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59e8a7316f
This reverts commit33142d5005
, reversing changes made to408a652a01
.
304 lines
6.0 KiB
C++
304 lines
6.0 KiB
C++
/* Copyright (c) 2015, Pollard Banknote Limited
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All rights reserved.
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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 are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "filestatus.h"
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#include <iostream>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "path.h"
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namespace
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{
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::cpp17::filesystem::file_status
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from_mode_t(mode_t m)
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{
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::cpp17::filesystem::perms p =
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static_cast< cpp17::filesystem::perms >(m & 0xFFF);
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::cpp17::filesystem::file_type t = file_type::unknown;
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if(S_ISREG(m))
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{
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t = file_type::regular;
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}
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else if(S_ISDIR(m))
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{
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t = file_type::directory;
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}
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else if(S_ISCHR(m))
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{
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t = file_type::character;
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}
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else if(S_ISBLK(m))
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{
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t = file_type::block;
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}
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else if(S_ISFIFO(m))
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{
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t = file_type::fifo;
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}
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#ifndef _WIN32 // these only work on cygnus or msys2!
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else if(S_ISLNK(m))
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{
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t = file_type::symlink;
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}
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else if(S_ISSOCK(m))
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{
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t = file_type::socket;
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}
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#endif
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return ::cpp17::filesystem::file_status(t, p);
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}
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} // namespace
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namespace cpp17
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{
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namespace filesystem
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{
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file_status::file_status(const file_status& s) : t(s.t), p(s.p)
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{
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}
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file_status::file_status(file_type t_, perms p_) : t(t_), p(p_)
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{
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}
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file_status&
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file_status::operator=(const file_status& s)
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{
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t = s.t;
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p = s.p;
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return *this;
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}
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file_type
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file_status::type() const
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{
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return t;
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}
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void
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file_status::type(file_type t_)
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{
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t = t_;
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}
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perms
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file_status::permissions() const
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{
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return p;
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}
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void
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file_status::permissions(perms p_)
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{
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p = p_;
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}
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std::ostream&
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operator<<(std::ostream& os, const file_status& fs)
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{
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os << fs.type() << "; " << fs.permissions();
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return os;
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}
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file_status
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status(const path& path_)
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{
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if(!path_.empty())
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{
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struct stat st;
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if(::stat(path_.c_str(), &st) == 0)
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{
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return from_mode_t(st.st_mode);
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}
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}
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return file_status();
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}
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file_status
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symlink_status(const path& path_)
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{
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if(!path_.empty())
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{
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struct stat st;
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#ifndef _WIN32
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if(::lstat(path_.c_str(), &st) == 0)
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#else
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if(::stat(path_.c_str(), &st) == 0)
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#endif
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{
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return from_mode_t(st.st_mode);
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}
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}
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return file_status();
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}
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bool
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status_known(file_status s)
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{
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return s.type() != file_type::none;
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}
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bool
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exists(file_status s)
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{
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return status_known(s) && s.type() != file_type::not_found;
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}
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bool
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exists(const path& p, __attribute__((unused)) std::error_code& ec)
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{
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return exists(status(p));
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}
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bool
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is_block_file(file_status s)
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{
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return s.type() == file_type::block;
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}
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bool
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is_block_file(const path& p)
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{
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return is_block_file(status(p));
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}
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bool
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is_character_file(file_status s)
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{
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return s.type() == file_type::character;
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}
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bool
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is_character_file(const path& p)
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{
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return is_character_file(status(p));
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}
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bool
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is_fifo(file_status s)
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{
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return s.type() == file_type::fifo;
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}
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bool
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is_fifo(const path& p)
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{
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return is_fifo(status(p));
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}
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bool
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is_other(file_status s)
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{
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return exists(s) && !is_regular_file(s) && !is_directory(s)
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&& !is_symlink(s);
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}
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bool
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is_other(const path& p)
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{
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return is_other(status(p));
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}
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bool
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is_regular_file(file_status s)
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{
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return s.type() == file_type::regular;
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}
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bool
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is_regular_file(const path& p)
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{
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return is_regular_file(status(p));
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}
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bool
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is_socket(file_status s)
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{
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return s.type() == file_type::socket;
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}
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bool
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is_socket(const path& p)
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{
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return is_socket(status(p));
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}
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bool
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is_symlink(file_status s)
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{
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return s.type() == file_type::symlink;
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}
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bool
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is_symlink(const path& p)
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{
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return is_symlink(status(p));
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}
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bool
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is_directory(file_status s)
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{
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return s.type() == file_type::directory;
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}
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bool
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is_directory(const path& p)
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{
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return is_directory(status(p));
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}
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std::size_t
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file_size(const path& p)
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{
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if(!p.empty())
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{
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struct stat st;
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if(::stat(p.c_str(), &st) == 0)
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{
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return st.st_size;
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}
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}
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return std::size_t(-1);
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}
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} // namespace filesystem
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} // namespace cpp17
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