1 /* 2 * Based on FreeBSD lib9.h 3 * Copyright © 1998, 1999 Lucent Technologies Inc. All rights reserved. 4 * Revisions Copyright © 1999, 2002 Vita Nuova Limited. All rights reserved. 5 * Revisions Copyright © 2002, 2003 Corpus Callosum Corporation. All rights reserved. 6 */ 7 8 /* define _BSD_SOURCE to use ISO C, POSIX, and 4.4BSD things. */ 9 #ifndef _BSD_SOURCE 10 #define _BSD_SOURCE 11 #endif 12 #define _LARGEFILE64_SOURCE 1 13 #define _FILE_OFFSET_BITS 64 14 15 #include <sys/types.h> 16 #include <sys/stat.h> 17 #include <stdlib.h> 18 #include <stdarg.h> 19 #include <unistd.h> 20 #include <errno.h> 21 #include <string.h> 22 // #include "math.h" 23 #include <fcntl.h> 24 #include <setjmp.h> 25 #include <float.h> 26 #include <time.h> 27 28 #define nil ((void*)0) 29 30 // typedef unsigned short ushort; 31 typedef unsigned char uchar; 32 typedef unsigned long ulong; 33 // typedef unsigned int uint; 34 typedef signed char schar; 35 typedef long long vlong; 36 typedef unsigned long long uvlong; 37 typedef ushort Rune; 38 typedef unsigned int u32int; 39 typedef uvlong u64int; 40 41 typedef unsigned int mpdigit; /* for /sys/include/mp.h */ 42 typedef unsigned short u16int; 43 typedef unsigned char u8int; 44 typedef unsigned long uintptr; 45 46 typedef signed char int8; 47 typedef unsigned char uint8; 48 typedef short int16; 49 typedef unsigned short uint16; 50 typedef int int32; 51 typedef unsigned int uint32; 52 typedef long long int64; 53 typedef unsigned long long uint64; 54 55 /* handle conflicts with host os libs */ 56 #define getwd infgetwd 57 #define scalb infscalb 58 #define div infdiv 59 #define panic infpanic 60 #define rint infrint 61 #define rcmd infrcmd 62 #define pow10 infpow10 63 64 #ifndef EMU 65 typedef struct Proc Proc; 66 #endif 67 68 /* 69 * math module dtoa 70 */ 71 #include <machine/endian.h> 72 #define __BIG_ENDIAN 73 74 #define USED(x) if(x){}else{} 75 #define SET(x) 76 77 #define nelem(x) (sizeof(x)/sizeof((x)[0])) 78 #undef offsetof 79 #undef assert 80 #define offsetof(s, m) (ulong)(&(((s*)0)->m)) 81 #define assert(x) if(x){}else _assert("x") 82 83 /* 84 * mem and string routines are declared by ANSI/POSIX files above 85 */ 86 87 extern char* strecpy(char*, char*, char*); 88 extern char* strdup(const char*); 89 extern int cistrncmp(char*, char*, int); 90 extern int cistrcmp(char*, char*); 91 extern char* cistrstr(char*, char*); 92 extern int tokenize(char*, char**, int); 93 extern vlong strtoll(const char*, char**, int); 94 #define qsort infqsort 95 extern void qsort(void*, long, long, int (*)(void*, void*)); 96 97 enum 98 { 99 UTFmax = 3, /* maximum bytes per rune */ 100 Runesync = 0x80, /* cannot represent part of a UTF sequence (<) */ 101 Runeself = 0x80, /* rune and UTF sequences are the same (<) */ 102 Runeerror = 0x80 /* decoding error in UTF */ 103 }; 104 105 /* 106 * rune routines 107 */ 108 extern int runetochar(char*, Rune*); 109 extern int chartorune(Rune*, char*); 110 extern int runelen(long); 111 extern int runenlen(Rune*, int); 112 extern int fullrune(char*, int); 113 extern int utflen(char*); 114 extern int utfnlen(char*, long); 115 extern char* utfrune(char*, long); 116 extern char* utfrrune(char*, long); 117 extern char* utfutf(char*, char*); 118 extern char* utfecpy(char*, char*, char*); 119 120 extern Rune* runestrcat(Rune*, Rune*); 121 extern Rune* runestrchr(Rune*, Rune); 122 extern int runestrcmp(Rune*, Rune*); 123 extern Rune* runestrcpy(Rune*, Rune*); 124 extern Rune* runestrncpy(Rune*, Rune*, long); 125 extern Rune* runestrecpy(Rune*, Rune*, Rune*); 126 extern Rune* runestrdup(Rune*); 127 extern Rune* runestrncat(Rune*, Rune*, long); 