 { |
| |
| /** |
| * Given an ASN1 error, returns a human-readable NULL-terminated C string |
| * describing the error. |
| * |
| * @param[in] buf Buffer into which the error string will be placed. |
| * @param[in] bufSize Size of the supplied buffer in bytes. |
| * @param[in] err The error to be described. |
| * |
| * @return true If a description string was written into the supplied buffer. |
| * @return false If the supplied error was not an ASN1 error. |
| * |
| */ |
| bool FormatASN1Error(char * buf, uint16_t bufSize, int32_t err) |
| { |
| const char * desc = NULL; |
| |
| if (err < ASN1_ERROR_MIN || err > ASN1_ERROR_MAX) |
| { |
| return false; |
| } |
| |
| #if !WEAVE_CONFIG_SHORT_ERROR_STR |
| switch (err) |
| { |
| case ASN1_END : desc = "End of input"; break; |
| case ASN1_ERROR_UNDERRUN : desc = "Reader underrun"; break; |
| case ASN1_ERROR_OVERFLOW : desc = "Writer overflow"; break; |
| case ASN1_ERROR_INVALID_STATE : desc = "Invalid state"; break; |
| case ASN1_ERROR_MAX_DEPTH_EXCEEDED : desc = "Max depth exceeded"; break; |
| case ASN1_ERROR_INVALID_ENCODING : desc = "Invalid encoding"; break; |
| case ASN1_ERROR_UNSUPPORTED_ENCODING : desc = "Unsupported encoding"; break; |
| case ASN1_ERROR_TAG_OVERFLOW : desc = "Tag overflow"; break; |
| case ASN1_ERROR_LENGTH_OVERFLOW : desc = "Length overflow"; break; |
| case ASN1_ERROR_VALUE_OVERFLOW : desc = "Value overflow"; break; |
| case ASN1_ERROR_UNKNOWN_OBJECT_ID : desc = "Unknown object id"; break; |
| } |
| #endif // !WEAVE_CONFIG_SHORT_ERROR_STR |
| |
| FormatError(buf, bufSize, "ASN1", err, desc); |
| |
| return true; |
| } |
| |
| } // namespace ASN1 |
| } // namespace Weave |
| } // namespace nl |