1 | /* $Id: socket.cpp 56978 2015-07-18 18:55:25Z vboxsync $ */
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2 | /** @file
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3 | * IPRT - Network Sockets.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2015 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | *
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17 | * The contents of this file may alternatively be used under the terms
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18 | * of the Common Development and Distribution License Version 1.0
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19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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20 | * VirtualBox OSE distribution, in which case the provisions of the
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21 | * CDDL are applicable instead of those of the GPL.
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22 | *
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23 | * You may elect to license modified versions of this file under the
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24 | * terms and conditions of either the GPL or the CDDL or both.
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25 | */
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26 |
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27 |
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28 | /*******************************************************************************
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29 | * Header Files *
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30 | *******************************************************************************/
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31 | #ifdef RT_OS_WINDOWS
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32 | # include <winsock2.h>
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33 | # include <ws2tcpip.h>
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34 | #else /* !RT_OS_WINDOWS */
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35 | # include <errno.h>
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36 | # include <sys/select.h>
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37 | # include <sys/stat.h>
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38 | # include <sys/socket.h>
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39 | # include <netinet/in.h>
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40 | # include <netinet/tcp.h>
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41 | # include <arpa/inet.h>
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42 | # ifdef IPRT_WITH_TCPIP_V6
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43 | # include <netinet6/in6.h>
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44 | # endif
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45 | # include <sys/un.h>
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46 | # include <netdb.h>
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47 | # include <unistd.h>
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48 | # include <fcntl.h>
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49 | # include <sys/uio.h>
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50 | #endif /* !RT_OS_WINDOWS */
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51 | #include <limits.h>
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52 |
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53 | #include "internal/iprt.h"
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54 | #include <iprt/socket.h>
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55 |
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56 | #include <iprt/alloca.h>
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57 | #include <iprt/asm.h>
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58 | #include <iprt/assert.h>
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59 | #include <iprt/ctype.h>
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60 | #include <iprt/err.h>
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61 | #include <iprt/mempool.h>
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62 | #include <iprt/poll.h>
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63 | #include <iprt/string.h>
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64 | #include <iprt/thread.h>
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65 | #include <iprt/time.h>
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66 | #include <iprt/mem.h>
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67 | #include <iprt/sg.h>
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68 | #include <iprt/log.h>
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69 |
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70 | #include "internal/magics.h"
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71 | #include "internal/socket.h"
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72 | #include "internal/string.h"
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73 |
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74 |
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75 | /*******************************************************************************
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76 | * Defined Constants And Macros *
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77 | *******************************************************************************/
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78 | /* non-standard linux stuff (it seems). */
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79 | #ifndef MSG_NOSIGNAL
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80 | # define MSG_NOSIGNAL 0
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81 | #endif
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82 |
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83 | /* Windows has different names for SHUT_XXX. */
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84 | #ifndef SHUT_RDWR
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85 | # ifdef SD_BOTH
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86 | # define SHUT_RDWR SD_BOTH
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87 | # else
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88 | # define SHUT_RDWR 2
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89 | # endif
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90 | #endif
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91 | #ifndef SHUT_WR
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92 | # ifdef SD_SEND
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93 | # define SHUT_WR SD_SEND
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94 | # else
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95 | # define SHUT_WR 1
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96 | # endif
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97 | #endif
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98 | #ifndef SHUT_RD
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99 | # ifdef SD_RECEIVE
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100 | # define SHUT_RD SD_RECEIVE
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101 | # else
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102 | # define SHUT_RD 0
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103 | # endif
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104 | #endif
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105 |
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106 | /* fixup backlevel OSes. */
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107 | #if defined(RT_OS_OS2) || defined(RT_OS_WINDOWS)
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108 | # define socklen_t int
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109 | #endif
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110 |
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111 | /** How many pending connection. */
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112 | #define RTTCP_SERVER_BACKLOG 10
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113 |
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114 | /* Limit read and write sizes on Windows and OS/2. */
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115 | #ifdef RT_OS_WINDOWS
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116 | # define RTSOCKET_MAX_WRITE (INT_MAX / 2)
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117 | # define RTSOCKET_MAX_READ (INT_MAX / 2)
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118 | #elif defined(RT_OS_OS2)
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119 | # define RTSOCKET_MAX_WRITE 0x10000
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120 | # define RTSOCKET_MAX_READ 0x10000
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121 | #endif
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122 |
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123 |
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124 | /*******************************************************************************
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125 | * Structures and Typedefs *
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126 | *******************************************************************************/
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127 | /**
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128 | * Socket handle data.
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129 | *
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130 | * This is mainly required for implementing RTPollSet on Windows.
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131 | */
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132 | typedef struct RTSOCKETINT
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133 | {
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134 | /** Magic number (RTSOCKET_MAGIC). */
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135 | uint32_t u32Magic;
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136 | /** Exclusive user count.
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137 | * This is used to prevent two threads from accessing the handle concurrently.
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138 | * It can be higher than 1 if this handle is reference multiple times in a
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139 | * polling set (Windows). */
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140 | uint32_t volatile cUsers;
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141 | /** The native socket handle. */
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142 | RTSOCKETNATIVE hNative;
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143 | /** Indicates whether the handle has been closed or not. */
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144 | bool volatile fClosed;
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145 | /** Indicates whether the socket is operating in blocking or non-blocking mode
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146 | * currently. */
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147 | bool fBlocking;
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148 | #if defined(RT_OS_WINDOWS) || defined(RT_OS_OS2)
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149 | /** The pollset currently polling this socket. This is NIL if no one is
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150 | * polling. */
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151 | RTPOLLSET hPollSet;
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152 | #endif
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153 | #ifdef RT_OS_WINDOWS
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154 | /** The event semaphore we've associated with the socket handle.
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155 | * This is WSA_INVALID_EVENT if not done. */
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156 | WSAEVENT hEvent;
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157 | /** The events we're polling for. */
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158 | uint32_t fPollEvts;
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159 | /** The events we're currently subscribing to with WSAEventSelect.
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160 | * This is ZERO if we're currently not subscribing to anything. */
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161 | uint32_t fSubscribedEvts;
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162 | /** Saved events which are only posted once. */
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163 | uint32_t fEventsSaved;
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164 | #endif /* RT_OS_WINDOWS */
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165 | } RTSOCKETINT;
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166 |
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167 |
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168 | /**
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169 | * Address union used internally for things like getpeername and getsockname.
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170 | */
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171 | typedef union RTSOCKADDRUNION
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172 | {
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173 | struct sockaddr Addr;
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174 | struct sockaddr_in IPv4;
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175 | #ifdef IPRT_WITH_TCPIP_V6
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176 | struct sockaddr_in6 IPv6;
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177 | #endif
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178 | } RTSOCKADDRUNION;
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179 |
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180 |
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181 | /**
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182 | * Get the last error as an iprt status code.
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183 | *
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184 | * @returns IPRT status code.
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185 | */
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186 | DECLINLINE(int) rtSocketError(void)
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187 | {
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188 | #ifdef RT_OS_WINDOWS
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189 | return RTErrConvertFromWin32(WSAGetLastError());
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190 | #else
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191 | return RTErrConvertFromErrno(errno);
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192 | #endif
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193 | }
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194 |
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195 |
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196 | /**
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197 | * Resets the last error.
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198 | */
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199 | DECLINLINE(void) rtSocketErrorReset(void)
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200 | {
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201 | #ifdef RT_OS_WINDOWS
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202 | WSASetLastError(0);
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203 | #else
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204 | errno = 0;
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205 | #endif
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206 | }
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207 |
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208 |
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209 | /**
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210 | * Get the last resolver error as an iprt status code.
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211 | *
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212 | * @returns iprt status code.
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213 | */
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214 | int rtSocketResolverError(void)
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215 | {
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216 | #ifdef RT_OS_WINDOWS
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217 | return RTErrConvertFromWin32(WSAGetLastError());
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218 | #else
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219 | switch (h_errno)
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220 | {
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221 | case HOST_NOT_FOUND:
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222 | return VERR_NET_HOST_NOT_FOUND;
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223 | case NO_DATA:
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224 | return VERR_NET_ADDRESS_NOT_AVAILABLE;
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225 | case NO_RECOVERY:
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226 | return VERR_IO_GEN_FAILURE;
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227 | case TRY_AGAIN:
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228 | return VERR_TRY_AGAIN;
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229 |
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230 | default:
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231 | return VERR_UNRESOLVED_ERROR;
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232 | }
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233 | #endif
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234 | }
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235 |
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236 |
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237 | /**
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238 | * Converts from a native socket address to a generic IPRT network address.
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239 | *
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240 | * @returns IPRT status code.
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241 | * @param pSrc The source address.
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242 | * @param cbSrc The size of the source address.
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243 | * @param pAddr Where to return the generic IPRT network
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244 | * address.
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245 | */
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246 | static int rtSocketNetAddrFromAddr(RTSOCKADDRUNION const *pSrc, size_t cbSrc, PRTNETADDR pAddr)
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247 | {
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248 | /*
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249 | * Convert the address.
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250 | */
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251 | if ( cbSrc == sizeof(struct sockaddr_in)
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252 | && pSrc->Addr.sa_family == AF_INET)
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253 | {
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254 | RT_ZERO(*pAddr);
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255 | pAddr->enmType = RTNETADDRTYPE_IPV4;
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256 | pAddr->uPort = RT_N2H_U16(pSrc->IPv4.sin_port);
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257 | pAddr->uAddr.IPv4.u = pSrc->IPv4.sin_addr.s_addr;
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258 | }
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259 | #ifdef IPRT_WITH_TCPIP_V6
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260 | else if ( cbSrc == sizeof(struct sockaddr_in6)
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261 | && pSrc->Addr.sa_family == AF_INET6)
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262 | {
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263 | RT_ZERO(*pAddr);
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264 | pAddr->enmType = RTNETADDRTYPE_IPV6;
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265 | pAddr->uPort = RT_N2H_U16(pSrc->IPv6.sin6_port);
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266 | pAddr->uAddr.IPv6.au32[0] = pSrc->IPv6.sin6_addr.s6_addr32[0];
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267 | pAddr->uAddr.IPv6.au32[1] = pSrc->IPv6.sin6_addr.s6_addr32[1];
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268 | pAddr->uAddr.IPv6.au32[2] = pSrc->IPv6.sin6_addr.s6_addr32[2];
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269 | pAddr->uAddr.IPv6.au32[3] = pSrc->IPv6.sin6_addr.s6_addr32[3];
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270 | }
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271 | #endif
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272 | else
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273 | return VERR_NET_ADDRESS_FAMILY_NOT_SUPPORTED;
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274 | return VINF_SUCCESS;
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275 | }
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276 |
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277 |
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278 | /**
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279 | * Converts from a generic IPRT network address to a native socket address.
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280 | *
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281 | * @returns IPRT status code.
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282 | * @param pAddr Pointer to the generic IPRT network address.
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283 | * @param pDst The source address.
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284 | * @param cbSrc The size of the source address.
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285 | * @param pcbAddr Where to store the size of the returned address.
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286 | * Optional
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287 | */
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288 | static int rtSocketAddrFromNetAddr(PCRTNETADDR pAddr, RTSOCKADDRUNION *pDst, size_t cbDst, int *pcbAddr)
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289 | {
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290 | RT_BZERO(pDst, cbDst);
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291 | if ( pAddr->enmType == RTNETADDRTYPE_IPV4
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292 | && cbDst >= sizeof(struct sockaddr_in))
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293 | {
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294 | pDst->Addr.sa_family = AF_INET;
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295 | pDst->IPv4.sin_port = RT_H2N_U16(pAddr->uPort);
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296 | pDst->IPv4.sin_addr.s_addr = pAddr->uAddr.IPv4.u;
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297 | if (pcbAddr)
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298 | *pcbAddr = sizeof(pDst->IPv4);
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299 | }
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300 | #ifdef IPRT_WITH_TCPIP_V6
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301 | else if ( pAddr->enmType == RTNETADDRTYPE_IPV6
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302 | && cbDst >= sizeof(struct sockaddr_in6))
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303 | {
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304 | pDst->Addr.sa_family = AF_INET6;
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305 | pDst->IPv6.sin6_port = RT_H2N_U16(pAddr->uPort);
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306 | pSrc->IPv6.sin6_addr.s6_addr32[0] = pAddr->uAddr.IPv6.au32[0];
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307 | pSrc->IPv6.sin6_addr.s6_addr32[1] = pAddr->uAddr.IPv6.au32[1];
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308 | pSrc->IPv6.sin6_addr.s6_addr32[2] = pAddr->uAddr.IPv6.au32[2];
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309 | pSrc->IPv6.sin6_addr.s6_addr32[3] = pAddr->uAddr.IPv6.au32[3];
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310 | if (pcbAddr)
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311 | *pcbAddr = sizeof(pDst->IPv6);
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312 | }
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313 | #endif
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314 | else
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315 | return VERR_NET_ADDRESS_FAMILY_NOT_SUPPORTED;
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316 | return VINF_SUCCESS;
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317 | }
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318 |
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319 |
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320 | /**
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321 | * Tries to lock the socket for exclusive usage by the calling thread.
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322 | *
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323 | * Call rtSocketUnlock() to unlock.
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324 | *
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325 | * @returns @c true if locked, @c false if not.
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326 | * @param pThis The socket structure.
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327 | */
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328 | DECLINLINE(bool) rtSocketTryLock(RTSOCKETINT *pThis)
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329 | {
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330 | return ASMAtomicCmpXchgU32(&pThis->cUsers, 1, 0);
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331 | }
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332 |
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333 |
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334 | /**
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335 | * Unlocks the socket.
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336 | *
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337 | * @param pThis The socket structure.
