Blob


1 /*
2 * Lib9 is miscellany from the Plan 9 C library that doesn't
3 * fit into libutf or into libfmt, but is still missing from traditional
4 * Unix C libraries.
5 */
6 #ifndef _LIBC_H_
7 #define _LIBC_H_ 1
8 #if defined(__cplusplus)
9 extern "C" {
10 #endif
12 /*
13 * Begin usual libc.h
14 */
16 #define nil ((void*)0)
17 #define nelem(x) (sizeof(x)/sizeof((x)[0]))
19 #ifndef offsetof
20 #define offsetof(s, m) (ulong)(&(((s*)0)->m))
21 #endif
23 /*
24 * mem routines (provided by system <string.h>)
25 *
26 extern void* memccpy(void*, void*, int, ulong);
27 extern void* memset(void*, int, ulong);
28 extern int memcmp(void*, void*, ulong);
29 extern void* memcpy(void*, void*, ulong);
30 extern void* memmove(void*, void*, ulong);
31 extern void* memchr(void*, int, ulong);
32 */
34 /*
35 * string routines (provided by system <string.h>)
36 *
37 extern char* strcat(char*, char*);
38 extern char* strchr(char*, int);
39 extern int strcmp(char*, char*);
40 extern char* strcpy(char*, char*);
41 */
42 extern char* strecpy(char*, char*, char*);
43 extern char* p9strdup(char*);
44 /*
45 extern char* strncat(char*, char*, long);
46 extern char* strncpy(char*, char*, long);
47 extern int strncmp(char*, char*, long);
48 extern char* strpbrk(char*, char*);
49 extern char* strrchr(char*, int);
50 extern char* strtok(char*, char*);
51 extern long strlen(char*);
52 extern long strspn(char*, char*);
53 extern long strcspn(char*, char*);
54 extern char* strstr(char*, char*);
55 */
56 extern int cistrncmp(char*, char*, int);
57 extern int cistrcmp(char*, char*);
58 extern char* cistrstr(char*, char*);
59 extern int tokenize(char*, char**, int);
61 /*
62 enum
63 {
64 UTFmax = 3,
65 Runesync = 0x80,
66 Runeself = 0x80,
67 Runeerror = 0x80,
68 };
69 */
71 /*
72 * rune routines (provided by <utf.h>
73 *
74 extern int runetochar(char*, Rune*);
75 extern int chartorune(Rune*, char*);
76 extern int runelen(long);
77 extern int runenlen(Rune*, int);
78 extern int fullrune(char*, int);
79 extern int utflen(char*);
80 extern int utfnlen(char*, long);
81 extern char* utfrune(char*, long);
82 extern char* utfrrune(char*, long);
83 extern char* utfutf(char*, char*);
84 extern char* utfecpy(char*, char*, char*);
86 extern Rune* runestrcat(Rune*, Rune*);
87 extern Rune* runestrchr(Rune*, Rune);
88 extern int runestrcmp(Rune*, Rune*);
89 extern Rune* runestrcpy(Rune*, Rune*);
90 extern Rune* runestrncpy(Rune*, Rune*, long);
91 extern Rune* runestrecpy(Rune*, Rune*, Rune*);
92 extern Rune* runestrdup(Rune*);
93 extern Rune* runestrncat(Rune*, Rune*, long);
94 extern int runestrncmp(Rune*, Rune*, long);
95 extern Rune* runestrrchr(Rune*, Rune);
96 extern long runestrlen(Rune*);
97 extern Rune* runestrstr(Rune*, Rune*);
99 extern Rune tolowerrune(Rune);
100 extern Rune totitlerune(Rune);
101 extern Rune toupperrune(Rune);
102 extern int isalpharune(Rune);
103 extern int islowerrune(Rune);
104 extern int isspacerune(Rune);
105 extern int istitlerune(Rune);
106 extern int isupperrune(Rune);
107 */
109 /*
110 * malloc (provied by system <stdlib.h>)
112 extern void* malloc(ulong);
113 */
114 extern void* p9malloc(ulong);
115 extern void* mallocz(ulong, int);
116 extern void p9free(void*);
117 extern void* p9calloc(ulong, ulong);
118 extern void* p9realloc(void*, ulong);
119 extern void setmalloctag(void*, ulong);
120 extern void setrealloctag(void*, ulong);
121 extern ulong getmalloctag(void*);
122 extern ulong getrealloctag(void*);
123 /*
124 extern void* malloctopoolblock(void*);
125 */