128 extern int runestrncmp(Rune*, Rune*, long); 129 extern Rune* runestrrchr(Rune*, Rune); 130 extern long runestrlen(Rune*); 131 extern Rune* runestrstr(Rune*, Rune*); 132 133 extern Rune tolowerrune(Rune); 134 extern Rune totitlerune(Rune); 135 extern Rune toupperrune(Rune); 136 extern int isalpharune(Rune); 137 extern int islowerrune(Rune); 138 extern int isspacerune(Rune); 139 extern int istitlerune(Rune); 140 extern int isupperrune(Rune); 141 142 /* 143 * malloc 144 */ 145 extern void* malloc(size_t); 146 extern void* mallocz(ulong, int); 147 extern void free(void*); 148 extern ulong msize(void*); 149 extern void* calloc(size_t, size_t); 150 extern void* realloc(void*, size_t); 151 extern void setmalloctag(void*, ulong); 152 extern void setrealloctag(void*, ulong); 153 extern ulong getmalloctag(void*); 154 extern ulong getrealloctag(void*); 155 extern void* malloctopoolblock(void*); 156 157 /* 158 * print routines 159 */ 160 typedef struct Fmt Fmt; 161 struct Fmt{ 162 uchar runes; /* output buffer is runes or chars? */ 163 void *start; /* of buffer */ 164 void *to; /* current place in the buffer */ 165 void *stop; /* end of the buffer; overwritten if flush fails */ 166 int (*flush)(Fmt *); /* called when to == stop */ 167 void *farg; /* to make flush a closure */ 168 int nfmt; /* num chars formatted so far */ 169 va_list args; /* args passed to dofmt */ 170 int r; /* % format Rune */ 171 int width; 172 int prec; 173 ulong flags; 174 }; 175 176 enum{ 177 FmtWidth = 1, 178 FmtLeft = FmtWidth << 1, 179 FmtPrec = FmtLeft << 1, 180 FmtSharp = FmtPrec << 1, 181 FmtSpace = FmtSharp << 1, 182 FmtSign = FmtSpace << 1, 183 FmtZero = FmtSign << 1, 184 FmtUnsigned = FmtZero << 1, 185 FmtShort = FmtUnsigned << 1, 186 FmtLong = FmtShort << 1, 187 FmtVLong = FmtLong << 1, 188 FmtComma = FmtVLong << 1, 189 FmtByte = FmtComma << 1, 190 191 FmtFlag = FmtByte << 1 192 }; 193 194 extern int print(char*, ...); 195 extern char* seprint(char*, char*, char*, ...); 196 extern char* vseprint(char*, char*, char*, va_list); 197 extern int snprint(char*, int, char*, ...); 198 extern int vsnprint(char*, int, char*, va_list); 199 extern char* smprint(char*, ...); 200 extern char* vsmprint(char*, va_list); 201 extern int sprint(char*, char*, ...); 202 extern int fprint(int, char*, ...); 203 extern int vfprint(int, char*, va_list); 204 205 extern int runesprint(Rune*, char*, ...); 206 extern int runesnprint(Rune*, int, char*, ...); 207 extern int runevsnprint(Rune*, int, char*, va_list); 208 extern Rune* runeseprint(Rune*, Rune*, char*, ...); 209 extern Rune* runevseprint(Rune*, Rune*, char*, va_list); 210 extern Rune* runesmprint(char*, ...); 211 extern Rune* runevsmprint(char*, va_list); 212 213 extern int fmtfdinit(Fmt*, int, char*, int); 214 extern int fmtfdflush(Fmt*); 215 extern int fmtstrinit(Fmt*); 216 extern char* fmtstrflush(Fmt*); 217 extern int runefmtstrinit(Fmt*); 218 extern Rune* runefmtstrflush(Fmt*); 219 220 extern int fmtinstall(int, int (*)(Fmt*)); 221 extern int dofmt(Fmt*, char*); 222 extern int dorfmt(Fmt*, Rune*); 223 extern int fmtprint(Fmt*, char*, ...); 224 extern int fmtvprint(Fmt*, char*, va_list); 225 extern int fmtrune(Fmt*, int); 226 extern int fmtstrcpy(Fmt*, char*); 227 extern int fmtrunestrcpy(Fmt*, Rune*); 228 /* 229 * error string for %r 230 * supplied on per os basis, not part of fmt library 231 */ 232 extern int errfmt(Fmt *f); 233 234 /* 235 * quoted strings 236 */ 237 extern char *unquotestrdup(char*); 238 extern Rune *unquoterunestrdup(Rune*); 239 extern char *quotestrdup(char*); 240 extern Rune *quoterunestrdup(Rune*); 241 extern int