1 /* define _BSD_SOURCE to use ISO C, POSIX, and 4.3BSD things. */ 2 #ifndef _BSD_SOURCE 3 #define _BSD_SOURCE 4 #endif 5 /* these aren't really needed because FreeBSD does the right thing and makes off_t 64 bits, full stop */ 6 #define _LARGEFILE64_SOURCE 1 7 #define _FILE_OFFSET_BITS 64 8 #include <sys/types.h> 9 #include <sys/stat.h> 10 #include <stdlib.h> 11 #include <stdarg.h> 12 #include <unistd.h> 13 #include <errno.h> 14 #include <string.h> 15 #include "math.h" 16 #include <fcntl.h> 17 #include <setjmp.h> 18 #include <float.h> 19 #include <time.h> 20 21 #define getwd infgetwd 22 23 #define round infround 24 #define fmax inffmax 25 #define log2 inflog2 26 27 #ifndef EMU 28 typedef struct Proc Proc; 29 #endif 30 31 /* 32 * math module dtoa 33 */ 34 #define __LITTLE_ENDIAN 35 36 #define nil ((void*)0) 37 38 typedef unsigned char uchar; 39 typedef signed char schar; 40 typedef unsigned long ulong; 41 typedef unsigned int Rune; 42 typedef long long int vlong; 43 typedef unsigned long long int uvlong; 44 typedef unsigned int u32int; 45 typedef uvlong u64int; 46 47 typedef unsigned int mpdigit; /* for /sys/include/mp.h */ 48 typedef unsigned short u16int; 49 typedef unsigned char u8int; 50 typedef unsigned long uintptr; 51 52 typedef signed char int8; 53 typedef unsigned char uint8; 54 typedef short int16; 55 typedef unsigned short uint16; 56 typedef int int32; 57 typedef unsigned int uint32; 58 typedef long long int64; 59 typedef unsigned long long uint64; 60 61 #define USED(x) if(x){}else{} 62 #define SET(x) 63 64 #undef nelem 65 #define nelem(x) (sizeof(x)/sizeof((x)[0])) 66 #undef offsetof 67 #define offsetof(s, m) (ulong)(&(((s*)0)->m)) 68 #undef assert 69 #define assert(x) if(x){}else _assert("x") 70 71 /* 72 * most mem and string routines are declared by ANSI/POSIX files above 73 */ 74 75 extern char* strecpy(char*, char*, char*); 76 extern char* strdup(const char*); 77 extern int cistrncmp(char*, char*, int); 78 extern int cistrcmp(char*, char*); 79 extern char* cistrstr(char*, char*); 80 extern int tokenize(char*, char**, int); 81 82 enum 83 { 84 UTFmax = 4, /* maximum bytes per rune */ 85 Runesync = 0x80, /* cannot represent part of a UTF sequence (<) */ 86 Runeself = 0x80, /* rune and UTF sequences are the same (<) */ 87 Runeerror = 0xFFFD, /* decoding error in UTF */ 88 Runemax = 0x10FFFF, /* 21-bit rune */ 89 Runemask = 0x1FFFFF, /* bits used by runes (see grep) */ 90 }; 91 92 /* 93 * rune routines 94 */ 95 extern int runetochar(char*, Rune*); 96 extern int chartorune(Rune*, char*); 97 extern int runelen(long); 98 extern int runenlen(Rune*, int); 99 extern int fullrune(char*, int); 100 extern int utflen(char*); 101 extern int utfnlen(char*, long); 102 extern char* utfrune(char*, long); 103 extern char* utfrrune(char*, long); 104 extern char* utfutf(char*, char*); 105 extern char* utfecpy(char*, char*, char*); 106 107 extern Rune* runestrcat(Rune*, Rune*); 108 extern Rune* runestrchr(Rune*, Rune); 109 extern int runestrcmp(Rune*, Rune*); 110 extern Rune* runestrcpy(Rune*, Rune*); 111 extern Rune* runestrncpy(Rune*, Rune*, long); 112 extern Rune* runestrecpy(Rune*, Rune*, Rune*); 113 extern Rune* runestrdup(Rune*); 114 extern Rune* runestrncat(Rune*, Rune*, long); 115 extern int runestrncmp(Rune*, Rune*, long); 116 extern Rune* runestrrchr(Rune*, Rune); 117 extern long runestrlen(Rune*); 118 extern Rune* runestrstr(Rune*, Rune*); 119 120 extern Rune tolowerrune(Rune); 121 extern Rune totitlerune(Rune); 122 extern Rune toupperrune(Rune); 123 extern int isalpharune(Rune); 124 extern int