126 #ifndef NOPLAN9DEFINES
127 #define malloc p9malloc
128 #define realloc p9realloc
129 #define calloc p9calloc
130 #define free p9free
131 #undef strdup
132 #define strdup p9strdup
133 #endif
135 /*
136 * print routines (provided by <fmt.h>)
138 typedef struct Fmt Fmt;
139 struct Fmt{
140 uchar runes;
141 void *start;
142 void *to;
143 void *stop;
144 int (*flush)(Fmt *);
145 void *farg;
146 int nfmt;
147 va_list args;
148 int r;
149 int width;
150 int prec;
151 ulong flags;
152 };
154 enum{
155 FmtWidth = 1,
156 FmtLeft = FmtWidth << 1,
157 FmtPrec = FmtLeft << 1,
158 FmtSharp = FmtPrec << 1,
159 FmtSpace = FmtSharp << 1,
160 FmtSign = FmtSpace << 1,
161 FmtZero = FmtSign << 1,
162 FmtUnsigned = FmtZero << 1,
163 FmtShort = FmtUnsigned << 1,
164 FmtLong = FmtShort << 1,
165 FmtVLong = FmtLong << 1,
166 FmtComma = FmtVLong << 1,
167 FmtByte = FmtComma << 1,
169 FmtFlag = FmtByte << 1
170 };
172 extern int print(char*, ...);
173 extern char* seprint(char*, char*, char*, ...);
174 extern char* vseprint(char*, char*, char*, va_list);
175 extern int snprint(char*, int, char*, ...);
176 extern int vsnprint(char*, int, char*, va_list);
177 extern char* smprint(char*, ...);
178 extern char* vsmprint(char*, va_list);
179 extern int sprint(char*, char*, ...);
180 extern int fprint(int, char*, ...);
181 extern int vfprint(int, char*, va_list);
183 extern int runesprint(Rune*, char*, ...);
184 extern int runesnprint(Rune*, int, char*, ...);
185 extern int runevsnprint(Rune*, int, char*, va_list);
186 extern Rune* runeseprint(Rune*, Rune*, char*, ...);
187 extern Rune* runevseprint(Rune*, Rune*, char*, va_list);
188 extern Rune* runesmprint(char*, ...);
189 extern Rune* runevsmprint(char*, va_list);
191 extern int fmtfdinit(Fmt*, int, char*, int);
192 extern int fmtfdflush(Fmt*);
193 extern int fmtstrinit(Fmt*);
194 extern char* fmtstrflush(Fmt*);
195 extern int runefmtstrinit(Fmt*);
196 extern Rune* runefmtstrflush(Fmt*);
198 extern int fmtinstall(int, int (*)(Fmt*));
199 extern int dofmt(Fmt*, char*);
200 extern int dorfmt(Fmt*, Rune*);
201 extern int fmtprint(Fmt*, char*, ...);
202 extern int fmtvprint(Fmt*, char*, va_list);
203 extern int fmtrune(Fmt*, int);
204 extern int fmtstrcpy(Fmt*, char*);
205 extern int fmtrunestrcpy(Fmt*, Rune*);
206 */
208 /*
209 * error string for %r
210 * supplied on per os basis, not part of fmt library
212 * (provided by lib9, but declared in fmt.h)
214 extern int errfmt(Fmt *f);
215 */
217 /*
218 * quoted strings
219 */
220 extern char *unquotestrdup(char*);
221 extern Rune *unquoterunestrdup(Rune*);
222 extern char *quotestrdup(char*);
223 extern Rune *quoterunestrdup(Rune*);
224 /*
225 * in fmt.h
227 extern void quotefmtinstall(void);
228 extern int quotestrfmt(Fmt*);
229 extern int quoterunestrfmt(Fmt*);
230 */
231 #ifndef NOPLAN9DEFINES
232 #define doquote fmtdoquote
233 #endif
234 extern int needsrcquote(int);
236 /*
237 * random number
238 */
239 extern void p9srand(long);
240 extern int p9rand(void);
242 extern int p9nrand(int);
243 extern long p9lrand(void);
244 extern long p9lnrand(long);
245 extern double p9frand(void);
246 extern ulong truerand(void); /* uses /dev/random */
247 extern ulong ntruerand(ulong); /* uses /dev/random */
249 #ifndef NOPLAN9DEFINES
250 #define srand p9srand
251 #define rand p9rand
252 #define nrand p9nrand
253 #define lrand p9lrand
254 #define lnrand p9lnrand
255 #define frand p9frand
256 #endif
258 /*
259 * math
260 */
261 extern ulong getfcr(void);
262 extern void setfsr(ulong);
263 extern ulong getfsr(void);
