extern uint32_t htonl(uint32_t);
extern uint16_t htons(uint16_t);
extern in_addr_t inet_addr(const char *);
extern int inet_aton(const char *, struct in_addr *);
extern char *inet_ntoa(struct in_addr);
extern const char *inet_ntop(int, const void *, char *, socklen_t);
extern int inet_pton(int, const char *, void *);
extern uint32_t ntohl(uint32_t);
extern uint16_t ntohs(uint16_t);

#ifdef NDEBUG
#define assert(expr) ((void)0)
#else
#define assert(expr)	((void) ((expr) ? 0 : (__assert_fail (#expr, __FILE__, __LINE__, __PRETTY_FUNCTION__), 0)))
#endif

extern void __assert_fail(const char *, const char *, unsigned int,
			  const char *);

#define C_IXOTH	000001
#define C_IWOTH	000002
#define C_IROTH	000004
#define C_IXGRP	000010
#define C_IWGRP	000020
#define C_IRGRP	000040
#define C_IXUSR	000100
#define C_IWUSR	000200
#define C_IRUSR	000400
#define C_ISVTX	001000
#define C_ISGID	002000
#define C_ISUID	004000
#define C_ISFIFO	010000
#define C_ISREG	0100000
#define C_ISCTG	0110000
#define C_ISLNK	0120000
#define C_ISSOCK	0140000
#define C_ISCHR	020000
#define C_ISDIR	040000
#define C_ISBLK	060000
#define MAGIC	"070707"

extern int _tolower(int);
extern int _toupper(int);
extern int isalnum(int);
extern int isalpha(int);
extern int isascii(int);
extern int iscntrl(int);
extern int isdigit(int);
extern int isgraph(int);
extern int islower(int);
extern int isprint(int);
extern int ispunct(int);
extern int isspace(int);
extern int isupper(int);
extern int isxdigit(int);
extern int toascii(int);
extern int tolower(int);
extern int toupper(int);
extern int isblank(int);
extern const unsigned short **__ctype_b_loc(void);
extern const int32_t **__ctype_toupper_loc(void);
extern const int32_t **__ctype_tolower_loc(void);

typedef struct __dirstream DIR;

struct dirent {
    long int d_ino;
    off_t d_off;
    unsigned short d_reclen;
    unsigned char d_type;
    char d_name[256];
};
struct dirent64 {
    uint64_t d_ino;
    int64_t d_off;
    unsigned short d_reclen;
    unsigned char d_type;
    char d_name[256];
};
extern int readdir64_r(DIR *, struct dirent64 *, struct dirent64 **);
extern int alphasort(const struct dirent **, const struct dirent **);
extern int alphasort64(const struct dirent64 **, const struct dirent64 **);
extern int dirfd(DIR *);
extern void rewinddir(DIR *);
extern int scandir(const char *, struct dirent ***,
		   int (*)(const struct dirent *)
		   , int (*)(const struct dirent *, const struct dirent *)
    );
extern void seekdir(DIR *, long int);
extern long int telldir(DIR *);
extern int closedir(DIR *);
extern DIR *opendir(const char *);
extern struct dirent *readdir(DIR *);
extern struct dirent64 *readdir64(DIR *);
extern int readdir_r(DIR *, struct dirent *, struct dirent **);
extern int scandir64(const char *, struct dirent64 ***,
		     int (*)(const struct dirent64 *)
		     , int (*)(const struct dirent64 *,
			       const struct dirent64 *)
    );
extern DIR *fdopendir(int);

#define __LITTLE_ENDIAN	1234
#define __BIG_ENDIAN	4321
#define BIG_ENDIAN	__BIG_ENDIAN
#define BYTE_ORDER	__BYTE_ORDER
#define LITTLE_ENDIAN	__LITTLE_ENDIAN

extern void err(int, const char *, ...);
extern void errx(int, const char *, ...);
extern void warn(const char *, ...);
extern void warnx(const char *, ...);
extern void error(int, int, const char *, ...);

#define errno	(*__errno_location())

