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

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include "sd-bus.h"
   4
   5 #include "bus-common-errors.h"
   6 #include "bus-error.h"
   7 #include "bus-util.h"
   8 #include "errno-list.h"
   9
  10 static void test_error(void) {
  11         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL, second = SD_BUS_ERROR_NULL;
  12         const sd_bus_error const_error = SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FILE_EXISTS, "const error");
  13         const sd_bus_error temporarily_const_error = {
  14                 .name = SD_BUS_ERROR_ACCESS_DENIED,
  15                 .message = "oh! no",
  16                 ._need_free = -1
  17         };
  18
  19         assert_se(!sd_bus_error_is_set(&error));
  20         assert_se(sd_bus_error_set(&error, SD_BUS_ERROR_NOT_SUPPORTED, "xxx") == -EOPNOTSUPP);
  21         assert_se(streq(error.name, SD_BUS_ERROR_NOT_SUPPORTED));
  22         assert_se(streq(error.message, "xxx"));
  23         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_NOT_SUPPORTED));
  24         assert_se(sd_bus_error_get_errno(&error) == EOPNOTSUPP);
  25         assert_se(sd_bus_error_is_set(&error));
  26         sd_bus_error_free(&error);
  27
  28         /* Check with no error */
  29         assert_se(!sd_bus_error_is_set(&error));
  30         assert_se(sd_bus_error_setf(&error, NULL, "yyy %i", -1) == 0);
  31         assert_se(error.name == NULL);
  32         assert_se(error.message == NULL);
  33         assert_se(!sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND));
  34         assert_se(sd_bus_error_get_errno(&error) == 0);
  35         assert_se(!sd_bus_error_is_set(&error));
  36
  37         assert_se(sd_bus_error_setf(&error, SD_BUS_ERROR_FILE_NOT_FOUND, "yyy %i", -1) == -ENOENT);
  38         assert_se(streq(error.name, SD_BUS_ERROR_FILE_NOT_FOUND));
  39         assert_se(streq(error.message, "yyy -1"));
  40         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND));
  41         assert_se(sd_bus_error_get_errno(&error) == ENOENT);
  42         assert_se(sd_bus_error_is_set(&error));
  43
  44         assert_se(!sd_bus_error_is_set(&second));
  45         assert_se(second._need_free == 0);
  46         assert_se(error._need_free > 0);
  47         assert_se(sd_bus_error_copy(&second, &error) == -ENOENT);
  48         assert_se(second._need_free > 0);
  49         assert_se(streq(error.name, second.name));
  50         assert_se(streq(error.message, second.message));
  51         assert_se(sd_bus_error_get_errno(&second) == ENOENT);
  52         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_NOT_FOUND));
  53         assert_se(sd_bus_error_is_set(&second));
  54
  55         sd_bus_error_free(&error);
  56         sd_bus_error_free(&second);
  57
  58         assert_se(!sd_bus_error_is_set(&second));
  59         assert_se(const_error._need_free == 0);
  60         assert_se(sd_bus_error_copy(&second, &const_error) == -EEXIST);
  61         assert_se(second._need_free == 0);
  62         assert_se(streq(const_error.name, second.name));
  63         assert_se(streq(const_error.message, second.message));
  64         assert_se(sd_bus_error_get_errno(&second) == EEXIST);
  65         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_EXISTS));
  66         assert_se(sd_bus_error_is_set(&second));
  67         sd_bus_error_free(&second);
  68
  69         assert_se(!sd_bus_error_is_set(&second));
  70         assert_se(temporarily_const_error._need_free < 0);
  71         assert_se(sd_bus_error_copy(&second, &temporarily_const_error) == -EACCES);
  72         assert_se(second._need_free > 0);
  73         assert_se(streq(temporarily_const_error.name, second.name));
  74         assert_se(streq(temporarily_const_error.message, second.message));
  75         assert_se(sd_bus_error_get_errno(&second) == EACCES);
  76         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_ACCESS_DENIED));
  77         assert_se(sd_bus_error_is_set(&second));
  78
  79         assert_se(!sd_bus_error_is_set(&error));
  80         assert_se(sd_bus_error_set_const(&error, "System.Error.EUCLEAN", "Hallo") == -EUCLEAN);
  81         assert_se(streq(error.name, "System.Error.EUCLEAN"));
  82         assert_se(streq(error.message, "Hallo"));
  83         assert_se(sd_bus_error_has_name(&error, "System.Error.EUCLEAN"));
  84         assert_se(sd_bus_error_get_errno(&error) == EUCLEAN);
  85         assert_se(sd_bus_error_is_set(&error));
  86         sd_bus_error_free(&error);
  87
  88         assert_se(!sd_bus_error_is_set(&error));
  89         assert_se(sd_bus_error_set_errno(&error, EBUSY) == -EBUSY);
  90         assert_se(streq(error.name, "System.Error.EBUSY"));
  91         assert_se(streq(error.message, strerror(EBUSY)));
  92         assert_se(sd_bus_error_has_name(&error, "System.Error.EBUSY"));
  93         assert_se(sd_bus_error_get_errno(&error) == EBUSY);
  94         assert_se(sd_bus_error_is_set(&error));
  95         sd_bus_error_free(&error);
  96
  97         assert_se(!sd_bus_error_is_set(&error));
  98         assert_se(sd_bus_error_set_errnof(&error, EIO, "Waldi %c", 'X') == -EIO);
  99         assert_se(streq(error.name, SD_BUS_ERROR_IO_ERROR));
 100         assert_se(streq(error.message, "Waldi X"));
