1/* Linux read syscall implementation.
2 Copyright (C) 2017-2018 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C 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 GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <unistd.h>
20#include <sysdep-cancel.h>
21#include <not-cancel.h>
22
23/* Read NBYTES into BUF from FD. Return the number read or -1. */
24ssize_t
25__libc_read (int fd, void *buf, size_t nbytes)
26{
27 return SYSCALL_CANCEL (read, fd, buf, nbytes);
28}
29libc_hidden_def (__libc_read)
30
31libc_hidden_def (__read)
32weak_alias (__libc_read, __read)
33libc_hidden_def (read)
34weak_alias (__libc_read, read)
35
36#if !IS_IN (rtld)
37ssize_t
38__read_nocancel (int fd, void *buf, size_t nbytes)
39{
40 return INLINE_SYSCALL_CALL (read, fd, buf, nbytes);
41}
42#else
43strong_alias (__libc_read, __read_nocancel)
44#endif
45libc_hidden_def (__read_nocancel)
46