264 extern void setfcr(ulong);
265 extern double NaN(void);
266 extern double Inf(int);
267 extern int isNaN(double);
268 extern int isInf(double, int);
269 extern ulong umuldiv(ulong, ulong, ulong);
270 extern long muldiv(long, long, long);
272 /*
273 * provided by math.h
275 extern double pow(double, double);
276 extern double atan2(double, double);
277 extern double fabs(double);
278 extern double atan(double);
279 extern double log(double);
280 extern double log10(double);
281 extern double exp(double);
282 extern double floor(double);
283 extern double ceil(double);
284 extern double hypot(double, double);
285 extern double sin(double);
286 extern double cos(double);
287 extern double tan(double);
288 extern double asin(double);
289 extern double acos(double);
290 extern double sinh(double);
291 extern double cosh(double);
292 extern double tanh(double);
293 extern double sqrt(double);
294 extern double fmod(double, double);
295 #define HUGE 3.4028234e38
296 #define PIO2 1.570796326794896619231e0
297 #define PI (PIO2+PIO2)
298 */
299 #define PI M_PI
300 #define PIO2 M_PI_2
302 /*
303 * Time-of-day
304 */
306 typedef
307 struct Tm
309 int sec;
310 int min;
311 int hour;
312 int mday;
313 int mon;
314 int year;
315 int wday;
316 int yday;
317 char zone[4];
318 int tzoff;
319 } Tm;
321 extern Tm* p9gmtime(long);
322 extern Tm* p9localtime(long);
323 extern char* p9asctime(Tm*);
324 extern char* p9ctime(long);
325 extern double p9cputime(void);
326 extern long p9times(long*);
327 extern long p9tm2sec(Tm*);
328 extern vlong p9nsec(void);
330 #ifndef NOPLAN9DEFINES
331 #define gmtime p9gmtime
332 #define localtime p9localtime
333 #define asctime p9asctime
334 #define ctime p9ctime
335 #define cputime p9cputime
336 #define times p9times
337 #define tm2sec p9tm2sec
338 #define nsec p9nsec
339 #endif
341 /*
342 * one-of-a-kind
343 */
344 enum
346 PNPROC = 1,
347 PNGROUP = 2,
348 };
350 /* extern int abs(int); <stdlib.h> */
351 extern int p9atexit(void(*)(void));
352 extern void p9atexitdont(void(*)(void));
353 extern int atnotify(int(*)(void*, char*), int);
354 /*
355 * <stdlib.h>
356 extern double atof(char*); <stdlib.h>
357 */
358 extern int p9atoi(char*);
359 extern long p9atol(char*);
360 extern vlong p9atoll(char*);
361 extern double fmtcharstod(int(*)(void*), void*);
362 extern char* cleanname(char*);
363 extern int p9decrypt(void*, void*, int);
364 extern int p9encrypt(void*, void*, int);
365 extern int netcrypt(void*, void*);
366 extern int dec64(uchar*, int, char*, int);
367 extern int enc64(char*, int, uchar*, int);
368 extern int dec32(uchar*, int, char*, int);
369 extern int enc32(char*, int, uchar*, int);
370 extern int dec16(uchar*, int, char*, int);
371 extern int enc16(char*, int, uchar*, int);
372 extern int encodefmt(Fmt*);
373 extern int dirmodefmt(Fmt*);
374 extern void exits(char*);
375 extern double frexp(double, int*);
376 extern ulong getcallerpc(void*);
377 extern char* p9getenv(char*);
378 extern int p9putenv(char*, char*);
379 extern int getfields(char*, char**, int, int, char*);
380 extern int gettokens(char *, char **, int, char *);
381 extern char* getuser(void);
382 extern char* p9getwd(char*, int);
383 extern int iounit(int);
384 /* extern long labs(long); <math.h> */
385 /* extern double ldexp(double, int); <math.h> */
386 extern void p9longjmp(p9jmp_buf, int);
387 extern char* mktemp(char*);
388 extern int opentemp(char*);
389 /* extern double modf(double, double*); <math.h> */
390 extern void p9notejmp(void*, p9jmp_buf, int);
