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plan9port/include/libc.h

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// This file originated as Plan 9's /sys/include/libc.h.
// The plan9port-specific changes may be distributed
// using the license in ../src/lib9/LICENSE.
/*
* Lib9 is miscellany from the Plan 9 C library that doesn't
* fit into libutf or into libfmt, but is still missing from traditional
* Unix C libraries.
*/
#ifndef _LIBC_H_
#define _LIBC_H_ 1
#if defined(__cplusplus)
extern "C" {
#endif
#include <utf.h>
#include <fmt.h>
/*
* Begin usual libc.h
*/
#ifndef nil
#define nil ((void*)0)
#endif
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
#ifndef offsetof
#define offsetof(s, m) (ulong)(&(((s*)0)->m))
#endif
/*
* mem routines (provided by system <string.h>)
*
extern void* memccpy(void*, void*, int, ulong);
extern void* memset(void*, int, ulong);
extern int memcmp(void*, void*, ulong);
extern void* memcpy(void*, void*, ulong);
extern void* memmove(void*, void*, ulong);
extern void* memchr(void*, int, ulong);
*/
/*
* string routines (provided by system <string.h>)
*
extern char* strcat(char*, char*);
extern char* strchr(char*, int);
extern int strcmp(char*, char*);
extern char* strcpy(char*, char*);
*/
extern char* strecpy(char*, char*, char*);
extern char* p9strdup(char*);
/*
extern char* strncat(char*, char*, long);
extern char* strncpy(char*, char*, long);
extern int strncmp(char*, char*, long);
extern char* strpbrk(char*, char*);
extern char* strrchr(char*, int);
extern char* strtok(char*, char*);
extern long strlen(char*);
extern long strspn(char*, char*);
extern long strcspn(char*, char*);
extern char* strstr(char*, char*);
*/
extern int cistrncmp(char*, char*, int);
extern int cistrcmp(char*, char*);
extern char* cistrstr(char*, char*);
extern int tokenize(char*, char**, int);
/*
enum
{
UTFmax = 4,
Runesync = 0x80,
Runeself = 0x80,
Runeerror = 0xFFFD,
Runemax = 0x10FFFF,
};
*/
/*
* rune routines (provided by <utf.h>
*
extern int runetochar(char*, Rune*);
extern int chartorune(Rune*, char*);
extern int runelen(long);
extern int runenlen(Rune*, int);
extern int fullrune(char*, int);
extern int utflen(char*);
extern int utfnlen(char*, long);
extern char* utfrune(char*, long);
extern char* utfrrune(char*, long);
extern char* utfutf(char*, char*);
extern char* utfecpy(char*, char*, char*);
extern Rune* runestrcat(Rune*, Rune*);
extern Rune* runestrchr(Rune*, Rune);
extern int runestrcmp(Rune*, Rune*);
extern Rune* runestrcpy(Rune*, Rune*);
extern Rune* runestrncpy(Rune*, Rune*, long);
extern Rune* runestrecpy(Rune*, Rune*, Rune*);
extern Rune* runestrdup(Rune*);
extern Rune* runestrncat(Rune*, Rune*, long);
extern int runestrncmp(Rune*, Rune*, long);
extern Rune* runestrrchr(Rune*, Rune);
extern long runestrlen(Rune*);
extern Rune* runestrstr(Rune*, Rune*);
extern Rune tolowerrune(Rune);
extern Rune totitlerune(Rune);
extern Rune toupperrune(Rune);
extern int isalpharune(Rune);
extern int islowerrune(Rune);
extern int isspacerune(Rune);
extern int istitlerune(Rune);
extern int isupperrune(Rune);
*/
/*
* malloc (provied by system <stdlib.h>)
*
extern void* malloc(ulong);
*/
extern void* p9malloc(ulong);
extern void* mallocz(ulong, int);
extern void p9free(void*);
extern void* p9calloc(ulong, ulong);
extern void* p9realloc(void*, ulong);
extern void setmalloctag(void*, ulong);
extern void setrealloctag(void*, ulong);
extern ulong getmalloctag(void*);
extern ulong getrealloctag(void*);
/*
extern void* malloctopoolblock(void*);
