tlibc.h - plan9port - [fork] Plan 9 from user space
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tlibc.h (24968B)
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1 // This file originated as Plan 9's /sys/include/libc.h.
2 // The plan9port-specific changes may be distributed
3 // using the license in ../src/lib9/LICENSE.
4
5 /*
6 * Lib9 is miscellany from the Plan 9 C library that doesn't
7 * fit into libutf or into libfmt, but is still missing from traditional
8 * Unix C libraries.
9 */
10 #ifndef _LIBC_H_
11 #define _LIBC_H_ 1
12 #if defined(__cplusplus)
13 extern "C" {
14 #endif
15
16 #include <utf.h>
17 #include <fmt.h>
18
19 /*
20 * Begin usual libc.h
21 */
22
23 #ifndef nil
24 #define nil ((void*)0)
25 #endif
26 #define nelem(x) (sizeof(x)/sizeof((x)[0]))
27
28 #ifndef offsetof
29 #define offsetof(s, m) (ulong)(&(((s*)0)->m))
30 #endif
31
32 /*
33 * mem routines (provided by system <string.h>)
34 *
35 extern void* memccpy(void*, void*, int, ulong);
36 extern void* memset(void*, int, ulong);
37 extern int memcmp(void*, void*, ulong);
38 extern void* memcpy(void*, void*, ulong);
39 extern void* memmove(void*, void*, ulong);
40 extern void* memchr(void*, int, ulong);
41 */
42
43 /*
44 * string routines (provided by system <string.h>)
45 *
46 extern char* strcat(char*, char*);
47 extern char* strchr(char*, int);
48 extern int strcmp(char*, char*);
49 extern char* strcpy(char*, char*);
50 */
51 extern char* strecpy(char*, char*, char*);
52 extern char* p9strdup(char*);
53 /*
54 extern char* strncat(char*, char*, long);
55 extern char* strncpy(char*, char*, long);
56 extern int strncmp(char*, char*, long);
57 extern char* strpbrk(char*, char*);
58 extern char* strrchr(char*, int);
59 extern char* strtok(char*, char*);
60 extern long strlen(char*);
61 extern long strspn(char*, char*);
62 extern long strcspn(char*, char*);
63 extern char* strstr(char*, char*);
64 */
65 extern int cistrncmp(char*, char*, int);
66 extern int cistrcmp(char*, char*);
67 extern char* cistrstr(char*, char*);
68 extern int tokenize(char*, char**, int);
69
70 /*
71 enum
72 {
73 UTFmax = 4,
74 Runesync = 0x80,
75 Runeself = 0x80,
76 Runeerror = 0xFFFD,
77 Runemax = 0x10FFFF,
78 };
79 */
80
81 /*
82 * rune routines (provided by <utf.h>
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 /*
120 * malloc (provied by system <stdlib.h>)
121 *
122 extern void* malloc(ulong);
123 */
124 extern void* p9malloc(ulong);
125 extern void* mallocz(ulong, int);
126 extern void p9free(void*);
127 extern void* p9calloc(ulong, ulong);
128 extern void* p9realloc(void*, ulong);
129 extern void setmalloctag(void*, ulong);
130 extern void setrealloctag(void*, ulong);
131 extern ulong getmalloctag(void*);
132 extern ulong getrealloctag(void*);
133 /*
134 extern void* malloctopoolblock(void*);
135 */
136 #ifndef NOPLAN9DEFINES
137 #define malloc p9malloc
138 #define realloc p9realloc
139 #define calloc p9calloc
140 #define free p9free
141 #undef strdup
142 #define strdup p9strdup
143 #endif
144
145 /*
146 * print routines (provided by <fmt.h>)
147 *
148 typedef struct Fmt Fmt;
149 struct Fmt{
150 uchar runes;
151 void *start;
152 void *to;
153 void *stop;
154 int (*flush)(Fmt *);
155 void *farg;
156 int nfmt;
157 va_list args;
158 int r;
159 int width;
160 int prec;
161 ulong flags;
162 };
163
164 enum{
165 FmtWidth = 1,
166 FmtLeft = FmtWidth << 1,
167 FmtPrec = FmtLeft << 1,
