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2b778ceb | 1 | /* Copyright (C) 1996-2021 Free Software Foundation, Inc. |
01c901a5 | 2 | This file is part of the GNU C Library. |
d68171ed | 3 | |
01c901a5 | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
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. | |
d68171ed | 8 | |
01c901a5 UD |
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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
d68171ed | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
d68171ed | 17 | |
1cab5444 | 18 | #include <errno.h> |
a68b0d31 | 19 | #include <netdb.h> |
1cab5444 | 20 | #include <stdlib.h> |
ec999b8e | 21 | #include <libc-lock.h> |
d68171ed | 22 | |
c877418f RM |
23 | /* Static buffer for return value. We allocate it when needed. */ |
24 | libc_freeres_ptr (static char *buffer); | |
1cab5444 UD |
25 | /* All three strings should fit in a block of 1kB size. */ |
26 | #define BUFSIZE 1024 | |
27 | ||
28 | ||
29 | ||
30 | static void | |
31 | allocate (void) | |
32 | { | |
33 | buffer = (char *) malloc (BUFSIZE); | |
34 | } | |
d68171ed | 35 | |
d68171ed | 36 | int |
a68b0d31 | 37 | getnetgrent (char **hostp, char **userp, char **domainp) |
d68171ed | 38 | { |
1cab5444 UD |
39 | __libc_once_define (static, once); |
40 | __libc_once (once, allocate); | |
41 | ||
42 | if (buffer == NULL) | |
43 | { | |
44 | __set_errno (ENOMEM); | |
45 | return -1; | |
46 | } | |
d68171ed | 47 | |
1cab5444 | 48 | return __getnetgrent_r (hostp, userp, domainp, buffer, BUFSIZE); |
d68171ed | 49 | } |