#define EPERM	1		/* Operation not permitted */
#define ECHILD	10		/* No child processes */
#define ENETDOWN	100	/* Network is down */
#define ENETUNREACH	101	/* Network is unreachable */
#define ENETRESET	102	/* Network dropped connection because of reset */
#define ECONNABORTED	103	/* Software caused connection abort */
#define ECONNRESET	104	/* Connection reset by peer */
#define ENOBUFS	105		/* No buffer space available */
#define EISCONN	106		/* Transport endpoint is already connected */
#define ENOTCONN	107	/* Transport endpoint is not connected */
#define ESHUTDOWN	108	/* Cannot send after transport endpoint shutdown */
#define ETOOMANYREFS	109	/* Too many references: cannot splice */
#define EAGAIN	11		/* Try again */
#define ETIMEDOUT	110	/* Connection timed out */
#define ECONNREFUSED	111	/* Connection refused */
#define EHOSTDOWN	112	/* Host is down */
#define EHOSTUNREACH	113	/* No route to host */
#define EALREADY	114	/* Operation already in progress */
#define EINPROGRESS	115	/* Operation now in progress */
#define ESTALE	116		/* Stale NFS file handle */
#define EUCLEAN	117		/* Structure needs cleaning */
#define ENOTNAM	118		/* Not a XENIX named type file */
#define ENAVAIL	119		/* No XENIX semaphores available */
#define ENOMEM	12		/* Out of memory */
#define EISNAM	120		/* Is a named type file */
#define EREMOTEIO	121	/* Remote I/O error */
#define EDQUOT	122		/* Quota exceeded */
#define ENOMEDIUM	123	/* No medium found */
#define EMEDIUMTYPE	124	/* Wrong medium type */
#define ECANCELED	125	/* Operation Canceled */
#define EACCES	13		/* Permission denied */
#define EFAULT	14		/* Bad address */
#define ENOTBLK	15		/* Block device required */
#define EBUSY	16		/* Device or resource busy */
#define EEXIST	17		/* File exists */
#define EXDEV	18		/* Cross-device link */
#define ENODEV	19		/* No such device */
#define ENOENT	2		/* No such file or directory */
#define ENOTDIR	20		/* Not a directory */
#define EISDIR	21		/* Is a directory */
#define EINVAL	22		/* Invalid argument */
#define ENFILE	23		/* File table overflow */
#define EMFILE	24		/* Too many open files */
#define ENOTTY	25		/* Not a typewriter */
#define ETXTBSY	26		/* Text file busy */
#define EFBIG	27		/* File too large */
#define ENOSPC	28		/* No space left on device */
#define ESPIPE	29		/* Illegal seek */
#define ESRCH	3		/* No such process */
#define EROFS	30		/* Read-only file system */
#define EMLINK	31		/* Too many links */
#define EPIPE	32		/* Broken pipe */
#define EDOM	33		/* Math argument out of domain of func */
#define ERANGE	34		/* Math result not representable */
#define EDEADLK	35		/* Resource deadlock would occur */
#define ENAMETOOLONG	36	/* File name too long */
#define ENOLCK	37		/* No record locks available */
#define ENOSYS	38		/* Function not implemented */
#define ENOTEMPTY	39	/* Directory not empty */
#define EINTR	4		/* Interrupted system call */
#define ELOOP	40		/* Too many symbolic links encountered */
#define ENOMSG	42		/* No message of desired type */
#define EIDRM	43		/* Identifier removed */
#define ECHRNG	44		/* Channel number out of range */
#define EL2NSYNC	45	/* Level 2 not synchronized */
#define EL3HLT	46		/* Level 3 halted */
#define EL3RST	47		/* Level 3 reset */
#define ELNRNG	48		/* Link number out of range */
#define EUNATCH	49		/* Protocol driver not attached */
#define EIO	5		/* I/O error */
#define ENOANO	55		/* No anode */
#define EBADRQC	56		/* Invalid request code */
#define EBADSLT	57		/* Invalid slot */
#define EBFONT	59		/* Bad font file format */
#define ENXIO	6		/* No such device or address */
#define ENOSTR	60		/* Device not a stream */
#define ENODATA	61		/* No data available */
#define ETIME	62		/* Timer expired */
#define ENOSR	63		/* Out of streams resources */
#define ENONET	64		/* Machine is not on the network */
#define ENOPKG	65		/* Package not installed */
#define EREMOTE	66		/* Object is remote */
#define ENOLINK	67		/* Link has been severed */
#define EADV	68		/* Advertise error */
#define ESRMNT	69		/* Srmount error */
#define E2BIG	7		/* Argument list too long */
#define ECOMM	70		/* Communication error on send */
#define EPROTO	71		/* Protocol error */
#define EMULTIHOP	72	/* Multihop attempted */
#define EDOTDOT	73		/* RFS specific error */
#define EBADMSG	74		/* Not a data message */
#define EOVERFLOW	75	/* Value too large for defined data type */
#define ENOTUNIQ	76	/* Name not unique on network */
#define EBADFD	77		/* File descriptor in bad state */
#define EREMCHG	78		/* Remote address changed */
#define ELIBACC	79		/* Can not access a needed shared library */
#define ENOEXEC	8		/* Exec format error */
#define ELIBBAD	80		/* Accessing a corrupted shared library */
#define ELIBSCN	81		/* .lib section in a.out corrupted */
#define ELIBMAX	82		/* Attempting to link in too many shared libraries */
#define ELIBEXEC	83	/* Cannot exec a shared library directly */
#define EILSEQ	84		/* Illegal byte sequence */
#define ERESTART	85	/* Interrupted system call should be restarted */
#define ESTRPIPE	86	/* Streams pipe error */
#define EUSERS	87		/* Too many users */
#define ENOTSOCK	88	/* Socket operation on non-socket */
#define EDESTADDRREQ	89	/* Destination address required */
#define EBADF	9		/* Bad file number */
#define EMSGSIZE	90	/* Message too long */
#define EPROTOTYPE	91	/* Protocol wrong type for socket */
#define ENOPROTOOPT	92	/* Protocol not available */
#define EPROTONOSUPPORT	93	/* Protocol not supported */
#define ESOCKTNOSUPPORT	94	/* Socket type not supported */
#define EOPNOTSUPP	95	/* Operation not supported on transport endpoint */
#define EPFNOSUPPORT	96	/* Protocol family not supported */
#define EAFNOSUPPORT	97	/* Address family not supported by protocol */
#define EADDRINUSE	98	/* Address already in use */
#define EADDRNOTAVAIL	99	/* Cannot assign requested address */
#define EWOULDBLOCK	EAGAIN	/* Operation would block */
#define ENOTSUP	EOPNOTSUPP

