1/* Internationalization implementation. Includes definitions of English 2 * string arrays, and the i18n pointer. */ 3 4#include <linux/slab.h> /* For kmalloc. */ 5#include <linux/ctype.h> 6#include <linux/module.h> 7#include <linux/string.h> 8#include "speakup.h" 9#include "spk_priv.h" 10 11static char *speakup_msgs[MSG_LAST_INDEX]; 12static char *speakup_default_msgs[MSG_LAST_INDEX] = { 13 [MSG_BLANK] = "blank", 14 [MSG_IAM_ALIVE] = "I'm aLive!", 15 [MSG_YOU_KILLED_SPEAKUP] = "You killed speakup!", 16 [MSG_HEY_THATS_BETTER] = "hey. That's better!", 17 [MSG_YOU_TURNED_ME_OFF] = "You turned me off!", 18 [MSG_PARKED] = "parked!", 19 [MSG_UNPARKED] = "unparked!", 20 [MSG_MARK] = "mark", 21 [MSG_CUT] = "cut", 22 [MSG_MARK_CLEARED] = "mark, cleared", 23 [MSG_PASTE] = "paste", 24 [MSG_BRIGHT] = "bright", 25 [MSG_ON_BLINKING] = "on blinking", 26 [MSG_OFF] = "off", 27 [MSG_ON] = "on", 28 [MSG_NO_WINDOW] = "no window", 29 [MSG_CURSORING_OFF] = "cursoring off", 30 [MSG_CURSORING_ON] = "cursoring on", 31 [MSG_HIGHLIGHT_TRACKING] = "highlight tracking", 32 [MSG_READ_WINDOW] = "read windo", 33 [MSG_READ_ALL] = "read all", 34 [MSG_EDIT_DONE] = "edit done", 35 [MSG_WINDOW_ALREADY_SET] = "window already set, clear then reset", 36 [MSG_END_BEFORE_START] = "error end before start", 37 [MSG_WINDOW_CLEARED] = "window cleared", 38 [MSG_WINDOW_SILENCED] = "window silenced", 39 [MSG_WINDOW_SILENCE_DISABLED] = "window silence disabled", 40 [MSG_ERROR] = "error", 41 [MSG_GOTO_CANCELED] = "goto canceled", 42 [MSG_GOTO] = "go to?", 43 [MSG_LEAVING_HELP] = "leaving help", 44 [MSG_IS_UNASSIGNED] = "is unassigned", 45 [MSG_HELP_INFO] = 46 "press space to exit, up or down to scroll, or a letter to go to a command", 47 [MSG_EDGE_TOP] = "top,", 48 [MSG_EDGE_BOTTOM] = "bottom,", 49 [MSG_EDGE_LEFT] = "left,", 50 [MSG_EDGE_RIGHT] = "right,", 51 [MSG_NUMBER] = "number", 52 [MSG_SPACE] = "space", 53 [MSG_START] = "start", 54 [MSG_END] = "end", 55 [MSG_CTRL] = "control-", 56 [MSG_DISJUNCTION] = "or", 57 58/* Messages with embedded format specifiers. */ 59 [MSG_POS_INFO] = "line %ld, col %ld, t t y %d", 60 [MSG_CHAR_INFO] = "hex %02x, decimal %d", 61 [MSG_REPEAT_DESC] = "times %d .", 62 [MSG_REPEAT_DESC2] = "repeated %d .", 63 [MSG_WINDOW_LINE] = "window is line %d", 64 [MSG_WINDOW_BOUNDARY] = "%s at line %d, column %d", 65 [MSG_EDIT_PROMPT] = "edit %s, press space when done", 66 [MSG_NO_COMMAND] = "no commands for %c", 67 [MSG_KEYDESC] = "is %s", 68 69 /* Control keys. */ 70 /* Most of these duplicate the entries in state names. */ 71 [MSG_CTL_SHIFT] = "shift", 72 [MSG_CTL_ALTGR] = "altgr", 