168 FmtSharp = FmtPrec << 1,
169 FmtSpace = FmtSharp << 1,
170 FmtSign = FmtSpace << 1,
171 FmtZero = FmtSign << 1,
172 FmtUnsigned = FmtZero << 1,
173 FmtShort = FmtUnsigned << 1,
174 FmtLong = FmtShort << 1,
175 FmtVLong = FmtLong << 1,
176 FmtComma = FmtVLong << 1,
177 FmtByte = FmtComma << 1,
178
179 FmtFlag = FmtByte << 1
180 };
181
182 extern int print(char*, ...);
183 extern char* seprint(char*, char*, char*, ...);
184 extern char* vseprint(char*, char*, char*, va_list);
185 extern int snprint(char*, int, char*, ...);
186 extern int vsnprint(char*, int, char*, va_list);
187 extern char* smprint(char*, ...);
188 extern char* vsmprint(char*, va_list);
189 extern int sprint(char*, char*, ...);
190 extern int fprint(int, char*, ...);
191 extern int vfprint(int, char*, va_list);
192
193 extern int runesprint(Rune*, char*, ...);
194 extern int runesnprint(Rune*, int, char*, ...);
195 extern int runevsnprint(Rune*, int, char*, va_list);
196 extern Rune* runeseprint(Rune*, Rune*, char*, ...);
197 extern Rune* runevseprint(Rune*, Rune*, char*, va_list);
198 extern Rune* runesmprint(char*, ...);
199 extern Rune* runevsmprint(char*, va_list);
200
201 extern int fmtfdinit(Fmt*, int, char*, int);
202 extern int fmtfdflush(Fmt*);
203 extern int fmtstrinit(Fmt*);
204 extern char* fmtstrflush(Fmt*);
205 extern int runefmtstrinit(Fmt*);
206 extern Rune* runefmtstrflush(Fmt*);
207
208 extern int fmtinstall(int, int (*)(Fmt*));
209 extern int dofmt(Fmt*, char*);
210 extern int dorfmt(Fmt*, Rune*);
211 extern int fmtprint(Fmt*, char*, ...);
212 extern int fmtvprint(Fmt*, char*, va_list);
213 extern int fmtrune(Fmt*, int);
214 extern int fmtstrcpy(Fmt*, char*);
215 extern int fmtrunestrcpy(Fmt*, Rune*);
216 */
217
218 /*
219 * error string for %r
220 * supplied on per os basis, not part of fmt library
221 *
222 * (provided by lib9, but declared in fmt.h)
223 *
224 extern int errfmt(Fmt *f);
225 */
226
227 /*
228 * quoted strings
229 */
230 extern char *unquotestrdup(char*);
231 extern Rune *unquoterunestrdup(Rune*);
232 extern char *quotestrdup(char*);
233 extern Rune *quoterunestrdup(Rune*);
234 /*
235 * in fmt.h
236 *
237 extern void quotefmtinstall(void);
238 extern int quotestrfmt(Fmt*);
239 extern int quoterunestrfmt(Fmt*);
240 */
241 #ifndef NOPLAN9DEFINES
242 #define doquote fmtdoquote
243 #endif
244 extern int needsrcquote(int);
245
246 /*
247 * random number
248 */
249 extern void p9srand(long);
250 extern int p9rand(void);
251
252 extern int p9nrand(int);
253 extern long p9lrand(void);
254 extern long p9lnrand(long);
255 extern double p9frand(void);
256 extern ulong truerand(void); /* uses /dev/random */
257 extern ulong ntruerand(ulong); /* uses /dev/random */
258
259 #ifndef NOPLAN9DEFINES
260 #define srand p9srand
261 #define rand p9rand
262 #define nrand p9nrand
263 #define lrand p9lrand
264 #define lnrand p9lnrand
265 #define frand p9frand
266 #endif
267
268 /*
269 * math
270 */
271 extern ulong getfcr(void);
272 extern void setfsr(ulong);
273 extern ulong getfsr(void);
274 extern void setfcr(ulong);
275 extern double NaN(void);
276 extern double Inf(int);
277 extern int isNaN(double);
278 extern int isInf(double, int);
279 extern ulong umuldiv(ulong, ulong, ulong);
280 extern long muldiv(long, long, long);
281
282 /*
283 * provided by math.h
284 *
285 extern double pow(double, double);
286 extern double atan2(double, double);
