1 | /********************************************************************\ |
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2 | * BitlBee -- An IRC to other IM-networks gateway * |
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3 | * * |
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4 | * Copyright 2002-2004 Wilmer van der Gaast and others * |
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5 | \********************************************************************/ |
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6 | |
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7 | /* Stuff to handle, save and search buddies */ |
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8 | |
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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 with |
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21 | the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL; |
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22 | if not, write to the Free Software Foundation, Inc., 59 Temple Place, |
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23 | Suite 330, Boston, MA 02111-1307 USA |
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24 | */ |
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25 | |
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26 | #define BITLBEE_CORE |
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27 | #include "bitlbee.h" |
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28 | |
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29 | user_t *user_add( irc_t *irc, char *nick ) |
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30 | { |
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31 | user_t *u, *lu = NULL; |
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32 | char *key; |
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33 | |
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34 | if( !nick_ok( nick ) ) |
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35 | return( NULL ); |
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36 | |
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37 | if( user_find( irc, nick ) != NULL ) |
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38 | return( NULL ); |
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39 | |
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40 | if( ( u = irc->users ) ) |
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41 | { |
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42 | while( u ) |
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43 | { |
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44 | if( nick_cmp( nick, u->nick ) < 0 ) |
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45 | break; |
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46 | |
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47 | lu = u; |
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48 | u = u->next; |
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49 | } |
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50 | |
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51 | u = g_new0( user_t, 1 ); |
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52 | if( lu ) |
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53 | { |
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54 | u->next = lu->next; |
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55 | lu->next = u; |
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56 | } |
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57 | else |
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58 | { |
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59 | u->next = irc->users; |
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60 | irc->users = u; |
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61 | } |
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62 | } |
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63 | else |
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64 | { |
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65 | irc->users = u = g_new0( user_t, 1 ); |
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66 | } |
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67 | |
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68 | u->user = u->realname = u->host = u->nick = g_strdup( nick ); |
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69 | u->is_private = set_getint( &irc->set, "private" ); |
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70 | |
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71 | key = g_strdup( nick ); |
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72 | nick_lc( key ); |
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73 | g_hash_table_insert( irc->userhash, key, u ); |
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74 | |
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75 | return( u ); |
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76 | } |
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77 | |
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78 | int user_del( irc_t *irc, char *nick ) |
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79 | { |
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80 | user_t *u, *t; |
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81 | char *key; |
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82 | gpointer okey, ovalue; |
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83 | |
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84 | if( !nick_ok( nick ) ) |
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85 | return( 0 ); |
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86 | |
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87 | u = irc->users; |
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88 | t = NULL; |
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89 | while( u ) |
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90 | { |
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91 | if( nick_cmp( u->nick, nick ) == 0 ) |
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92 | { |
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93 | /* Get this key now already, since "nick" might be free()d |
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94 | at the time we start playing with the hash... */ |
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95 | key = g_strdup( nick ); |
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96 | nick_lc( key ); |
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97 | |
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98 | if( t ) |
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99 | t->next = u->next; |
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100 | else |
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101 | irc->users = u->next; |
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102 | if( u->online ) |
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103 | irc_kill( irc, u ); |
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104 | g_free( u->nick ); |
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105 | if( u->nick != u->user ) g_free( u->user ); |
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106 | if( u->nick != u->host ) g_free( u->host ); |
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107 | if( u->nick != u->realname ) g_free( u->realname ); |
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108 | g_free( u->group ); |
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109 | g_free( u->away ); |
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110 | g_free( u->handle ); |
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111 | g_free( u->sendbuf ); |
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112 | if( u->sendbuf_timer ) b_event_remove( u->sendbuf_timer ); |
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113 | g_free( u ); |
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114 | |
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115 | if( !g_hash_table_lookup_extended( irc->userhash, key, &okey, &ovalue ) || ovalue != u ) |
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116 | { |
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117 | g_free( key ); |
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118 | return( 1 ); /* Although this is a severe error, the user is removed from the list... */ |
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119 | } |