73 [MSG_CTL_CONTROL] = "control", 74 [MSG_CTL_ALT] = "alt", 75 [MSG_CTL_LSHIFT] = "l shift", 76 [MSG_CTL_SPEAKUP] = "speakup", 77 [MSG_CTL_LCONTROL] = "l control", 78 [MSG_CTL_RCONTROL] = "r control", 79 [MSG_CTL_CAPSSHIFT] = "caps shift", 80 81 /* Color names. */ 82 [MSG_COLOR_BLACK] = "black", 83 [MSG_COLOR_BLUE] = "blue", 84 [MSG_COLOR_GREEN] = "green", 85 [MSG_COLOR_CYAN] = "cyan", 86 [MSG_COLOR_RED] = "red", 87 [MSG_COLOR_MAGENTA] = "magenta", 88 [MSG_COLOR_YELLOW] = "yellow", 89 [MSG_COLOR_WHITE] = "white", 90 [MSG_COLOR_GREY] = "grey", 91 92 /* Names of key states. */ 93 [MSG_STATE_DOUBLE] = "double", 94 [MSG_STATE_SPEAKUP] = "speakup", 95 [MSG_STATE_ALT] = "alt", 96 [MSG_STATE_CONTROL] = "ctrl", 97 [MSG_STATE_ALTGR] = "altgr", 98 [MSG_STATE_SHIFT] = "shift", 99 100 /* Key names. */ 101 [MSG_KEYNAME_ESC] = "escape", 102 [MSG_KEYNAME_1] = "1", 103 [MSG_KEYNAME_2] = "2", 104 [MSG_KEYNAME_3] = "3", 105 [MSG_KEYNAME_4] = "4", 106 [MSG_KEYNAME_5] = "5", 107 [MSG_KEYNAME_6] = "6", 108 [MSG_KEYNAME_7] = "7", 109 [MSG_KEYNAME_8] = "8", 110 [MSG_KEYNAME_9] = "9", 111 [MSG_KEYNAME_0] = "0", 112 [MSG_KEYNAME_DASH] = "minus", 113 [MSG_KEYNAME_EQUAL] = "equal", 114 [MSG_KEYNAME_BS] = "back space", 115 [MSG_KEYNAME_TAB] = "tab", 116 [MSG_KEYNAME_Q] = "q", 117 [MSG_KEYNAME_W] = "w", 118 [MSG_KEYNAME_E] = "e", 119 [MSG_KEYNAME_R] = "r", 120 [MSG_KEYNAME_T] = "t", 121 [MSG_KEYNAME_Y] = "y", 122 [MSG_KEYNAME_U] = "u", 123 [MSG_KEYNAME_I] = "i", 124 [MSG_KEYNAME_O] = "o", 125 [MSG_KEYNAME_P] = "p", 126 [MSG_KEYNAME_LEFTBRACE] = "left brace", 127 [MSG_KEYNAME_RIGHTBRACE] = "right brace", 128 [MSG_KEYNAME_ENTER] = "enter", 129 [MSG_KEYNAME_LEFTCTRL] = "left control", 130 [MSG_KEYNAME_A] = "a", 131 [MSG_KEYNAME_S] = "s", 132 [MSG_KEYNAME_D] = "d", 133 [MSG_KEYNAME_F] = "f", 134 [MSG_KEYNAME_G] = "g", 135 [MSG_KEYNAME_H] = "h", 136 [MSG_KEYNAME_J] = "j", 137 [MSG_KEYNAME_K] = "k", 138 [MSG_KEYNAME_L] = "l", 139 [MSG_KEYNAME_SEMICOLON] = "semicolon", 140 [MSG_KEYNAME_SINGLEQUOTE] = "apostrophe", 141 [MSG_KEYNAME_GRAVE] = "accent", 142 [MSG_KEYNAME_LEFTSHFT] = "left shift", 143 [MSG_KEYNAME_BACKSLASH] = "back slash", 144 [MSG_KEYNAME_Z] = "z", 145 [MSG_KEYNAME_X] = "x", 146 [MSG_KEYNAME_C] = "c", 147 [MSG_KEYNAME_V] = "v", 148 [MSG_KEYNAME_B] = "b", 149 [MSG_KEYNAME_N] = "n", 150 [MSG_KEYNAME_M] = "m", 151 [MSG_KEYNAME_COMMA] = "comma", 152 [MSG_KEYNAME_DOT] = "dot", 153 [MSG_KEYNAME_SLASH] = "slash", 154 [MSG_KEYNAME_RIGHTSHFT] = "right shift", 155 [MSG_KEYNAME_KPSTAR] = "keypad asterisk", 156 [MSG_KEYNAME_LEFTALT] = "left alt", 157 [MSG_KEYNAME_SPACE] = "space", 