zic.c revision 1.1.1.9
1 #ifndef lint 2 #ifndef NOID 3 static char elsieid[] = "@(#)zic.c 7.99"; 4 #endif /* !defined NOID */ 5 #endif /* !defined lint */ 6 7 #include "private.h" 8 #include "locale.h" 9 #include "tzfile.h" 10 #ifdef unix 11 #include "sys/stat.h" /* for umask manifest constants */ 12 #endif /* defined unix */ 13 14 /* 15 ** On some ancient hosts, predicates like `isspace(C)' are defined 16 ** only if isascii(C) || C == EOF. Modern hosts obey the C Standard, 17 ** which says they are defined only if C == ((unsigned char) C) || C == EOF. 18 ** Neither the C Standard nor Posix require that `isascii' exist. 19 ** For portability, we check both ancient and modern requirements. 20 ** If isascii is not defined, the isascii check succeeds trivially. 21 */ 22 #include "ctype.h" 23 #ifndef isascii 24 #define isascii(x) 1 25 #endif 26 27 struct rule { 28 const char * r_filename; 29 int r_linenum; 30 const char * r_name; 31 32 int r_loyear; /* for example, 1986 */ 33 int r_hiyear; /* for example, 1986 */ 34 const char * r_yrtype; 35 36 int r_month; /* 0..11 */ 37 38 int r_dycode; /* see below */ 39 int r_dayofmonth; 40 int r_wday; 41 42 long r_tod; /* time from midnight */ 43 int r_todisstd; /* above is standard time if TRUE */ 44 /* or wall clock time if FALSE */ 45 int r_todisgmt; /* above is GMT if TRUE */ 46 /* or local time if FALSE */ 47 long r_stdoff; /* offset from standard time */ 48 const char * r_abbrvar; /* variable part of abbreviation */ 49 50 int r_todo; /* a rule to do (used in outzone) */ 51 time_t r_temp; /* used in outzone */ 52 }; 53 54 /* 55 ** r_dycode r_dayofmonth r_wday 56 */ 57 58 #define DC_DOM 0 /* 1..31 */ /* unused */ 59 #define DC_DOWGEQ 1 /* 1..31 */ /* 0..6 (Sun..Sat) */ 60 #define DC_DOWLEQ 2 /* 1..31 */ /* 0..6 (Sun..Sat) */ 61 62 struct zone { 63 const char * z_filename; 64 int z_linenum; 65 66 const char * z_name; 67 long z_gmtoff; 68 const char * z_rule; 69 const char * z_format; 70 71 long z_stdoff; 72 73 struct rule * z_rules; 74 int z_nrules; 75 76 struct rule z_untilrule; 77 time_t z_untiltime; 78 }; 79 80 extern int getopt P((int argc, char * const argv[], 81 const char * options)); 82 extern int link P((const char * fromname, const char * toname)); 83 extern char * optarg; 84 extern int optind; 85 86 static void addtt P((time_t starttime, int type)); 87 static int addtype P((long gmtoff, const char * abbr, int isdst, 88 int ttisstd, int ttisgmt)); 89 static void leapadd P((time_t t, int positive, int rolling, int count)); 90 static void adjleap P((void)); 91 static void associate P((void)); 92 static int ciequal P((const char * ap, const char * bp)); 93 static void convert P((long val, char * buf)); 94 static void dolink P((const char * fromfile, const char * tofile)); 95 static void doabbr P((char * abbr, const char * format, 96 const char * letters, int isdst)); 97 static void eat P((const char * name, int num)); 98 static void eats P((const char * name, int num, 99 const char * rname, int rnum)); 100 static long eitol P((int i)); 101 static void error P((const char * message)); 102 static char ** getfields P((char * buf)); 103 static long gethms P((const char * string, const char * errstrng, 104 int signable)); 105 static void infile P((const char * filename)); 106 static void inleap P((char ** fields, int nfields)); 107 static void inlink P((char ** fields, int nfields)); 108 static void inrule P((char ** fields, int nfields)); 109 static int inzcont P((char ** fields, int nfields)); 110 static int inzone P((char ** fields, int nfields)); 111 static int inzsub P((char ** fields, int nfields, int iscont)); 112 static int itsabbr P((const char * abbr, const char * word)); 113 static int itsdir P((const char * name)); 114 static int lowerit P((int c)); 115 static char * memcheck P((char * tocheck)); 116 static int mkdirs P((char * filename)); 117 static void newabbr P((const char * abbr)); 118 static long oadd P((long t1, long t2)); 119 static void outzone P((const struct zone * zp, int ntzones)); 120 static void puttzcode P((long code, FILE * fp)); 121 static int rcomp P((const void * leftp, const void * rightp)); 122 static time_t rpytime P((const struct rule * rp, int wantedy)); 123 static void rulesub P((struct rule * rp, 124 const char * loyearp, const char * hiyearp, 125 const char * typep, const char * monthp, 126 const char * dayp, const char * timep)); 127 static void setboundaries P((void)); 128 static time_t tadd P((time_t t1, long t2)); 129 static void usage P((void)); 130 static void writezone P((const char * name)); 131 static int yearistype P((int year, const char * type)); 132 133 #if !(HAVE_STRERROR - 0) 134 static char * strerror P((int)); 135 #endif /* !(HAVE_STRERROR - 0) */ 136 137 static int charcnt; 138 static int errors; 139 static const char * filename; 140 static int leapcnt; 141 static int linenum; 142 static time_t max_time; 143 static int max_year; 144 static int max_year_representable; 145 static time_t min_time; 146 static int min_year; 147 static int min_year_representable; 148 static int noise; 149 static const char * rfilename; 150 static int rlinenum; 151 static const char * progname; 152 static int timecnt; 153 static int typecnt; 154 155 /* 156 ** Line codes. 157 */ 158 159 #define LC_RULE 0 160 #define LC_ZONE 1 161 #define LC_LINK 2 162 #define LC_LEAP 3 163 164 /* 165 ** Which fields are which on a Zone line. 166 */ 167 168 #define ZF_NAME 1 169 #define ZF_GMTOFF 2 170 #define ZF_RULE 3 171 #define ZF_FORMAT 4 172 #define ZF_TILYEAR 5 173 #define ZF_TILMONTH 6 174 #define ZF_TILDAY 7 175 #define ZF_TILTIME 8 176 #define ZONE_MINFIELDS 5 177 #define ZONE_MAXFIELDS 9 178 179 /* 180 ** Which fields are which on a Zone continuation line. 181 */ 182 183 #define ZFC_GMTOFF 0 184 #define ZFC_RULE 1 185 #define ZFC_FORMAT 2 186 #define ZFC_TILYEAR 3 187 #define ZFC_TILMONTH 4 188 #define ZFC_TILDAY 5 189 #define ZFC_TILTIME 6 190 #define ZONEC_MINFIELDS 3 191 #define ZONEC_MAXFIELDS 7 192 193 /* 194 ** Which files are which on a Rule line. 195 */ 196 197 #define RF_NAME 1 198 #define RF_LOYEAR 2 199 #define RF_HIYEAR 3 200 #define RF_COMMAND 4 201 #define RF_MONTH 5 202 #define RF_DAY 6 203 #define RF_TOD 7 204 #define RF_STDOFF 8 205 #define RF_ABBRVAR 9 206 #define RULE_FIELDS 10 207 208 /* 209 ** Which fields are which on a Link line. 210 */ 211 212 #define LF_FROM 1 213 #define LF_TO 2 214 #define LINK_FIELDS 3 215 216 /* 217 ** Which fields are which on a Leap line. 218 */ 219 220 #define LP_YEAR 1 221 #define LP_MONTH 2 222 #define LP_DAY 3 223 #define LP_TIME 4 224 #define LP_CORR 5 225 #define LP_ROLL 6 226 #define LEAP_FIELDS 7 227 228 /* 229 ** Year synonyms. 