quotestrfmt(Fmt*); 242 extern int quoterunestrfmt(Fmt*); 243 extern void quotefmtinstall(void); 244 extern int (*doquote)(int); 245 246 /* 247 * random number 248 */ 249 250 extern int nrand(int); 251 extern ulong truerand(void); 252 extern ulong ntruerand(ulong); 253 254 /* 255 * math 256 */ 257 extern int isNaN(double); 258 extern int isInf(double, int); 259 extern double pow(double, double); 260 261 /* 262 * Time-of-day 263 */ 264 265 typedef struct Tm Tm; 266 struct Tm { 267 int sec; 268 int min; 269 int hour; 270 int mday; 271 int mon; 272 int year; 273 int wday; 274 int yday; 275 char zone[4]; 276 int tzoff; 277 }; 278 extern vlong osnsec(void); 279 #define nsec osnsec 280 281 /* 282 * one-of-a-kind 283 */ 284 extern void _assert(char*); 285 extern double charstod(int(*)(void*), void*); 286 extern char* cleanname(char*); 287 extern double frexp(double, int*); 288 extern uintptr getcallerpc(void*); 289 extern int getfields(char*, char**, int, int, char*); 290 extern char* getuser(void); 291 extern char* getwd(char*, int); 292 extern double ipow10(int); 293 extern double ldexp(double, int); 294 extern double modf(double, double*); 295 extern void perror(const char*); 296 extern double pow10(int); 297 extern uvlong strtoull(const char*, char**, int); 298 extern void sysfatal(char*, ...); 299 extern int dec64(uchar*, int, char*, int); 300 extern int enc64(char*, int, uchar*, int); 301 extern int dec32(uchar*, int, char*, int); 302 extern int enc32(char*, int, uchar*, int); 303 extern int dec16(uchar*, int, char*, int); 304 extern int enc16(char*, int, uchar*, int); 305 extern int encodefmt(Fmt*); 306 307 /* 308 * synchronization 309 */ 310 typedef 311 struct Lock { 312 int val; 313 int pid; 314 } Lock; 315 316 extern int _tas(int*); 317 318 extern void lock(Lock*); 319 extern void unlock(Lock*); 320 extern int canlock(Lock*); 321 322 typedef struct QLock QLock; 323 struct QLock 324 { 325 Lock use; /* to access Qlock structure */ 326 Proc *head; /* next process waiting for object */ 327 Proc *tail; /* last process waiting for object */ 328 int locked; /* flag */ 329 }; 330 331 extern void qlock(QLock*); 332 extern void qunlock(QLock*); 333 extern int canqlock(QLock*); 334 extern void _qlockinit(ulong (*)(ulong, ulong)); /* called only by the thread library */ 335 336 typedef 337 struct RWLock 338 { 339 Lock l; /* Lock modify lock */ 340 QLock x; /* Mutual exclusion lock */ 341 QLock k; /* Lock for waiting writers */ 342 int readers; /* Count of readers in lock */ 343 } RWLock; 344 345 extern int canrlock(RWLock*); 346 extern int canwlock(RWLock*); 347 extern void rlock(RWLock*); 348 extern void runlock(RWLock*); 349 extern void wlock(RWLock*); 350 extern void wunlock(RWLock*); 351 352 /* 353 * network dialing 354 */ 355 #define NETPATHLEN 40 356 357 /* 358 * system calls 359 * 360 */ 361 362 #define STATMAX 65535U /* max length of machine-independent stat structure */ 363 #define DIRMAX (sizeof(Dir)+STATMAX) /* max length of Dir structure */ 364 #define ERRMAX 128 /* max length of error string */ 365 366 #define MORDER 0x0003 /* mask for bits defining order of mounting */ 367 #define MREPL 0x0000 /* mount replaces object */ 368 #define MBEFORE 0x0001 /* mount goes before others in union directory */ 369 #define MAFTER 0x0002 /* mount goes after others in union directory */ 370 #define MCREATE 0x0004 /* permit creation in mounted directory */ 371 #define MCACHE 0x0010 /* cache some data */ 372 #define MMASK 0x0017 /* all bits on */ 373 374 #define OREAD 0 /* open for read */ 375 #define OWRITE 1 /* write */ 376 #define ORDWR 2 /* read and write */ 377 #define OEXEC 3 /* execute, == read but check execute permission */ 378 #define OTRUNC 16 /* or'ed in (except for exec), truncate file first */ 379 #define OCEXEC 32 /* or'ed in, close on exec */ 380 #define ORCLOSE 64 /* or'ed in, remove on close */ 381 #define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */ 382 383 #define AEXIST 0 /* accessible: exists */ 384 #define AEXEC 1 /* execute access */ 385 #define AWRITE 2 /* write access */ 386 #define AREAD 4 /* read access */ 387 388 /* bits in Qid.type */ 389 #define QTDIR 0x80 /* type bit for directories */ 390 #define QTAPPEND 0x40 /* type bit for append only files */ 391 #define QTEXCL 0x20 /* type bit for exclusive use files */ 392 #define QTMOUNT 0x10 /* type bit for mounted channel */ 393 #define QTAUTH 0x08 /* type bit for authentication file */ 394 #define QTFILE 0x00 /* plain file */ 395 396 /* bits in Dir.mode */ 397 #define DMDIR 0x80000000 /* mode bit for directories */ 398 #define DMAPPEND 0x40000000 /* mode bit for append only files */ 399 #define DMEXCL 0x20000000 /* mode bit for exclusive use files */ 400 #define DMMOUNT 0x10000000 /* mode bit for mounted channel */ 401 #define DMAUTH 0x08000000 /* mode bit for authentication file */ 402 #define DMREAD 0x4 /* mode bit for read permission */ 403 #define DMWRITE 0x2 /* mode bit for write permission */ 404 #define DMEXEC 0x1 /* mode bit for execute permission */ 405 406 typedef 407 struct Qid 408 { 409 uvlong path; 410 ulong vers; 411 uchar type; 412 } Qid; 413 414 typedef 415 struct Dir { 416 /* system-modified data */ 417 ushort type; /* server type */ 418 uint dev; /* server subtype */ 419 /* file data */ 420 Qid qid; /* unique id from server */ 421 ulong mode; /* permissions */ 422 ulong atime; /* last read time */ 423 ulong mtime; /* last write time */ 424 vlong length; /* file length */ 425 char *name; /* last element of path */ 426 char *uid; /* owner name */ 427 char *gid; /* group name */ 428 char *muid; /* last modifier name */ 429 } Dir; 430 431 extern Dir* dirstat(char*); 432 extern Dir* dirfstat(int); 433 extern int dirwstat(char*, Dir*); 434 extern int dirfwstat(int, Dir*); 435 extern long dirread(int, Dir**); 436 extern void nulldir(Dir*); 437 extern long dirreadall(int, Dir**); 438 439 typedef 440 struct Waitmsg 441 { 442 int pid; /* of loved one */ 443 ulong time[3]; /* of loved one & descendants */ 444 char *msg; 445 } Waitmsg; 446 447 extern void _exits(char*); 448 449 extern void exits(char*); 450 extern int create(char*, int, int); 451 extern int errstr(char*, uint); 452 453 extern void perror(const char*); 454 extern long readn(int, void*, long); 455 extern int remove(const char*); 456 extern void rerrstr(char*, uint); 457 extern vlong seek(int, vlong, int); 458 extern int segflush(void*, ulong); 459 extern void werrstr(char*, ...); 460 461 extern char *argv0; 462 #define ARGBEGIN for((argv0||(argv0=*argv)),argv++,argc--;\ 463 argv[0] && argv[0][0]=='-' && argv[0][1];\ 464 argc--, argv++) {\ 465 char *_args, *_argt;\ 466 Rune _argc;\ 467 _args = &argv[0][1];\ 468 if(_args[0]=='-' && _args[1]==0){\ 469 argc--; argv++; break;\ 470 }\ 471 _argc = 0;\ 472 while(*_args && (_args += chartorune(&_argc, _args)))\ 473 switch(_argc) 474 #define ARGEND SET(_argt);USED(_argt);USED(_argc); USED(_args);}USED(argv); USED(argc); 475 #define ARGF() (_argt=_args, _args="",\ 476 (*_argt? _argt: argv[1]? (argc--, *++argv): 0)) 477 #define EARGF(x) (_argt=_args, _args="",\ 478 (*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0))) 479 480 #define ARGC() _argc 481 482 /* 483 * Extensions for Inferno to basic libc.h 484 */ 485 486 #define setbinmode() 487 488