Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 1 | /* Copyright 1996-2005,2007-2009,2011 Alain Knaff. |
| 2 | * This file is part of mtools. |
| 3 | * |
| 4 | * Mtools is free software: you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation, either version 3 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * Mtools is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with Mtools. If not, see <http://www.gnu.org/licenses/>. |
| 16 | * |
| 17 | */ |
| 18 | #include "sysincludes.h" |
| 19 | #include "mtools.h" |
| 20 | #include "codepage.h" |
| 21 | #include "mtoolsPaths.h" |
| 22 | |
| 23 | /* global variables */ |
| 24 | /* they are not really harmful here, because there is only one configuration |
| 25 | * file per invocations */ |
| 26 | |
| 27 | #define MAX_LINE_LEN 256 |
| 28 | |
| 29 | /* scanner */ |
| 30 | static char buffer[MAX_LINE_LEN+1]; /* buffer for the whole line */ |
| 31 | static char *pos; /* position in line */ |
| 32 | static char *token; /* last scanned token */ |
| 33 | static size_t token_length; /* length of the token */ |
| 34 | static FILE *fp; /* file pointer for configuration file */ |
| 35 | static int linenumber; /* current line number. Only used for printing |
| 36 | * error messages */ |
| 37 | static int lastTokenLinenumber; /* line numnber for last token */ |
| 38 | static const char *filename=NULL; /* current file name. Used for printing |
| 39 | * error messages, and for storing in |
| 40 | * the device definition (mtoolstest) */ |
| 41 | static int file_nr=0; |
| 42 | |
| 43 | |
| 44 | static unsigned int flag_mask; /* mask of currently set flags */ |
| 45 | |
| 46 | /* devices */ |
| 47 | static unsigned int cur_devs; /* current number of defined devices */ |
| 48 | static int cur_dev; /* device being filled in. If negative, none */ |
| 49 | static int trusted=0; /* is the currently parsed device entry trusted? */ |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 50 | static unsigned int nr_dev; /* number of devices that the current table can |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 51 | hold */ |
| 52 | struct device *devices; /* the device table */ |
| 53 | static int token_nr; /* number of tokens in line */ |
| 54 | |
| 55 | static char default_drive='\0'; /* default drive */ |
| 56 | |
| 57 | /* "environment" variables */ |
| 58 | unsigned int mtools_skip_check=0; |
| 59 | unsigned int mtools_fat_compatibility=0; |
| 60 | unsigned int mtools_ignore_short_case=0; |
| 61 | uint8_t mtools_rate_0=0; |
| 62 | uint8_t mtools_rate_any=0; |
| 63 | unsigned int mtools_no_vfat=0; |
| 64 | unsigned int mtools_numeric_tail=1; |
| 65 | unsigned int mtools_dotted_dir=0; |
| 66 | unsigned int mtools_twenty_four_hour_clock=1; |
| 67 | unsigned int mtools_lock_timeout=30; |
| 68 | unsigned int mtools_default_codepage=850; |
| 69 | const char *mtools_date_string="yyyy-mm-dd"; |
| 70 | char *country_string=0; |
| 71 | |
| 72 | typedef struct switches_l { |
| 73 | const char *name; |
| 74 | caddr_t address; |
| 75 | enum { |
| 76 | T_INT, |
| 77 | T_STRING, |
| 78 | T_UINT, |
| 79 | T_UINT8, |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 80 | T_UINT16, |
| 81 | T_UQSTRING |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 82 | } type; |
| 83 | } switches_t; |
| 84 | |
| 85 | static switches_t global_switches[] = { |
| 86 | { "MTOOLS_LOWER_CASE", (caddr_t) & mtools_ignore_short_case, T_UINT }, |
| 87 | { "MTOOLS_FAT_COMPATIBILITY", (caddr_t) & mtools_fat_compatibility, T_UINT }, |
| 88 | { "MTOOLS_SKIP_CHECK", (caddr_t) & mtools_skip_check, T_UINT }, |
| 89 | { "MTOOLS_NO_VFAT", (caddr_t) & mtools_no_vfat, T_UINT }, |
| 90 | { "MTOOLS_RATE_0", (caddr_t) &mtools_rate_0, T_UINT8 }, |
| 91 | { "MTOOLS_RATE_ANY", (caddr_t) &mtools_rate_any, T_UINT8 }, |
| 92 | { "MTOOLS_NAME_NUMERIC_TAIL", (caddr_t) &mtools_numeric_tail, T_UINT }, |
| 93 | { "MTOOLS_DOTTED_DIR", (caddr_t) &mtools_dotted_dir, T_UINT }, |
| 94 | { "MTOOLS_TWENTY_FOUR_HOUR_CLOCK", |
| 95 | (caddr_t) &mtools_twenty_four_hour_clock, T_UINT }, |
| 96 | { "MTOOLS_DATE_STRING", |
| 97 | (caddr_t) &mtools_date_string, T_STRING }, |
