#pragma lib     "libc.a"

/*
* mem routines
*/
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
*/
extern  char*   strcat(char*, char*);
extern  char*   strchr(char*, char);
extern  int     strcmp(char*, char*);
extern  char*   strcpy(char*, char*);
extern  char*   strdup(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*, char);
extern  char*   strtok(char*, char*);
extern  long    strlen(char*);
extern  long    strspn(char*, char*);
extern  long    strcspn(char*, char*);
extern  char*   strstr(char*, char*);

enum
{
       UTFmax          = 3,            /* maximum bytes per rune */
       Runesync        = 0x80,         /* cannot represent part of a UTF sequence (<) */
       Runeself        = 0x80,         /* rune and UTF sequences are the same (<) */
       Runeerror       = 0x80,         /* decoding error in UTF */
};

/*
* new rune routines
*/
extern  int     runetochar(char*, Rune*);
extern  int     chartorune(Rune*, char*);
extern  int     runelen(long);
extern  int     fullrune(char*, int);

/*
* rune routines from converted str routines
*/
extern  int     utflen(char*);
extern  char*   utfrune(char*, long);
extern  char*   utfrrune(char*, long);
extern  char*   utfutf(char*, char*);

/*
* malloc
*/
extern  void*   malloc(long);
extern  void    free(void*);
extern  void*   calloc(long, long);
extern  void*   realloc(void*, long);

/*
* print routines
*/
typedef struct  Fconv   Fconv;
struct  Fconv
{
       char*   out;            /* pointer to next output */
       char*   eout;           /* pointer to end */
       int     f1;
       int     f2;
       int     f3;
       int     chr;
};
extern  char*   doprint(char*, char*, char*, void*);
extern  int     print(char*, ...);
extern  int     snprint(char*, int, char*, ...);
extern  int     sprint(char*, char*, ...);
extern  int     fprint(int, char*, ...);

extern  int     fmtinstall(int, int (*)(void*, Fconv*));
extern  int     numbconv(void*, Fconv*);
extern  void    strconv(char*, Fconv*);
extern  int     fltconv(void*, Fconv*);
/*
* random number
*/
extern  void    srand(long);
extern  int     rand(void);
extern  int     nrand(int);
extern  long    lrand(void);
extern  long    lnrand(long);
extern  double  frand(void);

/*
* 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  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  erf(double);
extern  double  erfc(double);
extern  double  floor(double);
extern  double  ceil(double);
extern  double  gamma(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)

/*
* 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];
} Tm;

extern  Tm*     gmtime(long);
extern  Tm*     localtime(long);
extern  char*   asctime(Tm*);
extern  char*   ctime(long);
extern  double  cputime(void);
extern  long    times(long*);

/*
* one-of-a-kind
*/
#define DESKEYLEN       7               /* length of a des key for encrypt/decrypt */

extern  int     abs(int);
extern  int     atexit(void(*)(void));
extern  void    atexitdont(void(*)(void));
extern  int     atnotify(int(*)(void*, char*), int);
extern  double  atof(char*);
extern  int     atoi(char*);
extern  long    atol(char*);
extern  double  charstod(int(*)(void*), void*);
extern  int     decrypt(void*, void*, int);
extern  int     encrypt(void*, void*, int);
extern  void    exits(char*);
extern  double  frexp(double, int*);
extern  char*   getenv(char*);
extern  int     getfields(char*, char**, int);
extern  int     getmfields(char*, char**, int);
extern  char*   getuser(void);
extern  char*   getwd(char*, int);
extern  long    labs(long);
extern  double  ldexp(double, int);
extern  void    longjmp(jmp_buf, int);
extern  char*   mktemp(char*);
extern  double  modf(double, double*);
extern  int     netcrypt(void*, void*);
extern  void    notejmp(void*, jmp_buf, int);
extern  void    perror(char*);
extern  int     postnote(int, char *);
extern  double  pow10(int);
extern  int     putenv(char*, char*);
extern  void    qsort(void*, long, long, int (*)(void*, void*));
extern  char*   setfields(char*);
extern  int     setjmp(jmp_buf);
extern  double  strtod(char*, char**);
extern  long    strtol(char*, char**, int);
extern  ulong   strtoul(char*, char**, int);
extern  void    syslog(int, char*, char*, ...);
extern  long    time(long*);
extern  int     tolower(int);
extern  int     toupper(int);


