Subversion Repositories or1k

/*

 * grent.c - This file is part of the libc-8086/grp package for ELKS,

 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.

 *

 *  This library is free software; you can redistribute it and/or

 *  modify it under the terms of the GNU Library General Public

 *  License as published by the Free Software Foundation; either

 *  version 2 of the License, or (at your option) any later version.

 *

 *  This library 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

 *  Library General Public License for more details.

 *

 *  You should have received a copy of the GNU Library General Public

 *  License along with this library; if not, write to the Free

 *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 *

 */

/*

 * setgrent(), endgrent(), and getgrent() are mutually-dependent functions,

 * so they are all included in the same object file, and thus all linked

 * in together.

 */

#include <unistd.h>

#include <fcntl.h>

#include <grp.h>

static int grp_fd=-1;

void

setgrent(void)

{

  if (grp_fd!=-1)

    close(grp_fd);

  grp_fd=open("/etc/group", O_RDONLY);

}

void

endgrent(void)

{

 if (grp_fd!=-1)

   close(grp_fd);

 grp_fd=-1;

}

struct group *

getgrent(void)

{

  if (grp_fd==-1)

    return NULL;

  return __getgrent(grp_fd);

}