1/*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al. 9 * 10 * This software is licensed as described in the file COPYING, which 11 * you should have received as part of this distribution. The terms 12 * are also available at http://curl.haxx.se/docs/copyright.html. 13 * 14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 * copies of the Software, and permit persons to whom the Software is 16 * furnished to do so, under the terms of the COPYING file. 17 * 18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 * KIND, either express or implied. 20 * 21 ***************************************************************************/ 22 23#include "setup.h" 24 25#ifdef HAVE_SYS_SOCKET_H 26#include <sys/socket.h> 27#endif 28#ifdef HAVE_SYS_IOCTL_H 29#include <sys/ioctl.h> 30#endif 31#ifdef HAVE_UNISTD_H 32#include <unistd.h> 33#endif 34#ifdef HAVE_FCNTL_H 35#include <fcntl.h> 36#endif 37#ifdef HAVE_STDLIB_H 38#include <stdlib.h> 39#endif 40 41#if (defined(HAVE_IOCTL_FIONBIO) && defined(NETWARE)) 42#include <sys/filio.h> 43#endif 44#ifdef __VMS 45#include <in.h> 46#include <inet.h> 47#endif 48 49#include "nonblock.h" 50 51/* 52 * curlx_nonblock() set the given socket to either blocking or non-blocking 53 * mode based on the 'nonblock' boolean argument. This function is highly 54 * portable. 55 */ 56int curlx_nonblock(curl_socket_t sockfd, /* operate on this */ 57 int nonblock /* TRUE or FALSE */) 58{ 59#if defined(USE_BLOCKING_SOCKETS) 60 61 return 0; /* returns success */ 62 63#elif defined(HAVE_FCNTL_O_NONBLOCK) 64 65 /* most recent unix versions */ 66 int flags; 67 flags = fcntl(sockfd, F_GETFL, 0); 68 if(FALSE != nonblock) 69 return fcntl(sockfd, F_SETFL, flags | O_NONBLOCK); 70 else 71 return fcntl(sockfd, F_SETFL, flags & (~O_NONBLOCK)); 72 73#elif defined(HAVE_IOCTL_FIONBIO) 74 75 /* older unix versions */ 76 int flags; 77 flags = nonblock; 78 return ioctl(sockfd, FIONBIO, &flags); 79 80#elif defined(HAVE_IOCTLSOCKET_FIONBIO) 81 82 /* Windows */ 83 unsigned long flags; 84 flags = nonblock; 85 return ioctlsocket(sockfd, FIONBIO, &flags); 86 87#elif defined(HAVE_IOCTLSOCKET_CAMEL_FIONBIO) 88 89 /* Amiga */ 90 return IoctlSocket(sockfd, FIONBIO, (long)nonblock); 91 92#elif defined(HAVE_SETSOCKOPT_SO_NONBLOCK) 93 94 /* BeOS */ 95 long b = nonblock ? 1 : 0; 96 return setsockopt(sockfd, SOL_SOCKET, SO_NONBLOCK, &b, sizeof(b)); 97 98#else 99# error "no non-blocking method was found/used/set" 100#endif 101} 102