/*
*  network dialing and authentication
*/
#define NETPATHLEN 40
extern  int     accept(int, char*);
extern  int     announce(char*, char*);
extern  int     dial(char*, char*, char*, int*);
extern  int     hangup(int);
extern  int     listen(char*, char*);
extern  char*   netmkaddr(char*, char*, char*);
extern  int     reject(int, char*, char*);

/*
* system calls
*
*/
#define NAMELEN 28      /* length of path element, including '\0' */
#define DIRLEN  116     /* length of machine-independent Dir structure */
#define ERRLEN  64      /* 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 MMASK   0x0007  /* 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 NCONT   0       /* continue after note */
#define NDFLT   1       /* terminate after note */

#define CHDIR           0x80000000      /* mode bit for directories */
#define CHAPPEND        0x40000000      /* mode bit for append only files */
#define CHEXCL          0x20000000      /* mode bit for exclusive use files */
#define CHREAD          0x4             /* mode bit for read permission */
#define CHWRITE         0x2             /* mode bit for write permission */
#define CHEXEC          0x1             /* mode bit for execute permission */

/* rfork */
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)
};

typedef
struct Qid
{
       ulong   path;
       ulong   vers;
} Qid;

typedef
struct Dir
{
       char    name[NAMELEN];
       char    uid[NAMELEN];
       char    gid[NAMELEN];
       Qid     qid;
       ulong   mode;
       int     atime;
       int     mtime;
       Length;
       ushort  type;
       ushort  dev;
} Dir;

typedef
struct Waitmsg
{
       char    pid[12];        /* of loved one */
       char    time[3*12];     /* of loved one & descendants */
       char    msg[ERRLEN];
} Waitmsg;

extern  void    _exits(char*);

extern  void    abort(void);
extern  int     access(char*, int);
extern  long    alarm(ulong);
extern  int     bind(char*, char*, int);
extern  int     brk(void*);
extern  int     chdir(char*);
extern  int     close(int);
extern  int     create(char*, int, ulong);
extern  int     dup(int, int);
extern  int     errstr(char*);
extern  int     exec(char*, char*[]);
extern  int     execl(char*, ...);
extern  int     filsys(int, int, char*);
extern  int     fork(void);
extern  int     rfork(int);
extern  int     fstat(int, char*);
extern  int     fwstat(int, char*);
extern  int     mount(int, char*, int, char*, char*);
extern  int     unmount(char*, char*);
extern  int     noted(int);
extern  int     notify(void(*)(void*, char*));
extern  int     open(char*, int);
extern  int     pipe(int*);
extern  long    read(int, void*, long);
extern  int     remove(char*);
extern  void*   sbrk(ulong);
extern  long    seek(int, long, int);
extern  int     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     sleep(long);
extern  int     stat(char*, char*);
extern  int     wait(Waitmsg*);
extern  long    write(int, void*, long);
extern  int     wstat(char*, char*);
extern  int     rendezvous(ulong, ulong);

extern  int     dirstat(char*, Dir*);
extern  int     dirfstat(int, Dir*);
extern  int     dirwstat(char*, Dir*);
extern  int     dirfwstat(int, Dir*);
extern  long    dirread(int, Dir*, long);
extern  int     getpid(void);
extern  int     getppid(void);

/*
* argument processing
*/
extern char *argv0;
#define ARGBEGIN        for((argv0? 0: (argv0=*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,_argc,_args);}USED(argv, argc);
#define ARGF()          (_argt=_args, _args="",\
                               (*_argt? _argt: argv[1]? (argc--, *++argv): 0))
#define ARGC()          _argc

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