| 98 | { "MTOOLS_LOCK_TIMEOUT", (caddr_t) &mtools_lock_timeout, T_UINT }, |
| 99 | { "DEFAULT_CODEPAGE", (caddr_t) &mtools_default_codepage, T_UINT } |
| 100 | }; |
| 101 | |
| 102 | typedef struct { |
| 103 | const char *name; |
| 104 | unsigned int flag; |
| 105 | } flags_t; |
| 106 | |
| 107 | static flags_t openflags[] = { |
| 108 | #ifdef O_SYNC |
| 109 | { "sync", O_SYNC }, |
| 110 | #endif |
| 111 | #ifdef O_NDELAY |
| 112 | { "nodelay", O_NDELAY }, |
| 113 | #endif |
| 114 | #ifdef O_EXCL |
| 115 | { "exclusive", O_EXCL }, |
| 116 | #endif |
| 117 | { "none", 0 } /* hack for those compilers that choke on commas |
| 118 | * after the last element of an array */ |
| 119 | }; |
| 120 | |
| 121 | static flags_t misc_flags[] = { |
| 122 | #ifdef USE_XDF |
| 123 | { "use_xdf", USE_XDF_FLAG }, |
| 124 | #endif |
| 125 | { "scsi", SCSI_FLAG }, |
| 126 | { "nolock", NOLOCK_FLAG }, |
| 127 | { "mformat_only", MFORMAT_ONLY_FLAG }, |
| 128 | { "filter", FILTER_FLAG }, |
| 129 | { "privileged", PRIV_FLAG }, |
| 130 | { "vold", VOLD_FLAG }, |
| 131 | { "remote", FLOPPYD_FLAG }, |
| 132 | { "swap", SWAP_FLAG }, |
| 133 | }; |
| 134 | |
| 135 | static struct { |
| 136 | const char *name; |
| 137 | signed char fat_bits; |
| 138 | unsigned int tracks; |
| 139 | unsigned short heads; |
| 140 | unsigned short sectors; |
| 141 | } default_formats[] = { |
| 142 | { "hd514", 12, 80, 2, 15 }, |
| 143 | { "high-density-5-1/4", 12, 80, 2, 15 }, |
| 144 | { "1.2m", 12, 80, 2, 15 }, |
| 145 | |
| 146 | { "hd312", 12, 80, 2, 18 }, |
| 147 | { "high-density-3-1/2", 12, 80, 2, 18 }, |
| 148 | { "1.44m", 12, 80, 2, 18 }, |
| 149 | |
| 150 | { "dd312", 12, 80, 2, 9 }, |
| 151 | { "double-density-3-1/2", 12, 80, 2, 9 }, |
| 152 | { "720k", 12, 80, 2, 9 }, |
| 153 | |
| 154 | { "dd514", 12, 40, 2, 9 }, |
| 155 | { "double-density-5-1/4", 12, 40, 2, 9 }, |
| 156 | { "360k", 12, 40, 2, 9 }, |
| 157 | |
| 158 | { "320k", 12, 40, 2, 8 }, |
| 159 | { "180k", 12, 40, 1, 9 }, |
| 160 | { "160k", 12, 40, 1, 8 } |
| 161 | }; |
| 162 | |
| 163 | #define OFFS(x) ((caddr_t)&((struct device *)0)->x) |
| 164 | |
| 165 | static switches_t dswitches[]= { |
| 166 | { "FILE", OFFS(name), T_STRING }, |
| 167 | { "OFFSET", OFFS(offset), T_UINT }, |
| 168 | { "PARTITION", OFFS(partition), T_UINT }, |
| 169 | { "FAT", OFFS(fat_bits), T_INT }, |
| 170 | { "FAT_BITS", OFFS(fat_bits), T_UINT }, |
| 171 | { "MODE", OFFS(mode), T_UINT }, |
| 172 | { "TRACKS", OFFS(tracks), T_UINT }, |
| 173 | { "CYLINDERS", OFFS(tracks), T_UINT }, |
| 174 | { "HEADS", OFFS(heads), T_UINT16 }, |
| 175 | { "SECTORS", OFFS(sectors), T_UINT16 }, |
| 176 | { "HIDDEN", OFFS(hidden), T_UINT }, |
| 177 | { "PRECMD", OFFS(precmd), T_STRING }, |
| 178 | { "BLOCKSIZE", OFFS(blocksize), T_UINT }, |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 179 | { "CODEPAGE", OFFS(codepage), T_UINT }, |
| 180 | { "DATA_MAP", OFFS(data_map), T_UQSTRING } |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 181 | }; |
| 182 | |
| 183 | #if (defined HAVE_TOUPPER_L || defined HAVE_STRNCASECMP_L) |
| 184 | static locale_t C=NULL; |
| 185 | |
| 186 | static void init_canon(void) { |
| 187 | if(C == NULL) |
| 188 | C = newlocale(LC_CTYPE_MASK, "C", NULL); |
| 189 | } |
| 190 | #endif |
| 191 | |
| 192 | #ifdef HAVE_TOUPPER_L |
| 193 | static int canon_drv(int drive) { |
| 194 | int ret; |
| 195 | init_canon(); |
| 196 | ret = toupper_l(drive, C); |
| 197 | return ret; |
| 198 | } |
| 199 | #else |
| 200 | static int canon_drv(int drive) { |
| 201 | return toupper(drive); |
| 202 | } |
| 203 | #endif |
| 204 | |
| 205 | #ifdef HAVE_STRNCASECMP_L |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 206 | static int cmp_tok(const char *a, const char *b, size_t len) { |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 207 | init_canon(); |
| 208 | return strncasecmp_l(a, b, len, C); |
| 209 | } |
| 210 | #else |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 211 | static int cmp_tok(const char *a, const char *b, size_t len) { |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 212 | return strncasecmp(a, b, len); |