230 */ 231 232 #define YR_MINIMUM 0 233 #define YR_MAXIMUM 1 234 #define YR_ONLY 2 235 236 static struct rule * rules; 237 static int nrules; /* number of rules */ 238 239 static struct zone * zones; 240 static int nzones; /* number of zones */ 241 242 struct link { 243 const char * l_filename; 244 int l_linenum; 245 const char * l_from; 246 const char * l_to; 247 }; 248 249 static struct link * links; 250 static int nlinks; 251 252 struct lookup { 253 const char * l_word; 254 const int l_value; 255 }; 256 257 static struct lookup const * byword P((const char * string, 258 const struct lookup * lp)); 259 260 static struct lookup const line_codes[] = { 261 { "Rule", LC_RULE }, 262 { "Zone", LC_ZONE }, 263 { "Link", LC_LINK }, 264 { "Leap", LC_LEAP }, 265 { NULL, 0} 266 }; 267 268 static struct lookup const mon_names[] = { 269 { "January", TM_JANUARY }, 270 { "February", TM_FEBRUARY }, 271 { "March", TM_MARCH }, 272 { "April", TM_APRIL }, 273 { "May", TM_MAY }, 274 { "June", TM_JUNE }, 275 { "July", TM_JULY }, 276 { "August", TM_AUGUST }, 277 { "September", TM_SEPTEMBER }, 278 { "October", TM_OCTOBER }, 279 { "November", TM_NOVEMBER }, 280 { "December", TM_DECEMBER }, 281 { NULL, 0 } 282 }; 283 284 static struct lookup const wday_names[] = { 285 { "Sunday", TM_SUNDAY }, 286 { "Monday", TM_MONDAY }, 287 { "Tuesday", TM_TUESDAY }, 288 { "Wednesday", TM_WEDNESDAY }, 289 { "Thursday", TM_THURSDAY }, 290 { "Friday", TM_FRIDAY }, 291 { "Saturday", TM_SATURDAY }, 292 { NULL, 0 } 293 }; 294 295 static struct lookup const lasts[] = { 296 { "last-Sunday", TM_SUNDAY }, 297 { "last-Monday", TM_MONDAY }, 298 { "last-Tuesday", TM_TUESDAY }, 299 { "last-Wednesday", TM_WEDNESDAY }, 300 { "last-Thursday", TM_THURSDAY }, 301 { "last-Friday", TM_FRIDAY }, 302 { "last-Saturday", TM_SATURDAY }, 303 { NULL, 0 } 304 }; 305 306 static struct lookup const begin_years[] = { 307 { "minimum", YR_MINIMUM }, 308 { "maximum", YR_MAXIMUM }, 309 { NULL, 0 } 310 }; 311 312 static struct lookup const end_years[] = { 313 { "minimum", YR_MINIMUM }, 314 { "maximum", YR_MAXIMUM }, 315 { "only", YR_ONLY }, 316 { NULL, 0 } 317 }; 318 319 static struct lookup const leap_types[] = { 320 { "Rolling", TRUE }, 321 { "Stationary", FALSE }, 322 { NULL, 0 } 323 }; 324 325 static const int len_months[2][MONSPERYEAR] = { 326 { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, 327 { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } 328 }; 329 330 static const int len_years[2] = { 331 DAYSPERNYEAR, DAYSPERLYEAR 332 }; 333 334 static struct attype { 335 time_t at; 336 unsigned char type; 337 } attypes[TZ_MAX_TIMES]; 338 static long gmtoffs[TZ_MAX_TYPES]; 339 static char isdsts[TZ_MAX_TYPES]; 340 static unsigned char abbrinds[TZ_MAX_TYPES]; 341 static char ttisstds[TZ_MAX_TYPES]; 342 static char ttisgmts[TZ_MAX_TYPES]; 343 static char chars[TZ_MAX_CHARS]; 344 static time_t trans[TZ_MAX_LEAPS]; 345 static long corr[TZ_MAX_LEAPS]; 346 static char roll[TZ_MAX_LEAPS]; 347 348 /* 349 ** Memory allocation. 350 */ 351 352 static char * 353 memcheck(ptr) 354 char * const ptr; 355 { 356 if (ptr == NULL) { 357 const char *e = strerror(errno); 358 359 (void) fprintf(stderr, _("%s: Memory exhausted: %s\n"), 360 progname, e); 361 (void) exit(EXIT_FAILURE); 362 } 363 return ptr; 364 } 365 366 #define emalloc(size) memcheck(imalloc(size)) 367 #define erealloc(ptr, size) memcheck(irealloc((ptr), (size))) 368 #define ecpyalloc(ptr) memcheck(icpyalloc(ptr)) 369 #define ecatalloc(oldp, newp) memcheck(icatalloc((oldp), (newp))) 370 371 /* 372 ** Error handling. 373 */ 374 375 #if !(HAVE_STRERROR - 0) 376 static char * 377 strerror(errnum) 378 int errnum; 379 { 380 extern char * sys_errlist[]; 381 extern int sys_nerr; 382 383 return (errnum > 0 && errnum <= sys_nerr) ? 384 sys_errlist[errnum] : _("Unknown system error"); 385 } 386 #endif /* !(HAVE_STRERROR - 0) */ 387 388 static void 389 eats(name, num, rname, rnum) 390 const char * const name; 391 const int num; 392 const char * const rname; 393 const int rnum; 394 { 395 filename = name; 396 linenum = num; 397 rfilename = rname; 398 rlinenum = rnum; 399 } 400 401 static void 402 eat(name, num) 403 const char * const name; 404 const int num; 405 { 406 eats(name, num, (char *) NULL, -1); 407 } 408 409 static void 410 error(string) 411 const char * const string; 412 { 413 /* 414 ** Match the format of "cc" to allow sh users to 415 ** zic ... 2>&1 | error -t "*" -v 416 ** on BSD systems. 417 */ 418 (void) fprintf(stderr, _("\"%s\", line %d: %s"), 419 filename, linenum, string); 420 if (rfilename != NULL) 421 (void) fprintf(stderr, _(" (rule from \"%s\", line %d)"), 422 rfilename, rlinenum); 423 (void) fprintf(stderr, "\n"); 424 ++errors; 425 } 426 427 static void 428 warning(string) 429 const char * const string; 430 { 431 char * cp; 432 433 cp = ecpyalloc(_("warning: ")); 434 cp = ecatalloc(cp, string); 435 error(cp); 436 ifree(cp); 437 --errors; 438 } 439 440 static void 441 usage P((void)) 442 { 443 (void) fprintf(stderr, _("%s: usage is %s [ -s ] [ -v ] [ -l localtime ] [ -p posixrules ] [ -d directory ]\n\t[ -L leapseconds ] [ -y yearistype ] [ filename ... ]\n"), 444 progname, progname); 445 (void) exit(EXIT_FAILURE); 446 } 447 448 static const char * psxrules; 449 static const char * lcltime; 450 static const char * directory; 451 static const char * leapsec; 452 static const char * yitcommand; 453 static int sflag = FALSE; 454 455 int 456 main(argc, argv) 457 int argc; 458 char * argv[]; 459 { 460 register int i; 461 register int j; 462 register int c; 463 464 #ifdef unix 465 (void) umask(umask(S_IWGRP | S_IWOTH) | (S_IWGRP | S_IWOTH)); 466 #endif /* defined unix */ 467 #if HAVE_GETTEXT - 0 468 (void) setlocale(LC_MESSAGES, ""); 469 #ifdef TZ_DOMAINDIR 470 (void) bindtextdomain(TZ_DOMAIN, TZ_DOMAINDIR); 471 #endif /* defined TEXTDOMAINDIR */ 472 (void) textdomain(TZ_DOMAIN); 473 #endif /* HAVE_GETTEXT - 0 */ 474 progname = argv[0]; 475 while ((c = getopt(argc, argv, "d:l:p:L:vsy:")) != EOF && c != -1) 476 switch (c) { 477 default: 478 usage(); 479 case 'd': 480 if (directory == NULL) 481 directory = optarg; 482 else { 483 (void) fprintf(stderr, 484 _("%s: More than one -d option specified\n"), 485 progname); 486 (void) exit(EXIT_FAILURE); 487 } 488 break; 489 case 'l': 490 if (lcltime == NULL) 491 lcltime = optarg; 492 else { 493 (void) fprintf(stderr, 494 _("%s: More than one -l option specified\n"), 495 progname); 496 (void) exit(EXIT_FAILURE); 497 } 498 break; 499 case 'p': 500 if (psxrules == NULL) 501 psxrules = optarg; 502 else { 503 (void) fprintf(stderr, 504 _("%s: More than one -p option specified\n"), 505 progname); 506 (void) exit(EXIT_FAILURE); 507 } 508 break; 509 case 'y': 510 if (yitcommand == NULL) 511 yitcommand = optarg; 512 else { 513 (void) fprintf(stderr, 514 _("%s: More than one -y option specified\n"), 515 progname); 516 (void) exit(EXIT_FAILURE); 517 } 518 break; 519 case 'L': 520 if (leapsec == NULL) 521 leapsec = optarg; 522 else { 523 (void) fprintf(stderr, 524 _("%s: More than one -L option specified\n"), 525 progname); 526 (void) exit(EXIT_FAILURE); 527 } 528 break; 529 case 'v': 530 noise = TRUE; 531 break; 532 case 's': 533 sflag = TRUE; 534 break; 535 } 536 if (optind == argc - 1 && strcmp(argv[optind], "=") == 0) 537 usage(); /* usage message by request */ 538 if (directory == NULL) 539 directory = TZDIR; 540 if (yitcommand == NULL) 541 yitcommand = "yearistype"; 542 543 setboundaries(); 544 545 if (optind < argc && leapsec != NULL) { 546 infile(leapsec); 547 adjleap(); 548 } 549 550 for (i = optind; i < argc; ++i) 551 infile(argv[i]); 552 if (errors) 553 (void) exit(EXIT_FAILURE); 554 associate(); 555 for (i = 0; i < nzones; i = j) { 556 /* 557 ** Find the next non-continuation zone entry. 558 */ 559 for (j = i + 1; j < nzones && zones[j].z_name == NULL; ++j) 560 continue; 561 outzone(&zones[i], j - i); 562 } 563 /* 564 ** Make links. 