1 /* $NetBSD: zic.c,v 1.9 1997/07/13 20:26:56 christos Exp $ */ 2 3 #include <sys/cdefs.h> 4 #ifndef lint 5 #ifndef NOID 6 #if 0 7 static char elsieid[] = "@(#)zic.c 7.87"; 8 #else 9 __RCSID("$NetBSD: zic.c,v 1.9 1997/07/13 20:26:56 christos Exp $"); 10 #endif 11 #endif /* !defined NOID */ 12 #endif /* !defined lint */ 13 14 #include "private.h" 15 #include "locale.h" 16 #include "tzfile.h" 17 #include "sys/stat.h" /* for umask manifest constants */ 18 19 /* 20 ** On some ancient hosts, predicates like `isspace(C)' are defined 21 ** only if isascii(C) || C == EOF. Modern hosts obey the C Standard, 22 ** which says they are defined only if C == ((unsigned char) C) || C == EOF. 23 ** Neither the C Standard nor Posix require that `isascii' exist. 24 ** For portability, we check both ancient and modern requirements. 25 ** If isascii is not defined, the isascii check succeeds trivially. 26 */ 27 #include "ctype.h" 28 #ifndef isascii 29 #define isascii(x) 1 30 #endif 31 32 struct rule { 33 const char * r_filename; 34 int r_linenum; 35 const char * r_name; 36 37 int r_loyear; /* for example, 1986 */ 38 int r_hiyear; /* for example, 1986 */ 39 const char * r_yrtype; 40 41 int r_month; /* 0..11 */ 42 43 int r_dycode; /* see below */ 44 int r_dayofmonth; 45 int r_wday; 46 47 long r_tod; /* time from midnight */ 48 int r_todisstd; /* above is standard time if TRUE */ 49 /* or wall clock time if FALSE */ 50 int r_todisgmt; /* above is GMT if TRUE */ 51 /* or local time if FALSE */ 52 long r_stdoff; /* offset from standard time */ 53 const char * r_abbrvar; /* variable part of abbreviation */ 54 55 int r_todo; /* a rule to do (used in outzone) */ 56 time_t r_temp; /* used in outzone */ 57 }; 58 59 /* 60 ** r_dycode r_dayofmonth r_wday 61 */ 62 63 #define DC_DOM 0 /* 1..31 */ /* unused */ 64 #define DC_DOWGEQ 1 /* 1..31 */ /* 0..6 (Sun..Sat) */ 65 #define DC_DOWLEQ 2 /* 1..31 */ /* 0..6 (Sun..Sat) */ 66 67 struct zone { 68 const char * z_filename; 69 int z_linenum; 70 71 const char * z_name; 72 long z_gmtoff; 73 const char * z_rule; 74 const char * z_format; 75 76 long z_stdoff; 77 78 struct rule * z_rules; 79 int z_nrules; 80 81 struct rule z_untilrule; 82 time_t z_untiltime; 83 }; 84 85 extern int getopt P((int argc, char * const argv[], 86 const char * options)); 87 extern int link P((const char * fromname, const char * toname)); 88 extern char * optarg; 89 extern int optind; 90 91 static void addtt P((time_t starttime, int type)); 92 static int addtype P((long gmtoff, const char * abbr, int isdst, 93 int ttisstd, int ttisgmt)); 94 static void leapadd P((time_t t, int positive, int rolling, int count)); 95 static void adjleap P((void)); 96 static void associate P((void)); 97 static int ciequal P((const char * ap, const char * bp)); 98 static void convert P((long val, char * buf)); 99 static void dolink P((const char * fromfile, const char * tofile)); 100 static void doabbr P((char * abbr, int abbrlen, const char * format, 101 const char * letters, int isdst)); 102 static void eat P((const char * name, int num)); 103 static void eats P((const char * name, int num, 104 const char * rname, int rnum)); 105 static long eitol P((int i)); 106 static void error P((const char * message)); 107 static char ** getfields P((char * buf)); 108 static long gethms P((const char * string, const char * errstrng, 109 int signable)); 110 static void infile P((const char * filename)); 111 static void inleap P((char ** fields, int nfields)); 112 static void inlink P((char ** fields, int nfields)); 113 static void inrule P((char ** fields, int nfields)); 114 static int inzcont P((char ** fields, int nfields)); 115 static int inzone P((char ** fields, int nfields)); 116 static int inzsub P((char ** fields, int nfields, int iscont)); 117 static int itsabbr P((const char * abbr, const char * word)); 118 static int itsdir P((const char * name)); 119 static int lowerit P((int c)); 120 static char * memcheck P((char * tocheck)); 121 static int mkdirs P((char * filename)); 122 static void newabbr P((const char * abbr)); 123 static long oadd P((long t1, long t2)); 124 static void outzone P((const struct zone * zp, int ntzones)); 125 static void puttzcode P((long code, FILE * fp)); 126 static int rcomp P((const void * leftp, const void * rightp)); 127 static time_t rpytime P((const struct rule * rp, int wantedy)); 128 static void rulesub P((struct rule * rp, 129 const char * loyearp, const char * hiyearp, 130 const char * typep, const char * monthp, 131 const char * dayp, const char * timep)); 132 static void setboundaries P((void)); 133 static time_t tadd P((time_t t1, long t2)); 134 static void usage P((void)); 135 static void writezone P((const char * name)); 136 static int yearistype P((int year, const char * type)); 137 138 #if !(HAVE_STRERROR - 0) 139 static char * strerror P((int)); 140 #endif /* !(HAVE_STRERROR - 0) */ 141 142 static int charcnt; 143 static int errors; 144 static const char * filename; 145 static int leapcnt; 146 static int linenum; 147 static time_t max_time; 148 static int max_year; 149 static int max_year_representable; 150 static time_t min_time; 151 static int min_year; 152 static int min_year_representable; 153 static int noise; 154 static const char * rfilename; 155 static int rlinenum; 156 static const char * progname; 157 static int timecnt; 158 static int typecnt; 159 160 /* 161 ** Line codes. 162 */ 163 164 #define LC_RULE 0 165 #define LC_ZONE 1 166 #define LC_LINK 2 167 #define LC_LEAP 3 168 169 /* 170 ** Which fields are which on a Zone line. 171 */ 172 173 #define ZF_NAME 1 174 #define ZF_GMTOFF 2 175 #define ZF_RULE 3 176 #define ZF_FORMAT 4 177 #define ZF_TILYEAR 5 178 #define ZF_TILMONTH 6 179 #define ZF_TILDAY 7 180 #define ZF_TILTIME 8 181 #define ZONE_MINFIELDS 5 182 #define ZONE_MAXFIELDS 9 183 184 /* 185 ** Which fields are which on a Zone continuation line. 186 */ 187 188 #define ZFC_GMTOFF 0 189 #define ZFC_RULE 1 190 #define ZFC_FORMAT 2 191 #define ZFC_TILYEAR 3 192 #define ZFC_TILMONTH 4 193 #define ZFC_TILDAY 5 194 #define ZFC_TILTIME 6 195 #define ZONEC_MINFIELDS 3 196 #define ZONEC_MAXFIELDS 7 197 198 /* 199 ** Which files are which on a Rule line. 200 */ 201 202 #define RF_NAME 1 203 #define RF_LOYEAR 2 204 #define RF_HIYEAR 3 205 #define RF_COMMAND 4 206 #define RF_MONTH 5 207 #define RF_DAY 6 208 #define RF_TOD 7 209 #define RF_STDOFF 8 210 #define RF_ABBRVAR 9 211 #define RULE_FIELDS 10 212 213 /* 214 ** Which fields are which on a Link line. 215 */ 216 217 #define LF_FROM 1 218 #define LF_TO 2 219 #define LINK_FIELDS 3 220 221 /* 222 ** Which fields are which on a Leap line. 223 */ 224 225 #define LP_YEAR 1 226 #define LP_MONTH 2 227 #define LP_DAY 3 228 #define LP_TIME 4 229 #define LP_CORR 5 230 #define LP_ROLL 6 231 #define LEAP_FIELDS 7 232 233 /* 234 ** Year synonyms. 