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           9 : aclError GetSoRealPath(std::string &path)
      19             : {
      20           9 :     mmDlInfo dlInfo;
      21           9 :     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           7 :     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           7 :     char_t realPath[MMPA_MAX_PATH] = {};
      32           7 :     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           5 :     path = realPath;
      41           5 :     path = path.substr(0U, path.rfind('/') + 1U);
      42           5 :     return ACL_SUCCESS;
      43             : }
      44             : 
      45          15 : std::string GetLocalRealPath(const std::string &path)
      46             : {
      47          15 :     if (path.empty()) {
      48           1 :         return "";
      49             :     }
      50             : 
      51          14 :     char resolvedPath[PATH_MAX] = {0};
      52             :     
      53          14 :     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           1 :         return "";
      56             :     }
      57             :     
      58          13 :     return std::string(resolvedPath);
      59             : }
      60             : } // namespace file_utils
      61             : } // namespace acl
      62             :