565 */ 566 for (i = 0; i < nlinks; ++i) { 567 eat(links[i].l_filename, links[i].l_linenum); 568 dolink(links[i].l_from, links[i].l_to); 569 } 570 if (lcltime != NULL) { 571 eat("command line", 1); 572 dolink(lcltime, TZDEFAULT); 573 } 574 if (psxrules != NULL) { 575 eat("command line", 1); 576 dolink(psxrules, TZDEFRULES); 577 } 578 return (errors == 0) ? EXIT_SUCCESS : EXIT_FAILURE; 579 } 580 581 static void 582 dolink(fromfile, tofile) 583 const char * const fromfile; 584 const char * const tofile; 585 { 586 register char * fromname; 587 register char * toname; 588 589 if (fromfile[0] == '/') 590 fromname = ecpyalloc(fromfile); 591 else { 592 fromname = ecpyalloc(directory); 593 fromname = ecatalloc(fromname, "/"); 594 fromname = ecatalloc(fromname, fromfile); 595 } 596 if (tofile[0] == '/') 597 toname = ecpyalloc(tofile); 598 else { 599 toname = ecpyalloc(directory); 600 toname = ecatalloc(toname, "/"); 601 toname = ecatalloc(toname, tofile); 602 } 603 /* 604 ** We get to be careful here since 605 ** there's a fair chance of root running us. 606 */ 607 if (!itsdir(toname)) 608 (void) remove(toname); 609 if (link(fromname, toname) != 0) { 610 int result; 611 612 if (mkdirs(toname) != 0) 613 (void) exit(EXIT_FAILURE); 614 615 result = link(fromname, toname); 616 #if (HAVE_SYMLINK - 0) 617 if (result != 0) { 618 char *s = (char *) tofile; 619 register char * symlinkcontents = NULL; 620 while ((s = strchr(s+1, '/')) != NULL) 621 symlinkcontents = ecatalloc(symlinkcontents, "../"); 622 symlinkcontents = ecatalloc(symlinkcontents, fromfile); 623 624 result = symlink(symlinkcontents, toname); 625 if (result == 0) 626 warning(_("hard link failed, symbolic link used")); 627 ifree(symlinkcontents); 628 } 629 #endif 630 if (result != 0) { 631 const char *e = strerror(errno); 632 633 (void) fprintf(stderr, 634 _("%s: Can't link from %s to %s: %s\n"), 635 progname, fromname, toname, e); 636 (void) exit(EXIT_FAILURE); 637 } 638 } 639 ifree(fromname); 640 ifree(toname); 641 } 642 643 #ifndef INT_MAX 644 #define INT_MAX ((int) (((unsigned)~0)>>1)) 645 #endif /* !defined INT_MAX */ 646 647 #ifndef INT_MIN 648 #define INT_MIN ((int) ~(((unsigned)~0)>>1)) 649 #endif /* !defined INT_MIN */ 650 651 /* 652 ** The tz file format currently allows at most 32-bit quantities. 653 ** This restriction should be removed before signed 32-bit values 654 ** wrap around in 2038, but unfortunately this will require a 655 ** change to the tz file format. 656 */ 657 658 #define MAX_BITS_IN_FILE 32 659 #define TIME_T_BITS_IN_FILE ((TYPE_BIT(time_t) < MAX_BITS_IN_FILE) ? TYPE_BIT(time_t) : MAX_BITS_IN_FILE) 660 661 static void 662 setboundaries P((void)) 663 { 664 if (TYPE_SIGNED(time_t)) { 665 min_time = ~ (time_t) 0; 666 min_time <<= TIME_T_BITS_IN_FILE - 1; 667 max_time = ~ (time_t) 0 - min_time; 668 if (sflag) 669 min_time = 0; 670 } else { 671 min_time = 0; 672 max_time = 2 - sflag; 673 max_time <<= TIME_T_BITS_IN_FILE - 1; 674 --max_time; 675 } 676 min_year = TM_YEAR_BASE + gmtime(&min_time)->tm_year; 677 max_year = TM_YEAR_BASE + gmtime(&max_time)->tm_year; 678 min_year_representable = min_year; 679 max_year_representable = max_year; 680 } 681 682 static int 683 itsdir(name) 684 const char * const name; 685 { 686 register char * myname; 687 register int accres; 688 689 myname = ecpyalloc(name); 690 myname = ecatalloc(myname, "/."); 691 accres = access(myname, F_OK); 692 ifree(myname); 693 return accres == 0; 694 } 695 696 /* 697 ** Associate sets of rules with zones. 698 */ 699 700 /* 701 ** Sort by rule name. 702 */ 703 704 static int 705 rcomp(cp1, cp2) 706 const void * cp1; 707 const void * cp2; 708 { 709 return strcmp(((const struct rule *) cp1)->r_name, 710 ((const struct rule *) cp2)->r_name); 711 } 712 713 static void 714 associate P((void)) 715 { 716 register struct zone * zp; 717 register struct rule * rp; 718 register int base, out; 719 register int i, j; 720 721 if (nrules != 0) { 722 (void) qsort((void *) rules, (size_t) nrules, 723 (size_t) sizeof *rules, rcomp); 724 for (i = 0; i < nrules - 1; ++i) { 725 if (strcmp(rules[i].r_name, 726 rules[i + 1].r_name) != 0) 727 continue; 728 if (strcmp(rules[i].r_filename, 729 rules[i + 1].r_filename) == 0) 730 continue; 731 eat(rules[i].r_filename, rules[i].r_linenum); 732 warning(_("same rule name in multiple files")); 733 eat(rules[i + 1].r_filename, rules[i + 1].r_linenum); 734 warning(_("same rule name in multiple files")); 735 for (j = i + 2; j < nrules; ++j) { 736 if (strcmp(rules[i].r_name, 737 rules[j].r_name) != 0) 738 break; 739 if (strcmp(rules[i].r_filename, 740 rules[j].r_filename) == 0) 741 continue; 742 if (strcmp(rules[i + 1].r_filename, 743 rules[j].r_filename) == 0) 744 continue; 745 break; 746 } 747 i = j - 1; 748 } 749 } 750 for (i = 0; i < nzones; ++i) { 751 zp = &zones[i]; 752 zp->z_rules = NULL; 753 zp->z_nrules = 0; 754 } 755 for (base = 0; base < nrules; base = out) { 756 rp = &rules[base]; 757 for (out = base + 1; out < nrules; ++out) 758 if (strcmp(rp->r_name, rules[out].r_name) != 0) 759 break; 760 for (i = 0; i < nzones; ++i) { 761 zp = &zones[i]; 762 if (strcmp(zp->z_rule, rp->r_name) != 0) 763 continue; 764 zp->z_rules = rp; 765 zp->z_nrules = out - base; 766 } 767 } 768 for (i = 0; i < nzones; ++i) { 769 zp = &zones[i]; 770 if (zp->z_nrules == 0) { 771 /* 772 ** Maybe we have a local standard time offset. 773 */ 774 eat(zp->z_filename, zp->z_linenum); 775 zp->z_stdoff = gethms(zp->z_rule, _("unruly zone"), 776 TRUE); 777 /* 778 ** Note, though, that if there's no rule, 779 ** a '%s' in the format is a bad thing. 780 */ 781 if (strchr(zp->z_format, '%') != 0) 782 error(_("%s in ruleless zone")); 783 } 784 } 785 if (errors) 786 (void) exit(EXIT_FAILURE); 787 } 788 789 static void 790 infile(name) 791 const char * name; 792 { 793 register FILE * fp; 794 register char ** fields; 795 register char * cp; 796 register const struct lookup * lp; 797 register int nfields; 798 register int wantcont; 799 register int num; 800 char buf[BUFSIZ]; 801 802 if (strcmp(name, "-") == 0) { 803 name = _("standard input"); 804 fp = stdin; 805 } else if ((fp = fopen(name, "r")) == NULL) { 806 const char *e = strerror(errno); 807 808 (void) fprintf(stderr, _("%s: Can't open %s: %s\n"), 809 progname, name, e); 810 (void) exit(EXIT_FAILURE); 811 } 812 wantcont = FALSE; 813 for (num = 1; ; ++num) { 814 eat(name, num); 815 if (fgets(buf, (int) sizeof buf, fp) != buf) 816 break; 817 cp = strchr(buf, '\n'); 818 if (cp == NULL) { 819 error(_("line too long")); 820 (void) exit(EXIT_FAILURE); 821 } 822 *cp = '\0'; 823 fields = getfields(buf); 824 nfields = 0; 825 while (fields[nfields] != NULL) { 826 static char nada; 827 828 if (strcmp(fields[nfields], "-") == 0) 829 fields[nfields] = &nada; 830 ++nfields; 831 } 832 if (nfields == 0) { 833 /* nothing to do */ 834 } else if (wantcont) { 835 wantcont = inzcont(fields, nfields); 836 } else { 837 lp = byword(fields[0], line_codes); 838 if (lp == NULL) 839 error(_("input line of unknown type")); 840 else switch ((int) (lp->l_value)) { 841 case LC_RULE: 842 inrule(fields, nfields); 843 wantcont = FALSE; 844 break; 845 case LC_ZONE: 846 wantcont = inzone(fields, nfields); 847 break; 848 case LC_LINK: 849 inlink(fields, nfields); 850 wantcont = FALSE; 851 break; 852 case LC_LEAP: 853 if (name != leapsec) 854 (void) fprintf(stderr, 855 _("%s: Leap line in non leap seconds file %s\n"), 856 progname, name); 857 else inleap(fields, nfields); 858 wantcont = FALSE; 859 break; 860 default: /* "cannot happen" */ 861 (void) fprintf(stderr, 862 _("%s: panic: Invalid l_value %d\n"), 863 progname, lp->l_value); 864 (void) exit(EXIT_FAILURE); 865 } 866 } 867 ifree((char *) fields); 868 } 869 if (ferror(fp)) { 870 (void) fprintf(stderr, _("%s: Error reading %s\n"), 871 progname, filename); 872 (void) exit(EXIT_FAILURE); 873 } 874 if (fp != stdin && fclose(fp)) { 875 const char *e = strerror(errno); 876 877 (void) fprintf(stderr, _("%s: Error closing %s: %s\n"), 878 progname, filename, e); 879 (void) exit(EXIT_FAILURE); 880 } 881 if (wantcont) 882 error(_("expected continuation line not found")); 883 } 884 885 /* 886 ** Convert a string of one of the forms 887 ** h -h hh:mm -hh:mm hh:mm:ss -hh:mm:ss 888 ** into a number of seconds. 