235 */ 236 237 #define YR_MINIMUM 0 238 #define YR_MAXIMUM 1 239 #define YR_ONLY 2 240 241 static struct rule * rules; 242 static int nrules; /* number of rules */ 243 244 static struct zone * zones; 245 static int nzones; /* number of zones */ 246 247 struct link { 248 const char * l_filename; 249 int l_linenum; 250 const char * l_from; 251 const char * l_to; 252 }; 253 254 static struct link * links; 255 static int nlinks; 256 257 struct lookup { 258 const char * l_word; 259 const int l_value; 260 }; 261 262 static struct lookup const * byword P((const char * string, 263 const struct lookup * lp)); 264 265 static struct lookup const line_codes[] = { 266 { "Rule", LC_RULE }, 267 { "Zone", LC_ZONE }, 268 { "Link", LC_LINK }, 269 { "Leap", LC_LEAP }, 270 { NULL, 0} 271 }; 272 273 static struct lookup const mon_names[] = { 274 { "January", TM_JANUARY }, 275 { "February", TM_FEBRUARY }, 276 { "March", TM_MARCH }, 277 { "April", TM_APRIL }, 278 { "May", TM_MAY }, 279 { "June", TM_JUNE }, 280 { "July", TM_JULY }, 281 { "August", TM_AUGUST }, 282 { "September", TM_SEPTEMBER }, 283 { "October", TM_OCTOBER }, 284 { "November", TM_NOVEMBER }, 285 { "December", TM_DECEMBER }, 286 { NULL, 0 } 287 }; 288 289 static struct lookup const wday_names[] = { 290 { "Sunday", TM_SUNDAY }, 291 { "Monday", TM_MONDAY }, 292 { "Tuesday", TM_TUESDAY }, 293 { "Wednesday", TM_WEDNESDAY }, 294 { "Thursday", TM_THURSDAY }, 295 { "Friday", TM_FRIDAY }, 296 { "Saturday", TM_SATURDAY }, 297 { NULL, 0 } 298 }; 299 300 static struct lookup const lasts[] = { 301 { "last-Sunday", TM_SUNDAY }, 302 { "last-Monday", TM_MONDAY }, 303 { "last-Tuesday", TM_TUESDAY }, 304 { "last-Wednesday", TM_WEDNESDAY }, 305 { "last-Thursday", TM_THURSDAY }, 306 { "last-Friday", TM_FRIDAY }, 307 { "last-Saturday", TM_SATURDAY }, 308 { NULL, 0 } 309 }; 310 311 static struct lookup const begin_years[] = { 312 { "minimum", YR_MINIMUM }, 313 { "maximum", YR_MAXIMUM }, 314 { NULL, 0 } 315 }; 316 317 static struct lookup const end_years[] = { 318 { "minimum", YR_MINIMUM }, 319 { "maximum", YR_MAXIMUM }, 320 { "only", YR_ONLY }, 321 { NULL, 0 } 322 }; 323 324 static struct lookup const leap_types[] = { 325 { "Rolling", TRUE }, 326 { "Stationary", FALSE }, 327 { NULL, 0 } 328 }; 329 330 static const int len_months[2][MONSPERYEAR] = { 331 { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, 332 { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } 333 }; 334 335 static const int len_years[2] = { 336 DAYSPERNYEAR, DAYSPERLYEAR 337 }; 338 339 static struct attype { 340 time_t at; 341 unsigned char type; 342 } attypes[TZ_MAX_TIMES]; 343 static long gmtoffs[TZ_MAX_TYPES]; 344 static char isdsts[TZ_MAX_TYPES]; 345 static unsigned char abbrinds[TZ_MAX_TYPES]; 346 static char ttisstds[TZ_MAX_TYPES]; 347 static char ttisgmts[TZ_MAX_TYPES]; 348 static char chars[TZ_MAX_CHARS]; 349 static time_t trans[TZ_MAX_LEAPS]; 350 static long corr[TZ_MAX_LEAPS]; 351 static char roll[TZ_MAX_LEAPS]; 352 353 /* 354 ** Memory allocation. 355 */ 356 357 static char * 358 memcheck(ptr) 359 char * const ptr; 360 { 361 if (ptr == NULL) { 362 const char *e = strerror(errno); 363 364 (void) fprintf(stderr, _("%s: Memory exhausted: %s\n"), 365 progname, e); 366 (void) exit(EXIT_FAILURE); 367 } 368 return ptr; 369 } 370 371 #define emalloc(size) memcheck(imalloc(size)) 372 #define erealloc(ptr, size) memcheck(irealloc((ptr), (size))) 373 #define ecpyalloc(ptr) memcheck(icpyalloc(ptr)) 374 #define ecatalloc(oldp, newp) memcheck(icatalloc((oldp), (newp))) 375 376 /* 377 ** Error handling. 378 */ 379 380 #if !(HAVE_STRERROR - 0) 381 static char * 382 strerror(errnum) 383 int errnum; 384 { 385 extern char * sys_errlist[]; 386 extern int sys_nerr; 387 388 return (errnum > 0 && errnum <= sys_nerr) ? 389 sys_errlist[errnum] : "Unknown system error"; 390 } 391 #endif /* !(HAVE_STRERROR - 0) */ 392 393 static void 394 eats(name, num, rname, rnum) 395 const char * const name; 396 const int num; 397 const char * const rname; 398 const int rnum; 399 { 400 filename = name; 401 linenum = num; 402 rfilename = rname; 403 rlinenum = rnum; 404 } 405 406 static void 407 eat(name, num) 408 const char * const name; 409 const int num; 410 { 411 eats(name, num, (char *) NULL, -1); 412 } 413 414 static void 415 error(string) 416 const char * const string; 417 { 418 /* 419 ** Match the format of "cc" to allow sh users to 420 ** zic ... 2>&1 | error -t "*" -v 421 ** on BSD systems. 422 */ 423 (void) fprintf(stderr, _("\"%s\", line %d: %s"), 424 filename, linenum, string); 425 if (rfilename != NULL) 426 (void) fprintf(stderr, _(" (rule from \"%s\", line %d)"), 427 rfilename, rlinenum); 428 (void) fprintf(stderr, "\n"); 429 ++errors; 430 } 431 432 static void 433 warning(string) 434 const char * const string; 435 { 436 char * cp; 437 438 cp = ecpyalloc("warning: "); 439 cp = ecatalloc(cp, string); 440 error(cp); 441 ifree(cp); 442 --errors; 443 } 444 445 static void 446 usage P((void)) 447 { 448 (void) fprintf(stderr, _("%s: usage is %s [ -s ] [ -v ] [ -l localtime ] [ -p posixrules ] [ -d directory ]\n\t[ -L leapseconds ] [ -y yearistype ] [ filename ... ]\n"), 449 progname, progname); 450 (void) exit(EXIT_FAILURE); 451 } 452 453 static const char * psxrules; 454 static const char * lcltime; 455 static const char * directory; 456 static const char * leapsec; 457 static const char * yitcommand; 458 static int sflag = FALSE; 459 460 int 461 main(argc, argv) 462 int argc; 463 char * argv[]; 464 { 465 register int i; 466 register int j; 467 register int c; 468 469 #ifdef unix 470 (void) umask(umask(S_IWGRP | S_IWOTH) | (S_IWGRP | S_IWOTH)); 471 #endif /* defined unix */ 472 #if HAVE_GETTEXT - 0 473 (void) setlocale(LC_MESSAGES, ""); 474 #ifdef TZ_DOMAINDIR 475 (void) bindtextdomain(TZ_DOMAIN, TZ_DOMAINDIR); 476 #endif /* defined TEXTDOMAINDIR */ 477 (void) textdomain(TZ_DOMAIN); 478 #endif /* HAVE_GETTEXT - 0 */ 479 progname = argv[0]; 480 while ((c = getopt(argc, argv, "d:l:p:L:vsy:")) != EOF && c != -1) 481 switch (c) { 482 default: 483 usage(); 484 case 'd': 485 if (directory == NULL) 486 directory = optarg; 487 else { 488 (void) fprintf(stderr, 489 _("%s: More than one -d option specified\n"), 490 progname); 491 (void) exit(EXIT_FAILURE); 492 } 493 break; 494 case 'l': 495 if (lcltime == NULL) 496 lcltime = optarg; 497 else { 498 (void) fprintf(stderr, 499 _("%s: More than one -l option specified\n"), 500 progname); 501 (void) exit(EXIT_FAILURE); 502 } 503 break; 504 case 'p': 505 if (psxrules == NULL) 506 psxrules = optarg; 507 else { 508 (void) fprintf(stderr, 509 _("%s: More than one -p option specified\n"), 510 progname); 511 (void) exit(EXIT_FAILURE); 512 } 513 break; 514 case 'y': 515 if (yitcommand == NULL) 516 yitcommand = optarg; 517 else { 518 (void) fprintf(stderr, 519 _("%s: More than one -y option specified\n"), 520 progname); 521 (void) exit(EXIT_FAILURE); 522 } 523 break; 524 case 'L': 525 if (leapsec == NULL) 526 leapsec = optarg; 527 else { 528 (void) fprintf(stderr, 529 _("%s: More than one -L option specified\n"), 530 progname); 531 (void) exit(EXIT_FAILURE); 532 } 533 break; 534 case 'v': 535 noise = TRUE; 536 break; 537 case 's': 538 sflag = TRUE; 539 break; 540 } 541 if (optind == argc - 1 && strcmp(argv[optind], "=") == 0) 542 usage(); /* usage message by request */ 543 if (directory == NULL) 544 directory = TZDIR; 545 if (yitcommand == NULL) 546 yitcommand = "yearistype"; 547 548 setboundaries(); 549 550 if (optind < argc && leapsec != NULL) { 551 infile(leapsec); 552 adjleap(); 553 } 554 555 for (i = optind; i < argc; ++i) 556 infile(argv[i]); 557 if (errors) 558 (void) exit(EXIT_FAILURE); 559 associate(); 560 for (i = 0; i < nzones; i = j) { 561 /* 562 ** Find the next non-continuation zone entry. 