| 1 | /* Copyright (C) 1996-2024 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include <errno.h> |
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| 19 | #include <netdb.h> |
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| 20 | #include <stdlib.h> |
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| 21 | #include <libc-lock.h> |
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| 22 | #include <set-freeres.h> |
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| 23 | |
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| 24 | /* Static buffer for return value. We allocate it when needed. */ |
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| 25 | static char *buffer; |
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| 26 | /* All three strings should fit in a block of 1kB size. */ |
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| 27 | #define BUFSIZE 1024 |
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| 28 | |
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| 29 | |
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| 30 | |
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| 31 | static void |
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| 32 | allocate (void) |
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| 33 | { |
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| 34 | buffer = (char *) malloc (BUFSIZE); |
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| 35 | } |
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| 36 | |
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| 37 | int |
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| 38 | getnetgrent (char **hostp, char **userp, char **domainp) |
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| 39 | { |
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| 40 | __libc_once_define (static, once); |
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| 41 | __libc_once (once, allocate); |
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| 42 | |
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| 43 | if (buffer == NULL) |
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| 44 | { |
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| 45 | __set_errno (ENOMEM); |
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| 46 | return -1; |
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| 47 | } |
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| 48 | |
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| 49 | return __getnetgrent_r (hostp: hostp, userp: userp, domainp: domainp, buffer: buffer, BUFSIZE); |
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| 50 | } |
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| 51 | |
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| 52 | weak_alias (buffer, __libc_getnetgrent_freemem_ptr) |
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| 53 | |
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