889 ** A null string maps to zero. 890 ** Call error with errstring and return zero on errors. 891 */ 892 893 static long 894 gethms(string, errstring, signable) 895 const char * string; 896 const char * const errstring; 897 const int signable; 898 { 899 int hh, mm, ss, sign; 900 901 if (string == NULL || *string == '\0') 902 return 0; 903 if (!signable) 904 sign = 1; 905 else if (*string == '-') { 906 sign = -1; 907 ++string; 908 } else sign = 1; 909 if (sscanf(string, scheck(string, "%d"), &hh) == 1) 910 mm = ss = 0; 911 else if (sscanf(string, scheck(string, "%d:%d"), &hh, &mm) == 2) 912 ss = 0; 913 else if (sscanf(string, scheck(string, "%d:%d:%d"), 914 &hh, &mm, &ss) != 3) { 915 error(errstring); 916 return 0; 917 } 918 if ((hh < 0 || hh >= HOURSPERDAY || 919 mm < 0 || mm >= MINSPERHOUR || 920 ss < 0 || ss > SECSPERMIN) && 921 !(hh == HOURSPERDAY && mm == 0 && ss == 0)) { 922 error(errstring); 923 return 0; 924 } 925 return eitol(sign) * 926 (eitol(hh * MINSPERHOUR + mm) * 927 eitol(SECSPERMIN) + eitol(ss)); 928 } 929 930 static void 931 inrule(fields, nfields) 932 register char ** const fields; 933 const int nfields; 934 { 935 static struct rule r; 936 937 if (nfields != RULE_FIELDS) { 938 error(_("wrong number of fields on Rule line")); 939 return; 940 } 941 if (*fields[RF_NAME] == '\0') { 942 error(_("nameless rule")); 943 return; 944 } 945 r.r_filename = filename; 946 r.r_linenum = linenum; 947 r.r_stdoff = gethms(fields[RF_STDOFF], _("invalid saved time"), TRUE); 948 rulesub(&r, fields[RF_LOYEAR], fields[RF_HIYEAR], fields[RF_COMMAND], 949 fields[RF_MONTH], fields[RF_DAY], fields[RF_TOD]); 950 r.r_name = ecpyalloc(fields[RF_NAME]); 951 r.r_abbrvar = ecpyalloc(fields[RF_ABBRVAR]); 952 rules = (struct rule *) (void *) erealloc((char *) rules, 953 (int) ((nrules + 1) * sizeof *rules)); 954 rules[nrules++] = r; 955 } 956 957 static int 958 inzone(fields, nfields) 959 register char ** const fields; 960 const int nfields; 961 { 962 register int i; 963 static char * buf; 964 965 if (nfields < ZONE_MINFIELDS || nfields > ZONE_MAXFIELDS) { 966 error(_("wrong number of fields on Zone line")); 967 return FALSE; 968 } 969 if (strcmp(fields[ZF_NAME], TZDEFAULT) == 0 && lcltime != NULL) { 970 buf = erealloc(buf, (int) (132 + strlen(TZDEFAULT))); 971 (void) sprintf(buf, 972 _("\"Zone %s\" line and -l option are mutually exclusive"), 973 TZDEFAULT); 974 error(buf); 975 return FALSE; 976 } 977 if (strcmp(fields[ZF_NAME], TZDEFRULES) == 0 && psxrules != NULL) { 978 buf = erealloc(buf, (int) (132 + strlen(TZDEFRULES))); 979 (void) sprintf(buf, 980 _("\"Zone %s\" line and -p option are mutually exclusive"), 981 TZDEFRULES); 982 error(buf); 983 return FALSE; 984 } 985 for (i = 0; i < nzones; ++i) 986 if (zones[i].z_name != NULL && 987 strcmp(zones[i].z_name, fields[ZF_NAME]) == 0) { 988 buf = erealloc(buf, (int) (132 + 989 strlen(fields[ZF_NAME]) + 990 strlen(zones[i].z_filename))); 991 (void) sprintf(buf, 992 _("duplicate zone name %s (file \"%s\", line %d)"), 993 fields[ZF_NAME], 994 zones[i].z_filename, 995 zones[i].z_linenum); 996 error(buf); 997 return FALSE; 998 } 999 return inzsub(fields, nfields, FALSE); 1000 } 1001 1002 static int 1003 inzcont(fields, nfields) 1004 register char ** const fields; 1005 const int nfields; 1006 { 1007 if (nfields < ZONEC_MINFIELDS || nfields > ZONEC_MAXFIELDS) { 1008 error(_("wrong number of fields on Zone continuation line")); 1009 return FALSE; 1010 } 1011 return inzsub(fields, nfields, TRUE); 1012 } 1013 1014 static int 1015 inzsub(fields, nfields, iscont) 1016 register char ** const fields; 1017 const int nfields; 1018 const int iscont; 1019 { 1020 register char * cp; 1021 static struct zone z; 1022 register int i_gmtoff, i_rule, i_format; 1023 register int i_untilyear, i_untilmonth; 1024 register int i_untilday, i_untiltime; 1025 register int hasuntil; 1026 1027 if (iscont) { 1028 i_gmtoff = ZFC_GMTOFF; 1029 i_rule = ZFC_RULE; 1030 i_format = ZFC_FORMAT; 1031 i_untilyear = ZFC_TILYEAR; 1032 i_untilmonth = ZFC_TILMONTH; 1033 i_untilday = ZFC_TILDAY; 1034 i_untiltime = ZFC_TILTIME; 1035 z.z_name = NULL; 1036 } else { 1037 i_gmtoff = ZF_GMTOFF; 1038 i_rule = ZF_RULE; 1039 i_format = ZF_FORMAT; 1040 i_untilyear = ZF_TILYEAR; 1041 i_untilmonth = ZF_TILMONTH; 1042 i_untilday = ZF_TILDAY; 1043 i_untiltime = ZF_TILTIME; 1044 z.z_name = ecpyalloc(fields[ZF_NAME]); 1045 } 1046 z.z_filename = filename; 1047 z.z_linenum = linenum; 1048 z.z_gmtoff = gethms(fields[i_gmtoff], _("invalid UTC offset"), TRUE); 1049 if ((cp = strchr(fields[i_format], '%')) != 0) { 1050 if (*++cp != 's' || strchr(cp, '%') != 0) { 1051 error(_("invalid abbreviation format")); 1052 return FALSE; 1053 } 1054 } 1055 z.z_rule = ecpyalloc(fields[i_rule]); 1056 z.z_format = ecpyalloc(fields[i_format]); 1057 hasuntil = nfields > i_untilyear; 1058 if (hasuntil) { 1059 z.z_untilrule.r_filename = filename; 1060 z.z_untilrule.r_linenum = linenum; 1061 rulesub(&z.z_untilrule, 1062 fields[i_untilyear], 1063 "only", 1064 "", 1065 (nfields > i_untilmonth) ? 1066 fields[i_untilmonth] : "Jan", 1067 (nfields > i_untilday) ? fields[i_untilday] : "1", 1068 (nfields > i_untiltime) ? fields[i_untiltime] : "0"); 1069 z.z_untiltime = rpytime(&z.z_untilrule, 1070 z.z_untilrule.r_loyear); 1071 if (iscont && nzones > 0 && 1072 z.z_untiltime > min_time && 1073 z.z_untiltime < max_time && 1074 zones[nzones - 1].z_untiltime > min_time && 1075 zones[nzones - 1].z_untiltime < max_time && 1076 zones[nzones - 1].z_untiltime >= z.z_untiltime) { 1077 error(_("Zone continuation line end time is not after end time of previous line")); 1078 return FALSE; 1079 } 1080 } 1081 zones = (struct zone *) (void *) erealloc((char *) zones, 1082 (int) ((nzones + 1) * sizeof *zones)); 1083 zones[nzones++] = z; 1084 /* 1085 ** If there was an UNTIL field on this line, 1086 ** there's more information about the zone on the next line. 1087 */ 1088 return hasuntil; 1089 } 1090 1091 static void 1092 inleap(fields, nfields) 1093 register char ** const fields; 1094 const int nfields; 1095 { 1096 register const char * cp; 1097 register const struct lookup * lp; 1098 register int i, j; 1099 int year, month, day; 1100 long dayoff, tod; 1101 time_t t; 1102 1103 if (nfields != LEAP_FIELDS) { 1104 error(_("wrong number of fields on Leap line")); 1105 return; 1106 } 1107 dayoff = 0; 1108 cp = fields[LP_YEAR]; 1109 if (sscanf(cp, scheck(cp, "%d"), &year) != 1) { 1110 /* 1111 * Leapin' Lizards! 