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 2002-2005 Wilmer van der Gaast and others * |
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5 | \********************************************************************/ |
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6 | |
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7 | /* Some stuff to register, handle and save user preferences */ |
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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 | #define BITLBEE_CORE |
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26 | #include "bitlbee.h" |
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27 | |
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28 | /* Used to use NULL for this, but NULL is actually a "valid" value. */ |
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29 | char *SET_INVALID = "nee"; |
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30 | |
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31 | set_t *set_add( set_t **head, const char *key, const char *def, set_eval eval, void *data ) |
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32 | { |
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33 | set_t *s = set_find( head, key ); |
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34 | |
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35 | /* Possibly the setting already exists. If it doesn't exist yet, |
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36 | we create it. If it does, we'll just change the default. */ |
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37 | if( !s ) |
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38 | { |
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39 | if( ( s = *head ) ) |
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40 | { |
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41 | while( s->next ) s = s->next; |
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42 | s->next = g_new0( set_t, 1 ); |
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43 | s = s->next; |
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44 | } |
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45 | else |
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46 | { |
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47 | s = *head = g_new0( set_t, 1 ); |
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48 | } |
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49 | s->key = g_strdup( key ); |
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50 | } |
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51 | |
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52 | if( s->def ) |
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53 | { |
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54 | g_free( s->def ); |
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55 | s->def = NULL; |
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56 | } |
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57 | if( def ) s->def = g_strdup( def ); |
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58 | |
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59 | s->eval = eval; |
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60 | s->data = data; |
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61 | |
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62 | return s; |
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63 | } |
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64 | |
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65 | set_t *set_find( set_t **head, char *key ) |
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66 | { |
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67 | set_t *s = *head; |
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68 | |
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69 | while( s ) |
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70 | { |
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71 | if( g_strcasecmp( s->key, key ) == 0 ) |
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72 | break; |
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73 | s = s->next; |
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74 | } |
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75 | |
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76 | return s; |
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77 | } |
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78 | |
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79 | char *set_getstr( set_t **head, char *key ) |
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80 | { |
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81 | set_t *s = set_find( head, key ); |
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82 | |
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83 | if( !s || ( !s->value && !s->def ) ) |
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84 | return NULL; |
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85 | |
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86 | return s->value ? s->value : s->def; |
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87 | } |
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88 | |
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89 | int set_getint( set_t **head, char *key ) |
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90 | { |
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91 | char *s = set_getstr( head, key ); |
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92 | int i = 0; |
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93 | |
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94 | if( !s ) |
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95 | return 0; |
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96 | |
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97 | if( sscanf( s, "%d", &i ) != 1 ) |
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98 | return 0; |
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99 | |
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100 | return i; |
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101 | } |
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102 | |
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103 | int set_getbool( set_t **head, char *key ) |
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104 | { |
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105 | char *s = set_getstr( head, key ); |
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106 | |
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107 | if( !s ) |
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108 | return 0; |
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109 | |
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110 | return bool2int( s ); |
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111 | } |
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112 | |
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113 | int set_setstr( set_t **head, char *key, char *value ) |
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114 | { |
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115 | set_t *s = set_find( head, key ); |
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116 | char *nv = value; |
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117 | |
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118 | if( !s ) |
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119 | /* |
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120 | Used to do this, but it never really made sense. |
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121 | s = set_add( head, key, NULL, NULL, NULL ); |
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122 | */ |
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123 | return 0; |
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124 | |
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125 | if( value == NULL && ( s->flags & SET_NULL_OK ) == 0 ) |
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126 | return 0; |
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127 | |
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128 | /* Call the evaluator. For invalid values, evaluators should now |
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129 | return SET_INVALID, but previously this was NULL. Try to handle |
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130 | that too if NULL is not an allowed value for this setting. */ |
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131 | if( s->eval && ( ( nv = s->eval( s, value ) ) == SET_INVALID || |
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132 | ( ( s->flags & SET_NULL_OK ) == 0 && nv == NULL ) ) ) |
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133 | return 0; |
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134 | |
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135 | if( s->value ) |
