60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef GUACD_MOVE_FD_H
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#define GUACD_MOVE_FD_H
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#include "config.h"
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/**
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* Sends the given file descriptor along the given socket, allowing the
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* receiving process to use that file descriptor normally. Returns non-zero on
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* success, zero on error, just as a normal call to sendmsg() would. If an
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* error does occur, errno will be set appropriately.
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*
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* @param sock
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* The file descriptor of an open UNIX domain socket along which the file
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* descriptor specified by fd should be sent.
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*
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* @param fd
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* The file descriptor to send along the given UNIX domain socket.
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*
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* @return
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* Non-zero if the send operation succeeded, zero on error.
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*/
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int guacd_send_fd(int sock, int fd);
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/**
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* Waits for a file descriptor on the given socket, returning the received file
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* descriptor. The file descriptor must have been sent via guacd_send_fd. If an
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* error occurs, -1 is returned, and errno will be set appropriately.
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*
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* @param sock
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* The file descriptor of an open UNIX domain socket along which the file
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* descriptor will be sent (by guacd_send_fd()).
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*
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* @return
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* The received file descriptor, or -1 if an error occurs preventing
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* receipt of the file descriptor.
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*/
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int guacd_recv_fd(int sock);
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#endif
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