1 /* $NetBSD: h_stpncpy.c,v 1.2 2014/04/07 15:09:20 christos Exp $ */
2
3 /*
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __COPYRIGHT("@(#) Copyright (c) 2008\
31 The NetBSD Foundation, inc. All rights reserved.");
32 __RCSID("$NetBSD: h_stpncpy.c,v 1.2 2014/04/07 15:09:20 christos Exp $");
33
34 #include <stdio.h>
35 #include <string.h>
36 #include <unistd.h>
37 #include <stdlib.h>
38
39 int
main(int argc,char * argv[])40 main(int argc, char *argv[])
41 {
42 char b[10];
43 int len = atoi(argv[1]);
44 #if __GNUC_PREREQ__(4, 8)
45 char *q = stpncpy(b, "1020202020202", len);
46
47 if (q - b != len)
48 abort();
49 #else
50 // gcc-4.5 lacks __builtin___stpncpy_chk, lose.
51 (void)strncpy(b, "1020202020202", len);
52 #endif
53
54 (void)printf("%*.*s\n", len, len, b);
55 return 0;
56 }
57