*/
#ifndef NOPLAN9DEFINES
#define malloc p9malloc
#define realloc p9realloc
#define calloc p9calloc
#define free p9free
#undef strdup
#define strdup p9strdup
#endif
/*
* print routines (provided by <fmt.h>)
*
typedef struct Fmt Fmt;
struct Fmt{
uchar runes;
void *start;
void *to;
void *stop;
int (*flush)(Fmt *);
void *farg;
int nfmt;
va_list args;
int r;
int width;
int prec;
ulong flags;
};
enum{
FmtWidth = 1,
FmtLeft = FmtWidth << 1,
FmtPrec = FmtLeft << 1,
FmtSharp = FmtPrec << 1,
FmtSpace = FmtSharp << 1,
FmtSign = FmtSpace << 1,
FmtZero = FmtSign << 1,
FmtUnsigned = FmtZero << 1,
FmtShort = FmtUnsigned << 1,
FmtLong = FmtShort << 1,
FmtVLong = FmtLong << 1,
FmtComma = FmtVLong << 1,
FmtByte = FmtComma << 1,
FmtFlag = FmtByte << 1
};
extern int print(char*, ...);
extern char* seprint(char*, char*, char*, ...);
extern char* vseprint(char*, char*, char*, va_list);
extern int snprint(char*, int, char*, ...);
extern int vsnprint(char*, int, char*, va_list);
extern char* smprint(char*, ...);
extern char* vsmprint(char*, va_list);
extern int sprint(char*, char*, ...);
extern int fprint(int, char*, ...);
extern int vfprint(int, char*, va_list);
extern int runesprint(Rune*, char*, ...);
extern int runesnprint(Rune*, int, char*, ...);
extern int runevsnprint(Rune*, int, char*, va_list);
extern Rune* runeseprint(Rune*, Rune*, char*, ...);
extern Rune* runevseprint(Rune*, Rune*, char*, va_list);
extern Rune* runesmprint(char*, ...);
extern Rune* runevsmprint(char*, va_list);
extern int fmtfdinit(Fmt*, int, char*, int);
extern int fmtfdflush(Fmt*);
extern int fmtstrinit(Fmt*);
extern char* fmtstrflush(Fmt*);
extern int runefmtstrinit(Fmt*);
extern Rune* runefmtstrflush(Fmt*);
extern int fmtinstall(int, int (*)(Fmt*));
extern int dofmt(Fmt*, char*);
extern int dorfmt(Fmt*, Rune*);
extern int fmtprint(Fmt*, char*, ...);
extern int fmtvprint(Fmt*, char*, va_list);
extern int fmtrune(Fmt*, int);
extern int fmtstrcpy(Fmt*, char*);
extern int fmtrunestrcpy(Fmt*, Rune*);
*/
/*
* error string for %r
* supplied on per os basis, not part of fmt library
*
* (provided by lib9, but declared in fmt.h)
*
extern int errfmt(Fmt *f);
*/
/*
* quoted strings
*/
extern char *unquotestrdup(char*);
extern Rune *unquoterunestrdup(Rune*);
extern char *quotestrdup(char*);
extern Rune *quoterunestrdup(Rune*);
/*
* in fmt.h
*
extern void quotefmtinstall(void);
extern int quotestrfmt(Fmt*);
extern int quoterunestrfmt(Fmt*);
*/
#ifndef NOPLAN9DEFINES
#define doquote fmtdoquote
#endif
extern int needsrcquote(int);
/*
* random number
*/
extern void p9srand(long);
extern int p9rand(void);
extern int p9nrand(int);
extern long p9lrand(void);
extern long p9lnrand(long);
extern double p9frand(void);
extern ulong truerand(void); /* uses /dev/random */
extern ulong ntruerand(ulong); /* uses /dev/random */
#ifndef NOPLAN9DEFINES
#define srand p9srand
#define rand p9rand
#define nrand p9nrand
#define lrand p9lrand
#define lnrand p9lnrand
#define frand p9frand
#endif
/*
* math
*/
extern ulong getfcr(void);
extern void setfsr(ulong);
extern ulong getfsr(void);
extern void setfcr(ulong);
extern double NaN(void);
extern double Inf(int);
extern int isNaN(double);
extern int isInf(double, int);
extern ulong umuldiv(ulong, ulong, ulong);
extern long muldiv(long, long, long);
/*
* provided by math.h
*
extern double pow(double, double);
extern double atan2(double, double);
extern double fabs(double);
extern double atan(double);
extern double log(double);
extern double log10(double);
