libc.h - 9base - revived minimalist port of Plan 9 userland to Unix
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libc.h (24860B)
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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
11
12 #include <utf.h>
13 #include <fmt.h>
14
15 /*
16 * Begin usual libc.h
17 */
18
19 #ifndef nil
20 #define nil ((void*)0)
21 #endif
22 #define nelem(x) (sizeof(x)/sizeof((x)[0]))
23
24 #ifndef offsetof
25 #define offsetof(s, m) (ulong)(&(((s*)0)->m))
26 #endif
27
28 /*
29 * mem routines (provided by system <string.h>)
30 *
31 extern void* memccpy(void*, void*, int, ulong);
32 extern void* memset(void*, int, ulong);
33 extern int memcmp(void*, void*, ulong);
34 extern void* memcpy(void*, void*, ulong);
35 extern void* memmove(void*, void*, ulong);
36 extern void* memchr(void*, int, ulong);
37 */
38
39 /*
40 * string routines (provided by system <string.h>)
41 *
42 extern char* strcat(char*, char*);
43 extern char* strchr(char*, int);
44 extern int strcmp(char*, char*);
45 extern char* strcpy(char*, char*);
46 */
47 extern char* strecpy(char*, char*, char*);
48 extern char* p9strdup(char*);
49 /*
50 extern char* strncat(char*, char*, long);
51 extern char* strncpy(char*, char*, long);
52 extern int strncmp(char*, char*, long);
53 extern char* strpbrk(char*, char*);
54 extern char* strrchr(char*, int);
55 extern char* strtok(char*, char*);
56 extern long strlen(char*);
57 extern long strspn(char*, char*);
58 extern long strcspn(char*, char*);
59 extern char* strstr(char*, char*);
60 */
61 extern int cistrncmp(char*, char*, int);
62 extern int cistrcmp(char*, char*);
63 extern char* cistrstr(char*, char*);
64 extern int tokenize(char*, char**, int);
65
66 /*
67 enum
68 {
69 UTFmax = 4,
70 Runesync = 0x80,
71 Runeself = 0x80,
72 Runeerror = 0xFFFD,
73 Runemax = 0x10FFFF,
74 };
75 */
76
77 /*
78 * rune routines (provided by <utf.h>
79 *
80 extern int runetochar(char*, Rune*);
81 extern int chartorune(Rune*, char*);
82 extern int runelen(long);
83 extern int runenlen(Rune*, int);
84 extern int fullrune(char*, int);
85 extern int utflen(char*);
86 extern int utfnlen(char*, long);
87 extern char* utfrune(char*, long);
88 extern char* utfrrune(char*, long);
89 extern char* utfutf(char*, char*);
90 extern char* utfecpy(char*, char*, char*);
91
92 extern Rune* runestrcat(Rune*, Rune*);
93 extern Rune* runestrchr(Rune*, Rune);
94 extern int runestrcmp(Rune*, Rune*);
95 extern Rune* runestrcpy(Rune*, Rune*);
96 extern Rune* runestrncpy(Rune*, Rune*, long);
97 extern Rune* runestrecpy(Rune*, Rune*, Rune*);
98 extern Rune* runestrdup(Rune*);
99 extern Rune* runestrncat(Rune*, Rune*, long);
100 extern int runestrncmp(Rune*, Rune*, long);
101 extern Rune* runestrrchr(Rune*, Rune);
102 extern long runestrlen(Rune*);
103 extern Rune* runestrstr(Rune*, Rune*);
104
105 extern Rune tolowerrune(Rune);
106 extern Rune totitlerune(Rune);
107 extern Rune toupperrune(Rune);
108 extern int isalpharune(Rune);
109 extern int islowerrune(Rune);
110 extern int isspacerune(Rune);
111 extern int istitlerune(Rune);
112 extern int isupperrune(Rune);
113 */
114
115 /*
116 * malloc (provied by system <stdlib.h>)
117 *
118 extern void* malloc(ulong);
119 */
120 extern void* p9malloc(ulong);
121 extern void* mallocz(ulong, int);
122 extern void p9free(void*);
123 extern void* p9calloc(ulong, ulong);
124 extern void* p9realloc(void*, ulong);
125 extern void setmalloctag(void*, ulong);
126 extern void setrealloctag(void*, ulong);
127 extern ulong getmalloctag(void*);
128 extern ulong getrealloctag(void*);
129 /*
