src/libsystemd/sd-bus/test-bus-error.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2013 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include "sd-bus.h"
  21
  22 #include "bus-common-errors.h"
  23 #include "bus-error.h"
  24 #include "bus-util.h"
  25 #include "errno-list.h"
  26
  27 static void test_error(void) {
  28         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL, second = SD_BUS_ERROR_NULL;
  29         const sd_bus_error const_error = SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FILE_EXISTS, "const error");
  30         const sd_bus_error temporarily_const_error = {
  31                 .name = SD_BUS_ERROR_ACCESS_DENIED,
  32                 .message = "oh! no",
  33                 ._need_free = -1
  34         };
  35
  36         assert_se(!sd_bus_error_is_set(&error));
  37         assert_se(sd_bus_error_set(&error, SD_BUS_ERROR_NOT_SUPPORTED, "xxx") == -EOPNOTSUPP);
  38         assert_se(streq(error.name, SD_BUS_ERROR_NOT_SUPPORTED));
  39         assert_se(streq(error.message, "xxx"));
  40         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_NOT_SUPPORTED));
  41         assert_se(sd_bus_error_get_errno(&error) == EOPNOTSUPP);
  42         assert_se(sd_bus_error_is_set(&error));
  43         sd_bus_error_free(&error);
  44
  45         /* Check with no error */
  46         assert_se(!sd_bus_error_is_set(&error));
  47         assert_se(sd_bus_error_setf(&error, NULL, "yyy %i", -1) == 0);
  48         assert_se(error.name == NULL);
  49         assert_se(error.message == NULL);
  50         assert_se(!sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND));
  51         assert_se(sd_bus_error_get_errno(&error) == 0);
  52         assert_se(!sd_bus_error_is_set(&error));
  53
  54         assert_se(sd_bus_error_setf(&error, SD_BUS_ERROR_FILE_NOT_FOUND, "yyy %i", -1) == -ENOENT);
  55         assert_se(streq(error.name, SD_BUS_ERROR_FILE_NOT_FOUND));
  56         assert_se(streq(error.message, "yyy -1"));
  57         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND));
  58         assert_se(sd_bus_error_get_errno(&error) == ENOENT);
  59         assert_se(sd_bus_error_is_set(&error));
  60
  61         assert_se(!sd_bus_error_is_set(&second));
  62         assert_se(second._need_free == 0);
  63         assert_se(error._need_free > 0);
  64         assert_se(sd_bus_error_copy(&second, &error) == -ENOENT);
  65         assert_se(second._need_free > 0);
  66         assert_se(streq(error.name, second.name));
  67         assert_se(streq(error.message, second.message));
  68         assert_se(sd_bus_error_get_errno(&second) == ENOENT);
  69         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_NOT_FOUND));
  70         assert_se(sd_bus_error_is_set(&second));
  71
  72         sd_bus_error_free(&error);
  73         sd_bus_error_free(&second);
  74
  75         assert_se(!sd_bus_error_is_set(&second));
  76         assert_se(const_error._need_free == 0);
  77         assert_se(sd_bus_error_copy(&second, &const_error) == -EEXIST);
  78         assert_se(second._need_free == 0);
  79         assert_se(streq(const_error.name, second.name));
  80         assert_se(streq(const_error.message, second.message));
  81         assert_se(sd_bus_error_get_errno(&second) == EEXIST);
  82         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_EXISTS));
  83         assert_se(sd_bus_error_is_set(&second));
  84         sd_bus_error_free(&second);
  85
  86         assert_se(!sd_bus_error_is_set(&second));
  87         assert_se(temporarily_const_error._need_free < 0);
  88         assert_se(sd_bus_error_copy(&second, &temporarily_const_error) == -EACCES);
  89         assert_se(second._need_free > 0);
  90         assert_se(streq(temporarily_const_error.name, second.name));
  91         assert_se(streq(temporarily_const_error.message, second.message));
  92         assert_se(sd_bus_error_get_errno(&second) == EACCES);
  93         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_ACCESS_DENIED));
  94         assert_se(sd_bus_error_is_set(&second));
  95
  96         assert_se(!sd_bus_error_is_set(&error));
  97         assert_se(sd_bus_error_set_const(&error, "System.Error.EUCLEAN", "Hallo") == -EUCLEAN);
  98         assert_se(streq(error.name, "System.Error.EUCLEAN"));
  99         assert_se(streq(error.message, "Hallo"));
 100         assert_se(sd_bus_error_has_name(&error, "System.Error.EUCLEAN"));
 101         assert_se(sd_bus_error_get_errno(&error) == EUCLEAN);
 102         assert_se(sd_bus_error_is_set(&error));
 103         sd_bus_error_free(&error);
 104
 105         assert_se(!sd_bus_error_is_set(&error));
 106         assert_se(sd_bus_error_set_errno(&error, EBUSY) == -EBUSY);
 107         assert_se(streq(error.name, "System.Error.EBUSY"));
 108         assert_se(streq(error.message, strerror(EBUSY)));
 109         assert_se(sd_bus_error_has_name(&error, "System.Error.EBUSY"));
 110         assert_se(sd_bus_error_get_errno(&error) == EBUSY);
 111         assert_se(sd_bus_error_is_set(&error));
 112         sd_bus_error_free(&error);
 113
 114         assert_se(!sd_bus_error_is_set(&error));
 115         assert_se(sd_bus_error_set_errnof(&error, EIO, "Waldi %c", 'X') == -EIO);
 116         assert_se(streq(error.name, SD_BUS_ERROR_IO_ERROR));
 117         assert_se(streq(error.message, "Waldi X"));
