| /* Copyright (C) 2004 by Daniel Stenberg et al |
| * |
| * Permission to use, copy, modify, and distribute this software and its |
| * documentation for any purpose and without fee is hereby granted, provided |
| * that the above copyright notice appear in all copies and that both that |
| * copyright notice and this permission notice appear in supporting |
| * documentation, and that the name of M.I.T. not be used in advertising or |
| * publicity pertaining to distribution of the software without specific, |
| * written prior permission. M.I.T. makes no representations about the |
| * suitability of this software for any purpose. It is provided "as is" |
| * without express or implied warranty. |
| */ |
| |
| #include "setup.h" |
| #include <stdlib.h> |
| #include "ares.h" |
| #include "ares_private.h" |
| |
| /* |
| * ares_cancel() cancels a ongoing request/resolve that might be going on on |
| * the given channel. It does NOT kill the channel, use ares_destroy() for |
| * that. |
| */ |
| void ares_cancel(ares_channel channel) |
| { |
| struct query *query, *next; |
| int i; |
| |
| for (query = channel->queries; query; query = next) |
| { |
| next = query->next; |
| query->callback(query->arg, ARES_ETIMEOUT, NULL, 0); |
| free(query->tcpbuf); |
| free(query->skip_server); |
| free(query); |
| } |
| channel->queries = NULL; |
| if (!(channel->flags & ARES_FLAG_STAYOPEN)) |
| { |
| for (i = 0; i < channel->nservers; i++) |
| ares__close_sockets(&channel->servers[i]); |
| } |
| } |