extern double exp(double);
extern double floor(double);
extern double ceil(double);
extern double hypot(double, double);
extern double sin(double);
extern double cos(double);
extern double tan(double);
extern double asin(double);
extern double acos(double);
extern double sinh(double);
extern double cosh(double);
extern double tanh(double);
extern double sqrt(double);
extern double fmod(double, double);
#define HUGE 3.4028234e38
#define PIO2 1.570796326794896619231e0
#define PI (PIO2+PIO2)
*/
#define PI M_PI
#define PIO2 M_PI_2
/*
* Time-of-day
*/
typedef
struct Tm
{
int sec;
int min;
int hour;
int mday;
int mon;
int year;
int wday;
int yday;
char zone[4];
int tzoff;
} Tm;
extern Tm* p9gmtime(long);
extern Tm* p9localtime(long);
extern char* p9asctime(Tm*);
extern char* p9ctime(long);
extern double p9cputime(void);
extern long p9times(long*);
extern long p9tm2sec(Tm*);
extern vlong p9nsec(void);
#ifndef NOPLAN9DEFINES
#define gmtime p9gmtime
#define localtime p9localtime
#define asctime p9asctime
#define ctime p9ctime
#define cputime p9cputime
#define times p9times
#define tm2sec p9tm2sec
#define nsec p9nsec
#endif
/*
* one-of-a-kind
*/
enum
{
PNPROC = 1,
PNGROUP = 2
};
/* extern int abs(int); <stdlib.h> */
extern int p9atexit(void(*)(void));
extern void p9atexitdont(void(*)(void));
extern int atnotify(int(*)(void*, char*), int);
/*
* <stdlib.h>
extern double atof(char*); <stdlib.h>
*/
extern int p9atoi(char*);
extern long p9atol(char*);
extern vlong p9atoll(char*);
extern double fmtcharstod(int(*)(void*), void*);
extern char* cleanname(char*);
extern int p9decrypt(void*, void*, int);
extern int p9encrypt(void*, void*, int);
extern int netcrypt(void*, void*);
extern int dec64(uchar*, int, char*, int);
extern int enc64(char*, int, uchar*, int);
extern int dec32(uchar*, int, char*, int);
extern int enc32(char*, int, uchar*, int);
extern int dec16(uchar*, int, char*, int);
extern int enc16(char*, int, uchar*, int);
extern int encodefmt(Fmt*);
extern int dirmodefmt(Fmt*);
extern int exitcode(char*);
extern void exits(char*);
extern double frexp(double, int*);
extern ulong getcallerpc(void*);
extern char* p9getenv(char*);
extern int p9putenv(char*, char*);
extern int getfields(char*, char**, int, int, char*);
extern int gettokens(char *, char **, int, char *);
extern char* getuser(void);
extern char* p9getwd(char*, int);
extern int iounit(int);
/* extern long labs(long); <math.h> */
/* extern double ldexp(double, int); <math.h> */
extern void p9longjmp(p9jmp_buf, int);
extern char* mktemp(char*);
extern int opentemp(char*, int);
/* extern double modf(double, double*); <math.h> */
extern void p9notejmp(void*, p9jmp_buf, int);
extern void perror(const char*);
extern int postnote(int, int, char *);
extern double p9pow10(int);
/* extern int putenv(char*, char*); <stdlib.h. */
/* extern void qsort(void*, long, long, int (*)(void*, void*)); <stdlib.h> */
extern char* searchpath(char*);
/* extern int p9setjmp(p9jmp_buf); */
#define p9setjmp(b) sigsetjmp((void*)(b), 1)
/*
* <stdlib.h>
extern long strtol(char*, char**, int);
extern ulong strtoul(char*, char**, int);
extern vlong strtoll(char*, char**, int);
extern uvlong strtoull(char*, char**, int);
*/
extern void sysfatal(char*, ...);
extern void p9syslog(int, char*, char*, ...);
extern long p9time(long*);
/* extern int tolower(int); <ctype.h> */
/* extern int toupper(int); <ctype.h> */
extern void needstack(int);
extern char* readcons(char*, char*, int);
extern void (*_pin)(void);
extern void (*_unpin)(void);
