1 /*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel (at) 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 https://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 "curl_setup.h" 24 25 #ifdef HAVE_SYS_IOCTL_H 26 #include <sys/ioctl.h> 27 #endif 28 #ifdef HAVE_FCNTL_H 29 #include <fcntl.h> 30 #endif 31 32 #if (defined(HAVE_IOCTL_FIONBIO) && defined(NETWARE)) 33 #include <sys/filio.h> 34 #endif 35 #ifdef __VMS 36 #include <in.h> 37 #include <inet.h> 38 #endif 39 40 #include "nonblock.h" 41 42 /* 43 * curlx_nonblock() set the given socket to either blocking or non-blocking 44 * mode based on the 'nonblock' boolean argument. This function is highly 45 * portable. 46 */ 47 int curlx_nonblock(curl_socket_t sockfd, /* operate on this */ 48 int nonblock /* TRUE or FALSE */) 49 { 50 #if defined(USE_BLOCKING_SOCKETS) 51 52 return 0; /* returns success */ 53 54 #elif defined(HAVE_FCNTL_O_NONBLOCK) 55 56 /* most recent unix versions */ 57 int flags; 58 flags = sfcntl(sockfd, F_GETFL, 0); 59 if(nonblock) 60 return sfcntl(sockfd, F_SETFL, flags | O_NONBLOCK); 61 else 62 return sfcntl(sockfd, F_SETFL, flags & (~O_NONBLOCK)); 63 64 #elif defined(HAVE_IOCTL_FIONBIO) 65 66 /* older unix versions */ 67 int flags = nonblock ? 1 : 0; 68 return ioctl(sockfd, FIONBIO, &flags); 69 70 #elif defined(HAVE_IOCTLSOCKET_FIONBIO) 71 72 /* Windows */ 73 unsigned long flags = nonblock ? 1UL : 0UL; 74 return ioctlsocket(sockfd, FIONBIO, &flags); 75 76 #elif defined(HAVE_IOCTLSOCKET_CAMEL_FIONBIO) 77 78 /* Amiga */ 79 long flags = nonblock ? 1L : 0L; 80 return IoctlSocket(sockfd, FIONBIO, (char *)&flags); 81 82 #elif defined(HAVE_SETSOCKOPT_SO_NONBLOCK) 83 84 /* BeOS */ 85 long b = nonblock ? 1L : 0L; 86 return setsockopt(sockfd, SOL_SOCKET, SO_NONBLOCK, &b, sizeof(b)); 87 88 #else 89 # error "no non-blocking method was found/used/set" 90 #endif 91 } 92
