1 #define _LARGEFILE64_SOURCE 1 2 #define _FILE_OFFSET_BITS 64 3 #include <sys/types.h> 4 #include <sys/stat.h> 5 #define _POSIX_SOURCE 6 #include <stdlib.h> 7 #include <stdarg.h> 8 #include <unistd.h> 9 #include <errno.h> 10 #include <string.h> 11 #include "math.h" 12 #include <fcntl.h> 13 #include <setjmp.h> 14 #include <float.h> 15 #include <sys/bsd_types.h> 16 #include <time.h> 17 18 #define getwd infgetwd 19 20 #ifndef EMU 21 typedef struct Proc Proc; 22 #endif 23 24 #define nil ((void*)0) 25 26 typedef unsigned char uchar; 27 typedef signed char schar; 28 typedef unsigned short Rune; 29 typedef long long int vlong; 30 typedef unsigned long long int uvlong; 31 typedef unsigned int u32int; 32 typedef uvlong u64int; 33 34 typedef unsigned int mpdigit; /* for /sys/include/mp.h */ 35 typedef unsigned short u16int; 36 typedef unsigned char u8int; 37 typedef unsigned long uintptr; 38 39 #define USED(x) if(x){}else{} 40 #define SET(x) 41 42 #undef nelem 43 #define nelem(x) (sizeof(x)/sizeof((x)[0])) 44 #undef offsetof 45 #define offsetof(s, m) (ulong)(&(((s*)0)->m)) 46 #undef assert 47 #define assert(x) if(x){}else _assert("x") 48 49 /* 50 * most mem and string routines are declared by ANSI/POSIX files above 51 */ 52 53 extern char* strecpy(char*, char*, char*); 54 extern char* strdup(const char*); 55 extern int cistrncmp(char*, char*, int); 56 extern int cistrcmp(char*, char*); 57 extern char* cistrstr(char*, char*); 58 extern int tokenize(char*, char**, int); 59 60 enum 61 { 62 UTFmax = 3, /* maximum bytes per rune */ 63 Runesync = 0x80, /* cannot represent part of a UTF sequence (<) */ 64 Runeself = 0x80, /* rune and UTF sequences are the same (<) */ 65 Runeerror = 0x80 /* decoding error in UTF */ 66 }; 67 68 /* 69 * rune routines 70 */ 71 extern int runetochar(char*, Rune*); 72 extern int chartorune(Rune*, char*); 73 extern int runelen(long); 74 extern int runenlen(Rune*, int); 75 extern int fullrune(char*, int); 76 extern int utflen(char*); 77 extern int utfnlen(char*, long); 78 extern char* utfrune(char*, long); 79 extern char* utfrrune(char*, long); 80 extern char* utfutf(char*, char*); 81 extern char* utfecpy(char*, char*, char*); 82 83 extern Rune* runestrcat(Rune*, Rune*); 84 extern Rune* runestrchr(Rune*, Rune); 85 extern int runestrcmp(Rune*, Rune*); 86 extern Rune* runestrcpy(Rune*, Rune*); 87 extern Rune* runestrncpy(Rune*, Rune*, long); 88 extern Rune* runestrecpy(Rune*, Rune*, Rune*); 89 extern Rune* runestrdup(Rune*); 90 extern Rune* runestrncat(Rune*, Rune*, long); 91 extern int runestrncmp(Rune*, Rune*, long); 92 extern Rune* runestrrchr(Rune*, Rune); 93 extern long runestrlen(Rune*); 94 extern Rune* runestrstr(Rune*, Rune*); 95 96 extern Rune tolowerrune(Rune); 97 extern Rune totitlerune(Rune); 98 extern Rune toupperrune(Rune); 99 extern int isalpharune(Rune); 100 extern int islowerrune(Rune); 101 extern int isspacerune(Rune); 102 extern int istitlerune(Rune); 103 extern int isupperrune(Rune); 104 105 /* 106 * malloc 107 */ 108 extern void* malloc(size_t); 109 extern void* mallocz(ulong, int); 110 extern void free(void*); 111 extern ulong msize(void*); 112 extern void* calloc(size_t, size_t); 113 extern void* realloc(void*, size_t); 114 extern void setmalloctag(void*, ulong); 115 extern void setrealloctag(void*, ulong); 116 extern ulong getmalloctag(void*); 117 extern ulong getrealloctag(void*); 118 extern