563 */ 564 for (j = i + 1; j < nzones && zones[j].z_name == NULL; ++j) 565 continue; 566 outzone(&zones[i], j - i); 567 } 568 /* 569 ** Make links. 570 */ 571 for (i = 0; i < nlinks; ++i) 572 dolink(links[i].l_from, links[i].l_to); 573 if (lcltime != NULL) 574 dolink(lcltime, TZDEFAULT); 575 if (psxrules != NULL) 576 dolink(psxrules, TZDEFRULES); 577 return (errors == 0) ? EXIT_SUCCESS : EXIT_FAILURE; 578 } 579 580 static void 581 dolink(fromfile, tofile) 582 const char * const fromfile; 583 const char * const tofile; 584 { 585 register char * fromname; 586 register char * toname; 587 588 if (fromfile[0] == '/') 589 fromname = ecpyalloc(fromfile); 590 else { 591 fromname = ecpyalloc(directory); 592 fromname = ecatalloc(fromname, "/"); 593 fromname = ecatalloc(fromname, fromfile); 594 } 595 if (tofile[0] == '/') 596 toname = ecpyalloc(tofile); 597 else { 598 toname = ecpyalloc(directory); 599 toname = ecatalloc(toname, "/"); 600 toname = ecatalloc(toname, tofile); 601 } 602 /* 603 ** We get to be careful here since 604 ** there's a fair chance of root running us. 605 */ 606 if (!itsdir(toname)) 607 (void) remove(toname); 608 if (link(fromname, toname) != 0) { 609 if (mkdirs(toname) != 0) 610 (void) exit(EXIT_FAILURE); 611 if (link(fromname, toname) != 0) { 612 const char *e = strerror(errno); 613 614 (void) fprintf(stderr, 615 _("%s: Can't link from %s to %s: %s\n"), 616 progname, fromname, toname, e); 617 (void) exit(EXIT_FAILURE); 618 } 619 } 620 ifree(fromname); 621 ifree(toname); 622 } 623 624 #ifndef INT_MAX 625 #define INT_MAX ((int) (((unsigned)~0)>>1)) 626 #endif /* !defined INT_MAX */ 627 628 #ifndef INT_MIN 629 #define INT_MIN ((int) ~(((unsigned)~0)>>1)) 630 #endif /* !defined INT_MIN */ 631 632 /* 633 ** The tz file format currently allows at most 32-bit quantities. 634 ** This restriction should be removed before signed 32-bit values 635 ** wrap around in 2038, but unfortunately this will require a 636 ** change to the tz file format. 637 */ 638 639 #define MAX_BITS_IN_FILE 32 640 #define TIME_T_BITS_IN_FILE ((TYPE_BIT(time_t) < MAX_BITS_IN_FILE) ? TYPE_BIT(time_t) : MAX_BITS_IN_FILE) 641 642 static void 643 setboundaries P((void)) 644 { 645 if (TYPE_SIGNED(time_t)) { 646 min_time = ~ (time_t) 0; 647 min_time <<= TIME_T_BITS_IN_FILE - 1; 648 max_time = ~ (time_t) 0 - min_time; 649 if (sflag) 650 min_time = 0; 651 } else { 652 min_time = 0; 653 max_time = 2 - sflag; 654 max_time <<= TIME_T_BITS_IN_FILE - 1; 655 --max_time; 656 } 657 min_year = TM_YEAR_BASE + gmtime(&min_time)->tm_year; 658 max_year = TM_YEAR_BASE + gmtime(&max_time)->tm_year; 659 min_year_representable = min_year; 660 max_year_representable = max_year; 661 } 662 663 static int 664 itsdir(name) 665 const char * const name; 666 { 667 register char * myname; 668 register int accres; 669 670 myname = ecpyalloc(name); 671 myname = ecatalloc(myname, "/."); 672 accres = access(myname, F_OK); 673 ifree(myname); 674 return accres == 0; 675 } 676 677 /* 678 ** Associate sets of rules with zones. 679 */ 680 681 /* 682 ** Sort by rule name. 683 */ 684 685 static int 686 rcomp(cp1, cp2) 687 const void * cp1; 688 const void * cp2; 689 { 690 return strcmp(((const struct rule *) cp1)->r_name, 691 ((const struct rule *) cp2)->r_name); 692 } 693 694 static void 695 associate P((void)) 696 { 697 register struct zone * zp; 698 register struct rule * rp; 699 register int base, out; 700 register int i, j; 701 702 if (nrules != 0) { 703 (void) qsort((void *) rules, (size_t) nrules, 704 (size_t) sizeof *rules, rcomp); 705 for (i = 0; i < nrules - 1; ++i) { 706 if (strcmp(rules[i].r_name, 707 rules[i + 1].r_name) != 0) 708 continue; 709 if (strcmp(rules[i].r_filename, 710 rules[i + 1].r_filename) == 0) 711 continue; 712 eat(rules[i].r_filename, rules[i].r_linenum); 713 warning(_("same rule name in multiple files")); 714 eat(rules[i + 1].r_filename, rules[i + 1].r_linenum); 715 warning(_("same rule name in multiple files")); 716 for (j = i + 2; j < nrules; ++j) { 717 if (strcmp(rules[i].r_name, 718 rules[j].r_name) != 0) 719 break; 720 if (strcmp(rules[i].r_filename, 721 rules[j].r_filename) == 0) 722 continue; 723 if (strcmp(rules[i + 1].r_filename, 724 rules[j].r_filename) == 0) 725 continue; 726 break; 727 } 728 i = j - 1; 729 } 730 } 731 for (i = 0; i < nzones; ++i) { 732 zp = &zones[i]; 733 zp->z_rules = NULL; 734 zp->z_nrules = 0; 735 } 736 for (base = 0; base < nrules; base = out) { 737 rp = &rules[base]; 738 for (out = base + 1; out < nrules; ++out) 739 if (strcmp(rp->r_name, rules[out].r_name) != 0) 740 break; 741 for (i = 0; i < nzones; ++i) { 742 zp = &zones[i]; 743 if (strcmp(zp->z_rule, rp->r_name) != 0) 744 continue; 745 zp->z_rules = rp; 746 zp->z_nrules = out - base; 747 } 748 } 749 for (i = 0; i < nzones; ++i) { 750 zp = &zones[i]; 751 if (zp->z_nrules == 0) { 752 /* 753 ** Maybe we have a local standard time offset. 754 */ 755 eat(zp->z_filename, zp->z_linenum); 756 zp->z_stdoff = gethms(zp->z_rule, _("unruly zone"), 757 TRUE); 758 /* 759 ** Note, though, that if there's no rule, 760 ** a '%s' in the format is a bad thing. 761 */ 762 if (strchr(zp->z_format, '%') != 0) 763 error(_("%s in ruleless zone")); 764 } 765 } 766 if (errors) 767 (void) exit(EXIT_FAILURE); 768 } 769 770 static void 771 infile(name) 772 const char * name; 773 { 774 register FILE * fp; 775 register char ** fields; 776 register char * cp; 777 register const struct lookup * lp; 778 register int nfields; 779 register int wantcont; 780 register int num; 781 char buf[BUFSIZ]; 782 783 if (strcmp(name, "-") == 0) { 784 name = _("standard input"); 785 fp = stdin; 786 } else if ((fp = fopen(name, "r")) == NULL) { 787 const char *e = strerror(errno); 788 789 (void) fprintf(stderr, _("%s: Can't open %s: %s\n"), 790 progname, name, e); 791 (void) exit(EXIT_FAILURE); 792 } 793 wantcont = FALSE; 794 for (num = 1; ; ++num) { 795 eat(name, num); 796 if (fgets(buf, (int) sizeof buf, fp) != buf) 797 break; 798 cp = strchr(buf, '\n'); 799 if (cp == NULL) { 800 error(_("line too long")); 801 (void) exit(EXIT_FAILURE); 802 } 803 *cp = '\0'; 804 fields = getfields(buf); 805 nfields = 0; 806 while (fields[nfields] != NULL) { 807 static char nada; 808 809 if (strcmp(fields[nfields], "-") == 0) 810 fields[nfields] = &nada; 811 ++nfields; 812 } 813 if (nfields == 0) { 814 /* nothing to do */ 815 } else if (wantcont) { 816 wantcont = inzcont(fields, nfields); 817 } else { 818 lp = byword(fields[0], line_codes); 819 if (lp == NULL) 820 error(_("input line of unknown type")); 821 else switch ((int) (lp->l_value)) { 822 case LC_RULE: 823 inrule(fields, nfields); 824 wantcont = FALSE; 825 break; 826 case LC_ZONE: 827 wantcont = inzone(fields, nfields); 828 break; 829 case LC_LINK: 830 inlink(fields, nfields); 831 wantcont = FALSE; 832 break; 833 case LC_LEAP: 834 if (name != leapsec) 835 (void) fprintf(stderr, 836 _("%s: Leap line in non leap seconds file %s\n"), 837 progname, name); 838 else inleap(fields, nfields); 839 wantcont = FALSE; 840 break; 841 default: /* "cannot happen" */ 842 (void) fprintf(stderr, 843 _("%s: panic: Invalid l_value %d\n"), 844 progname, lp->l_value); 845 (void) exit(EXIT_FAILURE); 846 } 847 } 848 ifree((char *) fields); 849 } 850 if (ferror(fp)) { 851 (void) fprintf(stderr, _("%s: Error reading %s\n"), 852 progname, filename); 853 (void) exit(EXIT_FAILURE); 854 } 855 if (fp != stdin && fclose(fp)) { 856 const char *e = strerror(errno); 857 858 (void) fprintf(stderr, _("%s: Error closing %s: %s\n"), 859 progname, filename, e); 860 (void) exit(EXIT_FAILURE); 861 } 862 if (wantcont) 863 error(_("expected continuation line not found")); 864 } 865 866 /* 867 ** Convert a string of one of the forms 868 ** h -h hh:mm -hh:mm hh:mm:ss -hh:mm:ss 869 ** into a number of seconds. 