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1 /** |
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2 * @file directconn.c MSN direct connection functions |
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3 * |
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4 * gaim |
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5 * |
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6 * Gaim is the legal property of its developers, whose names are too numerous |
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7 * to list here. Please refer to the COPYRIGHT file distributed with this |
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8 * source distribution. |
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9 * |
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10 * This program is free software; you can redistribute it and/or modify |
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11 * it under the terms of the GNU General Public License as published by |
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12 * the Free Software Foundation; either version 2 of the License, or |
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13 * (at your option) any later version. |
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14 * |
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15 * This program is distributed in the hope that it will be useful, |
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16 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 * GNU General Public License for more details. |
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19 * |
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20 * You should have received a copy of the GNU General Public License |
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21 * along with this program; if not, write to the Free Software |
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22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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23 */ |
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24 #include "msn.h" |
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25 #include "directconn.h" |
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26 |
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27 #include "slp.h" |
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28 #include "slpmsg.h" |
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29 |
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30 /************************************************************************** |
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31 * Directconn Specific |
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32 **************************************************************************/ |
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33 |
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34 void |
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35 msn_directconn_send_handshake(MsnDirectConn *directconn) |
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36 { |
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37 MsnSlpLink *slplink; |
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38 MsnSlpMessage *slpmsg; |
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39 |
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40 g_return_if_fail(directconn != NULL); |
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41 |
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42 slplink = directconn->slplink; |
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43 |
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44 slpmsg = msn_slpmsg_new(slplink); |
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45 slpmsg->flags = 0x100; |
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46 |
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47 if (directconn->nonce != NULL) |
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48 { |
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49 guint32 t1; |
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50 guint16 t2; |
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51 guint16 t3; |
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52 guint16 t4; |
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53 guint64 t5; |
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54 |
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55 sscanf (directconn->nonce, "%08X-%04hX-%04hX-%04hX-%012" G_GINT64_MODIFIER "X", &t1, &t2, &t3, &t4, &t5); |
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56 |
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57 t1 = GUINT32_TO_LE(t1); |
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58 t2 = GUINT16_TO_LE(t2); |
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59 t3 = GUINT16_TO_LE(t3); |
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60 t4 = GUINT16_TO_BE(t4); |
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61 t5 = GUINT64_TO_BE(t5); |
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62 |
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63 slpmsg->ack_id = t1; |
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64 slpmsg->ack_sub_id = t2 | (t3 << 16); |
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65 slpmsg->ack_size = t4 | t5; |
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66 } |
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67 |
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68 g_free(directconn->nonce); |
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69 |
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70 msn_slplink_send_slpmsg(slplink, slpmsg); |
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71 |
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72 directconn->acked =TRUE; |
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73 } |
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74 |
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75 /************************************************************************** |
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76 * Connection Functions |
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77 **************************************************************************/ |
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78 |
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79 #if 0 |
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80 static int |
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81 create_listener(int port) |
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82 { |
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83 int fd; |
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84 const int on = 1; |
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85 |
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86 #if 0 |
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87 struct addrinfo hints; |
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88 struct addrinfo *c, *res; |
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89 char port_str[5]; |
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90 |
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91 snprintf(port_str, sizeof(port_str), "%d", port); |
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92 |
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93 memset(&hints, 0, sizeof(hints)); |
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94 |
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95 hints.ai_flags = AI_PASSIVE; |
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96 hints.ai_family = AF_UNSPEC; |
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97 hints.ai_socktype = SOCK_STREAM; |
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98 |
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99 if (getaddrinfo(NULL, port_str, &hints, &res) != 0) |
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100 { |
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101 gaim_debug_error("msn", "Could not get address info: %s.\n", |
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102 port_str); |
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103 return -1; |
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104 } |
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105 |
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106 for (c = res; c != NULL; c = c->ai_next) |
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107 { |
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108 fd = socket(c->ai_family, c->ai_socktype, c->ai_protocol); |
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109 |
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110 if (fd < 0) |
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111 continue; |
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112 |
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113 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)); |
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114 |
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115 if (bind(fd, c->ai_addr, c->ai_addrlen) == 0) |
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116 break; |
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117 |
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118 close(fd); |
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119 } |
