src/test/test-hostname-util.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   This file is part of systemd.
   4
   5   Copyright 2010 Lennart Poettering
   6   Copyright 2013 Thomas H.P. Andersen
   7   Copyright 2015 Zbigniew Jędrzejewski-Szmek
   8
   9   systemd is free software; you can redistribute it and/or modify it
  10   under the terms of the GNU Lesser General Public License as published by
  11   the Free Software Foundation; either version 2.1 of the License, or
  12   (at your option) any later version.
  13
  14   systemd is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   Lesser General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21 ***/
  22
  23 #include "alloc-util.h"
  24 #include "fileio.h"
  25 #include "hostname-util.h"
  26 #include "string-util.h"
  27 #include "util.h"
  28
  29 static void test_hostname_is_valid(void) {
  30         assert_se(hostname_is_valid("foobar", false));
  31         assert_se(hostname_is_valid("foobar.com", false));
  32         assert_se(!hostname_is_valid("foobar.com.", false));
  33         assert_se(hostname_is_valid("fooBAR", false));
  34         assert_se(hostname_is_valid("fooBAR.com", false));
  35         assert_se(!hostname_is_valid("fooBAR.", false));
  36         assert_se(!hostname_is_valid("fooBAR.com.", false));
  37         assert_se(!hostname_is_valid("fööbar", false));
  38         assert_se(!hostname_is_valid("", false));
  39         assert_se(!hostname_is_valid(".", false));
  40         assert_se(!hostname_is_valid("..", false));
  41         assert_se(!hostname_is_valid("foobar.", false));
  42         assert_se(!hostname_is_valid(".foobar", false));
  43         assert_se(!hostname_is_valid("foo..bar", false));
  44         assert_se(!hostname_is_valid("foo.bar..", false));
  45         assert_se(!hostname_is_valid("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", false));
  46         assert_se(!hostname_is_valid("au-xph5-rvgrdsb5hcxc-47et3a5vvkrc-server-wyoz4elpdpe3.openstack.local", false));
  47
  48         assert_se(hostname_is_valid("foobar", true));
  49         assert_se(hostname_is_valid("foobar.com", true));
  50         assert_se(hostname_is_valid("foobar.com.", true));
  51         assert_se(hostname_is_valid("fooBAR", true));
  52         assert_se(hostname_is_valid("fooBAR.com", true));
  53         assert_se(!hostname_is_valid("fooBAR.", true));
  54         assert_se(hostname_is_valid("fooBAR.com.", true));
  55         assert_se(!hostname_is_valid("fööbar", true));
  56         assert_se(!hostname_is_valid("", true));
  57         assert_se(!hostname_is_valid(".", true));
  58         assert_se(!hostname_is_valid("..", true));
  59         assert_se(!hostname_is_valid("foobar.", true));
  60         assert_se(!hostname_is_valid(".foobar", true));
  61         assert_se(!hostname_is_valid("foo..bar", true));
  62         assert_se(!hostname_is_valid("foo.bar..", true));
  63         assert_se(!hostname_is_valid("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", true));
  64 }
  65
  66 static void test_hostname_cleanup(void) {
  67         char *s;
  68
  69         s = strdupa("foobar");
  70         assert_se(streq(hostname_cleanup(s), "foobar"));
  71         s = strdupa("foobar.com");
  72         assert_se(streq(hostname_cleanup(s), "foobar.com"));
  73         s = strdupa("foobar.com.");
  74         assert_se(streq(hostname_cleanup(s), "foobar.com"));
  75         s = strdupa("fooBAR");
  76         assert_se(streq(hostname_cleanup(s), "fooBAR"));
  77         s = strdupa("fooBAR.com");
  78         assert_se(streq(hostname_cleanup(s), "fooBAR.com"));
  79         s = strdupa("fooBAR.");
  80         assert_se(streq(hostname_cleanup(s), "fooBAR"));
  81         s = strdupa("fooBAR.com.");
  82         assert_se(streq(hostname_cleanup(s), "fooBAR.com"));
  83         s = strdupa("fööbar");
  84         assert_se(streq(hostname_cleanup(s), "fbar"));
  85         s = strdupa("");
  86         assert_se(isempty(hostname_cleanup(s)));
  87         s = strdupa(".");
  88         assert_se(isempty(hostname_cleanup(s)));
  89         s = strdupa("..");
  90         assert_se(isempty(hostname_cleanup(s)));
  91         s = strdupa("foobar.");
  92         assert_se(streq(hostname_cleanup(s), "foobar"));
  93         s = strdupa(".foobar");
  94         assert_se(streq(hostname_cleanup(s), "foobar"));
  95         s = strdupa("foo..bar");
  96         assert_se(streq(hostname_cleanup(s), "foo.bar"));
  97         s = strdupa("foo.bar..");
  98         assert_se(streq(hostname_cleanup(s), "foo.bar"));
  99         s = strdupa("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
 100         assert_se(streq(hostname_cleanup(s), "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"));
 101 }
 102
 103 static void test_read_hostname_config(void) {
 104         char path[] = "/tmp/hostname.XXXXXX";
 105         char *hostname;
 106         int fd;
 107
 108         fd = mkostemp_safe(path);
 109         assert(fd > 0);
 110         close(fd);
 111
 112         /* simple hostname */
 113         write_string_file(path, "foo", WRITE_STRING_FILE_CREATE);
 114         assert_se(read_hostname_config(path, &hostname) == 0);
 115         assert_se(streq(hostname, "foo"));
 116         hostname = mfree(hostname);
 117
 118         /* with comment */
 119         write_string_file(path, "# comment\nfoo", WRITE_STRING_FILE_CREATE);
 120         assert_se(read_hostname_config(path, &hostname) == 0);
 121         assert_se(hostname);
 122         assert_se(streq(hostname, "foo"));
 123         hostname = mfree(hostname);
 124
 125         /* with comment and extra whitespace */
 126         write_string_file(path, "# comment\n\n foo ", WRITE_STRING_FILE_CREATE);
 127         assert_se(read_hostname_config(path, &hostname) == 0);
 128         assert_se(hostname);
 129         assert_se(streq(hostname, "foo"));
 130         hostname = mfree(hostname);
 131
 132         /* cleans up name */
 133         write_string_file(path, "!foo/bar.com", WRITE_STRING_FILE_CREATE);
 134         assert_se(read_hostname_config(path, &hostname) == 0);
 135         assert_se(hostname);
 136         assert_se(streq(hostname, "foobar.com"));
 137         hostname = mfree(hostname);
 138
 139         /* no value set */
 140         hostname = (char*) 0x1234;
 141         write_string_file(path, "# nothing here\n", WRITE_STRING_FILE_CREATE);
 142         assert_se(read_hostname_config(path, &hostname) == -ENOENT);
 143         assert_se(hostname == (char*) 0x1234);  /* does not touch argument on error */
 144
 145         /* nonexisting file */
 146         assert_se(read_hostname_config("/non/existing", &hostname) == -ENOENT);
 147         assert_se(hostname == (char*) 0x1234);  /* does not touch argument on error */
 148
 149         unlink(path);
 150 }
 151
 152 int main(int argc, char *argv[]) {
 153         log_parse_environment();
 154         log_open();
 155
 156         test_hostname_is_valid();
 157         test_hostname_cleanup();
 158         test_read_hostname_config();
 159
 160         return 0;
 161 }