| File: | plugins/xsettings/xsettings-common.c |
| Warning: | line 142, column 10 This statement is never executed |
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| 1 | /* |
| 2 | * Copyright © 2001 Red Hat, Inc. |
| 3 | * |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 5 | * documentation for any purpose is hereby granted without fee, provided that |
| 6 | * the above copyright notice appear in all copies and that both that |
| 7 | * copyright notice and this permission notice appear in supporting |
| 8 | * documentation, and that the name of Red Hat not be used in advertising or |
| 9 | * publicity pertaining to distribution of the software without specific, |
| 10 | * written prior permission. Red Hat makes no representations about the |
| 11 | * suitability of this software for any purpose. It is provided "as is" |
| 12 | * without express or implied warranty. |
| 13 | * |
| 14 | * RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL RED HAT |
| 16 | * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 17 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| 18 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| 19 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 20 | * |
| 21 | * Author: Owen Taylor, Red Hat, Inc. |
| 22 | */ |
| 23 | #include "string.h" |
| 24 | #include "stdlib.h" |
| 25 | |
| 26 | #include <X11/Xlib.h> |
| 27 | #include <X11/Xmd.h> /* For CARD32 */ |
| 28 | |
| 29 | #include "xsettings-common.h" |
| 30 | |
| 31 | XSettingsSetting * |
| 32 | xsettings_setting_copy (XSettingsSetting *setting) |
| 33 | { |
| 34 | XSettingsSetting *result; |
| 35 | size_t str_len; |
| 36 | |
| 37 | result = malloc (sizeof *result); |
| 38 | if (!result) |
| 39 | return NULL((void*)0); |
| 40 | |
| 41 | str_len = strlen (setting->name); |
| 42 | result->name = malloc (str_len + 1); |
| 43 | if (!result->name) |
| 44 | goto err; |
| 45 | |
| 46 | memcpy (result->name, setting->name, str_len + 1); |
| 47 | |
| 48 | result->type = setting->type; |
| 49 | |
| 50 | switch (setting->type) |
| 51 | { |
| 52 | case XSETTINGS_TYPE_INT: |
| 53 | result->data.v_int = setting->data.v_int; |
| 54 | break; |
| 55 | case XSETTINGS_TYPE_COLOR: |
| 56 | result->data.v_color = setting->data.v_color; |
| 57 | break; |
| 58 | case XSETTINGS_TYPE_STRING: |
| 59 | str_len = strlen (setting->data.v_string); |
| 60 | result->data.v_string = malloc (str_len + 1); |
| 61 | if (!result->data.v_string) |
| 62 | goto err; |
| 63 | |
| 64 | memcpy (result->data.v_string, setting->data.v_string, str_len + 1); |
| 65 | break; |
| 66 | } |
| 67 | |
| 68 | result->last_change_serial = setting->last_change_serial; |
| 69 | |
| 70 | return result; |
| 71 | |
| 72 | err: |
| 73 | if (result->name) |
| 74 | free (result->name); |
| 75 | free (result); |
| 76 | |
| 77 | return NULL((void*)0); |
| 78 | } |
| 79 | |
| 80 | XSettingsList * |
| 81 | xsettings_list_copy (XSettingsList *list) |
| 82 | { |
| 83 | XSettingsList *new = NULL((void*)0); |
| 84 | XSettingsList *old_iter = list; |
| 85 | XSettingsList *new_iter = NULL((void*)0); |
| 86 | |
| 87 | while (old_iter) |
| 88 | { |
| 89 | XSettingsList *new_node; |
| 90 | |
| 91 | new_node = malloc (sizeof *new_node); |
| 92 | if (!new_node) |
| 93 | goto error; |
| 94 | |
| 95 | new_node->setting = xsettings_setting_copy (old_iter->setting); |
| 96 | if (!new_node->setting) |
| 97 | { |
| 98 | free (new_node); |
| 99 | goto error; |
| 100 | } |
| 101 | |
| 102 | if (new_iter) |
| 103 | new_iter->next = new_node; |
| 104 | else |
| 105 | new = new_node; |
| 106 | |
| 107 | new_iter = new_node; |
| 108 | |
| 109 | old_iter = old_iter->next; |
| 110 | } |
| 111 | |
| 112 | return new; |
| 113 | |
| 114 | error: |
| 115 | xsettings_list_free (new); |
| 116 | return NULL((void*)0); |
| 117 | } |
| 118 | |
| 119 | int |
| 120 | xsettings_setting_equal (XSettingsSetting *setting_a, |