 101         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
 102         assert_se(sd_bus_error_get_errno(&error) == EIO);
 103         assert_se(sd_bus_error_is_set(&error));
 104         sd_bus_error_free(&error);
 105
 106         /* Check with no error */
 107         assert_se(!sd_bus_error_is_set(&error));
 108         assert_se(sd_bus_error_set_errnof(&error, 0, "Waldi %c", 'X') == 0);
 109         assert_se(error.name == NULL);
 110         assert_se(error.message == NULL);
 111         assert_se(!sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
 112         assert_se(sd_bus_error_get_errno(&error) == 0);
 113         assert_se(!sd_bus_error_is_set(&error));
 114 }
 115
 116 extern const sd_bus_error_map __start_SYSTEMD_BUS_ERROR_MAP[];
 117 extern const sd_bus_error_map __stop_SYSTEMD_BUS_ERROR_MAP[];
 118
 119 static void dump_mapping_table(void) {
 120         const sd_bus_error_map *m;
 121
 122         printf("----- errno mappings ------\n");
 123         m = ALIGN_TO_PTR(__start_SYSTEMD_BUS_ERROR_MAP, sizeof(void*));
 124         while (m < __stop_SYSTEMD_BUS_ERROR_MAP) {
 125
 126                 if (m->code == BUS_ERROR_MAP_END_MARKER) {
 127                         m = ALIGN_TO_PTR(m + 1, sizeof(void*));
 128                         continue;
 129                 }
 130
 131                 printf("%s -> %i/%s\n", strna(m->name), m->code, strna(errno_to_name(m->code)));
 132                 m++;
 133         }
 134         printf("---------------------------\n");
 135 }
 136
 137 static void test_errno_mapping_standard(void) {
 138         assert_se(sd_bus_error_set(NULL, "System.Error.EUCLEAN", NULL) == -EUCLEAN);
 139         assert_se(sd_bus_error_set(NULL, "System.Error.EBUSY", NULL) == -EBUSY);
 140         assert_se(sd_bus_error_set(NULL, "System.Error.EINVAL", NULL) == -EINVAL);
 141         assert_se(sd_bus_error_set(NULL, "System.Error.WHATSIT", NULL) == -EIO);
 142 }
 143
 144 BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map test_errors[] = {
 145         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error", 5),
 146         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-2", 52),
 147         SD_BUS_ERROR_MAP_END
 148 };
 149
 150 BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map test_errors2[] = {
 151         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-3", 33),
 152         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-4", 44),
 153         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-33", 333),
 154         SD_BUS_ERROR_MAP_END
 155 };
 156
 157 static const sd_bus_error_map test_errors3[] = {
 158         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-88", 888),
 159         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-99", 999),
 160         SD_BUS_ERROR_MAP_END
 161 };
 162
 163 static const sd_bus_error_map test_errors4[] = {
 164         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-77", 777),
 165         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-78", 778),
 166         SD_BUS_ERROR_MAP_END
 167 };
 168
 169 static const sd_bus_error_map test_errors_bad1[] = {
 170         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-1", 0),
 171         SD_BUS_ERROR_MAP_END
 172 };
 173
 174 static const sd_bus_error_map test_errors_bad2[] = {
 175         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-1", -1),
 176         SD_BUS_ERROR_MAP_END
 177 };
 178
 179 static void test_errno_mapping_custom(void) {
 180         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error", NULL) == -5);
 181         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-2", NULL) == -52);
 182         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-x", NULL) == -EIO);
 183         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-33", NULL) == -333);
 184
 185         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-88", NULL) == -EIO);
 186         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-99", NULL) == -EIO);
 187         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-77", NULL) == -EIO);
 188
 189         assert_se(sd_bus_error_add_map(test_errors3) > 0);
 190         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-88", NULL) == -888);
 191         assert_se(sd_bus_error_add_map(test_errors4) > 0);
 192         assert_se(sd_bus_error_add_map(test_errors4) == 0);
 193         assert_se(sd_bus_error_add_map(test_errors3) == 0);
 194
 195         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-99", NULL) == -999);
 196         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-77", NULL) == -777);
 197         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-78", NULL) == -778);
 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-y", NULL) == -EIO);
 200
 201         assert_se(sd_bus_error_set(NULL, BUS_ERROR_NO_SUCH_UNIT, NULL) == -ENOENT);
 202
 203         assert_se(sd_bus_error_add_map(test_errors_bad1) == -EINVAL);
 204         assert_se(sd_bus_error_add_map(test_errors_bad2) == -EINVAL);
 205 }
 206
 207 int main(int argc, char *argv[]) {
 208         dump_mapping_table();
 209
 210         test_error();
 211         test_errno_mapping_standard();
 212         test_errno_mapping_custom();
 213
 214         return 0;
 215 }