Line data    Source code

       1              : /**
       2              :  * Copyright (c) 2025 Huawei Technologies Co., Ltd.
       3              :  * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
       4              :  * CANN Open Software License Agreement Version 2.0 (the "License").
       5              :  * Please refer to the License for details. You may not use this file except in compliance with the License.
       6              :  * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
       7              :  * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
       8              :  * See LICENSE in the root of the software repository for the full text of the License.
       9              :  */
      10              : 
      11              : #include "file_utils.h"
      12              : #include "mmpa/mmpa_api.h"
      13              : #include "common/log_inner.h"
      14              : 
      15              : namespace acl {
      16              : namespace file_utils {
      17           10 : aclError GetSoRealPath(std::string& path)
      18              : {
      19              :     mmDlInfo dlInfo;
      20           10 :     if ((mmDladdr(reinterpret_cast<void*>(&GetSoRealPath), &dlInfo) != EN_OK) || (dlInfo.dli_fname == nullptr)) {
      21            2 :         ACL_LOG_WARN("Failed to get shared library path! errmsg:%s", mmDlerror());
      22            2 :         return ACL_ERROR_INTERNAL_ERROR;
      23              :     }
      24              : 
      25            8 :     if (strlen(dlInfo.dli_fname) >= MMPA_MAX_PATH) {
      26            0 :         ACL_LOG_WARN("The shared library path is too long!");
      27            0 :         return ACL_ERROR_INTERNAL_ERROR;
      28              :     }
      29              : 
      30            8 :     char_t realPath[MMPA_MAX_PATH] = {};
      31            8 :     if (mmRealPath(dlInfo.dli_fname, &realPath[0], MMPA_MAX_PATH) != EN_OK) {
      32            2 :         constexpr size_t maxErrorStrLen = 128U;
      33            2 :         char_t errBuf[maxErrorStrLen + 1U] = {};
      34            2 :         const auto errMsg = mmGetErrorFormatMessage(mmGetErrorCode(), &errBuf[0], maxErrorStrLen);
      35            2 :         ACL_LOG_WARN("Failed to get realpath of %s, errmsg:%s", dlInfo.dli_fname, errMsg);
      36            2 :         return ACL_ERROR_INTERNAL_ERROR;
      37              :     }
      38              : 
      39            6 :     path = realPath;
      40            6 :     path = path.substr(0U, path.rfind('/') + 1U);
      41            6 :     return ACL_SUCCESS;
      42              : }
      43              : 
      44           16 : std::string GetLocalRealPath(const std::string& path)
      45              : {
      46           16 :     if (path.empty()) {
      47            2 :         return "";
      48              :     }
      49              : 
      50           15 :     char resolvedPath[PATH_MAX] = {0};
      51              : 
      52           15 :     if (realpath(path.c_str(), resolvedPath) == nullptr) {
      53            1 :         ACL_LOG_WARN("Failed to get real path for [%s], errno:%d", path.c_str(), errno);
      54            2 :         return "";
      55              :     }
      56              : 
      57           28 :     return std::string(resolvedPath);
      58              : }
      59              : } // namespace file_utils
      60              : } // namespace acl