| 213 | } |
| 214 | #endif |
| 215 | |
| 216 | |
| 217 | static char ch_canon_drv(char drive) { |
| 218 | return (char) canon_drv( (unsigned char) drive); |
| 219 | } |
| 220 | |
| 221 | static void maintain_default_drive(char drive) |
| 222 | { |
| 223 | if(default_drive == ':') |
| 224 | return; /* we have an image */ |
| 225 | if(default_drive == '\0' || |
| 226 | default_drive > drive) |
| 227 | default_drive = drive; |
| 228 | } |
| 229 | |
| 230 | char get_default_drive(void) |
| 231 | { |
| 232 | if(default_drive != '\0') |
| 233 | return default_drive; |
| 234 | else |
| 235 | return 'A'; |
| 236 | } |
| 237 | |
| 238 | static void syntax(const char *msg, int thisLine) NORETURN; |
| 239 | static void syntax(const char *msg, int thisLine) |
| 240 | { |
| 241 | char drive='\0'; |
| 242 | if(thisLine) |
| 243 | lastTokenLinenumber = linenumber; |
| 244 | if(cur_dev >= 0) |
| 245 | drive = devices[cur_dev].drive; |
| 246 | fprintf(stderr,"Syntax error at line %d ", lastTokenLinenumber); |
| 247 | if(drive) fprintf(stderr, "for drive %c: ", drive); |
| 248 | if(token) fprintf(stderr, "column %ld ", (long)(token - buffer)); |
| 249 | fprintf(stderr, "in file %s: %s", filename, msg); |
| 250 | if(errno != 0) |
| 251 | fprintf(stderr, " (%s)", strerror(errno)); |
| 252 | fprintf(stderr, "\n"); |
| 253 | exit(1); |
| 254 | } |
| 255 | |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 256 | #pragma GCC diagnostic push |
| 257 | #pragma GCC diagnostic ignored "-Wcast-align" |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 258 | static void get_env_conf(void) |
| 259 | { |
| 260 | char *s; |
| 261 | unsigned int i; |
| 262 | |
| 263 | for(i=0; i< sizeof(global_switches) / sizeof(*global_switches); i++) { |
| 264 | s = getenv(global_switches[i].name); |
| 265 | if(s) { |
| 266 | errno = 0; |
| 267 | switch(global_switches[i].type) { |
| 268 | case T_INT: |
| 269 | * ((int *)global_switches[i].address) = strtoi(s,0,0); |
| 270 | break; |
| 271 | case T_UINT: |
| 272 | * ((unsigned int *)global_switches[i].address) = strtoui(s,0,0); |
| 273 | break; |
| 274 | case T_UINT8: |
| 275 | * ((uint8_t *)global_switches[i].address) = strtou8(s,0,0); |
| 276 | break; |
| 277 | case T_UINT16: |
| 278 | * ((uint16_t *)global_switches[i].address) = strtou16(s,0,0); |
| 279 | break; |
| 280 | case T_STRING: |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 281 | case T_UQSTRING: |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 282 | * ((char **)global_switches[i].address) = s; |
| 283 | break; |
| 284 | } |
| 285 | if(errno != 0) { |
| 286 | fprintf(stderr, "Bad number %s for %s (%s)\n", s, |
| 287 | global_switches[i].name, |
| 288 | strerror(errno)); |
| 289 | exit(1); |
| 290 | } |
| 291 | } |
| 292 | } |
| 293 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 294 | #pragma GCC diagnostic pop |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 295 | |
| 296 | static int mtools_getline(void) |
| 297 | { |
| 298 | if(!fp || !fgets(buffer, MAX_LINE_LEN+1, fp)) |
| 299 | return -1; |
| 300 | linenumber++; |
| 301 | pos = buffer; |
| 302 | token_nr = 0; |
| 303 | buffer[MAX_LINE_LEN] = '\0'; |
| 304 | if(strlen(buffer) == MAX_LINE_LEN) |
| 305 | syntax("line too long", 1); |
| 306 | return 0; |
| 307 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 308 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 309 | static void skip_junk(int expect) |
| 310 | { |
| 311 | lastTokenLinenumber = linenumber; |
| 312 | while(!pos || !*pos || strchr(" #\n\t", *pos)) { |
| 313 | if(!pos || !*pos || *pos == '#') { |
| 314 | if(mtools_getline()) { |
| 315 | pos = 0; |
| 316 | if(expect) |
| 317 | syntax("end of file unexpected", 1); |
| 318 | return; |
| 319 | } |
| 320 | } else |
| 321 | pos++; |
| 322 | } |
| 323 | token_nr++; |
| 324 | } |
| 325 | |
| 326 | /* get the next token */ |
| 327 | static char *get_next_token(void) |
| 328 | { |
| 329 | skip_junk(0); |
| 330 | if(!pos) { |
| 331 | token_length = 0; |
| 332 | token = 0; |
| 333 | return 0; |
| 334 | } |
| 335 | token = pos; |