130 extern void* malloctopoolblock(void*);
131 */
132 #ifndef NOPLAN9DEFINES
133 #define malloc p9malloc
134 #define realloc p9realloc
135 #define calloc p9calloc
136 #define free p9free
137 #undef strdup
138 #define strdup p9strdup
139 #endif
140
141 /*
142 * print routines (provided by <fmt.h>)
143 *
144 typedef struct Fmt Fmt;
145 struct Fmt{
146 uchar runes;
147 void *start;
148 void *to;
149 void *stop;
150 int (*flush)(Fmt *);
151 void *farg;
152 int nfmt;
153 va_list args;
154 int r;
155 int width;
156 int prec;
157 ulong flags;
158 };
159
160 enum{
161 FmtWidth = 1,
162 FmtLeft = FmtWidth << 1,
163 FmtPrec = FmtLeft << 1,
164 FmtSharp = FmtPrec << 1,
165 FmtSpace = FmtSharp << 1,
166 FmtSign = FmtSpace << 1,
167 FmtZero = FmtSign << 1,
168 FmtUnsigned = FmtZero << 1,
169 FmtShort = FmtUnsigned << 1,
170 FmtLong = FmtShort << 1,
171 FmtVLong = FmtLong << 1,
172 FmtComma = FmtVLong << 1,
173 FmtByte = FmtComma << 1,
174
175 FmtFlag = FmtByte << 1
176 };
177
178 extern int print(char*, ...);
179 extern char* seprint(char*, char*, char*, ...);
180 extern char* vseprint(char*, char*, char*, va_list);
181 extern int snprint(char*, int, char*, ...);
182 extern int vsnprint(char*, int, char*, va_list);
183 extern char* smprint(char*, ...);
184 extern char* vsmprint(char*, va_list);
185 extern int sprint(char*, char*, ...);
186 extern int fprint(int, char*, ...);
187 extern int vfprint(int, char*, va_list);
188
189 extern int runesprint(Rune*, char*, ...);
190 extern int runesnprint(Rune*, int, char*, ...);
191 extern int runevsnprint(Rune*, int, char*, va_list);
192 extern Rune* runeseprint(Rune*, Rune*, char*, ...);
193 extern Rune* runevseprint(Rune*, Rune*, char*, va_list);
194 extern Rune* runesmprint(char*, ...);
195 extern Rune* runevsmprint(char*, va_list);
196
197 extern int fmtfdinit(Fmt*, int, char*, int);
198 extern int fmtfdflush(Fmt*);
199 extern int fmtstrinit(Fmt*);
200 extern char* fmtstrflush(Fmt*);
201 extern int runefmtstrinit(Fmt*);
202 extern Rune* runefmtstrflush(Fmt*);
203
204 extern int fmtinstall(int, int (*)(Fmt*));
205 extern int dofmt(Fmt*, char*);
206 extern int dorfmt(Fmt*, Rune*);
207 extern int fmtprint(Fmt*, char*, ...);
208 extern int fmtvprint(Fmt*, char*, va_list);
209 extern int fmtrune(Fmt*, int);
210 extern int fmtstrcpy(Fmt*, char*);
211 extern int fmtrunestrcpy(Fmt*, Rune*);
212 */
213
214 /*
215 * error string for %r
216 * supplied on per os basis, not part of fmt library
217 *
218 * (provided by lib9, but declared in fmt.h)
219 *
220 extern int errfmt(Fmt *f);
221 */
222
223 /*
224 * quoted strings
225 */
226 extern char *unquotestrdup(char*);
227 extern Rune *unquoterunestrdup(Rune*);
228 extern char *quotestrdup(char*);
229 extern Rune *quoterunestrdup(Rune*);
230 /*
231 * in fmt.h
232 *
233 extern void quotefmtinstall(void);
234 extern int quotestrfmt(Fmt*);
235 extern int quoterunestrfmt(Fmt*);
236 */
237 #ifndef NOPLAN9DEFINES
238 #define doquote fmtdoquote
239 #endif
240 extern int needsrcquote(int);
241
242 /*
243 * random number
244 */
245 extern void p9srand(long);
246 extern int p9rand(void);
247
248 extern int p9nrand(int);
249 extern long p9lrand(void);
250 extern long p9lnrand(long);
251 extern double p9frand(void);
252 extern ulong truerand(void); /* uses /dev/random */
253 extern ulong ntruerand(ulong); /* uses /dev/random */
254
255 #ifndef NOPLAN9DEFINES
256 #define srand p9srand
257 #define rand p9rand
258 #define nrand p9nrand
259 #define lrand p9lrand
260 #define lnrand p9lnrand
261 #define frand p9frand
262 #endif
263
264 /*
265 * math
266 */
267 extern ulong getfcr(void);
