1 | #ifndef HEADER_CURL_CONNECT_H
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2 | #define HEADER_CURL_CONNECT_H
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3 | /***************************************************************************
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4 | * _ _ ____ _
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5 | * Project ___| | | | _ \| |
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6 | * / __| | | | |_) | |
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7 | * | (__| |_| | _ <| |___
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8 | * \___|\___/|_| \_\_____|
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9 | *
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10 | * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
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11 | *
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12 | * This software is licensed as described in the file COPYING, which
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13 | * you should have received as part of this distribution. The terms
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14 | * are also available at https://curl.haxx.se/docs/copyright.html.
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15 | *
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16 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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17 | * copies of the Software, and permit persons to whom the Software is
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18 | * furnished to do so, under the terms of the COPYING file.
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19 | *
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20 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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21 | * KIND, either express or implied.
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22 | *
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23 | ***************************************************************************/
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24 | #include "curl_setup.h"
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25 |
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26 | #include "nonblock.h" /* for curlx_nonblock(), formerly Curl_nonblock() */
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27 | #include "sockaddr.h"
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28 |
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29 | CURLcode Curl_is_connected(struct connectdata *conn,
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30 | int sockindex,
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31 | bool *connected);
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32 |
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33 | CURLcode Curl_connecthost(struct connectdata *conn,
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34 | const struct Curl_dns_entry *host);
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35 |
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36 | /* generic function that returns how much time there's left to run, according
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37 | to the timeouts set */
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38 | long Curl_timeleft(struct SessionHandle *data,
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39 | struct timeval *nowp,
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40 | bool duringconnect);
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41 |
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42 | #define DEFAULT_CONNECT_TIMEOUT 300000 /* milliseconds == five minutes */
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43 | #define HAPPY_EYEBALLS_TIMEOUT 200 /* milliseconds to wait between
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44 | IPv4/IPv6 connection attempts */
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45 |
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46 | /*
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47 | * Used to extract socket and connectdata struct for the most recent
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48 | * transfer on the given SessionHandle.
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49 | *
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50 | * The returned socket will be CURL_SOCKET_BAD in case of failure!
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51 | */
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52 | curl_socket_t Curl_getconnectinfo(struct SessionHandle *data,
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53 | struct connectdata **connp);
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54 |
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55 | #ifdef USE_WINSOCK
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56 | /* When you run a program that uses the Windows Sockets API, you may
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57 | experience slow performance when you copy data to a TCP server.
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58 |
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59 | https://support.microsoft.com/kb/823764
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60 |
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61 | Work-around: Make the Socket Send Buffer Size Larger Than the Program Send
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62 | Buffer Size
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63 |
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64 | */
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65 | void Curl_sndbufset(curl_socket_t sockfd);
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66 | #else
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67 | #define Curl_sndbufset(y) Curl_nop_stmt
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68 | #endif
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69 |
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70 | void Curl_updateconninfo(struct connectdata *conn, curl_socket_t sockfd);
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71 | void Curl_persistconninfo(struct connectdata *conn);
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72 | int Curl_closesocket(struct connectdata *conn, curl_socket_t sock);
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73 |
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74 | /*
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75 | * The Curl_sockaddr_ex structure is basically libcurl's external API
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76 | * curl_sockaddr structure with enough space available to directly hold any
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77 | * protocol-specific address structures. The variable declared here will be
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78 | * used to pass / receive data to/from the fopensocket callback if this has
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79 | * been set, before that, it is initialized from parameters.
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80 | */
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81 | struct Curl_sockaddr_ex {
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82 | int family;
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83 | int socktype;
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84 | int protocol;
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85 | unsigned int addrlen;
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86 | union {
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87 | struct sockaddr addr;
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88 | struct Curl_sockaddr_storage buff;
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89 | } _sa_ex_u;
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90 | };
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91 | #define sa_addr _sa_ex_u.addr
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92 |
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93 | /*
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94 | * Create a socket based on info from 'conn' and 'ai'.
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95 | *
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96 | * Fill in 'addr' and 'sockfd' accordingly if OK is returned. If the open
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97 | * socket callback is set, used that!
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98 | *
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99 | */
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100 | CURLcode Curl_socket(struct connectdata *conn,
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101 | const Curl_addrinfo *ai,
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102 | struct Curl_sockaddr_ex *addr,
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103 | curl_socket_t *sockfd);
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104 |
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105 | void Curl_tcpnodelay(struct connectdata *conn, curl_socket_t sockfd);
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106 |
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107 | #ifdef CURLDEBUG
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108 | /*
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109 | * Curl_connclose() sets the bit.close bit to TRUE with an explanation.
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110 | * Nothing else.
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111 | */
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112 | void Curl_conncontrol(struct connectdata *conn,
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113 | bool closeit,
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114 | const char *reason);
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115 | #define connclose(x,y) Curl_conncontrol(x,TRUE, y)
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116 | #define connkeep(x,y) Curl_conncontrol(x, FALSE, y)
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117 | #else /* if !CURLDEBUG */
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118 |
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119 | #define connclose(x,y) (x)->bits.close = TRUE
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120 | #define connkeep(x,y) (x)->bits.close = FALSE
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121 |
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122 | #endif
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123 |
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124 | #endif /* HEADER_CURL_CONNECT_H */
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