| 336 | token_length = strcspn(token, " \t\n#:="); |
| 337 | pos += token_length; |
| 338 | return token; |
| 339 | } |
| 340 | |
| 341 | static int match_token(const char *template) |
| 342 | { |
| 343 | return (strlen(template) == token_length && |
| 344 | !cmp_tok(template, token, token_length)); |
| 345 | } |
| 346 | |
| 347 | static void expect_char(char c) |
| 348 | { |
| 349 | char buf[11]; |
| 350 | |
| 351 | skip_junk(1); |
| 352 | if(*pos != c) { |
| 353 | sprintf(buf, "expected %c", c); |
| 354 | syntax(buf, 1); |
| 355 | } |
| 356 | pos++; |
| 357 | } |
| 358 | |
| 359 | static char *get_string(void) |
| 360 | { |
| 361 | char *end, *str; |
| 362 | |
| 363 | skip_junk(1); |
| 364 | if(*pos != '"') |
| 365 | syntax(" \" expected", 0); |
| 366 | str = pos+1; |
| 367 | end = strchr(str, '\"'); |
| 368 | if(!end) |
| 369 | syntax("unterminated string constant", 1); |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 370 | str = strndup(str, ptrdiff(end, str)); |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 371 | pos = end+1; |
| 372 | return str; |
| 373 | } |
| 374 | |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 375 | static char *get_unquoted_string(void) |
| 376 | { |
| 377 | if(*pos == '"') |
| 378 | return get_string(); |
| 379 | else { |
| 380 | char *str=get_next_token(); |
| 381 | return strndup(str, token_length); |
| 382 | } |
| 383 | } |
| 384 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 385 | static unsigned long get_unumber(unsigned long max) |
| 386 | { |
| 387 | char *last; |
| 388 | unsigned long n; |
| 389 | |
| 390 | skip_junk(1); |
| 391 | last = pos; |
| 392 | n=strtoul(pos, &pos, 0); |
| 393 | if(errno) |
| 394 | syntax("bad number", 0); |
| 395 | if(last == pos) |
| 396 | syntax("numeral expected", 0); |
| 397 | if(n > max) |
| 398 | syntax("number too big", 0); |
| 399 | pos++; |
| 400 | token_nr++; |
| 401 | return n; |
| 402 | } |
| 403 | |
| 404 | static int get_number(void) |
| 405 | { |
| 406 | char *last; |
| 407 | int n; |
| 408 | |
| 409 | skip_junk(1); |
| 410 | last = pos; |
| 411 | n=(int) strtol(pos, &pos, 0); |
| 412 | if(errno) |
| 413 | syntax("bad number", 0); |
| 414 | if(last == pos) |
| 415 | syntax("numeral expected", 0); |
| 416 | pos++; |
| 417 | token_nr++; |
| 418 | return n; |
| 419 | } |
| 420 | |
| 421 | /* purge all entries pertaining to a given drive from the table */ |
| 422 | static void purge(char drive, int fn) |
| 423 | { |
| 424 | unsigned int i, j; |
| 425 | |
| 426 | drive = ch_canon_drv(drive); |
| 427 | for(j=0, i=0; i < cur_devs; i++) { |
| 428 | if(devices[i].drive != drive || |
| 429 | devices[i].file_nr == fn) |
| 430 | devices[j++] = devices[i]; |
| 431 | } |
| 432 | cur_devs = j; |
| 433 | } |
| 434 | |
| 435 | static void grow(void) |
| 436 | { |
| 437 | if(cur_devs >= nr_dev - 2) { |
| 438 | nr_dev = (cur_devs + 2) << 1; |
| 439 | if(!(devices=Grow(devices, nr_dev, struct device))){ |
| 440 | printOom(); |
| 441 | exit(1); |
| 442 | } |
| 443 | } |
| 444 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 445 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 446 | |
| 447 | static void init_drive(void) |
| 448 | { |
| 449 | memset((char *)&devices[cur_dev], 0, sizeof(struct device)); |
| 450 | devices[cur_dev].ssize = 2; |
| 451 | } |
| 452 | |
| 453 | /* prepends a device to the table */ |
| 454 | static void prepend(void) |
| 455 | { |
| 456 | unsigned int i; |
| 457 | |
| 458 | grow(); |
| 459 | for(i=cur_devs; i>0; i--) |
| 460 | devices[i] = devices[i-1]; |
| 461 | cur_dev = 0; |
| 462 | cur_devs++; |
| 463 | init_drive(); |
| 464 | } |
| 465 | |
| 466 | |
| 467 | /* appends a device to the table */ |
| 468 | static void append(void) |
| 469 | { |
| 470 | grow(); |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 471 | cur_dev = (int) cur_devs; |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 472 | cur_devs++; |
| 473 | init_drive(); |
| 474 | } |
| 475 | |
| 476 | |
| 477 | static void finish_drive_clause(void) |
| 478 | { |
| 479 | if(cur_dev == -1) { |
| 480 | trusted = 0; |
| 481 | return; |
| 482 | } |
| 483 | if(!devices[cur_dev].name) |