268 extern void setfsr(ulong);
269 extern ulong getfsr(void);
270 extern void setfcr(ulong);
271 extern double NaN(void);
272 extern double Inf(int);
273 extern int isNaN(double);
274 extern int isInf(double, int);
275 extern ulong umuldiv(ulong, ulong, ulong);
276 extern long muldiv(long, long, long);
277
278 /*
279 * provided by math.h
280 *
281 extern double pow(double, double);
282 extern double atan2(double, double);
283 extern double fabs(double);
284 extern double atan(double);
285 extern double log(double);
286 extern double log10(double);
287 extern double exp(double);
288 extern double floor(double);
289 extern double ceil(double);
290 extern double hypot(double, double);
291 extern double sin(double);
292 extern double cos(double);
293 extern double tan(double);
294 extern double asin(double);
295 extern double acos(double);
296 extern double sinh(double);
297 extern double cosh(double);
298 extern double tanh(double);
299 extern double sqrt(double);
300 extern double fmod(double, double);
301 #define HUGE 3.4028234e38
302 #define PIO2 1.570796326794896619231e0
303 #define PI (PIO2+PIO2)
304 */
305 #define PI M_PI
306 #define PIO2 M_PI_2
307
308 /*
309 * Time-of-day
310 */
311
312 typedef
313 struct Tm
314 {
315 int sec;
316 int min;
317 int hour;
318 int mday;
319 int mon;
320 int year;
321 int wday;
322 int yday;
323 char zone[4];
324 int tzoff;
325 } Tm;
326
327 extern Tm* p9gmtime(long);
328 extern Tm* p9localtime(long);
329 extern char* p9asctime(Tm*);
330 extern char* p9ctime(long);
331 extern double p9cputime(void);
332 extern long p9times(long*);
333 extern long p9tm2sec(Tm*);
334 extern vlong p9nsec(void);
335
336 #ifndef NOPLAN9DEFINES
337 /* Clear some declarations to avoid conflicts in edge situation.
338 * uClibc based systems have this issue.
339 */
340 #undef gmtime
341 #undef localtime
342 #undef asctime
343 #undef ctime
344 #define gmtime p9gmtime
345 #define localtime p9localtime
346 #define asctime p9asctime
347 #define ctime p9ctime
348 #define cputime p9cputime
349 #define times p9times
350 #define tm2sec p9tm2sec
351 #define nsec p9nsec
352 #endif
353
354 /*
355 * one-of-a-kind
356 */
357 enum
358 {
359 PNPROC = 1,
360 PNGROUP = 2
361 };
362
363 /* extern int abs(int); <stdlib.h> */
364 extern int p9atexit(void(*)(void));
365 extern void p9atexitdont(void(*)(void));
366 extern int atnotify(int(*)(void*, char*), int);
367 /*
368 * <stdlib.h>
369 extern double atof(char*); <stdlib.h>
370 */
371 extern int p9atoi(char*);
372 extern long p9atol(char*);
373 extern vlong p9atoll(char*);
374 extern double fmtcharstod(int(*)(void*), void*);
375 extern char* cleanname(char*);
376 extern int p9decrypt(void*, void*, int);
377 extern int p9encrypt(void*, void*, int);
378 extern int netcrypt(void*, void*);
379 extern int dec64(uchar*, int, char*, int);
380 extern int enc64(char*, int, uchar*, int);
381 extern int dec32(uchar*, int, char*, int);
382 extern int enc32(char*, int, uchar*, int);
383 extern int dec16(uchar*, int, char*, int);
384 extern int enc16(char*, int, uchar*, int);
385 extern int encodefmt(Fmt*);
386 extern int dirmodefmt(Fmt*);
387 extern int exitcode(char*);
388 extern void exits(char*);
389 extern double frexp(double, int*);
390 extern ulong getcallerpc(void*);
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 #define getenv p9getenv
440 #define getwd p9getwd
441 #undef longjmp
442 #define longjmp p9longjmp
443 #undef setjmp
444 #define setjmp p9setjmp
445 #define putenv p9putenv
446 #define notejmp p9notejmp
447 #define jmp_buf p9jmp_buf
448 #define time p9time
449 #define pow10 p9pow10
