2 #pragma src "/sys/src/libc"
4 #define nelem(x) (sizeof(x)/sizeof((x)[0]))
5 #define offsetof(s, m) (ulong)(&(((s*)0)->m))
6 #define assert(x) if(x){}else _assert("x")
11 extern void* memccpy(void*, void*, int, ulong);
12 extern void* memset(void*, int, ulong);
13 extern int memcmp(void*, void*, ulong);
14 extern void* memcpy(void*, void*, ulong);
15 extern void* memmove(void*, void*, ulong);
16 extern void* memchr(void*, int, ulong);
21 extern char* strcat(char*, char*);
22 extern char* strchr(char*, int);
23 extern int strcmp(char*, char*);
24 extern char* strcpy(char*, char*);
25 extern char* strecpy(char*, char*, char*);
26 extern char* strdup(char*);
27 extern char* strncat(char*, char*, long);
28 extern char* strncpy(char*, char*, long);
29 extern int strncmp(char*, char*, long);
30 extern char* strpbrk(char*, char*);
31 extern char* strrchr(char*, int);
32 extern char* strtok(char*, char*);
33 extern long strlen(char*);
34 extern long strspn(char*, char*);
35 extern long strcspn(char*, char*);
36 extern char* strstr(char*, char*);
37 extern int cistrncmp(char*, char*, int);
38 extern int cistrcmp(char*, char*);
39 extern char* cistrstr(char*, char*);
40 extern int tokenize(char*, char**, int);
44 UTFmax = 3, /* maximum bytes per rune */
45 Runesync = 0x80, /* cannot represent part of a UTF sequence (<) */
46 Runeself = 0x80, /* rune and UTF sequences are the same (<) */
47 Runeerror = 0xFFFD, /* decoding error in UTF */
53 extern int runetochar(char*, Rune*);
54 extern int chartorune(Rune*, char*);
55 extern int runelen(long);
56 extern int runenlen(Rune*, int);
57 extern int fullrune(char*, int);
58 extern int utflen(char*);
59 extern int utfnlen(char*, long);
60 extern char* utfrune(char*, long);
61 extern char* utfrrune(char*, long);
62 extern char* utfutf(char*, char*);
63 extern char* utfecpy(char*, char*, char*);
65 extern Rune* runestrcat(Rune*, Rune*);
66 extern Rune* runestrchr(Rune*, Rune);
67 extern int runestrcmp(Rune*, Rune*);
68 extern Rune* runestrcpy(Rune*, Rune*);
69 extern Rune* runestrncpy(Rune*, Rune*, long);
70 extern Rune* runestrecpy(Rune*, Rune*, Rune*);
71 extern Rune* runestrdup(Rune*);
72 extern Rune* runestrncat(Rune*, Rune*, long);
73 extern int runestrncmp(Rune*, Rune*, long);
74 extern Rune* runestrrchr(Rune*, Rune);
75 extern long runestrlen(Rune*);
76 extern Rune* runestrstr(Rune*, Rune*);
78 extern Rune tolowerrune(Rune);
79 extern Rune totitlerune(Rune);
80 extern Rune toupperrune(Rune);
81 extern int isalpharune(Rune);
82 extern int islowerrune(Rune);
83 extern int isspacerune(Rune);
84 extern int istitlerune(Rune);
85 extern int isupperrune(Rune);
86 extern int isdigitrune(Rune);
91 extern void* malloc(ulong);
92 extern void* mallocz(ulong, int);
93 extern void free(void*);
94 extern ulong msize(void*);
95 extern void* mallocalign(ulong, ulong, long, ulong);
96 extern void* calloc(ulong, ulong);
97 extern void* realloc(void*, ulong);
98 extern void setmalloctag(void*, ulong);
99 extern void setrealloctag(void*, ulong);
100 extern ulong getmalloctag(void*);
101 extern ulong getrealloctag(void*);
102 extern void* malloctopoolblock(void*);
107 typedef struct Fmt Fmt;
109 uchar runes; /* output buffer is runes or chars? */
110 void *start; /* of buffer */
111 void *to; /* current place in the buffer */
112 void *stop; /* end of the buffer; overwritten if flush fails */
