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/*
Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link>
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_rmdir.hpp"
#include "fs_unlink.hpp"
#include "ugid.hpp"
#include "fuse.h"
#include <string>
#include <unistd.h>
using std::string;
using std::vector;
namespace error
{
static
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
should_unlink(int rv_,
int errno_,
FollowSymlinks followsymlinks_)
{
return ((rv_ == -1) &&
(errno_ == ENOTDIR) &&
(followsymlinks_ != FollowSymlinks::ENUM::NEVER));
}
static
int
rmdir_core(const string &basepath_,
const char *fusepath_,
const FollowSymlinks followsymlinks_,
const int error_)
{
int rv;
string fullpath;
fullpath = fs::path::make(basepath_,fusepath_);
rv = fs::rmdir(fullpath);
if(l::should_unlink(rv,errno,followsymlinks_))
rv = fs::unlink(fullpath);
return error::calc(rv,error_,errno);
}
static
int
rmdir_loop(const StrVec &basepaths_,
const char *fusepath_,
const FollowSymlinks followsymlinks_)
{
int error;
error = 0;
for(size_t i = 0, ei = basepaths_.size(); i != ei; i++)
{
error = l::rmdir_core(basepaths_[i],fusepath_,followsymlinks_,error);
}
return -error;
}
static
int
rmdir(const Policy::Action &actionFunc_,
const Branches &branches_,
const FollowSymlinks followsymlinks_,
const char *fusepath_)
{
int rv;
vector<string> basepaths;
rv = actionFunc_(branches_,fusepath_,&basepaths);
if(rv == -1)
return -errno;
return l::rmdir_loop(basepaths,fusepath_,followsymlinks_);
}
}
namespace FUSE
{
int
rmdir(const char *fusepath_)
{
Config::Read cfg;
const fuse_context *fc = fuse_get_context();
const ugid::Set ugid(fc->uid,fc->gid);
return l::rmdir(cfg->func.rmdir.policy,
cfg->branches,
cfg->follow_symlinks,
fusepath_);
}
}