localtime.c (8870) | localtime.c (9936) |
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1#ifndef lint 2#ifndef NOID | 1#ifndef lint 2#ifndef NOID |
3static char elsieid[] = "@(#)localtime.c 7.19"; | 3static char elsieid[] = "@(#)localtime.c 7.44"; |
4#endif /* !defined NOID */ 5#endif /* !defined lint */ 6 7/* 8** Leap second handling from Bradley White (bww@k.gp.cs.cmu.edu). 9** POSIX-style TZ environment variable handling from Guy Harris 10** (guy@auspex.com). 11*/ 12 13/*LINTLIBRARY*/ 14 15#include "private.h" 16#include "tzfile.h" 17#include "fcntl.h" 18 | 4#endif /* !defined NOID */ 5#endif /* !defined lint */ 6 7/* 8** Leap second handling from Bradley White (bww@k.gp.cs.cmu.edu). 9** POSIX-style TZ environment variable handling from Guy Harris 10** (guy@auspex.com). 11*/ 12 13/*LINTLIBRARY*/ 14 15#include "private.h" 16#include "tzfile.h" 17#include "fcntl.h" 18 |
19#define ACCESS_MODE O_RDONLY | 19/* 20** SunOS 4.1.1 headers lack O_BINARY. 21*/ |
20 21#ifdef O_BINARY 22#define OPEN_MODE (O_RDONLY | O_BINARY) 23#endif /* defined O_BINARY */ 24#ifndef O_BINARY 25#define OPEN_MODE O_RDONLY 26#endif /* !defined O_BINARY */ 27 28#ifndef WILDABBR 29/* 30** Someone might make incorrect use of a time zone abbreviation: 31** 1. They might reference tzname[0] before calling tzset (explicitly | 22 23#ifdef O_BINARY 24#define OPEN_MODE (O_RDONLY | O_BINARY) 25#endif /* defined O_BINARY */ 26#ifndef O_BINARY 27#define OPEN_MODE O_RDONLY 28#endif /* !defined O_BINARY */ 29 30#ifndef WILDABBR 31/* 32** Someone might make incorrect use of a time zone abbreviation: 33** 1. They might reference tzname[0] before calling tzset (explicitly |
32** or implicitly). | 34** or implicitly). |
33** 2. They might reference tzname[1] before calling tzset (explicitly | 35** 2. They might reference tzname[1] before calling tzset (explicitly |
34** or implicitly). | 36** or implicitly). |
35** 3. They might reference tzname[1] after setting to a time zone 36** in which Daylight Saving Time is never observed. 37** 4. They might reference tzname[0] after setting to a time zone 38** in which Standard Time is never observed. 39** 5. They might reference tm.TM_ZONE after calling offtime. 40** What's best to do in the above cases is open to debate; 41** for now, we just set things up so that in any of the five cases 42** WILDABBR is used. Another possibility: initialize tzname[0] to the 43** string "tzname[0] used before set", and similarly for the other cases. 44** And another: initialize tzname[0] to "ERA", with an explanation in the 45** manual page of what this "time zone abbreviation" means (doing this so 46** that tzname[0] has the "normal" length of three characters). 47*/ 48#define WILDABBR " " 49#endif /* !defined WILDABBR */ 50 | 37** 3. They might reference tzname[1] after setting to a time zone 38** in which Daylight Saving Time is never observed. 39** 4. They might reference tzname[0] after setting to a time zone 40** in which Standard Time is never observed. 41** 5. They might reference tm.TM_ZONE after calling offtime. 42** What's best to do in the above cases is open to debate; 43** for now, we just set things up so that in any of the five cases 44** WILDABBR is used. Another possibility: initialize tzname[0] to the 45** string "tzname[0] used before set", and similarly for the other cases. 46** And another: initialize tzname[0] to "ERA", with an explanation in the 47** manual page of what this "time zone abbreviation" means (doing this so 48** that tzname[0] has the "normal" length of three characters). 49*/ 50#define WILDABBR " " 51#endif /* !defined WILDABBR */ 52 |
51static const char GMT[] = "GMT"; | 53static char wildabbr[] = "WILDABBR"; |
52 | 54 |
55static const char gmt[] = "GMT"; 56 |
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53struct ttinfo { /* time type information */ 54 long tt_gmtoff; /* GMT offset in seconds */ 55 int tt_isdst; /* used to set tm_isdst */ 56 int tt_abbrind; /* abbreviation list index */ 57 int tt_ttisstd; /* TRUE if transition is std time */ | 57struct ttinfo { /* time type information */ 58 long tt_gmtoff; /* GMT offset in seconds */ 59 int tt_isdst; /* used to set tm_isdst */ 60 int tt_abbrind; /* abbreviation list index */ 61 int tt_ttisstd; /* TRUE if transition is std time */ |
62 int tt_ttisgmt; /* TRUE if transition is GMT */ |
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58}; 59 60struct lsinfo { /* leap second information */ 61 time_t ls_trans; /* transition time */ 62 long ls_corr; /* correction to apply */ 63}; 64 65#define BIGGEST(a, b) (((a) > (b)) ? (a) : (b)) --- 8 unchanged lines hidden (view full) --- 74struct state { 75 int leapcnt; 76 int timecnt; 77 int typecnt; 78 int charcnt; 79 time_t ats[TZ_MAX_TIMES]; 80 unsigned char types[TZ_MAX_TIMES]; 81 struct ttinfo ttis[TZ_MAX_TYPES]; | 63}; 64 65struct lsinfo { /* leap second information */ 66 time_t ls_trans; /* transition time */ 67 long ls_corr; /* correction to apply */ 68}; 69 70#define BIGGEST(a, b) (((a) > (b)) ? (a) : (b)) --- 8 unchanged lines hidden (view full) --- 79struct state { 80 int leapcnt; 81 int timecnt; 82 int typecnt; 83 int charcnt; 84 time_t ats[TZ_MAX_TIMES]; 85 unsigned char types[TZ_MAX_TIMES]; 86 struct ttinfo ttis[TZ_MAX_TYPES]; |
82 char chars[BIGGEST(BIGGEST(TZ_MAX_CHARS + 1, sizeof GMT), | 87 char chars[BIGGEST(BIGGEST(TZ_MAX_CHARS + 1, sizeof gmt), |