391 extern void perror(const char*);
392 extern int postnote(int, int, char *);
393 extern double p9pow10(int);
394 /* extern int putenv(char*, char*); <stdlib.h. */
395 /* extern void qsort(void*, long, long, int (*)(void*, void*)); <stdlib.h> */
396 extern char* searchpath(char*);
397 /* extern int p9setjmp(p9jmp_buf); */
398 #define p9setjmp(b) sigsetjmp((void*)(b), 1)
399 /*
400 * <stdlib.h>
401 extern long strtol(char*, char**, int);
402 extern ulong strtoul(char*, char**, int);
403 extern vlong strtoll(char*, char**, int);
404 extern uvlong strtoull(char*, char**, int);
405 */
406 extern void sysfatal(char*, ...);
407 extern void p9syslog(int, char*, char*, ...);
408 extern long p9time(long*);
409 /* extern int tolower(int); <ctype.h> */
410 /* extern int toupper(int); <ctype.h> */
411 extern void needstack(int);
412 extern char* readcons(char*, char*, int);
414 #ifndef NOPLAN9DEFINES
415 #define atexit p9atexit
416 #define atexitdont p9atexitdont
417 #define atoi p9atoi
418 #define atol p9atol
419 #define atoll p9atoll
420 #define encrypt p9encrypt
421 #define decrypt p9decrypt
422 #define getenv p9getenv
423 #define getwd p9getwd
424 #define longjmp p9longjmp
425 #undef setjmp
426 #define setjmp p9setjmp
427 #define putenv p9putenv
428 #define notejmp p9notejmp
429 #define jmp_buf p9jmp_buf
430 #define time p9time
431 #define pow10 p9pow10
432 #define strtod fmtstrtod
433 #define charstod fmtcharstod
434 #define syslog p9syslog
435 #endif
437 /*
438 * just enough information so that libc can be
439 * properly locked without dragging in all of libthread
440 */
441 typedef struct _Thread _Thread;
442 typedef struct _Threadlist _Threadlist;
443 struct _Threadlist
445 _Thread *head;
446 _Thread *tail;
447 };
449 extern _Thread *(*threadnow)(void);
451 /*
452 * synchronization
453 */
454 typedef struct Lock Lock;
455 struct Lock
457 #ifdef PLAN9PORT_USING_PTHREADS
458 int init;
459 pthread_mutex_t mutex;
460 #endif
461 int held;
462 };
464 extern void lock(Lock*);
465 extern void unlock(Lock*);
466 extern int canlock(Lock*);
467 extern int (*_lock)(Lock*, int, ulong);
468 extern void (*_unlock)(Lock*, ulong);
470 typedef struct QLock QLock;
471 struct QLock
473 Lock l;
474 _Thread *owner;
475 _Threadlist waiting;
476 };
478 extern void qlock(QLock*);
479 extern void qunlock(QLock*);
480 extern int canqlock(QLock*);
481 extern int (*_qlock)(QLock*, int, ulong); /* do not use */
482 extern void (*_qunlock)(QLock*, ulong);
484 typedef struct Rendez Rendez;
485 struct Rendez
487 QLock *l;
488 _Threadlist waiting;
489 };
491 extern void rsleep(Rendez*); /* unlocks r->l, sleeps, locks r->l again */
492 extern int rwakeup(Rendez*);
493 extern int rwakeupall(Rendez*);
494 extern void (*_rsleep)(Rendez*, ulong); /* do not use */
495 extern int (*_rwakeup)(Rendez*, int, ulong);
497 typedef struct RWLock RWLock;
498 struct RWLock
500 Lock l;
501 int readers;
502 _Thread *writer;
503 _Threadlist rwaiting;
504 _Threadlist wwaiting;
505 };
507 extern void rlock(RWLock*);
508 extern void runlock(RWLock*);
509 extern int canrlock(RWLock*);
510 extern void wlock(RWLock*);
511 extern void wunlock(RWLock*);
512 extern int canwlock(RWLock*);
513 extern int (*_rlock)(RWLock*, int, ulong); /* do not use */
514 extern int (*_wlock)(RWLock*, int, ulong);
515 extern void (*_runlock)(RWLock*, ulong);
516 extern void (*_wunlock)(RWLock*, ulong);
518 /*
519 * per-process private data
520 */
521 extern void** privalloc(void);
522 extern void privfree(void**);
524 /*
525 * network dialing
