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117 lines
2.9 KiB
117 lines
2.9 KiB
/*
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The MIT License (MIT)
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Copyright (c) 2015 Antonio SJ Musumeci <trapexit@spawn.link>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string>
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#include "fs_path.hpp"
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#include "fs_attr.hpp"
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#include "fs_xattr.hpp"
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using std::string;
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namespace fs
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{
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static
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bool
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ignorable_error(const int err)
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{
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switch(err)
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{
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case ENOTTY:
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case ENOTSUP:
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#if ENOTSUP != EOPNOTSUPP
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case EOPNOTSUPP:
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#endif
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return true;
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}
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return false;
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}
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int
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clonepath(const string &fromsrc,
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const string &tosrc,
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const string &relative)
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{
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int rv;
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struct stat st;
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string topath;
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string frompath;
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string dirname;
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dirname = fs::path::dirname(relative);
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if(!dirname.empty())
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{
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rv = clonepath(fromsrc,tosrc,dirname);
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if(rv == -1)
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return -1;
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}
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fs::path::make(fromsrc,relative,frompath);
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rv = ::stat(frompath.c_str(),&st);
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if(rv == -1)
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return -1;
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else if(!S_ISDIR(st.st_mode))
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return (errno = ENOTDIR,-1);
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fs::path::make(tosrc,relative,topath);
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rv = ::mkdir(topath.c_str(),st.st_mode);
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if(rv == -1)
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{
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if(errno != EEXIST)
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return -1;
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rv = ::chmod(topath.c_str(),st.st_mode);
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if(rv == -1)
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return -1;
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}
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// It may not support it... it's fine...
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rv = fs::attr::copy(frompath,topath);
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if(rv == -1 && !ignorable_error(errno))
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return -1;
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rv = fs::xattr::copy(frompath,topath);
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if(rv == -1 && !ignorable_error(errno))
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return -1;
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rv = ::chown(topath.c_str(),st.st_uid,st.st_gid);
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if(rv == -1)
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return -1;
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struct timespec times[2];
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times[0] = st.st_atim;
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times[1] = st.st_mtim;
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rv = ::utimensat(-1,topath.c_str(),times,0);
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if(rv == -1)
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return -1;
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return 0;
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}
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}
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