extern int *__errno_location(void);

#define POSIX_FADV_NORMAL	0
#define O_RDONLY	00
#define O_ACCMODE	0003
#define O_WRONLY	01
#define O_CREAT	0100
#define O_TRUNC	01000
#define O_DSYNC	010000
#define O_RSYNC	010000
#define O_SYNC	010000
#define O_RDWR	02
#define O_EXCL	0200
#define O_APPEND	02000
#define O_ASYNC	020000
#define O_NOCTTY	0400
#define O_NDELAY	04000
#define O_NONBLOCK	04000
#define FD_CLOEXEC	1
#define POSIX_FADV_RANDOM	1
#define POSIX_FADV_SEQUENTIAL	2
#define POSIX_FADV_WILLNEED	3

struct flock {
    short l_type;
    short l_whence;
    off_t l_start;
    off_t l_len;
    pid_t l_pid;
};
struct flock64 {
    short l_type;
    short l_whence;
    loff_t l_start;
    loff_t l_len;
    pid_t l_pid;
};

#define AT_FDCWD	-100
#define AT_SYMLINK_NOFOLLOW	0x100
#define AT_EACCESS	0x200
#define AT_REMOVEDIR	0x200
#define AT_SYMLINK_FOLLOW	0x400

#define F_DUPFD	0
#define F_RDLCK	0
#define F_GETFD	1
#define F_WRLCK	1
#define F_SETSIG	10
#define F_GETSIG	11
#define F_SETFD	2
#define F_UNLCK	2
#define F_GETFL	3
#define F_SETFL	4
#define F_GETLK	5
#define F_SETLK	6
#define F_SETLKW	7
#define F_SETOWN	8
#define F_GETOWN	9

extern int posix_fadvise(int, off_t, off_t, int);
extern int posix_fallocate(int, off_t, off_t);
extern int posix_fadvise64(int, off64_t, off64_t, int);
extern int posix_fallocate64(int, off64_t, off64_t);
extern int creat(const char *, mode_t);
extern int creat64(const char *, mode_t);
extern int fcntl(int, int, ...);
extern int open(const char *, int, ...);
extern int open64(const char *, int, ...);
extern int openat(int, const char *, int, ...);
extern int openat64(int, const char *, int, ...);