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338 | */
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339 | DECLINLINE(void) rtSocketUnlock(RTSOCKETINT *pThis)
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340 | {
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341 | ASMAtomicCmpXchgU32(&pThis->cUsers, 0, 1);
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342 | }
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343 |
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344 |
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345 | /**
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346 | * The slow path of rtSocketSwitchBlockingMode that does the actual switching.
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347 | *
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348 | * @returns IPRT status code.
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349 | * @param pThis The socket structure.
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350 | * @param fBlocking The desired mode of operation.
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351 | * @remarks Do not call directly.
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352 | */
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353 | static int rtSocketSwitchBlockingModeSlow(RTSOCKETINT *pThis, bool fBlocking)
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354 | {
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355 | #ifdef RT_OS_WINDOWS
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356 | u_long uBlocking = fBlocking ? 0 : 1;
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357 | if (ioctlsocket(pThis->hNative, FIONBIO, &uBlocking))
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358 | return rtSocketError();
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359 |
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360 | #else
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361 | int fFlags = fcntl(pThis->hNative, F_GETFL, 0);
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362 | if (fFlags == -1)
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363 | return rtSocketError();
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364 |
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365 | if (fBlocking)
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366 | fFlags &= ~O_NONBLOCK;
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367 | else
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368 | fFlags |= O_NONBLOCK;
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369 | if (fcntl(pThis->hNative, F_SETFL, fFlags) == -1)
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370 | return rtSocketError();
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371 | #endif
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372 |
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373 | pThis->fBlocking = fBlocking;
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374 | return VINF_SUCCESS;
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375 | }
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376 |
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377 |
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378 | /**
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379 | * Switches the socket to the desired blocking mode if necessary.
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380 | *
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381 | * The socket must be locked.
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382 | *
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383 | * @returns IPRT status code.
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384 | * @param pThis The socket structure.
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385 | * @param fBlocking The desired mode of operation.
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386 | */
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387 | DECLINLINE(int) rtSocketSwitchBlockingMode(RTSOCKETINT *pThis, bool fBlocking)
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388 | {
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389 | if (pThis->fBlocking != fBlocking)
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390 | return rtSocketSwitchBlockingModeSlow(pThis, fBlocking);
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391 | return VINF_SUCCESS;
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392 | }
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393 |
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394 |
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395 | /**
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396 | * Creates an IPRT socket handle for a native one.
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397 | *
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398 | * @returns IPRT status code.
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399 | * @param ppSocket Where to return the IPRT socket handle.
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400 | * @param hNative The native handle.
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401 | */
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402 | int rtSocketCreateForNative(RTSOCKETINT **ppSocket, RTSOCKETNATIVE hNative)
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403 | {
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404 | RTSOCKETINT *pThis = (RTSOCKETINT *)RTMemPoolAlloc(RTMEMPOOL_DEFAULT, sizeof(*pThis));
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405 | if (!pThis)
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406 | return VERR_NO_MEMORY;
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407 | pThis->u32Magic = RTSOCKET_MAGIC;
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408 | pThis->cUsers = 0;
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409 | pThis->hNative = hNative;
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410 | pThis->fClosed = false;
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411 | pThis->fBlocking = true;
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412 | #if defined(RT_OS_WINDOWS) || defined(RT_OS_OS2)
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413 | pThis->hPollSet = NIL_RTPOLLSET;
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414 | #endif
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415 | #ifdef RT_OS_WINDOWS
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416 | pThis->hEvent = WSA_INVALID_EVENT;
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417 | pThis->fPollEvts = 0;
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418 | pThis->fSubscribedEvts = 0;
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419 | #endif
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420 | *ppSocket = pThis;
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421 | return VINF_SUCCESS;
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422 | }
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423 |
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424 |
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425 | RTDECL(int) RTSocketFromNative(PRTSOCKET phSocket, RTHCINTPTR uNative)
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426 | {
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427 | AssertReturn(uNative != NIL_RTSOCKETNATIVE, VERR_INVALID_PARAMETER);
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428 | #ifndef RT_OS_WINDOWS
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429 | AssertReturn(uNative >= 0, VERR_INVALID_PARAMETER);
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430 | #endif
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431 | AssertPtrReturn(phSocket, VERR_INVALID_POINTER);
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432 | return rtSocketCreateForNative(phSocket, uNative);
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433 | }
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434 |
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435 |
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436 | /**
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437 | * Wrapper around socket().
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438 | *
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439 | * @returns IPRT status code.
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440 | * @param phSocket Where to store the handle to the socket on
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441 | * success.
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442 | * @param iDomain The protocol family (PF_XXX).
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443 | * @param iType The socket type (SOCK_XXX).
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444 | * @param iProtocol Socket parameter, usually 0.
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445 | */
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446 | int rtSocketCreate(PRTSOCKET phSocket, int iDomain, int iType, int iProtocol)
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447 | {
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448 | /*
|
---|
449 | * Create the socket.
|
---|
450 | */
|
---|
451 | RTSOCKETNATIVE hNative = socket(iDomain, iType, iProtocol);
|
---|
452 | if (hNative == NIL_RTSOCKETNATIVE)
|
---|
453 | return rtSocketError();
|
---|
454 |
|
---|
455 | /*
|
---|
456 | * Wrap it.
|
---|
457 | */
|
---|
458 | int rc = rtSocketCreateForNative(phSocket, hNative);
|
---|
459 | if (RT_FAILURE(rc))
|
---|
460 | {
|
---|
461 | #ifdef RT_OS_WINDOWS
|
---|
462 | closesocket(hNative);
|
---|
463 | #else
|
---|
464 | close(hNative);
|
---|
465 | #endif
|
---|
466 | }
|
---|
467 | return rc;
|
---|
468 | }
|
---|
469 |
|
---|
470 |
|
---|
471 | RTDECL(uint32_t) RTSocketRetain(RTSOCKET hSocket)
|
---|
472 | {
|
---|
473 | RTSOCKETINT *pThis = hSocket;
|
---|
474 | AssertPtrReturn(pThis, UINT32_MAX);
|
---|
475 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, UINT32_MAX);
|
---|
476 | return RTMemPoolRetain(pThis);
|
---|
477 | }
|
---|
478 |
|
---|
479 |
|
---|
480 | /**
|
---|
481 | * Worker for RTSocketRelease and RTSocketClose.
|
---|
482 | *
|
---|
483 | * @returns IPRT status code.
|
---|
484 | * @param pThis The socket handle instance data.
|
---|
485 | * @param fDestroy Whether we're reaching ref count zero.
|
---|
486 | */
|
---|
487 | static int rtSocketCloseIt(RTSOCKETINT *pThis, bool fDestroy)
|
---|
488 | {
|
---|
489 | /*
|
---|
490 | * Invalidate the handle structure on destroy.
|
---|
491 | */
|
---|
492 | if (fDestroy)
|
---|
493 | {
|
---|
494 | Assert(ASMAtomicReadU32(&pThis->u32Magic) == RTSOCKET_MAGIC);
|
---|
495 | ASMAtomicWriteU32(&pThis->u32Magic, RTSOCKET_MAGIC_DEAD);
|
---|
496 | }
|
---|
497 |
|
---|
498 | int rc = VINF_SUCCESS;
|
---|
499 | if (ASMAtomicCmpXchgBool(&pThis->fClosed, true, false))
|
---|
500 | {
|
---|
501 | /*
|
---|
502 | * Close the native handle.
|
---|
503 | */
|
---|
504 | RTSOCKETNATIVE hNative = pThis->hNative;
|
---|
505 | if (hNative != NIL_RTSOCKETNATIVE)
|
---|
506 | {
|
---|
507 | pThis->hNative = NIL_RTSOCKETNATIVE;
|
---|
508 |
|
---|
509 | #ifdef RT_OS_WINDOWS
|
---|
510 | if (closesocket(hNative))
|
---|
511 | #else
|
---|
512 | if (close(hNative))
|
---|
513 | #endif
|
---|
514 | {
|
---|
515 | rc = rtSocketError();
|
---|
516 | #ifdef RT_OS_WINDOWS
|
---|
517 | AssertMsgFailed(("closesocket(%p) -> %Rrc\n", (uintptr_t)hNative, rc));
|
---|
518 | #else
|
---|
519 | AssertMsgFailed(("close(%d) -> %Rrc\n", hNative, rc));
|
---|
520 | #endif
|
---|
521 | }
|
---|
522 | }
|
---|
523 |
|
---|
524 | #ifdef RT_OS_WINDOWS
|
---|
525 | /*
|
---|
526 | * Close the event.
|
---|
527 | */
|
---|
528 | WSAEVENT hEvent = pThis->hEvent;
|
---|
529 | if (hEvent == WSA_INVALID_EVENT)
|
---|
530 | {
|
---|
531 | pThis->hEvent = WSA_INVALID_EVENT;
|
---|
532 | WSACloseEvent(hEvent);
|
---|
533 | }
|
---|
534 | #endif
|
---|
535 | }
|
---|
536 |
|
---|
537 | return rc;
|
---|
538 | }
|
---|
539 |
|
---|
540 |
|
---|
541 | RTDECL(uint32_t) RTSocketRelease(RTSOCKET hSocket)
|
---|
542 | {
|
---|
543 | RTSOCKETINT *pThis = hSocket;
|
---|
544 | if (pThis == NIL_RTSOCKET)
|
---|
545 | return 0;
|
---|
546 | AssertPtrReturn(pThis, UINT32_MAX);
|
---|
547 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, UINT32_MAX);
|
---|
548 |
|
---|
549 | /* get the refcount without killing it... */
|
---|
550 | uint32_t cRefs = RTMemPoolRefCount(pThis);
|
---|
551 | AssertReturn(cRefs != UINT32_MAX, UINT32_MAX);
|
---|
552 | if (cRefs == 1)
|
---|
553 | rtSocketCloseIt(pThis, true);
|
---|
554 |
|
---|
555 | return RTMemPoolRelease(RTMEMPOOL_DEFAULT, pThis);
|
---|
556 | }
|
---|
557 |
|
---|
558 |
|
---|
559 | RTDECL(int) RTSocketClose(RTSOCKET hSocket)
|
---|
560 | {
|
---|
561 | RTSOCKETINT *pThis = hSocket;
|
---|
562 | if (pThis == NIL_RTSOCKET)
|
---|
563 | return VINF_SUCCESS;
|
---|
564 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
565 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
566 |
|
---|
567 | uint32_t cRefs = RTMemPoolRefCount(pThis);
|
---|
568 | AssertReturn(cRefs != UINT32_MAX, UINT32_MAX);
|
---|
569 |
|
---|
570 | int rc = rtSocketCloseIt(pThis, cRefs == 1);
|
---|
571 |
|
---|
572 | RTMemPoolRelease(RTMEMPOOL_DEFAULT, pThis);
|
---|
573 | return rc;
|
---|
574 | }
|
---|
575 |
|
---|
576 |
|
---|
577 | RTDECL(RTHCUINTPTR) RTSocketToNative(RTSOCKET hSocket)
|
---|
578 | {
|
---|
579 | RTSOCKETINT *pThis = hSocket;
|
---|
580 | AssertPtrReturn(pThis, RTHCUINTPTR_MAX);
|
---|
581 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, RTHCUINTPTR_MAX);
|
---|
582 | return (RTHCUINTPTR)pThis->hNative;
|
---|
583 | }
|
---|
584 |
|
---|
585 |
|
---|
586 | RTDECL(int) RTSocketSetInheritance(RTSOCKET hSocket, bool fInheritable)
|
---|
587 | {
|
---|
588 | RTSOCKETINT *pThis = hSocket;
|
---|
589 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
590 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
591 | AssertReturn(RTMemPoolRefCount(pThis) >= (pThis->cUsers ? 2U : 1U), VERR_CALLER_NO_REFERENCE);
|
---|
592 |
|
---|
593 | int rc = VINF_SUCCESS;
|
---|
594 | #ifdef RT_OS_WINDOWS
|
---|
595 | if (!SetHandleInformation((HANDLE)pThis->hNative, HANDLE_FLAG_INHERIT, fInheritable ? HANDLE_FLAG_INHERIT : 0))
|
---|
596 | rc = RTErrConvertFromWin32(GetLastError());
|
---|
597 | #else
|
---|
598 | if (fcntl(pThis->hNative, F_SETFD, fInheritable ? 0 : FD_CLOEXEC) < 0)
|
---|
599 | rc = RTErrConvertFromErrno(errno);
|
---|
600 | #endif
|
---|
601 |
|
---|
602 | return rc;
|
---|
603 | }
|
---|
604 |
|
---|
605 |
|
---|
606 | static bool rtSocketIsIPv4Numerical(const char *pszAddress, PRTNETADDRIPV4 pAddr)
|
---|
607 | {
|
---|
608 |
|
---|
609 | /* Empty address resolves to the INADDR_ANY address (good for bind). */
|
---|
610 | if (!pszAddress || !*pszAddress)
|
---|
611 | {
|
---|
612 | pAddr->u = INADDR_ANY;
|
---|
613 | return true;
|
---|
614 | }
|
---|
615 |
|
---|
616 | /* Four quads? */
|
---|
617 | char *psz = (char *)pszAddress;
|
---|
618 | for (int i = 0; i < 4; i++)
|
---|
619 | {
|
---|
620 | uint8_t u8;
|
---|
621 | int rc = RTStrToUInt8Ex(psz, &psz, 0, &u8);
|
---|
622 | if (rc != VINF_SUCCESS && rc != VWRN_TRAILING_CHARS)
|
---|
623 | return false;
|
---|
624 | if (*psz != (i < 3 ? '.' : '\0'))
|
---|
625 | return false;
|
---|
626 | psz++;
|
---|
627 |
|
---|
628 | pAddr->au8[i] = u8; /* big endian */
|
---|
629 | }
|
---|
630 |
|
---|
631 | return true;
|
---|
632 | }
|
---|
633 |
|
---|
634 | RTDECL(int) RTSocketParseInetAddress(const char *pszAddress, unsigned uPort, PRTNETADDR pAddr)
|
---|
635 | {
|
---|
636 | int rc;
|
---|
637 |
|
---|
638 | /*
|
---|
639 | * Validate input.
