1/*-
2 * Copyright (c) 2002 Tim J. Robbins
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
27/*
28 * Test program for perror() as specified by IEEE Std. 1003.1-2001 and
29 * ISO/IEC 9899:1999.
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD$");
34
35#include <err.h>
36#include <errno.h>
37#include <limits.h>
38#include <paths.h>
39#include <stdio.h>
40#include <stdlib.h>
41#include <string.h>
42#include <unistd.h>
43
44#include <atf-c.h>
45
46static char tmpfil[PATH_MAX];
47
48ATF_TC_WITHOUT_HEAD(perror_test);
49ATF_TC_BODY(perror_test, tc)
50{
51	char lbuf[512];
52	int i;
53	char *s;
54
55	strcpy(tmpfil, "perror.XXXXXXXX");
56	ATF_REQUIRE(mkstemp(tmpfil) >= 0);
57	/* Reopen stderr on a file descriptor other than 2. */
58	fclose(stderr);
59	for (i = 0; i < 3; i++)
60		dup(0);
61	ATF_REQUIRE(freopen(tmpfil, "r+", stderr) != NULL);
62
63	/*
64	 * Test that perror() doesn't call strerror() (4.4BSD bug),
65	 * the two ways of omitting a program name, and the formatting when
66	 * a program name is specified.
67	 */
68	s = strerror(ENOENT);
69	ATF_REQUIRE_MSG(strcmp(s, "No such file or directory") == 0,
70	    "message obtained was: %s", s);
71	errno = EPERM;
72	perror(NULL);
73	perror("");
74	perror("perror_test");
75	ATF_REQUIRE_MSG(strcmp(s, "No such file or directory") == 0,
76	    "message obtained was: %s", s);
77
78	/*
79	 * Read it back to check...
80	 */
81	rewind(stderr);
82	s = fgets(lbuf, sizeof(lbuf), stderr);
83	ATF_REQUIRE(s != NULL);
84	ATF_REQUIRE_MSG(strcmp(s, "Operation not permitted\n") == 0,
85	    "message obtained was: %s", s);
86	s = fgets(lbuf, sizeof(lbuf), stderr);
87	ATF_REQUIRE(s != NULL);
88	ATF_REQUIRE_MSG(strcmp(s, "Operation not permitted\n") == 0,
89	    "message obtained was: %s", s);
90	s = fgets(lbuf, sizeof(lbuf), stderr);
91	ATF_REQUIRE(s != NULL);
92	ATF_REQUIRE_MSG(
93	    strcmp(s, "perror_test: Operation not permitted\n") == 0,
94	    "message obtained was: %s", s);
95	s = fgets(lbuf, sizeof(lbuf), stderr);
96	ATF_REQUIRE(s == NULL);
97	fclose(stderr);
98
99}
100
101ATF_TP_ADD_TCS(tp)
102{
103
104	ATF_TP_ADD_TC(tp, perror_test);
105
106	return (atf_no_error());
107}
108