xref: /freebsd/contrib/netbsd-tests/lib/libc/string/t_memmem.c (revision ff0ba87247820afbdfdc1b307c803f7923d0e4d3)
1 /*	$NetBSD: t_memmem.c,v 1.2 2011/07/07 08:27:36 jruoho Exp $ */
2 
3 /*-
4  * Copyright (c) 2005 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Perry E. Metzger of Metzger, Dowdeswell & Co. LLC.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #include <atf-c.h>
33 
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37 
38 char p0[] = "";
39 int lp0 = 0;
40 char p1[] = "0123";
41 int lp1 = 4;
42 char p2[] = "456";
43 int lp2 = 3;
44 char p3[] = "789";
45 int lp3 = 3;
46 char p4[] = "abc";
47 int lp4 = 3;
48 char p5[] = "0";
49 int lp5 = 1;
50 char p6[] = "9";
51 int lp6 = 1;
52 char p7[] = "654";
53 int lp7 = 3;
54 
55 char b0[] = "";
56 int lb0 = 0;
57 char b1[] = "0";
58 int lb1 = 1;
59 char b2[] = "0123456789";
60 int lb2 = 10;
61 
62 #define expect(b)							\
63 	if (!(b)) {							\
64 		fprintf(stderr, "failed on line %d\n", __LINE__);	\
65 		atf_tc_fail("Check stderr for test id/line");		\
66 	}
67 
68 ATF_TC(memmem_basic);
69 ATF_TC_HEAD(memmem_basic, tc)
70 {
71 
72 	atf_tc_set_md_var(tc, "descr", "Test memmem results");
73 }
74 
75 ATF_TC_BODY(memmem_basic, tc)
76 {
77 
78 #if defined(__darwin__) || defined(__FreeBSD__)
79 	expect(memmem(b2, lb2, p0, lp0) == NULL);
80 	expect(memmem(b0, lb0, p0, lp0) == NULL);
81 #else
82 	expect(memmem(b2, lb2, p0, lp0) == b2);
83 	expect(memmem(b0, lb0, p0, lp0) == b0);
84 #endif
85 	expect(memmem(b0, lb0, p1, lp1) == NULL);
86 	expect(memmem(b1, lb1, p1, lp1) == NULL);
87 
88 	expect(memmem(b2, lb2, p1, lp1) == b2);
89 	expect(memmem(b2, lb2, p2, lp2) == (b2 + 4));
90 	expect(memmem(b2, lb2, p3, lp3) == (b2 + 7));
91 
92 	expect(memmem(b2, lb2, p5, lp5) == b2);
93 	expect(memmem(b2, lb2, p6, lp6) == (b2 + 9));
94 
95 	expect(memmem(b2, lb2, p4, lp4) == NULL);
96 	expect(memmem(b2, lb2, p7, lp7) == NULL);
97 }
98 
99 ATF_TP_ADD_TCS(tp)
100 {
101 
102 	ATF_TP_ADD_TC(tp, memmem_basic);
103 
104 	return atf_no_error();
105 }
106