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 #include <sys/types.h>
28 #include <sys/param.h>
29 #include <errno.h>
30 #include <libutil.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34 #include <unistd.h>
35
36 #define TESTDOMAIN ""
37 #define TESTHOST "testhost"
38 #define TESTFQDN "testhost" TESTDOMAIN
39
40 int failures = 0;
41 int tests = 0;
42
43 /*
44 * Evily override gethostname(3) so trimdomain always gets the same result.
45 * This makes the tests much easier to write and less likely to fail on
46 * oddly configured systems.
47 */
48 int
gethostname(char * name,size_t namelen)49 gethostname(char *name, size_t namelen)
50 {
51 if (strlcpy(name, TESTFQDN, namelen) > namelen) {
52 errno = ENAMETOOLONG;
53 return (-1);
54 }
55 return (0);
56 }
57
58 void
testit(const char * input,int hostsize,const char * output,const char * test)59 testit(const char *input, int hostsize, const char *output, const char *test)
60 {
61 char *testhost;
62 const char *expected = (output == NULL) ? input : output;
63
64 testhost = strdup(input);
65 trimdomain(testhost, hostsize < 0 ? (int)strlen(testhost) : hostsize);
66 tests++;
67 if (strcmp(testhost, expected) != 0) {
68 printf("not ok %d - %s\n", tests, test);
69 printf("# %s -> %s (expected %s)\n", input, testhost, expected);
70 } else
71 printf("ok %d - %s\n", tests, test);
72 free(testhost);
73 return;
74 }
75
76 int
main(void)77 main(void)
78 {
79
80 printf("1..5\n");
81
82 testit(TESTFQDN, -1, TESTHOST, "self");
83 testit("XXX" TESTDOMAIN, -1, "XXX", "different host, same domain");
84 testit("XXX" TESTDOMAIN, 1, NULL, "short hostsize");
85 testit("bogus.example.net", -1, NULL, "arbitrary host");
86 testit("XXX." TESTFQDN, -1, NULL, "domain is local hostname");
87
88 return (0);
89 }
90