83 (2 * (MY_TZNAME_MAX + 1)))]; 84 struct lsinfo lsis[TZ_MAX_LEAPS]; 85}; 86 87struct rule { 88 int r_type; /* type of rule--see below */ 89 int r_day; /* day number of rule */ 90 int r_week; /* week number of rule */ --- 20 unchanged lines hidden (view full) --- 111static void gmtsub P((const time_t * timep, long offset, 112 struct tm * tmp)); 113static void localsub P((const time_t * timep, long offset, 114 struct tm * tmp)); 115static int increment_overflow P((int * number, int delta)); 116static int normalize_overflow P((int * tensptr, int * unitsptr, 117 int base)); 118static void settzname P((void)); | 88 (2 * (MY_TZNAME_MAX + 1)))]; 89 struct lsinfo lsis[TZ_MAX_LEAPS]; 90}; 91 92struct rule { 93 int r_type; /* type of rule--see below */ 94 int r_day; /* day number of rule */ 95 int r_week; /* week number of rule */ --- 20 unchanged lines hidden (view full) --- 116static void gmtsub P((const time_t * timep, long offset, 117 struct tm * tmp)); 118static void localsub P((const time_t * timep, long offset, 119 struct tm * tmp)); 120static int increment_overflow P((int * number, int delta)); 121static int normalize_overflow P((int * tensptr, int * unitsptr, 122 int base)); 123static void settzname P((void)); |
119static time_t time1 P((struct tm * tmp, void (* funcp)(), | 124static time_t time1 P((struct tm * tmp, 125 void(*funcp) P((const time_t *, 126 long, struct tm *)), |
120 long offset)); | 127 long offset)); |
121static time_t time2 P((struct tm *tmp, void (* funcp)(), | 128static time_t time2 P((struct tm *tmp, 129 void(*funcp) P((const time_t *, 130 long, struct tm*)), |
122 long offset, int * okayp)); 123static void timesub P((const time_t * timep, long offset, 124 const struct state * sp, struct tm * tmp)); 125static int tmcomp P((const struct tm * atmp, 126 const struct tm * btmp)); 127static time_t transtime P((time_t janfirst, int year, 128 const struct rule * rulep, long offset)); 129static int tzload P((const char * name, struct state * sp)); --- 7 unchanged lines hidden (view full) --- 137 138#ifndef ALL_STATE 139static struct state lclmem; 140static struct state gmtmem; 141#define lclptr (&lclmem) 142#define gmtptr (&gmtmem) 143#endif /* State Farm */ 144 | 131 long offset, int * okayp)); 132static void timesub P((const time_t * timep, long offset, 133 const struct state * sp, struct tm * tmp)); 134static int tmcomp P((const struct tm * atmp, 135 const struct tm * btmp)); 136static time_t transtime P((time_t janfirst, int year, 137 const struct rule * rulep, long offset)); 138static int tzload P((const char * name, struct state * sp)); --- 7 unchanged lines hidden (view full) --- 146 147#ifndef ALL_STATE 148static struct state lclmem; 149static struct state gmtmem; 150#define lclptr (&lclmem) 151#define gmtptr (&gmtmem) 152#endif /* State Farm */ 153 |
154#ifndef TZ_STRLEN_MAX 155#define TZ_STRLEN_MAX 255 156#endif /* !defined TZ_STRLEN_MAX */ 157 158static char lcl_TZname[TZ_STRLEN_MAX + 1]; |
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145static int lcl_is_set; 146static int gmt_is_set; 147 148char * tzname[2] = { | 159static int lcl_is_set; 160static int gmt_is_set; 161 162char * tzname[2] = { |
149 WILDABBR, 150 WILDABBR | 163 wildabbr, 164 wildabbr |
151}; 152 | 165}; 166 |
167/* 168** Section 4.12.3 of X3.159-1989 requires that 169** Except for the strftime function, these functions [asctime, 170** ctime, gmtime, localtime] return values in one of two static 171** objects: a broken-down time structure and an array of char. 172** Thanks to Paul Eggert (eggert@twinsun.com) for noting this. 173*/ 174 175static struct tm tm; 176 |
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153#ifdef USG_COMPAT 154time_t timezone = 0; 155int daylight = 0; 156#endif /* defined USG_COMPAT */ 157 158#ifdef ALTZONE 159time_t altzone = 0; 160#endif /* defined ALTZONE */ 161 162static long 163detzcode(codep) 164const char * const codep; 165{ 166 register long result; 167 register int i; 168 | 177#ifdef USG_COMPAT 178time_t timezone = 0; 179int daylight = 0; 180#endif /* defined USG_COMPAT */ 181 182#ifdef ALTZONE 183time_t altzone = 0; 184#endif /* defined ALTZONE */ 185 186static long 187detzcode(codep) 188const char * const codep; 189{ 190 register long result; 191 register int i; 192 |
169 result = 0; | 193 result = (codep[0] & 0x80) ? ~0L : 0L; |
170 for (i = 0; i < 4; ++i) 171 result = (result << 8) | (codep[i] & 0xff); 172 return result; 173} 174 175static void | 194 for (i = 0; i < 4; ++i) 195 result = (result << 8) | (codep[i] & 0xff); 196 return result; 197} 198 199static void |
176settzname() | 200settzname P((void)) |
177{ | 201{ |
178 register const struct state * const sp = lclptr; | 202 register struct state * const sp = lclptr; |
179 register int i; 180 | 203 register int i; 204 |
181 tzname[0] = WILDABBR; 182 tzname[1] = WILDABBR; | 205 tzname[0] = wildabbr; 206 tzname[1] = wildabbr; |
183#ifdef USG_COMPAT 184 daylight = 0; 185 timezone = 0; 186#endif /* defined USG_COMPAT */ 187#ifdef ALTZONE 188 altzone = 0; 189#endif /* defined ALTZONE */ 190#ifdef ALL_STATE 191 if (sp == NULL) { | 207#ifdef USG_COMPAT 208 daylight = 0; 209 timezone = 0; 210#endif /* defined USG_COMPAT */ 211#ifdef ALTZONE 212 altzone = 0; 213#endif /* defined ALTZONE */ 214#ifdef ALL_STATE 215 if (sp == NULL) { |
192 tzname[0] = tzname[1] = GMT; | 216 tzname[0] = tzname[1] = gmt; |