 118         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
 119         assert_se(sd_bus_error_get_errno(&error) == EIO);
 120         assert_se(sd_bus_error_is_set(&error));
 121         sd_bus_error_free(&error);
 122
 123         /* Check with no error */
 124         assert_se(!sd_bus_error_is_set(&error));
 125         assert_se(sd_bus_error_set_errnof(&error, 0, "Waldi %c", 'X') == 0);
 126         assert_se(error.name == NULL);
 127         assert_se(error.message == NULL);
 128         assert_se(!sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
 129         assert_se(sd_bus_error_get_errno(&error) == 0);
 130         assert_se(!sd_bus_error_is_set(&error));
 131 }
 132
 133 extern const sd_bus_error_map __start_BUS_ERROR_MAP[];
 134 extern const sd_bus_error_map __stop_BUS_ERROR_MAP[];
 135
 136 static void dump_mapping_table(void) {
 137         const sd_bus_error_map *m;
 138
 139         printf("----- errno mappings ------\n");
 140         m = __start_BUS_ERROR_MAP;
 141         while (m < __stop_BUS_ERROR_MAP) {
 142
 143                 if (m->code == BUS_ERROR_MAP_END_MARKER) {
 144                         m = ALIGN8_PTR(m+1);
 145                         continue;
 146                 }
 147
 148                 printf("%s -> %i/%s\n", strna(m->name), m->code, strna(errno_to_name(m->code)));
 149                 m ++;
 150         }
 151         printf("---------------------------\n");
 152 }
 153
 154 static void test_errno_mapping_standard(void) {
 155         assert_se(sd_bus_error_set(NULL, "System.Error.EUCLEAN", NULL) == -EUCLEAN);
 156         assert_se(sd_bus_error_set(NULL, "System.Error.EBUSY", NULL) == -EBUSY);
 157         assert_se(sd_bus_error_set(NULL, "System.Error.EINVAL", NULL) == -EINVAL);
 158         assert_se(sd_bus_error_set(NULL, "System.Error.WHATSIT", NULL) == -EIO);
 159 }
 160
 161 BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map test_errors[] = {
 162         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error", 5),
 163         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-2", 52),
 164         SD_BUS_ERROR_MAP_END
 165 };
 166
 167 BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map test_errors2[] = {
 168         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-3", 33),
 169         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-4", 44),
 170         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-33", 333),
 171         SD_BUS_ERROR_MAP_END
 172 };
 173
 174 static const sd_bus_error_map test_errors3[] = {
 175         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-88", 888),
 176         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-99", 999),
 177         SD_BUS_ERROR_MAP_END
 178 };
 179
 180 static const sd_bus_error_map test_errors4[] = {
 181         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-77", 777),
 182         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-78", 778),
 183         SD_BUS_ERROR_MAP_END
 184 };
 185
 186 static const sd_bus_error_map test_errors_bad1[] = {
 187         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-1", 0),
 188         SD_BUS_ERROR_MAP_END
 189 };
 190
 191 static const sd_bus_error_map test_errors_bad2[] = {
 192         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-1", -1),
 193         SD_BUS_ERROR_MAP_END
 194 };
 195
 196 static void test_errno_mapping_custom(void) {
 197         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error", NULL) == -5);
 198         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-2", NULL) == -52);
 199         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-x", NULL) == -EIO);
 200         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-33", NULL) == -333);
 201
 202         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-88", NULL) == -EIO);
 203         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-99", NULL) == -EIO);
 204         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-77", NULL) == -EIO);
 205
 206         assert_se(sd_bus_error_add_map(test_errors3) > 0);
 207         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-88", NULL) == -888);
 208         assert_se(sd_bus_error_add_map(test_errors4) > 0);
 209         assert_se(sd_bus_error_add_map(test_errors4) == 0);
 210         assert_se(sd_bus_error_add_map(test_errors3) == 0);
 211
 212         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-99", NULL) == -999);
 213         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-77", NULL) == -777);
 214         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-78", NULL) == -778);
 215         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-2", NULL) == -52);
 216         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-y", NULL) == -EIO);
 217
 218         assert_se(sd_bus_error_set(NULL, BUS_ERROR_NO_SUCH_UNIT, NULL) == -ENOENT);
 219
 220         assert_se(sd_bus_error_add_map(test_errors_bad1) == -EINVAL);
 221         assert_se(sd_bus_error_add_map(test_errors_bad2) == -EINVAL);
 222 }
 223
 224 int main(int argc, char *argv[]) {
 225         dump_mapping_table();
 226
 227         test_error();
 228         test_errno_mapping_standard();
 229         test_errno_mapping_custom();
 230
 231         return 0;
 232 }