287 extern double fabs(double);
288 extern double atan(double);
289 extern double log(double);
290 extern double log10(double);
291 extern double exp(double);
292 extern double floor(double);
293 extern double ceil(double);
294 extern double hypot(double, double);
295 extern double sin(double);
296 extern double cos(double);
297 extern double tan(double);
298 extern double asin(double);
299 extern double acos(double);
300 extern double sinh(double);
301 extern double cosh(double);
302 extern double tanh(double);
303 extern double sqrt(double);
304 extern double fmod(double, double);
305 #define HUGE 3.4028234e38
306 #define PIO2 1.570796326794896619231e0
307 #define PI (PIO2+PIO2)
308 */
309 #define PI M_PI
310 #define PIO2 M_PI_2
311
312 /*
313 * Time-of-day
314 */
315
316 typedef
317 struct Tm
318 {
319 int sec;
320 int min;
321 int hour;
322 int mday;
323 int mon;
324 int year;
325 int wday;
326 int yday;
327 char zone[4];
328 int tzoff;
329 } Tm;
330
331 extern Tm* p9gmtime(long);
332 extern Tm* p9localtime(long);
333 extern char* p9asctime(Tm*);
334 extern char* p9ctime(long);
335 extern double p9cputime(void);
336 extern long p9times(long*);
337 extern long p9tm2sec(Tm*);
338 extern vlong p9nsec(void);
339
340 #ifndef NOPLAN9DEFINES
341 #define gmtime p9gmtime
342 #define localtime p9localtime
343 #define asctime p9asctime
344 #define ctime p9ctime
345 #define cputime p9cputime
346 #define times p9times
347 #define tm2sec p9tm2sec
348 #define nsec p9nsec
349 #endif
350
351 /*
352 * one-of-a-kind
353 */
354 enum
355 {
356 PNPROC = 1,
357 PNGROUP = 2
358 };
359
360 /* extern int abs(int); <stdlib.h> */
361 extern int p9atexit(void(*)(void));
362 extern void p9atexitdont(void(*)(void));
363 extern int atnotify(int(*)(void*, char*), int);
364 /*
365 * <stdlib.h>
366 extern double atof(char*); <stdlib.h>
367 */
368 extern int p9atoi(char*);
369 extern long p9atol(char*);
370 extern vlong p9atoll(char*);
371 extern double fmtcharstod(int(*)(void*), void*);
372 extern char* cleanname(char*);
373 extern int p9decrypt(void*, void*, int);
374 extern int p9encrypt(void*, void*, int);
375 extern int netcrypt(void*, void*);
376 extern int dec64(uchar*, int, char*, int);
377 extern int enc64(char*, int, uchar*, int);
378 extern int dec32(uchar*, int, char*, int);
379 extern int enc32(char*, int, uchar*, int);
380 extern int dec16(uchar*, int, char*, int);
381 extern int enc16(char*, int, uchar*, int);
382 extern int encodefmt(Fmt*);
383 extern int dirmodefmt(Fmt*);
384 extern int exitcode(char*);
385 extern void exits(char*);
386 extern double p9frexp(double, int*);
387 extern ulong getcallerpc(void*);
388 #if defined(__GNUC__) || defined(__clang__) || defined(__IBMC__)
389 #define getcallerpc(x) ((ulong)__builtin_return_address(0))
390 #endif
391 extern char* p9getenv(char*);
392 extern int p9putenv(char*, char*);
393 extern int getfields(char*, char**, int, int, char*);
394 extern int gettokens(char *, char **, int, char *);
395 extern char* getuser(void);
396 extern char* p9getwd(char*, int);
397 extern int iounit(int);
398 /* extern long labs(long); <math.h> */
399 /* extern double ldexp(double, int); <math.h> */
400 extern void p9longjmp(p9jmp_buf, int);
401 extern char* mktemp(char*);
402 extern int opentemp(char*, int);
403 /* extern double modf(double, double*); <math.h> */
404 extern void p9notejmp(void*, p9jmp_buf, int);
405 extern void perror(const char*);