193 return; 194 } 195#endif /* defined ALL_STATE */ 196 for (i = 0; i < sp->typecnt; ++i) { 197 register const struct ttinfo * const ttisp = &sp->ttis[i]; 198 199 tzname[ttisp->tt_isdst] = | 217 return; 218 } 219#endif /* defined ALL_STATE */ 220 for (i = 0; i < sp->typecnt; ++i) { 221 register const struct ttinfo * const ttisp = &sp->ttis[i]; 222 223 tzname[ttisp->tt_isdst] = |
200 (char *) &sp->chars[ttisp->tt_abbrind]; | 224 &sp->chars[ttisp->tt_abbrind]; |
201#ifdef USG_COMPAT 202 if (ttisp->tt_isdst) 203 daylight = 1; 204 if (i == 0 || !ttisp->tt_isdst) 205 timezone = -(ttisp->tt_gmtoff); 206#endif /* defined USG_COMPAT */ 207#ifdef ALTZONE 208 if (i == 0 || ttisp->tt_isdst) --- 4 unchanged lines hidden (view full) --- 213 ** And to get the latest zone names into tzname. . . 214 */ 215 for (i = 0; i < sp->timecnt; ++i) { 216 register const struct ttinfo * const ttisp = 217 &sp->ttis[ 218 sp->types[i]]; 219 220 tzname[ttisp->tt_isdst] = | 225#ifdef USG_COMPAT 226 if (ttisp->tt_isdst) 227 daylight = 1; 228 if (i == 0 || !ttisp->tt_isdst) 229 timezone = -(ttisp->tt_gmtoff); 230#endif /* defined USG_COMPAT */ 231#ifdef ALTZONE 232 if (i == 0 || ttisp->tt_isdst) --- 4 unchanged lines hidden (view full) --- 237 ** And to get the latest zone names into tzname. . . 238 */ 239 for (i = 0; i < sp->timecnt; ++i) { 240 register const struct ttinfo * const ttisp = 241 &sp->ttis[ 242 sp->types[i]]; 243 244 tzname[ttisp->tt_isdst] = |
221 (char *) &sp->chars[ttisp->tt_abbrind]; | 245 &sp->chars[ttisp->tt_abbrind]; |
222 } 223} 224 225static int 226tzload(name, sp) 227register const char * name; 228register struct state * const sp; 229{ 230 register const char * p; 231 register int i; 232 register int fid; 233 234 if (name == NULL && (name = TZDEFAULT) == NULL) 235 return -1; 236 { | 246 } 247} 248 249static int 250tzload(name, sp) 251register const char * name; 252register struct state * const sp; 253{ 254 register const char * p; 255 register int i; 256 register int fid; 257 258 if (name == NULL && (name = TZDEFAULT) == NULL) 259 return -1; 260 { |
237 register int doaccess; | 261 register int doaccess; 262 /* 263 ** Section 4.9.1 of the C standard says that 264 ** "FILENAME_MAX expands to an integral constant expression 265 ** that is the sie needed for an array of char large enough 266 ** to hold the longest file name string that the implementation 267 ** guarantees can be opened." 268 */ |
238 char fullname[FILENAME_MAX + 1]; 239 240 if (name[0] == ':') 241 ++name; 242 doaccess = name[0] == '/'; 243 if (!doaccess) { 244 if ((p = TZDIR) == NULL) 245 return -1; --- 4 unchanged lines hidden (view full) --- 250 (void) strcat(fullname, name); 251 /* 252 ** Set doaccess if '.' (as in "../") shows up in name. 253 */ 254 if (strchr(name, '.') != NULL) 255 doaccess = TRUE; 256 name = fullname; 257 } | 269 char fullname[FILENAME_MAX + 1]; 270 271 if (name[0] == ':') 272 ++name; 273 doaccess = name[0] == '/'; 274 if (!doaccess) { 275 if ((p = TZDIR) == NULL) 276 return -1; --- 4 unchanged lines hidden (view full) --- 281 (void) strcat(fullname, name); 282 /* 283 ** Set doaccess if '.' (as in "../") shows up in name. 284 */ 285 if (strchr(name, '.') != NULL) 286 doaccess = TRUE; 287 name = fullname; 288 } |
258 if (doaccess && access(name, ACCESS_MODE) != 0) | 289 if (doaccess && access(name, R_OK) != 0) |
259 return -1; 260 if ((fid = open(name, OPEN_MODE)) == -1) 261 return -1; 262 } 263 { | 290 return -1; 291 if ((fid = open(name, OPEN_MODE)) == -1) 292 return -1; 293 } 294 { |
264 register const struct tzhead * tzhp; 265 char buf[sizeof *sp + sizeof *tzhp]; 266 int ttisstdcnt; | 295 struct tzhead * tzhp; 296 char buf[sizeof *sp + sizeof *tzhp]; 297 int ttisstdcnt; 298 int ttisgmtcnt; |
267 268 i = read(fid, buf, sizeof buf); | 299 300 i = read(fid, buf, sizeof buf); |
269 if (close(fid) != 0 || i < sizeof *tzhp) | 301 if (close(fid) != 0) |
270 return -1; | 302 return -1; |
271 tzhp = (struct tzhead *) buf; 272 ttisstdcnt = (int) detzcode(tzhp->tzh_ttisstdcnt); 273 sp->leapcnt = (int) detzcode(tzhp->tzh_leapcnt); 274 sp->timecnt = (int) detzcode(tzhp->tzh_timecnt); 275 sp->typecnt = (int) detzcode(tzhp->tzh_typecnt); 276 sp->charcnt = (int) detzcode(tzhp->tzh_charcnt); | 303 p = buf; 304 p += sizeof tzhp->tzh_reserved; 305 ttisstdcnt = (int) detzcode(p); 306 p += 4; 307 ttisgmtcnt = (int) detzcode(p); 308 p += 4; 309 sp->leapcnt = (int) detzcode(p); 310 p += 4; 311 sp->timecnt = (int) detzcode(p); 312 p += 4; 313 sp->typecnt = (int) detzcode(p); 314 p += 4; 315 sp->charcnt = (int) detzcode(p); 316 p += 4; |
277 if (sp->leapcnt < 0 || sp->leapcnt > TZ_MAX_LEAPS || 278 sp->typecnt <= 0 || sp->typecnt > TZ_MAX_TYPES || 279 sp->timecnt < 0 || sp->timecnt > TZ_MAX_TIMES || 280 sp->charcnt < 0 || sp->charcnt > TZ_MAX_CHARS || | 317 if (sp->leapcnt < 0 || sp->leapcnt > TZ_MAX_LEAPS || 318 sp->typecnt <= 0 || sp->typecnt > TZ_MAX_TYPES || 319 sp->timecnt < 0 || sp->timecnt > TZ_MAX_TIMES || 320 sp->charcnt < 0 || sp->charcnt > TZ_MAX_CHARS || |
281 (ttisstdcnt != sp->typecnt && ttisstdcnt != 0)) | 321 (ttisstdcnt != sp->typecnt && ttisstdcnt != 0) || 322 (ttisgmtcnt != sp->typecnt && ttisgmtcnt != 0)) |
282 return -1; | 323 return -1; |