1112 */ 1113 error(_("invalid leaping year")); 1114 return; 1115 } 1116 j = EPOCH_YEAR; 1117 while (j != year) { 1118 if (year > j) { 1119 i = len_years[isleap(j)]; 1120 ++j; 1121 } else { 1122 --j; 1123 i = -len_years[isleap(j)]; 1124 } 1125 dayoff = oadd(dayoff, eitol(i)); 1126 } 1127 if ((lp = byword(fields[LP_MONTH], mon_names)) == NULL) { 1128 error(_("invalid month name")); 1129 return; 1130 } 1131 month = lp->l_value; 1132 j = TM_JANUARY; 1133 while (j != month) { 1134 i = len_months[isleap(year)][j]; 1135 dayoff = oadd(dayoff, eitol(i)); 1136 ++j; 1137 } 1138 cp = fields[LP_DAY]; 1139 if (sscanf(cp, scheck(cp, "%d"), &day) != 1 || 1140 day <= 0 || day > len_months[isleap(year)][month]) { 1141 error(_("invalid day of month")); 1142 return; 1143 } 1144 dayoff = oadd(dayoff, eitol(day - 1)); 1145 if (dayoff < 0 && !TYPE_SIGNED(time_t)) { 1146 error(_("time before zero")); 1147 return; 1148 } 1149 t = (time_t) dayoff * SECSPERDAY; 1150 /* 1151 ** Cheap overflow check. 1152 */ 1153 if (t / SECSPERDAY != dayoff) { 1154 error(_("time overflow")); 1155 return; 1156 } 1157 tod = gethms(fields[LP_TIME], _("invalid time of day"), FALSE); 1158 cp = fields[LP_CORR]; 1159 { 1160 register int positive; 1161 int count; 1162 1163 if (strcmp(cp, "") == 0) { /* infile() turns "-" into "" */ 1164 positive = FALSE; 1165 count = 1; 1166 } else if (strcmp(cp, "--") == 0) { 1167 positive = FALSE; 1168 count = 2; 1169 } else if (strcmp(cp, "+") == 0) { 1170 positive = TRUE; 1171 count = 1; 1172 } else if (strcmp(cp, "++") == 0) { 1173 positive = TRUE; 1174 count = 2; 1175 } else { 1176 error(_("illegal CORRECTION field on Leap line")); 1177 return; 1178 } 1179 if ((lp = byword(fields[LP_ROLL], leap_types)) == NULL) { 1180 error(_("illegal Rolling/Stationary field on Leap line")); 1181 return; 1182 } 1183 leapadd(tadd(t, tod), positive, lp->l_value, count); 1184 } 1185 } 1186 1187 static void 1188 inlink(fields, nfields) 1189 register char ** const fields; 1190 const int nfields; 1191 { 1192 struct link l; 1193 1194 if (nfields != LINK_FIELDS) { 1195 error(_("wrong number of fields on Link line")); 1196 return; 1197 } 1198 if (*fields[LF_FROM] == '\0') { 1199 error(_("blank FROM field on Link line")); 1200 return; 1201 } 1202 if (*fields[LF_TO] == '\0') { 1203 error(_("blank TO field on Link line")); 1204 return; 1205 } 1206 l.l_filename = filename; 1207 l.l_linenum = linenum; 1208 l.l_from = ecpyalloc(fields[LF_FROM]); 1209 l.l_to = ecpyalloc(fields[LF_TO]); 1210 links = (struct link *) (void *) erealloc((char *) links, 1211 (int) ((nlinks + 1) * sizeof *links)); 1212 links[nlinks++] = l; 1213 } 1214 1215 static void 1216 rulesub(rp, loyearp, hiyearp, typep, monthp, dayp, timep) 1217 register struct rule * const rp; 1218 const char * const loyearp; 1219 const char * const hiyearp; 1220 const char * const typep; 1221 const char * const monthp; 1222 const char * const dayp; 1223 const char * const timep; 1224 { 1225 register const struct lookup * lp; 1226 register const char * cp; 1227 register char * dp; 1228 register char * ep; 1229 1230 if ((lp = byword(monthp, mon_names)) == NULL) { 1231 error(_("invalid month name")); 1232 return; 1233 } 1234 rp->r_month = lp->l_value; 1235 rp->r_todisstd = FALSE; 1236 rp->r_todisgmt = FALSE; 1237 dp = ecpyalloc(timep); 1238 if (*dp != '\0') { 1239 ep = dp + strlen(dp) - 1; 1240 switch (lowerit(*ep)) { 1241 case 's': /* Standard */ 1242 rp->r_todisstd = TRUE; 1243 rp->r_todisgmt = FALSE; 1244 *ep = '\0'; 1245 break; 1246 case 'w': /* Wall */ 1247 rp->r_todisstd = FALSE; 1248 rp->r_todisgmt = FALSE; 1249 *ep = '\0'; 1250 break; 1251 case 'g': /* Greenwich */ 1252 case 'u': /* Universal */ 1253 case 'z': /* Zulu */ 1254 rp->r_todisstd = TRUE; 1255 rp->r_todisgmt = TRUE; 1256 *ep = '\0'; 1257 break; 1258 } 1259 } 1260 rp->r_tod = gethms(dp, _("invalid time of day"), FALSE); 1261 ifree(dp); 1262 /* 1263 ** Year work. 1264 */ 1265 cp = loyearp; 1266 lp = byword(cp, begin_years); 1267 if (lp != NULL) switch ((int) lp->l_value) { 1268 case YR_MINIMUM: 1269 rp->r_loyear = INT_MIN; 1270 break; 1271 case YR_MAXIMUM: 1272 rp->r_loyear = INT_MAX; 1273 break; 1274 default: /* "cannot happen" */ 1275 (void) fprintf(stderr, 1276 _("%s: panic: Invalid l_value %d\n"), 1277 progname, lp->l_value); 1278 (void) exit(EXIT_FAILURE); 1279 } else if (sscanf(cp, scheck(cp, "%d"), &rp->r_loyear) != 1) { 1280 error(_("invalid starting year")); 1281 return; 1282 } else if (noise) { 1283 if (rp->r_loyear < min_year_representable) 1284 warning(_("starting year too low to be represented")); 1285 else if (rp->r_loyear > max_year_representable) 1286 warning(_("starting year too high to be represented")); 1287 } 1288 cp = hiyearp; 1289 if ((lp = byword(cp, end_years)) != NULL) switch ((int) lp->l_value) { 1290 case YR_MINIMUM: 1291 rp->r_hiyear = INT_MIN; 1292 break; 1293 case YR_MAXIMUM: 1294 rp->r_hiyear = INT_MAX; 1295 break; 1296 case YR_ONLY: 1297 rp->r_hiyear = rp->r_loyear; 1298 break; 1299 default: /* "cannot happen" */ 1300 (void) fprintf(stderr, 1301 _("%s: panic: Invalid l_value %d\n"), 1302 progname, lp->l_value); 1303 (void) exit(EXIT_FAILURE); 1304 } else if (sscanf(cp, scheck(cp, "%d"), &rp->r_hiyear) != 1) { 1305 error(_("invalid ending year")); 1306 return; 1307 } else if (noise) { 1308 if (rp->r_loyear < min_year_representable) 1309 warning(_("starting year too low to be represented")); 1310 else if (rp->r_loyear > max_year_representable) 1311 warning(_("starting year too high to be represented")); 1312 } 1313 if (rp->r_loyear > rp->r_hiyear) { 1314 error(_("starting year greater than ending year")); 1315 return; 1316 } 1317 if (*typep == '\0') 1318 rp->r_yrtype = NULL; 1319 else { 1320 if (rp->r_loyear == rp->r_hiyear) { 1321 error(_("typed single year")); 1322 return; 1323 } 1324 rp->r_yrtype = ecpyalloc(typep); 1325 } 1326 if (rp->r_loyear < min_year && rp->r_loyear > 0) 1327 min_year = rp->r_loyear; 1328 /* 1329 ** Day work. 1330 ** Accept things such as: 1331 ** 1 1332 ** last-Sunday 1333 ** Sun<=20 1334 ** Sun>=7 1335 */ 1336 dp = ecpyalloc(dayp); 1337 if ((lp = byword(dp, lasts)) != NULL) { 1338 rp->r_dycode = DC_DOWLEQ; 1339 rp->r_wday = lp->l_value; 1340 rp->r_dayofmonth = len_months[1][rp->r_month]; 1341 } else { 1342 if ((ep = strchr(dp, '<')) != 0) 1343 rp->r_dycode = DC_DOWLEQ; 1344 else if ((ep = strchr(dp, '>')) != 0) 1345 rp->r_dycode = DC_DOWGEQ; 1346 else { 1347 ep = dp; 1348 rp->r_dycode = DC_DOM; 1349 } 1350 if (rp->r_dycode != DC_DOM) { 1351 *ep++ = 0; 1352 if (*ep++ != '=') { 1353 error(_("invalid day of month")); 1354 ifree(dp); 1355 return; 1356 } 1357 if ((lp = byword(dp, wday_names)) == NULL) { 1358 error(_("invalid weekday name")); 1359 ifree(dp); 1360 return; 1361 } 1362 rp->r_wday = lp->l_value; 1363 } 1364 if (sscanf(ep, scheck(ep, "%d"), &rp->r_dayofmonth) != 1 || 1365 rp->r_dayofmonth <= 0 || 1366 (rp->r_dayofmonth > len_months[1][rp->r_month])) { 1367 error(_("invalid day of month")); 1368 ifree(dp); 1369 return; 1370 } 1371 } 1372 ifree(dp); 1373 } 1374 1375 static void 1376 convert(val, buf) 1377 const long val; 1378 char * const buf; 1379 { 1380 register int i; 1381 register long shift; 1382 1383 for (i = 0, shift = 24; i < 4; ++i, shift -= 8) 1384 buf[i] = val >> shift; 1385 } 1386 1387 static void 1388 puttzcode(val, fp) 1389 const long val; 1390 FILE * const fp; 1391 { 1392 char buf[4]; 1393 1394 convert(val, buf); 1395 (void) fwrite((void *) buf, (size_t) sizeof buf, (size_t) 1, fp); 1396 } 1397 1398 static int 1399 atcomp(avp, bvp) 1400 void * avp; 1401 void * bvp; 1402 { 1403 if (((struct attype *) avp)->at < ((struct attype *) bvp)->at) 1404 return -1; 1405 else if (((struct attype *) avp)->at > ((struct attype *) bvp)->at) 1406 return 1; 1407 else return 0; 1408 } 1409 1410 static void 1411 writezone(name) 1412 const char * const name; 1413 { 1414 register FILE * fp; 1415 register int i, j; 1416 static char * fullname; 1417 static struct tzhead tzh; 1418 time_t ats[TZ_MAX_TIMES]; 1419 unsigned char types[TZ_MAX_TIMES]; 1420 1421 /* 1422 ** Sort. 1423 */ 1424 if (timecnt > 1) 1425 (void) qsort((void *) attypes, (size_t) timecnt, 1426 (size_t) sizeof *attypes, atcomp); 1427 /* 1428 ** Optimize. 