406 extern int postnote(int, int, char *);
407 extern double p9pow10(int);
408 /* extern int putenv(char*, char*); <stdlib.h. */
409 /* extern void qsort(void*, long, long, int (*)(void*, void*)); <stdlib.h> */
410 extern char* searchpath(char*);
411 /* extern int p9setjmp(p9jmp_buf); */
412 #define p9setjmp(b) sigsetjmp((void*)(b), 1)
413 /*
414 * <stdlib.h>
415 extern long strtol(char*, char**, int);
416 extern ulong strtoul(char*, char**, int);
417 extern vlong strtoll(char*, char**, int);
418 extern uvlong strtoull(char*, char**, int);
419 */
420 extern void sysfatal(char*, ...);
421 extern void p9syslog(int, char*, char*, ...);
422 extern long p9time(long*);
423 /* extern int tolower(int); <ctype.h> */
424 /* extern int toupper(int); <ctype.h> */
425 extern void needstack(int);
426 extern char* readcons(char*, char*, int);
427
428 extern void (*_pin)(void);
429 extern void (*_unpin)(void);
430
431 #ifndef NOPLAN9DEFINES
432 #define atexit p9atexit
433 #define atexitdont p9atexitdont
434 #define atoi p9atoi
435 #define atol p9atol
436 #define atoll p9atoll
437 #define encrypt p9encrypt
438 #define decrypt p9decrypt
439 #undef frexp
440 #define frexp p9frexp
441 #define getenv p9getenv
442 #define getwd p9getwd
443 #define longjmp p9longjmp
444 #undef setjmp
445 #define setjmp p9setjmp
446 #define putenv p9putenv
447 #define notejmp p9notejmp
448 #define jmp_buf p9jmp_buf
449 #define time p9time
450 #define pow10 p9pow10
451 #define strtod fmtstrtod
452 #define charstod fmtcharstod
453 #define syslog p9syslog
454 #endif
455
456 /*
457 * just enough information so that libc can be
458 * properly locked without dragging in all of libthread
459 */
460 typedef struct _Thread _Thread;
461 typedef struct _Threadlist _Threadlist;
462 struct _Threadlist
463 {
464 _Thread *head;
465 _Thread *tail;
466 };
467
468 extern _Thread *(*threadnow)(void);
469
470 /*
471 * synchronization
472 */
473 typedef struct Lock Lock;
474 struct Lock
475 {
476 int init;
477 pthread_mutex_t mutex;
478 int held;
479 };
480
481 extern void lock(Lock*);
482 extern void unlock(Lock*);
483 extern int canlock(Lock*);
484 extern int (*_lock)(Lock*, int, ulong);
485 extern void (*_unlock)(Lock*, ulong);
486
487 typedef struct QLock QLock;
488 struct QLock
489 {
490 Lock l;
491 _Thread *owner;
492 _Threadlist waiting;
493 };
494
495 extern void qlock(QLock*);
496 extern void qunlock(QLock*);
497 extern int canqlock(QLock*);
498 extern int (*_qlock)(QLock*, int, ulong); /* do not use */
499 extern void (*_qunlock)(QLock*, ulong);
500
501 typedef struct Rendez Rendez;
502 struct Rendez
503 {
504 QLock *l;
505 _Threadlist waiting;
506 };
507
508 extern void rsleep(Rendez*); /* unlocks r->l, sleeps, locks r->l again */
509 extern int rwakeup(Rendez*);
510 extern int rwakeupall(Rendez*);
511 extern void (*_rsleep)(Rendez*, ulong); /* do not use */
512 extern int (*_rwakeup)(Rendez*, int, ulong);
513
514 typedef struct RWLock RWLock;
515 struct RWLock
516 {
517 Lock l;
518 int readers;
519 _Thread *writer;
520 _Threadlist rwaiting;
521 _Threadlist wwaiting;
522 };
523
524 extern void rlock(RWLock*);
525 extern void runlock(RWLock*);
526 extern int canrlock(RWLock*);
527 extern void wlock(RWLock*);
528 extern void wunlock(RWLock*);
529 extern int canwlock(RWLock*);
530 extern int (*_rlock)(RWLock*, int, ulong); /* do not use */
531 extern int (*_wlock)(RWLock*, int, ulong);