283 if (i < sizeof *tzhp + 284 sp->timecnt * (4 + sizeof (char)) + 285 sp->typecnt * (4 + 2 * sizeof (char)) + 286 sp->charcnt * sizeof (char) + 287 sp->leapcnt * 2 * 4 + 288 ttisstdcnt * sizeof (char)) | 324 if (i - (p - buf) < sp->timecnt * 4 + /* ats */ 325 sp->timecnt + /* types */ 326 sp->typecnt * (4 + 2) + /* ttinfos */ 327 sp->charcnt + /* chars */ 328 sp->leapcnt * (4 + 4) + /* lsinfos */ 329 ttisstdcnt + /* ttisstds */ 330 ttisgmtcnt) /* ttisgmts */ |
289 return -1; | 331 return -1; |
290 p = buf + sizeof *tzhp; | |
291 for (i = 0; i < sp->timecnt; ++i) { 292 sp->ats[i] = detzcode(p); 293 p += 4; 294 } 295 for (i = 0; i < sp->timecnt; ++i) { 296 sp->types[i] = (unsigned char) *p++; 297 if (sp->types[i] >= sp->typecnt) 298 return -1; --- 32 unchanged lines hidden (view full) --- 331 ttisp->tt_ttisstd = FALSE; 332 else { 333 ttisp->tt_ttisstd = *p++; 334 if (ttisp->tt_ttisstd != TRUE && 335 ttisp->tt_ttisstd != FALSE) 336 return -1; 337 } 338 } | 332 for (i = 0; i < sp->timecnt; ++i) { 333 sp->ats[i] = detzcode(p); 334 p += 4; 335 } 336 for (i = 0; i < sp->timecnt; ++i) { 337 sp->types[i] = (unsigned char) *p++; 338 if (sp->types[i] >= sp->typecnt) 339 return -1; --- 32 unchanged lines hidden (view full) --- 372 ttisp->tt_ttisstd = FALSE; 373 else { 374 ttisp->tt_ttisstd = *p++; 375 if (ttisp->tt_ttisstd != TRUE && 376 ttisp->tt_ttisstd != FALSE) 377 return -1; 378 } 379 } |
380 for (i = 0; i < sp->typecnt; ++i) { 381 register struct ttinfo * ttisp; 382 383 ttisp = &sp->ttis[i]; 384 if (ttisgmtcnt == 0) 385 ttisp->tt_ttisgmt = FALSE; 386 else { 387 ttisp->tt_ttisgmt = *p++; 388 if (ttisp->tt_ttisgmt != TRUE && 389 ttisp->tt_ttisgmt != FALSE) 390 return -1; 391 } 392 } |
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339 } 340 return 0; 341} 342 343static const int mon_lengths[2][MONSPERYEAR] = { 344 { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, 345 { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } 346}; --- 62 unchanged lines hidden (view full) --- 409 410static const char * 411getsecs(strp, secsp) 412register const char * strp; 413long * const secsp; 414{ 415 int num; 416 | 393 } 394 return 0; 395} 396 397static const int mon_lengths[2][MONSPERYEAR] = { 398 { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, 399 { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } 400}; --- 62 unchanged lines hidden (view full) --- 463 464static const char * 465getsecs(strp, secsp) 466register const char * strp; 467long * const secsp; 468{ 469 int num; 470 |
417 strp = getnum(strp, &num, 0, HOURSPERDAY); | 471 /* 472 ** `HOURSPERDAY * DAYSPERWEEK - 1' allows quasi-Posix rules like 473 ** "M10.4.6/26", which does not conform to Posix, 474 ** but which specifies the equivalent of 475 ** ``02:00 on the first Sunday on or after 23 Oct''. 476 */ 477 strp = getnum(strp, &num, 0, HOURSPERDAY * DAYSPERWEEK - 1); |
418 if (strp == NULL) 419 return NULL; | 478 if (strp == NULL) 479 return NULL; |
420 *secsp = num * SECSPERHOUR; | 480 *secsp = num * (long) SECSPERHOUR; |
421 if (*strp == ':') { 422 ++strp; 423 strp = getnum(strp, &num, 0, MINSPERHOUR - 1); 424 if (strp == NULL) 425 return NULL; 426 *secsp += num * SECSPERMIN; 427 if (*strp == ':') { 428 ++strp; | 481 if (*strp == ':') { 482 ++strp; 483 strp = getnum(strp, &num, 0, MINSPERHOUR - 1); 484 if (strp == NULL) 485 return NULL; 486 *secsp += num * SECSPERMIN; 487 if (*strp == ':') { 488 ++strp; |
429 strp = getnum(strp, &num, 0, SECSPERMIN - 1); | 489 /* `SECSPERMIN' allows for leap seconds. */ 490 strp = getnum(strp, &num, 0, SECSPERMIN); |
430 if (strp == NULL) 431 return NULL; 432 *secsp += num; 433 } 434 } 435 return strp; 436} 437 --- 93 unchanged lines hidden (view full) --- 531register const struct rule * const rulep; 532const long offset; 533{ 534 register int leapyear; 535 register time_t value; 536 register int i; 537 int d, m1, yy0, yy1, yy2, dow; 538 | 491 if (strp == NULL) 492 return NULL; 493 *secsp += num; 494 } 495 } 496 return strp; 497} 498 --- 93 unchanged lines hidden (view full) --- 592register const struct rule * const rulep; 593const long offset; 594{ 595 register int leapyear; 596 register time_t value; 597 register int i; 598 int d, m1, yy0, yy1, yy2, dow; 599 |
600 INITIALIZE(value); |
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539 leapyear = isleap(year); 540 switch (rulep->r_type) { 541 542 case JULIAN_DAY: 543 /* 544 ** Jn - Julian day, 1 == January 1, 60 == March 1 even in leap 545 ** years. 546 ** In non-leap years, or if the day number is 59 or less, just --- 74 unchanged lines hidden (view full) --- 621static int 622tzparse(name, sp, lastditch) 623const char * name; 624register struct state * const sp; 625const int lastditch; 626{ 627 const char * stdname; 628 const char * dstname; | 601 leapyear = isleap(year); 602 switch (rulep->r_type) { 603 604 case JULIAN_DAY: 605 /* 606 ** Jn - Julian day, 1 == January 1, 60 == March 1 even in leap 607 ** years. 608 ** In non-leap years, or if the day number is 59 or less, just --- 74 unchanged lines hidden (view full) --- 683static int 684tzparse(name, sp, lastditch) 685const char * name; 686register struct state * const sp; 687const int lastditch; 688{ 689 const char * stdname; 690 const char * dstname; |
629 int stdlen; 630 int dstlen; | 691 size_t stdlen; 692 size_t dstlen; |
631 long stdoffset; 632 long dstoffset; 633 register time_t * atp; 634 register unsigned char * typep; 635 register char * cp; 636 register int load_result; 637 | 693 long stdoffset; 694 long dstoffset; 695 register time_t * atp; 696 register unsigned char * typep; 697 register char * cp; 698 register int load_result; 699 |
