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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 "errno.hpp"
#include "fs_close.hpp"
#include "fs_fgetxattr.hpp"
#include "fs_flistxattr.hpp"
#include "fs_fsetxattr.hpp"
#include "fs_lgetxattr.hpp"
#include "fs_llistxattr.hpp"
#include "fs_lremovexattr.hpp"
#include "fs_lsetxattr.hpp"
#include "fs_open.hpp"
#include "str.hpp"
#include <map>
#include <sstream>
#include <string>
#include <vector>
using std::string;
using std::vector;
using std::map;
using std::istringstream;
namespace fs
{
namespace xattr
{
int
list(const int fd_,
vector<char> *attrs_)
{
ssize_t rv;
rv = -1;
errno = ERANGE;
while((rv == -1) && (errno == ERANGE))
{
rv = fs::flistxattr(fd_,NULL,0);
if(rv <= 0)
return rv;
attrs_->resize(rv);
rv = fs::flistxattr(fd_,&(*attrs_)[0],rv);
}
return rv;
}
int
list(const string &path_,
vector<char> *attrs_)
{
ssize_t rv;
rv = -1;
errno = ERANGE;
while((rv == -1) && (errno == ERANGE))
{
rv = fs::llistxattr(path_,NULL,0);
if(rv <= 0)
return rv;
attrs_->resize(rv);
rv = fs::llistxattr(path_,&(*attrs_)[0],rv);
}
return rv;
}
int
list(const int fd_,
vector<string> *attrvector_)
{
int rv;
vector<char> attrs;
rv = fs::xattr::list(fd_,&attrs);
if(rv != -1)
{
string tmp(attrs.begin(),attrs.end());
str::split(tmp,'\0',attrvector_);
}
return rv;
}
int
list(const string &path_,
vector<string> *attrvector_)
{
int rv;
vector<char> attrs;
rv = fs::xattr::list(path_,&attrs);
if(rv != -1)
{
string tmp(attrs.begin(),attrs.end());
str::split(tmp,'\0',attrvector_);
}
return rv;
}
int
list(const int fd_,
string *attrstr_)
{
int rv;
vector<char> attrs;
rv = fs::xattr::list(fd_,&attrs);
if(rv != -1)
*attrstr_ = string(attrs.begin(),attrs.end());
return rv;
}
int
list(const string &path_,
string *attrstr_)
{
int rv;
vector<char> attrs;
rv = fs::xattr::list(path_,&attrs);
if(rv != -1)
*attrstr_ = string(attrs.begin(),attrs.end());
return rv;
}
int
get(const int fd_,
const string &attr_,
vector<char> *value_)
{
ssize_t rv;
rv = -1;
errno = ERANGE;
while((rv == -1) && (errno == ERANGE))
{
rv = fs::fgetxattr(fd_,attr_,NULL,0);
if(rv <= 0)
return rv;
value_->resize(rv);
rv = fs::fgetxattr(fd_,attr_,&(*value_)[0],rv);
}
return rv;
}
int
get(const string &path_,
const string &attr_,
vector<char> *value_)
{
ssize_t rv;
rv = -1;
errno = ERANGE;
while((rv == -1) && (errno == ERANGE))
{
rv = fs::lgetxattr(path_,attr_,NULL,0);
if(rv <= 0)
return rv;
value_->resize(rv);
rv = fs::lgetxattr(path_,attr_,&(*value_)[0],rv);
}
return rv;
}
int
get(const int fd_,
const string &attr_,
string *value_)
{
int rv;
vector<char> tmpvalue;
rv = get(fd_,attr_,&tmpvalue);
if(rv != -1)
*value_ = string(tmpvalue.begin(),tmpvalue.end());
return rv;
}
int
get(const string &path_,
const string &attr_,
string *value_)
{
int rv;
vector<char> tmpvalue;
rv = fs::xattr::get(path_,attr_,&tmpvalue);
if(rv != -1)
*value_ = string(tmpvalue.begin(),tmpvalue.end());
return rv;
}
int
get(const int fd_,
map<string,string> *attrs_)
{
int rv;
string attrstr;
rv = fs::xattr::list(fd_,&attrstr);
if(rv == -1)
return -1;
{
string key;
istringstream ss(attrstr);
while(getline(ss,key,'\0'))
{
string value;
rv = fs::xattr::get(fd_,key,&value);
if(rv != -1)
(*attrs_)[key] = value;
}
}
return 0;
}
int
get(const string &path_,
map<string,string> *attrs_)
{
int rv;
string attrstr;
rv = fs::xattr::list(path_,&attrstr);
if(rv == -1)
return -1;
{
string key;
istringstream ss(attrstr);
while(getline(ss,key,'\0'))
{
string value;
rv = fs::xattr::get(path_,key,&value);
if(rv != -1)
(*attrs_)[key] = value;
}
}
return 0;
}
int
set(const int fd_,
const string &key_,
const string &value_,
const int flags_)
{
return fs::fsetxattr(fd_,
key_,
value_.data(),
value_.size(),
flags_);
}
int
set(const string &path_,
const string &key_,
const string &value_,
const int flags_)
{
return fs::lsetxattr(path_,
key_,
value_.data(),
value_.size(),
flags_);
}
int
set(const int fd_,
const map<string,string> &attrs_)
{
int rv;
for(map<string,string>::const_iterator
i = attrs_.begin(), ei = attrs_.end(); i != ei; ++i)
{
rv = fs::xattr::set(fd_,i->first,i->second,0);
if(rv == -1)
return -1;
}
return 0;
}
int
set(const string &path_,
const map<string,string> &attrs_)
{
int fd;
fd = fs::open(path_,O_RDONLY|O_NONBLOCK);
if(fd == -1)
return -1;
fs::xattr::set(fd,attrs_);
return fs::close(fd);
}
int
copy(const int fdin_,
const int fdout_)
{
int rv;
map<string,string> attrs;
rv = fs::xattr::get(fdin_,&attrs);
if(rv == -1)
return -1;
return fs::xattr::set(fdout_,attrs);
}
int
copy(const string &from_,
const string &to_)
{
int rv;
map<string,string> attrs;
rv = fs::xattr::get(from_,&attrs);
if(rv == -1)
return -1;
return fs::xattr::set(to_,attrs);
}
}
}