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Merge pull request #297 from trapexit/fsattr

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make fs_attr compile on unsupported platforms
This commit is contained in:
Antonio SJ Musumeci 2016-08-04 17:12:33 -04:00 committed by GitHub
commit fb1432e14e
3 changed files with 169 additions and 111 deletions
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116
src/fs_attr.cpp
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@ -14,114 +14,8 @@
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <errno.h>
#include <fcntl.h>
#include <linux/fs.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <string>
using std::string;
namespace fs
{
namespace attr
{
static
int
get_fs_ioc_flags(const int fd,
int &flags)
{
return ::ioctl(fd,FS_IOC_GETFLAGS,&flags);
}
static
int
get_fs_ioc_flags(const string &file,
int &flags)
{
int fd;
int rv;
const int openflags = O_RDONLY|O_NONBLOCK;
fd = ::open(file.c_str(),openflags);
if(fd == -1)
return -1;
rv = get_fs_ioc_flags(fd,flags);
if(rv == -1)
{
int error = errno;
::close(fd);
errno = error;
return -1;
}
return ::close(fd);
}
static
int
set_fs_ioc_flags(const int fd,
const int flags)
{
return ::ioctl(fd,FS_IOC_SETFLAGS,&flags);
}
static
int
set_fs_ioc_flags(const string &file,
const int flags)
{
int fd;
int rv;
const int openflags = O_RDONLY|O_NONBLOCK;
fd = ::open(file.c_str(),openflags);
if(fd == -1)
return -1;
rv = set_fs_ioc_flags(fd,flags);
if(rv == -1)
{
int error = errno;
::close(fd);
errno = error;
return -1;
}
return ::close(fd);
}
int
copy(const int fdin,
const int fdout)
{
int rv;
int flags;
rv = get_fs_ioc_flags(fdin,flags);
if(rv == -1)
return -1;
return set_fs_ioc_flags(fdout,flags);
}
int
copy(const string &from,
const string &to)
{
int rv;
int flags;
rv = get_fs_ioc_flags(from,flags);
if(rv == -1)
return -1;
return set_fs_ioc_flags(to,flags);
}
}
}
#ifdef __linux__
# include "fs_attr_linux.icpp"
#else
# include "fs_attr_unsupported.icpp"
#endif

127
src/fs_attr_linux.icpp Normal file
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@ -0,0 +1,127 @@
/*
Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <errno.h>
#include <fcntl.h>
#include <linux/fs.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <string>
using std::string;
namespace fs
{
namespace attr
{
static
int
get_fs_ioc_flags(const int fd,
int &flags)
{
return ::ioctl(fd,FS_IOC_GETFLAGS,&flags);
}
static
int
get_fs_ioc_flags(const string &file,
int &flags)
{
int fd;
int rv;
const int openflags = O_RDONLY|O_NONBLOCK;
fd = ::open(file.c_str(),openflags);
if(fd == -1)
return -1;
rv = get_fs_ioc_flags(fd,flags);
if(rv == -1)
{
int error = errno;
::close(fd);
errno = error;
return -1;
}
return ::close(fd);
}
static
int
set_fs_ioc_flags(const int fd,
const int flags)
{
return ::ioctl(fd,FS_IOC_SETFLAGS,&flags);
}
static
int
set_fs_ioc_flags(const string &file,
const int flags)
{
int fd;
int rv;
const int openflags = O_RDONLY|O_NONBLOCK;
fd = ::open(file.c_str(),openflags);
if(fd == -1)
return -1;
rv = set_fs_ioc_flags(fd,flags);
if(rv == -1)
{
int error = errno;
::close(fd);
errno = error;
return -1;
}
return ::close(fd);
}
int
copy(const int fdin,
const int fdout)
{
int rv;
int flags;
rv = get_fs_ioc_flags(fdin,flags);
if(rv == -1)
return -1;
return set_fs_ioc_flags(fdout,flags);
}
int
copy(const string &from,
const string &to)
{
int rv;
int flags;
rv = get_fs_ioc_flags(from,flags);
if(rv == -1)
return -1;
return set_fs_ioc_flags(to,flags);
}
}
}

37
src/fs_attr_unsupported.icpp Normal file
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@ -0,0 +1,37 @@
/*
Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <errno.h>
namespace fs
{
namespace attr
{
int
copy(const int fdin,
const int fdout)
{
return ENOTSUP;
}
int
copy(const string &from,
const string &to)
{
return ENOTSUP;
}
}
}