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- /* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C 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.
-
- The GNU C 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 the GNU C Library; see the file COPYING.LIB. If
- not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- /*
- * POSIX Standard: 9.2.1 Group Database Access <grp.h>
- */
-
- #ifndef _GRP_H
-
- #define _GRP_H 1
- #include <features.h>
-
- __BEGIN_DECLS
-
- #include <gnu/types.h>
-
-
- /* The group structure. */
- struct group
- {
- char *gr_name; /* Group name. */
- char *gr_passwd; /* Password. */
- __gid_t gr_gid; /* Group ID. */
- char **gr_mem; /* Member list. */
- };
-
-
- #if defined(__USE_SVID) || defined(__USE_GNU)
- #define __need_FILE
- #include <stdio.h>
- #endif
-
- #ifdef __USE_GNU
- /* Return a new stream open on the group file. */
- extern FILE *__grpopen __P ((void));
-
- /* Read a group entry from STREAM, filling in G.
- Return the `struct group' of G if successful, NULL on failure. */
- extern struct group *__grpread __P ((FILE * __stream, __ptr_t __g));
-
- /* Return a chunk of memory containing pre-initialized data for __grpread. */
- extern __ptr_t __grpalloc __P ((void));
- #endif
-
-
- #if defined(__USE_SVID) || defined(__USE_MISC) || defined (__USE_BSD)
- /* Rewind the group-file stream. */
- extern void setgrent __P ((void));
-
- /* Close the group-file stream. */
- extern void endgrent __P ((void));
-
- /* Read an entry from the group-file stream, opening it if necessary. */
- extern struct group *getgrent __P ((void));
- #endif
-
- #ifdef __USE_SVID
- /* Read a group entry from STREAM. */
- extern struct group *fgetgrent __P ((FILE * __stream));
- #endif
-
- /* Search for an entry with a matching group ID. */
- extern struct group *getgrgid __P ((__gid_t __gid));
-
- /* Search for an entry with a matching group name. */
- extern struct group *getgrnam __P ((__const char *__name));
-
-
- #ifdef __USE_BSD
-
- #define __need_size_t
- #include <stddef.h>
-
- /* Set the group set for the current user to GROUPS (N of them). */
- extern int setgroups __P ((size_t __n, __const __gid_t * groups));
-
- /* Initialize the group set for the current user
- by reading the group database and using all groups
- of which USER is a member. Also include GROUP. */
- extern int initgroups __P ((__const char *user, __gid_t group));
-
- #endif /* Use BSD. */
-
- __END_DECLS
-
- #endif /* grp.h */
-