1/* Group merging implementation.
2 Copyright (C) 2016-2021 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, see
17 <https://www.gnu.org/licenses/>. */
18
19#ifndef _GRP_MERGE_H
20#define _GRP_MERGE_H 1
21
22#include <grp.h>
23
24/* Duplicate a grp struct (and its members). When no longer needed, the
25 calling function must free(newbuf). */
26int
27__copy_grp (const struct group srcgrp, const size_t buflen,
28 struct group *destgrp, char *destbuf, char **endptr);
29
30/* Merge the member lists of two grp structs together. */
31int
32__merge_grp (struct group *savedgrp, char *savedbuf, char *savedend,
33 size_t buflen, struct group *mergegrp, char *mergebuf);
34
35#endif /* _GRP_MERGE_H */
36