1 #define _POSIX_SOURCE 2 #define _POSIX_C_SOURCE 1 3 #define _LARGEFILE64_SOURCE 1 4 #define _FILE_OFFSET_BITS 64 5 #include <sys/types.h> 6 #include <stdlib.h> 7 #include <stdarg.h> 8 #define __EXTENSIONS__ 9 #include <unistd.h> 10 #undef __EXTENSIONS__ 11 #include <errno.h> 12 #include <string.h> 13 #include "math.h" 14 #include <fcntl.h> 15 #include <setjmp.h> 16 #include <float.h> 17 #include <time.h> 18 19 #define getwd infgetwd 20 21 #ifndef EMU 22 typedef struct Proc Proc; 23 #endif 24 25 #define nil ((void*)0) 26 27 typedef unsigned char uchar; 28 typedef unsigned int uint; 29 typedef unsigned long ulong; 30 typedef signed char schar; 31 typedef unsigned short ushort; 32 typedef unsigned short Rune; 33 typedef long long int vlong; 34 typedef unsigned long long int uvlong; 35 typedef unsigned int u32int; 36 typedef uvlong u64int; 37 38 typedef unsigned int mpdigit; /* for /sys/include/mp.h */ 39 typedef unsigned short u16int; 40 typedef unsigned char u8int; 41 typedef unsigned long uintptr; 42 43 typedef signed char int8; 44 typedef unsigned char uint8; 45 typedef short int16; 46 typedef unsigned short uint16; 47 typedef int int32; 48 typedef unsigned int uint32; 49 typedef long long int64; 50 typedef unsigned long long uint64; 51 52 #define USED(x) if(x){}else{} 53 #define SET(x) 54 55 #undef nelem 56 #define nelem(x) (sizeof(x)/sizeof((x)[0])) 57 #undef offsetof 58 #define offsetof(s, m) (ulong)(&(((s*)0)->m)) 59 #undef assert 60 #define assert(x) if(x){}else _assert("x") 61 62 /* 63 * most mem and string routines are declared by ANSI/POSIX files above 64 */ 65 66 extern char* strecpy(char*, char*, char*); 67 extern char* strdup(const char*); 68 extern int cistrncmp(char*, char*, int); 69 extern int cistrcmp(char*, char*); 70 extern char* cistrstr(char*, char*); 71 extern int tokenize(char*, char**, int); 72 73 enum 74 { 75 UTFmax = 3, /* maximum bytes per rune */ 76 Runesync = 0x80, /* cannot represent part of a UTF sequence (<) */ 77 Runeself = 0x80, /* rune and UTF sequences are the same (<) */ 78 Runeerror = 0x80 /* decoding error in UTF */ 79 }; 80 81 /* 82 * rune routines 83 */ 84 extern int runetochar(char*, Rune*); 85 extern int chartorune(Rune*, char*); 86 extern int runelen(long); 87 extern int runenlen(Rune*, int); 88 extern int fullrune(char*, int); 89 extern int utflen(char*); 90 extern int utfnlen(char*, long); 91 extern char* utfrune(char*, long); 92 extern char* utfrrune(char*, long); 93 extern char* utfutf(char*, char*); 94 extern char* utfecpy(char*, char*, char*); 95 96 extern Rune* runestrcat(Rune*, Rune*); 97 extern Rune* runestrchr(Rune*, Rune); 98 extern int runestrcmp(Rune*, Rune*); 99 extern Rune* runestrcpy(Rune*, Rune*); 100 extern Rune* runestrncpy(Rune*, Rune*, long); 101 extern Rune* runestrecpy(Rune*, Rune*, Rune*); 102 extern Rune* runestrdup(Rune*); 103 extern Rune* runestrncat(Rune*, Rune*, long); 104 extern int runestrncmp(Rune*, Rune*, long); 105 extern Rune* runestrrchr(Rune*, Rune); 106 extern long runestrlen(Rune*); 107 extern Rune* runestrstr(Rune*, Rune*); 108 109 extern Rune tolowerrune(Rune); 110 extern Rune totitlerune(Rune); 111 extern Rune toupperrune(Rune); 112 extern int isalpharune(Rune); 113 extern int islowerrune(Rune); 114 extern int isspacerune(Rune); 115 extern int istitlerune(Rune); 116 extern int isupperrune(Rune); 117 118 /* 119 * malloc 120 */ 121 extern void* malloc(size_t); 122 extern void* mallocz(ulong, int); 123 extern void free(void*); 124 extern ulong msize(void*); 125 extern void* calloc(size_t, size_t); 126 extern void* realloc(void*, size_t); 127 extern void setmalloctag(void*, ulong); 128 extern void setrealloctag(void*, ulong); 129 extern ulong getmalloctag(void*); 130 extern ulong getrealloctag(void*); 131 extern void* malloctopoolblock(void*); 132 133 /* 134 * print routines 135 */ 136 typedef struct Fmt Fmt; 137 struct Fmt{ 138 uchar runes; /* output buffer is runes or chars? */ 139 void *start; /* of buffer */ 140 void *to; /* current place in the buffer */ 141 void *stop; /* end of the buffer; overwritten if flush fails */ 142 int (*flush)(Fmt *); /* called when to == stop */ 143 void *farg; /* to make flush a closure */ 144 int nfmt; /* num chars formatted so far */ 145 va_list args; /* args passed to dofmt */ 146 int r; /* % format Rune */ 147 int width; 148 int prec; 149 ulong flags; 150 }; 151 152 enum{ 153 FmtWidth = 1, 154 FmtLeft = FmtWidth << 1, 155 FmtPrec = FmtLeft << 1, 156 FmtSharp = FmtPrec << 1, 157 FmtSpace = FmtSharp << 1, 158 FmtSign = FmtSpace << 1, 159 