1429 */ 1430 { 1431 int fromi; 1432 int toi; 1433 1434 toi = 0; 1435 fromi = 0; 1436 while (fromi < timecnt && attypes[fromi].at < min_time) 1437 ++fromi; 1438 if (isdsts[0] == 0) 1439 while (fromi < timecnt && attypes[fromi].type == 0) 1440 ++fromi; /* handled by default rule */ 1441 for ( ; fromi < timecnt; ++fromi) { 1442 if (toi != 0 1443 && ((attypes[fromi].at 1444 + gmtoffs[attypes[toi - 1].type]) 1445 <= (attypes[toi - 1].at 1446 + gmtoffs[toi == 1 ? 0 1447 : attypes[toi - 2].type]))) { 1448 attypes[toi - 1].type = attypes[fromi].type; 1449 continue; 1450 } 1451 if (toi == 0 || 1452 attypes[toi - 1].type != attypes[fromi].type) 1453 attypes[toi++] = attypes[fromi]; 1454 } 1455 timecnt = toi; 1456 } 1457 /* 1458 ** Transfer. 1459 */ 1460 for (i = 0; i < timecnt; ++i) { 1461 ats[i] = attypes[i].at; 1462 types[i] = attypes[i].type; 1463 } 1464 fullname = erealloc(fullname, 1465 (int) (strlen(directory) + 1 + strlen(name) + 1)); 1466 (void) sprintf(fullname, "%s/%s", directory, name); 1467 /* 1468 ** Remove old file, if any, to snap links. 1469 */ 1470 if (!itsdir(fullname) && remove(fullname) != 0 && errno != ENOENT) { 1471 const char *e = strerror(errno); 1472 1473 (void) fprintf(stderr, _("%s: Can't remove %s: %s\n"), 1474 progname, fullname, e); 1475 (void) exit(EXIT_FAILURE); 1476 } 1477 if ((fp = fopen(fullname, "wb")) == NULL) { 1478 if (mkdirs(fullname) != 0) 1479 (void) exit(EXIT_FAILURE); 1480 if ((fp = fopen(fullname, "wb")) == NULL) { 1481 const char *e = strerror(errno); 1482 1483 (void) fprintf(stderr, _("%s: Can't create %s: %s\n"), 1484 progname, fullname, e); 1485 (void) exit(EXIT_FAILURE); 1486 } 1487 } 1488 convert(eitol(typecnt), tzh.tzh_ttisgmtcnt); 1489 convert(eitol(typecnt), tzh.tzh_ttisstdcnt); 1490 convert(eitol(leapcnt), tzh.tzh_leapcnt); 1491 convert(eitol(timecnt), tzh.tzh_timecnt); 1492 convert(eitol(typecnt), tzh.tzh_typecnt); 1493 convert(eitol(charcnt), tzh.tzh_charcnt); 1494 (void) strncpy(tzh.tzh_magic, TZ_MAGIC, sizeof tzh.tzh_magic); 1495 #define DO(field) (void) fwrite((void *) tzh.field, (size_t) sizeof tzh.field, (size_t) 1, fp) 1496 DO(tzh_magic); 1497 DO(tzh_reserved); 1498 DO(tzh_ttisgmtcnt); 1499 DO(tzh_ttisstdcnt); 1500 DO(tzh_leapcnt); 1501 DO(tzh_timecnt); 1502 DO(tzh_typecnt); 1503 DO(tzh_charcnt); 1504 #undef DO 1505 for (i = 0; i < timecnt; ++i) { 1506 j = leapcnt; 1507 while (--j >= 0) 1508 if (ats[i] >= trans[j]) { 1509 ats[i] = tadd(ats[i], corr[j]); 1510 break; 1511 } 1512 puttzcode((long) ats[i], fp); 1513 } 1514 if (timecnt > 0) 1515 (void) fwrite((void *) types, (size_t) sizeof types[0], 1516 (size_t) timecnt, fp); 1517 for (i = 0; i < typecnt; ++i) { 1518 puttzcode((long) gmtoffs[i], fp); 1519 (void) putc(isdsts[i], fp); 1520 (void) putc(abbrinds[i], fp); 1521 } 1522 if (charcnt != 0) 1523 (void) fwrite((void *) chars, (size_t) sizeof chars[0], 1524 (size_t) charcnt, fp); 1525 for (i = 0; i < leapcnt; ++i) { 1526 if (roll[i]) { 1527 if (timecnt == 0 || trans[i] < ats[0]) { 1528 j = 0; 1529 while (isdsts[j]) 1530 if (++j >= typecnt) { 1531 j = 0; 1532 break; 1533 } 1534 } else { 1535 j = 1; 1536 while (j < timecnt && trans[i] >= ats[j]) 1537 ++j; 1538 j = types[j - 1]; 1539 } 1540 puttzcode((long) tadd(trans[i], -gmtoffs[j]), fp); 1541 } else puttzcode((long) trans[i], fp); 1542 puttzcode((long) corr[i], fp); 1543 } 1544 for (i = 0; i < typecnt; ++i) 1545 (void) putc(ttisstds[i], fp); 1546 for (i = 0; i < typecnt; ++i) 1547 (void) putc(ttisgmts[i], fp); 1548 if (ferror(fp) || fclose(fp)) { 1549 (void) fprintf(stderr, _("%s: Error writing %s\n"), 1550 progname, fullname); 1551 (void) exit(EXIT_FAILURE); 1552 } 1553 } 1554 1555 static void 1556 doabbr(abbr, format, letters, isdst) 1557 char * const abbr; 1558 const char * const format; 1559 const char * const letters; 1560 const int isdst; 1561 { 1562 if (strchr(format, '/') == NULL) { 1563 if (letters == NULL) 1564 (void) strcpy(abbr, format); 1565 else (void) sprintf(abbr, format, letters); 1566 } else if (isdst) 1567 (void) strcpy(abbr, strchr(format, '/') + 1); 1568 else { 1569 (void) strcpy(abbr, format); 1570 *strchr(abbr, '/') = '\0'; 1571 } 1572 } 1573 1574 static void 1575 outzone(zpfirst, zonecount) 1576 const struct zone * const zpfirst; 1577 const int zonecount; 1578 { 1579 register const struct zone * zp; 1580 register struct rule * rp; 1581 register int i, j; 1582 register int usestart, useuntil; 1583 register time_t starttime, untiltime; 1584 register long gmtoff; 1585 register long stdoff; 1586 register int year; 1587 register long startoff; 1588 register int startttisstd; 1589 register int startttisgmt; 1590 register int type; 1591 char startbuf[BUFSIZ]; 1592 1593 INITIALIZE(untiltime); 1594 INITIALIZE(starttime); 1595 /* 1596 ** Now. . .finally. . .generate some useful data! 1597 */ 1598 timecnt = 0; 1599 typecnt = 0; 1600 charcnt = 0; 1601 /* 1602 ** A guess that may well be corrected later. 1603 */ 1604 stdoff = 0; 1605 /* 1606 ** Thanks to Earl Chew (earl (at) dnd.icp.nec.com.au) 1607 ** for noting the need to unconditionally initialize startttisstd. 1608 */ 1609 startttisstd = FALSE; 1610 startttisgmt = FALSE; 1611 for (i = 0; i < zonecount; ++i) { 1612 zp = &zpfirst[i]; 1613 usestart = i > 0 && (zp - 1)->z_untiltime > min_time; 1614 useuntil = i < (zonecount - 1); 1615 if (useuntil && zp->z_untiltime <= min_time) 1616 continue; 1617 gmtoff = zp->z_gmtoff; 1618 eat(zp->z_filename, zp->z_linenum); 1619 *startbuf = '\0'; 1620 startoff = zp->z_gmtoff; 1621 if (zp->z_nrules == 0) { 1622 stdoff = zp->z_stdoff; 1623 doabbr(startbuf, zp->z_format, 1624 (char *) NULL, stdoff != 0); 1625 type = addtype(oadd(zp->z_gmtoff, stdoff), 1626 startbuf, stdoff != 0, startttisstd, 1627 startttisgmt); 1628 if (usestart) { 1629 addtt(starttime, type); 1630 usestart = FALSE; 1631 } 1632 else if (stdoff != 0) 1633 addtt(min_time, type); 1634 } else for (year = min_year; year <= max_year; ++year) { 1635 if (useuntil && year > zp->z_untilrule.r_hiyear) 1636 break; 1637 /* 1638 ** Mark which rules to do in the current year. 1639 ** For those to do, calculate rpytime(rp, year); 1640 */ 1641 for (j = 0; j < zp->z_nrules; ++j) { 1642 rp = &zp->z_rules[j]; 1643 eats(zp->z_filename, zp->z_linenum, 1644 rp->r_filename, rp->r_linenum); 1645 rp->r_todo = year >= rp->r_loyear && 1646 year <= rp->r_hiyear && 1647 yearistype(year, rp->r_yrtype); 1648 if (rp->r_todo) 1649 rp->r_temp = rpytime(rp, year); 1650 } 1651 for ( ; ; ) { 1652 register int k; 1653 register time_t jtime, ktime; 1654 register long offset; 1655 char buf[BUFSIZ]; 1656 1657 INITIALIZE(ktime); 1658 if (useuntil) { 1659 /* 1660 ** Turn untiltime into UTC 1661 ** assuming the current gmtoff and 1662 ** stdoff values. 