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120 |
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121 if (c == NULL) |
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122 { |
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123 gaim_debug_error("msn", "Could not find socket: %s.\n", port_str); |
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124 return -1; |
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125 } |
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126 |
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127 freeaddrinfo(res); |
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128 #else |
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129 struct sockaddr_in sockin; |
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130 |
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131 fd = socket(AF_INET, SOCK_STREAM, 0); |
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132 |
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133 if (fd < 0) |
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134 return -1; |
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135 |
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136 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) != 0) |
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137 { |
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138 close(fd); |
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139 return -1; |
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140 } |
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141 |
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142 memset(&sockin, 0, sizeof(struct sockaddr_in)); |
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143 sockin.sin_family = AF_INET; |
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144 sockin.sin_port = htons(port); |
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145 |
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146 if (bind(fd, (struct sockaddr *)&sockin, sizeof(struct sockaddr_in)) != 0) |
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147 { |
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148 close(fd); |
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149 return -1; |
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150 } |
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151 #endif |
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152 |
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153 if (listen (fd, 4) != 0) |
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154 { |
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155 close (fd); |
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156 return -1; |
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157 } |
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158 |
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159 fcntl(fd, F_SETFL, O_NONBLOCK); |
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160 |
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161 return fd; |
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162 } |
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163 #endif |
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164 |
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165 static size_t |
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166 msn_directconn_write(MsnDirectConn *directconn, |
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167 const char *data, size_t len) |
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168 { |
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169 char *buffer, *tmp; |
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170 size_t buf_size; |
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171 size_t ret; |
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172 guint32 sent_len; |
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173 |
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174 g_return_val_if_fail(directconn != NULL, 0); |
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175 |
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176 buf_size = len + 4; |
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177 buffer = tmp = g_malloc(buf_size); |
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178 |
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179 sent_len = GUINT32_TO_LE(len); |
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180 |
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181 memcpy(tmp, &sent_len, 4); |
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182 tmp += 4; |
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183 memcpy(tmp, data, len); |
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184 tmp += len; |
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185 |
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186 ret = write(directconn->fd, buffer, buf_size); |
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187 |
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188 #ifdef DEBUG_DC |
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189 char *str; |
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190 str = g_strdup_printf("%s/msntest/w%.4d.bin", g_get_home_dir(), directconn->c); |
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191 |
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192 FILE *tf = g_fopen(str, "w"); |
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193 fwrite(buffer, 1, buf_size, tf); |
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194 fclose(tf); |
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195 |
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196 g_free(str); |
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197 #endif |
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198 |
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199 g_free(buffer); |
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200 |
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201 #if 0 |
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202 /* Let's write the length of the data. */ |
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203 ret = write(directconn->fd, &len, sizeof(len)); |
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204 |
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205 /* Let's write the data. */ |
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206 ret = write(directconn->fd, data, len); |
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207 |
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208 char *str; |
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209 str = g_strdup_printf("/home/revo/msntest/w%.4d.bin", directconn->c); |
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210 |
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211 FILE *tf = g_fopen(str, "w"); |
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212 fwrite(&len, 1, sizeof(len), tf); |
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213 fwrite(data, 1, len, tf); |
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214 fclose(tf); |
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215 |
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216 g_free(str); |
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217 #endif |
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218 |
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219 directconn->c++; |
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220 |
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221 return ret; |
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222 } |
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223 |
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224 #if 0 |
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225 void |
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226 msn_directconn_parse_nonce(MsnDirectConn *directconn, const char *nonce) |
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227 { |
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228 guint32 t1; |
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229 guint16 t2; |
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230 guint16 t3; |
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231 guint16 t4; |
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232 guint64 t5; |
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233 |
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234 g_return_if_fail(directconn != NULL); |
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235 g_return_if_fail(nonce != NULL); |
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236 |
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237 sscanf (nonce, "%08X-%04hX-%04hX-%04hX-%012llX", &t1, &t2, &t3, &t4, &t5); |
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238 |
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239 t1 = GUINT32_TO_LE(t1); |
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240 t2 = GUINT16_TO_LE(t2); |
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241 t3 = GUINT16_TO_LE(t3); |
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242 t4 = GUINT16_TO_BE(t4); |
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243 t5 = GUINT64_TO_BE(t5); |
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244 |