113 int (*flush)(Fmt *); /* called when to == stop */
114 void *farg; /* to make flush a closure */
115 int nfmt; /* num chars formatted so far */
116 va_list args; /* args passed to dofmt */
117 int r; /* % format Rune */
125 FmtLeft = FmtWidth << 1,
126 FmtPrec = FmtLeft << 1,
127 FmtSharp = FmtPrec << 1,
128 FmtSpace = FmtSharp << 1,
129 FmtSign = FmtSpace << 1,
130 FmtZero = FmtSign << 1,
131 FmtUnsigned = FmtZero << 1,
132 FmtShort = FmtUnsigned << 1,
133 FmtLong = FmtShort << 1,
134 FmtVLong = FmtLong << 1,
135 FmtComma = FmtVLong << 1,
136 FmtByte = FmtComma << 1,
138 FmtFlag = FmtByte << 1
141 extern int print(char*, ...);
142 extern char* seprint(char*, char*, char*, ...);
143 extern char* vseprint(char*, char*, char*, va_list);
144 extern int snprint(char*, int, char*, ...);
145 extern int vsnprint(char*, int, char*, va_list);
146 extern char* smprint(char*, ...);
147 extern char* vsmprint(char*, va_list);
148 extern int sprint(char*, char*, ...);
149 extern int fprint(int, char*, ...);
150 extern int vfprint(int, char*, va_list);
152 extern int runesprint(Rune*, char*, ...);
153 extern int runesnprint(Rune*, int, char*, ...);
154 extern int runevsnprint(Rune*, int, char*, va_list);
155 extern Rune* runeseprint(Rune*, Rune*, char*, ...);
156 extern Rune* runevseprint(Rune*, Rune*, char*, va_list);
157 extern Rune* runesmprint(char*, ...);
158 extern Rune* runevsmprint(char*, va_list);
160 extern int fmtfdinit(Fmt*, int, char*, int);
161 extern int fmtfdflush(Fmt*);
162 extern int fmtstrinit(Fmt*);
163 extern char* fmtstrflush(Fmt*);
164 extern int runefmtstrinit(Fmt*);
165 extern Rune* runefmtstrflush(Fmt*);
167 #pragma varargck argpos fmtprint 2
168 #pragma varargck argpos fprint 2
169 #pragma varargck argpos print 1
170 #pragma varargck argpos runeseprint 3
171 #pragma varargck argpos runesmprint 1
172 #pragma varargck argpos runesnprint 3
173 #pragma varargck argpos runesprint 2
174 #pragma varargck argpos seprint 3
175 #pragma varargck argpos smprint 1
176 #pragma varargck argpos snprint 3
177 #pragma varargck argpos sprint 2
179 #pragma varargck type "lld" vlong
180 #pragma varargck type "llo" vlong
181 #pragma varargck type "llx" vlong
182 #pragma varargck type "llb" vlong
183 #pragma varargck type "lld" uvlong
184 #pragma varargck type "llo" uvlong
185 #pragma varargck type "llx" uvlong
186 #pragma varargck type "llb" uvlong
187 #pragma varargck type "ld" long
188 #pragma varargck type "lo" long
189 #pragma varargck type "lx" long
190 #pragma varargck type "lb" long
191 #pragma varargck type "ld" ulong
192 #pragma varargck type "lo" ulong
193 #pragma varargck type "lx" ulong
194 #pragma varargck type "lb" ulong
195 #pragma varargck type "d" int
196 #pragma varargck type "o" int
197 #pragma varargck type "x" int
198 #pragma varargck type "c" int
199 #pragma varargck type "C" int
200 #pragma varargck type "b" int
201 #pragma varargck type "d" uint
202 #pragma varargck type "x" uint
203 #pragma varargck type "c" uint
204 #pragma varargck type "C" uint
205 #pragma varargck type "b" uint
206 #pragma varargck type "f" double
207 #pragma varargck type "e" double
208 #pragma varargck type "g" double
209 #pragma varargck type "s" char*
210 #pragma varargck type "q" char*
211 #pragma varargck type "S" Rune*
212 #pragma varargck type "Q" Rune*
213 #pragma varargck type "r" void
214 #pragma varargck type "%" void
