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111 lines
2.6 KiB
111 lines
2.6 KiB
/*
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Copyright (c) 2018, 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 "category.hpp"
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#include "config.hpp"
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#include "errno.hpp"
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#include "fs_llistxattr.hpp"
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#include "fs_path.hpp"
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#include "ugid.hpp"
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#include "xattr.hpp"
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#include "fuse.h"
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#include <string>
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#include <string.h>
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using std::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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listxattr_controlfile(Config::Read &cfg_,
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char *list_,
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const size_t size_)
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{
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string xattrs;
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cfg_->keys_xattr(xattrs);
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if(size_ == 0)
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return xattrs.size();
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if(size_ < xattrs.size())
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return -ERANGE;
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memcpy(list_,xattrs.c_str(),xattrs.size());
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return xattrs.size();
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}
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static
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int
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listxattr(const Policy::Search &searchFunc_,
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const Branches &branches_,
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const char *fusepath_,
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char *list_,
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const size_t size_)
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{
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int rv;
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string fullpath;
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StrVec basepaths;
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rv = searchFunc_(branches_,fusepath_,&basepaths);
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if(rv == -1)
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return -errno;
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fullpath = fs::path::make(basepaths[0],fusepath_);
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rv = fs::llistxattr(fullpath,list_,size_);
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return ((rv == -1) ? -errno : rv);
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}
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}
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namespace FUSE
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{
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int
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listxattr(const char *fusepath_,
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char *list_,
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size_t size_)
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{
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Config::Read cfg;
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if(fusepath_ == CONTROLFILE)
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return l::listxattr_controlfile(cfg,list_,size_);
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switch(cfg->xattr)
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{
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case XAttr::ENUM::PASSTHROUGH:
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break;
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case XAttr::ENUM::NOATTR:
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return 0;
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case XAttr::ENUM::NOSYS:
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return -ENOSYS;
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}
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const fuse_context *fc = fuse_get_context();
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const ugid::Set ugid(fc->uid,fc->gid);
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return l::listxattr(cfg->func.listxattr.policy,
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cfg->branches,
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fusepath_,
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list_,
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size_);
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}
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}
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