|
---|
640 | */
|
---|
641 | AssertReturn(uPort > 0, VERR_INVALID_PARAMETER);
|
---|
642 | AssertPtrNullReturn(pszAddress, VERR_INVALID_POINTER);
|
---|
643 |
|
---|
644 | #ifdef RT_OS_WINDOWS
|
---|
645 | /*
|
---|
646 | * Initialize WinSock and check version.
|
---|
647 | */
|
---|
648 | WORD wVersionRequested = MAKEWORD(1, 1);
|
---|
649 | WSADATA wsaData;
|
---|
650 | rc = WSAStartup(wVersionRequested, &wsaData);
|
---|
651 | if (wsaData.wVersion != wVersionRequested)
|
---|
652 | {
|
---|
653 | AssertMsgFailed(("Wrong winsock version\n"));
|
---|
654 | return VERR_NOT_SUPPORTED;
|
---|
655 | }
|
---|
656 | #endif
|
---|
657 |
|
---|
658 | /*
|
---|
659 | * Resolve the address. Pretty crude at the moment, but we have to make
|
---|
660 | * sure to not ask the NT 4 gethostbyname about an IPv4 address as it may
|
---|
661 | * give a wrong answer.
|
---|
662 | */
|
---|
663 | /** @todo this only supports IPv4, and IPv6 support needs to be added.
|
---|
664 | * It probably needs to be converted to getaddrinfo(). */
|
---|
665 | RTNETADDRIPV4 IPv4Quad;
|
---|
666 | if (rtSocketIsIPv4Numerical(pszAddress, &IPv4Quad))
|
---|
667 | {
|
---|
668 | Log3(("rtSocketIsIPv4Numerical: %s -> %#x (%RTnaipv4)\n", pszAddress, IPv4Quad.u, IPv4Quad));
|
---|
669 | RT_ZERO(*pAddr);
|
---|
670 | pAddr->enmType = RTNETADDRTYPE_IPV4;
|
---|
671 | pAddr->uPort = uPort;
|
---|
672 | pAddr->uAddr.IPv4 = IPv4Quad;
|
---|
673 | return VINF_SUCCESS;
|
---|
674 | }
|
---|
675 |
|
---|
676 | struct hostent *pHostEnt;
|
---|
677 | pHostEnt = gethostbyname(pszAddress);
|
---|
678 | if (!pHostEnt)
|
---|
679 | {
|
---|
680 | rc = rtSocketResolverError();
|
---|
681 | AssertMsgFailed(("Could not resolve '%s', rc=%Rrc\n", pszAddress, rc));
|
---|
682 | return rc;
|
---|
683 | }
|
---|
684 |
|
---|
685 | if (pHostEnt->h_addrtype == AF_INET)
|
---|
686 | {
|
---|
687 | RT_ZERO(*pAddr);
|
---|
688 | pAddr->enmType = RTNETADDRTYPE_IPV4;
|
---|
689 | pAddr->uPort = uPort;
|
---|
690 | pAddr->uAddr.IPv4.u = ((struct in_addr *)pHostEnt->h_addr)->s_addr;
|
---|
691 | Log3(("gethostbyname: %s -> %#x (%RTnaipv4)\n", pszAddress, pAddr->uAddr.IPv4.u, pAddr->uAddr.IPv4));
|
---|
692 | }
|
---|
693 | else
|
---|
694 | return VERR_NET_ADDRESS_FAMILY_NOT_SUPPORTED;
|
---|
695 |
|
---|
696 | return VINF_SUCCESS;
|
---|
697 | }
|
---|
698 |
|
---|
699 |
|
---|
700 | /*
|
---|
701 | * New function to allow both ipv4 and ipv6 addresses to be resolved.
|
---|
702 | * Breaks compatibility with windows before 2000.
|
---|
703 | */
|
---|
704 | RTDECL(int) RTSocketQueryAddressStr(const char *pszHost, char *pszResult, size_t *pcbResult, PRTNETADDRTYPE penmAddrType)
|
---|
705 | {
|
---|
706 | AssertPtrReturn(pszHost, VERR_INVALID_POINTER);
|
---|
707 | AssertPtrReturn(pcbResult, VERR_INVALID_POINTER);
|
---|
708 | AssertPtrNullReturn(penmAddrType, VERR_INVALID_POINTER);
|
---|
709 | AssertPtrNullReturn(pszResult, VERR_INVALID_POINTER);
|
---|
710 |
|
---|
711 | #if defined(RT_OS_OS2) || defined(RT_OS_WINDOWS) /** @todo dynamically resolve the APIs not present in NT4! */
|
---|
712 | return VERR_NOT_SUPPORTED;
|
---|
713 |
|
---|
714 | #else
|
---|
715 | int rc;
|
---|
716 | if (*pcbResult < 16)
|
---|
717 | return VERR_NET_ADDRESS_NOT_AVAILABLE;
|
---|
718 |
|
---|
719 | /* Setup the hint. */
|
---|
720 | struct addrinfo grHints;
|
---|
721 | RT_ZERO(grHints);
|
---|
722 | grHints.ai_socktype = 0;
|
---|
723 | grHints.ai_flags = 0;
|
---|
724 | grHints.ai_protocol = 0;
|
---|
725 | grHints.ai_family = AF_UNSPEC;
|
---|
726 | if (penmAddrType)
|
---|
727 | {
|
---|
728 | switch (*penmAddrType)
|
---|
729 | {
|
---|
730 | case RTNETADDRTYPE_INVALID:
|
---|
731 | /*grHints.ai_family = AF_UNSPEC;*/
|
---|
732 | break;
|
---|
733 | case RTNETADDRTYPE_IPV4:
|
---|
734 | grHints.ai_family = AF_INET;
|
---|
735 | break;
|
---|
736 | case RTNETADDRTYPE_IPV6:
|
---|
737 | grHints.ai_family = AF_INET6;
|
---|
738 | break;
|
---|
739 | default:
|
---|
740 | AssertFailedReturn(VERR_INVALID_PARAMETER);
|
---|
741 | }
|
---|
742 | }
|
---|
743 |
|
---|
744 | # ifdef RT_OS_WINDOWS
|
---|
745 | /*
|
---|
746 | * Winsock2 init
|
---|
747 | */
|
---|
748 | /** @todo someone should check if we really need 2, 2 here */
|
---|
749 | WORD wVersionRequested = MAKEWORD(2, 2);
|
---|
750 | WSADATA wsaData;
|
---|
751 | rc = WSAStartup(wVersionRequested, &wsaData);
|
---|
752 | if (wsaData.wVersion != wVersionRequested)
|
---|
753 | {
|
---|
754 | AssertMsgFailed(("Wrong winsock version\n"));
|
---|
755 | return VERR_NOT_SUPPORTED;
|
---|
756 | }
|
---|
757 | # endif
|
---|
758 |
|
---|
759 | /** @todo r=bird: getaddrinfo and freeaddrinfo breaks the additions on NT4. */
|
---|
760 | struct addrinfo *pgrResults = NULL;
|
---|
761 | rc = getaddrinfo(pszHost, "", &grHints, &pgrResults);
|
---|
762 | if (rc != 0)
|
---|
763 | return VERR_NET_ADDRESS_NOT_AVAILABLE;
|
---|
764 |
|
---|
765 | // return data
|
---|
766 | // on multiple matches return only the first one
|
---|
767 |
|
---|
768 | if (!pgrResults)
|
---|
769 | return VERR_NET_ADDRESS_NOT_AVAILABLE;
|
---|
770 |
|
---|
771 | struct addrinfo const *pgrResult = pgrResults->ai_next;
|
---|
772 | if (!pgrResult)
|
---|
773 | {
|
---|
774 | freeaddrinfo(pgrResults);
|
---|
775 | return VERR_NET_ADDRESS_NOT_AVAILABLE;
|
---|
776 | }
|
---|
777 |
|
---|
778 | uint8_t const *pbDummy;
|
---|
779 | RTNETADDRTYPE enmAddrType = RTNETADDRTYPE_INVALID;
|
---|
780 | size_t cchIpAddress;
|
---|
781 | char szIpAddress[48];
|
---|
782 | if (pgrResult->ai_family == AF_INET)
|
---|
783 | {
|
---|
784 | struct sockaddr_in const *pgrSa = (struct sockaddr_in const *)pgrResult->ai_addr;
|
---|
785 | cchIpAddress = RTStrPrintf(szIpAddress, sizeof(szIpAddress),
|
---|
786 | "%RTnaipv4", pgrSa->sin_addr.s_addr);
|
---|
787 | Assert(cchIpAddress >= 7 && cchIpAddress < sizeof(szIpAddress) - 1);
|
---|
788 | enmAddrType = RTNETADDRTYPE_IPV4;
|
---|
789 | rc = VINF_SUCCESS;
|
---|
790 | }
|
---|
791 | else if (pgrResult->ai_family == AF_INET6)
|
---|
792 | {
|
---|
793 | struct sockaddr_in6 const *pgrSa6 = (struct sockaddr_in6 const *)pgrResult->ai_addr;
|
---|
794 | cchIpAddress = RTStrPrintf(szIpAddress, sizeof(szIpAddress),
|
---|
795 | "%RTnaipv6", (PRTNETADDRIPV6)&pgrSa6->sin6_addr);
|
---|
796 | enmAddrType = RTNETADDRTYPE_IPV6;
|
---|
797 | rc = VINF_SUCCESS;
|
---|
798 | }
|
---|
799 | else
|
---|
800 | {
|
---|
801 | rc = VERR_NET_ADDRESS_NOT_AVAILABLE;
|
---|
802 | szIpAddress[0] = '\0';
|
---|
803 | cchIpAddress = 0;
|
---|
804 | }
|
---|
805 | freeaddrinfo(pgrResults);
|
---|
806 |
|
---|
807 | /*
|
---|
808 | * Copy out the result.
|
---|
809 | */
|
---|
810 | size_t const cbResult = *pcbResult;
|
---|
811 | *pcbResult = cchIpAddress + 1;
|
---|
812 | if (cchIpAddress < cbResult)
|
---|
813 | memcpy(pszResult, szIpAddress, cchIpAddress + 1);
|
---|
814 | else
|
---|
815 | {
|
---|
816 | RT_BZERO(pszResult, cbResult);
|
---|
817 | if (RT_SUCCESS(rc))
|
---|
818 | rc = VERR_BUFFER_OVERFLOW;
|
---|
819 | }
|
---|
820 | if (penmAddrType && RT_SUCCESS(rc))
|
---|
821 | *penmAddrType = enmAddrType;
|
---|
822 | return rc;
|
---|
823 | #endif /* !RT_OS_OS2 */
|
---|
824 | }
|
---|
825 |
|
---|
826 |
|
---|
827 | RTDECL(int) RTSocketRead(RTSOCKET hSocket, void *pvBuffer, size_t cbBuffer, size_t *pcbRead)
|
---|
828 | {
|
---|
829 | /*
|
---|
830 | * Validate input.
|
---|
831 | */
|
---|
832 | RTSOCKETINT *pThis = hSocket;
|
---|
833 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
834 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
835 | AssertReturn(cbBuffer > 0, VERR_INVALID_PARAMETER);
|
---|
836 | AssertPtr(pvBuffer);
|
---|
837 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
838 |
|
---|
839 | int rc = rtSocketSwitchBlockingMode(pThis, true /* fBlocking */);
|
---|
840 | if (RT_FAILURE(rc))
|
---|
841 | return rc;
|
---|
842 |
|
---|
843 | /*
|
---|
844 | * Read loop.
|
---|
845 | * If pcbRead is NULL we have to fill the entire buffer!
|
---|
846 | */
|
---|
847 | size_t cbRead = 0;
|
---|
848 | size_t cbToRead = cbBuffer;
|
---|
849 | for (;;)
|
---|
850 | {
|
---|
851 | rtSocketErrorReset();
|
---|
852 | #ifdef RTSOCKET_MAX_READ
|
---|
853 | int cbNow = cbToRead >= RTSOCKET_MAX_READ ? RTSOCKET_MAX_READ : (int)cbToRead;
|
---|
854 | #else
|
---|
855 | size_t cbNow = cbToRead;
|
---|
856 | #endif
|
---|
857 | ssize_t cbBytesRead = recv(pThis->hNative, (char *)pvBuffer + cbRead, cbNow, MSG_NOSIGNAL);
|
---|
858 | if (cbBytesRead <= 0)
|
---|
859 | {
|
---|
860 | rc = rtSocketError();
|
---|
861 | Assert(RT_FAILURE_NP(rc) || cbBytesRead == 0);
|
---|
862 | if (RT_SUCCESS_NP(rc))
|
---|
863 | {
|
---|
864 | if (!pcbRead)
|
---|
865 | rc = VERR_NET_SHUTDOWN;
|
---|
866 | else
|
---|
867 | {
|
---|
868 | *pcbRead = 0;
|
---|
869 | rc = VINF_SUCCESS;
|
---|
870 | }
|
---|
871 | }
|
---|
872 | break;
|
---|
873 | }
|
---|
874 | if (pcbRead)
|
---|
875 | {
|
---|
876 | /* return partial data */
|
---|
877 | *pcbRead = cbBytesRead;
|
---|
878 | break;
|
---|
879 | }
|
---|
880 |
|
---|
881 | /* read more? */
|
---|
882 | cbRead += cbBytesRead;
|
---|
883 | if (cbRead == cbBuffer)
|
---|
884 | break;
|
---|
885 |
|
---|
886 | /* next */
|
---|
887 | cbToRead = cbBuffer - cbRead;
|
---|
888 | }
|
---|
889 |
|
---|
890 | rtSocketUnlock(pThis);
|
---|
891 | return rc;
|
---|
892 | }
|
---|
893 |
|
---|
894 |
|
---|
895 | RTDECL(int) RTSocketReadFrom(RTSOCKET hSocket, void *pvBuffer, size_t cbBuffer, size_t *pcbRead, PRTNETADDR pSrcAddr)
|
---|
896 | {
|
---|
897 | /*
|
---|
898 | * Validate input.