532 extern void (*_runlock)(RWLock*, ulong);
533 extern void (*_wunlock)(RWLock*, ulong);
534
535 /*
536 * per-process private data
537 */
538 extern void** privalloc(void);
539 extern void privfree(void**);
540
541 /*
542 * network dialing
543 */
544 #define NETPATHLEN 40
545 extern int p9accept(int, char*);
546 extern int p9announce(char*, char*);
547 extern int p9dial(char*, char*, char*, int*);
548 extern int p9dialparse(char *ds, char **net, char **unixa, void *ip, int *port);
549 extern void p9setnetmtpt(char*, int, char*);
550 extern int p9listen(char*, char*);
551 extern char* p9netmkaddr(char*, char*, char*);
552 extern int p9reject(int, char*, char*);
553
554 #ifndef NOPLAN9DEFINES
555 #define accept p9accept
556 #define announce p9announce
557 #define dial p9dial
558 #define setnetmtpt p9setnetmtpt
559 #define listen p9listen
560 #define netmkaddr p9netmkaddr
561 #define reject p9reject
562 #endif
563
564 /*
565 * encryption
566 */
567 extern int pushssl(int, char*, char*, char*, int*);
568 extern int pushtls(int, char*, char*, int, char*, char*);
569
570 /*
571 * network services
572 */
573 typedef struct NetConnInfo NetConnInfo;
574 struct NetConnInfo
575 {
576 char *dir; /* connection directory */
577 char *root; /* network root */
578 char *spec; /* binding spec */
579 char *lsys; /* local system */
580 char *lserv; /* local service */
581 char *rsys; /* remote system */
582 char *rserv; /* remote service */
583 char *laddr;
584 char *raddr;
585 };
586 extern NetConnInfo* getnetconninfo(char*, int);
587 extern void freenetconninfo(NetConnInfo*);
588
589 /*
590 * system calls
591 *
592 */
593 #define STATMAX 65535U /* max length of machine-independent stat structure */
594 #define DIRMAX (sizeof(Dir)+STATMAX) /* max length of Dir structure */
595 #define ERRMAX 128 /* max length of error string */
596
597 #define MORDER 0x0003 /* mask for bits defining order of mounting */
598 #define MREPL 0x0000 /* mount replaces object */
599 #define MBEFORE 0x0001 /* mount goes before others in union directory */
600 #define MAFTER 0x0002 /* mount goes after others in union directory */
601 #define MCREATE 0x0004 /* permit creation in mounted directory */
602 #define MCACHE 0x0010 /* cache some data */
603 #define MMASK 0x0017 /* all bits on */
604
605 #define OREAD 0 /* open for read */
606 #define OWRITE 1 /* write */
607 #define ORDWR 2 /* read and write */
608 #define OEXEC 3 /* execute, == read but check execute permission */
609 #define OTRUNC 16 /* or'ed in (except for exec), truncate file first */
610 #define OCEXEC 32 /* or'ed in, close on exec */
611 #define ORCLOSE 64 /* or'ed in, remove on close */
612 #define ODIRECT 128 /* or'ed in, direct access */
613 #define ONONBLOCK 256 /* or'ed in, non-blocking call */
614 #define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */
615 #define OLOCK 0x2000 /* or'ed in, lock after opening */
616 #define OAPPEND 0x4000 /* or'ed in, append only */
617
618 #define AEXIST 0 /* accessible: exists */
619 #define AEXEC 1 /* execute access */
620 #define AWRITE 2 /* write access */
621 #define AREAD 4 /* read access */
622
623 /* Segattch */
624 #define SG_RONLY 0040 /* read only */
625 #define SG_CEXEC 0100 /* detach on exec */
626
627 #define NCONT 0 /* continue after note */
628 #define NDFLT 1 /* terminate after note */
629 #define NSAVE 2 /* clear note but hold state */
