src/test/test-hostname-util.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright 2013 Thomas H.P. Andersen
   4   Copyright 2015 Zbigniew Jędrzejewski-Szmek
   5 ***/
   6
   7 #include "alloc-util.h"
   8 #include "fileio.h"
   9 #include "hostname-util.h"
  10 #include "string-util.h"
  11 #include "util.h"
  12
  13 static void test_hostname_is_valid(void) {
  14         assert_se(hostname_is_valid("foobar", false));
  15         assert_se(hostname_is_valid("foobar.com", false));
  16         assert_se(!hostname_is_valid("foobar.com.", false));
  17         assert_se(hostname_is_valid("fooBAR", false));
  18         assert_se(hostname_is_valid("fooBAR.com", false));
  19         assert_se(!hostname_is_valid("fooBAR.", false));
  20         assert_se(!hostname_is_valid("fooBAR.com.", false));
  21         assert_se(!hostname_is_valid("fööbar", false));
  22         assert_se(!hostname_is_valid("", false));
  23         assert_se(!hostname_is_valid(".", false));
  24         assert_se(!hostname_is_valid("..", false));
  25         assert_se(!hostname_is_valid("foobar.", false));
  26         assert_se(!hostname_is_valid(".foobar", false));
  27         assert_se(!hostname_is_valid("foo..bar", false));
  28         assert_se(!hostname_is_valid("foo.bar..", false));
  29         assert_se(!hostname_is_valid("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", false));
  30         assert_se(!hostname_is_valid("au-xph5-rvgrdsb5hcxc-47et3a5vvkrc-server-wyoz4elpdpe3.openstack.local", false));
  31
  32         assert_se(hostname_is_valid("foobar", true));
  33         assert_se(hostname_is_valid("foobar.com", true));
  34         assert_se(hostname_is_valid("foobar.com.", true));
  35         assert_se(hostname_is_valid("fooBAR", true));
  36         assert_se(hostname_is_valid("fooBAR.com", true));
  37         assert_se(!hostname_is_valid("fooBAR.", true));
  38         assert_se(hostname_is_valid("fooBAR.com.", true));
  39         assert_se(!hostname_is_valid("fööbar", true));
  40         assert_se(!hostname_is_valid("", true));
  41         assert_se(!hostname_is_valid(".", true));
  42         assert_se(!hostname_is_valid("..", true));
  43         assert_se(!hostname_is_valid("foobar.", true));
  44         assert_se(!hostname_is_valid(".foobar", true));
  45         assert_se(!hostname_is_valid("foo..bar", true));
  46         assert_se(!hostname_is_valid("foo.bar..", true));
  47         assert_se(!hostname_is_valid("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", true));
  48 }
  49
  50 static void test_hostname_cleanup(void) {
  51         char *s;
  52
  53         s = strdupa("foobar");
  54         assert_se(streq(hostname_cleanup(s), "foobar"));
  55         s = strdupa("foobar.com");
  56         assert_se(streq(hostname_cleanup(s), "foobar.com"));
  57         s = strdupa("foobar.com.");
  58         assert_se(streq(hostname_cleanup(s), "foobar.com"));
  59         s = strdupa("fooBAR");
  60         assert_se(streq(hostname_cleanup(s), "fooBAR"));
  61         s = strdupa("fooBAR.com");
  62         assert_se(streq(hostname_cleanup(s), "fooBAR.com"));
  63         s = strdupa("fooBAR.");
  64         assert_se(streq(hostname_cleanup(s), "fooBAR"));
  65         s = strdupa("fooBAR.com.");
  66         assert_se(streq(hostname_cleanup(s), "fooBAR.com"));
  67         s = strdupa("fööbar");
  68         assert_se(streq(hostname_cleanup(s), "fbar"));
  69         s = strdupa("");
  70         assert_se(isempty(hostname_cleanup(s)));
  71         s = strdupa(".");
  72         assert_se(isempty(hostname_cleanup(s)));
  73         s = strdupa("..");
  74         assert_se(isempty(hostname_cleanup(s)));
  75         s = strdupa("foobar.");
  76         assert_se(streq(hostname_cleanup(s), "foobar"));
  77         s = strdupa(".foobar");
  78         assert_se(streq(hostname_cleanup(s), "foobar"));
  79         s = strdupa("foo..bar");
  80         assert_se(streq(hostname_cleanup(s), "foo.bar"));
  81         s = strdupa("foo.bar..");
  82         assert_se(streq(hostname_cleanup(s), "foo.bar"));
  83         s = strdupa("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
  84         assert_se(streq(hostname_cleanup(s), "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"));
  85 }
  86
  87 static void test_read_etc_hostname(void) {
  88         char path[] = "/tmp/hostname.XXXXXX";
  89         char *hostname;
  90         int fd;
  91
  92         fd = mkostemp_safe(path);
  93         assert(fd > 0);
  94         close(fd);
  95
  96         /* simple hostname */
  97         assert_se(write_string_file(path, "foo", WRITE_STRING_FILE_CREATE) == 0);
  98         assert_se(read_etc_hostname(path, &hostname) == 0);
  99         assert_se(streq(hostname, "foo"));
 100         hostname = mfree(hostname);
 101
 102         /* with comment */
 103         assert_se(write_string_file(path, "# comment\nfoo", WRITE_STRING_FILE_CREATE) == 0);
 104         assert_se(read_etc_hostname(path, &hostname) == 0);
 105         assert_se(hostname);
 106         assert_se(streq(hostname, "foo"));
 107         hostname = mfree(hostname);
 108
 109         /* with comment and extra whitespace */
 110         assert_se(write_string_file(path, "# comment\n\n foo ", WRITE_STRING_FILE_CREATE) == 0);
 111         assert_se(read_etc_hostname(path, &hostname) == 0);
 112         assert_se(hostname);
 113         assert_se(streq(hostname, "foo"));
 114         hostname = mfree(hostname);
 115
 116         /* cleans up name */
 117         assert_se(write_string_file(path, "!foo/bar.com", WRITE_STRING_FILE_CREATE) == 0);
 118         assert_se(read_etc_hostname(path, &hostname) == 0);
 119         assert_se(hostname);
 120         assert_se(streq(hostname, "foobar.com"));
 121         hostname = mfree(hostname);
 122
 123         /* no value set */
 124         hostname = (char*) 0x1234;
 125         assert_se(write_string_file(path, "# nothing here\n", WRITE_STRING_FILE_CREATE) == 0);
 126         assert_se(read_etc_hostname(path, &hostname) == -ENOENT);
 127         assert_se(hostname == (char*) 0x1234);  /* does not touch argument on error */
 128
 129         /* nonexisting file */
 130         assert_se(read_etc_hostname("/non/existing", &hostname) == -ENOENT);
 131         assert_se(hostname == (char*) 0x1234);  /* does not touch argument on error */
 132
 133         unlink(path);
 134 }
 135
 136 int main(int argc, char *argv[]) {
 137         log_parse_environment();
 138         log_open();
 139
 140         test_hostname_is_valid();
 141         test_hostname_cleanup();
 142         test_read_etc_hostname();
 143
 144         return 0;
 145 }