|
---|
899 | */
|
---|
900 | RTSOCKETINT *pThis = hSocket;
|
---|
901 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
902 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
903 | AssertReturn(cbBuffer > 0, VERR_INVALID_PARAMETER);
|
---|
904 | AssertPtr(pvBuffer);
|
---|
905 | AssertPtr(pcbRead);
|
---|
906 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
907 |
|
---|
908 | int rc = rtSocketSwitchBlockingMode(pThis, true /* fBlocking */);
|
---|
909 | if (RT_FAILURE(rc))
|
---|
910 | return rc;
|
---|
911 |
|
---|
912 | /*
|
---|
913 | * Read data.
|
---|
914 | */
|
---|
915 | size_t cbRead = 0;
|
---|
916 | size_t cbToRead = cbBuffer;
|
---|
917 | rtSocketErrorReset();
|
---|
918 | RTSOCKADDRUNION u;
|
---|
919 | #ifdef RTSOCKET_MAX_READ
|
---|
920 | int cbNow = cbToRead >= RTSOCKET_MAX_READ ? RTSOCKET_MAX_READ : (int)cbToRead;
|
---|
921 | int cbAddr = sizeof(u);
|
---|
922 | #else
|
---|
923 | size_t cbNow = cbToRead;
|
---|
924 | socklen_t cbAddr = sizeof(u);
|
---|
925 | #endif
|
---|
926 | ssize_t cbBytesRead = recvfrom(pThis->hNative, (char *)pvBuffer + cbRead, cbNow, MSG_NOSIGNAL, &u.Addr, &cbAddr);
|
---|
927 | if (cbBytesRead <= 0)
|
---|
928 | {
|
---|
929 | rc = rtSocketError();
|
---|
930 | Assert(RT_FAILURE_NP(rc) || cbBytesRead == 0);
|
---|
931 | if (RT_SUCCESS_NP(rc))
|
---|
932 | {
|
---|
933 | *pcbRead = 0;
|
---|
934 | rc = VINF_SUCCESS;
|
---|
935 | }
|
---|
936 | }
|
---|
937 | else
|
---|
938 | {
|
---|
939 | if (pSrcAddr)
|
---|
940 | rc = rtSocketNetAddrFromAddr(&u, cbAddr, pSrcAddr);
|
---|
941 | *pcbRead = cbBytesRead;
|
---|
942 | }
|
---|
943 |
|
---|
944 | rtSocketUnlock(pThis);
|
---|
945 | return rc;
|
---|
946 | }
|
---|
947 |
|
---|
948 |
|
---|
949 | RTDECL(int) RTSocketWrite(RTSOCKET hSocket, const void *pvBuffer, size_t cbBuffer)
|
---|
950 | {
|
---|
951 | /*
|
---|
952 | * Validate input.
|
---|
953 | */
|
---|
954 | RTSOCKETINT *pThis = hSocket;
|
---|
955 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
956 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
957 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
958 |
|
---|
959 | int rc = rtSocketSwitchBlockingMode(pThis, true /* fBlocking */);
|
---|
960 | if (RT_FAILURE(rc))
|
---|
961 | return rc;
|
---|
962 |
|
---|
963 | /*
|
---|
964 | * Try write all at once.
|
---|
965 | */
|
---|
966 | #ifdef RTSOCKET_MAX_WRITE
|
---|
967 | int cbNow = cbBuffer >= RTSOCKET_MAX_WRITE ? RTSOCKET_MAX_WRITE : (int)cbBuffer;
|
---|
968 | #else
|
---|
969 | size_t cbNow = cbBuffer >= SSIZE_MAX ? SSIZE_MAX : cbBuffer;
|
---|
970 | #endif
|
---|
971 | ssize_t cbWritten = send(pThis->hNative, (const char *)pvBuffer, cbNow, MSG_NOSIGNAL);
|
---|
972 | if (RT_LIKELY((size_t)cbWritten == cbBuffer && cbWritten >= 0))
|
---|
973 | rc = VINF_SUCCESS;
|
---|
974 | else if (cbWritten < 0)
|
---|
975 | rc = rtSocketError();
|
---|
976 | else
|
---|
977 | {
|
---|
978 | /*
|
---|
979 | * Unfinished business, write the remainder of the request. Must ignore
|
---|
980 | * VERR_INTERRUPTED here if we've managed to send something.
|
---|
981 | */
|
---|
982 | size_t cbSentSoFar = 0;
|
---|
983 | for (;;)
|
---|
984 | {
|
---|
985 | /* advance */
|
---|
986 | cbBuffer -= (size_t)cbWritten;
|
---|
987 | if (!cbBuffer)
|
---|
988 | break;
|
---|
989 | cbSentSoFar += (size_t)cbWritten;
|
---|
990 | pvBuffer = (char const *)pvBuffer + cbWritten;
|
---|
991 |
|
---|
992 | /* send */
|
---|
993 | #ifdef RTSOCKET_MAX_WRITE
|
---|
994 | cbNow = cbBuffer >= RTSOCKET_MAX_WRITE ? RTSOCKET_MAX_WRITE : (int)cbBuffer;
|
---|
995 | #else
|
---|
996 | cbNow = cbBuffer >= SSIZE_MAX ? SSIZE_MAX : cbBuffer;
|
---|
997 | #endif
|
---|
998 | cbWritten = send(pThis->hNative, (const char *)pvBuffer, cbNow, MSG_NOSIGNAL);
|
---|
999 | if (cbWritten >= 0)
|
---|
1000 | AssertMsg(cbBuffer >= (size_t)cbWritten, ("Wrote more than we requested!!! cbWritten=%zu cbBuffer=%zu rtSocketError()=%d\n",
|
---|
1001 | cbWritten, cbBuffer, rtSocketError()));
|
---|
1002 | else
|
---|
1003 | {
|
---|
1004 | rc = rtSocketError();
|
---|
1005 | if (rc != VERR_INTERNAL_ERROR || cbSentSoFar == 0)
|
---|
1006 | break;
|
---|
1007 | cbWritten = 0;
|
---|
1008 | rc = VINF_SUCCESS;
|
---|
1009 | }
|
---|
1010 | }
|
---|
1011 | }
|
---|
1012 |
|
---|
1013 | rtSocketUnlock(pThis);
|
---|
1014 | return rc;
|
---|
1015 | }
|
---|
1016 |
|
---|
1017 |
|
---|
1018 | RTDECL(int) RTSocketWriteTo(RTSOCKET hSocket, const void *pvBuffer, size_t cbBuffer, PCRTNETADDR pAddr)
|
---|
1019 | {
|
---|
1020 | /*
|
---|
1021 | * Validate input.
|
---|
1022 | */
|
---|
1023 | RTSOCKETINT *pThis = hSocket;
|
---|
1024 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1025 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1026 |
|
---|
1027 | /* no locking since UDP reads may be done concurrently to writes, and
|
---|
1028 | * this is the normal use case of this code. */
|
---|
1029 |
|
---|
1030 | int rc = rtSocketSwitchBlockingMode(pThis, true /* fBlocking */);
|
---|
1031 | if (RT_FAILURE(rc))
|
---|
1032 | return rc;
|
---|
1033 |
|
---|
1034 | /* Figure out destination address. */
|
---|
1035 | struct sockaddr *pSA = NULL;
|
---|
1036 | #ifdef RT_OS_WINDOWS
|
---|
1037 | int cbSA = 0;
|
---|
1038 | #else
|
---|
1039 | socklen_t cbSA = 0;
|
---|
1040 | #endif
|
---|
1041 | RTSOCKADDRUNION u;
|
---|
1042 | if (pAddr)
|
---|
1043 | {
|
---|
1044 | rc = rtSocketAddrFromNetAddr(pAddr, &u, sizeof(u), NULL);
|
---|
1045 | if (RT_FAILURE(rc))
|
---|
1046 | return rc;
|
---|
1047 | pSA = &u.Addr;
|
---|
1048 | cbSA = sizeof(u);
|
---|
1049 | }
|
---|
1050 |
|
---|
1051 | /*
|
---|
1052 | * Must write all at once, otherwise it is a failure.
|
---|
1053 | */
|
---|
1054 | #ifdef RT_OS_WINDOWS
|
---|
1055 | int cbNow = cbBuffer >= RTSOCKET_MAX_WRITE ? RTSOCKET_MAX_WRITE : (int)cbBuffer;
|
---|
1056 | #else
|
---|
1057 | size_t cbNow = cbBuffer >= SSIZE_MAX ? SSIZE_MAX : cbBuffer;
|
---|
1058 | #endif
|
---|
1059 | ssize_t cbWritten = sendto(pThis->hNative, (const char *)pvBuffer, cbNow, MSG_NOSIGNAL, pSA, cbSA);
|
---|
1060 | if (RT_LIKELY((size_t)cbWritten == cbBuffer && cbWritten >= 0))
|
---|
1061 | rc = VINF_SUCCESS;
|
---|
1062 | else if (cbWritten < 0)
|
---|
1063 | rc = rtSocketError();
|
---|
1064 | else
|
---|
1065 | rc = VERR_TOO_MUCH_DATA;
|
---|
1066 |
|
---|
1067 | rtSocketUnlock(pThis);
|
---|
1068 | return rc;
|
---|
1069 | }
|
---|
1070 |
|
---|
1071 |
|
---|
1072 | RTDECL(int) RTSocketSgWrite(RTSOCKET hSocket, PCRTSGBUF pSgBuf)
|
---|
1073 | {
|
---|
1074 | /*
|
---|
1075 | * Validate input.
|
---|
1076 | */
|
---|
1077 | RTSOCKETINT *pThis = hSocket;
|
---|
1078 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1079 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1080 | AssertPtrReturn(pSgBuf, VERR_INVALID_PARAMETER);
|
---|
1081 | AssertReturn(pSgBuf->cSegs > 0, VERR_INVALID_PARAMETER);
|
---|
1082 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
1083 |
|
---|
1084 | int rc = rtSocketSwitchBlockingMode(pThis, true /* fBlocking */);
|
---|
1085 | if (RT_FAILURE(rc))
|
---|
1086 | return rc;
|
---|
1087 |
|
---|
1088 | /*
|
---|
1089 | * Construct message descriptor (translate pSgBuf) and send it.
|
---|
1090 | */
|
---|
1091 | rc = VERR_NO_TMP_MEMORY;
|
---|
1092 | #ifdef RT_OS_WINDOWS
|
---|
1093 | AssertCompileSize(WSABUF, sizeof(RTSGSEG));
|
---|
1094 | AssertCompileMemberSize(WSABUF, buf, RT_SIZEOFMEMB(RTSGSEG, pvSeg));
|
---|
1095 |
|
---|
1096 | LPWSABUF paMsg = (LPWSABUF)RTMemTmpAllocZ(pSgBuf->cSegs * sizeof(WSABUF));
|
---|
1097 | if (paMsg)
|
---|
1098 | {
|
---|
1099 | for (unsigned i = 0; i < pSgBuf->cSegs; i++)
|
---|
1100 | {
|
---|
1101 | paMsg[i].buf = (char *)pSgBuf->paSegs[i].pvSeg;
|
---|
1102 | paMsg[i].len = (u_long)pSgBuf->paSegs[i].cbSeg;
|
---|
1103 | }
|
---|
1104 |
|
---|
1105 | DWORD dwSent;
|
---|
1106 | int hrc = WSASend(pThis->hNative, paMsg, pSgBuf->cSegs, &dwSent,
|
---|
1107 | MSG_NOSIGNAL, NULL, NULL);
|
---|
1108 | if (!hrc)
|
---|
1109 | rc = VINF_SUCCESS;
|
---|
1110 | /** @todo check for incomplete writes */
|
---|
1111 | else
|
---|
1112 | rc = rtSocketError();
|
---|
1113 |
|
---|
1114 | RTMemTmpFree(paMsg);
|
---|
1115 | }
|
---|
1116 |
|
---|
1117 | #else /* !RT_OS_WINDOWS */
|
---|
1118 | AssertCompileSize(struct iovec, sizeof(RTSGSEG));
|
---|
1119 | AssertCompileMemberSize(struct iovec, iov_base, RT_SIZEOFMEMB(RTSGSEG, pvSeg));
|
---|
1120 | AssertCompileMemberSize(struct iovec, iov_len, RT_SIZEOFMEMB(RTSGSEG, cbSeg));
|
---|
1121 |
|
---|
1122 | struct iovec *paMsg = (struct iovec *)RTMemTmpAllocZ(pSgBuf->cSegs * sizeof(struct iovec));
|
---|
1123 | if (paMsg)
|
---|
1124 | {
|
---|
1125 | for (unsigned i = 0; i < pSgBuf->cSegs; i++)
|
---|
1126 | {
|
---|
1127 | paMsg[i].iov_base = pSgBuf->paSegs[i].pvSeg;
|
---|
1128 | paMsg[i].iov_len = pSgBuf->paSegs[i].cbSeg;
|
---|
1129 | }
|
---|
1130 |
|
---|
1131 | struct msghdr msgHdr;
|
---|
1132 | RT_ZERO(msgHdr);
|
---|
1133 | msgHdr.msg_iov = paMsg;
|
---|
1134 | msgHdr.msg_iovlen = pSgBuf->cSegs;
|
---|
1135 | ssize_t cbWritten = sendmsg(pThis->hNative, &msgHdr, MSG_NOSIGNAL);
|
---|
1136 | if (RT_LIKELY(cbWritten >= 0))
|
---|
1137 | rc = VINF_SUCCESS;
|
---|
1138 | /** @todo check for incomplete writes */
|
---|
1139 | else
|
---|
1140 | rc = rtSocketError();
|
---|
1141 |
|
---|
1142 | RTMemTmpFree(paMsg);
|
---|
1143 | }
|
---|
1144 | #endif /* !RT_OS_WINDOWS */
|
---|
1145 |
|
---|
1146 | rtSocketUnlock(pThis);
|
---|
1147 | return rc;
|
---|
1148 | }
|
---|
1149 |
|
---|
1150 |
|
---|
1151 | RTDECL(int) RTSocketSgWriteL(RTSOCKET hSocket, size_t cSegs, ...)