870 ** A null string maps to zero. 871 ** Call error with errstring and return zero on errors. 872 */ 873 874 static long 875 gethms(string, errstring, signable) 876 const char * string; 877 const char * const errstring; 878 const int signable; 879 { 880 int hh, mm, ss, sign; 881 882 if (string == NULL || *string == '\0') 883 return 0; 884 if (!signable) 885 sign = 1; 886 else if (*string == '-') { 887 sign = -1; 888 ++string; 889 } else sign = 1; 890 if (sscanf(string, scheck(string, "%d"), &hh) == 1) 891 mm = ss = 0; 892 else if (sscanf(string, scheck(string, "%d:%d"), &hh, &mm) == 2) 893 ss = 0; 894 else if (sscanf(string, scheck(string, "%d:%d:%d"), 895 &hh, &mm, &ss) != 3) { 896 error(errstring); 897 return 0; 898 } 899 if (hh < 0 || hh >= HOURSPERDAY || 900 mm < 0 || mm >= MINSPERHOUR || 901 ss < 0 || ss > SECSPERMIN) { 902 error(errstring); 903 return 0; 904 } 905 return eitol(sign) * 906 (eitol(hh * MINSPERHOUR + mm) * 907 eitol(SECSPERMIN) + eitol(ss)); 908 } 909 910 static void 911 inrule(fields, nfields) 912 register char ** const fields; 913 const int nfields; 914 { 915 static struct rule r; 916 917 if (nfields != RULE_FIELDS) { 918 error(_("wrong number of fields on Rule line")); 919 return; 920 } 921 if (*fields[RF_NAME] == '\0') { 922 error(_("nameless rule")); 923 return; 924 } 925 r.r_filename = filename; 926 r.r_linenum = linenum; 927 r.r_stdoff = gethms(fields[RF_STDOFF], _("invalid saved time"), TRUE); 928 rulesub(&r, fields[RF_LOYEAR], fields[RF_HIYEAR], fields[RF_COMMAND], 929 fields[RF_MONTH], fields[RF_DAY], fields[RF_TOD]); 930 r.r_name = ecpyalloc(fields[RF_NAME]); 931 r.r_abbrvar = ecpyalloc(fields[RF_ABBRVAR]); 932 rules = (struct rule *) (void *) erealloc((char *) rules, 933 (int) ((nrules + 1) * sizeof *rules)); 934 rules[nrules++] = r; 935 } 936 937 static int 938 inzone(fields, nfields) 939 register char ** const fields; 940 const int nfields; 941 { 942 register int i; 943 static char * buf; 944 945 if (nfields < ZONE_MINFIELDS || nfields > ZONE_MAXFIELDS) { 946 error(_("wrong number of fields on Zone line")); 947 return FALSE; 948 } 949 if (strcmp(fields[ZF_NAME], TZDEFAULT) == 0 && lcltime != NULL) { 950 buf = erealloc(buf, (int) (132 + strlen(TZDEFAULT))); 951 (void)sprintf(buf, /* XXX: sprintf is safe */ 952 _("\"Zone %s\" line and -l option are mutually exclusive"), 953 TZDEFAULT); 954 error(buf); 955 return FALSE; 956 } 957 if (strcmp(fields[ZF_NAME], TZDEFRULES) == 0 && psxrules != NULL) { 958 buf = erealloc(buf, (int) (132 + strlen(TZDEFRULES))); 959 (void)sprintf(buf, /* XXX: sprintf is safe */ 960 _("\"Zone %s\" line and -p option are mutually exclusive"), 961 TZDEFRULES); 962 error(buf); 963 return FALSE; 964 } 965 for (i = 0; i < nzones; ++i) 966 if (zones[i].z_name != NULL && 967 strcmp(zones[i].z_name, fields[ZF_NAME]) == 0) { 968 buf = erealloc(buf, (int) (132 + 969 strlen(fields[ZF_NAME]) + 970 strlen(zones[i].z_filename))); 971 (void)sprintf(buf, /* XXX: sprintf is safe */ 972 _("duplicate zone name %s (file \"%s\", line %d)"), 973 fields[ZF_NAME], 974 zones[i].z_filename, 975 zones[i].z_linenum); 976 error(buf); 977 return FALSE; 978 } 979 return inzsub(fields, nfields, FALSE); 980 } 981 982 static int 983 inzcont(fields, nfields) 984 register char ** const fields; 985 const int nfields; 986 { 987 if (nfields < ZONEC_MINFIELDS || nfields > ZONEC_MAXFIELDS) { 988 error(_("wrong number of fields on Zone continuation line")); 989 return FALSE; 990 } 991 return inzsub(fields, nfields, TRUE); 992 } 993 994 static int 995 inzsub(fields, nfields, iscont) 996 register char ** const fields; 997 const int nfields; 998 const int iscont; 999 { 1000 register char * cp; 1001 static struct zone z; 1002 register int i_gmtoff, i_rule, i_format; 1003 register int i_untilyear, i_untilmonth; 1004 register int i_untilday, i_untiltime; 1005 register int hasuntil; 1006 1007 if (iscont) { 1008 i_gmtoff = ZFC_GMTOFF; 1009 i_rule = ZFC_RULE; 1010 i_format = ZFC_FORMAT; 1011 i_untilyear = ZFC_TILYEAR; 1012 i_untilmonth = ZFC_TILMONTH; 1013 i_untilday = ZFC_TILDAY; 1014 i_untiltime = ZFC_TILTIME; 1015 z.z_name = NULL; 1016 } else { 1017 i_gmtoff = ZF_GMTOFF; 1018 i_rule = ZF_RULE; 1019 i_format = ZF_FORMAT; 1020 i_untilyear = ZF_TILYEAR; 1021 i_untilmonth = ZF_TILMONTH; 1022 i_untilday = ZF_TILDAY; 1023 i_untiltime = ZF_TILTIME; 1024 z.z_name = ecpyalloc(fields[ZF_NAME]); 1025 } 1026 z.z_filename = filename; 1027 z.z_linenum = linenum; 1028 z.z_gmtoff = gethms(fields[i_gmtoff], _("invalid GMT offset"), TRUE); 1029 if ((cp = strchr(fields[i_format], '%')) != 0) { 1030 if (*++cp != 's' || strchr(cp, '%') != 0) { 1031 error(_("invalid abbreviation format")); 1032 return FALSE; 1033 } 1034 } 1035 z.z_rule = ecpyalloc(fields[i_rule]); 1036 z.z_format = ecpyalloc(fields[i_format]); 1037 hasuntil = nfields > i_untilyear; 1038 if (hasuntil) { 1039 z.z_untilrule.r_filename = filename; 1040 z.z_untilrule.r_linenum = linenum; 1041 rulesub(&z.z_untilrule, 1042 fields[i_untilyear], 1043 "only", 1044 "", 1045 (nfields > i_untilmonth) ? 1046 fields[i_untilmonth] : "Jan", 1047 (nfields > i_untilday) ? fields[i_untilday] : "1", 1048 (nfields > i_untiltime) ? fields[i_untiltime] : "0"); 1049 z.z_untiltime = rpytime(&z.z_untilrule, 1050 z.z_untilrule.r_loyear); 1051 if (iscont && nzones > 0 && 1052 z.z_untiltime > min_time && 1053 z.z_untiltime < max_time && 1054 zones[nzones - 1].z_untiltime > min_time && 1055 zones[nzones - 1].z_untiltime < max_time && 1056 zones[nzones - 1].z_untiltime >= z.z_untiltime) { 1057 error(_("Zone continuation line end time is not after end time of previous line")); 1058 return FALSE; 1059 } 1060 } 1061 zones = (struct zone *) (void *) erealloc((char *) zones, 1062 (int) ((nzones + 1) * sizeof *zones)); 1063 zones[nzones++] = z; 1064 /* 1065 ** If there was an UNTIL field on this line, 1066 ** there's more information about the zone on the next line. 1067 */ 1068 return hasuntil; 1069 } 1070 1071 static void 1072 inleap(fields, nfields) 1073 register char ** const fields; 1074 const int nfields; 1075 { 1076 register const char * cp; 1077 register const struct lookup * lp; 1078 register int i, j; 1079 int year, month, day; 1080 long dayoff, tod; 1081 time_t t; 1082 1083 if (nfields != LEAP_FIELDS) { 1084 error(_("wrong number of fields on Leap line")); 1085 return; 1086 } 1087 dayoff = 0; 1088 cp = fields[LP_YEAR]; 1089 if (sscanf(cp, scheck(cp, "%d"), &year) != 1) { 1090 /* 1091 * Leapin' Lizards! 