| 484 | syntax("missing filename", 0); |
| 485 | if(devices[cur_dev].tracks || |
| 486 | devices[cur_dev].heads || |
| 487 | devices[cur_dev].sectors) { |
| 488 | if(!devices[cur_dev].tracks || |
| 489 | !devices[cur_dev].heads || |
| 490 | !devices[cur_dev].sectors) |
| 491 | syntax("incomplete geometry: either indicate all of track/heads/sectors or none of them", 0); |
| 492 | if(!(devices[cur_dev].misc_flags & |
| 493 | (MFORMAT_ONLY_FLAG | FILTER_FLAG))) |
| 494 | syntax("if you supply a geometry, you also must supply one of the `mformat_only' or `filter' flags", 0); |
| 495 | } |
| 496 | devices[cur_dev].file_nr = file_nr; |
| 497 | devices[cur_dev].cfg_filename = filename; |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 498 | if(!trusted && (devices[cur_dev].misc_flags & PRIV_FLAG)) { |
| 499 | fprintf(stderr, |
| 500 | "Warning: privileged flag ignored for drive %c: defined in file %s\n", |
| 501 | canon_drv(devices[cur_dev].drive), filename); |
| 502 | devices[cur_dev].misc_flags &= ~PRIV_FLAG; |
| 503 | } |
| 504 | trusted = 0; |
| 505 | cur_dev = -1; |
| 506 | } |
| 507 | |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 508 | #pragma GCC diagnostic push |
| 509 | #pragma GCC diagnostic ignored "-Wcast-align" |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 510 | static int set_var(struct switches_l *switches, int nr, |
| 511 | caddr_t base_address) |
| 512 | { |
| 513 | int i; |
| 514 | for(i=0; i < nr; i++) { |
| 515 | if(match_token(switches[i].name)) { |
| 516 | expect_char('='); |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 517 | /* All pointers cast back to pointers with alignment |
| 518 | * constraints were such pointers with alignment |
| 519 | * constraints initially, thus they do indeed fit the |
| 520 | * constraint */ |
| 521 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 522 | if(switches[i].type == T_UINT) |
| 523 | * ((unsigned int *)((long)switches[i].address+base_address)) = |
| 524 | (unsigned int) get_unumber(UINT_MAX); |
| 525 | else if(switches[i].type == T_UINT8) |
| 526 | * ((uint8_t *)((long)switches[i].address+base_address)) = |
| 527 | (uint8_t) get_unumber(UINT8_MAX); |
| 528 | else if(switches[i].type == T_UINT16) |
| 529 | * ((uint16_t *)((long)switches[i].address+base_address)) = |
| 530 | (uint16_t) get_unumber(UINT16_MAX); |
| 531 | else if(switches[i].type == T_INT) |
| 532 | * ((int *)((long)switches[i].address+base_address)) = |
| 533 | get_number(); |
| 534 | else if (switches[i].type == T_STRING) |
| 535 | * ((char**)((long)switches[i].address+base_address))= |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 536 | get_string(); |
| 537 | else if (switches[i].type == T_UQSTRING) |
| 538 | * ((char**)((long)switches[i].address+base_address))= |
| 539 | get_unquoted_string(); |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 540 | return 0; |
| 541 | } |
| 542 | } |
| 543 | return 1; |
| 544 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 545 | #pragma GCC diagnostic pop |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 546 | |
| 547 | static int set_openflags(struct device *dev) |
| 548 | { |
| 549 | unsigned int i; |
| 550 | |
| 551 | for(i=0; i < sizeof(openflags) / sizeof(*openflags); i++) { |
| 552 | if(match_token(openflags[i].name)) { |
| 553 | dev->mode |= openflags[i].flag; |
| 554 | return 0; |
| 555 | } |
| 556 | } |
| 557 | return 1; |
| 558 | } |
| 559 | |
| 560 | static int set_misc_flags(struct device *dev) |
| 561 | { |
| 562 | unsigned int i; |
| 563 | for(i=0; i < sizeof(misc_flags) / sizeof(*misc_flags); i++) { |
| 564 | if(match_token(misc_flags[i].name)) { |
| 565 | flag_mask |= misc_flags[i].flag; |
| 566 | skip_junk(0); |
| 567 | if(pos && *pos == '=') { |
| 568 | pos++; |
| 569 | switch(get_number()) { |
| 570 | case 0: |
| 571 | return 0; |
| 572 | case 1: |
| 573 | break; |
| 574 | default: |
| 575 | syntax("expected 0 or 1", 0); |
| 576 | } |
| 577 | } |
| 578 | dev->misc_flags |= misc_flags[i].flag; |
| 579 | return 0; |
| 580 | } |
| 581 | } |
| 582 | return 1; |
| 583 | } |
| 584 | |