630 #define NRSTR 3 /* restore saved state */
631
632 /* bits in Qid.type */
633 #define QTDIR 0x80 /* type bit for directories */
634 #define QTAPPEND 0x40 /* type bit for append only files */
635 #define QTEXCL 0x20 /* type bit for exclusive use files */
636 #define QTMOUNT 0x10 /* type bit for mounted channel */
637 #define QTAUTH 0x08 /* type bit for authentication file */
638 #define QTTMP 0x04 /* type bit for non-backed-up file */
639 #define QTSYMLINK 0x02 /* type bit for symbolic link */
640 #define QTFILE 0x00 /* type bits for plain file */
641
642 /* bits in Dir.mode */
643 #define DMDIR 0x80000000 /* mode bit for directories */
644 #define DMAPPEND 0x40000000 /* mode bit for append only files */
645 #define DMEXCL 0x20000000 /* mode bit for exclusive use files */
646 #define DMMOUNT 0x10000000 /* mode bit for mounted channel */
647 #define DMAUTH 0x08000000 /* mode bit for authentication file */
648 #define DMTMP 0x04000000 /* mode bit for non-backed-up file */
649 #define DMSYMLINK 0x02000000 /* mode bit for symbolic link (Unix, 9P2000.u) */
650 #define DMDEVICE 0x00800000 /* mode bit for device file (Unix, 9P2000.u) */
651 #define DMNAMEDPIPE 0x00200000 /* mode bit for named pipe (Unix, 9P2000.u) */
652 #define DMSOCKET 0x00100000 /* mode bit for socket (Unix, 9P2000.u) */
653 #define DMSETUID 0x00080000 /* mode bit for setuid (Unix, 9P2000.u) */
654 #define DMSETGID 0x00040000 /* mode bit for setgid (Unix, 9P2000.u) */
655
656 #define DMREAD 0x4 /* mode bit for read permission */
657 #define DMWRITE 0x2 /* mode bit for write permission */
658 #define DMEXEC 0x1 /* mode bit for execute permission */
659
660 #ifdef RFMEM /* FreeBSD, OpenBSD */
661 #undef RFFDG
662 #undef RFNOTEG
663 #undef RFPROC
664 #undef RFMEM
665 #undef RFNOWAIT
666 #undef RFCFDG
667 #undef RFNAMEG
668 #undef RFENVG
669 #undef RFCENVG
670 #undef RFCFDG
671 #undef RFCNAMEG
672 #endif
673
674 enum
675 {
676 RFNAMEG = (1<<0),
677 RFENVG = (1<<1),
678 RFFDG = (1<<2),
679 RFNOTEG = (1<<3),
680 RFPROC = (1<<4),
681 RFMEM = (1<<5),
682 RFNOWAIT = (1<<6),
683 RFCNAMEG = (1<<10),
684 RFCENVG = (1<<11),
685 RFCFDG = (1<<12)
686 /* RFREND = (1<<13), */
687 /* RFNOMNT = (1<<14) */
688 };
689
690 typedef
691 struct Qid
692 {
693 uvlong path;
694 ulong vers;
695 uchar type;
696 } Qid;
697
698 typedef
699 struct Dir {
700 /* system-modified data */
701 ushort type; /* server type */
702 uint dev; /* server subtype */
703 /* file data */
704 Qid qid; /* unique id from server */
705 ulong mode; /* permissions */
706 ulong atime; /* last read time */
707 ulong mtime; /* last write time */
708 vlong length; /* file length */
709 char *name; /* last element of path */
710 char *uid; /* owner name */
711 char *gid; /* group name */
712 char *muid; /* last modifier name */
713
714 /* 9P2000.u extensions */
715 uint uidnum; /* numeric uid */
716 uint gidnum; /* numeric gid */
717 uint muidnum; /* numeric muid */
718 char *ext; /* extended info */
719 } Dir;
720
721 /* keep /sys/src/ape/lib/ap/plan9/sys9.h in sync with this -rsc */
722 typedef
723 struct Waitmsg
724 {
725 int pid; /* of loved one */
726 ulong time[3]; /* of loved one & descendants */
727 char *msg;
728 } Waitmsg;
729
730 typedef
731 struct IOchunk
732 {
733 void *addr;
734 ulong len;
735 } IOchunk;
736
737 extern void _exits(char*);
738
739 extern void abort(void);
740 /* extern int access(char*, int); */
741 extern long p9alarm(ulong);