#define MM_HARD	1		/* Source of the condition is hardware. */
#define MM_NRECOV	128	/* Non-recoverable error. */
#define MM_UTIL	16		/* Condition detected by utility. */
#define MM_SOFT	2		/* Source of the condition is software. */
#define MM_PRINT	256	/* Display message in standard error. */
#define MM_OPSYS	32	/* Condition detected by operating system. */
#define MM_FIRM	4		/* Source of the condition is firmware. */
#define MM_CONSOLE	512	/* Display message on system console. */
#define MM_RECOVER	64	/* Recoverable error. */
#define MM_APPL	8		/* Condition detected by application. */

#define MM_NOSEV	0	/* No severity level provided for the message. */
#define MM_HALT	1		/* Error causing application to halt. */
#define MM_ERROR	2	/* Application has encountered a non-fatal fault. */
#define MM_WARNING	3	/* Application has detected unusual non-error condition. */
#define MM_INFO	4		/* Informative message. */

#define MM_NULLACT	((char *) 0)
#define MM_NULLLBL	((char *) 0)
#define MM_NULLTAG	((char *) 0)
#define MM_NULLTXT	((char *) 0)
#define MM_NULLMC	((long int) 0)
#define MM_NULLSEV	0

#define MM_NOTOK	-1	/* The function failed completely. */
#define MM_OK	0		/* The function succeeded. */
#define MM_NOMSG	1	/* The function was unable to generate a message on standard error, but otherwise succeeded. */
#define MM_NOCON	4	/* The function was unable to generate a console message, but otherwise succeeded. */

extern int fmtmsg(long int, const char *, int, const char *, const char *,
		  const char *);

#define FNM_PATHNAME	(1<<0)
#define FNM_NOESCAPE	(1<<1)
#define FNM_PERIOD	(1<<2)
#define FNM_NOMATCH	1

extern int fnmatch(const char *, const char *, int);

#define FTW_D	FTW_D
#define FTW_DNR	FTW_DNR
#define FTW_DP	FTW_DP
#define FTW_F	FTW_F
#define FTW_NS	FTW_NS
#define FTW_SL	FTW_SL
#define FTW_SLN	FTW_SLN

enum {
    FTW_F,
    FTW_D,
    FTW_DNR,
    FTW_NS,
    FTW_SL,
    FTW_DP,
    FTW_SLN
};

enum {
    FTW_PHYS = 1,
    FTW_MOUNT = 2,
    FTW_CHDIR = 4,
    FTW_DEPTH = 8
};

struct FTW {
    int base;
    int level;
};

typedef int (*__ftw_func_t) (const char *__filename,
			     const struct stat * __status, int __flag);
typedef int (*__ftw64_func_t) (const char *__filename,
			       const struct stat64 * __status, int __flag);
typedef int (*__nftw_func_t) (const char *__filename,
			      const struct stat * __status, int __flag,
			      struct FTW * __info);
typedef int (*__nftw64_func_t) (const char *__filename,
				const struct stat64 * __status, int __flag,
				struct FTW * __info);
extern int ftw(const char *, __ftw_func_t, int);
extern int ftw64(const char *, __ftw64_func_t, int);
extern int nftw(const char *, __nftw_func_t, int, int);
extern int nftw64(const char *, __nftw64_func_t, int, int);

#define no_argument	0
#define required_argument	1
#define optional_argument	2

struct option {
    const char *name;
    int has_arg;
    int *flag;
    int val;
};
extern int getopt_long(int, char *const[], const char *,
		       const struct option *, int *);
extern int getopt_long_only(int, char *const[], const char *,
			    const struct option *, int *);

#define GLOB_ERR	(1<<0)
#define GLOB_MARK	(1<<1)
#define GLOB_BRACE	(1<<10)
#define GLOB_NOMAGIC	(1<<11)
#define GLOB_TILDE	(1<<12)
#define GLOB_ONLYDIR	(1<<13)
#define GLOB_TILDE_CHECK	(1<<14)
#define GLOB_NOSORT	(1<<2)
#define GLOB_DOOFFS	(1<<3)
#define GLOB_NOCHECK	(1<<4)
#define GLOB_APPEND	(1<<5)
#define GLOB_NOESCAPE	(1<<6)
#define GLOB_PERIOD	(1<<7)
#define GLOB_MAGCHAR	(1<<8)
#define GLOB_ALTDIRFUNC	(1<<9)