islowerrune(Rune); 125 extern int isspacerune(Rune); 126 extern int istitlerune(Rune); 127 extern int isupperrune(Rune); 128 129 /* 130 * malloc 131 */ 132 extern void* malloc(size_t); 133 extern void* mallocz(ulong, int); 134 extern void free(void*); 135 extern ulong msize(void*); 136 extern void* calloc(size_t, size_t); 137 extern void* realloc(void*, size_t); 138 extern void setmalloctag(void*, ulong); 139 extern void setrealloctag(void*, ulong); 140 extern ulong getmalloctag(void*); 141 extern ulong getrealloctag(void*); 142 extern void* malloctopoolblock(void*); 143 144 /* 145 * print routines 146 */ 147 typedef struct Fmt Fmt; 148 struct Fmt{ 149 uchar runes; /* output buffer is runes or chars? */ 150 void *start; /* of buffer */ 151 void *to; /* current place in the buffer */ 152 void *stop; /* end of the buffer; overwritten if flush fails */ 153 int (*flush)(Fmt *); /* called when to == stop */ 154 void *farg; /* to make flush a closure */ 155 int nfmt; /* num chars formatted so far */ 156 va_list args; /* args passed to dofmt */ 157 int r; /* % format Rune */ 158 int width; 159 int prec; 160 ulong flags; 161 }; 162 163 enum{ 164 FmtWidth = 1, 165 FmtLeft = FmtWidth << 1, 166 FmtPrec = FmtLeft << 1, 167 FmtSharp = FmtPrec << 1, 168 FmtSpace = FmtSharp << 1, 169 FmtSign = FmtSpace << 1, 170 FmtZero = FmtSign << 1, 171 FmtUnsigned = FmtZero << 1, 172 FmtShort = FmtUnsigned << 1, 173 FmtLong = FmtShort << 1, 174 FmtVLong = FmtLong << 1, 175 FmtComma = FmtVLong << 1, 176 FmtByte = FmtComma << 1, 177 178 FmtFlag = FmtByte << 1 179 }; 180 181 extern int print(char*, ...); 182 extern char* seprint(char*, char*, char*, ...); 183 extern char* vseprint(char*, char*, char*, va_list); 184 extern int snprint(char*, int, char*, ...); 185 extern int vsnprint(char*, int, char*, va_list); 186 extern char* smprint(char*, ...); 187 extern char* vsmprint(char*, va_list); 188 extern int sprint(char*, char*, ...); 189 extern int fprint(int, char*, ...); 190 extern int vfprint(int, char*, va_list); 191 192 extern int runesprint(Rune*, char*, ...); 193 extern int runesnprint(Rune*, int, char*, ...); 194 extern int runevsnprint(Rune*, int, char*, va_list); 195 extern Rune* runeseprint(Rune*, Rune*, char*, ...); 196 extern Rune* runevseprint(Rune*, Rune*, char*, va_list); 197 extern Rune* runesmprint(char*, ...); 198 extern Rune* runevsmprint(char*, va_list); 199 200 extern int fmtfdinit(Fmt*, int, char*, int); 201 extern int fmtfdflush(Fmt*); 202 extern int fmtstrinit(Fmt*); 203 extern char* fmtstrflush(Fmt*); 204 extern int runefmtstrinit(Fmt*); 205 extern Rune* runefmtstrflush(Fmt*); 206 207 extern int fmtinstall(int, int (*)(Fmt*)); 208 extern int dofmt(Fmt*, char*); 209 extern int dorfmt(Fmt*, Rune*); 210 extern int fmtprint(Fmt*, char*, ...); 211 extern int fmtvprint(Fmt*, char*, va_list); 212 extern int fmtrune(Fmt*, int); 213 extern int fmtstrcpy(Fmt*, char*); 214 extern int fmtrunestrcpy(Fmt*, Rune*); 215 /* 216 * error string for %r 217 * supplied on per os basis, not part of fmt library 218 */ 219 extern int errfmt(Fmt *f); 220 221 /* 222 * quoted strings 223 */ 224 extern char *unquotestrdup(char*); 225 extern Rune *unquoterunestrdup(Rune*); 226 extern char *quotestrdup(char*); 227 extern Rune *quoterunestrdup(Rune*); 228 extern int quotestrfmt(Fmt*); 229 extern int quoterunestrfmt(Fmt*); 230 extern void quotefmtinstall(void); 231 extern int (*doquote)(int); 232 233 /* 234 * random number 235 */ 236 extern int nrand(int); 237 extern ulong truerand(void); 238 extern ulong ntruerand(ulong); 239 240 /* 