66bc428f93
Change three things regarding the work around to the fact that init is
special:
1) Only first stage init is special, so we change the check to include
accessing /proc/self/exe, which if is available, means that we're
not first stage init and do not need any work arounds.
2) Fix the fact that /init may be a symlink and may need readlink()
3) Suppress errors from realpath_fd() since these are expected to fail
due to /proc not being mounted.
Bug: 80395578
Test: sailfish boots without the audit generated from calling stat()
on /init and without the errors from realpath_fd()
Change-Id: I266f1486b142cb9a41ec791eba74122bdf38cf12
58 lines
2.5 KiB
C++
58 lines
2.5 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#pragma once
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#include <string>
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#include <vector>
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extern const char* const kZipFileSeparator;
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void format_string(std::string* str, const std::vector<std::pair<std::string, std::string>>& params);
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bool file_is_in_dir(const std::string& file, const std::string& dir);
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bool file_is_under_dir(const std::string& file, const std::string& dir);
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bool normalize_path(const char* path, std::string* normalized_path);
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bool parse_zip_path(const char* input_path, std::string* zip_path, std::string* entry_path);
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// For every path element this function checks of it exists, and is a directory,
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// and normalizes it:
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// 1. For regular path it converts it to realpath()
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// 2. For path in a zip file it uses realpath on the zipfile
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// normalizes entry name by calling normalize_path function.
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void resolve_paths(std::vector<std::string>& paths,
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std::vector<std::string>* resolved_paths);
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void split_path(const char* path, const char* delimiters, std::vector<std::string>* paths);
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std::string dirname(const char* path);
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off64_t page_start(off64_t offset);
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size_t page_offset(off64_t offset);
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bool safe_add(off64_t* out, off64_t a, size_t b);
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bool is_first_stage_init();
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