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