FmtZero = FmtSign << 1, 160 FmtUnsigned = FmtZero << 1, 161 FmtShort = FmtUnsigned << 1, 162 FmtLong = FmtShort << 1, 163 FmtVLong = FmtLong << 1, 164 FmtComma = FmtVLong << 1, 165 FmtByte = FmtComma << 1, 166 167 FmtFlag = FmtByte << 1 168 }; 169 170 extern int print(char*, ...); 171 extern char* seprint(char*, char*, char*, ...); 172 extern char* vseprint(char*, char*, char*, va_list); 173 extern int snprint(char*, int, char*, ...); 174 extern int vsnprint(char*, int, char*, va_list); 175 extern char* smprint(char*, ...); 176 extern char* vsmprint(char*, va_list); 177 extern int sprint(char*, char*, ...); 178 extern int fprint(int, char*, ...); 179 extern int vfprint(int, char*, va_list); 180 181 extern int runesprint(Rune*, char*, ...); 182 extern int runesnprint(Rune*, int, char*, ...); 183 extern int runevsnprint(Rune*, int, char*, va_list); 184 extern Rune* runeseprint(Rune*, Rune*, char*, ...); 185 extern Rune* runevseprint(Rune*, Rune*, char*, va_list); 186 extern Rune* runesmprint(char*, ...); 187 extern Rune* runevsmprint(char*, va_list); 188 189 extern int fmtfdinit(Fmt*, int, char*, int); 190 extern int fmtfdflush(Fmt*); 191 extern int fmtstrinit(Fmt*); 192 extern char* fmtstrflush(Fmt*); 193 extern int runefmtstrinit(Fmt*); 194 extern Rune* runefmtstrflush(Fmt*); 195 196 extern int fmtinstall(int, int (*)(Fmt*)); 197 extern int dofmt(Fmt*, char*); 198 extern int dorfmt(Fmt*, Rune*); 199 extern int fmtprint(Fmt*, char*, ...); 200 extern int fmtvprint(Fmt*, char*, va_list); 201 extern int fmtrune(Fmt*, int); 202 extern int fmtstrcpy(Fmt*, char*); 203 extern int fmtrunestrcpy(Fmt*, Rune*); 204 /* 205 * error string for %r 206 * supplied on per os basis, not part of fmt library 207 */ 208 extern int errfmt(Fmt *f); 209 210 /* 211 * quoted strings 212 */ 213 extern char *unquotestrdup(char*); 214 extern Rune *unquoterunestrdup(Rune*); 215 extern char *quotestrdup(char*); 216 extern Rune *quoterunestrdup(Rune*); 217 extern int quotestrfmt(Fmt*); 218 extern int quoterunestrfmt(Fmt*); 219 extern void quotefmtinstall(void); 220 extern int (*doquote)(int); 221 222 /* 223 * random number 224 */ 225 extern int nrand(int); 226 227 /* 228 * random number 229 */ 230 extern ulong truerand(void); 231 extern ulong ntruerand(ulong); 232 233 /* 234 * math 235 */ 236 extern int isNaN(double); 237 extern int isInf(double, int); 238 extern double pow(double, double); 239 240 /* 241 * Time-of-day 242 */ 243 244 typedef struct Tm Tm; 245 struct Tm { 246 int sec; 247 int min; 248 int hour; 249 int mday; 250 int mon; 251 int year; 252 int wday; 253 int yday; 254 char zone[4]; 255 int tzoff; 256 }; 257 extern vlong osnsec(void); 258 #define nsec osnsec 259 260 /* 261 * one-of-a-kind 262 */ 263 extern void _assert(char*); 264 extern double charstod(int(*)(void*), void*); 265 extern char* cleanname(char*); 266 extern double frexp(double, int*); 267 extern uintptr getcallerpc(void*); 268 extern int getfields(char*, char**, int, int, char*); 269 extern char* getuser(void); 270 extern char* getwd(char*, int); 271 extern double ipow10(int); 272 extern double ldexp(double, int); 273 extern double modf(double, double*); 274 #define pow10 infpow10 275 extern double pow10(int); 276 extern vlong strtoll(const char*, char**, int); 277 #define qsort infqsort 278 extern void qsort(void*, long, long, int (*)(void*, void*)); 279 extern uvlong strtoull(const char*, char**, 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 void perror(const char*); 435 extern long readn(int, void*, long); 436 extern int remove(const char*); 437 extern void rerrstr(char*, uint); 438 extern vlong seek(int, vlong, int); 439 extern int segflush(void*, ulong); 440 extern void werrstr(char*, ...); 441 442 extern char *argv0; 443 #define ARGBEGIN for((argv0||(argv0=*argv)),argv++,argc--;\ 444 argv[0] && argv[0][0]=='-' && argv[0][1];\ 445 argc--, argv++) {\ 446 char *_args, *_argt;\ 447 Rune _argc;\ 448 _args = &argv[0][1];\ 449 if(_args[0]=='-' && _args[1]==0){\ 450 argc--; argv++; break;\ 451 }\ 452 _argc = 0;\ 453 while(*_args && (_args += chartorune(&_argc, _args)))\ 454 switch(_argc) 455 #define ARGEND SET(_argt);USED(_argt);USED(_argc); USED(_args);}USED(argv); USED(argc); 456 #define ARGF() (_argt=_args, _args="",\ 457 (*_argt? _argt: argv[1]? (argc--, *++argv): 0)) 458 #define EARGF(x) (_argt=_args, _args="",\ 459 (*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0))) 460 461 #define ARGC() _argc 462 463 /* 464 * Extensions for Inferno to basic libc.h 465 */ 466 467 #define setbinmode() 468 469