xref: /freebsd/contrib/netbsd-tests/lib/libc/stdio/t_scanf.c (revision 02e9120893770924227138ba49df1edb3896112a)
1 /* $NetBSD: t_scanf.c,v 1.3 2012/03/18 07:00:51 jruoho Exp $ */
2 
3 /*-
4  * Copyright (c) 2010 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 <atf-c.h>
30 #include <math.h>
31 #include <stdio.h>
32 #include <string.h>
33 
34 #define NUM     -0x1234
35 #define STRNUM  ___STRING(NUM)
36 
37 ATF_TC(sscanf_neghex);
38 ATF_TC_HEAD(sscanf_neghex, tc)
39 {
40 	atf_tc_set_md_var(tc, "descr",
41 	    "PR lib/21691: %%i and %%x fail with negative hex numbers");
42 }
43 
44 ATF_TC_BODY(sscanf_neghex, tc)
45 {
46         int i;
47 
48         sscanf(STRNUM, "%i", &i);
49 	ATF_REQUIRE(i == NUM);
50 
51         sscanf(STRNUM, "%x", &i);
52 	ATF_REQUIRE(i == NUM);
53 }
54 
55 ATF_TC(sscanf_whitespace);
56 ATF_TC_HEAD(sscanf_whitespace, tc)
57 {
58 
59 	atf_tc_set_md_var(tc, "descr", "verify sscanf skips all whitespace");
60 }
61 
62 ATF_TC_BODY(sscanf_whitespace, tc)
63 {
64 	const char str[] = "\f\n\r\t\v%z";
65 	char c;
66 
67 #ifndef __NetBSD__
68 	atf_tc_expect_fail("fails on FreeBSD and some variants of Linux");
69 #endif
70 
71         /* set of "white space" symbols from isspace(3) */
72         c = 0;
73         (void)sscanf(str, "%%%c", &c);
74 	ATF_REQUIRE(c == 'z');
75 }
76 
77 
78 ATF_TP_ADD_TCS(tp)
79 {
80 
81 	ATF_TP_ADD_TC(tp, sscanf_neghex);
82 	ATF_TP_ADD_TC(tp, sscanf_whitespace);
83 
84 	return atf_no_error();
85 }
86