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annotate th_network.h @ 117:bfae4758fa6f

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More work on network module.
author Matti Hamalainen <ccr@tnsp.org>
date Sat, 21 Jun 2014 23:31:54 +0300
parents bc540c5bfaf9
children 8c39e8e90dbd
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102
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1 /*
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2 * Simple TCP network connection handling
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3 * Programmed and designed by Matti 'ccr' Hamalainen
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4 * (C) Copyright 2013-2014 Tecnic Software productions (TNSP)
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5 *
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6 * Please read file 'COPYING' for information on license and distribution.
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7 */
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8 #ifndef TH_NETWORK_H
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9 #define TH_NETWORK_H
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10
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11 #include <stdio.h>
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12 #include <unistd.h>
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13 #include "th_types.h"
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14 #include "th_util.h"
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15
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16
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17 #ifdef __WIN32
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18 #define __OBJC_BOOL // A nasty hack
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19 #include <windows.h>
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20 #include <winsock.h>
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21 typedef uint16_t in_port_t;
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22 typedef uint32_t in_addr_t;
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23 #else
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24 #include <sys/select.h>
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25 #include <sys/socket.h>
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26 #ifdef HAVE_NETINET_IN_H
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27 #include <netinet/in.h>
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28 #endif
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29 #include <arpa/inet.h>
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30 #include <netdb.h>
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31 #endif
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32
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33
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34 #ifdef __cplusplus
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35 extern "C" {
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36 #endif
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37
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38 /* Global defines
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39 */
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40 #define TH_CONNBUF_SIZE (64 * 1024)
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41 #define TH_DELAY_USEC (15 * 1000)
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42 #define TH_DUMP_BYTES 16
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43
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44
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45 enum
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46 {
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47 TH_CONN_UNINIT = 0,
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48 TH_CONN_PROXY_NEG,
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49 TH_CONN_OPEN,
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50 TH_CONN_CLOSED,
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51
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52 TH_CONN_ERROR,
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53 TH_CONN_DATA_AVAIL,
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54 TH_CONN_NO_DATA,
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55 };
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56
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57 enum
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58 {
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59 TH_PROXY_NONE = 0,
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60 TH_PROXY_SOCKS4,
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61 TH_PROXY_SOCKS4A,
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62 TH_PROXY_SOCKS5,
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63
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64 TH_PROXY_LAST
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65 };
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66
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67 enum
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68 {
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69 TH_PROXY_AUTH_NONE,
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70 TH_PROXY_AUTH_USER,
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71 };
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72
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73 enum
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74 {
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75 TH_PROXY_CMD_CONNECT = 1,
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76 TH_PROXY_CMD_BIND = 2,
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77 TH_PROXY_CMD_ASSOC_UDP = 3,
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78 };
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79
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80
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81 typedef struct _th_conn_t
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82 {
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83 // Proxy settings and data
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84 struct
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85 {
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86 char *host;
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87 struct hostent *hst;
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88 int type, auth_type;
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89 int port;
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90 struct in_addr addr;
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91 char *userid, *passwd;
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92 } proxy;
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93
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94 // Target host data
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95 char *host;
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96 struct hostent *hst;
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97 int port;
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98
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99 // Socket data
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100 int socket;
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101 struct in_addr addr;
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102 fd_set sockfds;
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103
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104 // Error handling and status message functors
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105 void (*errfunc)(struct _th_conn_t *conn, int err, const char *msg);
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106 void (*msgfunc)(struct _th_conn_t *conn, int loglevel, const char *msg);
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107
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108 int err;
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109 int status;
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110
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111 // Data buffer
103
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112 char *buf, *ptr, *in_ptr;
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113 ssize_t bufsize, got_bytes, total_bytes;
102
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114
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115 void *node;
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116 } th_conn_t;
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117
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118
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119 int th_network_init();
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120 void th_network_close(void);
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121
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122 struct hostent *th_resolve_host(th_conn_t *conn, const char *name);
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123 th_conn_t * th_conn_new(
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124 void (*errfunc)(th_conn_t *conn, int err, const char *msg),
103
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125 void (*msgfunc)(th_conn_t *conn, int loglevel, const char *msg),
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126 ssize_t bufsize);
102
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127
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128 void th_conn_err(th_conn_t *conn, int err, const char *fmt, ...);
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129 void th_conn_msg(th_conn_t *conn, int loglevel, const char *fmt, ...);
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130
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131 int th_conn_set_proxy(th_conn_t *conn, int type, int port, const char *host, int auth_type);
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132 int th_conn_set_proxy_auth_user(th_conn_t *conn, const char *userid, const char *passwd);
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133 int th_conn_open(th_conn_t *conn, const int port, const char *host);
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134 int th_conn_close(th_conn_t *);
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135 void th_conn_free(th_conn_t *);
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136 void th_conn_reset(th_conn_t *);
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137
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138 int th_conn_pull(th_conn_t *);
116
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139 int th_conn_send_buf(th_conn_t *, const void *buf, const size_t len);
117
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140 int th_conn_send_growbuf(th_conn_t *, th_growbuf_t *buf);
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141 BOOL th_conn_check(th_conn_t *);
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142
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143
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Matti Hamalainen <ccr@tnsp.org>
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144 BOOL th_conn_buf_check(th_conn_t *conn, size_t n);
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145 BOOL th_conn_buf_skip(th_conn_t *conn, size_t n);
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Matti Hamalainen <ccr@tnsp.org>
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146 int th_conn_buf_strncmp(th_conn_t *conn, const char *str, const size_t n);
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Matti Hamalainen <ccr@tnsp.org>
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147 int th_conn_buf_strcmp(th_conn_t *conn, const char *str);
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Matti Hamalainen <ccr@tnsp.org>
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148 char * th_conn_buf_strstr(th_conn_t *conn, const char *str);
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149
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150 void th_conn_dump_buffer(FILE *f, th_conn_t *conn);
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151
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152
6ca407bfbeaf New TCP network module, rather simple and only useful for client applications now.
Matti Hamalainen <ccr@tnsp.org>
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153 #ifdef __cplusplus
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154 }
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155 #endif
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Matti Hamalainen <ccr@tnsp.org>
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156 #endif /* TH_NETWORK_H */