215 #pragma varargck type "n" int*
216 #pragma varargck type "p" uintptr
217 #pragma varargck type "p" void*
218 #pragma varargck flag ','
219 #pragma varargck flag ' '
220 #pragma varargck flag 'h'
221 #pragma varargck type "<" void*
222 #pragma varargck type "[" void*
223 #pragma varargck type "H" void*
224 #pragma varargck type "lH" void*
226 extern int fmtinstall(int, int (*)(Fmt*));
227 extern int dofmt(Fmt*, char*);
228 extern int dorfmt(Fmt*, Rune*);
229 extern int fmtprint(Fmt*, char*, ...);
230 extern int fmtvprint(Fmt*, char*, va_list);
231 extern int fmtrune(Fmt*, int);
232 extern int fmtstrcpy(Fmt*, char*);
233 extern int fmtrunestrcpy(Fmt*, Rune*);
235 * error string for %r
236 * supplied on per os basis, not part of fmt library
238 extern int errfmt(Fmt *f);
243 extern char *unquotestrdup(char*);
244 extern Rune *unquoterunestrdup(Rune*);
245 extern char *quotestrdup(char*);
246 extern Rune *quoterunestrdup(Rune*);
247 extern int quotestrfmt(Fmt*);
248 extern int quoterunestrfmt(Fmt*);
249 extern void quotefmtinstall(void);
250 extern int (*doquote)(int);
251 extern int needsrcquote(int);
256 extern void srand(long);
257 extern int rand(void);
258 extern int nrand(int);
259 extern long lrand(void);
260 extern long lnrand(long);
261 extern double frand(void);
262 extern ulong truerand(void); /* uses /dev/random */
263 extern ulong ntruerand(ulong); /* uses /dev/random */
268 extern ulong getfcr(void);
269 extern void setfsr(ulong);
270 extern ulong getfsr(void);
271 extern void setfcr(ulong);
272 extern double NaN(void);
273 extern double Inf(int);
274 extern int isNaN(double);
275 extern int isInf(double, int);
276 extern ulong umuldiv(ulong, ulong, ulong);
277 extern long muldiv(long, long, long);
279 extern double pow(double, double);
280 extern double atan2(double, double);
281 extern double fabs(double);
282 extern double atan(double);
283 extern double log(double);
284 extern double log10(double);
285 extern double exp(double);
286 extern double floor(double);
287 extern double ceil(double);
288 extern double hypot(double, double);
289 extern double sin(double);
290 extern double cos(double);
291 extern double tan(double);
292 extern double asin(double);
293 extern double acos(double);
294 extern double sinh(double);
295 extern double cosh(double);
296 extern double tanh(double);
297 extern double sqrt(double);
298 extern double fmod(double, double);
300 #define HUGE 3.4028234e38
301 #define PIO2 1.570796326794896619231e0
302 #define PI (PIO2+PIO2)
323 extern Tm* gmtime(long);
324 extern Tm* localtime(long);
325 extern char* asctime(Tm*);
326 extern char* ctime(long);
327 extern double cputime(void);
328 extern long times(long*);
329 extern long tm2sec(Tm*);
330 extern vlong nsec(void);
332 extern void cycles(uvlong*); /* 64-bit value of the cycle counter if there is one, 0 if there isn't */
343 extern void _assert(char*);
345 extern int atexit(void(*)(void));
346 extern void atexitdont(void(*)(void));
347 extern int atnotify(int(*)(void*, char*), int);
348 extern double atof(char*);
349 extern int atoi(char*);
350 extern long atol(char*);
351 extern vlong atoll(char*);
352 extern double charstod(int(*)(void*), void*);
353 extern char* cleanname(char*);
354 extern int decrypt(void*, void*, int);
355 extern int encrypt(void*, void*, int);
356 extern int dec64(uchar*, int, char*, int);
