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posix/ostream: add stat ostream operators

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This commit is contained in:
Danny Robson 2019-04-26 12:11:42 +10:00
parent cd8a2d9816
commit 5fb87ea4c4
3 changed files with 96 additions and 0 deletions
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2
CMakeLists.txt
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@ -91,6 +91,8 @@ list (
posix/except.hpp
posix/fd.cpp
posix/fd.hpp
posix/ostream.cpp
posix/ostream.hpp
posix/util.cpp
posix/util.hpp
)

78
posix/ostream.cpp Normal file
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@ -0,0 +1,78 @@
#include "ostream.hpp"
#include <ostream>
#include <iomanip>
///////////////////////////////////////////////////////////////////////////////
struct type_printer {
type_printer (struct stat const &_data)
: data (_data)
{ ; }
struct stat const &data;
};
//-----------------------------------------------------------------------------
std::ostream& operator<< (std::ostream &os, type_printer const &val)
{
os << "[ ";
if (val.data.st_mode & S_ISUID) os << "SUID, ";
if (val.data.st_mode & S_ISGID) os << "SGID, ";
if (val.data.st_mode & S_ISVTX) os << "STICKY, ";
os << "{ user: " << (val.data.st_mode & S_IRUSR ? 'r' : '_')
<< (val.data.st_mode & S_IWUSR ? 'w' : '_')
<< (val.data.st_mode & S_IXUSR ? 'x' : '_')
<< " }, "
<< "{ group: " << (val.data.st_mode & S_IRGRP ? 'r' : '_')
<< (val.data.st_mode & S_IWGRP ? 'w' : '_')
<< (val.data.st_mode & S_IXGRP ? 'x' : '_')
<< " }, "
<< "{ group: " << (val.data.st_mode & S_IROTH ? 'r' : '_')
<< (val.data.st_mode & S_IWOTH ? 'w' : '_')
<< (val.data.st_mode & S_IXOTH ? 'x' : '_')
<< " }";
return os;
}
///////////////////////////////////////////////////////////////////////////////
struct mode_printer {
mode_printer (struct stat const &_data)
: data (_data)
{ ; }
struct stat const &data;
};
//-----------------------------------------------------------------------------
std::ostream& operator<< (std::ostream &os, mode_printer const &val)
{
return S_ISREG (val.data.st_mode) ? os << "REGULAR"
: S_ISDIR (val.data.st_mode) ? os << "DIRECTORY"
: S_ISCHR (val.data.st_mode) ? os << "CHARACTER"
: S_ISBLK (val.data.st_mode) ? os << "BLOCK"
: S_ISFIFO (val.data.st_mode) ? os << "FIFO"
: S_ISLNK (val.data.st_mode) ? os << "SYMLINK"
: S_ISSOCK (val.data.st_mode) ? os << "SOCKET"
: (throw std::invalid_argument ("Unhandled mode_t"), os << "_error");
}
//-----------------------------------------------------------------------------
std::ostream& operator<< (std::ostream &os, struct stat const &val)
{
return os << "{ dev: " << val.st_dev
<< ", ino: " << val.st_ino
<< ", type: " << type_printer (val)
<< ", mode: " << mode_printer (val)
<< ", uid: " << val.st_uid
<< ", gid: " << val.st_gid
<< ", size: " << val.st_size
<< ", blocksize: " << val.st_blksize
<< " }";
}

16
posix/ostream.hpp Normal file
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@ -0,0 +1,16 @@
/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Copyright 2019, Danny Robson <danny@nerdcruft.net>
*/
#pragma once
#include <iosfwd>
#include <sys/stat.h>
///////////////////////////////////////////////////////////////////////////
std::ostream& operator<< (std::ostream& os, struct ::stat const &);