e->need_free = false;
}
-int sd_bus_error_set(sd_bus_error *e, const char *name, const char *format, ...) {
+int sd_bus_error_set(sd_bus_error *e, const char *name, const char *message) {
+ char *n, *m = NULL;
+
+ if (!e)
+ return 0;
+
+ assert_return(!bus_error_is_dirty(e), -EINVAL);
+ assert_return(name, -EINVAL);
+
+ n = strdup(name);
+ if (!n)
+ return -ENOMEM;
+
+ if (message) {
+ m = strdup(message);
+ if (!m)
+ return -ENOMEM;
+ }
+
+ e->name = n;
+ e->message = m;
+ e->need_free = true;
+
+ return 0;
+}
+
+int bus_error_setfv(sd_bus_error *e, const char *name, const char *format, va_list ap) {
char *n, *m = NULL;
- va_list ap;
int r;
if (!e)
return 0;
- if (bus_error_is_dirty(e))
- return -EINVAL;
- if (!name)
- return -EINVAL;
+
+ assert_return(!bus_error_is_dirty(e), -EINVAL);
+ assert_return(name, -EINVAL);
n = strdup(name);
if (!n)
return -ENOMEM;
if (format) {
- va_start(ap, format);
r = vasprintf(&m, format, ap);
- va_end(ap);
-
if (r < 0) {
free(n);
return -ENOMEM;
return 0;
}
+int sd_bus_error_setf(sd_bus_error *e, const char *name, const char *format, ...) {
+
+ if (format) {
+ int r;
+ va_list ap;
+
+ va_start(ap, format);
+ r = bus_error_setfv(e, name, format, ap);
+ va_end(ap);
+
+ return r;
+ }
+
+ return sd_bus_error_set(e, name, NULL);
+}
+
int sd_bus_error_copy(sd_bus_error *dest, const sd_bus_error *e) {
+ char *x, *y = NULL;
+
if (!dest)
return 0;
- if (bus_error_is_dirty(dest))
- return -EINVAL;
if (!sd_bus_error_is_set(e))
return 0;
- if (e->need_free) {
- char *x, *y = NULL;
+ assert_return(!bus_error_is_dirty(dest), -EINVAL);
- x = strdup(e->name);
- if (!x)
- return -ENOMEM;
+ x = strdup(e->name);
+ if (!x)
+ return -ENOMEM;
- if (e->message) {
- y = strdup(e->message);
- if (!y) {
- free(x);
- return -ENOMEM;
- }
+ if (e->message) {
+ y = strdup(e->message);
+ if (!y) {
+ free(x);
+ return -ENOMEM;
}
+ }
- dest->name = x;
- dest->message = y;
- dest->need_free = true;
- } else
- *dest = *e;
-
+ dest->name = x;
+ dest->message = y;
+ dest->need_free = true;
return 0;
}
-void sd_bus_error_set_const(sd_bus_error *e, const char *name, const char *message) {
+int sd_bus_error_set_const(sd_bus_error *e, const char *name, const char *message) {
if (!e)
- return;
- if (bus_error_is_dirty(e))
- return;
+ return 0;
- e->name = name;
- e->message = message;
- e->need_free = false;
+ assert_return(!bus_error_is_dirty(e), -EINVAL);
+ assert_return(name, -EINVAL);
+
+ *e = SD_BUS_ERROR_MAKE(name, message);
+ return 0;
}
int sd_bus_error_is_set(const sd_bus_error *e) {
return streq_ptr(e->name, name);
}
-int bus_error_to_errno(const sd_bus_error* e) {
+int sd_bus_error_get_errno(const sd_bus_error* e) {
/* Better replce this with a gperf table */
+ if (!e)
+ return EIO;
+
if (!e->name)
- return -EIO;
+ return EIO;
- if (streq(e->name, "org.freedesktop.DBus.Error.NoMemory"))
- return -ENOMEM;
+ if (streq(e->name, SD_BUS_ERROR_NO_MEMORY))
+ return ENOMEM;
+
+ if (streq(e->name, SD_BUS_ERROR_SERVICE_UNKNOWN))
+ return EHOSTUNREACH;
+
+ if (streq(e->name, SD_BUS_ERROR_NAME_HAS_NO_OWNER))
+ return ENXIO;
+
+ if (streq(e->name, SD_BUS_ERROR_NO_REPLY) ||
+ streq(e->name, SD_BUS_ERROR_TIMEOUT) ||
+ streq(e->name, "org.freedesktop.DBus.Error.TimedOut"))