| 585 | static int set_def_format(struct device *dev) |
| 586 | { |
| 587 | unsigned int i; |
| 588 | |
| 589 | for(i=0; i < sizeof(default_formats)/sizeof(*default_formats); i++) { |
| 590 | if(match_token(default_formats[i].name)) { |
| 591 | if(!dev->ssize) |
| 592 | dev->ssize = 2; |
| 593 | if(!dev->tracks) |
| 594 | dev->tracks = default_formats[i].tracks; |
| 595 | if(!dev->heads) |
| 596 | dev->heads = default_formats[i].heads; |
| 597 | if(!dev->sectors) |
| 598 | dev->sectors = default_formats[i].sectors; |
| 599 | if(!dev->fat_bits) |
| 600 | dev->fat_bits = default_formats[i].fat_bits; |
| 601 | return 0; |
| 602 | } |
| 603 | } |
| 604 | return 1; |
| 605 | } |
| 606 | |
| 607 | static void parse_all(int privilege); |
| 608 | |
| 609 | void set_cmd_line_image(char *img) { |
| 610 | char *ofsp; |
| 611 | |
| 612 | prepend(); |
| 613 | devices[cur_dev].drive = ':'; |
| 614 | default_drive = ':'; |
| 615 | |
| 616 | ofsp = strstr(img, "@@"); |
| 617 | if (ofsp == NULL) { |
| 618 | /* no separator => no offset */ |
| 619 | devices[cur_dev].name = strdup(img); |
| 620 | devices[cur_dev].offset = 0; |
| 621 | } else { |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 622 | devices[cur_dev].name = strndup(img, ptrdiff(ofsp, img)); |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 623 | devices[cur_dev].offset = str_to_offset(ofsp+2); |
| 624 | } |
| 625 | |
| 626 | devices[cur_dev].fat_bits = 0; |
| 627 | devices[cur_dev].tracks = 0; |
| 628 | devices[cur_dev].heads = 0; |
| 629 | devices[cur_dev].sectors = 0; |
| 630 | if (strchr(devices[cur_dev].name, '|')) { |
| 631 | char *pipechar = strchr(devices[cur_dev].name, '|'); |
| 632 | *pipechar = 0; |
| 633 | strncpy(buffer, pipechar+1, MAX_LINE_LEN); |
| 634 | buffer[MAX_LINE_LEN] = '\0'; |
| 635 | fp = NULL; |
| 636 | filename = "{command line}"; |
| 637 | linenumber = 0; |
| 638 | lastTokenLinenumber = 0; |
| 639 | pos = buffer; |
| 640 | token = 0; |
| 641 | parse_all(0); |
| 642 | } |
| 643 | } |
| 644 | |
| 645 | void check_number_parse_errno(char c, const char *oarg, char *endptr) { |
| 646 | if(endptr && *endptr) { |
| 647 | fprintf(stderr, "Bad number %s\n", oarg); |
| 648 | exit(1); |
| 649 | } |
| 650 | if(errno) { |
| 651 | fprintf(stderr, "Bad number %s for -%c (%s)\n", oarg, |
| 652 | c, strerror(errno)); |
| 653 | exit(1); |
| 654 | } |
| 655 | } |
| 656 | |
| 657 | static uint16_t tou16(int in, const char *comment) { |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 658 | if(in > (int) UINT16_MAX) { |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 659 | fprintf(stderr, "Number of %s %d too big\n", comment, in); |
| 660 | exit(1); |
| 661 | } |
| 662 | if(in < 0) { |
| 663 | fprintf(stderr, "Number of %s %d negative\n", comment, in); |
| 664 | exit(1); |
| 665 | } |
| 666 | return (uint16_t) in; |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 667 | } |
| 668 | |
| 669 | static void parse_old_device_line(char drive) |
| 670 | { |
| 671 | char name[MAXPATHLEN]; |
| 672 | int items; |
| 673 | long offset; |
| 674 | |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 675 | int heads, sectors, tracks; |
| 676 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 677 | /* finish any old drive */ |
| 678 | finish_drive_clause(); |
| 679 | |
| 680 | /* purge out data of old configuration files */ |
| 681 | purge(drive, file_nr); |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 682 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 683 | /* reserve slot */ |
| 684 | append(); |
| 685 | items = sscanf(token,"%c %s %i %i %i %i %li", |
| 686 | &devices[cur_dev].drive,name,&devices[cur_dev].fat_bits, |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 687 | &tracks,&heads,§ors, &offset); |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 688 | devices[cur_dev].heads = tou16(heads, "heads"); |
| 689 | devices[cur_dev].sectors = tou16(sectors, "sectors"); |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 690 | devices[cur_dev].tracks = (unsigned int) tracks; |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 691 | devices[cur_dev].offset = (off_t) offset; |