#define GLOB_NOSPACE	1
#define GLOB_ABORTED	2
#define GLOB_NOMATCH	3
#define GLOB_NOSYS	4

typedef struct {
    size_t gl_pathc;
    char **gl_pathv;
    size_t gl_offs;
    int gl_flags;
    void (*gl_closedir) (void *);
    struct dirent *(*gl_readdir) (void *);
    void *(*gl_opendir) (const char *);
    int (*gl_lstat) (const char *, struct stat *);
    int (*gl_stat) (const char *, struct stat *);
} glob_t;

typedef struct {
    size_t gl_pathc;
    char **gl_pathv;
    size_t gl_offs;
    int gl_flags;
    void (*gl_closedir) (void *);
    struct dirent64 *(*gl_readdir) (void *);
    void *(*gl_opendir) (const char *);
    int (*gl_lstat) (const char *, struct stat *);
    int (*gl_stat) (const char *, struct stat *);
} glob64_t;
extern int glob(const char *, int, int (*)(const char *p1, int p2)
		, glob_t *);
extern int glob64(const char *, int, int (*)(const char *p1, int p2)
		  , glob64_t *);
extern void globfree(glob_t *);
extern void globfree64(glob64_t *);

struct group {
    char *gr_name;
    char *gr_passwd;
    gid_t gr_gid;
    char **gr_mem;
};

extern void endgrent(void);
extern struct group *getgrent(void);
extern struct group *getgrgid(gid_t);
extern struct group *getgrnam(const char *);
extern int initgroups(const char *, gid_t);
extern void setgrent(void);
extern int setgroups(size_t, const gid_t *);
extern int getgrgid_r(gid_t, struct group *, char *, size_t,
		      struct group **);
extern int getgrnam_r(const char *, struct group *, char *, size_t,
		      struct group **);
extern int getgrent_r(struct group *, char *, size_t, struct group **);
extern int getgrouplist(const char *, gid_t, gid_t *, int *);

typedef void *iconv_t;
extern size_t iconv(iconv_t, char **, size_t *, char **, size_t *);
extern int iconv_close(iconv_t);
extern iconv_t iconv_open(const char *, const char *);

typedef lldiv_t imaxdiv_t;

#define __PDP_ENDIAN	3412
#define PDP_ENDIAN	__PDP_ENDIAN

extern intmax_t strtoimax(const char *, char **, int);
extern uintmax_t strtoumax(const char *, char **, int);
extern intmax_t wcstoimax(const wchar_t *, wchar_t * *, int);
extern uintmax_t wcstoumax(const wchar_t *, wchar_t * *, int);
extern intmax_t imaxabs(intmax_t);
extern imaxdiv_t imaxdiv(intmax_t, intmax_t);

#define ABDAY_1	0x20000		/* Sun. */
#define ABDAY_2	0x20001
#define ABDAY_3	0x20002
#define ABDAY_4	0x20003
#define ABDAY_5	0x20004
#define ABDAY_6	0x20005
#define ABDAY_7	0x20006

#define DAY_1	0x20007
#define DAY_2	0x20008
#define DAY_3	0x20009
#define DAY_4	0x2000A
#define DAY_5	0x2000B
#define DAY_6	0x2000C
#define DAY_7	0x2000D

#define ABMON_1	0x2000E
#define ABMON_2	0x2000F
#define ABMON_3	0x20010
#define ABMON_4	0x20011
#define ABMON_5	0x20012
#define ABMON_6	0x20013
#define ABMON_7	0x20014
#define ABMON_8	0x20015
#define ABMON_9	0x20016
#define ABMON_10	0x20017
#define ABMON_11	0x20018
#define ABMON_12	0x20019

#define MON_1	0x2001A
#define MON_2	0x2001B
#define MON_3	0x2001C
#define MON_4	0x2001D
#define MON_5	0x2001E
#define MON_6	0x2001F
#define MON_7	0x20020
#define MON_8	0x20021
#define MON_9	0x20022
#define MON_10	0x20023
#define MON_11	0x20024
#define MON_12	0x20025

