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28f540f4 RM |
1 | /* Copyright (C) 1991, 1995 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
8 | ||
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 | |
12 | Library General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Library General Public | |
15 | License along with the GNU C Library; see the file COPYING.LIB. If | |
16 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
17 | Cambridge, MA 02139, USA. */ | |
18 | ||
19 | #include <ansidecl.h> | |
20 | #include <errno.h> | |
21 | #include <unistd.h> | |
22 | #include <stddef.h> | |
23 | ||
24 | /* Read NBYTES into BUF from FD. Return the number read or -1. */ | |
25 | ssize_t | |
26 | DEFUN(__read, (fd, buf, nbytes), | |
27 | int fd AND PTR buf AND size_t nbytes) | |
28 | { | |
29 | if (nbytes == 0) | |
30 | return 0; | |
31 | if (fd < 0) | |
32 | { | |
33 | errno = EBADF; | |
34 | return -1; | |
35 | } | |
36 | if (buf == NULL) | |
37 | { | |
38 | errno = EINVAL; | |
39 | return -1; | |
40 | } | |
41 | ||
42 | errno = ENOSYS; | |
43 | return -1; | |
44 | } | |
45 | stub_warning (read) | |
46 | ||
47 | weak_alias (__read, read) |