1092 */ 1093 error(_("invalid leaping year")); 1094 return; 1095 } 1096 j = EPOCH_YEAR; 1097 while (j != year) { 1098 if (year > j) { 1099 i = len_years[isleap(j)]; 1100 ++j; 1101 } else { 1102 --j; 1103 i = -len_years[isleap(j)]; 1104 } 1105 dayoff = oadd(dayoff, eitol(i)); 1106 } 1107 if ((lp = byword(fields[LP_MONTH], mon_names)) == NULL) { 1108 error(_("invalid month name")); 1109 return; 1110 } 1111 month = lp->l_value; 1112 j = TM_JANUARY; 1113 while (j != month) { 1114 i = len_months[isleap(year)][j]; 1115 dayoff = oadd(dayoff, eitol(i)); 1116 ++j; 1117 } 1118 cp = fields[LP_DAY]; 1119 if (sscanf(cp, scheck(cp, "%d"), &day) != 1 || 1120 day <= 0 || day > len_months[isleap(year)][month]) { 1121 error(_("invalid day of month")); 1122 return; 1123 } 1124 dayoff = oadd(dayoff, eitol(day - 1)); 1125 if (dayoff < 0 && !TYPE_SIGNED(time_t)) { 1126 error(_("time before zero")); 1127 return; 1128 } 1129 t = (time_t) dayoff * SECSPERDAY; 1130 /* 1131 ** Cheap overflow check. 1132 */ 1133 if (t / SECSPERDAY != dayoff) { 1134 error(_("time overflow")); 1135 return; 1136 } 1137 tod = gethms(fields[LP_TIME], _("invalid time of day"), FALSE); 1138 cp = fields[LP_CORR]; 1139 { 1140 register int positive; 1141 int count; 1142 1143 if (strcmp(cp, "") == 0) { /* infile() turns "-" into "" */ 1144 positive = FALSE; 1145 count = 1; 1146 } else if (strcmp(cp, "--") == 0) { 1147 positive = FALSE; 1148 count = 2; 1149 } else if (strcmp(cp, "+") == 0) { 1150 positive = TRUE; 1151 count = 1; 1152 } else if (strcmp(cp, "++") == 0) { 1153 positive = TRUE; 1154 count = 2; 1155 } else { 1156 error(_("illegal CORRECTION field on Leap line")); 1157 return; 1158 } 1159 if ((lp = byword(fields[LP_ROLL], leap_types)) == NULL) { 1160 error(_("illegal Rolling/Stationary field on Leap line")); 1161 return; 1162 } 1163 leapadd(tadd(t, tod), positive, lp->l_value, count); 1164 } 1165 } 1166 1167 static void 1168 inlink(fields, nfields) 1169 register char ** const fields; 1170 const int nfields; 1171 { 1172 struct link l; 1173 1174 if (nfields != LINK_FIELDS) { 1175 error(_("wrong number of fields on Link line")); 1176 return; 1177 } 1178 if (*fields[LF_FROM] == '\0') { 1179 error(_("blank FROM field on Link line")); 1180 return; 1181 } 1182 if (*fields[LF_TO] == '\0') { 1183 error(_("blank TO field on Link line")); 1184 return; 1185 } 1186 l.l_filename = filename; 1187 l.l_linenum = linenum; 1188 l.l_from = ecpyalloc(fields[LF_FROM]); 1189 l.l_to = ecpyalloc(fields[LF_TO]); 1190 links = (struct link *) (void *) erealloc((char *) links, 1191 (int) ((nlinks + 1) * sizeof *links)); 1192 links[nlinks++] = l; 1193 } 1194 1195 static void 1196 rulesub(rp, loyearp, hiyearp, typep, monthp, dayp, timep) 1197 register struct rule * const rp; 1198 const char * const loyearp; 1199 const char * const hiyearp; 1200 const char * const typep; 1201 const char * const monthp; 1202 const char * const dayp; 1203 const char * const timep; 1204 { 1205 register const struct lookup * lp; 1206 register const char * cp; 1207 register char * dp; 1208 register char * ep; 1209 1210 if ((lp = byword(monthp, mon_names)) == NULL) { 1211 error(_("invalid month name")); 1212 return; 1213 } 1214 rp->r_month = lp->l_value; 1215 rp->r_todisstd = FALSE; 1216 rp->r_todisgmt = FALSE; 1217 dp = ecpyalloc(timep); 1218 if (*dp != '\0') { 1219 ep = dp + strlen(dp) - 1; 1220 switch (lowerit(*ep)) { 1221 case 's': /* Standard */ 1222 rp->r_todisstd = TRUE; 1223 rp->r_todisgmt = FALSE; 1224 *ep = '\0'; 1225 break; 1226 case 'w': /* Wall */ 1227 rp->r_todisstd = FALSE; 1228 rp->r_todisgmt = FALSE; 1229 *ep = '\0'; 1230 break; 1231 case 'g': /* Greenwich */ 1232 case 'u': /* Universal */ 1233 case 'z': /* Zulu */ 1234 rp->r_todisstd = TRUE; 1235 rp->r_todisgmt = TRUE; 1236 *ep = '\0'; 1237 break; 1238 } 1239 } 1240 rp->r_tod = gethms(dp, _("invalid time of day"), FALSE); 1241 ifree(dp); 1242 /* 1243 ** Year work. 1244 */ 1245 cp = loyearp; 1246 lp = byword(cp, begin_years); 1247 if (lp != NULL) switch ((int) lp->l_value) { 1248 case YR_MINIMUM: 1249 rp->r_loyear = INT_MIN; 1250 break; 1251 case YR_MAXIMUM: 1252 rp->r_loyear = INT_MAX; 1253 break; 1254 default: /* "cannot happen" */ 1255 (void) fprintf(stderr, 1256 _("%s: panic: Invalid l_value %d\n"), 1257 progname, lp->l_value); 1258 (void) exit(EXIT_FAILURE); 1259 } else if (sscanf(cp, scheck(cp, "%d"), &rp->r_loyear) != 1) { 1260 error(_("invalid starting year")); 1261 return; 1262 } else if (noise) 1263 if (rp->r_loyear < min_year_representable) 1264 warning(_("starting year too low to be represented")); 1265 else if (rp->r_loyear > max_year_representable) 1266 warning(_("starting year too high to be represented")); 1267 cp = hiyearp; 1268 if ((lp = byword(cp, end_years)) != NULL) switch ((int) lp->l_value) { 1269 case YR_MINIMUM: 1270 rp->r_hiyear = INT_MIN; 1271 break; 1272 case YR_MAXIMUM: 1273 rp->r_hiyear = INT_MAX; 1274 break; 1275 case YR_ONLY: 1276 rp->r_hiyear = rp->r_loyear; 1277 break; 1278 default: /* "cannot happen" */ 1279 (void) fprintf(stderr, 1280 _("%s: panic: Invalid l_value %d\n"), 1281 progname, lp->l_value); 1282 (void) exit(EXIT_FAILURE); 1283 } else if (sscanf(cp, scheck(cp, "%d"), &rp->r_hiyear) != 1) { 1284 error(_("invalid ending year")); 1285 return; 1286 } else if (noise) 1287 if (rp->r_loyear < min_year_representable) 1288 warning(_("starting year too low to be represented")); 1289 else if (rp->r_loyear > max_year_representable) 1290 warning(_("starting year too high to be represented")); 1291 if (rp->r_loyear > rp->r_hiyear) { 1292 error(_("starting year greater than ending year")); 1293 return; 1294 } 1295 if (*typep == '\0') 1296 rp->r_yrtype = NULL; 1297 else { 1298 if (rp->r_loyear == rp->r_hiyear) { 1299 error(_("typed single year")); 1300 return; 1301 } 1302 rp->r_yrtype = ecpyalloc(typep); 1303 } 1304 if (rp->r_loyear < min_year && rp->r_loyear > 0) 1305 min_year = rp->r_loyear; 1306 /* 1307 ** Day work. 1308 ** Accept things such as: 1309 ** 1 1310 ** last-Sunday 1311 ** Sun<=20 1312 ** Sun>=7 1313 */ 1314 dp = ecpyalloc(dayp); 1315 if ((lp = byword(dp, lasts)) != NULL) { 1316 rp->r_dycode = DC_DOWLEQ; 1317 rp->r_wday = lp->l_value; 1318 rp->r_dayofmonth = len_months[1][rp->r_month]; 1319 } else { 1320 if ((ep = strchr(dp, '<')) != 0) 1321 rp->r_dycode = DC_DOWLEQ; 1322 else if ((ep = strchr(dp, '>')) != 0) 1323 rp->r_dycode = DC_DOWGEQ; 1324 else { 1325 ep = dp; 1326 rp->r_dycode = DC_DOM; 1327 } 1328 if (rp->r_dycode != DC_DOM) { 1329 *ep++ = 0; 1330 if (*ep++ != '=') { 1331 error(_("invalid day of month")); 1332 ifree(dp); 1333 return; 1334 } 1335 if ((lp = byword(dp, wday_names)) == NULL) { 1336 error(_("invalid weekday name")); 1337 ifree(dp); 1338 return; 1339 } 1340 rp->r_wday = lp->l_value; 1341 } 1342 if (sscanf(ep, scheck(ep, "%d"), &rp->r_dayofmonth) != 1 || 1343 rp->r_dayofmonth <= 0 || 1344 (rp->r_dayofmonth > len_months[1][rp->r_month])) { 1345 error(_("invalid day of month")); 1346 ifree(dp); 1347 return; 1348 } 1349 } 1350 ifree(dp); 1351 } 1352 1353 static void 1354 convert(val, buf) 1355 const long val; 1356 char * const buf; 1357 { 1358 register int i; 1359 register long shift; 1360 1361 for (i = 0, shift = 24; i < 4; ++i, shift -= 8) 1362 buf[i] = val >> shift; 1363 } 1364 1365 static void 1366 puttzcode(val, fp) 1367 const long val; 1368 FILE * const fp; 1369 { 1370 char buf[4]; 1371 1372 convert(val, buf); 1373 (void) fwrite((void *) buf, (size_t) sizeof buf, (size_t) 1, fp); 1374 } 1375 1376 static int 1377 atcomp(avp, bvp) 1378 void * avp; 1379 void * bvp; 1380 { 1381 if (((struct attype *) avp)->at < ((struct attype *) bvp)->at) 1382 return -1; 1383 else if (((struct attype *) avp)->at > ((struct attype *) bvp)->at) 1384 return 1; 1385 else return 0; 1386 } 1387 1388 static void 1389 writezone(name) 1390 const char * const name; 1391 { 1392 register FILE * fp; 1393 register int i, j; 1394 static char * fullname; 1395 static struct tzhead tzh; 1396 time_t ats[TZ_MAX_TIMES]; 1397 unsigned char types[TZ_MAX_TIMES]; 1398 1399 /* 1400 ** Sort. 1401 */ 1402 if (timecnt > 1) 1403 (void) qsort((void *) attypes, (size_t) timecnt, 1404 (size_t) sizeof *attypes, atcomp); 1405 /* 1406 ** Optimize. 