85 строки
2.4 KiB
C
85 строки
2.4 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "curl_setup.h"
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#ifdef HAVE_SYS_IOCTL_H
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#include <sys/ioctl.h>
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#endif
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#ifdef __VMS
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#include <in.h>
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#include <inet.h>
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#endif
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#include "nonblock.h"
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/*
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* curlx_nonblock() set the given socket to either blocking or non-blocking
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* mode based on the 'nonblock' boolean argument. This function is highly
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* portable.
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*/
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int curlx_nonblock(curl_socket_t sockfd, /* operate on this */
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int nonblock /* TRUE or FALSE */)
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{
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#if defined(HAVE_FCNTL_O_NONBLOCK)
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/* most recent unix versions */
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int flags;
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flags = sfcntl(sockfd, F_GETFL, 0);
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if(nonblock)
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return sfcntl(sockfd, F_SETFL, flags | O_NONBLOCK);
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return sfcntl(sockfd, F_SETFL, flags & (~O_NONBLOCK));
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#elif defined(HAVE_IOCTL_FIONBIO)
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/* older unix versions */
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int flags = nonblock ? 1 : 0;
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return ioctl(sockfd, FIONBIO, &flags);
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#elif defined(HAVE_IOCTLSOCKET_FIONBIO)
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/* Windows */
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unsigned long flags = nonblock ? 1UL : 0UL;
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return ioctlsocket(sockfd, FIONBIO, &flags);
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#elif defined(HAVE_IOCTLSOCKET_CAMEL_FIONBIO)
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/* Amiga */
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long flags = nonblock ? 1L : 0L;
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return IoctlSocket(sockfd, FIONBIO, (char *)&flags);
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#elif defined(HAVE_SETSOCKOPT_SO_NONBLOCK)
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/* Orbis OS */
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long b = nonblock ? 1L : 0L;
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return setsockopt(sockfd, SOL_SOCKET, SO_NONBLOCK, &b, sizeof(b));
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#else
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# error "no non-blocking method was found/used/set"
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#endif
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}
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