1 #define _POSIX_SOURCE 2 #include <stdlib.h> 3 #include <stdarg.h> 4 #include <errno.h> 5 #include <string.h> 6 #include "math.h" 7 #include <fcntl.h> 8 #include <setjmp.h> 9 #include <float.h> 10 #include <time.h> 11 #include <process.h> 12 #include <io.h> 13 #include <direct.h> 14 15 #define getwd infgetwd 16 17 #ifndef EMU 18 typedef struct Proc Proc; 19 #endif 20 21 /* 22 * math module dtoa 23 */ 24 #define __LITTLE_ENDIAN 25 26 /* there must be a Win32 header macro for endian-ness!!! */ 27 28 /* 29 * disable various silly warnings 30 * 4018 signed/unsigned comparison 31 * 4245 signed/unsigned conversion 32 * 4244 long to char conversion 33 * 4068 unknown pragma 34 * 4090 different volatile quals 35 * 4554 operator precedence 36 * 4146 unary - on unsigned type 37 * 4996 `deprecated' functions: they often suggest non-portable replacements 38 */ 39 #pragma warning( disable : 4305 4244 4102 4761 4018 4245 4244 4068 4090 4554 4146 4996) 40 41 #define nil ((void*)0) 42 43 typedef unsigned char uchar; 44 typedef unsigned int uint; 45 typedef unsigned long ulong; 46 typedef signed char schar; 47 typedef unsigned short ushort; 48 typedef unsigned short Rune; 49 typedef __int64 vlong; 50 typedef unsigned __int64 uvlong; 51 typedef unsigned int u32int; 52 typedef uvlong u64int; 53 54 typedef unsigned int mpdigit; /* for /sys/include/mp.h */ 55 typedef unsigned short u16int; 56 typedef unsigned char u8int; 57 typedef unsigned long uintptr; 58 59 #define USED(x) if(x){}else{} 60 #define SET(x) 61 62 #undef nelem 63 #define nelem(x) (sizeof(x)/sizeof((x)[0])) 64 #undef offsetof 65 #define offsetof(s, m) (ulong)(&(((s*)0)->m)) 66 #undef assert 67 #define assert(x) if(x){}else _assert("x") 68 69 /* 70 * most mem and string routines are declared by ANSI/POSIX files above 71 */ 72 73 extern char* strecpy(char*, char*, char*); 74 extern char* strdup(const char*); 75 extern int cistrncmp(char*, char*, int); 76 extern int cistrcmp(char*, char*); 77 extern char* cistrstr(char*, char*); 78 extern int tokenize(char*, char**, int); 79 extern vlong strtoll(const char*, char**, int); 80 extern uvlong strtoull(const char*, char**, int); 81 82 enum 83 { 84 UTFmax = 3, /* 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 = 0x80 /* decoding error in UTF */ 88 }; 89 90 /* 91 * rune routines 92 */ 93 extern int runetochar(char*, Rune*); 94 extern int chartorune(Rune*, char*); 95 extern int runelen(long); 96 extern int runenlen(Rune*, int); 97 extern int fullrune(char*, int); 98 extern int utflen(char*); 99 extern int utfnlen(char*, long); 100 extern char* utfrune(char*, long); 101 extern char* utfrrune(char*, long); 102 extern char* utfutf(char*, char*); 103 extern char* utfecpy(char*, char*, char*); 104 105 extern Rune* runestrcat(Rune*, Rune*); 106 extern Rune* runestrchr(Rune*, Rune); 107 extern int runestrcmp(Rune*, Rune*); 108 extern Rune* runestrcpy(Rune*, Rune*); 109 extern Rune* runestrncpy(Rune*, Rune*, long); 110 extern Rune* runestrecpy(Rune*, Rune*, Rune*); 111 extern Rune* runestrdup(Rune*); 112 extern Rune* runestrncat(Rune*, Rune*, long); 113 extern int runestrncmp(Rune*, Rune*, long); 114 extern Rune* runestrrchr(Rune*, Rune); 115 extern long runestrlen(Rune*); 116 extern Rune* runestrstr(Rune*, Rune*); 117 118 extern Rune tolowerrune(Rune); 119 extern Rune totitlerune(Rune); 120 extern Rune toupperrune(Rune); 121 extern int isalpharune(Rune); 122 extern int islowerrune(Rune); 123 