1407 */ 1408 { 1409 int fromi; 1410 int toi; 1411 1412 toi = 0; 1413 fromi = 0; 1414 while (fromi < timecnt && attypes[fromi].at < min_time) 1415 ++fromi; 1416 if (isdsts[0] == 0) 1417 while (fromi < timecnt && attypes[fromi].type == 0) 1418 ++fromi; /* handled by default rule */ 1419 for ( ; fromi < timecnt; ++fromi) { 1420 if (toi != 0 1421 && ((attypes[fromi].at 1422 + gmtoffs[attypes[toi - 1].type]) 1423 <= (attypes[toi - 1].at 1424 + gmtoffs[toi == 1 ? 0 1425 : attypes[toi - 2].type]))) { 1426 attypes[toi - 1].type = attypes[fromi].type; 1427 continue; 1428 } 1429 if (toi == 0 || 1430 attypes[toi - 1].type != attypes[fromi].type) 1431 attypes[toi++] = attypes[fromi]; 1432 } 1433 timecnt = toi; 1434 } 1435 /* 1436 ** Transfer. 1437 */ 1438 for (i = 0; i < timecnt; ++i) { 1439 ats[i] = attypes[i].at; 1440 types[i] = attypes[i].type; 1441 } 1442 fullname = erealloc(fullname, 1443 (int) (strlen(directory) + 1 + strlen(name) + 1)); 1444 (void) sprintf(fullname, "%s/%s", directory, name); /* XXX: sprintf is safe */ 1445 /* 1446 ** Remove old file, if any, to snap links. 1447 */ 1448 if (!itsdir(fullname) && remove(fullname) != 0 && errno != ENOENT) { 1449 const char *e = strerror(errno); 1450 1451 (void) fprintf(stderr, _("%s: Can't remove %s: %s\n"), 1452 progname, fullname, e); 1453 (void) exit(EXIT_FAILURE); 1454 } 1455 if ((fp = fopen(fullname, "wb")) == NULL) { 1456 if (mkdirs(fullname) != 0) 1457 (void) exit(EXIT_FAILURE); 1458 if ((fp = fopen(fullname, "wb")) == NULL) { 1459 const char *e = strerror(errno); 1460 1461 (void) fprintf(stderr, _("%s: Can't create %s: %s\n"), 1462 progname, fullname, e); 1463 (void) exit(EXIT_FAILURE); 1464 } 1465 } 1466 convert(eitol(typecnt), tzh.tzh_ttisgmtcnt); 1467 convert(eitol(typecnt), tzh.tzh_ttisstdcnt); 1468 convert(eitol(leapcnt), tzh.tzh_leapcnt); 1469 convert(eitol(timecnt), tzh.tzh_timecnt); 1470 convert(eitol(typecnt), tzh.tzh_typecnt); 1471 convert(eitol(charcnt), tzh.tzh_charcnt); 1472 #define DO(field) (void) fwrite((void *) tzh.field, (size_t) sizeof tzh.field, (size_t) 1, fp) 1473 DO(tzh_reserved); 1474 DO(tzh_ttisgmtcnt); 1475 DO(tzh_ttisstdcnt); 1476 DO(tzh_leapcnt); 1477 DO(tzh_timecnt); 1478 DO(tzh_typecnt); 1479 DO(tzh_charcnt); 1480 #undef DO 1481 for (i = 0; i < timecnt; ++i) { 1482 j = leapcnt; 1483 while (--j >= 0) 1484 if (ats[i] >= trans[j]) { 1485 ats[i] = tadd(ats[i], corr[j]); 1486 break; 1487 } 1488 puttzcode((long) ats[i], fp); 1489 } 1490 if (timecnt > 0) 1491 (void) fwrite((void *) types, (size_t) sizeof types[0], 1492 (size_t) timecnt, fp); 1493 for (i = 0; i < typecnt; ++i) { 1494 puttzcode((long) gmtoffs[i], fp); 1495 (void) putc(isdsts[i], fp); 1496 (void) putc(abbrinds[i], fp); 1497 } 1498 if (charcnt != 0) 1499 (void) fwrite((void *) chars, (size_t) sizeof chars[0], 1500 (size_t) charcnt, fp); 1501 for (i = 0; i < leapcnt; ++i) { 1502 if (roll[i]) { 1503 if (timecnt == 0 || trans[i] < ats[0]) { 1504 j = 0; 1505 while (isdsts[j]) 1506 if (++j >= typecnt) { 1507 j = 0; 1508 break; 1509 } 1510 } else { 1511 j = 1; 1512 while (j < timecnt && trans[i] >= ats[j]) 1513 ++j; 1514 j = types[j - 1]; 1515 } 1516 puttzcode((long) tadd(trans[i], -gmtoffs[j]), fp); 1517 } else puttzcode((long) trans[i], fp); 1518 puttzcode((long) corr[i], fp); 1519 } 1520 for (i = 0; i < typecnt; ++i) 1521 (void) putc(ttisstds[i], fp); 1522 for (i = 0; i < typecnt; ++i) 1523 (void) putc(ttisgmts[i], fp); 1524 if (ferror(fp) || fclose(fp)) { 1525 (void) fprintf(stderr, _("%s: Error writing %s\n"), 1526 progname, fullname); 1527 (void) exit(EXIT_FAILURE); 1528 } 1529 } 1530 1531 static void 1532 doabbr(abbr, abbrlen, format, letters, isdst) 1533 char * const abbr; 1534 const int abbrlen; 1535 const char * const format; 1536 const char * const letters; 1537 const int isdst; 1538 { 1539 if (strchr(format, '/') == NULL) { 1540 if (letters == NULL) 1541 (void)strncpy(abbr, format, abbrlen - 1); 1542 else 1543 (void)snprintf(abbr, abbrlen, format, letters); 1544 } else if (isdst) 1545 (void)strncpy(abbr, strchr(format, '/') + 1, abbrlen - 1); 1546 else { 1547 (void)strncpy(abbr, format, abbrlen - 1); 1548 *strchr(abbr, '/') = '\0'; 1549 } 1550 } 1551 1552 static void 1553 outzone(zpfirst, zonecount) 1554 const struct zone * const zpfirst; 1555 const int zonecount; 1556 { 1557 register const struct zone * zp; 1558 register struct rule * rp; 1559 register int i, j; 1560 register int usestart, useuntil; 1561 register time_t starttime, untiltime; 1562 register long gmtoff; 1563 register long stdoff; 1564 register int year; 1565 register long startoff; 1566 register int startttisstd; 1567 register int startttisgmt; 1568 register int type; 1569 char startbuf[BUFSIZ]; 1570 1571 INITIALIZE(untiltime); 1572 INITIALIZE(starttime); 1573 /* 1574 ** Now. . .finally. . .generate some useful data! 1575 */ 1576 timecnt = 0; 1577 typecnt = 0; 1578 charcnt = 0; 1579 /* 1580 ** A guess that may well be corrected later. 1581 */ 1582 stdoff = 0; 1583 /* 1584 ** Thanks to Earl Chew (earl@dnd.icp.nec.com.au) 1585 ** for noting the need to unconditionally initialize startttisstd. 1586 */ 1587 startttisstd = FALSE; 1588 startttisgmt = FALSE; 1589 for (i = 0; i < zonecount; ++i) { 1590 zp = &zpfirst[i]; 1591 usestart = i > 0 && (zp - 1)->z_untiltime > min_time; 1592 useuntil = i < (zonecount - 1); 1593 if (useuntil && zp->z_untiltime <= min_time) 1594 continue; 1595 gmtoff = zp->z_gmtoff; 1596 eat(zp->z_filename, zp->z_linenum); 1597 *startbuf = '\0'; 1598 startoff = zp->z_gmtoff; 1599 if (zp->z_nrules == 0) { 1600 stdoff = zp->z_stdoff; 1601 doabbr(startbuf, sizeof startbuf, zp->z_format, 1602 (char *) NULL, stdoff != 0); 1603 type = addtype(oadd(zp->z_gmtoff, stdoff), 1604 startbuf, stdoff != 0, startttisstd, 1605 startttisgmt); 1606 if (usestart) { 1607 addtt(starttime, type); 1608 usestart = FALSE; 1609 } 1610 else if (stdoff != 0) 1611 addtt(min_time, type); 1612 } else for (year = min_year; year <= max_year; ++year) { 1613 if (useuntil && year > zp->z_untilrule.r_hiyear) 1614 break; 1615 /* 1616 ** Mark which rules to do in the current year. 1617 ** For those to do, calculate rpytime(rp, year); 1618 */ 1619 for (j = 0; j < zp->z_nrules; ++j) { 1620 rp = &zp->z_rules[j]; 1621 eats(zp->z_filename, zp->z_linenum, 1622 rp->r_filename, rp->r_linenum); 1623 rp->r_todo = year >= rp->r_loyear && 1624 year <= rp->r_hiyear && 1625 yearistype(year, rp->r_yrtype); 1626 if (rp->r_todo) 1627 rp->r_temp = rpytime(rp, year); 1628 } 1629 for ( ; ; ) { 1630 register int k; 1631 register time_t jtime, ktime; 1632 register long offset; 1633 char buf[BUFSIZ]; 1634 1635 INITIALIZE(ktime); 1636 if (useuntil) { 1637 /* 1638 ** Turn untiltime into GMT 1639 ** assuming the current gmtoff and 1640 ** stdoff values. 