| 692 | switch(items){ |
| 693 | case 2: |
| 694 | devices[cur_dev].fat_bits = 0; |
| 695 | /* fall thru */ |
| 696 | case 3: |
| 697 | devices[cur_dev].sectors = 0; |
| 698 | devices[cur_dev].heads = 0; |
| 699 | devices[cur_dev].tracks = 0; |
| 700 | /* fall thru */ |
| 701 | case 6: |
| 702 | devices[cur_dev].offset = 0; |
| 703 | /* fall thru */ |
| 704 | default: |
| 705 | break; |
| 706 | case 0: |
| 707 | case 1: |
| 708 | case 4: |
| 709 | case 5: |
| 710 | syntax("bad number of parameters", 1); |
| 711 | } |
| 712 | if(!devices[cur_dev].tracks){ |
| 713 | devices[cur_dev].sectors = 0; |
| 714 | devices[cur_dev].heads = 0; |
| 715 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 716 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 717 | devices[cur_dev].drive = ch_canon_drv(devices[cur_dev].drive); |
| 718 | maintain_default_drive(devices[cur_dev].drive); |
| 719 | if (!(devices[cur_dev].name = strdup(name))) { |
| 720 | printOom(); |
| 721 | exit(1); |
| 722 | } |
| 723 | devices[cur_dev].misc_flags |= MFORMAT_ONLY_FLAG; |
| 724 | finish_drive_clause(); |
| 725 | pos=0; |
| 726 | } |
| 727 | |
| 728 | static int parse_one(int privilege) |
| 729 | { |
| 730 | int action=0; |
| 731 | |
| 732 | get_next_token(); |
| 733 | if(!token) |
| 734 | return 0; |
| 735 | |
| 736 | if((match_token("drive") && ((action = 1)))|| |
| 737 | (match_token("drive+") && ((action = 2))) || |
| 738 | (match_token("+drive") && ((action = 3))) || |
| 739 | (match_token("clear_drive") && ((action = 4))) ) { |
| 740 | /* finish off the previous drive */ |
| 741 | finish_drive_clause(); |
| 742 | |
| 743 | get_next_token(); |
| 744 | if(token_length != 1) |
| 745 | syntax("drive letter expected", 0); |
| 746 | |
| 747 | if(action==1 || action==4) |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 748 | /* replace existing drive */ |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 749 | purge(token[0], file_nr); |
| 750 | if(action==4) |
| 751 | return 1; |
| 752 | if(action==3) |
| 753 | prepend(); |
| 754 | else |
| 755 | append(); |
| 756 | memset((char*)(devices+cur_dev), 0, sizeof(*devices)); |
| 757 | trusted = privilege; |
| 758 | flag_mask = 0; |
| 759 | devices[cur_dev].drive = ch_canon_drv(token[0]); |
| 760 | maintain_default_drive(devices[cur_dev].drive); |
| 761 | expect_char(':'); |
| 762 | return 1; |
| 763 | } |
| 764 | if(token_nr == 1 && token_length == 1) { |
| 765 | parse_old_device_line(token[0]); |
| 766 | return 1; |
| 767 | } |
| 768 | |
| 769 | if((cur_dev < 0 || |
| 770 | (set_var(dswitches, |
| 771 | sizeof(dswitches)/sizeof(*dswitches), |
| 772 | (caddr_t)&devices[cur_dev]) && |
| 773 | set_openflags(&devices[cur_dev]) && |
| 774 | set_misc_flags(&devices[cur_dev]) && |
| 775 | set_def_format(&devices[cur_dev]))) && |
| 776 | set_var(global_switches, |
| 777 | sizeof(global_switches)/sizeof(*global_switches), 0)) |
| 778 | syntax("unrecognized keyword", 1); |
| 779 | return 1; |
| 780 | } |
| 781 | |
| 782 | static void parse_all(int privilege) { |
| 783 | errno=0; |
| 784 | while (parse_one(privilege)); |
| 785 | } |
| 786 | |
| 787 | |
| 788 | static int parse(const char *name, int privilege) |
| 789 | { |
| 790 | if(fp) { |
| 791 | fprintf(stderr, "File descriptor already set!\n"); |
| 792 | exit(1); |
| 793 | } |
| 794 | fp = fopen(name, "r"); |
| 795 | if(!fp) |
| 796 | return 0; |
| 797 | file_nr++; |
| 798 | filename = name; /* no strdup needed: although lifetime of variable |
| 799 | exceeds this function (due to dev->cfg_filename), |
| 800 | we know that the name is always either |
| 801 | 1. a constant |
| 802 | 2. a statically allocate buffer |
| 803 | 3. an environment variable that stays unchanged |
| 804 | */ |
| 805 | linenumber = 0; |
| 806 | lastTokenLinenumber = 0; |
| 807 | pos = 0; |
| 808 | token = 0; |
| 809 | cur_dev = -1; /* no current device */ |
| 810 | |
| 811 | parse_all(privilege); |
| 812 | finish_drive_clause(); |
| 813 | fclose(fp); |
| 814 | filename = NULL; |
| 815 | fp = NULL; |
| 816 | return 1; |
| 817 | } |
| 818 | |
| 819 | void read_config(void) |
