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1 /** |
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2 * @file sslconn.h SSL API |
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3 * @ingroup core |
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4 * |
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5 * gaim |
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6 * |
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7 * Gaim is the legal property of its developers, whose names are too numerous |
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8 * to list here. Please refer to the COPYRIGHT file distributed with this |
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9 * source distribution. |
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10 * |
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11 * This program is free software; you can redistribute it and/or modify |
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12 * it under the terms of the GNU General Public License as published by |
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13 * the Free Software Foundation; either version 2 of the License, or |
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14 * (at your option) any later version. |
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15 * |
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16 * This program is distributed in the hope that it will be useful, |
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17 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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19 * GNU General Public License for more details. |
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20 * |
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21 * You should have received a copy of the GNU General Public License |
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22 * along with this program; if not, write to the Free Software |
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23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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24 */ |
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25 #ifndef _GAIM_SSLCONN_H_ |
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26 #define _GAIM_SSLCONN_H_ |
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27 |
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28 #include "proxy.h" |
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29 |
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30 #define GAIM_SSL_DEFAULT_PORT 443 |
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31 |
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32 typedef enum |
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33 { |
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34 GAIM_SSL_HANDSHAKE_FAILED = 1, |
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35 GAIM_SSL_CONNECT_FAILED = 2 |
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36 } GaimSslErrorType; |
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37 |
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38 typedef struct _GaimSslConnection GaimSslConnection; |
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39 |
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40 typedef void (*GaimSslInputFunction)(gpointer, GaimSslConnection *, |
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41 GaimInputCondition); |
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42 typedef void (*GaimSslErrorFunction)(GaimSslConnection *, GaimSslErrorType, |
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43 gpointer); |
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44 |
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45 struct _GaimSslConnection |
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46 { |
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47 char *host; |
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48 int port; |
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49 void *connect_cb_data; |
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50 GaimSslInputFunction connect_cb; |
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51 GaimSslErrorFunction error_cb; |
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52 void *recv_cb_data; |
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53 GaimSslInputFunction recv_cb; |
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54 |
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55 int fd; |
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56 int inpa; |
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57 GaimProxyConnectData *connect_data; |
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58 |
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59 void *private_data; |
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60 }; |
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61 |
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62 /** |
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63 * SSL implementation operations structure. |
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64 * |
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65 * Every SSL implementation must provide all of these and register it. |
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66 */ |
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67 typedef struct |
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68 { |
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69 gboolean (*init)(void); |
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70 void (*uninit)(void); |
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71 void (*connectfunc)(GaimSslConnection *gsc); |
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72 void (*close)(GaimSslConnection *gsc); |
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73 size_t (*read)(GaimSslConnection *gsc, void *data, size_t len); |
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74 size_t (*write)(GaimSslConnection *gsc, const void *data, size_t len); |
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75 |
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76 } GaimSslOps; |
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77 |
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78 #ifdef __cplusplus |
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79 extern "C" { |
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80 #endif |
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81 |
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82 /**************************************************************************/ |
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83 /** @name SSL API */ |
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84 /**************************************************************************/ |
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85 /*@{*/ |
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86 |
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87 /** |
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88 * Returns whether or not SSL is currently supported. |
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89 * |
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90 * @return TRUE if SSL is supported, or FALSE otherwise. |
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91 */ |
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92 gboolean gaim_ssl_is_supported(void); |
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93 |
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94 /** |
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95 * Makes a SSL connection to the specified host and port. The caller |
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96 * should keep track of the returned value and use it to cancel the |
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97 * connection, if needed. |
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98 * |
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99 * @param account The account making the connection. |
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100 * @param host The destination host. |
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101 * @param port The destination port. |
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102 * @param func The SSL input handler function. |
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103 * @param error_func The SSL error handler function. This function |
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104 * should NOT call gaim_ssl_close(). In the event |
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105 * of an error the GaimSslConnection will be |
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106 * destroyed for you. |
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107 * @param data User-defined data. |
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108 * |
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109 * @return The SSL connection handle. |
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110 */ |
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111 GaimSslConnection *gaim_ssl_connect(GaimAccount *account, const char *host, |
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112 int port, GaimSslInputFunction func, |
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113 GaimSslErrorFunction error_func, |
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114 void *data); |
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115 |
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116 /** |
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117 * Makes a SSL connection using an already open file descriptor. |
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118 * |
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119 * @param account The account making the connection. |
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120 * @param fd The file descriptor. |
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121 * @param func The SSL input handler function. |
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122 * @param error_func The SSL error handler function. |
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123 * @param data User-defined data. |
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124 * |
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125 * @return The SSL connection handle. |
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126 */ |
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127 GaimSslConnection *gaim_ssl_connect_fd(GaimAccount *account, int fd, |
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128 GaimSslInputFunction func, |
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129 GaimSslErrorFunction error_func, |
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130 void *data); |
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131 |
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132 /** |
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133 * Adds an input watcher for the specified SSL connection. |
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134 * |
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135 * @param gsc The SSL connection handle. |
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136 * @param func The callback function. |
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137 * @param data User-defined data. |
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138 */ |
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139 void gaim_ssl_input_add(GaimSslConnection *gsc, GaimSslInputFunction func, |
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140 void *data); |
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141 |
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142 /** |
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143 * Closes a SSL connection. |
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144 * |
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145 * @param gsc The SSL connection to close. |
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146 */ |
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147 void gaim_ssl_close(GaimSslConnection *gsc); |
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148 |
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149 /** |
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150 * Reads data from an SSL connection. |
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151 * |
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152 * @param gsc The SSL connection handle. |
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153 * @param buffer The destination buffer. |
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154 * @param len The maximum number of bytes to read. |
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155 * |
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156 * @return The number of bytes read. |
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157 */ |
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158 size_t gaim_ssl_read(GaimSslConnection *gsc, void *buffer, size_t len); |
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159 |
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160 /** |
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161 * Writes data to an SSL connection. |
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162 * |
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163 * @param gsc The SSL connection handle. |
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164 * @param buffer The buffer to write. |
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165 * @param len The length of the data to write. |
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166 * |
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167 * @return The number of bytes written. |
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168 */ |
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169 size_t gaim_ssl_write(GaimSslConnection *gsc, const void *buffer, size_t len); |
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170 |
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171 /*@}*/ |
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172 |
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173 /**************************************************************************/ |
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174 /** @name Subsystem API */ |
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175 /**************************************************************************/ |
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176 /*@{*/ |
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177 |
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178 /** |
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179 * Sets the current SSL operations structure. |
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180 * |
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181 * @param ops The SSL operations structure to assign. |
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182 */ |
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183 void gaim_ssl_set_ops(GaimSslOps *ops); |
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184 |
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185 /** |
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186 * Returns the current SSL operations structure. |
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187 * |
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188 * @return The SSL operations structure. |
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189 */ |
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190 GaimSslOps *gaim_ssl_get_ops(void); |
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191 |
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192 /** |
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193 * Initializes the SSL subsystem. |
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194 */ |
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195 void gaim_ssl_init(void); |
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196 |
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197 /** |
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198 * Uninitializes the SSL subsystem. |
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199 */ |
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200 void gaim_ssl_uninit(void); |
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201 |
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202 /*@}*/ |
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203 |
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204 #ifdef __cplusplus |
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205 } |
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206 #endif |
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207 |
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208 #endif /* _GAIM_SSLCONN_H_ */ |