1641 */ 1642 untiltime = zp->z_untiltime; 1643 if (!zp->z_untilrule.r_todisgmt) 1644 untiltime = tadd(untiltime, 1645 -gmtoff); 1646 if (!zp->z_untilrule.r_todisstd) 1647 untiltime = tadd(untiltime, 1648 -stdoff); 1649 } 1650 /* 1651 ** Find the rule (of those to do, if any) 1652 ** that takes effect earliest in the year. 1653 */ 1654 k = -1; 1655 for (j = 0; j < zp->z_nrules; ++j) { 1656 rp = &zp->z_rules[j]; 1657 if (!rp->r_todo) 1658 continue; 1659 eats(zp->z_filename, zp->z_linenum, 1660 rp->r_filename, rp->r_linenum); 1661 offset = rp->r_todisgmt ? 0 : gmtoff; 1662 if (!rp->r_todisstd) 1663 offset = oadd(offset, stdoff); 1664 jtime = rp->r_temp; 1665 if (jtime == min_time || 1666 jtime == max_time) 1667 continue; 1668 jtime = tadd(jtime, -offset); 1669 if (k < 0 || jtime < ktime) { 1670 k = j; 1671 ktime = jtime; 1672 } 1673 } 1674 if (k < 0) 1675 break; /* go on to next year */ 1676 rp = &zp->z_rules[k]; 1677 rp->r_todo = FALSE; 1678 if (useuntil && ktime >= untiltime) 1679 break; 1680 stdoff = rp->r_stdoff; 1681 if (usestart && ktime == starttime) 1682 usestart = FALSE; 1683 if (usestart) { 1684 if (ktime < starttime) { 1685 startoff = oadd(zp->z_gmtoff, 1686 stdoff); 1687 doabbr(startbuf,sizeof startbuf, 1688 zp->z_format, 1689 rp->r_abbrvar, 1690 rp->r_stdoff != 0); 1691 continue; 1692 } 1693 if (*startbuf == '\0' && 1694 startoff == oadd(zp->z_gmtoff, 1695 stdoff)) { 1696 doabbr(startbuf,sizeof startbuf, 1697 zp->z_format, 1698 rp->r_abbrvar, 1699 rp->r_stdoff != 0); 1700 } 1701 } 1702 eats(zp->z_filename, zp->z_linenum, 1703 rp->r_filename, rp->r_linenum); 1704 doabbr(buf, sizeof buf, zp->z_format, 1705 rp->r_abbrvar, rp->r_stdoff != 0); 1706 offset = oadd(zp->z_gmtoff, rp->r_stdoff); 1707 type = addtype(offset, buf, rp->r_stdoff != 0, 1708 rp->r_todisstd, rp->r_todisgmt); 1709 addtt(ktime, type); 1710 } 1711 } 1712 if (usestart) { 1713 if (*startbuf == '\0' && 1714 zp->z_format != NULL && 1715 strchr(zp->z_format, '%') == NULL && 1716 strchr(zp->z_format, '/') == NULL) 1717 (void)strncpy(startbuf, zp->z_format, 1718 sizeof(startbuf) - 1); 1719 eat(zp->z_filename, zp->z_linenum); 1720 if (*startbuf == '\0') 1721 error(_("can't determine time zone abbreviation to use just after until time")); 1722 else addtt(starttime, 1723 addtype(startoff, startbuf, 1724 startoff != zp->z_gmtoff, 1725 startttisstd, 1726 startttisgmt)); 1727 } 1728 /* 1729 ** Now we may get to set starttime for the next zone line. 1730 */ 1731 if (useuntil) { 1732 startttisstd = zp->z_untilrule.r_todisstd; 1733 startttisgmt = zp->z_untilrule.r_todisgmt; 1734 starttime = zp->z_untiltime; 1735 if (!startttisstd) 1736 starttime = tadd(starttime, -stdoff); 1737 if (!startttisgmt) 1738 starttime = tadd(starttime, -gmtoff); 1739 } 1740 } 1741 writezone(zpfirst->z_name); 1742 } 1743 1744 static void 1745 addtt(starttime, type) 1746 const time_t starttime; 1747 int type; 1748 { 1749 if (starttime <= min_time || 1750 (timecnt == 1 && attypes[0].at < min_time)) { 1751 gmtoffs[0] = gmtoffs[type]; 1752 isdsts[0] = isdsts[type]; 1753 ttisstds[0] = ttisstds[type]; 1754 ttisgmts[0] = ttisgmts[type]; 1755 if (abbrinds[type] != 0) 1756 (void) strcpy(chars, &chars[abbrinds[type]]); 1757 abbrinds[0] = 0; 1758 charcnt = strlen(chars) + 1; 1759 typecnt = 1; 1760 timecnt = 0; 1761 type = 0; 1762 } 1763 if (timecnt >= TZ_MAX_TIMES) { 1764 error(_("too many transitions?!")); 1765 (void) exit(EXIT_FAILURE); 1766 } 1767 attypes[timecnt].at = starttime; 1768 attypes[timecnt].type = type; 1769 ++timecnt; 1770 } 1771 1772 static int 1773 addtype(gmtoff, abbr, isdst, ttisstd, ttisgmt) 1774 const long gmtoff; 1775 const char * const abbr; 1776 const int isdst; 1777 const int ttisstd; 1778 const int ttisgmt; 1779 { 1780 register int i, j; 1781 1782 if (isdst != TRUE && isdst != FALSE) { 1783 error(_("internal error - addtype called with bad isdst")); 1784 (void) exit(EXIT_FAILURE); 1785 } 1786 if (ttisstd != TRUE && ttisstd != FALSE) { 1787 error(_("internal error - addtype called with bad ttisstd")); 1788 (void) exit(EXIT_FAILURE); 1789 } 1790 if (ttisgmt != TRUE && ttisgmt != FALSE) { 1791 error(_("internal error - addtype called with bad ttisgmt")); 1792 (void) exit(EXIT_FAILURE); 1793 } 1794 /* 1795 ** See if there's already an entry for this zone type. 1796 ** If so, just return its index. 1797 */ 1798 for (i = 0; i < typecnt; ++i) { 1799 if (gmtoff == gmtoffs[i] && isdst == isdsts[i] && 1800 strcmp(abbr, &chars[abbrinds[i]]) == 0 && 1801 ttisstd == ttisstds[i] && 1802 ttisgmt == ttisgmts[i]) 1803 return i; 1804 } 1805 /* 1806 ** There isn't one; add a new one, unless there are already too 1807 ** many. 1808 */ 1809 if (typecnt >= TZ_MAX_TYPES) { 1810 error(_("too many local time types")); 1811 (void) exit(EXIT_FAILURE); 1812 } 1813 gmtoffs[i] = gmtoff; 1814 isdsts[i] = isdst; 1815 ttisstds[i] = ttisstd; 1816 ttisgmts[i] = ttisgmt; 1817 1818 for (j = 0; j < charcnt; ++j) 1819 if (strcmp(&chars[j], abbr) == 0) 1820 break; 1821 if (j == charcnt) 1822 newabbr(abbr); 1823 abbrinds[i] = j; 1824 ++typecnt; 1825 return i; 1826 } 1827 1828 static void 1829 leapadd(t, positive, rolling, count) 1830 const time_t t; 1831 const int positive; 1832 const int rolling; 1833 int count; 1834 { 1835 register int i, j; 1836 1837 if (leapcnt + (positive ? count : 1) > TZ_MAX_LEAPS) { 1838 error(_("too many leap seconds")); 1839 (void) exit(EXIT_FAILURE); 1840 } 1841 for (i = 0; i < leapcnt; ++i) 1842 if (t <= trans[i]) { 1843 if (t == trans[i]) { 1844 error(_("repeated leap second moment")); 1845 (void) exit(EXIT_FAILURE); 1846 } 1847 break; 1848 } 1849 do { 1850 for (j = leapcnt; j > i; --j) { 1851 trans[j] = trans[j - 1]; 1852 corr[j] = corr[j - 1]; 1853 roll[j] = roll[j - 1]; 1854 } 1855 trans[i] = t; 1856 corr[i] = positive ? 1L : eitol(-count); 1857 roll[i] = rolling; 1858 ++leapcnt; 1859 } while (positive && --count != 0); 1860 } 1861 1862 static void 1863 adjleap P((void)) 1864 { 1865 register int i; 1866 register long last = 0; 1867 1868 /* 1869 ** propagate leap seconds forward 1870 */ 1871 for (i = 0; i < leapcnt; ++i) { 1872 trans[i] = tadd(trans[i], last); 1873 last = corr[i] += last; 1874 } 1875 } 1876 1877 static int 1878 yearistype(year, type) 1879 const int year; 1880 const char * const type; 1881 { 1882 static char * buf; 1883 int result; 1884 1885 if (type == NULL || *type == '\0') 1886 return TRUE; 1887 buf = erealloc(buf, (int) (132 + strlen(yitcommand) + strlen(type))); 1888 (void)sprintf(buf, "%s %d %s", yitcommand, year, type); /* XXX: sprintf is safe */ 1889 result = system(buf); 1890 if (result == 0) 1891 return TRUE; 1892 if (result == (1 << 8)) 1893 return FALSE; 1894 error(_("Wild result from command execution")); 1895 (void) fprintf(stderr, _("%s: command was '%s', result was %d\n"), 1896 progname, buf, result); 1897 for ( ; ; ) 1898 (void) exit(EXIT_FAILURE); 1899 } 1900 1901 static int 1902 lowerit(a) 1903 int a; 1904 { 1905 a = (unsigned char) a; 1906 return (isascii(a) && isupper(a)) ? tolower(a) : a; 1907 } 1908 1909 static int 1910 ciequal(ap, bp) /* case-insensitive equality */ 1911 register const char * ap; 1912 register const char * bp; 1913 { 1914 while (lowerit(*ap) == lowerit(*bp++)) 1915 if (*ap++ == '\0') 1916 return TRUE; 1917 return FALSE; 1918 } 1919 1920 static int 1921 itsabbr(abbr, word) 1922 register const char * abbr; 1923 register const char * word; 1924 { 1925 if (lowerit(*abbr) != lowerit(*word)) 1926 return FALSE; 1927 ++word; 1928 while (*++abbr != '\0') 1929 do { 1930 if (*word == '\0') 1931 return FALSE; 1932 } while (lowerit(*word++) != lowerit(*abbr)); 1933 return TRUE; 1934 } 1935 1936 static const struct lookup * 1937 byword(word, table) 1938 register const char * const word; 1939 register const struct lookup * const table; 1940 { 1941 register const struct lookup * foundlp; 1942 register const struct lookup * lp; 1943 1944 if (word == NULL || table == NULL) 1945 return NULL; 1946 /* 1947 ** Look for exact match. 