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245 directconn->slpheader = g_new0(MsnSlpHeader, 1); |
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246 |
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247 directconn->slpheader->ack_id = t1; |
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248 directconn->slpheader->ack_sub_id = t2 | (t3 << 16); |
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249 directconn->slpheader->ack_size = t4 | t5; |
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250 } |
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251 #endif |
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252 |
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253 void |
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254 msn_directconn_send_msg(MsnDirectConn *directconn, MsnMessage *msg) |
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255 { |
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256 char *body; |
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257 size_t body_len; |
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258 |
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259 body = msn_message_gen_slp_body(msg, &body_len); |
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260 |
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261 msn_directconn_write(directconn, body, body_len); |
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262 } |
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263 |
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264 static void |
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265 msn_directconn_process_msg(MsnDirectConn *directconn, MsnMessage *msg) |
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266 { |
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267 gaim_debug_info("msn", "directconn: process_msg\n"); |
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268 |
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269 msn_slplink_process_msg(directconn->slplink, msg); |
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270 } |
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271 |
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272 static void |
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273 read_cb(gpointer data, gint source, GaimInputCondition cond) |
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274 { |
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275 MsnDirectConn* directconn; |
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276 char *body; |
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277 size_t len, body_len; |
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278 |
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279 gaim_debug_info("msn", "read_cb: %d, %d\n", source, cond); |
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280 |
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281 directconn = data; |
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282 |
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283 /* Let's read the length of the data. */ |
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284 len = read(directconn->fd, &body_len, sizeof(body_len)); |
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285 |
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286 if (len <= 0) |
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287 { |
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288 /* ERROR */ |
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289 gaim_debug_error("msn", "error reading\n"); |
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290 |
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291 msn_directconn_destroy(directconn); |
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292 |
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293 return; |
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294 } |
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295 |
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296 body_len = GUINT32_FROM_LE(body_len); |
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297 |
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298 gaim_debug_info("msn", "body_len=%d\n", body_len); |
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299 |
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300 if (body_len <= 0) |
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301 { |
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302 /* ERROR */ |
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303 gaim_debug_error("msn", "error reading\n"); |
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304 |
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305 msn_directconn_destroy(directconn); |
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306 |
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307 return; |
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308 } |
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309 |
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310 body = g_try_malloc(body_len); |
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311 |
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312 if (body != NULL) |
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313 { |
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314 /* Let's read the data. */ |
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315 len = read(directconn->fd, body, body_len); |
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316 |
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317 gaim_debug_info("msn", "len=%d\n", len); |
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318 } |
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319 else |
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320 { |
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321 gaim_debug_error("msn", "Failed to allocate memory for read\n"); |
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322 len = 0; |
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323 } |
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324 |
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325 if (len > 0) |
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326 { |
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327 MsnMessage *msg; |
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328 |
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329 #ifdef DEBUG_DC |
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330 str = g_strdup_printf("/home/revo/msntest/r%.4d.bin", directconn->c); |
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331 |
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332 FILE *tf = g_fopen(str, "w"); |
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333 fwrite(body, 1, len, tf); |
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334 fclose(tf); |
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335 |
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336 g_free(str); |
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337 #endif |
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338 |
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339 directconn->c++; |
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340 |
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341 msg = msn_message_new_msnslp(); |
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342 msn_message_parse_slp_body(msg, body, body_len); |
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343 |
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344 msn_directconn_process_msg(directconn, msg); |
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345 } |
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346 else |
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347 { |
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348 /* ERROR */ |
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349 gaim_debug_error("msn", "error reading\n"); |
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350 |
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351 msn_directconn_destroy(directconn); |
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352 } |
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353 } |
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354 |
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355 static void |
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356 connect_cb(gpointer data, gint source, const gchar *error_message) |
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357 { |
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358 MsnDirectConn* directconn; |
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359 int fd; |
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360 |
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361 gaim_debug_misc("msn", "directconn: connect_cb: %d\n", source); |
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362 |
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363 directconn = data; |
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364 directconn->connect_data = NULL; |
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365 |
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366 if (TRUE) |
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367 { |
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368 fd = source; |
