strerror_test.c revision 141092 
1/*-
2 * Copyright (c) 2001 Wes Peters <wes@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/tools/regression/lib/libc/string/test-strerror.c 141092 2005-02-01 01:53:35Z nik $
27 */
28
29#include <assert.h>
30#include <errno.h>
31#include <limits.h>
32#include <stdio.h>
33#include <stdlib.h>
34#include <string.h>
35
36#include <tap.h>
37
38int
39main(void)
40{
41	char buf[64];
42	char *sret;
43	int iret;
44
45	plan_tests(25);
46
47	/*
48	 * strerror() failure tests.
49	 */
50	errno = 0;
51	sret = strerror(0);
52	ok1(strcmp(sret, "Unknown error: 0") == 0);
53	ok1(errno == EINVAL);
54
55	errno = 0;
56	sret = strerror(INT_MAX);
57	snprintf(buf, sizeof(buf), "Unknown error: %d", INT_MAX);
58	ok1(strcmp(sret, buf) == 0);
59	ok1(errno == EINVAL);
60
61	/*
62	 * strerror() success tests.
63	 */
64	errno = 0;
65	sret = strerror(EPERM);
66	ok1(strcmp(sret, "Operation not permitted") == 0);
67	ok1(errno == 0);
68
69	errno = 0;
70	sret = strerror(EPFNOSUPPORT);
71	ok1(strcmp(sret, "Protocol family not supported") == 0);
72	ok1(errno == 0);
73
74	errno = 0;
75	sret = strerror(ELAST);
76	ok1(errno == 0);
77
78	/*
79	 * strerror_r() failure tests.
80	 */
81	memset(buf, '*', sizeof(buf));
82	iret = strerror_r(0, buf, sizeof(buf));
83	ok1(strcmp(buf, "Unknown error: 0") == 0);
84	ok1(iret == EINVAL);
85
86	memset(buf, '*', sizeof(buf));
87	/* One byte too short. */
88	iret = strerror_r(EPERM, buf, strlen("Operation not permitted"));
89	ok1(strcmp(buf, "Operation not permitte") == 0);
90	ok1(iret == ERANGE);
91
92	memset(buf, '*', sizeof(buf));
93	/* One byte too short. */
94	iret = strerror_r(-1, buf, strlen("Unknown error: -1"));
95	ok1(strcmp(buf, "Unknown error: -") == 0);
96	ok1(iret == EINVAL);
97
98	memset(buf, '*', sizeof(buf));
99	/* Two bytes too short. */
100	iret = strerror_r(-2, buf, strlen("Unknown error: -2") - 1);
101	ok1(strcmp(buf, "Unknown error: ") == 0);
102	ok1(iret == EINVAL);
103
104	memset(buf, '*', sizeof(buf));
105	/* Three bytes too short. */
106	iret = strerror_r(-2, buf, strlen("Unknown error: -2") - 2);
107	ok1(strcmp(buf, "Unknown error:") == 0);
108	ok1(iret == EINVAL);
109
110	memset(buf, '*', sizeof(buf));
111	/* One byte too short. */
112	iret = strerror_r(12345, buf, strlen("Unknown error: 12345"));
113	ok1(strcmp(buf, "Unknown error: 1234") == 0);
114	ok1(iret == EINVAL);
115
116	/*
117	 * strerror_r() success tests.
118	 */
119	memset(buf, '*', sizeof(buf));
120	iret = strerror_r(EDEADLK, buf, sizeof(buf));
121	ok1(strcmp(buf, "Resource deadlock avoided") == 0);
122	ok1(iret == 0);
123
124	memset(buf, '*', sizeof(buf));
125	iret = strerror_r(EPROCLIM, buf, sizeof(buf));
126	ok1(strcmp(buf, "Too many processes") == 0);
127	ok1(iret == 0);
128
129	return exit_status();
130}
131