1663 */ 1664 untiltime = zp->z_untiltime; 1665 if (!zp->z_untilrule.r_todisgmt) 1666 untiltime = tadd(untiltime, 1667 -gmtoff); 1668 if (!zp->z_untilrule.r_todisstd) 1669 untiltime = tadd(untiltime, 1670 -stdoff); 1671 } 1672 /* 1673 ** Find the rule (of those to do, if any) 1674 ** that takes effect earliest in the year. 1675 */ 1676 k = -1; 1677 for (j = 0; j < zp->z_nrules; ++j) { 1678 rp = &zp->z_rules[j]; 1679 if (!rp->r_todo) 1680 continue; 1681 eats(zp->z_filename, zp->z_linenum, 1682 rp->r_filename, rp->r_linenum); 1683 offset = rp->r_todisgmt ? 0 : gmtoff; 1684 if (!rp->r_todisstd) 1685 offset = oadd(offset, stdoff); 1686 jtime = rp->r_temp; 1687 if (jtime == min_time || 1688 jtime == max_time) 1689 continue; 1690 jtime = tadd(jtime, -offset); 1691 if (k < 0 || jtime < ktime) { 1692 k = j; 1693 ktime = jtime; 1694 } 1695 } 1696 if (k < 0) 1697 break; /* go on to next year */ 1698 rp = &zp->z_rules[k]; 1699 rp->r_todo = FALSE; 1700 if (useuntil && ktime >= untiltime) 1701 break; 1702 stdoff = rp->r_stdoff; 1703 if (usestart && ktime == starttime) 1704 usestart = FALSE; 1705 if (usestart) { 1706 if (ktime < starttime) { 1707 startoff = oadd(zp->z_gmtoff, 1708 stdoff); 1709 doabbr(startbuf, zp->z_format, 1710 rp->r_abbrvar, 1711 rp->r_stdoff != 0); 1712 continue; 1713 } 1714 if (*startbuf == '\0' && 1715 startoff == oadd(zp->z_gmtoff, 1716 stdoff)) { 1717 doabbr(startbuf, zp->z_format, 1718 rp->r_abbrvar, 1719 rp->r_stdoff != 0); 1720 } 1721 } 1722 eats(zp->z_filename, zp->z_linenum, 1723 rp->r_filename, rp->r_linenum); 1724 doabbr(buf, zp->z_format, rp->r_abbrvar, 1725 rp->r_stdoff != 0); 1726 offset = oadd(zp->z_gmtoff, rp->r_stdoff); 1727 type = addtype(offset, buf, rp->r_stdoff != 0, 1728 rp->r_todisstd, rp->r_todisgmt); 1729 addtt(ktime, type); 1730 } 1731 } 1732 if (usestart) { 1733 if (*startbuf == '\0' && 1734 zp->z_format != NULL && 1735 strchr(zp->z_format, '%') == NULL && 1736 strchr(zp->z_format, '/') == NULL) 1737 (void) strcpy(startbuf, zp->z_format); 1738 eat(zp->z_filename, zp->z_linenum); 1739 if (*startbuf == '\0') 1740 error(_("can't determine time zone abbreviation to use just after until time")); 1741 else addtt(starttime, 1742 addtype(startoff, startbuf, 1743 startoff != zp->z_gmtoff, 1744 startttisstd, 1745 startttisgmt)); 1746 } 1747 /* 1748 ** Now we may get to set starttime for the next zone line. 1749 */ 1750 if (useuntil) { 1751 startttisstd = zp->z_untilrule.r_todisstd; 1752 startttisgmt = zp->z_untilrule.r_todisgmt; 1753 starttime = zp->z_untiltime; 1754 if (!startttisstd) 1755 starttime = tadd(starttime, -stdoff); 1756 if (!startttisgmt) 1757 starttime = tadd(starttime, -gmtoff); 1758 } 1759 } 1760 writezone(zpfirst->z_name); 1761 } 1762 1763 static void 1764 addtt(starttime, type) 1765 const time_t starttime; 1766 int type; 1767 { 1768 if (starttime <= min_time || 1769 (timecnt == 1 && attypes[0].at < min_time)) { 1770 gmtoffs[0] = gmtoffs[type]; 1771 isdsts[0] = isdsts[type]; 1772 ttisstds[0] = ttisstds[type]; 1773 ttisgmts[0] = ttisgmts[type]; 1774 if (abbrinds[type] != 0) 1775 (void) strcpy(chars, &chars[abbrinds[type]]); 1776 abbrinds[0] = 0; 1777 charcnt = strlen(chars) + 1; 1778 typecnt = 1; 1779 timecnt = 0; 1780 type = 0; 1781 } 1782 if (timecnt >= TZ_MAX_TIMES) { 1783 error(_("too many transitions?!")); 1784 (void) exit(EXIT_FAILURE); 1785 } 1786 attypes[timecnt].at = starttime; 1787 attypes[timecnt].type = type; 1788 ++timecnt; 1789 } 1790 1791 static int 1792 addtype(gmtoff, abbr, isdst, ttisstd, ttisgmt) 1793 const long gmtoff; 1794 const char * const abbr; 1795 const int isdst; 1796 const int ttisstd; 1797 const int ttisgmt; 1798 { 1799 register int i, j; 1800 1801 if (isdst != TRUE && isdst != FALSE) { 1802 error(_("internal error - addtype called with bad isdst")); 1803 (void) exit(EXIT_FAILURE); 1804 } 1805 if (ttisstd != TRUE && ttisstd != FALSE) { 1806 error(_("internal error - addtype called with bad ttisstd")); 1807 (void) exit(EXIT_FAILURE); 1808 } 1809 if (ttisgmt != TRUE && ttisgmt != FALSE) { 1810 error(_("internal error - addtype called with bad ttisgmt")); 1811 (void) exit(EXIT_FAILURE); 1812 } 1813 /* 1814 ** See if there's already an entry for this zone type. 1815 ** If so, just return its index. 1816 */ 1817 for (i = 0; i < typecnt; ++i) { 1818 if (gmtoff == gmtoffs[i] && isdst == isdsts[i] && 1819 strcmp(abbr, &chars[abbrinds[i]]) == 0 && 1820 ttisstd == ttisstds[i] && 1821 ttisgmt == ttisgmts[i]) 1822 return i; 1823 } 1824 /* 1825 ** There isn't one; add a new one, unless there are already too 1826 ** many. 1827 */ 1828 if (typecnt >= TZ_MAX_TYPES) { 1829 error(_("too many local time types")); 1830 (void) exit(EXIT_FAILURE); 1831 } 1832 gmtoffs[i] = gmtoff; 1833 isdsts[i] = isdst; 1834 ttisstds[i] = ttisstd; 1835 ttisgmts[i] = ttisgmt; 1836 1837 for (j = 0; j < charcnt; ++j) 1838 if (strcmp(&chars[j], abbr) == 0) 1839 break; 1840 if (j == charcnt) 1841 newabbr(abbr); 1842 abbrinds[i] = j; 1843 ++typecnt; 1844 return i; 1845 } 1846 1847 static void 1848 leapadd(t, positive, rolling, count) 1849 const time_t t; 1850 const int positive; 1851 const int rolling; 1852 int count; 1853 { 1854 register int i, j; 1855 1856 if (leapcnt + (positive ? count : 1) > TZ_MAX_LEAPS) { 1857 error(_("too many leap seconds")); 1858 (void) exit(EXIT_FAILURE); 1859 } 1860 for (i = 0; i < leapcnt; ++i) 1861 if (t <= trans[i]) { 1862 if (t == trans[i]) { 1863 error(_("repeated leap second moment")); 1864 (void) exit(EXIT_FAILURE); 1865 } 1866 break; 1867 } 1868 do { 1869 for (j = leapcnt; j > i; --j) { 1870 trans[j] = trans[j - 1]; 1871 corr[j] = corr[j - 1]; 1872 roll[j] = roll[j - 1]; 1873 } 1874 trans[i] = t; 1875 corr[i] = positive ? 1L : eitol(-count); 1876 roll[i] = rolling; 1877 ++leapcnt; 1878 } while (positive && --count != 0); 1879 } 1880 1881 static void 1882 adjleap P((void)) 1883 { 1884 register int i; 1885 register long last = 0; 1886 1887 /* 1888 ** propagate leap seconds forward 1889 */ 1890 for (i = 0; i < leapcnt; ++i) { 1891 trans[i] = tadd(trans[i], last); 1892 last = corr[i] += last; 1893 } 1894 } 1895 1896 static int 1897 yearistype(year, type) 1898 const int year; 1899 const char * const type; 1900 { 1901 static char * buf; 1902 int result; 1903 1904 if (type == NULL || *type == '\0') 1905 return TRUE; 1906 buf = erealloc(buf, (int) (132 + strlen(yitcommand) + strlen(type))); 1907 (void) sprintf(buf, "%s %d %s", yitcommand, year, type); 1908 result = system(buf); 1909 if (result == 0) 1910 return TRUE; 1911 if (result == (1 << 8)) 1912 return FALSE; 1913 error(_("Wild result from command execution")); 1914 (void) fprintf(stderr, _("%s: command was '%s', result was %d\n"), 1915 progname, buf, result); 1916 for ( ; ; ) 1917 (void) exit(EXIT_FAILURE); 1918 } 1919 1920 static int 1921 lowerit(a) 1922 int a; 1923 { 1924 a = (unsigned char) a; 1925 return (isascii(a) && isupper(a)) ? tolower(a) : a; 1926 } 1927 1928 static int 1929 ciequal(ap, bp) /* case-insensitive equality */ 1930 register const char * ap; 1931 register const char * bp; 1932 { 1933 while (lowerit(*ap) == lowerit(*bp++)) 1934 if (*ap++ == '\0') 1935 return TRUE; 1936 return FALSE; 1937 } 1938 1939 static int 1940 itsabbr(abbr, word) 1941 register const char * abbr; 1942 register const char * word; 1943 { 1944 if (lowerit(*abbr) != lowerit(*word)) 1945 return FALSE; 1946 ++word; 1947 while (*++abbr != '\0') 1948 do { 1949 if (*word == '\0') 1950 return FALSE; 1951 } while (lowerit(*word++) != lowerit(*abbr)); 1952 return TRUE; 1953 } 1954 1955 static const struct lookup * 1956 byword(word, table) 1957 register const char * const word; 1958 register const struct lookup * const table; 1959 { 1960 register const struct lookup * foundlp; 1961 register const struct lookup * lp; 1962 1963 if (word == NULL || table == NULL) 1964 return NULL; 1965 /* 1966 ** Look for exact match. 