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

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