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369 } |
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370 else |
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371 { |
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372 struct sockaddr_in client_addr; |
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373 unsigned int client; |
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374 fd = accept (source, (struct sockaddr *)&client_addr, &client); |
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375 } |
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376 |
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377 directconn->fd = fd; |
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378 |
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379 if (fd > 0) |
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380 { |
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381 directconn->inpa = gaim_input_add(fd, GAIM_INPUT_READ, read_cb, |
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382 directconn); |
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383 |
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384 if (TRUE) |
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385 { |
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386 /* Send foo. */ |
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387 msn_directconn_write(directconn, "foo", strlen("foo") + 1); |
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388 |
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389 /* Send Handshake */ |
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390 msn_directconn_send_handshake(directconn); |
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391 } |
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392 else |
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393 { |
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394 } |
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395 } |
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396 else |
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397 { |
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398 /* ERROR */ |
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399 gaim_debug_error("msn", "could not add input\n"); |
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400 |
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401 if (directconn->inpa) |
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402 gaim_input_remove(directconn->inpa); |
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403 |
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404 close(directconn->fd); |
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405 } |
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406 } |
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407 |
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408 gboolean |
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409 msn_directconn_connect(MsnDirectConn *directconn, const char *host, int port) |
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410 { |
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411 MsnSession *session; |
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412 |
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413 g_return_val_if_fail(directconn != NULL, FALSE); |
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414 g_return_val_if_fail(host != NULL, TRUE); |
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415 g_return_val_if_fail(port > 0, FALSE); |
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416 |
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417 session = directconn->slplink->session; |
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418 |
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419 #if 0 |
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420 if (session->http_method) |
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421 { |
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422 servconn->http_data->gateway_host = g_strdup(host); |
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423 } |
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424 #endif |
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425 |
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426 directconn->connect_data = gaim_proxy_connect(NULL, session->account, |
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427 host, port, connect_cb, directconn); |
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428 |
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429 if (directconn->connect_data != NULL) |
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430 { |
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431 return TRUE; |
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432 } |
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433 else |
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434 return FALSE; |
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435 } |
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436 |
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437 #if 0 |
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438 void |
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439 msn_directconn_listen(MsnDirectConn *directconn) |
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440 { |
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441 int port; |
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442 int fd; |
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443 |
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444 port = 7000; |
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445 |
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446 for (fd = -1; fd < 0;) |
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447 fd = create_listener(++port); |
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448 |
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449 directconn->fd = fd; |
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450 |
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451 directconn->inpa = gaim_input_add(fd, GAIM_INPUT_READ, connect_cb, |
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452 directconn); |
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453 |
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454 directconn->port = port; |
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455 directconn->c = 0; |
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456 } |
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457 #endif |
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458 |
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459 MsnDirectConn* |
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460 msn_directconn_new(MsnSlpLink *slplink) |
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461 { |
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462 MsnDirectConn *directconn; |
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463 |
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464 directconn = g_new0(MsnDirectConn, 1); |
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465 |
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466 directconn->slplink = slplink; |
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467 |
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468 if (slplink->directconn != NULL) |
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469 gaim_debug_info("msn", "got_transresp: LEAK\n"); |
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470 |
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471 slplink->directconn = directconn; |
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472 |
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473 return directconn; |
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474 } |
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475 |
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476 void |
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477 msn_directconn_destroy(MsnDirectConn *directconn) |
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478 { |
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479 if (directconn->connect_data != NULL) |
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480 gaim_proxy_connect_cancel(directconn->connect_data); |
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481 |
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482 if (directconn->inpa != 0) |
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483 gaim_input_remove(directconn->inpa); |
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484 |
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485 if (directconn->fd >= 0) |
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486 close(directconn->fd); |
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487 |
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488 if (directconn->nonce != NULL) |
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489 g_free(directconn->nonce); |
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490 |
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491 directconn->slplink->directconn = NULL; |
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492 |
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493 g_free(directconn); |
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494 } |