void* malloctopoolblock(void*); 119 120 /* 121 * print routines 122 */ 123 typedef struct Fmt Fmt; 124 struct Fmt{ 125 uchar runes; /* output buffer is runes or chars? */ 126 void *start; /* of buffer */ 127 void *to; /* current place in the buffer */ 128 void *stop; /* end of the buffer; overwritten if flush fails */ 129 int (*flush)(Fmt *); /* called when to == stop */ 130 void *farg; /* to make flush a closure */ 131 int nfmt; /* num chars formatted so far */ 132 va_list args; /* args passed to dofmt */ 133 int r; /* % format Rune */ 134 int width; 135 int prec; 136 ulong flags; 137 }; 138 extern vlong osnsec(void); 139 #define nsec osnsec 140 141 enum{ 142 FmtWidth = 1, 143 FmtLeft = FmtWidth << 1, 144 FmtPrec = FmtLeft << 1, 145 FmtSharp = FmtPrec << 1, 146 FmtSpace = FmtSharp << 1, 147 FmtSign = FmtSpace << 1, 148 FmtZero = FmtSign << 1, 149 FmtUnsigned = FmtZero << 1, 150 FmtShort = FmtUnsigned << 1, 151 FmtLong = FmtShort << 1, 152 FmtVLong = FmtLong << 1, 153 FmtComma = FmtVLong << 1, 154 FmtByte = FmtComma << 1, 155 156 FmtFlag = FmtByte << 1 157 }; 158 159 extern int print(char*, ...); 160 extern char* seprint(char*, char*, char*, ...); 161 extern char* vseprint(char*, char*, char*, va_list); 162 extern int snprint(char*, int, char*, ...); 163 extern int vsnprint(char*, int, char*, va_list); 164 extern char* smprint(char*, ...); 165 extern char* vsmprint(char*, va_list); 166 extern int sprint(char*, char*, ...); 167 extern int fprint(int, char*, ...); 168 extern int vfprint(int, char*, va_list); 169 170 extern int runesprint(Rune*, char*, ...); 171 extern int runesnprint(Rune*, int, char*, ...); 172 extern int runevsnprint(Rune*, int, char*, va_list); 173 extern Rune* runeseprint(Rune*, Rune*, char*, ...); 174 extern Rune* runevseprint(Rune*, Rune*, char*, va_list); 175 extern Rune* runesmprint(char*, ...); 176 extern Rune* runevsmprint(char*, va_list); 177 178 extern int fmtfdinit(Fmt*, int, char*, int); 179 extern int fmtfdflush(Fmt*); 180 extern int fmtstrinit(Fmt*); 181 extern char* fmtstrflush(Fmt*); 182 extern int runefmtstrinit(Fmt*); 183 extern Rune* runefmtstrflush(Fmt*); 184 185 extern int fmtinstall(int, int (*)(Fmt*)); 186 extern int dofmt(Fmt*, char*); 187 extern int dorfmt(Fmt*, Rune*); 188 extern int fmtprint(Fmt*, char*, ...); 189 extern int fmtvprint(Fmt*, char*, va_list); 190 extern int fmtrune(Fmt*, int); 191 extern int fmtstrcpy(Fmt*, char*); 192 extern int fmtrunestrcpy(Fmt*, Rune*); 193 /* 194 * error string for %r 195 * supplied on per os basis, not part of fmt library 196 */ 197 extern int errfmt(Fmt *f); 198 199 /* 200 * quoted strings 201 */ 202 extern char *unquotestrdup(char*); 203 extern Rune *unquoterunestrdup(Rune*); 204 extern char *quotestrdup(char*); 205 extern Rune *quoterunestrdup(Rune*); 206 extern int quotestrfmt(Fmt*); 207 extern int quoterunestrfmt(Fmt*); 208 extern void quotefmtinstall(void); 209 extern int (*doquote)(int); 210 211 /* 212 * random number 213 */ 214 extern ulong truerand(void); 215 extern ulong ntruerand(ulong); 216 217 /* 218 * math 219 */ 220 extern int isNaN(double); 221 extern int isInf(double, int); 222 223 /* 224 * Time-of-day 225 */ 226 227 typedef struct Tm Tm; 228 struct Tm { 229 int sec; 230 int min; 231 int hour; 232 int mday; 233 int mon; 234 int year; 235 int wday; 236 int yday; 237 char zone[4]; 238 int tzoff; 239 }; 240 241 /* 242 * one-of-a-kind 243 */ 244 extern