#define AM_STR	0x20026
#define PM_STR	0x20027

#define D_T_FMT	0x20028
#define D_FMT	0x20029
#define T_FMT	0x2002A
#define T_FMT_AMPM	0x2002B

#define ERA	0x2002C
#define ERA_D_FMT	0x2002E
#define ALT_DIGITS	0x2002F
#define ERA_D_T_FMT	0x20030
#define ERA_T_FMT	0x20031

#define CODESET	14

#define CRNCYSTR	0x4000F

#define RADIXCHAR	0x10000
#define THOUSEP	0x10001
#define YESEXPR	0x50000
#define NOEXPR	0x50001
#define YESSTR	0x50002
#define NOSTR	0x50003

extern char *nl_langinfo(nl_item);

#define basename __xpg_basename

extern char *dirname(char *);
extern char *__xpg_basename(char *);

extern char *bindtextdomain(const char *, const char *);
extern char *dcgettext(const char *, const char *, int);
extern char *dgettext(const char *, const char *);
extern char *gettext(const char *);
extern char *textdomain(const char *);
extern char *bind_textdomain_codeset(const char *, const char *);
extern char *dcngettext(const char *, const char *, const char *,
			unsigned long int, int);
extern char *dngettext(const char *, const char *, const char *,
		       unsigned long int);
extern char *ngettext(const char *, const char *, unsigned long int);

#define LLONG_MIN	(-LLONG_MAX-1LL)
#define _POSIX_AIO_MAX	1
#define _POSIX_QLIMIT	1
#define _POSIX2_BC_STRING_MAX	1000
#define _POSIX2_CHARCLASS_NAME_MAX	14
#define _POSIX_NAME_MAX	14
#define _POSIX_UIO_MAXIOV	16
#define ULLONG_MAX	18446744073709551615ULL
#define _POSIX2_COLL_WEIGHTS_MAX	2
#define _POSIX_AIO_LISTIO_MAX	2
#define _POSIX_OPEN_MAX	20
#define _POSIX_CLOCKRES_MIN	20000000
#define CHARCLASS_NAME_MAX	2048
#define LINE_MAX	2048
#define _POSIX2_BC_DIM_MAX	2048
#define _POSIX2_LINE_MAX	2048
#define _POSIX_CHILD_MAX	25
#define COLL_WEIGHTS_MAX	255
#define _POSIX2_RE_DUP_MAX	255
#define _POSIX_HOST_NAME_MAX	255
#define _POSIX_MAX_CANON	255
#define _POSIX_MAX_INPUT	255
#define _POSIX_RE_DUP_MAX	255
#define _POSIX_SYMLINK_MAX	255
#define _POSIX_PATH_MAX	256
#define _POSIX_SEM_NSEMS_MAX	256
#define NGROUPS_MAX	32
#define _POSIX2_EXPR_NEST_MAX	32
#define _POSIX_DELAYTIMER_MAX	32
#define _POSIX_MQ_PRIO_MAX	32
#define _POSIX_SIGQUEUE_MAX	32
#define _POSIX_TIMER_MAX	32
#define _POSIX_SEM_VALUE_MAX	32767
#define _POSIX_SSIZE_MAX	32767
#define PATH_MAX	4096
#define _POSIX_ARG_MAX	4096
#define _POSIX_PIPE_BUF	512
#define _POSIX_TZNAME_MAX	6
#define _POSIX_LINK_MAX	8
#define _POSIX_MQ_OPEN_MAX	8
#define _POSIX_NGROUPS_MAX	8
#define _POSIX_RTSIG_MAX	8
#define _POSIX_STREAM_MAX	8
#define _POSIX_SYMLOOP_MAX	8
#define _POSIX_LOGIN_NAME_MAX	9
#define _POSIX_TTY_NAME_MAX	9
#define LLONG_MAX	9223372036854775807LL
#define _POSIX2_BC_BASE_MAX	99
#define _POSIX2_BC_SCALE_MAX	99
#define SSIZE_MAX	LONG_MAX	/* Maximum value of an object of type ssize_t */
#define BC_BASE_MAX	_POSIX2_BC_BASE_MAX
#define BC_DIM_MAX	_POSIX2_BC_DIM_MAX
#define BC_SCALE_MAX	_POSIX2_BC_SCALE_MAX
#define BC_STRING_MAX	_POSIX2_BC_STRING_MAX
#define EXPR_NEST_MAX	_POSIX2_EXPR_NEST_MAX
#define _POSIX_FD_SETSIZE	_POSIX_OPEN_MAX
#define _POSIX_HIWAT	_POSIX_PIPE_BUF