1948 */ 1949 for (lp = table; lp->l_word != NULL; ++lp) 1950 if (ciequal(word, lp->l_word)) 1951 return lp; 1952 /* 1953 ** Look for inexact match. 1954 */ 1955 foundlp = NULL; 1956 for (lp = table; lp->l_word != NULL; ++lp) 1957 if (itsabbr(word, lp->l_word)) 1958 if (foundlp == NULL) 1959 foundlp = lp; 1960 else return NULL; /* multiple inexact matches */ 1961 return foundlp; 1962 } 1963 1964 static char ** 1965 getfields(cp) 1966 register char * cp; 1967 { 1968 register char * dp; 1969 register char ** array; 1970 register int nsubs; 1971 1972 if (cp == NULL) 1973 return NULL; 1974 array = (char **) (void *) 1975 emalloc((int) ((strlen(cp) + 1) * sizeof *array)); 1976 nsubs = 0; 1977 for ( ; ; ) { 1978 while (isascii(*cp) && isspace((unsigned char) *cp)) 1979 ++cp; 1980 if (*cp == '\0' || *cp == '#') 1981 break; 1982 array[nsubs++] = dp = cp; 1983 do { 1984 if ((*dp = *cp++) != '"') 1985 ++dp; 1986 else while ((*dp = *cp++) != '"') 1987 if (*dp != '\0') 1988 ++dp; 1989 else error(_("Odd number of quotation marks")); 1990 } while (*cp != '\0' && *cp != '#' && 1991 (!isascii(*cp) || !isspace((unsigned char) *cp))); 1992 if (isascii(*cp) && isspace((unsigned char) *cp)) 1993 ++cp; 1994 *dp = '\0'; 1995 } 1996 array[nsubs] = NULL; 1997 return array; 1998 } 1999 2000 static long 2001 oadd(t1, t2) 2002 const long t1; 2003 const long t2; 2004 { 2005 register long t; 2006 2007 t = t1 + t2; 2008 if ((t2 > 0 && t <= t1) || (t2 < 0 && t >= t1)) { 2009 error(_("time overflow")); 2010 (void) exit(EXIT_FAILURE); 2011 } 2012 return t; 2013 } 2014 2015 static time_t 2016 tadd(t1, t2) 2017 const time_t t1; 2018 const long t2; 2019 { 2020 register time_t t; 2021 2022 if (t1 == max_time && t2 > 0) 2023 return max_time; 2024 if (t1 == min_time && t2 < 0) 2025 return min_time; 2026 t = t1 + t2; 2027 if ((t2 > 0 && t <= t1) || (t2 < 0 && t >= t1)) { 2028 error(_("time overflow")); 2029 (void) exit(EXIT_FAILURE); 2030 } 2031 return t; 2032 } 2033 2034 /* 2035 ** Given a rule, and a year, compute the date - in seconds since January 1, 2036 ** 1970, 00:00 LOCAL time - in that year that the rule refers to. 2037 */ 2038 2039 static time_t 2040 rpytime(rp, wantedy) 2041 register const struct rule * const rp; 2042 register const int wantedy; 2043 { 2044 register int y, m, i; 2045 register long dayoff; /* with a nod to Margaret O. */ 2046 register time_t t; 2047 2048 if (wantedy == INT_MIN) 2049 return min_time; 2050 if (wantedy == INT_MAX) 2051 return max_time; 2052 dayoff = 0; 2053 m = TM_JANUARY; 2054 y = EPOCH_YEAR; 2055 while (wantedy != y) { 2056 if (wantedy > y) { 2057 i = len_years[isleap(y)]; 2058 ++y; 2059 } else { 2060 --y; 2061 i = -len_years[isleap(y)]; 2062 } 2063 dayoff = oadd(dayoff, eitol(i)); 2064 } 2065 while (m != rp->r_month) { 2066 i = len_months[isleap(y)][m]; 2067 dayoff = oadd(dayoff, eitol(i)); 2068 ++m; 2069 } 2070 i = rp->r_dayofmonth; 2071 if (m == TM_FEBRUARY && i == 29 && !isleap(y)) { 2072 if (rp->r_dycode == DC_DOWLEQ) 2073 --i; 2074 else { 2075 error(_("use of 2/29 in non leap-year")); 2076 (void) exit(EXIT_FAILURE); 2077 } 2078 } 2079 --i; 2080 dayoff = oadd(dayoff, eitol(i)); 2081 if (rp->r_dycode == DC_DOWGEQ || rp->r_dycode == DC_DOWLEQ) { 2082 register long wday; 2083 2084 #define LDAYSPERWEEK ((long) DAYSPERWEEK) 2085 wday = eitol(EPOCH_WDAY); 2086 /* 2087 ** Don't trust mod of negative numbers. 2088 */ 2089 if (dayoff >= 0) 2090 wday = (wday + dayoff) % LDAYSPERWEEK; 2091 else { 2092 wday -= ((-dayoff) % LDAYSPERWEEK); 2093 if (wday < 0) 2094 wday += LDAYSPERWEEK; 2095 } 2096 while (wday != eitol(rp->r_wday)) 2097 if (rp->r_dycode == DC_DOWGEQ) { 2098 dayoff = oadd(dayoff, (long) 1); 2099 if (++wday >= LDAYSPERWEEK) 2100 wday = 0; 2101 ++i; 2102 } else { 2103 dayoff = oadd(dayoff, (long) -1); 2104 if (--wday < 0) 2105 wday = LDAYSPERWEEK - 1; 2106 --i; 2107 } 2108 if (i < 0 || i >= len_months[isleap(y)][m]) { 2109 error(_("no day in month matches rule")); 2110 (void) exit(EXIT_FAILURE); 2111 } 2112 } 2113 if (dayoff < 0 && !TYPE_SIGNED(time_t)) 2114 return min_time; 2115 t = (time_t) dayoff * SECSPERDAY; 2116 /* 2117 ** Cheap overflow check. 2118 */ 2119 if (t / SECSPERDAY != dayoff) 2120 return (dayoff > 0) ? max_time : min_time; 2121 return tadd(t, rp->r_tod); 2122 } 2123 2124 static void 2125 newabbr(string) 2126 const char * const string; 2127 { 2128 register int i; 2129 2130 i = strlen(string) + 1; 2131 if (charcnt + i > TZ_MAX_CHARS) { 2132 error(_("too many, or too long, time zone abbreviations")); 2133 (void) exit(EXIT_FAILURE); 2134 } 2135 (void)strncpy(&chars[charcnt], string, sizeof(chars) - charcnt - 1); 2136 charcnt += eitol(i); 2137 } 2138 2139 static int 2140 mkdirs(argname) 2141 char * const argname; 2142 { 2143 register char * name; 2144 register char * cp; 2145 2146 if (argname == NULL || *argname == '\0') 2147 return 0; 2148 cp = name = ecpyalloc(argname); 2149 while ((cp = strchr(cp + 1, '/')) != 0) { 2150 *cp = '\0'; 2151 #ifndef unix 2152 /* 2153 ** DOS drive specifier? 2154 */ 2155 if (isalpha((unsigned char) name[0]) && 2156 name[1] == ':' && name[2] == '\0') { 2157 *cp = '/'; 2158 continue; 2159 } 2160 #endif /* !defined unix */ 2161 if (!itsdir(name)) { 2162 /* 2163 ** It doesn't seem to exist, so we try to create it. 2164 ** Creation may fail because of the directory being 2165 ** created by some other multiprocessor, so we get 2166 ** to do extra checking. 2167 */ 2168 if (mkdir(name, S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) != 0) { 2169 const char *e = strerror(errno); 2170 2171 if (errno != EEXIST || !itsdir(name)) { 2172 (void) fprintf(stderr, 2173 _("%s: Can't create directory %s: %s\n"), 2174 progname, name, e); 2175 ifree(name); 2176 return -1; 2177 } 2178 } 2179 } 2180 *cp = '/'; 2181 } 2182 ifree(name); 2183 return 0; 2184 } 2185 2186 static long 2187 eitol(i) 2188 const int i; 2189 { 2190 long l; 2191 2192 l = i; 2193 if ((i < 0 && l >= 0) || (i == 0 && l != 0) || (i > 0 && l <= 0)) { 2194 (void) fprintf(stderr, 2195 _("%s: %d did not sign extend correctly\n"), 2196 progname, i); 2197 (void) exit(EXIT_FAILURE); 2198 } 2199 return l; 2200 } 2201 2202 /* 2203 ** UNIX was a registered trademark of UNIX System Laboratories in 1993. 2204 */ 2205