#ifndef NOPLAN9DEFINES
#define atexit p9atexit
#define atexitdont p9atexitdont
#define atoi p9atoi
#define atol p9atol
#define atoll p9atoll
#define encrypt p9encrypt
#define decrypt p9decrypt
#define getenv p9getenv
#define getwd p9getwd
#define longjmp p9longjmp
#undef setjmp
#define setjmp p9setjmp
#define putenv p9putenv
#define notejmp p9notejmp
#define jmp_buf p9jmp_buf
#define time p9time
#define pow10 p9pow10
#define strtod fmtstrtod
#define charstod fmtcharstod
#define syslog p9syslog
#endif
/*
* just enough information so that libc can be
* properly locked without dragging in all of libthread
*/
typedef struct _Thread _Thread;
typedef struct _Threadlist _Threadlist;
struct _Threadlist
{
_Thread *head;
_Thread *tail;
};
extern _Thread *(*threadnow)(void);
/*
* synchronization
*/
typedef struct Lock Lock;
struct Lock
{
#ifdef PLAN9PORT_USING_PTHREADS
int init;
pthread_mutex_t mutex;
#endif
int held;
};
extern void lock(Lock*);
extern void unlock(Lock*);
extern int canlock(Lock*);
extern int (*_lock)(Lock*, int, ulong);
extern void (*_unlock)(Lock*, ulong);
typedef struct QLock QLock;
struct QLock
{
Lock l;
_Thread *owner;
_Threadlist waiting;
};
extern void qlock(QLock*);
extern void qunlock(QLock*);
extern int canqlock(QLock*);
extern int (*_qlock)(QLock*, int, ulong); /* do not use */
extern void (*_qunlock)(QLock*, ulong);
typedef struct Rendez Rendez;
struct Rendez
{
QLock *l;
_Threadlist waiting;
};
extern void rsleep(Rendez*); /* unlocks r->l, sleeps, locks r->l again */
extern int rwakeup(Rendez*);
extern int rwakeupall(Rendez*);
extern void (*_rsleep)(Rendez*, ulong); /* do not use */
extern int (*_rwakeup)(Rendez*, int, ulong);
typedef struct RWLock RWLock;
struct RWLock
{
Lock l;
int readers;
_Thread *writer;
_Threadlist rwaiting;
_Threadlist wwaiting;
};
extern void rlock(RWLock*);
extern void runlock(RWLock*);
extern int canrlock(RWLock*);
extern void wlock(RWLock*);
extern void wunlock(RWLock*);
extern int canwlock(RWLock*);
extern int (*_rlock)(RWLock*, int, ulong); /* do not use */
extern int (*_wlock)(RWLock*, int, ulong);
extern void (*_runlock)(RWLock*, ulong);
extern void (*_wunlock)(RWLock*, ulong);
/*
* per-process private data
*/
extern void** privalloc(void);
extern void privfree(void**);
/*
* network dialing
*/
#define NETPATHLEN 40
extern int p9accept(int, char*);
extern int p9announce(char*, char*);
extern int p9dial(char*, char*, char*, int*);
extern int p9dialparse(char *ds, char **net, char **unixa, u32int *ip, int *port);
extern void p9setnetmtpt(char*, int, char*);
extern int p9listen(char*, char*);
extern char* p9netmkaddr(char*, char*, char*);
extern int p9reject(int, char*, char*);
#ifndef NOPLAN9DEFINES
#define accept p9accept
#define announce p9announce
#define dial p9dial
#define setnetmtpt p9setnetmtpt
#define listen p9listen
#define netmkaddr p9netmkaddr
#define reject p9reject
#endif
/*
* encryption
*/
extern int pushssl(int, char*, char*, char*, int*);
extern int pushtls(int, char*, char*, int, char*, char*);
/*
* network services
*/
typedef struct NetConnInfo NetConnInfo;
struct NetConnInfo
{
char *dir; /* connection directory */
char *root; /* network root */
char *spec; /* binding spec */
char *lsys; /* local system */
char *lserv; /* local service */
char *rsys; /* remote system */
char *rserv; /* remote service */
char *laddr;
char *raddr;
};
extern NetConnInfo* getnetconninfo(char*, int);
extern void freenetconninfo(NetConnInfo*);
/*
* system calls
*
*/