526 */
527 #define NETPATHLEN 40
528 extern int p9accept(int, char*);
529 extern int p9announce(char*, char*);
530 extern int p9dial(char*, char*, char*, int*);
531 extern int p9dialparse(char *ds, char **net, char **unixa, u32int *ip, int *port);
532 extern void p9setnetmtpt(char*, int, char*);
533 extern int p9listen(char*, char*);
534 extern char* p9netmkaddr(char*, char*, char*);
535 extern int p9reject(int, char*, char*);
537 #ifndef NOPLAN9DEFINES
538 #define accept p9accept
539 #define announce p9announce
540 #define dial p9dial
541 #define setnetmtpt p9setnetmtpt
542 #define listen p9listen
543 #define netmkaddr p9netmkaddr
544 #define reject p9reject
545 #endif
547 /*
548 * encryption
549 */
550 extern int pushssl(int, char*, char*, char*, int*);
551 extern int pushtls(int, char*, char*, int, char*, char*);
553 /*
554 * network services
555 */
556 typedef struct NetConnInfo NetConnInfo;
557 struct NetConnInfo
559 char *dir; /* connection directory */
560 char *root; /* network root */
561 char *spec; /* binding spec */
562 char *lsys; /* local system */
563 char *lserv; /* local service */
564 char *rsys; /* remote system */
565 char *rserv; /* remote service */
566 char *laddr;
567 char *raddr;
568 };
569 extern NetConnInfo* getnetconninfo(char*, int);
570 extern void freenetconninfo(NetConnInfo*);
572 /*
573 * system calls
575 */
576 #define STATMAX 65535U /* max length of machine-independent stat structure */
577 #define DIRMAX (sizeof(Dir)+STATMAX) /* max length of Dir structure */
578 #define ERRMAX 128 /* max length of error string */
580 #define MORDER 0x0003 /* mask for bits defining order of mounting */
581 #define MREPL 0x0000 /* mount replaces object */
582 #define MBEFORE 0x0001 /* mount goes before others in union directory */
583 #define MAFTER 0x0002 /* mount goes after others in union directory */
584 #define MCREATE 0x0004 /* permit creation in mounted directory */
585 #define MCACHE 0x0010 /* cache some data */
586 #define MMASK 0x0017 /* all bits on */
588 #define OREAD 0 /* open for read */
589 #define OWRITE 1 /* write */
590 #define ORDWR 2 /* read and write */
591 #define OEXEC 3 /* execute, == read but check execute permission */
592 #define OTRUNC 16 /* or'ed in (except for exec), truncate file first */
593 #define OCEXEC 32 /* or'ed in, close on exec */
594 #define ORCLOSE 64 /* or'ed in, remove on close */
595 #define ODIRECT 128 /* or'ed in, direct access */
596 #define ONONBLOCK 256 /* or'ed in, non-blocking call */
597 #define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */
598 #define OLOCK 0x2000 /* or'ed in, lock after opening */
599 #define OAPPEND 0x4000 /* or'ed in, append only */
601 #define AEXIST 0 /* accessible: exists */
602 #define AEXEC 1 /* execute access */
603 #define AWRITE 2 /* write access */
604 #define AREAD 4 /* read access */
606 /* Segattch */
607 #define SG_RONLY 0040 /* read only */
608 #define SG_CEXEC 0100 /* detach on exec */
610 #define NCONT 0 /* continue after note */
611 #define NDFLT 1 /* terminate after note */
612 #define NSAVE 2 /* clear note but hold state */
613 #define NRSTR 3 /* restore saved state */
615 /* bits in Qid.type */
616 #define QTDIR 0x80 /* type bit for directories */
617 #define QTAPPEND 0x40 /* type bit for append only files */
618 #define QTEXCL 0x20 /* type bit for exclusive use files */
619 #define QTMOUNT 0x10 /* type bit for mounted channel */
620 #define QTAUTH 0x08 /* type bit for authentication file */
621 #define QTLINK 0x04 /* symbolic link */