| 121 | XSettingsSetting *setting_b) |
| 122 | { |
| 123 | if (setting_a->type != setting_b->type) |
| 124 | return 0; |
| 125 | |
| 126 | if (strcmp (setting_a->name, setting_b->name) != 0) |
| 127 | return 0; |
| 128 | |
| 129 | switch (setting_a->type) |
| 130 | { |
| 131 | case XSETTINGS_TYPE_INT: |
| 132 | return setting_a->data.v_int == setting_b->data.v_int; |
| 133 | case XSETTINGS_TYPE_COLOR: |
| 134 | return (setting_a->data.v_color.red == setting_b->data.v_color.red && |
| 135 | setting_a->data.v_color.green == setting_b->data.v_color.green && |
| 136 | setting_a->data.v_color.blue == setting_b->data.v_color.blue && |
| 137 | setting_a->data.v_color.alpha == setting_b->data.v_color.alpha); |
| 138 | case XSETTINGS_TYPE_STRING: |
| 139 | return strcmp (setting_a->data.v_string, setting_b->data.v_string) == 0; |
| 140 | } |
| 141 | |
| 142 | return 0; |
This statement is never executed | |
| 143 | } |
| 144 | |
| 145 | void |
| 146 | xsettings_setting_free (XSettingsSetting *setting) |
| 147 | { |
| 148 | if (setting->type == XSETTINGS_TYPE_STRING) |
| 149 | free (setting->data.v_string); |
| 150 | |
| 151 | if (setting->name) |
| 152 | free (setting->name); |
| 153 | |
| 154 | free (setting); |
| 155 | } |
| 156 | |
| 157 | void |
| 158 | xsettings_list_free (XSettingsList *list) |
| 159 | { |
| 160 | while (list) |
| 161 | { |
| 162 | XSettingsList *next = list->next; |
| 163 | |
| 164 | xsettings_setting_free (list->setting); |
| 165 | free (list); |
| 166 | |
| 167 | list = next; |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | XSettingsResult |
| 172 | xsettings_list_insert (XSettingsList **list, |
| 173 | XSettingsSetting *setting) |
| 174 | { |
| 175 | XSettingsList *node; |
| 176 | XSettingsList *iter; |
| 177 | XSettingsList *last = NULL((void*)0); |
| 178 | |
| 179 | node = malloc (sizeof *node); |
| 180 | if (!node) |
| 181 | return XSETTINGS_NO_MEM; |
| 182 | node->setting = setting; |
| 183 | |
| 184 | iter = *list; |
| 185 | while (iter) |
| 186 | { |
| 187 | int cmp = strcmp (setting->name, iter->setting->name); |
| 188 | |
| 189 | if (cmp < 0) |
| 190 | break; |
| 191 | else if (cmp == 0) |
| 192 | { |
| 193 | free (node); |
| 194 | return XSETTINGS_DUPLICATE_ENTRY; |
| 195 | } |
| 196 | |
| 197 | last = iter; |
| 198 | iter = iter->next; |
| 199 | } |
| 200 | |
| 201 | if (last) |
| 202 | last->next = node; |
| 203 | else |
| 204 | *list = node; |
| 205 | |
| 206 | node->next = iter; |
| 207 | |
| 208 | return XSETTINGS_SUCCESS; |
| 209 | } |
| 210 | |
| 211 | XSettingsResult |
| 212 | xsettings_list_delete (XSettingsList **list, |
| 213 | const char *name) |
| 214 | { |
| 215 | XSettingsList *iter; |
| 216 | XSettingsList *last = NULL((void*)0); |
| 217 | |
| 218 | iter = *list; |
| 219 | while (iter) |
| 220 | { |
| 221 | if (strcmp (name, iter->setting->name) == 0) |
| 222 | { |
| 223 | if (last) |
| 224 | last->next = iter->next; |
| 225 | else |
| 226 | *list = iter->next; |
| 227 | |
| 228 | xsettings_setting_free (iter->setting); |
| 229 | free (iter); |
| 230 | |
| 231 | return XSETTINGS_SUCCESS; |
| 232 | } |
| 233 | |
| 234 | last = iter; |
| 235 | iter = iter->next; |
| 236 | } |
| 237 | |
| 238 | return XSETTINGS_FAILED; |
| 239 | } |
| 240 | |
| 241 | XSettingsSetting * |
| 242 | xsettings_list_lookup (XSettingsList *list, |
| 243 | const char *name) |
| 244 | { |
| 245 | XSettingsList *iter; |
| 246 | |
| 247 | iter = list; |
| 248 | while (iter) |
| 249 | { |
| 250 | if (strcmp (name, iter->setting->name) == 0) |
| 251 | return iter->setting; |
| 252 | |
| 253 | iter = iter->next; |
| 254 | } |
| 255 | |
| 256 | return NULL((void*)0); |
| 257 | } |
| 258 | |
| 259 | char |
| 260 | xsettings_byte_order (void) |
| 261 | { |
| 262 | CARD32 myint = 0x01020304; |
| 263 | return (*(char *)&myint == 1) ? MSBFirst1 : LSBFirst0; |
| 264 | } |