extern int isspacerune(Rune); 124 extern int istitlerune(Rune); 125 extern int isupperrune(Rune); 126 127 /* 128 * malloc 129 */ 130 extern void* malloc(size_t); 131 extern void* mallocz(ulong, int); 132 extern void free(void*); 133 extern ulong msize(void*); 134 extern void* calloc(size_t, size_t); 135 extern void* realloc(void*, size_t); 136 extern void setmalloctag(void*, ulong); 137 extern void setrealloctag(void*, ulong); 138 extern ulong getmalloctag(void*); 139 extern ulong getrealloctag(void*); 140 extern void* malloctopoolblock(void*); 141 142 /* 143 * print routines 144 */ 145 typedef struct Fmt Fmt; 146 struct Fmt{ 147 uchar runes; /* output buffer is runes or chars? */ 148 void *start; /* of buffer */ 149 void *to; /* current place in the buffer */ 150 void *stop; /* end of the buffer; overwritten if flush fails */ 151 int (*flush)(Fmt *); /* called when to == stop */ 152 void *farg; /* to make flush a closure */ 153 int nfmt; /* num chars formatted so far */ 154 va_list args; /* args passed to dofmt */ 155 int r; /* % format Rune */ 156 int width; 157 int prec; 158 ulong flags; 159 }; 160 161 enum{ 162 FmtWidth = 1, 163 FmtLeft = FmtWidth << 1, 164 FmtPrec = FmtLeft << 1, 165 FmtSharp = FmtPrec << 1, 166 FmtSpace = FmtSharp << 1, 167 FmtSign = FmtSpace << 1, 168 FmtZero = FmtSign << 1, 169 FmtUnsigned = FmtZero << 1, 170 FmtShort = FmtUnsigned << 1, 171 FmtLong = FmtShort << 1, 172 FmtVLong = FmtLong << 1, 173 FmtComma = FmtVLong << 1, 174 FmtByte = FmtComma << 1, 175 176 FmtFlag = FmtByte << 1 177 }; 178 179 extern int print(char*, ...); 180 extern char* seprint(char*, char*, char*, ...); 181 extern char* vseprint(char*, char*, char*, va_list); 182 extern int snprint(char*, int, char*, ...); 183 extern int vsnprint(char*, int, char*, va_list); 184 extern char* smprint(char*, ...); 185 extern char* vsmprint(char*, va_list); 186 extern int sprint(char*, char*, ...); 187 extern int fprint(int, char*, ...); 188 extern int vfprint(int, char*, va_list); 189 190 extern int runesprint(Rune*, char*, ...); 191 extern int runesnprint(Rune*, int, char*, ...); 192 extern int runevsnprint(Rune*, int, char*, va_list); 193 extern Rune* runeseprint(Rune*, Rune*, char*, ...); 194 extern Rune* runevseprint(Rune*, Rune*, char*, va_list); 195 extern Rune* runesmprint(char*, ...); 196 extern Rune* runevsmprint(char*, va_list); 197 198 extern int fmtfdinit(Fmt*, int, char*, int); 199 extern int fmtfdflush(Fmt*); 200 extern int fmtstrinit(Fmt*); 201 extern char* fmtstrflush(Fmt*); 202 extern int runefmtstrinit(Fmt*); 203 extern Rune* runefmtstrflush(Fmt*); 204 205 extern int fmtinstall(int, int (*)(Fmt*)); 206 extern int dofmt(Fmt*, char*); 207 extern int dorfmt(Fmt*, Rune*); 208 extern int fmtprint(Fmt*, char*, ...); 209 extern int fmtvprint(Fmt*, char*, va_list); 210 extern int fmtrune(Fmt*, int); 211 extern int fmtstrcpy(Fmt*, char*); 212 extern int fmtrunestrcpy(Fmt*, Rune*); 213 /* 214 * error string for %r 215 * supplied on per os basis, not part of fmt library 216 */ 217 extern int errfmt(Fmt *f); 218 219 /* 220 * quoted strings 221 */ 222 extern char *unquotestrdup(char*); 223 extern Rune *unquoterunestrdup(Rune*); 224 extern char *quotestrdup(char*); 225 extern Rune *quoterunestrdup(Rune*); 226 extern int quotestrfmt(Fmt*); 227 extern int quoterunestrfmt(Fmt*); 228 extern void quotefmtinstall(void); 229 extern int (*doquote)(int); 230 231 /* 232 * random number 233 */ 234 