158 [MSG_KEYNAME_CAPSLOCK] = "caps lock", 159 [MSG_KEYNAME_F1] = "f1", 160 [MSG_KEYNAME_F2] = "f2", 161 [MSG_KEYNAME_F3] = "f3", 162 [MSG_KEYNAME_F4] = "f4", 163 [MSG_KEYNAME_F5] = "f5", 164 [MSG_KEYNAME_F6] = "f6", 165 [MSG_KEYNAME_F7] = "f7", 166 [MSG_KEYNAME_F8] = "f8", 167 [MSG_KEYNAME_F9] = "f9", 168 [MSG_KEYNAME_F10] = "f10", 169 [MSG_KEYNAME_NUMLOCK] = "num lock", 170 [MSG_KEYNAME_SCROLLLOCK] = "scroll lock", 171 [MSG_KEYNAME_KP7] = "keypad 7", 172 [MSG_KEYNAME_KP8] = "keypad 8", 173 [MSG_KEYNAME_KP9] = "keypad 9", 174 [MSG_KEYNAME_KPMINUS] = "keypad minus", 175 [MSG_KEYNAME_KP4] = "keypad 4", 176 [MSG_KEYNAME_KP5] = "keypad 5", 177 [MSG_KEYNAME_KP6] = "keypad 6", 178 [MSG_KEYNAME_KPPLUS] = "keypad plus", 179 [MSG_KEYNAME_KP1] = "keypad 1", 180 [MSG_KEYNAME_KP2] = "keypad 2", 181 [MSG_KEYNAME_KP3] = "keypad 3", 182 [MSG_KEYNAME_KP0] = "keypad 0", 183 [MSG_KEYNAME_KPDOT] = "keypad dot", 184 [MSG_KEYNAME_103RD] = "103rd", 185 [MSG_KEYNAME_F13] = "f13", 186 [MSG_KEYNAME_102ND] = "102nd", 187 [MSG_KEYNAME_F11] = "f11", 188 [MSG_KEYNAME_F12] = "f12", 189 [MSG_KEYNAME_F14] = "f14", 190 [MSG_KEYNAME_F15] = "f15", 191 [MSG_KEYNAME_F16] = "f16", 192 [MSG_KEYNAME_F17] = "f17", 193 [MSG_KEYNAME_F18] = "f18", 194 [MSG_KEYNAME_F19] = "f19", 195 [MSG_KEYNAME_F20] = "f20", 196 [MSG_KEYNAME_KPENTER] = "keypad enter", 197 [MSG_KEYNAME_RIGHTCTRL] = "right control", 198 [MSG_KEYNAME_KPSLASH] = "keypad slash", 199 [MSG_KEYNAME_SYSRQ] = "sysrq", 200 [MSG_KEYNAME_RIGHTALT] = "right alt", 201 [MSG_KEYNAME_LF] = "line feed", 202 [MSG_KEYNAME_HOME] = "home", 203 [MSG_KEYNAME_UP] = "up", 204 [MSG_KEYNAME_PGUP] = "page up", 205 [MSG_KEYNAME_LEFT] = "left", 206 [MSG_KEYNAME_RIGHT] = "right", 207 [MSG_KEYNAME_END] = "end", 208 [MSG_KEYNAME_DOWN] = "down", 209 [MSG_KEYNAME_PGDN] = "page down", 210 [MSG_KEYNAME_INS] = "insert", 211 [MSG_KEYNAME_DEL] = "delete", 212 [MSG_KEYNAME_MACRO] = "macro", 213 [MSG_KEYNAME_MUTE] = "mute", 214 [MSG_KEYNAME_VOLDOWN] = "volume down", 215 [MSG_KEYNAME_VOLUP] = "volume up", 216 [MSG_KEYNAME_POWER] = "power", 217 [MSG_KEYNAME_KPEQUAL] = "keypad equal", 218 [MSG_KEYNAME_KPPLUSDASH] = "keypad plusminus", 219 [MSG_KEYNAME_PAUSE] = "pause", 220 [MSG_KEYNAME_F21] = "f21", 221 [MSG_KEYNAME_F22] = "f22", 222 [MSG_KEYNAME_F23] = "f23", 223 [MSG_KEYNAME_F24] = "f24", 224 [MSG_KEYNAME_KPCOMMA] = "keypad comma", 225 [MSG_KEYNAME_LEFTMETA] = "left meta", 226 [MSG_KEYNAME_RIGHTMETA] = "right meta", 227 [MSG_KEYNAME_COMPOSE] = "compose", 228 [MSG_KEYNAME_STOP] = "stop", 229 [MSG_KEYNAME_AGAIN] = "again", 230 [MSG_KEYNAME_PROPS] = "props", 231 [MSG_KEYNAME_UNDO] = "undo", 232 [MSG_KEYNAME_FRONT] = "front", 233 [MSG_KEYNAME_COPY] = "copy", 234 [MSG_KEYNAME_OPEN] = "open", 235 [MSG_KEYNAME_PASTE] = "paste", 236 [MSG_KEYNAME_FIND] = "find", 237 [MSG_KEYNAME_CUT] = "cut", 238 [MSG_KEYNAME_HELP] = "help", 239 [MSG_KEYNAME_MENU] = "menu", 240 [MSG_KEYNAME_CALC] = "calc", 241 [MSG_KEYNAME_SETUP] = "setup", 242 [MSG_KEYNAME_SLEEP] = "sleep", 243 [MSG_KEYNAME_WAKEUP] = "wakeup", 244 [MSG_KEYNAME_FILE] = "file", 245 [MSG_KEYNAME_SENDFILE] = "send file", 246 [MSG_KEYNAME_DELFILE] = "delete file", 247 [MSG_KEYNAME_XFER] = "transfer", 248 [MSG_KEYNAME_PROG1] = "prog1", 249 [MSG_KEYNAME_PROG2] = "prog2", 250 [MSG_KEYNAME_WWW] = "www", 251 [MSG_KEYNAME_MSDOS] = "msdos", 252 [MSG_KEYNAME_COFFEE] = "coffee", 253 [MSG_KEYNAME_DIRECTION] = "direction", 254 [MSG_KEYNAME_CYCLEWINDOWS] = "cycle windows", 255 [MSG_KEYNAME_MAIL] = "mail", 256 [MSG_KEYNAME_BOOKMARKS] = "bookmarks", 257 [MSG_KEYNAME_COMPUTER] = "computer", 258 [MSG_KEYNAME_BACK] = "back", 259 [MSG_KEYNAME_FORWARD] = "forward", 260 [MSG_KEYNAME_CLOSECD] = "close cd", 261 [MSG_KEYNAME_EJECTCD] = "eject cd", 262 [MSG_KEYNAME_EJECTCLOSE] = "eject close cd", 263 [MSG_KEYNAME_NEXTSONG] = "next song", 264 [MSG_KEYNAME_PLAYPAUSE] = "play pause", 265 [MSG_KEYNAME_PREVSONG] = "previous song", 266 [MSG_KEYNAME_STOPCD] = "stop cd", 267 [MSG_KEYNAME_RECORD] = "record", 268 [MSG_KEYNAME_REWIND] = "rewind", 269 [MSG_KEYNAME_PHONE] = "phone", 270 [MSG_KEYNAME_ISO] = "iso", 271 [MSG_KEYNAME_CONFIG] = "config", 272 [MSG_KEYNAME_HOMEPG] = "home page", 273 [MSG_KEYNAME_REFRESH] = "refresh", 274 [MSG_KEYNAME_EXIT] = "exit", 275 [MSG_KEYNAME_MOVE] = "move", 276 [MSG_KEYNAME_EDIT] = "edit", 277 [MSG_KEYNAME_SCROLLUP] = "scroll up", 278 [MSG_KEYNAME_SCROLLDN] = "scroll down", 279 [MSG_KEYNAME_KPLEFTPAR] = "keypad left paren", 280 [MSG_KEYNAME_KPRIGHTPAR] = "keypad right paren", 281 282 /* Function names. */ 283 [MSG_FUNCNAME_ATTRIB_BLEEP_DEC] = "attribute bleep decrement", 284 [MSG_FUNCNAME_ATTRIB_BLEEP_INC] = "attribute bleep increment", 285 [MSG_FUNCNAME_BLEEPS_DEC] = "bleeps decrement", 286 [MSG_FUNCNAME_BLEEPS_INC] = "bleeps increment", 287 [MSG_FUNCNAME_CHAR_FIRST] = "character, first", 288 [MSG_FUNCNAME_CHAR_LAST] = "character, last", 289 [MSG_FUNCNAME_CHAR_CURRENT] = "character, say current", 290 [MSG_FUNCNAME_CHAR_HEX_AND_DEC] = "character, say hex and decimal", 291 [MSG_FUNCNAME_CHAR_NEXT] = "character, say next", 292 [MSG_FUNCNAME_CHAR_PHONETIC] = "character, say phonetic", 293 [MSG_FUNCNAME_CHAR_PREVIOUS] = "character, say previous", 294 [MSG_FUNCNAME_CURSOR_PARK] = "cursor