450 #define strtod fmtstrtod
451 #define charstod fmtcharstod
452 #define syslog p9syslog
453 #endif
454
455 /*
456 * just enough information so that libc can be
457 * properly locked without dragging in all of libthread
458 */
459 typedef struct _Thread _Thread;
460 typedef struct _Threadlist _Threadlist;
461 struct _Threadlist
462 {
463 _Thread *head;
464 _Thread *tail;
465 };
466
467 extern _Thread *(*threadnow)(void);
468
469 /*
470 * synchronization
471 */
472 typedef struct Lock Lock;
473 struct Lock
474 {
475 #ifdef PLAN9PORT_USING_PTHREADS
476 int init;
477 pthread_mutex_t mutex;
478 #endif
479 int held;
480 };
481
482 extern void lock(Lock*);
483 extern void unlock(Lock*);
484 extern int canlock(Lock*);
485 extern int (*_lock)(Lock*, int, ulong);
486 extern void (*_unlock)(Lock*, ulong);
487
488 typedef struct QLock QLock;
489 struct QLock
490 {
491 Lock l;
492 _Thread *owner;
493 _Threadlist waiting;
494 };
495
496 extern void qlock(QLock*);
497 extern void qunlock(QLock*);
498 extern int canqlock(QLock*);
499 extern int (*_qlock)(QLock*, int, ulong); /* do not use */
500 extern void (*_qunlock)(QLock*, ulong);
501
502 typedef struct Rendez Rendez;
503 struct Rendez
504 {
505 QLock *l;
506 _Threadlist waiting;
507 };
508
509 extern void rsleep(Rendez*); /* unlocks r->l, sleeps, locks r->l again */
510 extern int rwakeup(Rendez*);
511 extern int rwakeupall(Rendez*);
512 extern void (*_rsleep)(Rendez*, ulong); /* do not use */
513 extern int (*_rwakeup)(Rendez*, int, ulong);
514
515 typedef struct RWLock RWLock;
516 struct RWLock
517 {
518 Lock l;
519 int readers;
520 _Thread *writer;
521 _Threadlist rwaiting;
522 _Threadlist wwaiting;
523 };
524
525 extern void rlock(RWLock*);
526 extern void runlock(RWLock*);
527 extern int canrlock(RWLock*);
528 extern void wlock(RWLock*);
529 extern void wunlock(RWLock*);
530 extern int canwlock(RWLock*);
531 extern int (*_rlock)(RWLock*, int, ulong); /* do not use */
532 extern int (*_wlock)(RWLock*, int, ulong);
533 extern void (*_runlock)(RWLock*, ulong);
534 extern void (*_wunlock)(RWLock*, ulong);
535
536 /*
537 * per-process private data
538 */
539 extern void** privalloc(void);
540 extern void privfree(void**);
541
542 /*
543 * network dialing
544 */
545 #define NETPATHLEN 40
546 extern int p9accept(int, char*);
547 extern int p9announce(char*, char*);
548 extern int p9dial(char*, char*, char*, int*);
549 extern int p9dialparse(char *ds, char **net, char **unixa, u32int *ip, int *port);
550 extern void p9setnetmtpt(char*, int, char*);
551 extern int p9listen(char*, char*);
552 extern char* p9netmkaddr(char*, char*, char*);
553 extern int p9reject(int, char*, char*);
554
555 #ifndef NOPLAN9DEFINES
556 #define accept p9accept
557 #define announce p9announce
558 #define dial p9dial
559 #define setnetmtpt p9setnetmtpt
560 #define listen p9listen
561 #define netmkaddr p9netmkaddr
562 #define reject p9reject
563 #endif
564
565 /*
566 * encryption
567 */
568 extern int pushssl(int, char*, char*, char*, int*);
569 extern int pushtls(int, char*, char*, int, char*, char*);
570
571 /*
572 * network services
573 */
574 typedef struct NetConnInfo NetConnInfo;
575 struct NetConnInfo
576 {
577 char *dir; /* connection directory */
578 char *root; /* network root */
579 char *spec; /* binding spec */
580 char *lsys; /* local system */
581 char *lserv; /* local service */
582 char *rsys; /* remote system */
583 char *rserv; /* remote service */
584 char *laddr;
585 char *raddr;
586 };
587 extern NetConnInfo* getnetconninfo(char*, int);
588 extern void freenetconninfo(NetConnInfo*);
589
590 /*
