1/* Copyright (C) 1996-2023 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#ifndef _ALIASES_H
19#define _ALIASES_H 1
20
21#include <features.h>
22
23#include <sys/types.h>
24
25
26__BEGIN_DECLS
27
28/* Structure to represent one entry of the alias database. */
29struct aliasent
30 {
31 char *alias_name;
32 size_t alias_members_len;
33 char **alias_members;
34 int alias_local;
35 };
36
37
38/* Open alias data base files. */
39extern void setaliasent (void) __THROW;
40
41/* Close alias database files. */
42extern void endaliasent (void) __THROW;
43
44/* Get the next entry from the alias database. */
45extern struct aliasent *getaliasent (void) __THROW;
46
47/* Get the next entry from the alias database and put it in RESULT_BUF. */
48extern int getaliasent_r (struct aliasent *__restrict __result_buf,
49 char *__restrict __buffer, size_t __buflen,
50 struct aliasent **__restrict __result) __THROW;
51
52/* Get alias entry corresponding to NAME. */
53extern struct aliasent *getaliasbyname (const char *__name) __THROW;
54
55/* Get alias entry corresponding to NAME and put it in RESULT_BUF. */
56extern int getaliasbyname_r (const char *__restrict __name,
57 struct aliasent *__restrict __result_buf,
58 char *__restrict __buffer, size_t __buflen,
59 struct aliasent **__restrict __result) __THROW;
60
61__END_DECLS
62
63#endif /* aliases.h */
64