700 INITIALIZE(dstname); |
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638 stdname = name; 639 if (lastditch) { 640 stdlen = strlen(name); /* length of standard zone name */ 641 name += stdlen; 642 if (stdlen >= sizeof sp->chars) 643 stdlen = (sizeof sp->chars) - 1; 644 } else { 645 name = getzname(name); --- 70 unchanged lines hidden (view full) --- 716 *typep++ = 0; /* DST begins */ 717 *atp++ = endtime; 718 *typep++ = 1; /* DST ends */ 719 } 720 janfirst += year_lengths[isleap(year)] * 721 SECSPERDAY; 722 } 723 } else { | 701 stdname = name; 702 if (lastditch) { 703 stdlen = strlen(name); /* length of standard zone name */ 704 name += stdlen; 705 if (stdlen >= sizeof sp->chars) 706 stdlen = (sizeof sp->chars) - 1; 707 } else { 708 name = getzname(name); --- 70 unchanged lines hidden (view full) --- 779 *typep++ = 0; /* DST begins */ 780 *atp++ = endtime; 781 *typep++ = 1; /* DST ends */ 782 } 783 janfirst += year_lengths[isleap(year)] * 784 SECSPERDAY; 785 } 786 } else { |
724 int sawstd; 725 int sawdst; 726 long stdfix; 727 long dstfix; 728 long oldfix; 729 int isdst; | 787 register long theirstdoffset; 788 register long theirdstoffset; 789 register long theiroffset; 790 register int isdst; |
730 register int i; | 791 register int i; |
792 register int j; |
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731 732 if (*name != '\0') 733 return -1; 734 if (load_result != 0) 735 return -1; 736 /* | 793 794 if (*name != '\0') 795 return -1; 796 if (load_result != 0) 797 return -1; 798 /* |
737 ** Compute the difference between the real and 738 ** prototype standard and summer time offsets 739 ** from GMT, and put the real standard and summer 740 ** time offsets into the rules in place of the 741 ** prototype offsets. | 799 ** Initial values of theirstdoffset and theirdstoffset. |
742 */ | 800 */ |
743 sawstd = FALSE; 744 sawdst = FALSE; 745 stdfix = 0; 746 dstfix = 0; 747 for (i = 0; i < sp->typecnt; ++i) { 748 if (sp->ttis[i].tt_isdst) { 749 oldfix = dstfix; 750 dstfix = sp->ttis[i].tt_gmtoff + 751 dstoffset; 752 if (sawdst && (oldfix != dstfix)) 753 return -1; 754 sp->ttis[i].tt_gmtoff = -dstoffset; 755 sp->ttis[i].tt_abbrind = stdlen + 1; 756 sawdst = TRUE; 757 } else { 758 oldfix = stdfix; 759 stdfix = sp->ttis[i].tt_gmtoff + 760 stdoffset; 761 if (sawstd && (oldfix != stdfix)) 762 return -1; 763 sp->ttis[i].tt_gmtoff = -stdoffset; 764 sp->ttis[i].tt_abbrind = 0; 765 sawstd = TRUE; | 801 theirstdoffset = 0; 802 for (i = 0; i < sp->timecnt; ++i) { 803 j = sp->types[i]; 804 if (!sp->ttis[j].tt_isdst) { 805 theirstdoffset = -sp->ttis[j].tt_gmtoff; 806 break; |
766 } 767 } | 807 } 808 } |
809 theirdstoffset = 0; 810 for (i = 0; i < sp->timecnt; ++i) { 811 j = sp->types[i]; 812 if (sp->ttis[j].tt_isdst) { 813 theirdstoffset = -sp->ttis[j].tt_gmtoff; 814 break; 815 } 816 } |
|
768 /* | 817 /* |
769 ** Make sure we have both standard and summer time. | 818 ** Initially we're assumed to be in standard time. |
770 */ | 819 */ |
771 if (!sawdst || !sawstd) 772 return -1; | 820 isdst = FALSE; 821 theiroffset = theirstdoffset; |
773 /* | 822 /* |
774 ** Now correct the transition times by shifting 775 ** them by the difference between the real and 776 ** prototype offsets. Note that this difference 777 ** can be different in standard and summer time; 778 ** the prototype probably has a 1-hour difference 779 ** between standard and summer time, but a different 780 ** difference can be specified in TZ. | 823 ** Now juggle transition times and types 824 ** tracking offsets as you do. |
781 */ | 825 */ |
782 isdst = FALSE; /* we start in standard time */ | |
783 for (i = 0; i < sp->timecnt; ++i) { | 826 for (i = 0; i < sp->timecnt; ++i) { |
784 register const struct ttinfo * ttisp; 785 786 /* 787 ** If summer time is in effect, and the 788 ** transition time was not specified as 789 ** standard time, add the summer time 790 ** offset to the transition time; 791 ** otherwise, add the standard time offset 792 ** to the transition time. 793 */ 794 ttisp = &sp->ttis[sp->types[i]]; 795 sp->ats[i] += 796 (isdst && !ttisp->tt_ttisstd) ? 797 dstfix : stdfix; 798 isdst = ttisp->tt_isdst; | 827 j = sp->types[i]; 828 sp->types[i] = sp->ttis[j].tt_isdst; 829 if (sp->ttis[j].tt_ttisgmt) { 830 /* No adjustment to transition time */ 831 } else { 832 /* 833 ** If summer time is in effect, and the 834 ** transition time was not specified as 835 ** standard time, add the summer time 836 ** offset to the transition time; 837 ** otherwise, add the standard time 838 ** offset to the transition time. 839 */ 840 /* 841 ** Transitions from DST to DDST 842 ** will effectively disappear since 843 ** POSIX provides for only one DST 844 ** offset. 845 */ 846 if (isdst && !sp->ttis[j].tt_ttisstd) { 847 sp->ats[i] += dstoffset - 848 theirdstoffset; 849 } else { 850 sp->ats[i] += stdoffset - 851 theirstdoffset; 852 } 853 } 854 theiroffset = -sp->ttis[j].tt_gmtoff; 855 if (sp->ttis[j].tt_isdst) 856 theirdstoffset = theiroffset; 857 else theirstdoffset = theiroffset; |
799 } | 858 } |
859 /* 860 ** Finally, fill in ttis. 861 ** ttisstd and ttisgmt need not be handled. 862 */ 863 sp->ttis[0].tt_gmtoff = -stdoffset; 864 sp->ttis[0].tt_isdst = FALSE; 865 sp->ttis[0].tt_abbrind = 0; 866 sp->ttis[1].tt_gmtoff = -dstoffset; 867 sp->ttis[1].tt_isdst = TRUE; 868 sp->ttis[1].tt_abbrind = stdlen + 1; |
