linker_utils.h revision 4cabfaad340c957ff691cfbc420b29da805c5dd8 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *  * Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *  * Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in
12 *    the documentation and/or other materials provided with the
13 *    distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef __LINKER_UTILS_H
30#define __LINKER_UTILS_H
31
32#include <string>
33#include <vector>
34
35extern const char* const kZipFileSeparator;
36
37void format_string(std::string* str, const std::vector<std::pair<std::string, std::string>>& params);
38
39bool file_is_in_dir(const std::string& file, const std::string& dir);
40bool file_is_under_dir(const std::string& file, const std::string& dir);
41bool normalize_path(const char* path, std::string* normalized_path);
42bool parse_zip_path(const char* input_path, std::string* zip_path, std::string* entry_path);
43
44// For every path element this function checks of it exists, and is a directory,
45// and normalizes it:
46// 1. For regular path it converts it to realpath()
47// 2. For path in a zip file it uses realpath on the zipfile
48//    normalizes entry name by calling normalize_path function.
49void resolve_paths(std::vector<std::string>& paths,
50                   std::vector<std::string>* resolved_paths);
51
52void split_path(const char* path, const char* delimiters, std::vector<std::string>* paths);
53
54std::string dirname(const char* path);
55
56off64_t page_start(off64_t offset);
57size_t page_offset(off64_t offset);
58bool safe_add(off64_t* out, off64_t a, size_t b);
59
60#endif
61