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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 1996-2021 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// This file is part of Octave.
//
// Octave is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Octave is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Octave; see the file COPYING. If not, see
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////
#if defined (HAVE_CONFIG_H)
# include "config.h"
#endif
#include <string>
#include <sys/types.h>
#include "oct-group.h"
#include "defun.h"
#include "error.h"
#include "errwarn.h"
#include "oct-map.h"
#include "ov.h"
#include "ovl.h"
#include "utils.h"
// Group file functions. (Why not?)
static octave_value
mk_gr_map (const octave::sys::group& gr)
{
if (gr)
{
octave_scalar_map m;
m.assign ("name", gr.name ());
m.assign ("passwd", gr.passwd ());
m.assign ("gid", static_cast<double> (gr.gid ()));
m.assign ("mem", octave_value (gr.mem ()));
return octave_value (m);
}
else
return octave_value (0);
}
DEFUN (getgrent, args, ,
doc: /* -*- texinfo -*-
@deftypefn {} {@var{grp_struct} =} getgrent ()
Return an entry from the group database, opening it if necessary.
Once the end of data has been reached, @code{getgrent} returns 0.
@seealso{setgrent, endgrent}
@end deftypefn */)
{
if (args.length () != 0)
print_usage ();
std::string msg;
// octave::sys::group::getgrent may set msg.
octave_value val = mk_gr_map (octave::sys::group::getgrent (msg));
return ovl (val, msg);
}
DEFUN (getgrgid, args, ,
doc: /* -*- texinfo -*-
@deftypefn {} {@var{grp_struct} =} getgrgid (@var{gid}).
Return the first entry from the group database with the group ID
@var{gid}.
If the group ID does not exist in the database, @code{getgrgid} returns 0.
@seealso{getgrnam}
@end deftypefn */)
{
if (args.length () != 1)
print_usage ();
double dval = args(0).double_value ();
if (octave::math::x_nint (dval) != dval)
error ("getgrgid: GID must be an integer");
gid_t gid = static_cast<gid_t> (dval);
std::string msg;
// octave::sys::group::getgrgid may set msg.
octave_value val = mk_gr_map (octave::sys::group::getgrgid (gid, msg));
return ovl (val, msg);
}
DEFUN (getgrnam, args, ,
doc: /* -*- texinfo -*-
@deftypefn {} {@var{grp_struct} =} getgrnam (@var{name})
Return the first entry from the group database with the group name
@var{name}.
If the group name does not exist in the database, @code{getgrnam} returns 0.
@seealso{getgrgid}
@end deftypefn */)
{
if (args.length () != 1)
print_usage ();
std::string s = args(0).string_value ();
std::string msg;
// octave::sys::group::getgrnam may set msg.
octave_value val = mk_gr_map (octave::sys::group::getgrnam (s.c_str (), msg));
return ovl (val, msg);
}
DEFUN (setgrent, args, ,
doc: /* -*- texinfo -*-
@deftypefn {} {} setgrent ()
Return the internal pointer to the beginning of the group database.
@seealso{getgrent, endgrent}
@end deftypefn */)
{
if (args.length () != 0)
print_usage ();
std::string msg;
// octave::sys::group::setgrent may set msg.
int status = octave::sys::group::setgrent (msg);
return ovl (static_cast<double> (status), msg);
}
DEFUN (endgrent, args, ,
doc: /* -*- texinfo -*-
@deftypefn {} {} endgrent ()
Close the group database.
@seealso{getgrent, setgrent}
@end deftypefn */)
{
if (args.length () != 0)
print_usage ();
std::string msg;
// octave::sys::group::endgrent may set msg.
int status = octave::sys::group::endgrent (msg);
return ovl (static_cast<double> (status), msg);
}
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