#define STATMAX 65535U /* max length of machine-independent stat structure */
#define DIRMAX (sizeof(Dir)+STATMAX) /* max length of Dir structure */
#define ERRMAX 128 /* max length of error string */
#define MORDER 0x0003 /* mask for bits defining order of mounting */
#define MREPL 0x0000 /* mount replaces object */
#define MBEFORE 0x0001 /* mount goes before others in union directory */
#define MAFTER 0x0002 /* mount goes after others in union directory */
#define MCREATE 0x0004 /* permit creation in mounted directory */
#define MCACHE 0x0010 /* cache some data */
#define MMASK 0x0017 /* all bits on */
#define OREAD 0 /* open for read */
#define OWRITE 1 /* write */
#define ORDWR 2 /* read and write */
#define OEXEC 3 /* execute, == read but check execute permission */
#define OTRUNC 16 /* or'ed in (except for exec), truncate file first */
#define OCEXEC 32 /* or'ed in, close on exec */
#define ORCLOSE 64 /* or'ed in, remove on close */
#define ODIRECT 128 /* or'ed in, direct access */
#define ONONBLOCK 256 /* or'ed in, non-blocking call */
#define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */
#define OLOCK 0x2000 /* or'ed in, lock after opening */
#define OAPPEND 0x4000 /* or'ed in, append only */
#define AEXIST 0 /* accessible: exists */
#define AEXEC 1 /* execute access */
#define AWRITE 2 /* write access */
#define AREAD 4 /* read access */
/* Segattch */
#define SG_RONLY 0040 /* read only */
#define SG_CEXEC 0100 /* detach on exec */
#define NCONT 0 /* continue after note */
#define NDFLT 1 /* terminate after note */
#define NSAVE 2 /* clear note but hold state */
#define NRSTR 3 /* restore saved state */
/* bits in Qid.type */
#define QTDIR 0x80 /* type bit for directories */
#define QTAPPEND 0x40 /* type bit for append only files */
#define QTEXCL 0x20 /* type bit for exclusive use files */
#define QTMOUNT 0x10 /* type bit for mounted channel */
#define QTAUTH 0x08 /* type bit for authentication file */
#define QTTMP 0x04 /* type bit for non-backed-up file */
#define QTSYMLINK 0x02 /* type bit for symbolic link */
#define QTFILE 0x00 /* type bits for plain file */
/* bits in Dir.mode */
#define DMDIR 0x80000000 /* mode bit for directories */
#define DMAPPEND 0x40000000 /* mode bit for append only files */
#define DMEXCL 0x20000000 /* mode bit for exclusive use files */
#define DMMOUNT 0x10000000 /* mode bit for mounted channel */
#define DMAUTH 0x08000000 /* mode bit for authentication file */
#define DMTMP 0x04000000 /* mode bit for non-backed-up file */
#define DMSYMLINK 0x02000000 /* mode bit for symbolic link (Unix, 9P2000.u) */
#define DMDEVICE 0x00800000 /* mode bit for device file (Unix, 9P2000.u) */
#define DMNAMEDPIPE 0x00200000 /* mode bit for named pipe (Unix, 9P2000.u) */
#define DMSOCKET 0x00100000 /* mode bit for socket (Unix, 9P2000.u) */
#define DMSETUID 0x00080000 /* mode bit for setuid (Unix, 9P2000.u) */
#define DMSETGID 0x00040000 /* mode bit for setgid (Unix, 9P2000.u) */
#define DMREAD 0x4 /* mode bit for read permission */
#define DMWRITE 0x2 /* mode bit for write permission */
#define DMEXEC 0x1 /* mode bit for execute permission */
#ifdef RFMEM /* FreeBSD, OpenBSD */
#undef RFFDG
#undef RFNOTEG
#undef RFPROC
#undef RFMEM
#undef RFNOWAIT
#undef RFCFDG
#undef RFNAMEG
#undef RFENVG
#undef RFCENVG
#undef RFCFDG
#undef RFCNAMEG
#endif
enum
{
RFNAMEG = (1<<0),
RFENVG = (1<<1),
RFFDG = (1<<2),
RFNOTEG = (1<<3),
RFPROC = (1<<4),
RFMEM = (1<<5),
RFNOWAIT = (1<<6),
RFCNAMEG = (1<<10),
RFCENVG = (1<<11),
RFCFDG = (1<<12)
/* RFREND = (1<<13), */