park", 295 [MSG_FUNCNAME_CUT] = "cut", 296 [MSG_FUNCNAME_EDIT_DELIM] = "edit delimiters", 297 [MSG_FUNCNAME_EDIT_EXNUM] = "edit exnum", 298 [MSG_FUNCNAME_EDIT_MOST] = "edit most", 299 [MSG_FUNCNAME_EDIT_REPEATS] = "edit repeats", 300 [MSG_FUNCNAME_EDIT_SOME] = "edit some", 301 [MSG_FUNCNAME_GOTO] = "go to", 302 [MSG_FUNCNAME_GOTO_BOTTOM] = "go to bottom edge", 303 [MSG_FUNCNAME_GOTO_LEFT] = "go to left edge", 304 [MSG_FUNCNAME_GOTO_RIGHT] = "go to right edge", 305 [MSG_FUNCNAME_GOTO_TOP] = "go to top edge", 306 [MSG_FUNCNAME_HELP] = "help", 307 [MSG_FUNCNAME_LINE_SAY_CURRENT] = "line, say current", 308 [MSG_FUNCNAME_LINE_SAY_NEXT] = "line, say next", 309 [MSG_FUNCNAME_LINE_SAY_PREVIOUS] = "line, say previous", 310 [MSG_FUNCNAME_LINE_SAY_WITH_INDENT] = "line, say with indent", 311 [MSG_FUNCNAME_PASTE] = "paste", 312 [MSG_FUNCNAME_PITCH_DEC] = "pitch decrement", 313 [MSG_FUNCNAME_PITCH_INC] = "pitch increment", 314 [MSG_FUNCNAME_PUNC_DEC] = "punctuation decrement", 315 [MSG_FUNCNAME_PUNC_INC] = "punctuation increment", 316 [MSG_FUNCNAME_PUNC_LEVEL_DEC] = "punc level decrement", 317 [MSG_FUNCNAME_PUNC_LEVEL_INC] = "punc level increment", 318 [MSG_FUNCNAME_QUIET] = "quiet", 319 [MSG_FUNCNAME_RATE_DEC] = "rate decrement", 320 [MSG_FUNCNAME_RATE_INC] = "rate increment", 321 [MSG_FUNCNAME_READING_PUNC_DEC] = "reading punctuation decrement", 322 [MSG_FUNCNAME_READING_PUNC_INC] = "reading punctuation increment", 323 [MSG_FUNCNAME_SAY_ATTRIBUTES] = "say attributes", 324 [MSG_FUNCNAME_SAY_FROM_LEFT] = "say from left", 325 [MSG_FUNCNAME_SAY_FROM_TOP] = "say from top", 326 [MSG_FUNCNAME_SAY_POSITION] = "say position", 327 [MSG_FUNCNAME_SAY_SCREEN] = "say screen", 328 [MSG_FUNCNAME_SAY_TO_BOTTOM] = "say to bottom", 329 [MSG_FUNCNAME_SAY_TO_RIGHT] = "say to right", 330 [MSG_FUNCNAME_SPEAKUP] = "speakup", 331 [MSG_FUNCNAME_SPEAKUP_LOCK] = "speakup lock", 332 [MSG_FUNCNAME_SPEAKUP_OFF] = "speakup off", 333 [MSG_FUNCNAME_SPEECH_KILL] = "speech kill", 334 [MSG_FUNCNAME_SPELL_DELAY_DEC] = "spell delay decrement", 335 [MSG_FUNCNAME_SPELL_DELAY_INC] = "spell delay increment", 336 [MSG_FUNCNAME_SPELL_WORD] = "spell word", 337 [MSG_FUNCNAME_SPELL_WORD_PHONETICALLY] = "spell word phoneticly", 338 [MSG_FUNCNAME_TONE_DEC] = "tone decrement", 339 [MSG_FUNCNAME_TONE_INC] = "tone increment", 340 [MSG_FUNCNAME_VOICE_DEC] = "voice decrement", 341 [MSG_FUNCNAME_VOICE_INC] = "voice increment", 342 [MSG_FUNCNAME_VOLUME_DEC] = "volume decrement", 343 [MSG_FUNCNAME_VOLUME_INC] = "volume increment", 344 [MSG_FUNCNAME_WINDOW_CLEAR] = "window, clear", 345 [MSG_FUNCNAME_WINDOW_SAY] = "window, say", 