Virtual Method

GioResolverlookup_by_address

since: 2.22

Declaration [src]

gchar*
lookup_by_address (
  GResolver* resolver,
  GInetAddress* address,
  GCancellable* cancellable,
  GError** error
)

Description [src]

Synchronously reverse-resolves address to determine its associated hostname.

If the DNS resolution fails, error (if non-NULL) will be set to a value from GResolverError.

If cancellable is non-NULL, it can be used to cancel the operation, in which case error (if non-NULL) will be set to G_IO_ERROR_CANCELLED.

Available since: 2.22

Parameters

address

Type: GInetAddress

The address to reverse-resolve.

The data is owned by the caller of the method.

cancellable

Type: GCancellable

A GCancellable, or NULL.

The argument can be NULL.

The data is owned by the caller of the method.

error

Type: GError **

The return location for a recoverable error.

The argument can be NULL.

If the return location is not NULL, then you must initialize it to a NULL GError*.

The argument will be left initialized to NULL by the virtual function if there are no errors.

In case of error, the argument will be set to a newly allocated GError; the caller will take ownership of the data, and be responsible for freeing it.

Return value

Type: gchar*

A hostname (either ASCII-only, or in ASCII-encoded form), or NULL on error.

The caller of the method takes ownership of the returned data, and is responsible for freeing it.

The value is a NUL terminated UTF-8 string.