/* RFNOMNT = (1<<14) */
};
typedef
struct Qid
{
uvlong path;
ulong vers;
uchar type;
} Qid;
typedef
struct Dir {
/* system-modified data */
ushort type; /* server type */
uint dev; /* server subtype */
/* file data */
Qid qid; /* unique id from server */
ulong mode; /* permissions */
ulong atime; /* last read time */
ulong mtime; /* last write time */
vlong length; /* file length */
char *name; /* last element of path */
char *uid; /* owner name */
char *gid; /* group name */
char *muid; /* last modifier name */
/* 9P2000.u extensions */
uint uidnum; /* numeric uid */
uint gidnum; /* numeric gid */
uint muidnum; /* numeric muid */
char *ext; /* extended info */
} Dir;
/* keep /sys/src/ape/lib/ap/plan9/sys9.h in sync with this -rsc */
typedef
struct Waitmsg
{
int pid; /* of loved one */
ulong time[3]; /* of loved one & descendants */
char *msg;
} Waitmsg;
typedef
struct IOchunk
{
void *addr;
ulong len;
} IOchunk;
extern void _exits(char*);
extern void abort(void);
/* extern int access(char*, int); */
extern long p9alarm(ulong);
extern int await(char*, int);
extern int awaitfor(int, char*, int);
extern int awaitnohang(char*, int);
/* extern int bind(char*, char*, int); give up */
/* extern int brk(void*); <unistd.h> */
extern int p9chdir(char*);
extern int close(int);
extern int p9create(char*, int, ulong);
extern int p9dup(int, int);
extern int errstr(char*, uint);
extern int p9exec(char*, char*[]);
extern int p9execl(char*, ...);
/* extern int p9fork(void); */
extern int p9rfork(int);
/* not implemented
extern int fauth(int, char*);
extern int fstat(int, uchar*, int);
extern int fwstat(int, uchar*, int);
extern int fversion(int, int, char*, int);
extern int mount(int, int, char*, int, char*);
extern int unmount(char*, char*);
*/
extern int noted(int);
extern int notify(void(*)(void*, char*));
extern int noteenable(char*);
extern int notedisable(char*);
extern int notifyon(char*);
extern int notifyoff(char*);
extern int p9open(char*, int);
extern int fd2path(int, char*, int);
extern int p9pipe(int*);
/*
* use defs from <unistd.h>
extern long pread(int, void*, long, vlong);
extern long preadv(int, IOchunk*, int, vlong);
extern long pwrite(int, void*, long, vlong);
extern long pwritev(int, IOchunk*, int, vlong);
extern long read(int, void*, long);
*/
extern long readn(int, void*, long);
/* extern long readv(int, IOchunk*, int); <unistd.h> */
extern int remove(const char*);
/* extern void* sbrk(ulong); <unistd.h> */
/* extern long oseek(int, long, int); */
extern vlong p9seek(int, vlong, int);
/* give up
extern long segattach(int, char*, void*, ulong);
extern int segbrk(void*, void*);
extern int segdetach(void*);
extern int segflush(void*, ulong);
extern int segfree(void*, ulong);
*/
extern int p9sleep(long);
/* extern int stat(char*, uchar*, int); give up */
extern Waitmsg* p9wait(void);
extern Waitmsg* p9waitfor(int);
extern Waitmsg* waitnohang(void);
extern int p9waitpid(void);
/* <unistd.h>
extern long write(int, void*, long);
extern long writev(int, IOchunk*, int);
*/
extern long p9write(int, void*, long);
/* extern int wstat(char*, uchar*, int); give up */
extern ulong rendezvous(ulong, ulong);
#ifndef NOPLAN9DEFINES
#define alarm p9alarm
#define dup p9dup
#define exec p9exec
#define execl p9execl
#define seek p9seek
#define sleep p9sleep
#define wait p9wait
#define waitpid p9waitpid
/* #define fork p9fork */
#define rfork p9rfork
/* #define access p9access */
#define create p9create
#undef open
#define open p9open
#define pipe p9pipe
