/* Copyright (c) 2019, Antonio SJ Musumeci 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 "config.hpp" #include "errno.hpp" #include "fs_path.hpp" #include "fs_unlink.hpp" #include "ugid.hpp" #include "fuse.h" #include #include #include using std::string; using std::vector; namespace error { static inline int calc(const int rv_, const int prev_, const int cur_) { if(prev_ != 0) return prev_; if(rv_ == -1) return cur_; return 0; } } namespace l { static int unlink_loop_core(const string &basepath_, const char *fusepath_, const int error_) { int rv; string fullpath; fullpath = fs::path::make(basepath_,fusepath_); rv = fs::unlink(fullpath); return error::calc(rv,error_,errno); } static int unlink_loop(const vector &basepaths_, const char *fusepath_) { int error; error = 0; for(size_t i = 0, ei = basepaths_.size(); i != ei; i++) { error = l::unlink_loop_core(basepaths_[i],fusepath_,error); } return -error; } static int unlink(const Policy::Action &unlinkPolicy_, const Branches &branches_, const char *fusepath_) { int rv; vector basepaths; rv = unlinkPolicy_(branches_,fusepath_,&basepaths); if(rv == -1) return -errno; return l::unlink_loop(basepaths,fusepath_); } } namespace FUSE { int unlink(const char *fusepath_) { Config::Read cfg; const fuse_context *fc = fuse_get_context(); const ugid::Set ugid(fc->uid,fc->gid); return l::unlink(cfg->func.unlink.policy, cfg->branches, fusepath_); } }