591 * system calls
592 *
593 */
594 #define STATMAX 65535U /* max length of machine-independent stat structure */
595 #define DIRMAX (sizeof(Dir)+STATMAX) /* max length of Dir structure */
596 #define ERRMAX 128 /* max length of error string */
597
598 #define MORDER 0x0003 /* mask for bits defining order of mounting */
599 #define MREPL 0x0000 /* mount replaces object */
600 #define MBEFORE 0x0001 /* mount goes before others in union directory */
601 #define MAFTER 0x0002 /* mount goes after others in union directory */
602 #define MCREATE 0x0004 /* permit creation in mounted directory */
603 #define MCACHE 0x0010 /* cache some data */
604 #define MMASK 0x0017 /* all bits on */
605
606 #define OREAD 0 /* open for read */
607 #define OWRITE 1 /* write */
608 #define ORDWR 2 /* read and write */
609 #define OEXEC 3 /* execute, == read but check execute permission */
610 #define OTRUNC 16 /* or'ed in (except for exec), truncate file first */
611 #define OCEXEC 32 /* or'ed in, close on exec */
612 #define ORCLOSE 64 /* or'ed in, remove on close */
613 #define ODIRECT 128 /* or'ed in, direct access */
614 #define ONONBLOCK 256 /* or'ed in, non-blocking call */
615 #define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */
616 #define OLOCK 0x2000 /* or'ed in, lock after opening */
617 #define OAPPEND 0x4000 /* or'ed in, append only */
618
619 #define AEXIST 0 /* accessible: exists */
620 #define AEXEC 1 /* execute access */
621 #define AWRITE 2 /* write access */
622 #define AREAD 4 /* read access */
623
624 /* Segattch */
625 #define SG_RONLY 0040 /* read only */
626 #define SG_CEXEC 0100 /* detach on exec */
627
628 #define NCONT 0 /* continue after note */
629 #define NDFLT 1 /* terminate after note */
630 #define NSAVE 2 /* clear note but hold state */
631 #define NRSTR 3 /* restore saved state */
632
633 /* bits in Qid.type */
634 #define QTDIR 0x80 /* type bit for directories */
635 #define QTAPPEND 0x40 /* type bit for append only files */
636 #define QTEXCL 0x20 /* type bit for exclusive use files */
637 #define QTMOUNT 0x10 /* type bit for mounted channel */
638 #define QTAUTH 0x08 /* type bit for authentication file */
639 #define QTTMP 0x04 /* type bit for non-backed-up file */
640 #define QTSYMLINK 0x02 /* type bit for symbolic link */
641 #define QTFILE 0x00 /* type bits for plain file */
642
643 /* bits in Dir.mode */
644 #define DMDIR 0x80000000 /* mode bit for directories */
645 #define DMAPPEND 0x40000000 /* mode bit for append only files */
646 #define DMEXCL 0x20000000 /* mode bit for exclusive use files */
647 #define DMMOUNT 0x10000000 /* mode bit for mounted channel */
648 #define DMAUTH 0x08000000 /* mode bit for authentication file */
649 #define DMTMP 0x04000000 /* mode bit for non-backed-up file */
650 #define DMSYMLINK 0x02000000 /* mode bit for symbolic link (Unix, 9P2000.u) */
651 #define DMDEVICE 0x00800000 /* mode bit for device file (Unix, 9P2000.u) */
652 #define DMNAMEDPIPE 0x00200000 /* mode bit for named pipe (Unix, 9P2000.u) */
653 #define DMSOCKET 0x00100000 /* mode bit for socket (Unix, 9P2000.u) */
654 #define DMSETUID 0x00080000 /* mode bit for setuid (Unix, 9P2000.u) */
655 #define DMSETGID 0x00040000 /* mode bit for setgid (Unix, 9P2000.u) */
656
657 #define DMREAD 0x4 /* mode bit for read permission */
658 #define DMWRITE 0x2 /* mode bit for write permission */
659 #define DMEXEC 0x1 /* mode bit for execute permission */
660
661 #ifdef RFMEM /* FreeBSD, OpenBSD */
662 #undef RFFDG
663 #undef RFNOTEG
664 #undef RFPROC
665 #undef RFMEM
666 #undef RFNOWAIT
667 #undef RFCFDG
668 #undef RFNAMEG