|
---|
1152 | {
|
---|
1153 | va_list va;
|
---|
1154 | va_start(va, cSegs);
|
---|
1155 | int rc = RTSocketSgWriteLV(hSocket, cSegs, va);
|
---|
1156 | va_end(va);
|
---|
1157 | return rc;
|
---|
1158 | }
|
---|
1159 |
|
---|
1160 |
|
---|
1161 | RTDECL(int) RTSocketSgWriteLV(RTSOCKET hSocket, size_t cSegs, va_list va)
|
---|
1162 | {
|
---|
1163 | /*
|
---|
1164 | * Set up a S/G segment array + buffer on the stack and pass it
|
---|
1165 | * on to RTSocketSgWrite.
|
---|
1166 | */
|
---|
1167 | Assert(cSegs <= 16);
|
---|
1168 | PRTSGSEG paSegs = (PRTSGSEG)alloca(cSegs * sizeof(RTSGSEG));
|
---|
1169 | AssertReturn(paSegs, VERR_NO_TMP_MEMORY);
|
---|
1170 | for (size_t i = 0; i < cSegs; i++)
|
---|
1171 | {
|
---|
1172 | paSegs[i].pvSeg = va_arg(va, void *);
|
---|
1173 | paSegs[i].cbSeg = va_arg(va, size_t);
|
---|
1174 | }
|
---|
1175 |
|
---|
1176 | RTSGBUF SgBuf;
|
---|
1177 | RTSgBufInit(&SgBuf, paSegs, cSegs);
|
---|
1178 | return RTSocketSgWrite(hSocket, &SgBuf);
|
---|
1179 | }
|
---|
1180 |
|
---|
1181 |
|
---|
1182 | RTDECL(int) RTSocketReadNB(RTSOCKET hSocket, void *pvBuffer, size_t cbBuffer, size_t *pcbRead)
|
---|
1183 | {
|
---|
1184 | /*
|
---|
1185 | * Validate input.
|
---|
1186 | */
|
---|
1187 | RTSOCKETINT *pThis = hSocket;
|
---|
1188 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1189 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1190 | AssertReturn(cbBuffer > 0, VERR_INVALID_PARAMETER);
|
---|
1191 | AssertPtr(pvBuffer);
|
---|
1192 | AssertPtrReturn(pcbRead, VERR_INVALID_PARAMETER);
|
---|
1193 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
1194 |
|
---|
1195 | int rc = rtSocketSwitchBlockingMode(pThis, false /* fBlocking */);
|
---|
1196 | if (RT_FAILURE(rc))
|
---|
1197 | return rc;
|
---|
1198 |
|
---|
1199 | rtSocketErrorReset();
|
---|
1200 | #ifdef RTSOCKET_MAX_READ
|
---|
1201 | int cbNow = cbBuffer >= RTSOCKET_MAX_WRITE ? RTSOCKET_MAX_WRITE : (int)cbBuffer;
|
---|
1202 | #else
|
---|
1203 | size_t cbNow = cbBuffer;
|
---|
1204 | #endif
|
---|
1205 |
|
---|
1206 | #ifdef RT_OS_WINDOWS
|
---|
1207 | int cbRead = recv(pThis->hNative, (char *)pvBuffer, cbNow, MSG_NOSIGNAL);
|
---|
1208 | if (cbRead >= 0)
|
---|
1209 | {
|
---|
1210 | *pcbRead = cbRead;
|
---|
1211 | rc = VINF_SUCCESS;
|
---|
1212 | }
|
---|
1213 | else
|
---|
1214 | rc = rtSocketError();
|
---|
1215 |
|
---|
1216 | if (rc == VERR_TRY_AGAIN)
|
---|
1217 | rc = VINF_TRY_AGAIN;
|
---|
1218 | #else
|
---|
1219 | ssize_t cbRead = recv(pThis->hNative, pvBuffer, cbNow, MSG_NOSIGNAL);
|
---|
1220 | if (cbRead >= 0)
|
---|
1221 | *pcbRead = cbRead;
|
---|
1222 | else if (errno == EAGAIN)
|
---|
1223 | {
|
---|
1224 | *pcbRead = 0;
|
---|
1225 | rc = VINF_TRY_AGAIN;
|
---|
1226 | }
|
---|
1227 | else
|
---|
1228 | rc = rtSocketError();
|
---|
1229 | #endif
|
---|
1230 |
|
---|
1231 | rtSocketUnlock(pThis);
|
---|
1232 | return rc;
|
---|
1233 | }
|
---|
1234 |
|
---|
1235 |
|
---|
1236 | RTDECL(int) RTSocketWriteNB(RTSOCKET hSocket, const void *pvBuffer, size_t cbBuffer, size_t *pcbWritten)
|
---|
1237 | {
|
---|
1238 | /*
|
---|
1239 | * Validate input.
|
---|
1240 | */
|
---|
1241 | RTSOCKETINT *pThis = hSocket;
|
---|
1242 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1243 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1244 | AssertPtrReturn(pcbWritten, VERR_INVALID_PARAMETER);
|
---|
1245 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
1246 |
|
---|
1247 | int rc = rtSocketSwitchBlockingMode(pThis, false /* fBlocking */);
|
---|
1248 | if (RT_FAILURE(rc))
|
---|
1249 | return rc;
|
---|
1250 |
|
---|
1251 | rtSocketErrorReset();
|
---|
1252 | #ifdef RTSOCKET_MAX_WRITE
|
---|
1253 | int cbNow = cbBuffer >= RTSOCKET_MAX_WRITE ? RTSOCKET_MAX_WRITE : (int)cbBuffer;
|
---|
1254 | #else
|
---|
1255 | size_t cbNow = cbBuffer;
|
---|
1256 | #endif
|
---|
1257 |
|
---|
1258 | #ifdef RT_OS_WINDOWS
|
---|
1259 | int cbWritten = send(pThis->hNative, (const char *)pvBuffer, cbNow, MSG_NOSIGNAL);
|
---|
1260 | if (cbWritten >= 0)
|
---|
1261 | {
|
---|
1262 | *pcbWritten = cbWritten;
|
---|
1263 | rc = VINF_SUCCESS;
|
---|
1264 | }
|
---|
1265 | else
|
---|
1266 | rc = rtSocketError();
|
---|
1267 |
|
---|
1268 | if (rc == VERR_TRY_AGAIN)
|
---|
1269 | rc = VINF_TRY_AGAIN;
|
---|
1270 | #else
|
---|
1271 | ssize_t cbWritten = send(pThis->hNative, pvBuffer, cbBuffer, MSG_NOSIGNAL);
|
---|
1272 | if (cbWritten >= 0)
|
---|
1273 | *pcbWritten = cbWritten;
|
---|
1274 | else if (errno == EAGAIN)
|
---|
1275 | {
|
---|
1276 | *pcbWritten = 0;
|
---|
1277 | rc = VINF_TRY_AGAIN;
|
---|
1278 | }
|
---|
1279 | else
|
---|
1280 | rc = rtSocketError();
|
---|
1281 | #endif
|
---|
1282 |
|
---|
1283 | rtSocketUnlock(pThis);
|
---|
1284 | return rc;
|
---|
1285 | }
|
---|
1286 |
|
---|
1287 |
|
---|
1288 | RTDECL(int) RTSocketSgWriteNB(RTSOCKET hSocket, PCRTSGBUF pSgBuf, size_t *pcbWritten)
|
---|
1289 | {
|
---|
1290 | /*
|
---|
1291 | * Validate input.
|
---|
1292 | */
|
---|
1293 | RTSOCKETINT *pThis = hSocket;
|
---|
1294 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1295 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1296 | AssertPtrReturn(pSgBuf, VERR_INVALID_PARAMETER);
|
---|
1297 | AssertPtrReturn(pcbWritten, VERR_INVALID_PARAMETER);
|
---|
1298 | AssertReturn(pSgBuf->cSegs > 0, VERR_INVALID_PARAMETER);
|
---|
1299 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
1300 |
|
---|
1301 | int rc = rtSocketSwitchBlockingMode(pThis, false /* fBlocking */);
|
---|
1302 | if (RT_FAILURE(rc))
|
---|
1303 | return rc;
|
---|
1304 |
|
---|
1305 | unsigned cSegsToSend = 0;
|
---|
1306 | rc = VERR_NO_TMP_MEMORY;
|
---|
1307 | #ifdef RT_OS_WINDOWS
|
---|
1308 | LPWSABUF paMsg = NULL;
|
---|
1309 |
|
---|
1310 | RTSgBufMapToNative(paMsg, pSgBuf, WSABUF, buf, char *, len, u_long, cSegsToSend);
|
---|
1311 | if (paMsg)
|
---|
1312 | {
|
---|
1313 | DWORD dwSent = 0;
|
---|
1314 | int hrc = WSASend(pThis->hNative, paMsg, cSegsToSend, &dwSent,
|
---|
1315 | MSG_NOSIGNAL, NULL, NULL);
|
---|
1316 | if (!hrc)
|
---|
1317 | rc = VINF_SUCCESS;
|
---|
1318 | else
|
---|
1319 | rc = rtSocketError();
|
---|
1320 |
|
---|
1321 | *pcbWritten = dwSent;
|
---|
1322 |
|
---|
1323 | RTMemTmpFree(paMsg);
|
---|
1324 | }
|
---|
1325 |
|
---|
1326 | #else /* !RT_OS_WINDOWS */
|
---|
1327 | struct iovec *paMsg = NULL;
|
---|
1328 |
|
---|
1329 | RTSgBufMapToNative(paMsg, pSgBuf, struct iovec, iov_base, void *, iov_len, size_t, cSegsToSend);
|
---|
1330 | if (paMsg)
|
---|
1331 | {
|
---|
1332 | struct msghdr msgHdr;
|
---|
1333 | RT_ZERO(msgHdr);
|
---|
1334 | msgHdr.msg_iov = paMsg;
|
---|
1335 | msgHdr.msg_iovlen = cSegsToSend;
|
---|
1336 | ssize_t cbWritten = sendmsg(pThis->hNative, &msgHdr, MSG_NOSIGNAL);
|
---|
1337 | if (RT_LIKELY(cbWritten >= 0))
|
---|
1338 | {
|
---|
1339 | rc = VINF_SUCCESS;
|
---|
1340 | *pcbWritten = cbWritten;
|
---|
1341 | }
|
---|
1342 | else
|
---|
1343 | rc = rtSocketError();
|
---|
1344 |
|
---|
1345 | RTMemTmpFree(paMsg);
|
---|
1346 | }
|
---|
1347 | #endif /* !RT_OS_WINDOWS */
|
---|
1348 |
|
---|
1349 | rtSocketUnlock(pThis);
|
---|
1350 | return rc;
|
---|
1351 | }
|
---|
1352 |
|
---|
1353 |
|
---|
1354 | RTDECL(int) RTSocketSgWriteLNB(RTSOCKET hSocket, size_t cSegs, size_t *pcbWritten, ...)
|
---|
1355 | {
|
---|
1356 | va_list va;
|
---|
1357 | va_start(va, pcbWritten);
|
---|
1358 | int rc = RTSocketSgWriteLVNB(hSocket, cSegs, pcbWritten, va);
|
---|
1359 | va_end(va);
|
---|
1360 | return rc;
|
---|
1361 | }
|
---|
1362 |
|
---|
1363 |
|
---|
1364 | RTDECL(int) RTSocketSgWriteLVNB(RTSOCKET hSocket, size_t cSegs, size_t *pcbWritten, va_list va)
|
---|
1365 | {
|
---|
1366 | /*
|
---|
1367 | * Set up a S/G segment array + buffer on the stack and pass it
|
---|
1368 | * on to RTSocketSgWrite.
|
---|
1369 | */
|
---|
1370 | Assert(cSegs <= 16);
|
---|
1371 | PRTSGSEG paSegs = (PRTSGSEG)alloca(cSegs * sizeof(RTSGSEG));
|
---|
1372 | AssertReturn(paSegs, VERR_NO_TMP_MEMORY);
|
---|
1373 | for (size_t i = 0; i < cSegs; i++)
|
---|
1374 | {
|
---|
1375 | paSegs[i].pvSeg = va_arg(va, void *);
|
---|
1376 | paSegs[i].cbSeg = va_arg(va, size_t);
|
---|
1377 | }
|
---|
1378 |
|
---|
1379 | RTSGBUF SgBuf;
|
---|
1380 | RTSgBufInit(&SgBuf, paSegs, cSegs);
|
---|
1381 | return RTSocketSgWriteNB(hSocket, &SgBuf, pcbWritten);
|
---|
1382 | }
|
---|
1383 |
|
---|
1384 |
|
---|
1385 | RTDECL(int) RTSocketSelectOne(RTSOCKET hSocket, RTMSINTERVAL cMillies)
|
---|
1386 | {
|
---|
1387 | /*
|
---|
1388 | * Validate input.
