libs/libc/signal/sig_ignore.c

/****************************************************************************
 * libs/libc/signal/sig_ignore.c
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.  The
 * ASF licenses this file to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 ****************************************************************************/

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <signal.h>

/****************************************************************************
 * Public Functions
 ****************************************************************************/

/****************************************************************************
 * Name: sigignore
 *
 * Description:
 *   The sigignore() function will set the disposition of 'signo' to SIG_IGN.
 *
 ****************************************************************************/

int sigignore(int signo)
{
  struct sigaction act;
  int ret;

  /* Ignore the signal */

  act.sa_handler = SIG_IGN;
  act.sa_flags   = 0;

  ret = sigemptyset(&act.sa_mask);
  if (ret == OK)
    {
      ret = sigaction(signo, &act, NULL);
    }

  return ret;
}