622 #define QTFILE 0x00 /* plain file */
624 /* bits in Dir.mode */
625 #define DMDIR 0x80000000 /* mode bit for directories */
626 #define DMAPPEND 0x40000000 /* mode bit for append only files */
627 #define DMEXCL 0x20000000 /* mode bit for exclusive use files */
628 #define DMMOUNT 0x10000000 /* mode bit for mounted channel */
629 #define DMAUTH 0x08000000 /* mode bit for authentication file */
630 #define DMDEVICE 0x00800000 /* mode bit for device files (Unix) */
631 #define DMSYMLINK 0x00400000 /* mode bit for symbolic links (Unix) */
632 #define DMNAMEDPIPE 0x00200000 /* mode bit for named pipes (Unix) */
633 #define DMSOCKET 0x00100000 /* mode bit for sockets (Unix) */
635 #define DMREAD 0x4 /* mode bit for read permission */
636 #define DMWRITE 0x2 /* mode bit for write permission */
637 #define DMEXEC 0x1 /* mode bit for execute permission */
639 #if defined(__FreeBSD__)
640 #undef RFFDG
641 #undef RFNOTEG
642 #undef RFPROC
643 #undef RFMEM
644 #undef RFNOWAIT
645 #undef RFCFDG
646 #undef RFNAMEG
647 #undef RFENVG
648 #undef RFCENVG
649 #undef RFCFDG
650 #undef RFCNAMEG
651 #endif
653 enum
655 RFNAMEG = (1<<0),
656 RFENVG = (1<<1),
657 RFFDG = (1<<2),
658 RFNOTEG = (1<<3),
659 RFPROC = (1<<4),
660 RFMEM = (1<<5),
661 RFNOWAIT = (1<<6),
662 RFCNAMEG = (1<<10),
663 RFCENVG = (1<<11),
664 RFCFDG = (1<<12),
665 /* RFREND = (1<<13), */
666 /* RFNOMNT = (1<<14) */
667 };
669 typedef
670 struct Qid
672 uvlong path;
673 ulong vers;
674 uchar type;
675 } Qid;
677 typedef
678 struct Dir {
679 /* system-modified data */
680 ushort type; /* server type */
681 uint dev; /* server subtype */
682 /* file data */
683 Qid qid; /* unique id from server */
684 ulong mode; /* permissions */
685 ulong atime; /* last read time */
686 ulong mtime; /* last write time */
687 vlong length; /* file length */
688 char *name; /* last element of path */
689 char *uid; /* owner name */
690 char *gid; /* group name */
691 char *muid; /* last modifier name */
692 } Dir;
694 /* keep /sys/src/ape/lib/ap/plan9/sys9.h in sync with this -rsc */
695 typedef
696 struct Waitmsg
698 int pid; /* of loved one */
699 ulong time[3]; /* of loved one & descendants */
700 char *msg;
701 } Waitmsg;
703 typedef
704 struct IOchunk
706 void *addr;
707 ulong len;
708 } IOchunk;
710 extern void _exits(char*);
712 extern void abort(void);
713 /* extern int access(char*, int); */
714 extern long p9alarm(ulong);
715 extern int await(char*, int);
716 extern int awaitfor(int, char*, int);
717 extern int awaitnohang(char*, int);
718 /* extern int bind(char*, char*, int); give up */
719 /* extern int brk(void*); <unistd.h> */
720 extern int p9chdir(char*);
721 extern int close(int);
722 extern int p9create(char*, int, ulong);
723 extern int p9dup(int, int);
724 extern int errstr(char*, uint);
725 extern int p9exec(char*, char*[]);
726 extern int p9execl(char*, ...);
727 /* extern int p9fork(void); */
728 extern int p9rfork(int);
729 /* not implemented
730 extern int fauth(int, char*);
731 extern int fstat(int, uchar*, int);
732 extern int fwstat(int, uchar*, int);
733 extern int fversion(int, int, char*, int);
734 extern int mount(int, int, char*, int, char*);
735 extern int unmount(char*, char*);
736 */
737 extern int noted(int);
738 extern int notify(void(*)(void*, char*));
739 extern int noteenable(char*);
740 extern int notedisable(char*);
741 extern int notifyon(char*);
742 extern int notifyoff(char*);
743 extern int p9open(char*, int);
744 extern int fd2path(int, char*, int);
745 extern int p9pipe(int*);
746 /*