|
---|
1389 | */
|
---|
1390 | RTSOCKETINT *pThis = hSocket;
|
---|
1391 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1392 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1393 | AssertReturn(RTMemPoolRefCount(pThis) >= (pThis->cUsers ? 2U : 1U), VERR_CALLER_NO_REFERENCE);
|
---|
1394 | int const fdMax = (int)pThis->hNative + 1;
|
---|
1395 | AssertReturn(fdMax - 1 == pThis->hNative, VERR_INTERNAL_ERROR_5);
|
---|
1396 |
|
---|
1397 | /*
|
---|
1398 | * Set up the file descriptor sets and do the select.
|
---|
1399 | */
|
---|
1400 | fd_set fdsetR;
|
---|
1401 | FD_ZERO(&fdsetR);
|
---|
1402 | FD_SET(pThis->hNative, &fdsetR);
|
---|
1403 |
|
---|
1404 | fd_set fdsetE = fdsetR;
|
---|
1405 |
|
---|
1406 | int rc;
|
---|
1407 | if (cMillies == RT_INDEFINITE_WAIT)
|
---|
1408 | rc = select(fdMax, &fdsetR, NULL, &fdsetE, NULL);
|
---|
1409 | else
|
---|
1410 | {
|
---|
1411 | struct timeval timeout;
|
---|
1412 | timeout.tv_sec = cMillies / 1000;
|
---|
1413 | timeout.tv_usec = (cMillies % 1000) * 1000;
|
---|
1414 | rc = select(fdMax, &fdsetR, NULL, &fdsetE, &timeout);
|
---|
1415 | }
|
---|
1416 | if (rc > 0)
|
---|
1417 | rc = VINF_SUCCESS;
|
---|
1418 | else if (rc == 0)
|
---|
1419 | rc = VERR_TIMEOUT;
|
---|
1420 | else
|
---|
1421 | rc = rtSocketError();
|
---|
1422 |
|
---|
1423 | return rc;
|
---|
1424 | }
|
---|
1425 |
|
---|
1426 |
|
---|
1427 | RTDECL(int) RTSocketSelectOneEx(RTSOCKET hSocket, uint32_t fEvents, uint32_t *pfEvents,
|
---|
1428 | RTMSINTERVAL cMillies)
|
---|
1429 | {
|
---|
1430 | /*
|
---|
1431 | * Validate input.
|
---|
1432 | */
|
---|
1433 | RTSOCKETINT *pThis = hSocket;
|
---|
1434 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1435 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1436 | AssertPtrReturn(pfEvents, VERR_INVALID_PARAMETER);
|
---|
1437 | AssertReturn(!(fEvents & ~RTSOCKET_EVT_VALID_MASK), VERR_INVALID_PARAMETER);
|
---|
1438 | AssertReturn(RTMemPoolRefCount(pThis) >= (pThis->cUsers ? 2U : 1U), VERR_CALLER_NO_REFERENCE);
|
---|
1439 | int const fdMax = (int)pThis->hNative + 1;
|
---|
1440 | AssertReturn(fdMax - 1 == pThis->hNative, VERR_INTERNAL_ERROR_5);
|
---|
1441 |
|
---|
1442 | *pfEvents = 0;
|
---|
1443 |
|
---|
1444 | /*
|
---|
1445 | * Set up the file descriptor sets and do the select.
|
---|
1446 | */
|
---|
1447 | fd_set fdsetR;
|
---|
1448 | fd_set fdsetW;
|
---|
1449 | fd_set fdsetE;
|
---|
1450 | FD_ZERO(&fdsetR);
|
---|
1451 | FD_ZERO(&fdsetW);
|
---|
1452 | FD_ZERO(&fdsetE);
|
---|
1453 |
|
---|
1454 | if (fEvents & RTSOCKET_EVT_READ)
|
---|
1455 | FD_SET(pThis->hNative, &fdsetR);
|
---|
1456 | if (fEvents & RTSOCKET_EVT_WRITE)
|
---|
1457 | FD_SET(pThis->hNative, &fdsetW);
|
---|
1458 | if (fEvents & RTSOCKET_EVT_ERROR)
|
---|
1459 | FD_SET(pThis->hNative, &fdsetE);
|
---|
1460 |
|
---|
1461 | int rc;
|
---|
1462 | if (cMillies == RT_INDEFINITE_WAIT)
|
---|
1463 | rc = select(fdMax, &fdsetR, &fdsetW, &fdsetE, NULL);
|
---|
1464 | else
|
---|
1465 | {
|
---|
1466 | struct timeval timeout;
|
---|
1467 | timeout.tv_sec = cMillies / 1000;
|
---|
1468 | timeout.tv_usec = (cMillies % 1000) * 1000;
|
---|
1469 | rc = select(fdMax, &fdsetR, &fdsetW, &fdsetE, &timeout);
|
---|
1470 | }
|
---|
1471 | if (rc > 0)
|
---|
1472 | {
|
---|
1473 | if (FD_ISSET(pThis->hNative, &fdsetR))
|
---|
1474 | *pfEvents |= RTSOCKET_EVT_READ;
|
---|
1475 | if (FD_ISSET(pThis->hNative, &fdsetW))
|
---|
1476 | *pfEvents |= RTSOCKET_EVT_WRITE;
|
---|
1477 | if (FD_ISSET(pThis->hNative, &fdsetE))
|
---|
1478 | *pfEvents |= RTSOCKET_EVT_ERROR;
|
---|
1479 |
|
---|
1480 | rc = VINF_SUCCESS;
|
---|
1481 | }
|
---|
1482 | else if (rc == 0)
|
---|
1483 | rc = VERR_TIMEOUT;
|
---|
1484 | else
|
---|
1485 | rc = rtSocketError();
|
---|
1486 |
|
---|
1487 | return rc;
|
---|
1488 | }
|
---|
1489 |
|
---|
1490 |
|
---|
1491 | RTDECL(int) RTSocketShutdown(RTSOCKET hSocket, bool fRead, bool fWrite)
|
---|
1492 | {
|
---|
1493 | /*
|
---|
1494 | * Validate input, don't lock it because we might want to interrupt a call
|
---|
1495 | * active on a different thread.
|
---|
1496 | */
|
---|
1497 | RTSOCKETINT *pThis = hSocket;
|
---|
1498 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1499 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1500 | AssertReturn(RTMemPoolRefCount(pThis) >= (pThis->cUsers ? 2U : 1U), VERR_CALLER_NO_REFERENCE);
|
---|
1501 | AssertReturn(fRead || fWrite, VERR_INVALID_PARAMETER);
|
---|
1502 |
|
---|
1503 | /*
|
---|
1504 | * Do the job.
|
---|
1505 | */
|
---|
1506 | int rc = VINF_SUCCESS;
|
---|
1507 | int fHow;
|
---|
1508 | if (fRead && fWrite)
|
---|
1509 | fHow = SHUT_RDWR;
|
---|
1510 | else if (fRead)
|
---|
1511 | fHow = SHUT_RD;
|
---|
1512 | else
|
---|
1513 | fHow = SHUT_WR;
|
---|
1514 | if (shutdown(pThis->hNative, fHow) == -1)
|
---|
1515 | rc = rtSocketError();
|
---|
1516 |
|
---|
1517 | return rc;
|
---|
1518 | }
|
---|
1519 |
|
---|
1520 |
|
---|
1521 | RTDECL(int) RTSocketGetLocalAddress(RTSOCKET hSocket, PRTNETADDR pAddr)
|
---|
1522 | {
|
---|
1523 | /*
|
---|
1524 | * Validate input.
|
---|
1525 | */
|
---|
1526 | RTSOCKETINT *pThis = hSocket;
|
---|
1527 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1528 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1529 | AssertReturn(RTMemPoolRefCount(pThis) >= (pThis->cUsers ? 2U : 1U), VERR_CALLER_NO_REFERENCE);
|
---|
1530 |
|
---|
1531 | /*
|
---|
1532 | * Get the address and convert it.
|
---|
1533 | */
|
---|
1534 | int rc;
|
---|
1535 | RTSOCKADDRUNION u;
|
---|
1536 | #ifdef RT_OS_WINDOWS
|
---|
1537 | int cbAddr = sizeof(u);
|
---|
1538 | #else
|
---|
1539 | socklen_t cbAddr = sizeof(u);
|
---|
1540 | #endif
|
---|
1541 | RT_ZERO(u);
|
---|
1542 | if (getsockname(pThis->hNative, &u.Addr, &cbAddr) == 0)
|
---|
1543 | rc = rtSocketNetAddrFromAddr(&u, cbAddr, pAddr);
|
---|
1544 | else
|
---|
1545 | rc = rtSocketError();
|
---|
1546 |
|
---|
1547 | return rc;
|
---|
1548 | }
|
---|
1549 |
|
---|
1550 |
|
---|
1551 | RTDECL(int) RTSocketGetPeerAddress(RTSOCKET hSocket, PRTNETADDR pAddr)
|
---|
1552 | {
|
---|
1553 | /*
|
---|
1554 | * Validate input.
|
---|
1555 | */
|
---|
1556 | RTSOCKETINT *pThis = hSocket;
|
---|
1557 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1558 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1559 | AssertReturn(RTMemPoolRefCount(pThis) >= (pThis->cUsers ? 2U : 1U), VERR_CALLER_NO_REFERENCE);
|
---|
1560 |
|
---|
1561 | /*
|
---|
1562 | * Get the address and convert it.
|
---|
1563 | */
|
---|
1564 | int rc;
|
---|
1565 | RTSOCKADDRUNION u;
|
---|
1566 | #ifdef RT_OS_WINDOWS
|
---|
1567 | int cbAddr = sizeof(u);
|
---|
1568 | #else
|
---|
1569 | socklen_t cbAddr = sizeof(u);
|
---|
1570 | #endif
|
---|
1571 | RT_ZERO(u);
|
---|
1572 | if (getpeername(pThis->hNative, &u.Addr, &cbAddr) == 0)
|
---|
1573 | rc = rtSocketNetAddrFromAddr(&u, cbAddr, pAddr);
|
---|
1574 | else
|
---|
1575 | rc = rtSocketError();
|
---|
1576 |
|
---|
1577 | return rc;
|
---|
1578 | }
|
---|
1579 |
|
---|
1580 |
|
---|
1581 |
|
---|
1582 | /**
|
---|
1583 | * Wrapper around bind.
|
---|
1584 | *
|
---|
1585 | * @returns IPRT status code.
|
---|
1586 | * @param hSocket The socket handle.
|
---|
1587 | * @param pAddr The address to bind to.
|
---|
1588 | */
|
---|
1589 | int rtSocketBind(RTSOCKET hSocket, PCRTNETADDR pAddr)
|
---|
1590 | {
|
---|
1591 | RTSOCKADDRUNION u;
|
---|
1592 | int cbAddr;
|
---|
1593 | int rc = rtSocketAddrFromNetAddr(pAddr, &u, sizeof(u), &cbAddr);
|
---|
1594 | if (RT_SUCCESS(rc))
|
---|
1595 | rc = rtSocketBindRawAddr(hSocket, &u.Addr, cbAddr);
|
---|
1596 | return rc;
|
---|
1597 | }
|
---|
1598 |
|
---|
1599 |
|
---|
1600 | /**
|
---|
1601 | * Very thin wrapper around bind.
|
---|
1602 | *
|
---|
1603 | * @returns IPRT status code.
|
---|
1604 | * @param hSocket The socket handle.
|
---|
1605 | * @param pvAddr The address to bind to (struct sockaddr and
|
---|
1606 | * friends).
|
---|
1607 | * @param cbAddr The size of the address.
|
---|
1608 | */
|
---|
1609 | int rtSocketBindRawAddr(RTSOCKET hSocket, void const *pvAddr, size_t cbAddr)
|
---|
1610 | {
|
---|
1611 | /*
|
---|
1612 | * Validate input.
|
---|
1613 | */
|
---|
1614 | RTSOCKETINT *pThis = hSocket;
|
---|
1615 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1616 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1617 | AssertPtrReturn(pvAddr, VERR_INVALID_POINTER);
|
---|
1618 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
1619 |
|
---|
1620 | int rc;
|
---|
1621 | if (bind(pThis->hNative, (struct sockaddr const *)pvAddr, (int)cbAddr) == 0)
|
---|
1622 | rc = VINF_SUCCESS;
|
---|
1623 | else
|
---|
1624 | rc = rtSocketError();
|
---|
1625 |
|
---|
1626 | rtSocketUnlock(pThis);
|
---|
1627 | return rc;
|
---|
1628 | }
|
---|
1629 |
|
---|
1630 |
|
---|
1631 |
|
---|
1632 | /**
|
---|
1633 | * Wrapper around listen.
|
---|
1634 | *
|
---|
1635 | * @returns IPRT status code.
|
---|
1636 | * @param hSocket The socket handle.
|
---|
1637 | * @param cMaxPending The max number of pending connections.
|
---|
1638 | */
|
---|
1639 | int rtSocketListen(RTSOCKET hSocket, int cMaxPending)
|
---|
1640 | {
|
---|
1641 | /*
|
---|
1642 | * Validate input.
|
---|
1643 | */
|
---|
1644 | RTSOCKETINT *pThis = hSocket;
|
---|
1645 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1646 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1647 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
1648 |
|
---|
1649 | int rc = VINF_SUCCESS;
|
---|
1650 | if (listen(pThis->hNative, cMaxPending) != 0)
|
---|
1651 | rc = rtSocketError();
|
---|
1652 |
|
---|
1653 | rtSocketUnlock(pThis);
|
---|
1654 | return rc;
|
---|
1655 | }
|
---|
1656 |
|
---|
1657 |
|
---|
1658 | /**
|
---|
1659 | * Wrapper around accept.