357 extern int enc64(char*, int, uchar*, int);
358 extern int dec32(uchar*, int, char*, int);
359 extern int enc32(char*, int, uchar*, int);
360 extern int dec16(uchar*, int, char*, int);
361 extern int enc16(char*, int, uchar*, int);
362 extern int encodefmt(Fmt*);
363 extern void exits(char*);
364 extern double frexp(double, int*);
365 extern uintptr getcallerpc(void*);
366 extern char* getenv(char*);
367 extern int getfields(char*, char**, int, int, char*);
368 extern int gettokens(char *, char **, int, char *);
369 extern char* getuser(void);
370 extern char* getwd(char*, int);
371 extern int iounit(int);
372 extern long labs(long);
373 extern double ldexp(double, int);
374 extern void longjmp(jmp_buf, int);
375 extern char* mktemp(char*);
376 extern double modf(double, double*);
377 extern int netcrypt(void*, void*);
378 extern void notejmp(void*, jmp_buf, int);
379 extern void perror(char*);
380 extern int postnote(int, int, char *);
381 extern double pow10(int);
382 extern int putenv(char*, char*);
383 extern void qsort(void*, long, long, int (*)(void*, void*));
384 extern int setjmp(jmp_buf);
385 extern double strtod(char*, char**);
386 extern long strtol(char*, char**, int);
387 extern ulong strtoul(char*, char**, int);
388 extern vlong strtoll(char*, char**, int);
389 extern uvlong strtoull(char*, char**, int);
390 extern void sysfatal(char*, ...);
391 #pragma varargck argpos sysfatal 1
392 extern void syslog(int, char*, char*, ...);
393 #pragma varargck argpos syslog 3
394 extern long time(long*);
395 extern int tolower(int);
396 extern int toupper(int);
402 Profoff, /* No profiling */
403 Profuser, /* Measure user time only (default) */
404 Profkernel, /* Measure user + kernel time */
405 Proftime, /* Measure total time */
406 Profsample, /* Use clock interrupt to sample (default when there is no cycle counter) */
408 extern void prof(void (*fn)(void*), void *arg, int entries, int what);
418 extern int _tas(int*);
420 extern void lock(Lock*);
421 extern void unlock(Lock*);
422 extern int canlock(Lock*);
424 typedef struct QLp QLp;
441 extern void qlock(QLock*);
442 extern void qunlock(QLock*);
443 extern int canqlock(QLock*);
444 extern void _qlockinit(void* (*)(void*, void*)); /* called only by the thread library */
450 int readers; /* number of readers */
451 int writer; /* number of writers */
452 QLp *head; /* list of waiting processes */
456 extern void rlock(RWLock*);
457 extern void runlock(RWLock*);
458 extern int canrlock(RWLock*);
459 extern void wlock(RWLock*);
460 extern void wunlock(RWLock*);
461 extern int canwlock(RWLock*);
471 extern void rsleep(Rendez*); /* unlocks r->l, sleeps, locks r->l again */
472 extern int rwakeup(Rendez*);
473 extern int rwakeupall(Rendez*);
474 extern void** privalloc(void);
475 extern void privfree(void**);
480 #define NETPATHLEN 40
481 extern int accept(int, char*);
482 extern int announce(char*, char*);
483 extern int dial(char*, char*, char*, int*);
484 extern void setnetmtpt(char*, int, char*);
485 extern int hangup(int);
486 extern int listen(char*, char*);
487 extern char* netmkaddr(char*, char*, char*);
488 extern int reject(int, char*, char*);
493 extern int pushssl(int, char*, char*, char*, int*);
494 extern int pushtls(int, char*, char*, int, char*, char*);
499 typedef struct NetConnInfo NetConnInfo;
502 char *dir; /* connection directory */