#define MB_LEN_MAX	16

#define SCHAR_MIN	(-128)
#define SCHAR_MAX	127
#define UCHAR_MAX	255
#define CHAR_BIT	8

#define SHRT_MIN	(-32768)
#define SHRT_MAX	32767
#define USHRT_MAX	65535

#define INT_MIN	(-INT_MAX-1)
#define INT_MAX	2147483647
#define UINT_MAX	4294967295U

#define LONG_MIN	(-LONG_MAX-1L)

#define PTHREAD_KEYS_MAX	1024
#define PTHREAD_THREADS_MAX	16384
#define PTHREAD_DESTRUCTOR_ITERATIONS	4

struct lconv {
    char *decimal_point;
    char *thousands_sep;
    char *grouping;
    char *int_curr_symbol;
    char *currency_symbol;
    char *mon_decimal_point;
    char *mon_thousands_sep;
    char *mon_grouping;
    char *positive_sign;
    char *negative_sign;
    char int_frac_digits;
    char frac_digits;
    char p_cs_precedes;
    char p_sep_by_space;
    char n_cs_precedes;
    char n_sep_by_space;
    char p_sign_posn;
    char n_sign_posn;
    char int_p_cs_precedes;
    char int_p_sep_by_space;
    char int_n_cs_precedes;
    char int_n_sep_by_space;
    char int_p_sign_posn;
    char int_n_sign_posn;
};

#define LC_GLOBAL_LOCALE	((locale_t) -1L)
#define LC_CTYPE	0
#define LC_NUMERIC	1
#define LC_TELEPHONE	10
#define LC_MEASUREMENT	11
#define LC_IDENTIFICATION	12
#define LC_TIME	2
#define LC_COLLATE	3
#define LC_MONETARY	4
#define LC_MESSAGES	5
#define LC_ALL	6
#define LC_PAPER	7
#define LC_NAME	8
#define LC_ADDRESS	9

struct __locale_struct {
    struct locale_data *__locales[13];
    const unsigned short *__ctype_b;
    const int *__ctype_tolower;
    const int *__ctype_toupper;
    const char *__names[13];
};
typedef struct __locale_struct *__locale_t;

typedef struct __locale_struct *locale_t;

#define LC_ADDRESS_MASK	(1 << LC_ADDRESS)
#define LC_COLLATE_MASK	(1 << LC_COLLATE)
#define LC_IDENTIFICATION_MASK	(1 << LC_IDENTIFICATION)
#define LC_MEASUREMENT_MASK	(1 << LC_MEASUREMENT)
#define LC_MESSAGES_MASK	(1 << LC_MESSAGES)
#define LC_MONETARY_MASK	(1 << LC_MONETARY)
#define LC_NAME_MASK	(1 << LC_NAME)
#define LC_NUMERIC_MASK	(1 << LC_NUMERIC)
#define LC_PAPER_MASK	(1 << LC_PAPER)
#define LC_TELEPHONE_MASK	(1 << LC_TELEPHONE)
#define LC_TIME_MASK	(1 << LC_TIME)
#define LC_CTYPE_MASK	(1<<LC_CTYPE)
#define LC_ALL_MASK	\
        (LC_CTYPE_MASK| LC_NUMERIC_MASK| LC_TIME_MASK| LC_COLLATE_MASK| LC_MONETARY_MASK|\
         LC_MESSAGES_MASK| LC_PAPER_MASK| LC_NAME_MASK| LC_ADDRESS_MASK| LC_TELEPHONE_MASK|\
         LC_MEASUREMENT_MASK| LC_IDENTIFICATION_MASK)

extern struct lconv *localeconv(void);
extern char *setlocale(int, const char *);
extern locale_t uselocale(locale_t);
extern void freelocale(locale_t);
extern locale_t duplocale(locale_t);
extern locale_t newlocale(int, const char *, locale_t);

extern ssize_t strfmon(char *, size_t, const char *, ...);