346 [MSG_FUNCNAME_WINDOW_SET] = "window, set", 347 [MSG_FUNCNAME_WINDOW_SILENCE] = "window, silence", 348 [MSG_FUNCNAME_WORD_SAY_CURRENT] = "word, say current", 349 [MSG_FUNCNAME_WORD_SAY_NEXT] = "word, say next", 350 [MSG_FUNCNAME_WORD_SAY_PREVIOUS] = "word, say previous", 351}; 352 353static struct msg_group_t all_groups[] = { 354 { 355 .name = "ctl_keys", 356 .start = MSG_CTL_START, 357 .end = MSG_CTL_END, 358 }, 359 { 360 .name = "colors", 361 .start = MSG_COLORS_START, 362 .end = MSG_COLORS_END, 363 }, 364 { 365 .name = "formatted", 366 .start = MSG_FORMATTED_START, 367 .end = MSG_FORMATTED_END, 368 }, 369 { 370 .name = "function_names", 371 .start = MSG_FUNCNAMES_START, 372 .end = MSG_FUNCNAMES_END, 373 }, 374 { 375 .name = "key_names", 376 .start = MSG_KEYNAMES_START, 377 .end = MSG_KEYNAMES_END, 378 }, 379 { 380 .name = "announcements", 381 .start = MSG_ANNOUNCEMENTS_START, 382 .end = MSG_ANNOUNCEMENTS_END, 383 }, 384 { 385 .name = "states", 386 .start = MSG_STATES_START, 387 .end = MSG_STATES_END, 388 }, 389}; 390 391static const int num_groups = sizeof(all_groups) / sizeof(struct msg_group_t); 392 393char *spk_msg_get(enum msg_index_t index) 394{ 395 char *ch; 396 397 ch = speakup_msgs[index]; 398 return ch; 399} 400 401/* 402 * Function: next_specifier 403 * Finds the start of the next format specifier in the argument string. 404 * Return value: pointer to start of format 405 * specifier, or NULL if no specifier exists. 406*/ 407static char *next_specifier(char *input) 408{ 409 int found = 0; 410 char *next_percent = input; 411 412 while ((next_percent != NULL) && !found) { 413 next_percent = strchr(next_percent, '%'); 414 if (next_percent != NULL) { 415 /* skip over doubled percent signs */ 416 while ((next_percent[0] == '%') 417 && (next_percent[1] == '%')) 418 next_percent += 2; 419 if (*next_percent == '%') 420 found = 1; 421 else if (*next_percent == '\0') 422 next_percent = NULL; 423 } 424 } 425 426 return next_percent; 427} 428 429/* Skip over 0 or more flags. */ 430static char *skip_flags(char *input) 431{ 432 while ((*input != '\0') && strchr(" 0+-#", *input)) 433 input++; 434 return input; 435} 436 437/* Skip over width.precision, if it exists. */ 438static char *skip_width(char *input) 439{ 440 while (isdigit(*input)) 441 input++; 442 if (*input == '.') { 443 input++; 444 while (isdigit(*input)) 445 input++; 446 } 447 return input; 448} 449 450/* 451 * Skip past the end of the conversion part. 452 * Note that this code only accepts a handful of conversion specifiers: 453 * c d s x and ld. Not accidental; these are exactly the ones used in 454 * the default group of formatted messages. 