1967 */ 1968 for (lp = table; lp->l_word != NULL; ++lp) 1969 if (ciequal(word, lp->l_word)) 1970 return lp; 1971 /* 1972 ** Look for inexact match. 1973 */ 1974 foundlp = NULL; 1975 for (lp = table; lp->l_word != NULL; ++lp) 1976 if (itsabbr(word, lp->l_word)) { 1977 if (foundlp == NULL) 1978 foundlp = lp; 1979 else return NULL; /* multiple inexact matches */ 1980 } 1981 return foundlp; 1982 } 1983 1984 static char ** 1985 getfields(cp) 1986 register char * cp; 1987 { 1988 register char * dp; 1989 register char ** array; 1990 register int nsubs; 1991 1992 if (cp == NULL) 1993 return NULL; 1994 array = (char **) (void *) 1995 emalloc((int) ((strlen(cp) + 1) * sizeof *array)); 1996 nsubs = 0; 1997 for ( ; ; ) { 1998 while (isascii(*cp) && isspace((unsigned char) *cp)) 1999 ++cp; 2000 if (*cp == '\0' || *cp == '#') 2001 break; 2002 array[nsubs++] = dp = cp; 2003 do { 2004 if ((*dp = *cp++) != '"') 2005 ++dp; 2006 else while ((*dp = *cp++) != '"') 2007 if (*dp != '\0') 2008 ++dp; 2009 else error(_("Odd number of quotation marks")); 2010 } while (*cp != '\0' && *cp != '#' && 2011 (!isascii(*cp) || !isspace((unsigned char) *cp))); 2012 if (isascii(*cp) && isspace((unsigned char) *cp)) 2013 ++cp; 2014 *dp = '\0'; 2015 } 2016 array[nsubs] = NULL; 2017 return array; 2018 } 2019 2020 static long 2021 oadd(t1, t2) 2022 const long t1; 2023 const long t2; 2024 { 2025 register long t; 2026 2027 t = t1 + t2; 2028 if ((t2 > 0 && t <= t1) || (t2 < 0 && t >= t1)) { 2029 error(_("time overflow")); 2030 (void) exit(EXIT_FAILURE); 2031 } 2032 return t; 2033 } 2034 2035 static time_t 2036 tadd(t1, t2) 2037 const time_t t1; 2038 const long t2; 2039 { 2040 register time_t t; 2041 2042 if (t1 == max_time && t2 > 0) 2043 return max_time; 2044 if (t1 == min_time && t2 < 0) 2045 return min_time; 2046 t = t1 + t2; 2047 if ((t2 > 0 && t <= t1) || (t2 < 0 && t >= t1)) { 2048 error(_("time overflow")); 2049 (void) exit(EXIT_FAILURE); 2050 } 2051 return t; 2052 } 2053 2054 /* 2055 ** Given a rule, and a year, compute the date - in seconds since January 1, 2056 ** 1970, 00:00 LOCAL time - in that year that the rule refers to. 2057 */ 2058 2059 static time_t 2060 rpytime(rp, wantedy) 2061 register const struct rule * const rp; 2062 register const int wantedy; 2063 { 2064 register int y, m, i; 2065 register long dayoff; /* with a nod to Margaret O. */ 2066 register time_t t; 2067 2068 if (wantedy == INT_MIN) 2069 return min_time; 2070 if (wantedy == INT_MAX) 2071 return max_time; 2072 dayoff = 0; 2073 m = TM_JANUARY; 2074 y = EPOCH_YEAR; 2075 while (wantedy != y) { 2076 if (wantedy > y) { 2077 i = len_years[isleap(y)]; 2078 ++y; 2079 } else { 2080 --y; 2081 i = -len_years[isleap(y)]; 2082 } 2083 dayoff = oadd(dayoff, eitol(i)); 2084 } 2085 while (m != rp->r_month) { 2086 i = len_months[isleap(y)][m]; 2087 dayoff = oadd(dayoff, eitol(i)); 2088 ++m; 2089 } 2090 i = rp->r_dayofmonth; 2091 if (m == TM_FEBRUARY && i == 29 && !isleap(y)) { 2092 if (rp->r_dycode == DC_DOWLEQ) 2093 --i; 2094 else { 2095 error(_("use of 2/29 in non leap-year")); 2096 (void) exit(EXIT_FAILURE); 2097 } 2098 } 2099 --i; 2100 dayoff = oadd(dayoff, eitol(i)); 2101 if (rp->r_dycode == DC_DOWGEQ || rp->r_dycode == DC_DOWLEQ) { 2102 register long wday; 2103 2104 #define LDAYSPERWEEK ((long) DAYSPERWEEK) 2105 wday = eitol(EPOCH_WDAY); 2106 /* 2107 ** Don't trust mod of negative numbers. 2108 */ 2109 if (dayoff >= 0) 2110 wday = (wday + dayoff) % LDAYSPERWEEK; 2111 else { 2112 wday -= ((-dayoff) % LDAYSPERWEEK); 2113 if (wday < 0) 2114 wday += LDAYSPERWEEK; 2115 } 2116 while (wday != eitol(rp->r_wday)) 2117 if (rp->r_dycode == DC_DOWGEQ) { 2118 dayoff = oadd(dayoff, (long) 1); 2119 if (++wday >= LDAYSPERWEEK) 2120 wday = 0; 2121 ++i; 2122 } else { 2123 dayoff = oadd(dayoff, (long) -1); 2124 if (--wday < 0) 2125 wday = LDAYSPERWEEK - 1; 2126 --i; 2127 } 2128 if (i < 0 || i >= len_months[isleap(y)][m]) { 2129 error(_("no day in month matches rule")); 2130 (void) exit(EXIT_FAILURE); 2131 } 2132 } 2133 if (dayoff < 0 && !TYPE_SIGNED(time_t)) 2134 return min_time; 2135 t = (time_t) dayoff * SECSPERDAY; 2136 /* 2137 ** Cheap overflow check. 2138 */ 2139 if (t / SECSPERDAY != dayoff) 2140 return (dayoff > 0) ? max_time : min_time; 2141 return tadd(t, rp->r_tod); 2142 } 2143 2144 static void 2145 newabbr(string) 2146 const char * const string; 2147 { 2148 register int i; 2149 2150 i = strlen(string) + 1; 2151 if (charcnt + i > TZ_MAX_CHARS) { 2152 error(_("too many, or too long, time zone abbreviations")); 2153 (void) exit(EXIT_FAILURE); 2154 } 2155 (void) strcpy(&chars[charcnt], string); 2156 charcnt += eitol(i); 2157 } 2158 2159 static int 2160 mkdirs(argname) 2161 char * const argname; 2162 { 2163 register char * name; 2164 register char * cp; 2165 2166 if (argname == NULL || *argname == '\0') 2167 return 0; 2168 cp = name = ecpyalloc(argname); 2169 while ((cp = strchr(cp + 1, '/')) != 0) { 2170 *cp = '\0'; 2171 #ifndef unix 2172 /* 2173 ** DOS drive specifier? 2174 */ 2175 if (isalpha((unsigned char) name[0]) && 2176 name[1] == ':' && name[2] == '\0') { 2177 *cp = '/'; 2178 continue; 2179 } 2180 #endif /* !defined unix */ 2181 if (!itsdir(name)) { 2182 /* 2183 ** It doesn't seem to exist, so we try to create it. 2184 ** Creation may fail because of the directory being 2185 ** created by some other multiprocessor, so we get 2186 ** to do extra checking. 2187 */ 2188 if (mkdir(name, S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) != 0) { 2189 const char *e = strerror(errno); 2190 2191 if (errno != EEXIST || !itsdir(name)) { 2192 (void) fprintf(stderr, 2193 _("%s: Can't create directory %s: %s\n"), 2194 progname, name, e); 2195 ifree(name); 2196 return -1; 2197 } 2198 } 2199 } 2200 *cp = '/'; 2201 } 2202 ifree(name); 2203 return 0; 2204 } 2205 2206 static long 2207 eitol(i) 2208 const int i; 2209 { 2210 long l; 2211 2212 l = i; 2213 if ((i < 0 && l >= 0) || (i == 0 && l != 0) || (i > 0 && l <= 0)) { 2214 (void) fprintf(stderr, 2215 _("%s: %d did not sign extend correctly\n"), 2216 progname, i); 2217 (void) exit(EXIT_FAILURE); 2218 } 2219 return l; 2220 } 2221 2222 /* 2223 ** UNIX was a registered trademark of UNIX System Laboratories in 1993. 2224 */ 2225
Indexes created Thu Oct 02 14:10:14 GMT 2025