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-rw-r--r--resolv/gai_cancel.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/resolv/gai_cancel.c b/resolv/gai_cancel.c
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+/* Copyright (C) 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <netdb.h>
+#include <pthread.h>
+
+#include "gai_misc.h"
+
+
+int
+gai_cancel (struct gaicb *gaicbp)
+{
+ int result = 0;
+ int status;
+
+ /* Request the mutex. */
+ pthread_mutex_lock (&__gai_requests_mutex);
+
+ /* Find the request among those queued but not yet running. */
+ status = __gai_remove_request (gaicbp);
+ if (status == 0)
+ result = EAI_CANCELED;
+ else if (status > 0)
+ result = EAI_NOTCANCELED;
+ else
+ result = EAI_ALLDONE;
+
+ /* Release the mutex. */
+ pthread_mutex_unlock (&__gai_requests_mutex);
+
+ return result;
+}