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120 | g_hash_table_remove( irc->userhash, key ); |
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121 | g_free( key ); |
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122 | g_free( okey ); |
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123 | |
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124 | return( 1 ); |
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125 | } |
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126 | u = (t=u)->next; |
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127 | } |
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128 | |
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129 | return( 0 ); |
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130 | } |
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131 | |
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132 | user_t *user_find( irc_t *irc, char *nick ) |
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133 | { |
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134 | char key[512] = ""; |
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135 | |
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136 | strncpy( key, nick, sizeof( key ) - 1 ); |
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137 | if( nick_lc( key ) ) |
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138 | return( g_hash_table_lookup( irc->userhash, key ) ); |
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139 | else |
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140 | return( NULL ); |
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141 | } |
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142 | |
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143 | user_t *user_findhandle( struct gaim_connection *gc, char *handle ) |
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144 | { |
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145 | user_t *u = gc->irc->users; |
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146 | |
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147 | while( u ) |
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148 | { |
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149 | if( u->gc == gc && u->handle && gc->acc->prpl->cmp_buddynames ( u->handle, handle ) == 0 ) |
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150 | break; |
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151 | u = u->next; |
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152 | } |
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153 | |
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154 | return( u ); |
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155 | } |
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156 | |
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157 | void user_rename( irc_t *irc, char *oldnick, char *newnick ) |
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158 | { |
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159 | user_t *u = user_find( irc, oldnick ); |
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160 | gpointer okey, ovalue; |
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161 | char *key; |
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162 | |
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163 | if( !u ) return; /* Should've been checked by the caller... */ |
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164 | |
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165 | g_free( u->nick ); |
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166 | if( u->nick == u->user ) u->user = NULL; |
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167 | if( u->nick == u->host ) u->host = NULL; |
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168 | if( u->nick == u->realname ) u->realname = NULL; |
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169 | u->nick = g_strdup( newnick ); |
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170 | if( !u->user ) u->user = u->nick; |
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171 | if( !u->host ) u->host = u->nick; |
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172 | if( !u->realname ) u->realname = u->nick; |
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173 | |
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174 | /* Remove the old reference to this user from the hash and create a |
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175 | new one with the new nick. This is indeed a bit messy. */ |
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176 | key = g_strdup( oldnick ); |
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177 | nick_lc( key ); |
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178 | if( !g_hash_table_lookup_extended( irc->userhash, key, &okey, &ovalue ) || ovalue != u ) |
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179 | { |
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180 | g_free( key ); |
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181 | return; /* This really shouldn't happen! */ |
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182 | } |
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183 | g_hash_table_remove( irc->userhash, key ); |
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184 | g_free( key ); |
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185 | g_free( okey ); |
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186 | |
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187 | key = g_strdup( newnick ); |
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188 | nick_lc( key ); |
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189 | g_hash_table_insert( irc->userhash, key, u ); |
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190 | |
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191 | /* Also, let's try to keep the linked list nicely sorted. Fear this |
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192 | code. If my teacher would see this, she would cry. ;-) */ |
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193 | { |
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194 | user_t *u1, *lu1; |
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195 | |
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196 | /* Remove the user from the old position in the chain. */ |
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197 | if( u == irc->users ) |
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198 | { |
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199 | irc->users = u->next; |
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200 | } |
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201 | else |
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202 | { |
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203 | u1 = u; |
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204 | for( lu1 = irc->users; lu1->next != u1; lu1 = lu1->next ); |
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205 | lu1->next = u1->next; |
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206 | } |
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207 | |
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208 | /* Search for the new position. */ |
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209 | for( lu1 = NULL, u1 = irc->users; u1; u1 = u1->next ) |
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210 | { |
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211 | if( nick_cmp( newnick, u1->nick ) < 0 ) |
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212 | break; |
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213 | |
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214 | lu1 = u1; |
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215 | } |
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216 | |
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217 | /* Insert it at this new position. */ |
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218 | u->next = u1; |
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219 | if( lu1 ) |
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220 | lu1->next = u; |
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221 | else |
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222 | irc->users = u; |
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223 | } |
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224 | } |
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