busybox/include/grp_.h
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   1/* vi: set sw=4 ts=4: */
   2/* Copyright (C) 1991,92,95,96,97,98,99,2000,01 Free Software Foundation, Inc.
   3   This file is part of the GNU C Library.
   4
   5   The GNU C Library is free software; you can redistribute it and/or
   6   modify it under the terms of the GNU Lesser General Public
   7   License as published by the Free Software Foundation; either
   8   version 2.1 of the License, or (at your option) any later version.
   9
  10   The GNU C Library is distributed in the hope that it will be useful,
  11   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13   Lesser General Public License for more details.
  14
  15   You should have received a copy of the GNU Lesser General Public
  16   License along with the GNU C Library; if not, write to the Free
  17   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18   02111-1307 USA.
  19 */
  20/*
  21 * POSIX Standard: 9.2.1 Group Database Access  <grp.h>
  22 */
  23#ifndef BB_GRP_H
  24#define BB_GRP_H 1
  25
  26PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
  27
  28/* This file is #included after #include <grp.h>
  29 * We will use libc-defined structures, but will #define function names
  30 * so that function calls are directed to bb_internal_XXX replacements
  31 */
  32#undef endgrent
  33#define endgrent     bb_internal_endgrent
  34#define getgrgid     bb_internal_getgrgid
  35#define getgrnam     bb_internal_getgrnam
  36#define getgrouplist bb_internal_getgrouplist
  37#define initgroups   bb_internal_initgroups
  38
  39/* All function names below should be remapped by #defines above
  40 * in order to not collide with libc names. */
  41
  42/* Close the group-file stream.  */
  43void FAST_FUNC endgrent(void);
  44
  45/* Search for an entry with a matching group ID.  */
  46struct group* FAST_FUNC getgrgid(gid_t __gid);
  47
  48/* Search for an entry with a matching group name.  */
  49struct group* FAST_FUNC getgrnam(const char *__name);
  50
  51/* Reentrant versions of some of the functions above. */
  52
  53/* Store at most *NGROUPS members of the group set for USER into
  54   *GROUPS.  Also include GROUP.  The actual number of groups found is
  55   returned in *NGROUPS.  Return -1 if the if *NGROUPS is too small.  */
  56int FAST_FUNC getgrouplist(const char *__user, gid_t __group,
  57                gid_t *__groups, int *__ngroups);
  58
  59/* Initialize the group set for the current user
  60   by reading the group database and using all groups
  61   of which USER is a member.  Also include GROUP.  */
  62int FAST_FUNC initgroups(const char *__user, gid_t __group);
  63
  64POP_SAVED_FUNCTION_VISIBILITY
  65
  66#endif
  67