#define waitfor p9waitfor
#define write p9write
#endif
extern Dir* dirstat(char*);
extern Dir* dirfstat(int);
extern int dirwstat(char*, Dir*);
extern int dirfwstat(int, Dir*);
extern long dirread(int, Dir**);
extern void nulldir(Dir*);
extern long dirreadall(int, Dir**);
/* extern int getpid(void); <unistd.h> */
/* extern int getppid(void); */
extern void rerrstr(char*, uint);
extern char* sysname(void);
extern void werrstr(char*, ...);
extern char* getns(void);
extern char* get9root(void);
extern char* unsharp(char*);
extern int sendfd(int, int);
extern int recvfd(int);
extern int post9pservice(int, char*, char*);
extern int chattyfuse;
/* external names that we don't want to step on */
#ifndef NOPLAN9DEFINES
#define main p9main
#endif
#ifdef VARARGCK
#pragma varargck type "lld" vlong
#pragma varargck type "llx" vlong
#pragma varargck type "lld" uvlong
#pragma varargck type "llx" uvlong
#pragma varargck type "ld" long
#pragma varargck type "lx" long
#pragma varargck type "ld" ulong
#pragma varargck type "lx" ulong
#pragma varargck type "d" int
#pragma varargck type "x" int
#pragma varargck type "c" int
#pragma varargck type "C" int
#pragma varargck type "d" uint
#pragma varargck type "x" uint
#pragma varargck type "c" uint
#pragma varargck type "C" uint
#pragma varargck type "f" double
#pragma varargck type "e" double
#pragma varargck type "g" double
#pragma varargck type "lf" long double
#pragma varargck type "le" long double
#pragma varargck type "lg" long double
#pragma varargck type "s" char*
#pragma varargck type "q" char*
#pragma varargck type "S" Rune*
#pragma varargck type "Q" Rune*
#pragma varargck type "r" void
#pragma varargck type "%" void
#pragma varargck type "n" int*
#pragma varargck type "p" void*
#pragma varargck type "<" void*
#pragma varargck type "[" void*
#pragma varargck type "H" void*
#pragma varargck type "lH" void*
#pragma varargck flag ' '
#pragma varargck flag '#'
#pragma varargck flag '+'
#pragma varargck flag ','
#pragma varargck flag '-'
#pragma varargck flag 'u'
#pragma varargck argpos fmtprint 2
#pragma varargck argpos fprint 2
#pragma varargck argpos print 1
#pragma varargck argpos runeseprint 3
#pragma varargck argpos runesmprint 1
#pragma varargck argpos runesnprint 3
#pragma varargck argpos runesprint 2
#pragma varargck argpos seprint 3
#pragma varargck argpos smprint 1
#pragma varargck argpos snprint 3
#pragma varargck argpos sprint 2
#pragma varargck argpos sysfatal 1
#pragma varargck argpos p9syslog 3
#pragma varargck argpos werrstr 1
#endif
/* compiler directives on plan 9 */
#define SET(x) ((x)=0)
#define USED(x) if(x){}else{}
#ifdef __GNUC__
# if __GNUC__ >= 3
# undef USED
# define USED(x) ((void)(x))
# endif
#endif
/* command line */
extern char *argv0;
extern void __fixargv0(void);
#define ARGBEGIN for((argv0?0:(argv0=(__fixargv0(),*argv))),argv++,argc--;\
argv[0] && argv[0][0]=='-' && argv[0][1];\
argc--, argv++) {\
char *_args, *_argt;\
Rune _argc;\
_args = &argv[0][1];\
if(_args[0]=='-' && _args[1]==0){\
argc--; argv++; break;\
}\
_argc = 0;\
while(*_args && (_args += chartorune(&_argc, _args)))\
switch(_argc)
#define ARGEND SET(_argt);USED(_argt);USED(_argc);USED(_args);}USED(argv);USED(argc);
#define ARGF() (_argt=_args, _args="",\
(*_argt? _argt: argv[1]? (argc--, *++argv): 0))
#define EARGF(x) (_argt=_args, _args="",\
(*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0)))
#define ARGC() _argc
#if defined(__cplusplus)
}
#endif
#endif /* _LIB9_H_ */
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