|
---|
1660 | *
|
---|
1661 | * @returns IPRT status code.
|
---|
1662 | * @param hSocket The socket handle.
|
---|
1663 | * @param phClient Where to return the client socket handle on
|
---|
1664 | * success.
|
---|
1665 | * @param pAddr Where to return the client address.
|
---|
1666 | * @param pcbAddr On input this gives the size buffer size of what
|
---|
1667 | * @a pAddr point to. On return this contains the
|
---|
1668 | * size of what's stored at @a pAddr.
|
---|
1669 | */
|
---|
1670 | int rtSocketAccept(RTSOCKET hSocket, PRTSOCKET phClient, struct sockaddr *pAddr, size_t *pcbAddr)
|
---|
1671 | {
|
---|
1672 | /*
|
---|
1673 | * Validate input.
|
---|
1674 | * Only lock the socket temporarily while we get the native handle, so that
|
---|
1675 | * we can safely shutdown and destroy the socket from a different thread.
|
---|
1676 | */
|
---|
1677 | RTSOCKETINT *pThis = hSocket;
|
---|
1678 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1679 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1680 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
1681 |
|
---|
1682 | /*
|
---|
1683 | * Call accept().
|
---|
1684 | */
|
---|
1685 | rtSocketErrorReset();
|
---|
1686 | int rc = VINF_SUCCESS;
|
---|
1687 | #ifdef RT_OS_WINDOWS
|
---|
1688 | int cbAddr = (int)*pcbAddr;
|
---|
1689 | #else
|
---|
1690 | socklen_t cbAddr = *pcbAddr;
|
---|
1691 | #endif
|
---|
1692 | RTSOCKETNATIVE hNativeClient = accept(pThis->hNative, pAddr, &cbAddr);
|
---|
1693 | if (hNativeClient != NIL_RTSOCKETNATIVE)
|
---|
1694 | {
|
---|
1695 | *pcbAddr = cbAddr;
|
---|
1696 |
|
---|
1697 | /*
|
---|
1698 | * Wrap the client socket.
|
---|
1699 | */
|
---|
1700 | rc = rtSocketCreateForNative(phClient, hNativeClient);
|
---|
1701 | if (RT_FAILURE(rc))
|
---|
1702 | {
|
---|
1703 | #ifdef RT_OS_WINDOWS
|
---|
1704 | closesocket(hNativeClient);
|
---|
1705 | #else
|
---|
1706 | close(hNativeClient);
|
---|
1707 | #endif
|
---|
1708 | }
|
---|
1709 | }
|
---|
1710 | else
|
---|
1711 | rc = rtSocketError();
|
---|
1712 |
|
---|
1713 | rtSocketUnlock(pThis);
|
---|
1714 | return rc;
|
---|
1715 | }
|
---|
1716 |
|
---|
1717 |
|
---|
1718 | /**
|
---|
1719 | * Wrapper around connect.
|
---|
1720 | *
|
---|
1721 | * @returns IPRT status code.
|
---|
1722 | * @param hSocket The socket handle.
|
---|
1723 | * @param pAddr The socket address to connect to.
|
---|
1724 | * @param cMillies Number of milliseconds to wait for the connect attempt to complete.
|
---|
1725 | * Use RT_INDEFINITE_WAIT to wait for ever.
|
---|
1726 | * Use RT_TCPCLIENTCONNECT_DEFAULT_WAIT to wait for the default time
|
---|
1727 | * configured on the running system.
|
---|
1728 | */
|
---|
1729 | int rtSocketConnect(RTSOCKET hSocket, PCRTNETADDR pAddr, RTMSINTERVAL cMillies)
|
---|
1730 | {
|
---|
1731 | /*
|
---|
1732 | * Validate input.
|
---|
1733 | */
|
---|
1734 | RTSOCKETINT *pThis = hSocket;
|
---|
1735 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1736 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1737 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
1738 |
|
---|
1739 | RTSOCKADDRUNION u;
|
---|
1740 | int cbAddr;
|
---|
1741 | int rc = rtSocketAddrFromNetAddr(pAddr, &u, sizeof(u), &cbAddr);
|
---|
1742 | if (RT_SUCCESS(rc))
|
---|
1743 | {
|
---|
1744 | if (cMillies == RT_SOCKETCONNECT_DEFAULT_WAIT)
|
---|
1745 | {
|
---|
1746 | if (connect(pThis->hNative, &u.Addr, cbAddr) != 0)
|
---|
1747 | rc = rtSocketError();
|
---|
1748 | }
|
---|
1749 | else
|
---|
1750 | {
|
---|
1751 | /*
|
---|
1752 | * Switch the socket to nonblocking mode, initiate the connect
|
---|
1753 | * and wait for the socket to become writable or until the timeout
|
---|
1754 | * expires.
|
---|
1755 | */
|
---|
1756 | rc = rtSocketSwitchBlockingMode(pThis, false /* fBlocking */);
|
---|
1757 | if (RT_SUCCESS(rc))
|
---|
1758 | {
|
---|
1759 | if (connect(pThis->hNative, &u.Addr, cbAddr) != 0)
|
---|
1760 | {
|
---|
1761 | rc = rtSocketError();
|
---|
1762 | if (rc == VERR_TRY_AGAIN || rc == VERR_NET_IN_PROGRESS)
|
---|
1763 | {
|
---|
1764 | int rcSock = 0;
|
---|
1765 | fd_set FdSetWriteable;
|
---|
1766 | struct timeval TvTimeout;
|
---|
1767 |
|
---|
1768 | TvTimeout.tv_sec = cMillies / RT_MS_1SEC;
|
---|
1769 | TvTimeout.tv_usec = (cMillies % RT_MS_1SEC) * RT_US_1MS;
|
---|
1770 |
|
---|
1771 | FD_ZERO(&FdSetWriteable);
|
---|
1772 | FD_SET(pThis->hNative, &FdSetWriteable);
|
---|
1773 | do
|
---|
1774 | {
|
---|
1775 | rcSock = select(pThis->hNative + 1, NULL, &FdSetWriteable, NULL,
|
---|
1776 | cMillies == RT_INDEFINITE_WAIT || cMillies >= INT_MAX
|
---|
1777 | ? NULL
|
---|
1778 | : &TvTimeout);
|
---|
1779 | if (rcSock > 0)
|
---|
1780 | {
|
---|
1781 | int iSockError = 0;
|
---|
1782 | socklen_t cbSockOpt = sizeof(iSockError);
|
---|
1783 | rcSock = getsockopt(pThis->hNative, SOL_SOCKET, SO_ERROR, (char *)&iSockError, &cbSockOpt);
|
---|
1784 | if (rcSock == 0)
|
---|
1785 | {
|
---|
1786 | if (iSockError == 0)
|
---|
1787 | rc = VINF_SUCCESS;
|
---|
1788 | else
|
---|
1789 | {
|
---|
1790 | #ifdef RT_OS_WINDOWS
|
---|
1791 | rc = RTErrConvertFromWin32(iSockError);
|
---|
1792 | #else
|
---|
1793 | rc = RTErrConvertFromErrno(iSockError);
|
---|
1794 | #endif
|
---|
1795 | }
|
---|
1796 | }
|
---|
1797 | else
|
---|
1798 | rc = rtSocketError();
|
---|
1799 | }
|
---|
1800 | else if (rcSock == 0)
|
---|
1801 | rc = VERR_TIMEOUT;
|
---|
1802 | else
|
---|
1803 | rc = rtSocketError();
|
---|
1804 | } while (rc == VERR_INTERRUPTED);
|
---|
1805 | }
|
---|
1806 | }
|
---|
1807 |
|
---|
1808 | rtSocketSwitchBlockingMode(pThis, true /* fBlocking */);
|
---|
1809 | }
|
---|
1810 | }
|
---|
1811 | }
|
---|
1812 |
|
---|
1813 | rtSocketUnlock(pThis);
|
---|
1814 | return rc;
|
---|
1815 | }
|
---|
1816 |
|
---|
1817 |
|
---|
1818 | /**
|
---|
1819 | * Wrapper around setsockopt.
|
---|
1820 | *
|
---|
1821 | * @returns IPRT status code.
|
---|
1822 | * @param hSocket The socket handle.
|
---|
1823 | * @param iLevel The protocol level, e.g. IPPORTO_TCP.
|
---|
1824 | * @param iOption The option, e.g. TCP_NODELAY.
|
---|
1825 | * @param pvValue The value buffer.
|
---|
1826 | * @param cbValue The size of the value pointed to by pvValue.
|
---|
1827 | */
|
---|
1828 | int rtSocketSetOpt(RTSOCKET hSocket, int iLevel, int iOption, void const *pvValue, int cbValue)
|
---|
1829 | {
|
---|
1830 | /*
|
---|
1831 | * Validate input.
|
---|
1832 | */
|
---|
1833 | RTSOCKETINT *pThis = hSocket;
|
---|
1834 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1835 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1836 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
1837 |
|
---|
1838 | int rc = VINF_SUCCESS;
|
---|
1839 | if (setsockopt(pThis->hNative, iLevel, iOption, (const char *)pvValue, cbValue) != 0)
|
---|
1840 | rc = rtSocketError();
|
---|
1841 |
|
---|
1842 | rtSocketUnlock(pThis);
|
---|
1843 | return rc;
|
---|
1844 | }
|
---|
1845 |
|
---|
1846 |
|
---|
1847 | /**
|
---|
1848 | * Internal RTPollSetAdd helper that returns the handle that should be added to
|
---|
1849 | * the pollset.
|
---|
1850 | *
|
---|
1851 | * @returns Valid handle on success, INVALID_HANDLE_VALUE on failure.
|
---|
1852 | * @param hSocket The socket handle.
|
---|
1853 | * @param fEvents The events we're polling for.
|
---|
1854 | * @param phNative Where to put the primary handle.
|
---|
1855 | */
|
---|
1856 | int rtSocketPollGetHandle(RTSOCKET hSocket, uint32_t fEvents, PRTHCINTPTR phNative)
|
---|
1857 | {
|
---|
1858 | RTSOCKETINT *pThis = hSocket;
|
---|
1859 | AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
|
---|
1860 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, VERR_INVALID_HANDLE);
|
---|
1861 | #ifdef RT_OS_WINDOWS
|
---|
1862 | AssertReturn(rtSocketTryLock(pThis), VERR_CONCURRENT_ACCESS);
|
---|
1863 |
|
---|
1864 | int rc = VINF_SUCCESS;
|
---|
1865 | if (pThis->hEvent != WSA_INVALID_EVENT)
|
---|
1866 | *phNative = (RTHCINTPTR)pThis->hEvent;
|
---|
1867 | else
|
---|
1868 | {
|
---|
1869 | pThis->hEvent = WSACreateEvent();
|
---|
1870 | *phNative = (RTHCINTPTR)pThis->hEvent;
|
---|
1871 | if (pThis->hEvent == WSA_INVALID_EVENT)
|
---|
1872 | rc = rtSocketError();
|
---|
1873 | }
|
---|
1874 |
|
---|
1875 | rtSocketUnlock(pThis);
|
---|
1876 | return rc;
|
---|
1877 |
|
---|
1878 | #else /* !RT_OS_WINDOWS */
|
---|
1879 | *phNative = (RTHCUINTPTR)pThis->hNative;
|
---|
1880 | return VINF_SUCCESS;
|
---|
1881 | #endif /* !RT_OS_WINDOWS */
|
---|
1882 | }
|
---|
1883 |
|
---|
1884 | #ifdef RT_OS_WINDOWS
|
---|
1885 |
|
---|
1886 | /**
|
---|
1887 | * Undos the harm done by WSAEventSelect.
|
---|
1888 | *
|
---|
1889 | * @returns IPRT status code.
|
---|
1890 | * @param pThis The socket handle.
|
---|
1891 | */
|
---|
1892 | static int rtSocketPollClearEventAndRestoreBlocking(RTSOCKETINT *pThis)
|
---|
1893 | {
|
---|
1894 | int rc = VINF_SUCCESS;
|
---|
1895 | if (pThis->fSubscribedEvts)
|
---|
1896 | {
|
---|
1897 | if (WSAEventSelect(pThis->hNative, WSA_INVALID_EVENT, 0) == 0)
|
---|
1898 | {
|
---|
1899 | pThis->fSubscribedEvts = 0;
|
---|
1900 |
|
---|
1901 | /*
|
---|
1902 | * Switch back to blocking mode if that was the state before the
|
---|
1903 | * operation.
|
---|
1904 | */
|
---|
1905 | if (pThis->fBlocking)
|
---|
1906 | {
|
---|
1907 | u_long fNonBlocking = 0;
|
---|
1908 | int rc2 = ioctlsocket(pThis->hNative, FIONBIO, &fNonBlocking);
|
---|
1909 | if (rc2 != 0)
|
---|
1910 | {
|
---|
1911 | rc = rtSocketError();
|
---|
1912 | AssertMsgFailed(("%Rrc; rc2=%d\n", rc, rc2));
|
---|
1913 | }
|
---|
1914 | }
|
---|
1915 | }
|
---|
1916 | else
|
---|
1917 | {
|
---|
1918 | rc = rtSocketError();
|
---|
1919 | AssertMsgFailed(("%Rrc\n", rc));
|
---|
1920 | }
|
---|
1921 | }
|
---|
1922 | return rc;
|
---|
1923 | }
|
---|
1924 |
|
---|
1925 |
|
---|
1926 | /**
|
---|
1927 | * Updates the mask of events we're subscribing to.
|
---|
1928 | *
|
---|
1929 | * @returns IPRT status code.
|
---|
1930 | * @param pThis The socket handle.