extern ulong truerand(void); 235 extern ulong ntruerand(ulong); 236 237 /* 238 * math 239 */ 240 extern int isNaN(double); 241 extern int isInf(double, int); 242 243 #define PIO2 1.570796326794896619231e0 244 #define PI (PIO2+PIO2) 245 246 /* 247 * Time-of-day 248 */ 249 250 typedef struct Tm Tm; 251 struct Tm { 252 int sec; 253 int min; 254 int hour; 255 int mday; 256 int mon; 257 int year; 258 int wday; 259 int yday; 260 char zone[4]; 261 int tzoff; 262 }; 263 extern vlong osnsec(void); 264 #define nsec osnsec 265 266 /* 267 * one-of-a-kind 268 */ 269 extern void _assert(char*); 270 extern double charstod(int(*)(void*), void*); 271 extern char* cleanname(char*); 272 extern ulong getcallerpc(void*); 273 extern int getfields(char*, char**, int, int, char*); 274 extern char* getuser(void); 275 extern char* getuser(void); 276 extern char* getwd(char*, int); 277 extern char* getwd(char*, int); 278 extern double ipow10(int); 279 extern double pow10(int); 280 extern void sysfatal(char*, ...); 281 extern int dec64(uchar*, int, char*, int); 282 extern int enc64(char*, int, uchar*, int); 283 extern int dec32(uchar*, int, char*, int); 284 extern int enc32(char*, int, uchar*, int); 285 extern int dec16(uchar*, int, char*, int); 286 extern int enc16(char*, int, uchar*, int); 287 extern int encodefmt(Fmt*); 288 289 /* 290 * synchronization 291 */ 292 typedef 293 struct Lock { 294 int val; 295 int pid; 296 } Lock; 297 298 extern int _tas(int*); 299 300 extern void lock(Lock*); 301 extern void unlock(Lock*); 302 extern int canlock(Lock*); 303 304 typedef struct QLock QLock; 305 struct QLock 306 { 307 Lock use; /* to access Qlock structure */ 308 Proc *head; /* next process waiting for object */ 309 Proc *tail; /* last process waiting for object */ 310 int locked; /* flag */ 311 }; 312 313 extern void qlock(QLock*); 314 extern void qunlock(QLock*); 315 extern int canqlock(QLock*); 316 extern void _qlockinit(ulong (*)(ulong, ulong)); /* called only by the thread library */ 317 318 typedef 319 struct RWLock 320 { 321 Lock l; /* Lock modify lock */ 322 QLock x; /* Mutual exclusion lock */ 323 QLock k; /* Lock for waiting writers */ 324 int readers; /* Count of readers in lock */ 325 } RWLock; 326 327 extern int canrlock(RWLock*); 328 extern int canwlock(RWLock*); 329 extern void rlock(RWLock*); 330 extern void runlock(RWLock*); 331 extern void wlock(RWLock*); 332 extern void wunlock(RWLock*); 333 334 /* 335 * network dialing 336 */ 337 #define NETPATHLEN 40 338 339 /* 340 * system calls 341 * 342 */ 343 #define STATMAX 65535U /* max length of machine-independent stat structure */ 344 #define DIRMAX (sizeof(Dir)+STATMAX) /* max length of Dir structure */ 345 #define ERRMAX 128 /* max length of error string */ 346 347 #define MORDER 0x0003 /* mask for bits defining order of mounting */ 348 #define MREPL 0x0000 /* mount replaces object */ 349 #define MBEFORE 0x0001 /* mount goes before others in union directory */ 350 #define MAFTER 0x0002 /* mount goes after others in union directory */ 351 #define MCREATE 0x0004 /* permit creation in mounted directory */ 352 #define MCACHE 0x0010 /* cache some data */ 353 #define MMASK 0x0017 /* all bits on */ 354 355 #define OREAD 0 /* open for read */ 356 #define OWRITE 1 /* write */ 357 #define ORDWR 2 /* read and write */ 358 #define OEXEC 3 /* execute, == read but check execute permission */ 359 #define OTRUNC 16 /* or'ed in (except for exec), truncate file