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              : 
      16              : namespace acl {
      17              : namespace file_utils {
      18           10 : aclError GetSoRealPath(std::string &path)
      19              : {
      20              :     mmDlInfo dlInfo;
      21           10 :     if ((mmDladdr(reinterpret_cast<void *>(&GetSoRealPath), &dlInfo) != EN_OK) || (dlInfo.dli_fname == nullptr)) {
      22            2 :         ACL_LOG_WARN("Failed to get shared library path! errmsg:%s", mmDlerror());
      23            2 :         return ACL_ERROR_INTERNAL_ERROR;
      24              :     }
      25              : 
      26            8 :     if (strlen(dlInfo.dli_fname) >= MMPA_MAX_PATH) {
      27            0 :         ACL_LOG_WARN("The shared library path is too long!");
      28            0 :         return ACL_ERROR_INTERNAL_ERROR;
      29              :     }
      30              : 
      31            8 :     char_t realPath[MMPA_MAX_PATH] = {};
      32            8 :     if (mmRealPath(dlInfo.dli_fname, &realPath[0], MMPA_MAX_PATH) != EN_OK) {
      33            2 :         constexpr size_t maxErrorStrLen = 128U;
      34            2 :         char_t errBuf[maxErrorStrLen + 1U] = {};
      35            2 :         const auto errMsg = mmGetErrorFormatMessage(mmGetErrorCode(), &errBuf[0], maxErrorStrLen);
      36            2 :         ACL_LOG_WARN("Failed to get realpath of %s, errmsg:%s", dlInfo.dli_fname, errMsg);
      37            2 :         return ACL_ERROR_INTERNAL_ERROR;
      38              :     }
      39              : 
      40            6 :     path = realPath;
      41            6 :     path = path.substr(0U, path.rfind('/') + 1U);
      42            6 :     return ACL_SUCCESS;
      43              : }
      44              : 
      45           16 : std::string GetLocalRealPath(const std::string &path)
      46              : {
      47           16 :     if (path.empty()) {
      48            2 :         return "";
      49              :     }
      50              : 
      51           15 :     char resolvedPath[PATH_MAX] = {0};
      52              :     
      53           15 :     if (realpath(path.c_str(), resolvedPath) == nullptr) {
      54            1 :         ACL_LOG_WARN("Failed to get real path for [%s], errno:%d", path.c_str(), errno);
      55            2 :         return "";
      56              :     }
      57              :     
      58           28 :     return std::string(resolvedPath);
      59              : }
      60              : } // namespace file_utils
      61              : } // namespace acl
      62              :