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800 } 801 } else { 802 dstlen = 0; 803 sp->typecnt = 1; /* only standard time */ 804 sp->timecnt = 0; 805 sp->ttis[0].tt_gmtoff = -stdoffset; 806 sp->ttis[0].tt_isdst = 0; 807 sp->ttis[0].tt_abbrind = 0; --- 13 unchanged lines hidden (view full) --- 821 } 822 return 0; 823} 824 825static void 826gmtload(sp) 827struct state * const sp; 828{ | 869 } 870 } else { 871 dstlen = 0; 872 sp->typecnt = 1; /* only standard time */ 873 sp->timecnt = 0; 874 sp->ttis[0].tt_gmtoff = -stdoffset; 875 sp->ttis[0].tt_isdst = 0; 876 sp->ttis[0].tt_abbrind = 0; --- 13 unchanged lines hidden (view full) --- 890 } 891 return 0; 892} 893 894static void 895gmtload(sp) 896struct state * const sp; 897{ |
829 if (tzload(GMT, sp) != 0) 830 (void) tzparse(GMT, sp, TRUE); | 898 if (tzload(gmt, sp) != 0) 899 (void) tzparse(gmt, sp, TRUE); |
831} 832 833#ifndef STD_INSPIRED | 900} 901 902#ifndef STD_INSPIRED |
903/* 904** A non-static declaration of tzsetwall in a system header file 905** may cause a warning about this upcoming static declaration... 906*/ |
|
834static 835#endif /* !defined STD_INSPIRED */ 836void | 907static 908#endif /* !defined STD_INSPIRED */ 909void |
837tzsetwall() | 910tzsetwall P((void)) |
838{ | 911{ |
839 lcl_is_set = TRUE; | 912 if (lcl_is_set < 0) 913 return; 914 lcl_is_set = -1; 915 |
840#ifdef ALL_STATE 841 if (lclptr == NULL) { 842 lclptr = (struct state *) malloc(sizeof *lclptr); 843 if (lclptr == NULL) { 844 settzname(); /* all we can do */ 845 return; 846 } 847 } 848#endif /* defined ALL_STATE */ 849 if (tzload((char *) NULL, lclptr) != 0) 850 gmtload(lclptr); 851 settzname(); 852} 853 854void | 916#ifdef ALL_STATE 917 if (lclptr == NULL) { 918 lclptr = (struct state *) malloc(sizeof *lclptr); 919 if (lclptr == NULL) { 920 settzname(); /* all we can do */ 921 return; 922 } 923 } 924#endif /* defined ALL_STATE */ 925 if (tzload((char *) NULL, lclptr) != 0) 926 gmtload(lclptr); 927 settzname(); 928} 929 930void |
855tzset() | 931tzset P((void)) |
856{ 857 register const char * name; 858 859 name = getenv("TZ"); 860 if (name == NULL) { 861 tzsetwall(); 862 return; 863 } | 932{ 933 register const char * name; 934 935 name = getenv("TZ"); 936 if (name == NULL) { 937 tzsetwall(); 938 return; 939 } |
864 lcl_is_set = TRUE; | 940 941 if (lcl_is_set > 0 && strcmp(lcl_TZname, name) == 0) 942 return; 943 lcl_is_set = (strlen(name) < sizeof(lcl_TZname)); 944 if (lcl_is_set) 945 (void) strcpy(lcl_TZname, name); 946 |
865#ifdef ALL_STATE 866 if (lclptr == NULL) { 867 lclptr = (struct state *) malloc(sizeof *lclptr); 868 if (lclptr == NULL) { 869 settzname(); /* all we can do */ 870 return; 871 } 872 } 873#endif /* defined ALL_STATE */ 874 if (*name == '\0') { 875 /* 876 ** User wants it fast rather than right. 877 */ 878 lclptr->leapcnt = 0; /* so, we're off a little */ 879 lclptr->timecnt = 0; 880 lclptr->ttis[0].tt_gmtoff = 0; 881 lclptr->ttis[0].tt_abbrind = 0; | 947#ifdef ALL_STATE 948 if (lclptr == NULL) { 949 lclptr = (struct state *) malloc(sizeof *lclptr); 950 if (lclptr == NULL) { 951 settzname(); /* all we can do */ 952 return; 953 } 954 } 955#endif /* defined ALL_STATE */ 956 if (*name == '\0') { 957 /* 958 ** User wants it fast rather than right. 959 */ 960 lclptr->leapcnt = 0; /* so, we're off a little */ 961 lclptr->timecnt = 0; 962 lclptr->ttis[0].tt_gmtoff = 0; 963 lclptr->ttis[0].tt_abbrind = 0; |
882 (void) strcpy(lclptr->chars, GMT); | 964 (void) strcpy(lclptr->chars, gmt); |
883 } else if (tzload(name, lclptr) != 0) 884 if (name[0] == ':' || tzparse(name, lclptr, FALSE) != 0) 885 (void) gmtload(lclptr); 886 settzname(); 887} 888 889/* 890** The easy way to behave "as if no library function calls" localtime --- 6 unchanged lines hidden (view full) --- 897 898/*ARGSUSED*/ 899static void 900localsub(timep, offset, tmp) 901const time_t * const timep; 902const long offset; 903struct tm * const tmp; 904{ | 965 } else if (tzload(name, lclptr) != 0) 966 if (name[0] == ':' || tzparse(name, lclptr, FALSE) != 0) 967 (void) gmtload(lclptr); 968 settzname(); 969} 970 971/* 972** The easy way to behave "as if no library function calls" localtime --- 6 unchanged lines hidden (view full) --- 979 980/*ARGSUSED*/ 981static void 982localsub(timep, offset, tmp) 983const time_t * const timep; 984const long offset; 985struct tm * const tmp; 986{ |
905 register const struct state * sp; | 987 register struct state * sp; |
906 register const struct ttinfo * ttisp; 907 register int i; 908 const time_t t = *timep; 909 | 988 register const struct ttinfo * ttisp; 989 register int i; 990 const time_t t = *timep; 991 |
910 if (!lcl_is_set) 911 tzset(); | |
912 sp = lclptr; 913#ifdef ALL_STATE 914 if (sp == NULL) { 915 gmtsub(timep, offset, tmp); 916 return; 917 } 918#endif /* defined ALL_STATE */ 919 if (sp->timecnt == 0 || t < sp->ats[0]) { --- 13 unchanged lines hidden (view full) --- 933 /* 934 ** To get (wrong) behavior that's compatible with System V Release 2.0 935 ** you'd replace the statement below with 936 ** t += ttisp->tt_gmtoff; 937 ** timesub(&t, 0L, sp, tmp); 938 */ 939 timesub(&t, ttisp->tt_gmtoff, sp, tmp); 940 tmp->tm_isdst = ttisp->tt_isdst; | 992 sp = lclptr; 993#ifdef ALL_STATE 994 if (sp == NULL) { 995 gmtsub(timep, offset, tmp); 996 return; 997 } 998#endif /* defined ALL_STATE */ 999 if (sp->timecnt == 0 || t < sp->ats[0]) { --- 13 unchanged lines hidden (view full) --- 1013 /* 1014 ** To get (wrong) behavior that's compatible with System V Release 2.0 1015 ** you'd replace the statement below with 1016 ** t += ttisp->tt_gmtoff; 1017 ** timesub(&t, 0L, sp, tmp); 1018 */ 1019 timesub(&t, ttisp->tt_gmtoff, sp, tmp); 1020 tmp->tm_isdst = ttisp->tt_isdst; |
