glibc (2.38)
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. */
29 struct 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. */
39 extern void setaliasent (void) __THROW;
40
41 /* Close alias database files. */
42 extern void endaliasent (void) __THROW;
43
44 /* Get the next entry from the alias database. */
45 extern struct aliasent *getaliasent (void) __THROW;
46
47 /* Get the next entry from the alias database and put it in RESULT_BUF. */
48 extern 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. */
53 extern struct aliasent *getaliasbyname (const char *__name) __THROW;
54
55 /* Get alias entry corresponding to NAME and put it in RESULT_BUF. */
56 extern 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 */
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