Return to nonblock.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / curl / lib

Annotation of embedaddon/curl/lib/nonblock.c, revision 1.1.1.1

1.1       misho       1: /***************************************************************************
                      2:  *                                  _   _ ____  _
                      3:  *  Project                     ___| | | |  _ \| |
                      4:  *                             / __| | | | |_) | |
                      5:  *                            | (__| |_| |  _ <| |___
                      6:  *                             \___|\___/|_| \_\_____|
                      7:  *
                      8:  * Copyright (C) 1998 - 2019, 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 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:   (void)sockfd;
                     52:   (void)nonblock;
                     53:   return 0; /* returns success */
                     54: 
                     55: #elif defined(HAVE_FCNTL_O_NONBLOCK)
                     56: 
                     57:   /* most recent unix versions */
                     58:   int flags;
                     59:   flags = sfcntl(sockfd, F_GETFL, 0);
                     60:   if(nonblock)
                     61:     return sfcntl(sockfd, F_SETFL, flags | O_NONBLOCK);
                     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: }