xref: /freebsd/lib/libutil/tests/trimdomain_test.c (revision bdd1243df58e60e85101c09001d9812a789b6bc4)
1 /*
2  * Copyright (C) 2005 Brooks Davis. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  */
25 
26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
28 
29 #include <sys/types.h>
30 #include <sys/param.h>
31 #include <errno.h>
32 #include <libutil.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36 #include <unistd.h>
37 
38 #define TESTDOMAIN ".domain.example.com"
39 #define TESTHOST "testhost"
40 #define TESTFQDN "testhost" TESTDOMAIN
41 
42 int failures = 0;
43 int tests = 0;
44 
45 /*
46  * Evily override gethostname(3) so trimdomain always gets the same result.
47  * This makes the tests much easier to write and less likely to fail on
48  * oddly configured systems.
49  */
50 int
51 gethostname(char *name, size_t namelen)
52 {
53 	if (strlcpy(name, TESTFQDN, namelen) > namelen) {
54 		errno = ENAMETOOLONG;
55 		return (-1);
56 	}
57 	return (0);
58 }
59 
60 void
61 testit(const char *input, int hostsize, const char *output, const char *test)
62 {
63 	char *testhost;
64 	const char *expected = (output == NULL) ? input : output;
65 
66 	testhost = strdup(input);
67 	trimdomain(testhost, hostsize < 0 ? (int)strlen(testhost) : hostsize);
68 	tests++;
69 	if (strcmp(testhost, expected) != 0) {
70 		printf("not ok %d - %s\n", tests, test);
71 		printf("# %s -> %s (expected %s)\n", input, testhost, expected);
72 	} else
73 		printf("ok %d - %s\n", tests, test);
74 	free(testhost);
75 	return;
76 }
77 
78 int
79 main(void)
80 {
81 
82 	printf("1..5\n");
83 
84 	testit(TESTFQDN, -1, TESTHOST, "self");
85 	testit("XXX" TESTDOMAIN, -1, "XXX", "different host, same domain");
86 	testit("XXX" TESTDOMAIN, 1, NULL, "short hostsize");
87 	testit("bogus.example.net", -1, NULL, "arbitrary host");
88 	testit("XXX." TESTFQDN, -1, NULL, "domain is local hostname");
89 
90 	return (0);
91 }
92