+ return ETIMEDOUT;
+
+ if (streq(e->name, SD_BUS_ERROR_IO_ERROR))
+ return EIO;
+
+ if (streq(e->name, SD_BUS_ERROR_BAD_ADDRESS))
+ return EADDRNOTAVAIL;
+
+ if (streq(e->name, SD_BUS_ERROR_NOT_SUPPORTED))
+ return ENOTSUP;
+
+ if (streq(e->name, SD_BUS_ERROR_LIMITS_EXCEEDED))
+ return ENOBUFS;
+
+ if (streq(e->name, SD_BUS_ERROR_ACCESS_DENIED) ||
+ streq(e->name, SD_BUS_ERROR_AUTH_FAILED))
+ return EACCES;
- if (streq(e->name, "org.freedesktop.DBus.Error.AuthFailed") ||
- streq(e->name, "org.freedesktop.DBus.Error.AccessDenied"))
- return -EPERM;
+ if (streq(e->name, SD_BUS_ERROR_NO_SERVER))
+ return EHOSTDOWN;
- return -EIO;
+ if (streq(e->name, SD_BUS_ERROR_NO_NETWORK))
+ return ENONET;
+
+ if (streq(e->name, SD_BUS_ERROR_ADDRESS_IN_USE))
+ return EADDRINUSE;
+
+ if (streq(e->name, SD_BUS_ERROR_DISCONNECTED))
+ return ECONNRESET;
+
+ if (streq(e->name, SD_BUS_ERROR_INVALID_ARGS) ||
+ streq(e->name, SD_BUS_ERROR_INVALID_SIGNATURE) ||
+ streq(e->name, "org.freedesktop.DBus.Error.MatchRuleInvalid") ||
+ streq(e->name, "org.freedesktop.DBus.Error.InvalidFileContent"))
+ return EINVAL;
+
+ if (streq(e->name, SD_BUS_ERROR_FILE_NOT_FOUND) ||
+ streq(e->name, "org.freedesktop.DBus.Error.MatchRuleNotFound"))
+ return ENOENT;
+
+ if (streq(e->name, SD_BUS_ERROR_FILE_EXISTS))
+ return EEXIST;
+
+ if (streq(e->name, SD_BUS_ERROR_UNKNOWN_METHOD) ||
+ streq(e->name, SD_BUS_ERROR_UNKNOWN_OBJECT) ||
+ streq(e->name, SD_BUS_ERROR_UNKNOWN_INTERFACE) ||
+ streq(e->name, SD_BUS_ERROR_UNKNOWN_PROPERTY))
+ return EBADR;
+
+ if (streq(e->name, SD_BUS_ERROR_PROPERTY_READ_ONLY))
+ return EROFS;
+
+ if (streq(e->name, SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN) ||
+ streq(e->name, "org.freedesktop.DBus.Error.SELinuxSecurityContextUnknown"))
+ return ESRCH;
+
+ if (streq(e->name, SD_BUS_ERROR_INCONSISTENT_MESSAGE))
+ return EBADMSG;
+
+ if (streq(e->name, "org.freedesktop.DBus.Error.ObjectPathInUse"))
+ return EBUSY;
+
+ return EIO;
}
-int bus_error_from_errno(sd_bus_error *e, int error) {
+static int bus_error_set_strerror_or_const(sd_bus_error *e, const char *name, int error, const char *fallback) {
+ size_t k = 64;
+ char *n = NULL, *m = NULL;
+
+ if (error < 0)
+ error = -error;
+
if (!e)
- return error;
+ return -error;
+
+ assert_return(!bus_error_is_dirty(e), -EINVAL);
+ assert_return(name, -EINVAL);
+
+ for (;;) {
+ char *x;
+
+ m = new(char, k);
+ if (!m)
+ goto use_fallback;
+
+ errno = 0;
+ x = strerror_r(error, m, k);
+ if (errno == ERANGE || strlen(x) >= k - 1) {
+ free(m);
+ k *= 2;
+ continue;
+ }
+
+ if (!x || errno) {
+ free(m);
+ goto use_fallback;
+ }
+
+
+ if (x != m) {
+ free(m);
+ sd_bus_error_set_const(e, name, x);
+ return -error;
+ }
+
+ break;
+ }
+
+
+ n = strdup(name);
+ if (!n) {
+ free(m);
+ goto use_fallback;
+ }
+
+ e->name = n;
+ e->message = m;
+ e->need_free = true;
+
+ return -error;
+
+use_fallback:
+ sd_bus_error_set_const(e, name, fallback);
+ return -error;
+}
+
+static sd_bus_error map_from_errno(int error) {
+
+ if (error < 0)
+ error = -error;
+
+ switch (error) {
+
+ case ENOMEM:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_NO_NETWORK, "Out of memory");
+
+ case EPERM:
+ case EACCES:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_ACCESS_DENIED, "Access denied");
+
+ case EINVAL:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_INVALID_ARGS, "Invalid argument");
+
+ case ESRCH:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN, "No such process");
+
+ case ENOENT:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_FILE_NOT_FOUND, "File not found");
+
+ case EEXIST:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_FILE_EXISTS, "File exists");
+
+ case ETIMEDOUT:
+ case ETIME:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_TIMEOUT, "Timed out");
+
+ case EIO:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_IO_ERROR, "Input/output error");
+
+ case ENETRESET:
+ case ECONNABORTED:
+ case ECONNRESET:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_DISCONNECTED, "Disconnected");
+
+ case ENOTSUP:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_NOT_SUPPORTED, "Not supported");
+
+ case EADDRNOTAVAIL:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_BAD_ADDRESS, "Address not available");
+
+ case ENOBUFS:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_LIMITS_EXCEEDED, "Limits exceeded");
+
+ case EADDRINUSE:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_ADDRESS_IN_USE, "Address in use");
+
+ case EBADMSG:
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_INCONSISTENT_MESSAGE, "Inconsistent message");
+ }
+
+ return SD_BUS_ERROR_MAKE(SD_BUS_ERROR_FAILED, "Operation failed");
+}
+
+int sd_bus_error_set_errno(sd_bus_error *e, int error) {
+ sd_bus_error x;
+
+ x = map_from_errno(error);
+
+ return bus_error_set_strerror_or_const(e, x.name, error, x.message);
+}
+
+int bus_error_set_errnofv(sd_bus_error *e, int error, const char *format, va_list ap) {
+ sd_bus_error x;
+ int r;
+
+ if (error < 0)
+ error = -error;
+
+ if (!e)
+ return 0;
+
+ assert_return(!bus_error_is_dirty(e), -EINVAL);
+
+ x = map_from_errno(error);
+
+ if (format) {
+ char *n, *m;
+
+ r = vasprintf(&m, format, ap);
+ if (r < 0)
+ goto fallback;
+
+ n = strdup(x.name);
+ if (!n) {
+ free(m);
+ goto fallback;
+ }
+
+ e->name = n;
+ e->message = m;
+ e->need_free = true;
+ return -error;
+ }
+
+fallback:
+ return bus_error_set_strerror_or_const(e, x.name, error, x.message);
+}
+
+int sd_bus_error_set_errnof(sd_bus_error *e, int error, const char *format, ...) {
+ int r;
+
+ if (!e)
+ return 0;
+
+ assert_return(!bus_error_is_dirty(e), -EINVAL);
+
+ if (format) {
+ va_list ap;
+
+ va_start(ap, format);
+ r = bus_error_set_errnofv(e, error, format, ap);
+ va_end(ap);
+
+ return r;
+ }
+
+ return sd_bus_error_set_errno(e, error);
+}
+
+const char *bus_error_message(const sd_bus_error *e, int error) {
+
+ if (error < 0)
+ error = -error;
- if (error == -ENOMEM)
- sd_bus_error_set_const(e, "org.freedesktop.DBus.Error.NoMemory", strerror(-error));
- else if (error == -EPERM || error == EACCES)
- sd_bus_error_set_const(e, "org.freedesktop.DBus.Error.AccessDenied", strerror(-error));
- else
- sd_bus_error_set_const(e, "org.freedesktop.DBus.Error.Failed", "Operation failed");
+ if (e && e->message)
+ return e->message;
- return error;
+ return strerror(error);
}
~ianmdlvl / elogind.git / blobdiff