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77 lines
1.9 KiB
77 lines
1.9 KiB
/*
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ISC License
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Copyright (c) 2020, Antonio SJ Musumeci <trapexit@spawn.link>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "branches.hpp"
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#include "errno.hpp"
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#include "fs_fstat.hpp"
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#include "fs_lstat.hpp"
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#include "fs_path.hpp"
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#include <string>
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namespace l
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{
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static
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int
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findonfs(const Branches::CPtr &branches_,
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const std::string &fusepath_,
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const int fd_,
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std::string *basepath_)
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{
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int rv;
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dev_t dev;
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struct stat st;
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std::string fullpath;
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rv = fs::fstat(fd_,&st);
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if(rv == -1)
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return -1;
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dev = st.st_dev;
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for(const auto &branch : *branches_)
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{
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fullpath = fs::path::make(branch.path,fusepath_);
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rv = fs::lstat(fullpath,&st);
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if(rv == -1)
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continue;
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if(st.st_dev != dev)
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continue;
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*basepath_ = branch.path;
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return 0;
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}
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return (errno=ENOENT,-1);
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}
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}
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namespace fs
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{
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int
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findonfs(const Branches::CPtr &branches_,
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const std::string &fusepath_,
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const int fd_,
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std::string *basepath_)
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{
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return l::findonfs(branches_,fusepath_,fd_,basepath_);
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}
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}
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