669 #undef RFENVG
670 #undef RFCENVG
671 #undef RFCFDG
672 #undef RFCNAMEG
673 #endif
674
675 enum
676 {
677 RFNAMEG = (1<<0),
678 RFENVG = (1<<1),
679 RFFDG = (1<<2),
680 RFNOTEG = (1<<3),
681 RFPROC = (1<<4),
682 RFMEM = (1<<5),
683 RFNOWAIT = (1<<6),
684 RFCNAMEG = (1<<10),
685 RFCENVG = (1<<11),
686 RFCFDG = (1<<12)
687 /* RFREND = (1<<13), */
688 /* RFNOMNT = (1<<14) */
689 };
690
691 typedef
692 struct Qid
693 {
694 uvlong path;
695 ulong vers;
696 uchar type;
697 } Qid;
698
699 typedef
700 struct Dir {
701 /* system-modified data */
702 ushort type; /* server type */
703 uint dev; /* server subtype */
704 /* file data */
705 Qid qid; /* unique id from server */
706 ulong mode; /* permissions */
707 ulong atime; /* last read time */
708 ulong mtime; /* last write time */
709 vlong length; /* file length */
710 char *name; /* last element of path */
711 char *uid; /* owner name */
712 char *gid; /* group name */
713 char *muid; /* last modifier name */
714
715 /* 9P2000.u extensions */
716 uint uidnum; /* numeric uid */
717 uint gidnum; /* numeric gid */
718 uint muidnum; /* numeric muid */
719 char *ext; /* extended info */
720 } Dir;
721
722 /* keep /sys/src/ape/lib/ap/plan9/sys9.h in sync with this -rsc */
723 typedef
724 struct Waitmsg
725 {
726 int pid; /* of loved one */
727 ulong time[3]; /* of loved one & descendants */
728 char *msg;
729 } Waitmsg;
730
731 typedef
732 struct IOchunk
733 {
734 void *addr;
735 ulong len;
736 } IOchunk;
737
738 extern void _exits(char*);
739
740 extern void abort(void);
741 /* extern int access(char*, int); */
742 extern long p9alarm(ulong);
743 extern int await(char*, int);
744 extern int awaitfor(int, char*, int);
745 extern int awaitnohang(char*, int);
746 /* extern int bind(char*, char*, int); give up */
747 /* extern int brk(void*); <unistd.h> */
748 extern int p9chdir(char*);
749 extern int close(int);
750 extern int p9create(char*, int, ulong);
751 extern int p9dup(int, int);
752 extern int errstr(char*, uint);
753 extern int p9exec(char*, char*[]);
754 extern int p9execl(char*, ...);
755 /* extern int p9fork(void); */
756 extern int p9rfork(int);
757 /* not implemented
758 extern int fauth(int, char*);
759 extern int fstat(int, uchar*, int);
760 extern int fwstat(int, uchar*, int);
761 extern int fversion(int, int, char*, int);
762 extern int mount(int, int, char*, int, char*);
763 extern int unmount(char*, char*);
764 */
765 extern int noted(int);
766 extern int notify(void(*)(void*, char*));
767 extern int noteenable(char*);
768 extern int notedisable(char*);
769 extern int notifyon(char*);
770 extern int notifyoff(char*);
771 extern int p9open(char*, int);
772 extern int fd2path(int, char*, int);
773 extern int p9pipe(int*);
774 /*
775 * use defs from <unistd.h>
776 extern long pread(int, void*, long, vlong);
777 extern long preadv(int, IOchunk*, int, vlong);
778 extern long pwrite(int, void*, long, vlong);
779 extern long pwritev(int, IOchunk*, int, vlong);
780 extern long read(int, void*, long);
781 */
782 extern long readn(int, void*, long);
783 /* extern long readv(int, IOchunk*, int); <unistd.h> */
784 extern int remove(const char*);
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 #define pipe p9pipe
824 #define waitfor p9waitfor
825 #define write p9write
826 #endif
827
828 extern Dir* dirstat(char*);
829 extern Dir* dirfstat(int);
830 extern int dirwstat(char*, Dir*);
831 extern int dirfwstat(int, Dir*);
832 extern long dirread(int, Dir**);
833 extern void nulldir(Dir*);
834 extern long dirreadall(int, Dir**);
835 /* extern int getpid(void); <unistd.h> */
