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102 lines
2.3 KiB
102 lines
2.3 KiB
#pragma once
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#include "follow_symlinks_enum.hpp"
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#include "to_cstr.hpp"
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#include "to_neg_errno.hpp"
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#include "fuse_kernel.h"
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#include <string>
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#include <fcntl.h>
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#include <sys/stat.h>
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#include "supported_statx.hpp"
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namespace fs
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{
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template<typename PathType>
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static
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inline
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int
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statx(const int dirfd_,
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const PathType &pathname_,
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const int flags_,
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const unsigned int mask_,
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struct fuse_statx *st_)
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{
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#ifdef MERGERFS_SUPPORTED_STATX
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int rv;
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rv = ::statx(dirfd_,
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to_cstr(pathname_),
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flags_,
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mask_,
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(struct statx*)st_);
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return ::to_neg_errno(rv);
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#else
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return -ENOSYS;
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#endif
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}
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template<typename PathType>
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static
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inline
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int
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statx(const int dirfd_,
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const PathType &pathname_,
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const int flags_,
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const unsigned int mask_,
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struct fuse_statx *st_,
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FollowSymlinksEnum followsymlinks_)
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{
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int rv;
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switch(followsymlinks_)
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{
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case FollowSymlinksEnum::NEVER:
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rv = fs::statx(AT_FDCWD,pathname_,flags_|AT_SYMLINK_NOFOLLOW,mask_,st_);
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return rv;
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case FollowSymlinksEnum::DIRECTORY:
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rv = fs::statx(AT_FDCWD,pathname_,flags_|AT_SYMLINK_NOFOLLOW,mask_,st_);
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if((rv >= 0) && S_ISLNK(st_->mode))
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{
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struct fuse_statx st;
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rv = fs::statx(AT_FDCWD,pathname_,AT_SYMLINK_FOLLOW,STATX_TYPE,&st);
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if(rv < 0)
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return rv;
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if(S_ISDIR(st.mode))
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*st_ = st;
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}
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return rv;
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case FollowSymlinksEnum::REGULAR:
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rv = fs::statx(AT_FDCWD,pathname_,flags_|AT_SYMLINK_NOFOLLOW,mask_,st_);
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if((rv >= 0) && S_ISLNK(st_->mode))
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{
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struct fuse_statx st;
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rv = fs::statx(AT_FDCWD,pathname_,AT_SYMLINK_FOLLOW,STATX_TYPE,&st);
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if(rv < 0)
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return rv;
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if(S_ISREG(st.mode))
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*st_ = st;
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}
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return rv;
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case FollowSymlinksEnum::ALL:
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rv = fs::statx(AT_FDCWD,pathname_,flags_|AT_SYMLINK_FOLLOW,mask_,st_);
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if(rv < 0)
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rv = fs::statx(AT_FDCWD,pathname_,flags_|AT_SYMLINK_NOFOLLOW,mask_,st_);
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return rv;
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}
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return -ENOENT;
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}
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}
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