941 tzname[tmp->tm_isdst] = (char *) &sp->chars[ttisp->tt_abbrind]; | 1021 tzname[tmp->tm_isdst] = &sp->chars[ttisp->tt_abbrind]; |
942#ifdef TM_ZONE | 1022#ifdef TM_ZONE |
943 tmp->TM_ZONE = (char *)&sp->chars[ttisp->tt_abbrind]; | 1023 tmp->TM_ZONE = &sp->chars[ttisp->tt_abbrind]; |
944#endif /* defined TM_ZONE */ 945} 946 947struct tm * 948localtime(timep) 949const time_t * const timep; 950{ | 1024#endif /* defined TM_ZONE */ 1025} 1026 1027struct tm * 1028localtime(timep) 1029const time_t * const timep; 1030{ |
951 static struct tm tm; 952 | 1031 tzset(); |
953 localsub(timep, 0L, &tm); 954 return &tm; 955} 956 957/* 958** gmtsub is to gmtime as localsub is to localtime. 959*/ 960 --- 14 unchanged lines hidden (view full) --- 975 timesub(timep, offset, gmtptr, tmp); 976#ifdef TM_ZONE 977 /* 978 ** Could get fancy here and deliver something such as 979 ** "GMT+xxxx" or "GMT-xxxx" if offset is non-zero, 980 ** but this is no time for a treasure hunt. 981 */ 982 if (offset != 0) | 1032 localsub(timep, 0L, &tm); 1033 return &tm; 1034} 1035 1036/* 1037** gmtsub is to gmtime as localsub is to localtime. 1038*/ 1039 --- 14 unchanged lines hidden (view full) --- 1054 timesub(timep, offset, gmtptr, tmp); 1055#ifdef TM_ZONE 1056 /* 1057 ** Could get fancy here and deliver something such as 1058 ** "GMT+xxxx" or "GMT-xxxx" if offset is non-zero, 1059 ** but this is no time for a treasure hunt. 1060 */ 1061 if (offset != 0) |
983 tmp->TM_ZONE = WILDABBR; | 1062 tmp->TM_ZONE = wildabbr; |
984 else { 985#ifdef ALL_STATE 986 if (gmtptr == NULL) | 1063 else { 1064#ifdef ALL_STATE 1065 if (gmtptr == NULL) |
987 tmp->TM_ZONE = GMT; | 1066 tmp->TM_ZONE = gmt; |
988 else tmp->TM_ZONE = gmtptr->chars; 989#endif /* defined ALL_STATE */ 990#ifndef ALL_STATE 991 tmp->TM_ZONE = gmtptr->chars; 992#endif /* State Farm */ 993 } 994#endif /* defined TM_ZONE */ 995} 996 997struct tm * 998gmtime(timep) 999const time_t * const timep; 1000{ | 1067 else tmp->TM_ZONE = gmtptr->chars; 1068#endif /* defined ALL_STATE */ 1069#ifndef ALL_STATE 1070 tmp->TM_ZONE = gmtptr->chars; 1071#endif /* State Farm */ 1072 } 1073#endif /* defined TM_ZONE */ 1074} 1075 1076struct tm * 1077gmtime(timep) 1078const time_t * const timep; 1079{ |
1001 static struct tm tm; 1002 | |
1003 gmtsub(timep, 0L, &tm); 1004 return &tm; 1005} 1006 1007#ifdef STD_INSPIRED 1008 1009struct tm * 1010offtime(timep, offset) 1011const time_t * const timep; 1012const long offset; 1013{ | 1080 gmtsub(timep, 0L, &tm); 1081 return &tm; 1082} 1083 1084#ifdef STD_INSPIRED 1085 1086struct tm * 1087offtime(timep, offset) 1088const time_t * const timep; 1089const long offset; 1090{ |
1014 static struct tm tm; 1015 | |
1016 gmtsub(timep, offset, &tm); 1017 return &tm; 1018} 1019 1020#endif /* defined STD_INSPIRED */ 1021 1022static void 1023timesub(timep, offset, sp, tmp) --- 45 unchanged lines hidden (view full) --- 1069#ifdef mc68k 1070 if (*timep == 0x80000000) { 1071 /* 1072 ** A 3B1 muffs the division on the most negative number. 1073 */ 1074 days = -24855; 1075 rem = -11648; 1076 } | 1091 gmtsub(timep, offset, &tm); 1092 return &tm; 1093} 1094 1095#endif /* defined STD_INSPIRED */ 1096 1097static void 1098timesub(timep, offset, sp, tmp) --- 45 unchanged lines hidden (view full) --- 1144#ifdef mc68k 1145 if (*timep == 0x80000000) { 1146 /* 1147 ** A 3B1 muffs the division on the most negative number. 1148 */ 1149 days = -24855; 1150 rem = -11648; 1151 } |
1077#endif /* mc68k */ | 1152#endif /* defined mc68k */ |
1078 rem += (offset - corr); 1079 while (rem < 0) { 1080 rem += SECSPERDAY; 1081 --days; 1082 } 1083 while (rem >= SECSPERDAY) { 1084 rem -= SECSPERDAY; 1085 ++days; --- 36 unchanged lines hidden (view full) --- 1122 tmp->TM_GMTOFF = offset; 1123#endif /* defined TM_GMTOFF */ 1124} 1125 1126char * 1127ctime(timep) 1128const time_t * const timep; 1129{ | 1153 rem += (offset - corr); 1154 while (rem < 0) { 1155 rem += SECSPERDAY; 1156 --days; 1157 } 1158 while (rem >= SECSPERDAY) { 1159 rem -= SECSPERDAY; 1160 ++days; --- 36 unchanged lines hidden (view full) --- 1197 tmp->TM_GMTOFF = offset; 1198#endif /* defined TM_GMTOFF */ 1199} 1200 1201char * 1202ctime(timep) 1203const time_t * const timep; 1204{ |
1205/* 1206** Section 4.12.3.2 of X3.159-1989 requires that 1207** The ctime funciton converts the calendar time pointed to by timer 1208** to local time in the form of a string. It is equivalent to 1209** asctime(localtime(timer)) 1210*/ |