836 /* extern int getppid(void); */
837 extern void rerrstr(char*, uint);
838 extern char* sysname(void);
839 extern void werrstr(char*, ...);
840 extern char* getns(void);
841 extern char* get9root(void);
842 extern char* unsharp(char*);
843 extern int sendfd(int, int);
844 extern int recvfd(int);
845 extern int post9pservice(int, char*, char*);
846 extern int chattyfuse;
847
848 /* external names that we don't want to step on */
849 #ifndef NOPLAN9DEFINES
850 #define main p9main
851 #endif
852
853 #ifdef VARARGCK
854 #pragma varargck type "lld" vlong
855 #pragma varargck type "llx" vlong
856 #pragma varargck type "lld" uvlong
857 #pragma varargck type "llx" uvlong
858 #pragma varargck type "ld" long
859 #pragma varargck type "lx" long
860 #pragma varargck type "ld" ulong
861 #pragma varargck type "lx" ulong
862 #pragma varargck type "d" int
863 #pragma varargck type "x" int
864 #pragma varargck type "c" int
865 #pragma varargck type "C" int
866 #pragma varargck type "d" uint
867 #pragma varargck type "x" uint
868 #pragma varargck type "c" uint
869 #pragma varargck type "C" uint
870 #pragma varargck type "f" double
871 #pragma varargck type "e" double
872 #pragma varargck type "g" double
873 #pragma varargck type "lf" long double
874 #pragma varargck type "le" long double
875 #pragma varargck type "lg" long double
876 #pragma varargck type "s" char*
877 #pragma varargck type "q" char*
878 #pragma varargck type "S" Rune*
879 #pragma varargck type "Q" Rune*
880 #pragma varargck type "r" void
881 #pragma varargck type "%" void
882 #pragma varargck type "n" int*
883 #pragma varargck type "p" void*
884 #pragma varargck type "<" void*
885 #pragma varargck type "[" void*
886 #pragma varargck type "H" void*
887 #pragma varargck type "lH" void*
888
889 #pragma varargck flag ' '
890 #pragma varargck flag '#'
891 #pragma varargck flag '+'
892 #pragma varargck flag ','
893 #pragma varargck flag '-'
894 #pragma varargck flag 'u'
895
896 #pragma varargck argpos fmtprint 2
897 #pragma varargck argpos fprint 2
898 #pragma varargck argpos print 1
899 #pragma varargck argpos runeseprint 3
900 #pragma varargck argpos runesmprint 1
901 #pragma varargck argpos runesnprint 3
902 #pragma varargck argpos runesprint 2
903 #pragma varargck argpos seprint 3
904 #pragma varargck argpos smprint 1
905 #pragma varargck argpos snprint 3
906 #pragma varargck argpos sprint 2
907 #pragma varargck argpos sysfatal 1
908 #pragma varargck argpos p9syslog 3
909 #pragma varargck argpos werrstr 1
910 #endif
911
912 /* compiler directives on plan 9 */
913 #define SET(x) ((x)=0)
914 #define USED(x) if(x){}else{}
915 #ifdef __GNUC__
916 # if __GNUC__ >= 3
917 # undef USED
918 # define USED(x) ((void)(x))
919 # endif
920 #endif
921
922 /* command line */
923 extern char *argv0;
924 extern void __fixargv0(void);
925 #define ARGBEGIN for((argv0?0:(argv0=(__fixargv0(),*argv))),argv++,argc--;\
926 argv[0] && argv[0][0]=='-' && argv[0][1];\
927 argc--, argv++) {\
928 char *_args, *_argt;\
929 Rune _argc;\
930 _args = &argv[0][1];\
931 if(_args[0]=='-' && _args[1]==0){\
932 argc--; argv++; break;\
933 }\
934 _argc = 0;\
935 while(*_args && (_args += chartorune(&_argc, _args)))\
936 switch(_argc)
937 #define ARGEND SET(_argt);USED(_argt);USED(_argc);USED(_args);}USED(argv);USED(argc);
938 #define ARGF() (_argt=_args, _args="",\
939 (*_argt? _argt: argv[1]? (argc--, *++argv): 0))
940 #define EARGF(x) (_argt=_args, _args="",\
941 (*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0)))
942
943 #define ARGC() _argc
944
945 #if defined(__cplusplus)
946 }
947 #endif
948 #endif /* _LIB9_H_ */