241 * math 242 */ 243 extern int isNaN(double); 244 extern int isInf(double, int); 245 extern double pow(double, double); 246 247 /* 248 * Time-of-day 249 */ 250 251 typedef struct Tm Tm; 252 struct Tm { 253 int sec; 254 int min; 255 int hour; 256 int mday; 257 int mon; 258 int year; 259 int wday; 260 int yday; 261 char zone[4]; 262 int tzoff; 263 }; 264 extern vlong osnsec(void); 265 #define nsec osnsec 266 267 /* 268 * one-of-a-kind 269 */ 270 extern void _assert(char*); 271 extern double charstod(int(*)(void*), void*); 272 extern char* cleanname(char*); 273 extern double frexp(double, int*); 274 extern uintptr getcallerpc(void*); 275 extern int getfields(char*, char**, int, int, char*); 276 extern char* getuser(void); 277 extern char* getwd(char*, int); 278 extern double ipow10(int); 279 extern double ldexp(double, int); 280 extern double modf(double, double*); 281 #define pow10 infpow10 282 extern double pow10(int); 283 extern vlong strtoll(const char*, char**, int); 284 #define qsort infqsort 285 extern void qsort(void*, long, long, int (*)(void*, void*)); 286 extern uvlong strtoull(const char*, char**, int); 287 extern void sysfatal(char*, ...); 288 extern int dec64(uchar*, int, char*, int); 289 extern int enc64(char*, int, uchar*, int); 290 extern int dec32(uchar*, int, char*, int); 291 extern int enc32(char*, int, uchar*, int); 292 extern int dec16(uchar*, int, char*, int); 293 extern int enc16(char*, int, uchar*, int); 294 extern int encodefmt(Fmt*); 295 296 /* 297 * synchronization 298 */ 299 typedef 300 struct Lock { 301 int val; 302 int pid; 303 } Lock; 304 305 extern int _tas(int*); 306 307 extern void lock(Lock*); 308 extern void unlock(Lock*); 309 extern int canlock(Lock*); 310 311 typedef struct QLock QLock; 312 struct QLock 313 { 314 Lock use; /* to access Qlock structure */ 315 Proc *head; /* next process waiting for object */ 316 Proc *tail; /* last process waiting for object */ 317 int locked; /* flag */ 318 }; 319 320 extern void qlock(QLock*); 321 extern void qunlock(QLock*); 322 extern int canqlock(QLock*); 323 extern void _qlockinit(ulong (*)(ulong, ulong)); /* called only by the thread library */ 324 325 typedef 326 struct RWLock 327 { 328 Lock l; /* Lock modify lock */ 329 QLock x; /* Mutual exclusion lock */ 330 QLock k; /* Lock for waiting writers */ 331 int readers; /* Count of readers in lock */ 332 } RWLock; 333 334 extern int canrlock(RWLock*); 335 extern int canwlock(RWLock*); 336 extern void rlock(RWLock*); 337 extern void runlock(RWLock*); 338 extern void wlock(RWLock*); 339 extern void wunlock(RWLock*); 340 341 /* 342 * network dialing 343 */ 344 #define NETPATHLEN 40 345 346 /* 347 * system calls 348 * 349 */ 350 #define STATMAX 65535U /* max length of machine-independent stat structure */ 351 #define DIRMAX (sizeof(Dir)+STATMAX) /* max length of Dir structure */ 352 #define ERRMAX 128 /* max length of error string */ 353 354 #define MORDER 0x0003 /* mask for bits defining order of mounting */ 355 #define MREPL 0x0000 /* mount replaces object */ 356 #define MBEFORE 0x0001 /* mount goes before others in union directory */ 357 #define MAFTER 0x0002 /* mount goes after others in union directory */ 358 #define MCREATE 0x0004 /* permit creation in mounted directory */ 359 #define MCACHE 0x0010 /* cache some data */ 360 #define MMASK 0x0017 /* all bits on */ 361 362 #define OREAD 0 /* open for read */ 363 #define OWRITE 1 /* write */ 364 #define ORDWR 2 /* read and write */ 365 #define OEXEC 3 /* execute, == read but check execute permission */ 366 #define OTRUNC 