1 | /* Copyright (C) 1996, 1997, 2000, 2002 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, write to the Free |
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16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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17 | 02111-1307 USA. */ |
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18 | |
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19 | #include <errno.h> |
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20 | #include <netdb.h> |
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21 | #include <stdlib.h> |
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22 | #define _IO_MTSAFE_IO |
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23 | #include <bits/libc-lock.h> |
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24 | #include "libc-symbols.h" |
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25 | |
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26 | /* Static buffer for return value. We allocate it when needed. */ |
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27 | libc_freeres_ptr (static char *buffer); |
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28 | /* All three strings should fit in a block of 1kB size. */ |
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29 | #define BUFSIZE 1024 |
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30 | |
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31 | |
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32 | |
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33 | static void |
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34 | allocate (void) |
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35 | { |
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36 | buffer = (char *) malloc (BUFSIZE); |
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37 | } |
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38 | |
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39 | int |
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40 | getnetgrent (char **hostp, char **userp, char **domainp) |
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41 | { |
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42 | __libc_once_define (static, once); |
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43 | __libc_once (once, allocate); |
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44 | |
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45 | if (buffer == NULL) |
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46 | { |
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47 | __set_errno (ENOMEM); |
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48 | return -1; |
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49 | } |
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50 | |
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51 | return __getnetgrent_r (hostp, userp, domainp, buffer, BUFSIZE); |
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52 | } |
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