void _assert(char*); 245 extern double charstod(int(*)(void*), void*); 246 extern char* cleanname(char*); 247 extern ulong getcallerpc(void*); 248 extern int getfields(char*, char**, int, int, char*); 249 extern char* getuser(void); 250 extern char* getwd(char*, int); 251 extern double ipow10(int); 252 #define pow10 infpow10 253 extern double pow10(int); 254 extern vlong strtoll(const char*, char**, int); 255 extern uvlong strtoull(const char*, char**, int); 256 extern void sysfatal(char*, ...); 257 extern int dec64(uchar*, int, char*, int); 258 extern int enc64(char*, int, uchar*, int); 259 extern int dec32(uchar*, int, char*, int); 260 extern int enc32(char*, int, uchar*, int); 261 extern int dec16(uchar*, int, char*, int); 262 extern int enc16(char*, int, uchar*, int); 263 extern int encodefmt(Fmt*); 264 265 /* 266 * synchronization 267 */ 268 typedef 269 struct Lock { 270 int val; 271 int pid; 272 } Lock; 273 274 extern int _tas(int*); 275 276 extern void lock(Lock*); 277 extern void unlock(Lock*); 278 extern int canlock(Lock*); 279 280 typedef struct QLock QLock; 281 struct QLock 282 { 283 Lock use; /* to access Qlock structure */ 284 Proc *head; /* next process waiting for object */ 285 Proc *tail; /* last process waiting for object */ 286 int locked; /* flag */ 287 }; 288 289 extern void qlock(QLock*); 290 extern void qunlock(QLock*); 291 extern int canqlock(QLock*); 292 extern void _qlockinit(ulong (*)(ulong, ulong)); /* called only by the thread library */ 293 294 typedef 295 struct RWLock 296 { 297 Lock l; /* Lock modify lock */ 298 QLock x; /* Mutual exclusion lock */ 299 QLock k; /* Lock for waiting writers */ 300 int readers; /* Count of readers in lock */ 301 } RWLock; 302 303 extern int canrlock(RWLock*); 304 extern int canwlock(RWLock*); 305 extern void rlock(RWLock*); 306 extern void runlock(RWLock*); 307 extern void wlock(RWLock*); 308 extern void wunlock(RWLock*); 309 310 /* 311 * network dialing 312 */ 313 #define NETPATHLEN 40 314 315 /* 316 * system calls 317 * 318 */ 319 #define STATMAX 65535U /* max length of machine-independent stat structure */ 320 #define DIRMAX (sizeof(Dir)+STATMAX) /* max length of Dir structure */ 321 #define ERRMAX 128 /* max length of error string */ 322 323 #define MORDER 0x0003 /* mask for bits defining order of mounting */ 324 #define MREPL 0x0000 /* mount replaces object */ 325 #define MBEFORE 0x0001 /* mount goes before others in union directory */ 326 #define MAFTER 0x0002 /* mount goes after others in union directory */ 327 #define MCREATE 0x0004 /* permit creation in mounted directory */ 328 #define MCACHE 0x0010 /* cache some data */ 329 #define MMASK 0x0017 /* all bits on */ 330 331 #define OREAD 0 /* open for read */ 332 #define OWRITE 1 /* write */ 333 #define ORDWR 2 /* read and write */ 334 #define OEXEC 3 /* execute, == read but check execute permission */ 335 #define OTRUNC 16 /* or'ed in (except for exec), truncate file first */ 336 #define OCEXEC 32 /* or'ed in, close on exec */ 337 #define ORCLOSE 64 /* or'ed in, remove on close */ 338 #define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */ 339 340 #define AEXIST 0 /* accessible: exists */ 341 #define AEXEC 1 /* execute access */ 342 #define AWRITE 2 /* write access */ 343 #define AREAD 4 /* read access */ 344 345 /* bits in Qid.type */ 346 #define QTDIR 0x80 /* type bit for directories */ 347 #define QTAPPEND 