742 extern int await(char*, int);
743 extern int awaitfor(int, char*, int);
744 extern int awaitnohang(char*, int);
745 /* extern int bind(char*, char*, int); give up */
746 /* extern int brk(void*); <unistd.h> */
747 extern int p9chdir(char*);
748 extern int p9close(int);
749 extern int p9create(char*, int, ulong);
750 extern int p9dup(int, int);
751 extern int errstr(char*, uint);
752 extern int p9exec(char*, char*[]);
753 extern int p9execl(char*, ...);
754 /* extern int p9fork(void); */
755 extern int p9rfork(int);
756 /* not implemented
757 extern int fauth(int, char*);
758 extern int fstat(int, uchar*, int);
759 extern int fwstat(int, uchar*, int);
760 extern int fversion(int, int, char*, int);
761 extern int mount(int, int, char*, int, char*);
762 extern int unmount(char*, char*);
763 */
764 extern int noted(int);
765 extern int notify(void(*)(void*, char*));
766 extern int noteenable(char*);
767 extern int notedisable(char*);
768 extern int notifyon(char*);
769 extern int notifyoff(char*);
770 extern int p9open(char*, int);
771 extern int fd2path(int, char*, int);
772 extern int p9pipe(int*);
773 /*
774 * use defs from <unistd.h>
775 extern long pread(int, void*, long, vlong);
776 extern long preadv(int, IOchunk*, int, vlong);
777 extern long pwrite(int, void*, long, vlong);
778 extern long pwritev(int, IOchunk*, int, vlong);
779 extern long read(int, void*, long);
780 */
781 extern long readn(int, void*, long);
782 /* extern long readv(int, IOchunk*, int); <unistd.h> */
783 extern int remove(const char*);
784 /* extern void* sbrk(ulong); <unistd.h> */
785 /* extern long oseek(int, long, int); */
786 extern vlong p9seek(int, vlong, int);
787 /* give up
788 extern long segattach(int, char*, void*, ulong);
789 extern int segbrk(void*, void*);
790 extern int segdetach(void*);
791 extern int segflush(void*, ulong);
792 extern int segfree(void*, ulong);
793 */
794 extern int p9sleep(long);
795 /* extern int stat(char*, uchar*, int); give up */
796 extern Waitmsg* p9wait(void);
797 extern Waitmsg* p9waitfor(int);
798 extern Waitmsg* waitnohang(void);
799 extern int p9waitpid(void);
800 /* <unistd.h>
801 extern long write(int, void*, long);
802 extern long writev(int, IOchunk*, int);
803 */
804 extern long p9write(int, void*, long);
805 /* extern int wstat(char*, uchar*, int); give up */
806 extern ulong rendezvous(ulong, ulong);
807
808 #ifndef NOPLAN9DEFINES
809 #define alarm p9alarm
810 #define dup p9dup
811 #define exec p9exec
812 #define execl p9execl
813 #define seek p9seek
814 #define sleep p9sleep
815 #define wait p9wait
816 #define waitpid p9waitpid
817 /* #define fork p9fork */
818 #define rfork p9rfork
819 /* #define access p9access */
820 #define create p9create
821 #undef open
822 #define open p9open
823 #undef close
824 #define close p9close
825 #define pipe p9pipe
826 #define waitfor p9waitfor
827 #define write p9write
828 #endif
829
830 extern Dir* dirstat(char*);
831 extern Dir* dirfstat(int);
832 extern int dirwstat(char*, Dir*);
833 extern int dirfwstat(int, Dir*);
834 extern long dirread(int, Dir**);
835 extern void nulldir(Dir*);
836 extern long dirreadall(int, Dir**);
837 /* extern int getpid(void); <unistd.h> */
838 /* extern int getppid(void); */
839 extern void rerrstr(char*, uint);
840 extern char* sysname(void);
841 extern void werrstr(char*, ...);
842 extern char* getns(void);
843 extern char* get9root(void);