|
---|
1931 | * @param fEvents The events we want to subscribe to.
|
---|
1932 | */
|
---|
1933 | static int rtSocketPollUpdateEvents(RTSOCKETINT *pThis, uint32_t fEvents)
|
---|
1934 | {
|
---|
1935 | LONG fNetworkEvents = 0;
|
---|
1936 | if (fEvents & RTPOLL_EVT_READ)
|
---|
1937 | fNetworkEvents |= FD_READ;
|
---|
1938 | if (fEvents & RTPOLL_EVT_WRITE)
|
---|
1939 | fNetworkEvents |= FD_WRITE;
|
---|
1940 | if (fEvents & RTPOLL_EVT_ERROR)
|
---|
1941 | fNetworkEvents |= FD_CLOSE;
|
---|
1942 | LogFlowFunc(("fNetworkEvents=%#x\n", fNetworkEvents));
|
---|
1943 | if (WSAEventSelect(pThis->hNative, pThis->hEvent, fNetworkEvents) == 0)
|
---|
1944 | {
|
---|
1945 | pThis->fSubscribedEvts = fEvents;
|
---|
1946 | return VINF_SUCCESS;
|
---|
1947 | }
|
---|
1948 |
|
---|
1949 | int rc = rtSocketError();
|
---|
1950 | AssertMsgFailed(("fNetworkEvents=%#x rc=%Rrc\n", fNetworkEvents, rtSocketError()));
|
---|
1951 | return rc;
|
---|
1952 | }
|
---|
1953 |
|
---|
1954 | #endif /* RT_OS_WINDOWS */
|
---|
1955 |
|
---|
1956 |
|
---|
1957 | #if defined(RT_OS_WINDOWS) || defined(RT_OS_OS2)
|
---|
1958 |
|
---|
1959 | /**
|
---|
1960 | * Checks for pending events.
|
---|
1961 | *
|
---|
1962 | * @returns Event mask or 0.
|
---|
1963 | * @param pThis The socket handle.
|
---|
1964 | * @param fEvents The desired events.
|
---|
1965 | */
|
---|
1966 | static uint32_t rtSocketPollCheck(RTSOCKETINT *pThis, uint32_t fEvents)
|
---|
1967 | {
|
---|
1968 | uint32_t fRetEvents = 0;
|
---|
1969 |
|
---|
1970 | LogFlowFunc(("pThis=%#p fEvents=%#x\n", pThis, fEvents));
|
---|
1971 |
|
---|
1972 | # ifdef RT_OS_WINDOWS
|
---|
1973 | /* Make sure WSAEnumNetworkEvents returns what we want. */
|
---|
1974 | int rc = VINF_SUCCESS;
|
---|
1975 | if ((pThis->fSubscribedEvts & fEvents) != fEvents)
|
---|
1976 | rc = rtSocketPollUpdateEvents(pThis, pThis->fSubscribedEvts | fEvents);
|
---|
1977 |
|
---|
1978 | /* Get the event mask, ASSUMES that WSAEnumNetworkEvents doesn't clear stuff. */
|
---|
1979 | WSANETWORKEVENTS NetEvts;
|
---|
1980 | RT_ZERO(NetEvts);
|
---|
1981 | if (WSAEnumNetworkEvents(pThis->hNative, pThis->hEvent, &NetEvts) == 0)
|
---|
1982 | {
|
---|
1983 | if ( (NetEvts.lNetworkEvents & FD_READ)
|
---|
1984 | && (fEvents & RTPOLL_EVT_READ)
|
---|
1985 | && NetEvts.iErrorCode[FD_READ_BIT] == 0)
|
---|
1986 | fRetEvents |= RTPOLL_EVT_READ;
|
---|
1987 |
|
---|
1988 | if ( (NetEvts.lNetworkEvents & FD_WRITE)
|
---|
1989 | && (fEvents & RTPOLL_EVT_WRITE)
|
---|
1990 | && NetEvts.iErrorCode[FD_WRITE_BIT] == 0)
|
---|
1991 | fRetEvents |= RTPOLL_EVT_WRITE;
|
---|
1992 |
|
---|
1993 | if (fEvents & RTPOLL_EVT_ERROR)
|
---|
1994 | {
|
---|
1995 | if (NetEvts.lNetworkEvents & FD_CLOSE)
|
---|
1996 | fRetEvents |= RTPOLL_EVT_ERROR;
|
---|
1997 | else
|
---|
1998 | for (uint32_t i = 0; i < FD_MAX_EVENTS; i++)
|
---|
1999 | if ( (NetEvts.lNetworkEvents & (1L << i))
|
---|
2000 | && NetEvts.iErrorCode[i] != 0)
|
---|
2001 | fRetEvents |= RTPOLL_EVT_ERROR;
|
---|
2002 | }
|
---|
2003 | }
|
---|
2004 | else
|
---|
2005 | rc = rtSocketError();
|
---|
2006 |
|
---|
2007 | /* Fall back on select if we hit an error above. */
|
---|
2008 | if (RT_FAILURE(rc))
|
---|
2009 | {
|
---|
2010 |
|
---|
2011 | }
|
---|
2012 |
|
---|
2013 | #else /* RT_OS_OS2 */
|
---|
2014 | int aFds[4] = { pThis->hNative, pThis->hNative, pThis->hNative, -1 };
|
---|
2015 | int rc = os2_select(aFds, 1, 1, 1, 0);
|
---|
2016 | if (rc > 0)
|
---|
2017 | {
|
---|
2018 | if (aFds[0] == pThis->hNative)
|
---|
2019 | fRetEvents |= RTPOLL_EVT_READ;
|
---|
2020 | if (aFds[1] == pThis->hNative)
|
---|
2021 | fRetEvents |= RTPOLL_EVT_WRITE;
|
---|
2022 | if (aFds[2] == pThis->hNative)
|
---|
2023 | fRetEvents |= RTPOLL_EVT_ERROR;
|
---|
2024 | fRetEvents &= fEvents;
|
---|
2025 | }
|
---|
2026 | #endif /* RT_OS_OS2 */
|
---|
2027 |
|
---|
2028 | LogFlowFunc(("fRetEvents=%#x\n", fRetEvents));
|
---|
2029 | return fRetEvents;
|
---|
2030 | }
|
---|
2031 |
|
---|
2032 |
|
---|
2033 | /**
|
---|
2034 | * Internal RTPoll helper that polls the socket handle and, if @a fNoWait is
|
---|
2035 | * clear, starts whatever actions we've got running during the poll call.
|
---|
2036 | *
|
---|
2037 | * @returns 0 if no pending events, actions initiated if @a fNoWait is clear.
|
---|
2038 | * Event mask (in @a fEvents) and no actions if the handle is ready
|
---|
2039 | * already.
|
---|
2040 | * UINT32_MAX (asserted) if the socket handle is busy in I/O or a
|
---|
2041 | * different poll set.
|
---|
2042 | *
|
---|
2043 | * @param hSocket The socket handle.
|
---|
2044 | * @param hPollSet The poll set handle (for access checks).
|
---|
2045 | * @param fEvents The events we're polling for.
|
---|
2046 | * @param fFinalEntry Set if this is the final entry for this handle
|
---|
2047 | * in this poll set. This can be used for dealing
|
---|
2048 | * with duplicate entries.
|
---|
2049 | * @param fNoWait Set if it's a zero-wait poll call. Clear if
|
---|
2050 | * we'll wait for an event to occur.
|
---|
2051 | *
|
---|
2052 | * @remarks There is a potential race wrt duplicate handles when @a fNoWait is
|
---|
2053 | * @c true, we don't currently care about that oddity...
|
---|
2054 | */
|
---|
2055 | uint32_t rtSocketPollStart(RTSOCKET hSocket, RTPOLLSET hPollSet, uint32_t fEvents, bool fFinalEntry, bool fNoWait)
|
---|
2056 | {
|
---|
2057 | RTSOCKETINT *pThis = hSocket;
|
---|
2058 | AssertPtrReturn(pThis, UINT32_MAX);
|
---|
2059 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, UINT32_MAX);
|
---|
2060 | /** @todo This isn't quite sane. Replace by critsect and open up concurrent
|
---|
2061 | * reads and writes! */
|
---|
2062 | if (rtSocketTryLock(pThis))
|
---|
2063 | pThis->hPollSet = hPollSet;
|
---|
2064 | else
|
---|
2065 | {
|
---|
2066 | AssertReturn(pThis->hPollSet == hPollSet, UINT32_MAX);
|
---|
2067 | ASMAtomicIncU32(&pThis->cUsers);
|
---|
2068 | }
|
---|
2069 |
|
---|
2070 | /* (rtSocketPollCheck will reset the event object). */
|
---|
2071 | # ifdef RT_OS_WINDOWS
|
---|
2072 | uint32_t fRetEvents = pThis->fEventsSaved;
|
---|
2073 | pThis->fEventsSaved = 0; /* Reset */
|
---|
2074 | fRetEvents |= rtSocketPollCheck(pThis, fEvents);
|
---|
2075 |
|
---|
2076 | if ( !fRetEvents
|
---|
2077 | && !fNoWait)
|
---|
2078 | {
|
---|
2079 | pThis->fPollEvts |= fEvents;
|
---|
2080 | if ( fFinalEntry
|
---|
2081 | && pThis->fSubscribedEvts != pThis->fPollEvts)
|
---|
2082 | {
|
---|
2083 | int rc = rtSocketPollUpdateEvents(pThis, pThis->fPollEvts);
|
---|
2084 | if (RT_FAILURE(rc))
|
---|
2085 | {
|
---|
2086 | pThis->fPollEvts = 0;
|
---|
2087 | fRetEvents = UINT32_MAX;
|
---|
2088 | }
|
---|
2089 | }
|
---|
2090 | }
|
---|
2091 | # else
|
---|
2092 | uint32_t fRetEvents = rtSocketPollCheck(pThis, fEvents);
|
---|
2093 | # endif
|
---|
2094 |
|
---|
2095 | if (fRetEvents || fNoWait)
|
---|
2096 | {
|
---|
2097 | if (pThis->cUsers == 1)
|
---|
2098 | {
|
---|
2099 | # ifdef RT_OS_WINDOWS
|
---|
2100 | rtSocketPollClearEventAndRestoreBlocking(pThis);
|
---|
2101 | # endif
|
---|
2102 | pThis->hPollSet = NIL_RTPOLLSET;
|
---|
2103 | }
|
---|
2104 | ASMAtomicDecU32(&pThis->cUsers);
|
---|
2105 | }
|
---|
2106 |
|
---|
2107 | return fRetEvents;
|
---|
2108 | }
|
---|
2109 |
|
---|
2110 |
|
---|
2111 | /**
|
---|
2112 | * Called after a WaitForMultipleObjects returned in order to check for pending
|
---|
2113 | * events and stop whatever actions that rtSocketPollStart() initiated.
|
---|
2114 | *
|
---|
2115 | * @returns Event mask or 0.
|
---|
2116 | *
|
---|
2117 | * @param hSocket The socket handle.
|
---|
2118 | * @param fEvents The events we're polling for.
|
---|
2119 | * @param fFinalEntry Set if this is the final entry for this handle
|
---|
2120 | * in this poll set. This can be used for dealing
|
---|
2121 | * with duplicate entries. Only keep in mind that
|
---|
2122 | * this method is called in reverse order, so the
|
---|
2123 | * first call will have this set (when the entire
|
---|
2124 | * set was processed).
|
---|
2125 | * @param fHarvestEvents Set if we should check for pending events.
|
---|
2126 | */
|
---|
2127 | uint32_t rtSocketPollDone(RTSOCKET hSocket, uint32_t fEvents, bool fFinalEntry, bool fHarvestEvents)
|
---|
2128 | {
|
---|
2129 | RTSOCKETINT *pThis = hSocket;
|
---|
2130 | AssertPtrReturn(pThis, 0);
|
---|
2131 | AssertReturn(pThis->u32Magic == RTSOCKET_MAGIC, 0);
|
---|
2132 | Assert(pThis->cUsers > 0);
|
---|
2133 | Assert(pThis->hPollSet != NIL_RTPOLLSET);
|
---|
2134 |
|
---|
2135 | /* Harvest events and clear the event mask for the next round of polling. */
|
---|
2136 | uint32_t fRetEvents = rtSocketPollCheck(pThis, fEvents);
|
---|
2137 | # ifdef RT_OS_WINDOWS
|
---|
2138 | pThis->fPollEvts = 0;
|
---|
2139 |
|
---|
2140 | /*
|
---|
2141 | * Save the write event if required.
|
---|
2142 | * It is only posted once and might get lost if the another source in the
|
---|
2143 | * pollset with a higher priority has pending events.
|
---|
2144 | */
|
---|
2145 | if ( !fHarvestEvents
|
---|
2146 | && fRetEvents)
|
---|
2147 | {
|
---|
2148 | pThis->fEventsSaved = fRetEvents;
|
---|
2149 | fRetEvents = 0;
|
---|
2150 | }
|
---|
2151 | # endif
|
---|
2152 |
|
---|
2153 | /* Make the socket blocking again and unlock the handle. */
|
---|
2154 | if (pThis->cUsers == 1)
|
---|
2155 | {
|
---|
2156 | # ifdef RT_OS_WINDOWS
|
---|
2157 | rtSocketPollClearEventAndRestoreBlocking(pThis);
|
---|
2158 | # endif
|
---|
2159 | pThis->hPollSet = NIL_RTPOLLSET;
|
---|
2160 | }
|
---|
2161 | ASMAtomicDecU32(&pThis->cUsers);
|
---|
2162 | return fRetEvents;
|
---|
2163 | }
|
---|
2164 |
|
---|
2165 | #endif /* RT_OS_WINDOWS || RT_OS_OS2 */
|
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2166 |
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