455*/ 456static char *skip_conversion(char *input) 457{ 458 if ((input[0] == 'l') && (input[1] == 'd')) 459 input += 2; 460 else if ((*input != '\0') && strchr("cdsx", *input)) 461 input++; 462 return input; 463} 464 465/* 466 * Function: find_specifier_end 467 * Return a pointer to the end of the format specifier. 468*/ 469static char *find_specifier_end(char *input) 470{ 471 input++; /* Advance over %. */ 472 input = skip_flags(input); 473 input = skip_width(input); 474 input = skip_conversion(input); 475 return input; 476} 477 478/* 479 * Function: compare_specifiers 480 * Compare the format specifiers pointed to by *input1 and *input2. 481 * Return 1 if they are the same, 0 otherwise. Advance *input1 and *input2 482 * so that they point to the character following the end of the specifier. 483*/ 484static int compare_specifiers(char **input1, char **input2) 485{ 486 int same = 0; 487 char *end1 = find_specifier_end(*input1); 488 char *end2 = find_specifier_end(*input2); 489 size_t length1 = end1 - *input1; 490 size_t length2 = end2 - *input2; 491 492 if ((length1 == length2) && !memcmp(*input1, *input2, length1)) 493 same = 1; 494 495 *input1 = end1; 496 *input2 = end2; 497 return same; 498} 499 500/* 501 * Function: fmt_validate 502 * Check that two format strings contain the same number of format specifiers, 503 * and that the order of specifiers is the same in both strings. 504 * Return 1 if the condition holds, 0 if it doesn't. 505*/ 506static int fmt_validate(char *template, char *user) 507{ 508 int valid = 1; 509 int still_comparing = 1; 510 char *template_ptr = template; 511 char *user_ptr = user; 512 513 while (still_comparing && valid) { 514 template_ptr = next_specifier(template_ptr); 515 user_ptr = next_specifier(user_ptr); 516 if (template_ptr && user_ptr) { 517 /* Both have at least one more specifier. */ 518 valid = compare_specifiers(&template_ptr, &user_ptr); 519 } else { 520 /* No more format specifiers in one or both strings. */ 521 still_comparing = 0; 522 /* See if one has more specifiers than the other. */ 523 if (template_ptr || user_ptr) 524 valid = 0; 525 } 526 } 527 return valid; 528} 529 530/* 531 * Function: msg_set 532 * Description: Add a user-supplied message to the user_messages array. 533 * The message text is copied to a memory area allocated with kmalloc. 534 * If the function fails, then user_messages is untouched. 535 * Arguments: 536 * - index: a message number, as found in i18n.h. 537 * - text: text of message. Not NUL-terminated. 