16 /* or'ed in (except for exec), truncate file first */ 367 #define OCEXEC 32 /* or'ed in, close on exec */ 368 #define ORCLOSE 64 /* or'ed in, remove on close */ 369 #define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */ 370 371 #define AEXIST 0 /* accessible: exists */ 372 #define AEXEC 1 /* execute access */ 373 #define AWRITE 2 /* write access */ 374 #define AREAD 4 /* read access */ 375 376 /* bits in Qid.type */ 377 #define QTDIR 0x80 /* type bit for directories */ 378 #define QTAPPEND 0x40 /* type bit for append only files */ 379 #define QTEXCL 0x20 /* type bit for exclusive use files */ 380 #define QTMOUNT 0x10 /* type bit for mounted channel */ 381 #define QTAUTH 0x08 /* type bit for authentication file */ 382 #define QTFILE 0x00 /* plain file */ 383 384 /* bits in Dir.mode */ 385 #define DMDIR 0x80000000 /* mode bit for directories */ 386 #define DMAPPEND 0x40000000 /* mode bit for append only files */ 387 #define DMEXCL 0x20000000 /* mode bit for exclusive use files */ 388 #define DMMOUNT 0x10000000 /* mode bit for mounted channel */ 389 #define DMAUTH 0x08000000 /* mode bit for authentication file */ 390 #define DMREAD 0x4 /* mode bit for read permission */ 391 #define DMWRITE 0x2 /* mode bit for write permission */ 392 #define DMEXEC 0x1 /* mode bit for execute permission */ 393 394 typedef 395 struct Qid 396 { 397 uvlong path; 398 ulong vers; 399 uchar type; 400 } Qid; 401 402 typedef 403 struct Dir { 404 /* system-modified data */ 405 ushort type; /* server type */ 406 uint dev; /* server subtype */ 407 /* file data */ 408 Qid qid; /* unique id from server */ 409 ulong mode; /* permissions */ 410 ulong atime; /* last read time */ 411 ulong mtime; /* last write time */ 412 vlong length; /* file length */ 413 char *name; /* last element of path */ 414 char *uid; /* owner name */ 415 char *gid; /* group name */ 416 char *muid; /* last modifier name */ 417 } Dir; 418 419 extern Dir* dirstat(char*); 420 extern Dir* dirfstat(int); 421 extern int dirwstat(char*, Dir*); 422 extern int dirfwstat(int, Dir*); 423 extern long dirread(int, Dir**); 424 extern void nulldir(Dir*); 425 extern long dirreadall(int, Dir**); 426 427 typedef 428 struct Waitmsg 429 { 430 int pid; /* of loved one */ 431 ulong time[3]; /* of loved one & descendants */ 432 char *msg; 433 } Waitmsg; 434 435 extern void _exits(char*); 436 437 extern void exits(char*); 438 extern int create(char*, int, int); 439 extern int errstr(char*, uint); 440 441 extern void perror(const char*); 442 extern long readn(int, void*, long); 443 extern int remove(const char*); 444 extern void rerrstr(char*, uint); 445 extern vlong seek(int, vlong, int); 446 extern int segflush(void*, ulong); 447 extern void werrstr(char*, ...); 448 449 extern char *argv0; 450 #define ARGBEGIN for((argv0||(argv0=*argv)),argv++,argc--;\ 451 argv[0] && argv[0][0]=='-' && argv[0][1];\ 452 argc--, argv++) {\ 453 char *_args, *_argt;\ 454 Rune _argc;\ 455 _args = &argv[0][1];\ 456 if(_args[0]=='-' && _args[1]==0){\ 457 argc--; argv++; break;\ 458 }\ 459 _argc = 0;\ 460 while(*_args && (_args += chartorune(&_argc, _args)))\ 461 switch(_argc) 462 #define ARGEND SET(_argt);USED(_argt);USED(_argc); USED(_args);}USED(argv); USED(argc); 463 #define ARGF() (_argt=_args, _args="",\ 464 (*_argt? _argt: argv[1]? (argc--, *++argv): 0)) 465 #define EARGF(x) (_argt=_args, _args="",\ 466 (*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0))) 467 468 #define ARGC() _argc 469 470 /* 471 * Extensions for Inferno to basic libc.h 472 */ 473 474 #define setbinmode() 475 476