503 char *root; /* network root */
504 char *spec; /* binding spec */
505 char *lsys; /* local system */
506 char *lserv; /* local service */
507 char *rsys; /* remote system */
508 char *rserv; /* remote service */
509 char *laddr; /* local address */
510 char *raddr; /* remote address */
512 extern NetConnInfo* getnetconninfo(char*, int);
513 extern void freenetconninfo(NetConnInfo*);
519 #define STATMAX 65535U /* max length of machine-independent stat structure */
520 #define DIRMAX (sizeof(Dir)+STATMAX) /* max length of Dir structure */
521 #define ERRMAX 128 /* max length of error string */
523 #define MORDER 0x0003 /* mask for bits defining order of mounting */
524 #define MREPL 0x0000 /* mount replaces object */
525 #define MBEFORE 0x0001 /* mount goes before others in union directory */
526 #define MAFTER 0x0002 /* mount goes after others in union directory */
527 #define MCREATE 0x0004 /* permit creation in mounted directory */
528 #define MCACHE 0x0010 /* cache some data */
529 #define MMASK 0x0017 /* all bits on */
531 #define OREAD 0 /* open for read */
532 #define OWRITE 1 /* write */
533 #define ORDWR 2 /* read and write */
534 #define OEXEC 3 /* execute, == read but check execute permission */
535 #define OTRUNC 16 /* or'ed in (except for exec), truncate file first */
536 #define OCEXEC 32 /* or'ed in, close on exec */
537 #define ORCLOSE 64 /* or'ed in, remove on close */
538 #define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */
540 #define AEXIST 0 /* accessible: exists */
541 #define AEXEC 1 /* execute access */
542 #define AWRITE 2 /* write access */
543 #define AREAD 4 /* read access */
546 #define SG_RONLY 0040 /* read only */
547 #define SG_CEXEC 0100 /* detach on exec */
549 #define NCONT 0 /* continue after note */
550 #define NDFLT 1 /* terminate after note */
551 #define NSAVE 2 /* clear note but hold state */
552 #define NRSTR 3 /* restore saved state */
554 /* bits in Qid.type */
555 #define QTDIR 0x80 /* type bit for directories */
556 #define QTAPPEND 0x40 /* type bit for append only files */
557 #define QTEXCL 0x20 /* type bit for exclusive use files */
558 #define QTMOUNT 0x10 /* type bit for mounted channel */
559 #define QTAUTH 0x08 /* type bit for authentication file */
560 #define QTTMP 0x04 /* type bit for not-backed-up file */
561 #define QTFILE 0x00 /* plain file */
563 /* bits in Dir.mode */
564 #define DMDIR 0x80000000 /* mode bit for directories */
565 #define DMAPPEND 0x40000000 /* mode bit for append only files */
566 #define DMEXCL 0x20000000 /* mode bit for exclusive use files */
567 #define DMMOUNT 0x10000000 /* mode bit for mounted channel */
568 #define DMAUTH 0x08000000 /* mode bit for authentication file */
569 #define DMTMP 0x04000000 /* mode bit for non-backed-up files */
570 #define DMREAD 0x4 /* mode bit for read permission */
571 #define DMWRITE 0x2 /* mode bit for write permission */
572 #define DMEXEC 0x1 /* mode bit for execute permission */
601 /* system-modified data */
602 ushort type; /* server type */
603 uint dev; /* server subtype */
605 Qid qid; /* unique id from server */
606 ulong mode; /* permissions */
607 ulong atime; /* last read time */
608 ulong mtime; /* last write time */
609 vlong length; /* file length */
610 char *name; /* last element of path */
611 char *uid; /* owner name */
612 char *gid; /* group name */