747 * use defs from <unistd.h>
748 extern long pread(int, void*, long, vlong);
749 extern long preadv(int, IOchunk*, int, vlong);
750 extern long pwrite(int, void*, long, vlong);
751 extern long pwritev(int, IOchunk*, int, vlong);
752 extern long read(int, void*, long);
753 */
754 extern long readn(int, void*, long);
755 /* extern long readv(int, IOchunk*, int); <unistd.h> */
756 extern int remove(const char*);
757 /* extern void* sbrk(ulong); <unistd.h> */
758 /* extern long oseek(int, long, int); */
759 extern vlong p9seek(int, vlong, int);
760 /* give up
761 extern long segattach(int, char*, void*, ulong);
762 extern int segbrk(void*, void*);
763 extern int segdetach(void*);
764 extern int segflush(void*, ulong);
765 extern int segfree(void*, ulong);
766 */
767 extern int p9sleep(long);
768 /* extern int stat(char*, uchar*, int); give up */
769 extern Waitmsg* p9wait(void);
770 extern Waitmsg* p9waitfor(int);
771 extern Waitmsg* waitnohang(void);
772 extern int p9waitpid(void);
773 /* <unistd.h>
774 extern long write(int, void*, long);
775 extern long writev(int, IOchunk*, int);
776 */
777 /* extern int wstat(char*, uchar*, int); give up */
778 extern ulong rendezvous(ulong, ulong);
780 #ifndef NOPLAN9DEFINES
781 #define alarm p9alarm
782 #define dup p9dup
783 #define exec p9exec
784 #define execl p9execl
785 #define seek p9seek
786 #define sleep p9sleep
787 #define wait p9wait
788 #define waitpid p9waitpid
789 /* #define fork p9fork */
790 #define rfork p9rfork
791 /* #define access p9access */
792 #define create p9create
793 #undef open
794 #define open p9open
795 #define pipe p9pipe
796 #define waitfor p9waitfor
797 #endif
799 extern Dir* dirstat(char*);
800 extern Dir* dirfstat(int);
801 extern int dirwstat(char*, Dir*);
802 extern int dirfwstat(int, Dir*);
803 extern long dirread(int, Dir**);
804 extern void nulldir(Dir*);
805 extern long dirreadall(int, Dir**);
806 /* extern int getpid(void); <unistd.h> */
807 /* extern int getppid(void); */
808 extern void rerrstr(char*, uint);
809 extern char* sysname(void);
810 extern void werrstr(char*, ...);
811 extern char* getns(void);
812 extern char* get9root(void);
813 extern char* unsharp(char*);
814 extern int sendfd(int, int);
815 extern int recvfd(int);
816 extern int post9pservice(int, char*);
818 /* external names that we don't want to step on */
819 #ifndef NOPLAN9DEFINES
820 #define main p9main
821 #endif
823 /* compiler directives on plan 9 */
824 #define SET(x) ((x)=0)
825 #define USED(x) if(x){}else{}
826 #ifdef __GNUC__
827 # if __GNUC__ >= 3
828 # undef USED
829 # define USED(x) { ulong __y __attribute__ ((unused)); __y = (ulong)(x); }
830 # endif
831 #endif
833 /* command line */
834 extern char *argv0;
835 extern void __fixargv0(void);
836 #define ARGBEGIN for((argv0?0:(argv0=(__fixargv0(),*argv))),argv++,argc--;\
837 argv[0] && argv[0][0]=='-' && argv[0][1];\
838 argc--, argv++) {\
839 char *_args, *_argt;\
840 Rune _argc;\
841 _args = &argv[0][1];\
842 if(_args[0]=='-' && _args[1]==0){\
843 argc--; argv++; break;\
844 }\
845 _argc = 0;\
846 while(*_args && (_args += chartorune(&_argc, _args)))\
847 switch(_argc)
848 #define ARGEND SET(_argt);USED(_argt);USED(_argc);USED(_args);}USED(argv);USED(argc);
849 #define ARGF() (_argt=_args, _args="",\
850 (*_argt? _argt: argv[1]? (argc--, *++argv): 0))
851 #define EARGF(x) (_argt=_args, _args="",\
852 (*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0)))
854 #define ARGC() _argc
856 #if defined(__cplusplus)
858 #endif
859 #endif /* _LIB9_H_ */