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