844 extern char* unsharp(char*);
845 extern int sendfd(int, int);
846 extern int recvfd(int);
847 extern int post9pservice(int, char*, char*);
848 extern int chattyfuse;
849
850 /* external names that we don't want to step on */
851 #ifndef NOPLAN9DEFINES
852 #define main p9main
853 #endif
854
855 #ifdef VARARGCK
856 #pragma varargck type "lld" vlong
857 #pragma varargck type "llx" vlong
858 #pragma varargck type "lld" uvlong
859 #pragma varargck type "llx" uvlong
860 #pragma varargck type "ld" long
861 #pragma varargck type "lx" long
862 #pragma varargck type "ld" ulong
863 #pragma varargck type "lx" ulong
864 #pragma varargck type "d" int
865 #pragma varargck type "x" int
866 #pragma varargck type "c" int
867 #pragma varargck type "C" int
868 #pragma varargck type "d" uint
869 #pragma varargck type "x" uint
870 #pragma varargck type "c" uint
871 #pragma varargck type "C" uint
872 #pragma varargck type "f" double
873 #pragma varargck type "e" double
874 #pragma varargck type "g" double
875 #pragma varargck type "lf" long double
876 #pragma varargck type "le" long double
877 #pragma varargck type "lg" long double
878 #pragma varargck type "s" char*
879 #pragma varargck type "q" char*
880 #pragma varargck type "S" Rune*
881 #pragma varargck type "Q" Rune*
882 #pragma varargck type "r" void
883 #pragma varargck type "%" void
884 #pragma varargck type "n" int*
885 #pragma varargck type "p" void*
886 #pragma varargck type "<" void*
887 #pragma varargck type "[" void*
888 #pragma varargck type "H" void*
889 #pragma varargck type "lH" void*
890
891 #pragma varargck flag ' '
892 #pragma varargck flag '#'
893 #pragma varargck flag '+'
894 #pragma varargck flag ','
895 #pragma varargck flag '-'
896 #pragma varargck flag 'u'
897
898 #pragma varargck argpos fmtprint 2
899 #pragma varargck argpos fprint 2
900 #pragma varargck argpos print 1
901 #pragma varargck argpos runeseprint 3
902 #pragma varargck argpos runesmprint 1
903 #pragma varargck argpos runesnprint 3
904 #pragma varargck argpos runesprint 2
905 #pragma varargck argpos seprint 3
906 #pragma varargck argpos smprint 1
907 #pragma varargck argpos snprint 3
908 #pragma varargck argpos sprint 2
909 #pragma varargck argpos sysfatal 1
910 #pragma varargck argpos p9syslog 3
911 #pragma varargck argpos werrstr 1
912 #endif
913
914 /* compiler directives on plan 9 */
915 #define SET(x) ((x)=0)
916 #define USED(x) if(x){}else{}
917 #ifdef __GNUC__
918 # if __GNUC__ >= 3
919 # undef USED
920 # define USED(x) ((void)(x))
921 # endif
922 #endif
923
924 /* command line */
925 extern char *argv0;
926 extern void __fixargv0(void);
927 #define ARGBEGIN for((argv0?0:(argv0=(__fixargv0(),*argv))),argv++,argc--;\
928 argv[0] && argv[0][0]=='-' && argv[0][1];\
929 argc--, argv++) {\
930 char *_args, *_argt;\
931 Rune _argc;\
932 _args = &argv[0][1];\
933 if(_args[0]=='-' && _args[1]==0){\
934 argc--; argv++; break;\
935 }\
936 _argc = 0;\
937 while(*_args && (_args += chartorune(&_argc, _args)))\
938 switch(_argc)
939 #define ARGEND SET(_argt);USED(_argt);USED(_argc);USED(_args);}USED(argv);USED(argc);
940 #define ARGF() (_argt=_args, _args="",\
941 (*_argt? _argt: argv[1]? (argc--, *++argv): 0))
942 #define EARGF(x) (_argt=_args, _args="",\
943 (*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0)))
944
945 #define ARGC() _argc
946
947 #if defined(__cplusplus)
948 }
949 #endif
950 #endif /* _LIB9_H_ */