first */ 360 #define OCEXEC 32 /* or'ed in, close on exec */ 361 #define ORCLOSE 64 /* or'ed in, remove on close */ 362 #define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */ 363 364 #define AEXIST 0 /* accessible: exists */ 365 #define AEXEC 1 /* execute access */ 366 #define AWRITE 2 /* write access */ 367 #define AREAD 4 /* read access */ 368 369 /* bits in Qid.type */ 370 #define QTDIR 0x80 /* type bit for directories */ 371 #define QTAPPEND 0x40 /* type bit for append only files */ 372 #define QTEXCL 0x20 /* type bit for exclusive use files */ 373 #define QTMOUNT 0x10 /* type bit for mounted channel */ 374 #define QTAUTH 0x08 /* type bit for authentication file */ 375 #define QTFILE 0x00 /* plain file */ 376 377 /* bits in Dir.mode */ 378 #define DMDIR 0x80000000 /* mode bit for directories */ 379 #define DMAPPEND 0x40000000 /* mode bit for append only files */ 380 #define DMEXCL 0x20000000 /* mode bit for exclusive use files */ 381 #define DMMOUNT 0x10000000 /* mode bit for mounted channel */ 382 #define DMAUTH 0x08000000 /* mode bit for authentication file */ 383 #define DMREAD 0x4 /* mode bit for read permission */ 384 #define DMWRITE 0x2 /* mode bit for write permission */ 385 #define DMEXEC 0x1 /* mode bit for execute permission */ 386 387 typedef 388 struct Qid 389 { 390 uvlong path; 391 ulong vers; 392 uchar type; 393 } Qid; 394 395 typedef 396 struct Dir { 397 /* system-modified data */ 398 ushort type; /* server type */ 399 uint dev; /* server subtype */ 400 /* file data */ 401 Qid qid; /* unique id from server */ 402 ulong mode; /* permissions */ 403 ulong atime; /* last read time */ 404 ulong mtime; /* last write time */ 405 vlong length; /* file length */ 406 char *name; /* last element of path */ 407 char *uid; /* owner name */ 408 char *gid; /* group name */ 409 char *muid; /* last modifier name */ 410 } Dir; 411 412 extern Dir* dirstat(char*); 413 extern Dir* dirfstat(int); 414 extern int dirwstat(char*, Dir*); 415 extern int dirfwstat(int, Dir*); 416 extern long dirread(int, Dir**); 417 extern void nulldir(Dir*); 418 extern long dirreadall(int, Dir**); 419 420 typedef 421 struct Waitmsg 422 { 423 int pid; /* of loved one */ 424 ulong time[3]; /* of loved one & descendants */ 425 char *msg; 426 } Waitmsg; 427 428 extern void _exits(char*); 429 430 extern void exits(char*); 431 extern int create(char*, int, int); 432 extern int errstr(char*, uint); 433 434 extern long readn(int, void*, long); 435 extern void rerrstr(char*, uint); 436 extern vlong seek(int, vlong, int); 437 extern void werrstr(char*, ...); 438 439 extern char *argv0; 440 #define ARGBEGIN for((argv0||(argv0=*argv)),argv++,argc--;\ 441 argv[0] && argv[0][0]=='-' && argv[0][1];\ 442 argc--, argv++) {\ 443 char *_args, *_argt;\ 444 Rune _argc;\ 445 _args = &argv[0][1];\ 446 if(_args[0]=='-' && _args[1]==0){\ 447 argc--; argv++; break;\ 448 }\ 449 _argc = 0;\ 450 while(*_args && (_args += chartorune(&_argc, _args)))\ 451 switch(_argc) 452 #define ARGEND (_argt=0);USED(_argt);USED(_argc); USED(_args);}USED(argv); USED(argc); 453 #define ARGF() (_argt=_args, _args="",\ 454 (*_argt? _argt: argv[1]? (argc--, *++argv): 0)) 455 #define EARGF(x) (_argt=_args, _args="",\ 456 (*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0))) 457 458 #define ARGC() _argc 459 460 /* 461 * Extensions for Inferno to basic libc.h 462 */ 463 464 extern void setbinmode(void); 465 extern void* sbrk(int); 466 467