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/*
Copyright (C) 1996-2013 John W. Eaton
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
<http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/types.h>
#ifdef HAVE_GRP_H
#include <grp.h>
#endif
#include "lo-error.h"
#include "oct-group.h"
#include "str-vec.h"
#define NOT_SUPPORTED(nm) \
nm ": not supported on this system"
std::string
octave_group::name (void) const
{
if (! ok ())
gripe_invalid ();
return gr_name;
}
std::string
octave_group::passwd (void) const
{
if (! ok ())
gripe_invalid ();
return gr_passwd;
}
gid_t
octave_group::gid (void) const
{
if (! ok ())
gripe_invalid ();
return gr_gid;
}
string_vector
octave_group::mem (void) const
{
if (! ok ())
gripe_invalid ();
return gr_mem;
}
octave_group
octave_group::getgrent (void)
{
std::string msg;
return getgrent (msg);
}
octave_group
octave_group::getgrent (std::string& msg)
{
#if defined (HAVE_GETGRENT)
msg = std::string ();
return octave_group (::getgrent (), msg);
#else
msg = NOT_SUPPORTED ("getgrent");
return octave_group ();
#endif
}
octave_group
octave_group::getgrgid (gid_t gid)
{
std::string msg;
return getgrgid (gid, msg);
}
octave_group
octave_group::getgrgid (gid_t gid, std::string& msg)
{
#if defined (HAVE_GETGRGID)
msg = std::string ();
return octave_group (::getgrgid (gid), msg);
#else
msg = NOT_SUPPORTED ("getgruid");
return octave_group ();
#endif
}
octave_group
octave_group::getgrnam (const std::string& nm)
{
std::string msg;
return getgrnam (nm, msg);
}
octave_group
octave_group::getgrnam (const std::string& nm, std::string& msg)
{
#if defined (HAVE_GETGRNAM)
msg = std::string ();
return octave_group (::getgrnam (nm.c_str ()), msg);
#else
msg = NOT_SUPPORTED ("getgrnam");
return octave_group ();
#endif
}
int
octave_group::setgrent (void)
{
std::string msg;
return setgrent (msg);
}
int
octave_group::setgrent (std::string& msg)
{
#if defined (HAVE_SETGRENT)
msg = std::string ();
::setgrent ();
return 0;
#else
msg = NOT_SUPPORTED ("setgrent");
return -1;
#endif
}
int
octave_group::endgrent (void)
{
std::string msg;
return endgrent (msg);
}
int
octave_group::endgrent (std::string& msg)
{
#if defined (HAVE_ENDGRENT)
msg = std::string ();
::endgrent ();
return 0;
#else
msg = NOT_SUPPORTED ("endgrent");
return -1;
#endif
}
octave_group::octave_group (void *p, std::string& msg)
: gr_name (), gr_passwd (), gr_gid (0), gr_mem (), valid (false)
{
#if defined (HAVE_GRP_H)
msg = std::string ();
if (p)
{
struct group *gr = static_cast<struct group *> (p);
gr_name = gr->gr_name;
#if defined (HAVE_GR_PASSWD)
gr_passwd = gr->gr_passwd;
#endif
gr_gid = gr->gr_gid;
// FIXME: Maybe there should be a string_vector constructor
// that takes a NUL terminated list of C strings?
const char * const *tmp = gr->gr_mem;
int k = 0;
while (*tmp++)
k++;
if (k > 0)
{
tmp = gr->gr_mem;
gr_mem.resize (k);
for (int i = 0; i < k; i++)
gr_mem[i] = tmp[i];
}
valid = true;
}
#else
msg = NOT_SUPPORTED ("group functions");
#endif
}
void
octave_group::gripe_invalid (void) const
{
(*current_liboctave_error_handler) ("invalid group object");
}
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