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136 | { |
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137 | g_free( s->value ); |
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138 | s->value = NULL; |
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139 | } |
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140 | |
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141 | /* If there's a default setting and it's equal to what we're trying to |
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142 | set, stick with s->value = NULL. Otherwise, remember the setting. */ |
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143 | if( !s->def || ( strcmp( nv, s->def ) != 0 ) ) |
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144 | s->value = g_strdup( nv ); |
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145 | |
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146 | if( nv != value ) |
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147 | g_free( nv ); |
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148 | |
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149 | return 1; |
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150 | } |
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151 | |
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152 | int set_setint( set_t **head, char *key, int value ) |
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153 | { |
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154 | char s[24]; /* Not quite 128-bit clean eh? ;-) */ |
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155 | |
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156 | g_snprintf( s, sizeof( s ), "%d", value ); |
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157 | return set_setstr( head, key, s ); |
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158 | } |
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159 | |
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160 | void set_del( set_t **head, char *key ) |
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161 | { |
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162 | set_t *s = *head, *t = NULL; |
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163 | |
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164 | while( s ) |
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165 | { |
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166 | if( g_strcasecmp( s->key, key ) == 0 ) |
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167 | break; |
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168 | s = (t=s)->next; |
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169 | } |
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170 | if( s ) |
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171 | { |
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172 | if( t ) |
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173 | t->next = s->next; |
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174 | else |
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175 | *head = s->next; |
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176 | |
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177 | g_free( s->key ); |
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178 | if( s->value ) g_free( s->value ); |
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179 | if( s->def ) g_free( s->def ); |
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180 | g_free( s ); |
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181 | } |
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182 | } |
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183 | |
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184 | int set_reset( set_t **head, char *key ) |
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185 | { |
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186 | set_t *s; |
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187 | |
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188 | s = set_find( head, key ); |
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189 | if( s ) |
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190 | return set_setstr( head, key, s->def ); |
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191 | |
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192 | return 0; |
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193 | } |
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194 | |
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195 | char *set_eval_int( set_t *set, char *value ) |
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196 | { |
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197 | char *s = value; |
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198 | |
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199 | /* Allow a minus at the first position. */ |
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200 | if( *s == '-' ) |
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201 | s ++; |
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202 | |
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203 | for( ; *s; s ++ ) |
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204 | if( !isdigit( *s ) ) |
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205 | return SET_INVALID; |
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206 | |
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207 | return value; |
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208 | } |
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209 | |
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210 | char *set_eval_bool( set_t *set, char *value ) |
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211 | { |
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212 | return is_bool( value ) ? value : SET_INVALID; |
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213 | } |
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214 | |
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215 | char *set_eval_to_char( set_t *set, char *value ) |
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216 | { |
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217 | char *s = g_new( char, 3 ); |
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218 | |
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219 | if( *value == ' ' ) |
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220 | strcpy( s, " " ); |
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221 | else |
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222 | sprintf( s, "%c ", *value ); |
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223 | |
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224 | return s; |
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225 | } |
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226 | |
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227 | char *set_eval_ops( set_t *set, char *value ) |
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228 | { |
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229 | irc_t *irc = set->data; |
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230 | |
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231 | if( g_strcasecmp( value, "user" ) == 0 ) |
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232 | irc_write( irc, ":%s!%s@%s MODE %s %s %s %s", irc->mynick, irc->mynick, irc->myhost, |
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233 | irc->channel, "+o-o", irc->nick, irc->mynick ); |
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234 | else if( g_strcasecmp( value, "root" ) == 0 ) |
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235 | irc_write( irc, ":%s!%s@%s MODE %s %s %s %s", irc->mynick, irc->mynick, irc->myhost, |
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236 | irc->channel, "-o+o", irc->nick, irc->mynick ); |
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237 | else if( g_strcasecmp( value, "both" ) == 0 ) |
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238 | irc_write( irc, ":%s!%s@%s MODE %s %s %s %s", irc->mynick, irc->mynick, irc->myhost, |
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239 | irc->channel, "+oo", irc->nick, irc->mynick ); |
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240 | else if( g_strcasecmp( value, "none" ) == 0 ) |
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241 | irc_write( irc, ":%s!%s@%s MODE %s %s %s %s", irc->mynick, irc->mynick, irc->myhost, |
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242 | irc->channel, "-oo", irc->nick, irc->mynick ); |
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243 | else |
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244 | return SET_INVALID; |
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245 | |
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246 | return value; |
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247 | } |
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