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1 | /* Copyright (C) 1993, 1995, 1996, 1997 Free Software Foundation, Inc. |
2 | This file is part of the GNU IO Library. | |
96aa2d94 | 3 | |
40a55d20 UD |
4 | This library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU General Public License as | |
6 | published by the Free Software Foundation; either version 2, or (at | |
7 | your option) any later version. | |
96aa2d94 | 8 | |
40a55d20 UD |
9 | This library is distributed in the hope that it will be useful, but |
10 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | General Public License for more details. | |
96aa2d94 | 13 | |
40a55d20 UD |
14 | You should have received a copy of the GNU General Public License |
15 | along with this library; see the file COPYING. If not, write to | |
16 | the Free Software Foundation, 59 Temple Place - Suite 330, Boston, | |
17 | MA 02111-1307, USA. | |
96aa2d94 | 18 | |
40a55d20 UD |
19 | As a special exception, if you link this library with files |
20 | compiled with a GNU compiler to produce an executable, this does | |
21 | not cause the resulting executable to be covered by the GNU General | |
22 | Public License. This exception does not however invalidate any | |
23 | other reasons why the executable file might be covered by the GNU | |
24 | General Public License. */ | |
96aa2d94 RM |
25 | |
26 | #include "libioP.h" | |
a68b0d31 | 27 | #include <stdio.h> |
96aa2d94 | 28 | |
40a55d20 | 29 | char * |
96aa2d94 | 30 | _IO_fgets (buf, n, fp) |
40a55d20 | 31 | char *buf; |
96aa2d94 | 32 | int n; |
40a55d20 | 33 | _IO_FILE *fp; |
96aa2d94 RM |
34 | { |
35 | _IO_size_t count; | |
7c713e28 | 36 | char *result; |
96aa2d94 RM |
37 | CHECK_FILE (fp, NULL); |
38 | if (n <= 0) | |
39 | return NULL; | |
68dbb3a6 | 40 | _IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp); |
11336c16 | 41 | _IO_flockfile (fp); |
96aa2d94 RM |
42 | count = _IO_getline (fp, buf, n - 1, '\n', 1); |
43 | if (count == 0 || (fp->_IO_file_flags & _IO_ERR_SEEN)) | |
7c713e28 RM |
44 | result = NULL; |
45 | else | |
46 | { | |
47 | buf[count] = '\0'; | |
48 | result = buf; | |
49 | } | |
68dbb3a6 | 50 | _IO_cleanup_region_end (1); |
7c713e28 | 51 | return result; |
96aa2d94 RM |
52 | } |
53 | ||
ca34d7a7 | 54 | #ifdef weak_alias |
96aa2d94 | 55 | weak_alias (_IO_fgets, fgets) |
ca34d7a7 | 56 | #endif |