538 * - length: number of bytes in text. 539 * Failure conditions: 540 * -EINVAL - Invalid format specifiers in formatted message or illegal index. 541 * -ENOMEM - Unable to allocate memory. 542*/ 543ssize_t spk_msg_set(enum msg_index_t index, char *text, size_t length) 544{ 545 int rc = 0; 546 char *newstr = NULL; 547 unsigned long flags; 548 549 if ((index >= MSG_FIRST_INDEX) && (index < MSG_LAST_INDEX)) { 550 newstr = kmalloc(length + 1, GFP_KERNEL); 551 if (newstr) { 552 memcpy(newstr, text, length); 553 newstr[length] = '\0'; 554 if ((index >= MSG_FORMATTED_START 555 && index <= MSG_FORMATTED_END) 556 && !fmt_validate(speakup_default_msgs[index], 557 newstr)) { 558 kfree(newstr); 559 return -EINVAL; 560 } 561 spin_lock_irqsave(&speakup_info.spinlock, flags); 562 if (speakup_msgs[index] != speakup_default_msgs[index]) 563 kfree(speakup_msgs[index]); 564 speakup_msgs[index] = newstr; 565 spin_unlock_irqrestore(&speakup_info.spinlock, flags); 566 } else { 567 rc = -ENOMEM; 568 } 569 } else { 570 rc = -EINVAL; 571 } 572 return rc; 573} 574 575/* 576 * Find a message group, given its name. Return a pointer to the structure 577 * if found, or NULL otherwise. 578*/ 579struct msg_group_t *spk_find_msg_group(const char *group_name) 580{ 581 struct msg_group_t *group = NULL; 582 int i; 583 584 for (i = 0; i < num_groups; i++) { 585 if (!strcmp(all_groups[i].name, group_name)) { 586 group = &all_groups[i]; 587 break; 588 } 589 } 590 return group; 591} 592 593void spk_reset_msg_group(struct msg_group_t *group) 594{ 595 unsigned long flags; 596 enum msg_index_t i; 597 598 spin_lock_irqsave(&speakup_info.spinlock, flags); 599 600 for (i = group->start; i <= group->end; i++) { 601 if (speakup_msgs[i] != speakup_default_msgs[i]) 602 kfree(speakup_msgs[i]); 603 speakup_msgs[i] = speakup_default_msgs[i]; 604 } 605 spin_unlock_irqrestore(&speakup_info.spinlock, flags); 606} 607 608/* Called at initialization time, to establish default messages. */ 609void spk_initialize_msgs(void) 610{ 611 memcpy(speakup_msgs, speakup_default_msgs, 612 sizeof(speakup_default_msgs)); 613} 614 615/* Free user-supplied strings when module is unloaded: */ 616void spk_free_user_msgs(void) 617{ 618 enum msg_index_t index; 619 unsigned long flags; 620 621 spin_lock_irqsave(&speakup_info.spinlock, flags); 622 for (index = MSG_FIRST_INDEX; index < MSG_LAST_INDEX; index++) { 623 if (speakup_msgs[index] != speakup_default_msgs[index]) { 624 kfree(speakup_msgs[index]); 625 speakup_msgs[index] = speakup_default_msgs[index]; 626 } 627 } 628 spin_unlock_irqrestore(&speakup_info.spinlock, flags); 629} 630