99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/* Copyright (C) 1991 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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/*
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* POSIX Standard: 9.2.1 Group Database Access <grp.h>
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*/
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#ifndef _GRP_H
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#define _GRP_H 1
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#include <features.h>
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#include <gnu/types.h>
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/* The group structure. */
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struct group
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{
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char *gr_name; /* Group name. */
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char *gr_passwd; /* Password. */
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__gid_t gr_gid; /* Group ID. */
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char **gr_mem; /* Member list. */
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};
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#if defined(__USE_SVID) || defined(__USE_GNU)
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#define __need_FILE
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#include <stdio.h>
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#endif
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#ifdef __USE_GNU
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/* Return a new stream open on the group file. */
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extern FILE *EXFUN(__grpopen, (NOARGS));
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/* Read a group entry from STREAM, filling in G.
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Return the `struct group' of G if successful, NULL on failure. */
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extern struct group *EXFUN(__grpread, (FILE *__stream, PTR __g));
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/* Return a chunk of memory containing pre-initialized data for __grpread. */
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extern PTR EXFUN(__grpalloc, (NOARGS));
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#endif
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#if defined(__USE_SVID) || defined(__USE_MISC)
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/* Rewind the group-file stream. */
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extern void EXFUN(setgrent, (NOARGS));
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/* Close the group-file stream. */
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extern void EXFUN(endgrent, (NOARGS));
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/* Read an entry from the group-file stream, opening it if necessary. */
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extern struct group *EXFUN(getgrent, (NOARGS));
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#endif
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#ifdef __USE_SVID
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/* Read a group entry from STREAM. */
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extern struct group *EXFUN(fgetgrent, (FILE *__stream));
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#endif
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/* Search for an entry with a matching group ID. */
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extern struct group *EXFUN(getgrgid, (__gid_t __gid));
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/* Search for an entry with a matching group name. */
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extern struct group *EXFUN(getgrnam, (CONST char *__name));
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#ifdef __USE_BSD
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#define __need_size_t
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#include <stddef.h>
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/* Set the group set for the current user to GROUPS (N of them). */
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extern int EXFUN(setgroups, (size_t __n, CONST __gid_t *groups));
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/* Initialize the group set for the current user
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by reading the group database and using all groups
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of which USER is a member. Also include GROUP. */
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extern int EXFUN(initgroups, (CONST char *user, __gid_t group));
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#endif /* Use BSD. */
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#endif /* grp.h */
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