613 char *muid; /* last modifier name */
616 /* keep /sys/src/ape/lib/ap/plan9/sys9.h in sync with this -rsc */
620 int pid; /* of loved one */
621 ulong time[3]; /* of loved one & descendants */
632 extern void _exits(char*);
634 extern void abort(void);
635 extern int access(char*, int);
636 extern long alarm(ulong);
637 extern int await(char*, int);
638 extern int bind(char*, char*, int);
639 extern int brk(void*);
640 extern int chdir(char*);
641 extern int close(int);
642 extern int create(char*, int, ulong);
643 extern int dup(int, int);
644 extern int errstr(char*, uint);
645 extern int exec(char*, char*[]);
646 extern int execl(char*, ...);
647 extern int fork(void);
648 extern int rfork(int);
649 extern int fauth(int, char*);
650 extern int fstat(int, uchar*, int);
651 extern int fwstat(int, uchar*, int);
652 extern int fversion(int, int, char*, int);
653 extern int mount(int, int, char*, int, char*);
654 extern int unmount(char*, char*);
655 extern int noted(int);
656 extern int notify(void(*)(void*, char*));
657 extern int open(char*, int);
658 extern int fd2path(int, char*, int);
659 extern int pipe(int*);
660 extern long pread(int, void*, long, vlong);
661 extern long preadv(int, IOchunk*, int, vlong);
662 extern long pwrite(int, void*, long, vlong);
663 extern long pwritev(int, IOchunk*, int, vlong);
664 extern long read(int, void*, long);
665 extern long readn(int, void*, long);
666 extern long readv(int, IOchunk*, int);
667 extern int remove(char*);
668 extern void* sbrk(ulong);
669 extern long oseek(int, long, int);
670 extern vlong seek(int, vlong, int);
671 extern void* segattach(int, char*, void*, ulong);
672 extern void* segbrk(void*, void*);
673 extern int segdetach(void*);
674 extern int segflush(void*, ulong);
675 extern int segfree(void*, ulong);
676 extern int semacquire(long*, int);
677 extern long semrelease(long*, long);
678 extern int sleep(long);
679 extern int stat(char*, uchar*, int);
680 extern int tsemacquire(long*, ulong);
681 extern Waitmsg* wait(void);
682 extern int waitpid(void);
683 extern long write(int, void*, long);
684 extern long writev(int, IOchunk*, int);
685 extern int wstat(char*, uchar*, int);
686 extern void* rendezvous(void*, void*);
688 extern Dir* dirstat(char*);
689 extern Dir* dirfstat(int);
690 extern int dirwstat(char*, Dir*);
691 extern int dirfwstat(int, Dir*);
692 extern long dirread(int, Dir**);
693 extern void nulldir(Dir*);
694 extern long dirreadall(int, Dir**);
695 extern int getpid(void);
696 extern int getppid(void);
697 extern void rerrstr(char*, uint);
698 extern char* sysname(void);
699 extern void werrstr(char*, ...);
700 #pragma varargck argpos werrstr 1
702 extern long ainc(long*);
703 extern long adec(long*);
706 #define ARGBEGIN for((argv0||(argv0=*argv)),argv++,argc--;\
707 argv[0] && argv[0][0]=='-' && argv[0][1];\
709 char *_args, *_argt;\
711 _args = &argv[0][1];\
712 if(_args[0]=='-' && _args[1]==0){\
713 argc--; argv++; break;\
716 while(*_args && (_args += chartorune(&_argc, _args)))\
718 #define ARGEND SET(_argt);USED(_argt,_argc,_args);}USED(argv, argc);
719 #define ARGF() (_argt=_args, _args="",\
720 (*_argt? _argt: argv[1]? (argc--, *++argv): 0))
721 #define EARGF(x) (_argt=_args, _args="",\
722 (*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0)))
726 /* this is used by sbrk and brk, it's a really bad idea to redefine it */