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1130 return asctime(localtime(timep)); 1131} 1132 1133/* 1134** Adapted from code provided by Robert Elz, who writes: 1135** The "best" way to do mktime I think is based on an idea of Bob 1136** Kridle's (so its said...) from a long time ago. (mtxinu!kridle now). 1137** It does a binary search of the time_t space. Since time_t's are --- 9 unchanged lines hidden (view full) --- 1147** Simplified normalize logic courtesy Paul Eggert (eggert@twinsun.com). 1148*/ 1149 1150static int 1151increment_overflow(number, delta) 1152int * number; 1153int delta; 1154{ | 1211 return asctime(localtime(timep)); 1212} 1213 1214/* 1215** Adapted from code provided by Robert Elz, who writes: 1216** The "best" way to do mktime I think is based on an idea of Bob 1217** Kridle's (so its said...) from a long time ago. (mtxinu!kridle now). 1218** It does a binary search of the time_t space. Since time_t's are --- 9 unchanged lines hidden (view full) --- 1228** Simplified normalize logic courtesy Paul Eggert (eggert@twinsun.com). 1229*/ 1230 1231static int 1232increment_overflow(number, delta) 1233int * number; 1234int delta; 1235{ |
1155 int number0; | 1236 int number0; |
1156 1157 number0 = *number; 1158 *number += delta; 1159 return (*number < number0) != (delta < 0); 1160} 1161 1162static int 1163normalize_overflow(tensptr, unitsptr, base) --- 24 unchanged lines hidden (view full) --- 1188 (result = (atmp->tm_min - btmp->tm_min)) == 0) 1189 result = atmp->tm_sec - btmp->tm_sec; 1190 return result; 1191} 1192 1193static time_t 1194time2(tmp, funcp, offset, okayp) 1195struct tm * const tmp; | 1237 1238 number0 = *number; 1239 *number += delta; 1240 return (*number < number0) != (delta < 0); 1241} 1242 1243static int 1244normalize_overflow(tensptr, unitsptr, base) --- 24 unchanged lines hidden (view full) --- 1269 (result = (atmp->tm_min - btmp->tm_min)) == 0) 1270 result = atmp->tm_sec - btmp->tm_sec; 1271 return result; 1272} 1273 1274static time_t 1275time2(tmp, funcp, offset, okayp) 1276struct tm * const tmp; |
1196void (* const funcp)(); | 1277void (* const funcp) P((const time_t*, long, struct tm*)); |
1197const long offset; 1198int * const okayp; 1199{ 1200 register const struct state * sp; 1201 register int dir; 1202 register int bits; 1203 register int i, j ; 1204 register int saved_seconds; --- 128 unchanged lines hidden (view full) --- 1333 (*funcp)(&t, offset, tmp); 1334 *okayp = TRUE; 1335 return t; 1336} 1337 1338static time_t 1339time1(tmp, funcp, offset) 1340struct tm * const tmp; | 1278const long offset; 1279int * const okayp; 1280{ 1281 register const struct state * sp; 1282 register int dir; 1283 register int bits; 1284 register int i, j ; 1285 register int saved_seconds; --- 128 unchanged lines hidden (view full) --- 1414 (*funcp)(&t, offset, tmp); 1415 *okayp = TRUE; 1416 return t; 1417} 1418 1419static time_t 1420time1(tmp, funcp, offset) 1421struct tm * const tmp; |
1341void (* const funcp)(); | 1422void (* const funcp) P((const time_t*, long, struct tm*)); |
1342const long offset; 1343{ 1344 register time_t t; 1345 register const struct state * sp; 1346 register int samei, otheri; 1347 int okay; 1348 1349 if (tmp->tm_isdst > 1) --- 46 unchanged lines hidden (view full) --- 1396 } 1397 return WRONG; 1398} 1399 1400time_t 1401mktime(tmp) 1402struct tm * const tmp; 1403{ | 1423const long offset; 1424{ 1425 register time_t t; 1426 register const struct state * sp; 1427 register int samei, otheri; 1428 int okay; 1429 1430 if (tmp->tm_isdst > 1) --- 46 unchanged lines hidden (view full) --- 1477 } 1478 return WRONG; 1479} 1480 1481time_t 1482mktime(tmp) 1483struct tm * const tmp; 1484{ |
1485 tzset(); |
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1404 return time1(tmp, localsub, 0L); 1405} 1406 1407#ifdef STD_INSPIRED 1408 1409time_t 1410timelocal(tmp) 1411struct tm * const tmp; --- 58 unchanged lines hidden (view full) --- 1470static long 1471leapcorr(timep) 1472time_t * timep; 1473{ 1474 register struct state * sp; 1475 register struct lsinfo * lp; 1476 register int i; 1477 | 1486 return time1(tmp, localsub, 0L); 1487} 1488 1489#ifdef STD_INSPIRED 1490 1491time_t 1492timelocal(tmp) 1493struct tm * const tmp; --- 58 unchanged lines hidden (view full) --- 1552static long 1553leapcorr(timep) 1554time_t * timep; 1555{ 1556 register struct state * sp; 1557 register struct lsinfo * lp; 1558 register int i; 1559 |
1478 if (!lcl_is_set) 1479 (void) tzset(); | |
1480 sp = lclptr; 1481 i = sp->leapcnt; 1482 while (--i >= 0) { 1483 lp = &sp->lsis[i]; 1484 if (*timep >= lp->ls_trans) 1485 return lp->ls_corr; 1486 } 1487 return 0; 1488} 1489 1490time_t 1491time2posix(t) 1492time_t t; 1493{ | 1560 sp = lclptr; 1561 i = sp->leapcnt; 1562 while (--i >= 0) { 1563 lp = &sp->lsis[i]; 1564 if (*timep >= lp->ls_trans) 1565 return lp->ls_corr; 1566 } 1567 return 0; 1568} 1569 1570time_t 1571time2posix(t) 1572time_t t; 1573{ |
1574 tzset(); |
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1494 return t - leapcorr(&t); 1495} 1496 1497time_t 1498posix2time(t) 1499time_t t; 1500{ 1501 time_t x; 1502 time_t y; 1503 | 1575 return t - leapcorr(&t); 1576} 1577 1578time_t 1579posix2time(t) 1580time_t t; 1581{ 1582 time_t x; 1583 time_t y; 1584 |
1585 tzset(); |
|
1504 /* 1505 ** For a positive leap second hit, the result 1506 ** is not unique. For a negative leap second 1507 ** hit, the corresponding time doesn't exist, 1508 ** so we return an adjacent second. 1509 */ 1510 x = t + leapcorr(&t); 1511 y = x - leapcorr(&x); --- 19 unchanged lines hidden --- | 1586 /* 1587 ** For a positive leap second hit, the result 1588 ** is not unique. For a negative leap second 1589 ** hit, the corresponding time doesn't exist, 1590 ** so we return an adjacent second. 1591 */ 1592 x = t + leapcorr(&t); 1593 y = x - leapcorr(&x); --- 19 unchanged lines hidden --- |