1 /*-
2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Chris Torek.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)getchar.c 8.1 (Berkeley) 6/4/93
33 * $FreeBSD: src/lib/libc/stdio/getchar.c,v 1.15 2008/05/05 16:03:52 jhb Exp $
34 * $DragonFly: src/lib/libc/stdio/getchar.c,v 1.5 2005/08/27 21:35:01 joerg Exp $
35 */
36
37 /*
38 * A subroutine version of the macro getchar.
39 */
40 #include "namespace.h"
41 #include <stdio.h>
42 #include "un-namespace.h"
43 #include "local.h"
44 #include "libc_private.h"
45
46 #undef getchar
47 #undef getchar_unlocked
48
49 int
getchar(void)50 getchar(void)
51 {
52 int retval;
53 FLOCKFILE(stdin);
54 retval = __sgetc(stdin);
55 FUNLOCKFILE(stdin);
56 return (retval);
57 }
58
59 int
getchar_unlocked(void)60 getchar_unlocked(void)
61 {
62 return (__sgetc(stdin));
63 }
64