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1 | // Copyright (c) 2006, 2007 Julio M. Merino Vidal |
2 | // Copyright (c) 2008 Ilya Sokolov, Boris Schaeling | |
3 | // Copyright (c) 2009 Boris Schaeling | |
4 | // Copyright (c) 2010 Felipe Tanus, Boris Schaeling | |
5 | // Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling | |
6 | // | |
7 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
8 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
9 | ||
10 | #ifndef BOOST_PROCESS_WINDOWS_SEARCH_PATH_HPP | |
11 | #define BOOST_PROCESS_WINDOWS_SEARCH_PATH_HPP | |
12 | ||
13 | #include <boost/process/detail/config.hpp> | |
14 | #include <boost/filesystem/path.hpp> | |
15 | #include <boost/filesystem/operations.hpp> | |
16 | #include <boost/system/error_code.hpp> | |
17 | #include <string> | |
18 | #include <stdexcept> | |
19 | #include <array> | |
20 | #include <atomic> | |
21 | #include <cstdlib> | |
22 | #include <boost/winapi/shell.hpp> | |
23 | #include <boost/process/environment.hpp> | |
24 | ||
25 | namespace boost { namespace process { namespace detail { namespace windows { | |
26 | ||
27 | inline boost::filesystem::path search_path( | |
28 | const boost::filesystem::path &filename, | |
29 | const std::vector<boost::filesystem::path> &path) | |
30 | { | |
31 | const ::boost::process::wnative_environment ne{}; | |
32 | typedef typename ::boost::process::wnative_environment::const_entry_type value_type; | |
33 | const auto id = L"PATHEXT"; | |
34 | ||
35 | auto itr = std::find_if(ne.cbegin(), ne.cend(), | |
36 | [&](const value_type & e) | |
37 | {return id == ::boost::to_upper_copy(e.get_name(), ::boost::process::detail::process_locale());}); | |
38 | ||
39 | auto extensions_in = itr->to_vector(); | |
40 | ||
41 | std::vector<std::wstring> extensions((extensions_in.size() * 2) + 1); | |
42 | ||
43 | auto it_ex = extensions.begin(); | |
44 | it_ex++; | |
45 | it_ex = std::transform(extensions_in.begin(), extensions_in.end(), it_ex, | |
46 | [](const std::wstring & ws){return boost::to_lower_copy(ws, ::boost::process::detail::process_locale());}); | |
47 | ||
48 | std::transform(extensions_in.begin(), extensions_in.end(), it_ex, | |
49 | [](const std::wstring & ws){return boost::to_upper_copy(ws, ::boost::process::detail::process_locale());}); | |
50 | ||
51 | ||
52 | std::copy(std::make_move_iterator(extensions_in.begin()), std::make_move_iterator(extensions_in.end()), extensions.begin() + 1); | |
53 | ||
54 | ||
55 | for (auto & ext : extensions) | |
56 | boost::to_lower(ext); | |
57 | ||
58 | for (const boost::filesystem::path & pp : path) | |
59 | { | |
60 | auto p = pp / filename; | |
61 | for (boost::filesystem::path ext : extensions) | |
62 | { | |
63 | boost::filesystem::path pp = p; | |
64 | pp += ext; | |
65 | boost::system::error_code ec; | |
66 | bool file = boost::filesystem::is_regular_file(pp, ec); | |
67 | if (!ec && file && | |
68 | ::boost::winapi::sh_get_file_info(pp.native().c_str(), 0, 0, 0, ::boost::winapi::SHGFI_EXETYPE_)) | |
69 | { | |
70 | return pp; | |
71 | } | |
72 | } | |
73 | } | |
74 | return ""; | |
75 | } | |
76 | ||
77 | }}}} | |
78 | ||
79 | #endif |