0x40 /* type bit for append only files */ 348 #define QTEXCL 0x20 /* type bit for exclusive use files */ 349 #define QTMOUNT 0x10 /* type bit for mounted channel */ 350 #define QTAUTH 0x08 /* type bit for authentication file */ 351 #define QTFILE 0x00 /* plain file */ 352 353 /* bits in Dir.mode */ 354 #define DMDIR 0x80000000 /* mode bit for directories */ 355 #define DMAPPEND 0x40000000 /* mode bit for append only files */ 356 #define DMEXCL 0x20000000 /* mode bit for exclusive use files */ 357 #define DMMOUNT 0x10000000 /* mode bit for mounted channel */ 358 #define DMAUTH 0x08000000 /* mode bit for authentication file */ 359 #define DMREAD 0x4 /* mode bit for read permission */ 360 #define DMWRITE 0x2 /* mode bit for write permission */ 361 #define DMEXEC 0x1 /* mode bit for execute permission */ 362 363 typedef 364 struct Qid 365 { 366 uvlong path; 367 ulong vers; 368 uchar type; 369 } Qid; 370 371 typedef 372 struct Dir { 373 /* system-modified data */ 374 ushort type; /* server type */ 375 uint dev; /* server subtype */ 376 /* file data */ 377 Qid qid; /* unique id from server */ 378 ulong mode; /* permissions */ 379 ulong atime; /* last read time */ 380 ulong mtime; /* last write time */ 381 vlong length; /* file length */ 382 char *name; /* last element of path */ 383 char *uid; /* owner name */ 384 char *gid; /* group name */ 385 char *muid; /* last modifier name */ 386 } Dir; 387 388 extern Dir* dirstat(char*); 389 extern Dir* dirfstat(int); 390 extern int dirwstat(char*, Dir*); 391 extern int dirfwstat(int, Dir*); 392 extern long dirread(int, Dir**); 393 extern void nulldir(Dir*); 394 extern long dirreadall(int, Dir**); 395 396 typedef 397 struct Waitmsg 398 { 399 int pid; /* of loved one */ 400 ulong time[3]; /* of loved one & descendants */ 401 char *msg; 402 } Waitmsg; 403 404 extern void _exits(char*); 405 406 extern void exits(char*); 407 extern int create(char*, int, int); 408 extern int errstr(char*, uint); 409 410 extern void perror(const char*); 411 extern long readn(int, void*, long); 412 extern int remove(const char*); 413 extern void rerrstr(char*, uint); 414 extern vlong seek(int, vlong, int); 415 extern void werrstr(char*, ...); 416 417 extern char *argv0; 418 #define ARGBEGIN for((argv0||(argv0=*argv)),argv++,argc--;\ 419 argv[0] && argv[0][0]=='-' && argv[0][1];\ 420 argc--, argv++) {\ 421 char *_args, *_argt;\ 422 Rune _argc;\ 423 _args = &argv[0][1];\ 424 if(_args[0]=='-' && _args[1]==0){\ 425 argc--; argv++; break;\ 426 }\ 427 _argc = 0;\ 428 while(*_args && (_args += chartorune(&_argc, _args)))\ 429 switch(_argc) 430 #define ARGEND SET(_argt);USED(_argt);USED(_argc); USED(_args);}USED(argv); USED(argc); 431 #define ARGF() (_argt=_args, _args="",\ 432 (*_argt? _argt: argv[1]? (argc--, *++argv): 0)) 433 #define EARGF(x) (_argt=_args, _args="",\ 434 (*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0))) 435 436 #define ARGC() _argc 437 438 /* 439 * Extensions for Inferno to basic libc.h 440 */ 441 442 #define setbinmode() 443 444 /* 445 * Extensions for emu kernel emulation 446 */ 447 #ifdef EMU 448 449 extern Proc** Xup; 450 #define up (*Xup) 451 452 typedef struct FPU FPU; 453 454 /* 455 * This structure must agree with FPsave and FPrestore asm routines 456 */ 457 struct FPU 458 { 459 ulong fcr31; 460 }; 461 462 typedef sigjmp_buf osjmpbuf; 463 #define ossetjmp(buf) sigsetjmp(buf, 1) 464 465 #endif 466