| 820 | { |
| 821 | char *homedir; |
| 822 | char *envConfFile; |
| 823 | static char conf_file[MAXPATHLEN+sizeof(CFG_FILE1)]; |
| 824 | |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 825 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 826 | /* copy compiled-in devices */ |
| 827 | file_nr = 0; |
| 828 | cur_devs = nr_const_devices; |
| 829 | nr_dev = nr_const_devices + 2; |
| 830 | devices = NewArray(nr_dev, struct device); |
| 831 | if(!devices) { |
| 832 | printOom(); |
| 833 | exit(1); |
| 834 | } |
| 835 | if(nr_const_devices) |
| 836 | memcpy(devices, const_devices, |
| 837 | nr_const_devices*sizeof(struct device)); |
| 838 | |
| 839 | (void) ((parse(CONF_FILE,1) | |
| 840 | parse(LOCAL_CONF_FILE,1) | |
| 841 | parse(SYS_CONF_FILE,1)) || |
| 842 | (parse(OLD_CONF_FILE,1) | |
| 843 | parse(OLD_LOCAL_CONF_FILE,1))); |
| 844 | /* the old-name configuration files only get executed if none of the |
| 845 | * new-name config files were used */ |
| 846 | |
| 847 | homedir = get_homedir(); |
| 848 | if ( homedir ){ |
| 849 | strncpy(conf_file, homedir, MAXPATHLEN ); |
| 850 | conf_file[MAXPATHLEN]='\0'; |
| 851 | strcat( conf_file, CFG_FILE1); |
| 852 | parse(conf_file,0); |
| 853 | } |
| 854 | memset((char *)&devices[cur_devs],0,sizeof(struct device)); |
| 855 | |
| 856 | envConfFile = getenv("MTOOLSRC"); |
| 857 | if(envConfFile) |
| 858 | parse(envConfFile,0); |
| 859 | |
| 860 | /* environmental variables */ |
| 861 | get_env_conf(); |
| 862 | if(mtools_skip_check) |
| 863 | mtools_fat_compatibility=1; |
| 864 | } |
| 865 | |
| 866 | void mtoolstest(int argc, char **argv, int type UNUSEDP) NORETURN; |
| 867 | void mtoolstest(int argc, char **argv, int type UNUSEDP) |
| 868 | { |
| 869 | /* testing purposes only */ |
| 870 | struct device *dev; |
| 871 | char drive='\0'; |
| 872 | |
| 873 | if(argc > 1 && argv[1][0] && argv[1][1] == ':') { |
| 874 | drive = ch_canon_drv(argv[1][0]); |
| 875 | } |
| 876 | |
| 877 | for (dev=devices; dev->name; dev++) { |
| 878 | if(drive && drive != dev->drive) |
| 879 | continue; |
| 880 | printf("drive %c:\n", dev->drive); |
| 881 | printf("\t#fn=%d mode=%d ", |
| 882 | dev->file_nr, dev->mode); |
| 883 | if(dev->cfg_filename) |
| 884 | printf("defined in %s\n", dev->cfg_filename); |
| 885 | else |
| 886 | printf("builtin\n"); |
| 887 | printf("\tfile=\"%s\" fat_bits=%d \n", |
| 888 | dev->name,dev->fat_bits); |
| 889 | printf("\ttracks=%d heads=%d sectors=%d hidden=%d\n", |
| 890 | dev->tracks, dev->heads, dev->sectors, dev->hidden); |
| 891 | printf("\toffset=0x%lx\n", (long) dev->offset); |
| 892 | printf("\tpartition=%d\n", dev->partition); |
| 893 | |
| 894 | if(dev->misc_flags) |
| 895 | printf("\t"); |
| 896 | |
| 897 | if(DO_SWAP(dev)) |
| 898 | printf("swap "); |
| 899 | if(IS_SCSI(dev)) |
| 900 | printf("scsi "); |
| 901 | if(IS_PRIVILEGED(dev)) |
| 902 | printf("privileged"); |
| 903 | if(IS_MFORMAT_ONLY(dev)) |
| 904 | printf("mformat_only "); |
| 905 | if(SHOULD_USE_VOLD(dev)) |
| 906 | printf("vold "); |
| 907 | #ifdef USE_XDF |
| 908 | if(SHOULD_USE_XDF(dev)) |
| 909 | printf("use_xdf "); |
| 910 | #endif |
| 911 | if(dev->misc_flags) |
| 912 | printf("\n"); |
| 913 | |
| 914 | if(dev->mode) |
| 915 | printf("\t"); |
| 916 | #ifdef O_SYNC |
| 917 | if(dev->mode & O_SYNC) |
| 918 | printf("sync "); |
| 919 | #endif |
| 920 | #ifdef O_NDELAY |
| 921 | if((dev->mode & O_NDELAY)) |
| 922 | printf("nodelay "); |
| 923 | #endif |
| 924 | #ifdef O_EXCL |
| 925 | if((dev->mode & O_EXCL)) |
| 926 | printf("exclusive "); |
| 927 | #endif |
| 928 | if(dev->mode) |
| 929 | printf("\n"); |
| 930 | |
| 931 | if(dev->precmd) |
| 932 | printf("\tprecmd=%s\n", dev->precmd); |
| 933 | |
| 934 | printf("\n"); |
| 935 | } |
| 936 | |
| 937 | printf("mtools_fat_compatibility=%d\n",mtools_fat_compatibility); |
| 938 | printf("mtools_skip_check=%d\n",mtools_skip_check); |
| 939 | printf("mtools_lower_case=%d\n",mtools_ignore_short_case); |
| 940 | |
| 941 | exit(0); |
| 942 | } |
| 943 | |
| 944 | /* |
| 945 | * Local Variables: |
| 946 | * c-basic-offset: 4 |
| 947 | * End: |
| 948 | */ |