#define IF_NAMESIZE	16

#define IFF_UP	0x01		/* Interface is up. */
#define IFF_BROADCAST	0x02	/* Broadcast address valid. */
#define IFF_DEBUG	0x04	/* Turn on debugging. */
#define IFF_LOOPBACK	0x08	/* Is a loopback net. */
#define IFF_POINTOPOINT	0x10	/* Interface is point-to-point link. */
#define IFF_PROMISC	0x100	/* Receive all packets. */
#define IFF_MULTICAST	0x1000	/* Supports multicast. */
#define IFF_NOTRAILERS	0x20	/* Avoid use of trailers. */
#define IFF_RUNNING	0x40	/* Resources allocated. */
#define IFF_NOARP	0x80	/* No address resolution protocol. */

struct if_nameindex {
    unsigned int if_index;
    char *if_name;
};

struct ifaddr {
    struct sockaddr ifa_addr;
    union {
	struct sockaddr ifu_broadaddr;
	struct sockaddr ifu_dstaddr;
    } ifa_ifu;
    void *ifa_ifp;
    void *ifa_next;
};

#define ifr_name	ifr_ifrn.ifrn_name	/* interface name */
#define ifr_addr	ifr_ifru.ifru_addr	/* address */
#define ifr_broadaddr	ifr_ifru.ifru_broadaddr	/* broadcast address */
#define ifr_data	ifr_ifru.ifru_data	/* for use by interface */
#define ifr_dstaddr	ifr_ifru.ifru_dstaddr	/* other end of p-p lnk */
#define ifr_flags	ifr_ifru.ifru_flags	/* flags */
#define ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* interface name */
#define ifr_bandwidth	ifr_ifru.ifru_ivalue	/* link bandwidth */
#define ifr_ifindex	ifr_ifru.ifru_ivalue	/* interface index */
#define ifr_metric	ifr_ifru.ifru_ivalue	/* metric */
#define ifr_qlen	ifr_ifru.ifru_ivalue	/* queue length */
#define ifr_mtu	ifr_ifru.ifru_mtu	/* mtu */
#define ifr_netmask	ifr_ifru.ifru_netmask	/* interface net mask */
#define ifr_slave	ifr_ifru.ifru_slave	/* slave device */
#define IFNAMSIZ	IF_NAMESIZE

struct ifreq {
    union {
	char ifrn_name[IFNAMSIZ];
    } ifr_ifrn;
    union {
	struct sockaddr ifru_addr;
	struct sockaddr ifru_dstaddr;
	struct sockaddr ifru_broadaddr;
	struct sockaddr ifru_netmask;
	struct sockaddr ifru_hwaddr;
	short ifru_flags;
	int ifru_ivalue;
	int ifru_mtu;
	char ifru_slave[IFNAMSIZ];
	char ifru_newname[IFNAMSIZ];
	caddr_t ifru_data;
	struct ifmap ifru_map;
    } ifr_ifru;
};

#define ifc_buf	ifc_ifcu.ifcu_buf	/* Buffer address. */
#define ifc_req	ifc_ifcu.ifcu_req	/* Array of structures. */

struct ifconf {
    int ifc_len;
    union {
	caddr_t ifcu_buf;
	struct ifreq *ifcu_req;
    } ifc_ifcu;
};
extern void if_freenameindex(struct if_nameindex *);
extern char *if_indextoname(unsigned int, char *);
extern struct if_nameindex *if_nameindex(void);
extern unsigned int if_nametoindex(const char *);

#define h_errno	(*__h_errno_location ())
#define NETDB_INTERNAL	-1	/* See errno. */
#define NETDB_SUCCESS	0	/* No problem. */
#define HOST_NOT_FOUND	1	/* Authoritative Answer Host not found. */
#define IPPORT_RESERVED	1024
#define NI_MAXHOST	1025
#define TRY_AGAIN	2	/* Non-Authoritative Host not found, or SERVERFAIL. */
#define NO_RECOVERY	3	/* Non recoverable errors, FORMERR, REFUSED, NOTIMP. */
#define NI_MAXSERV	32
#define NO_DATA	4		/* Valid name, no data record of requested type. */
#define h_addr	h_addr_list[0]
#define NO_ADDRESS	NO_DATA	/* No address, look for MX record. */

struct servent {
    char *s_name;
    char **s_aliases;
    int s_port;
    char *s_proto;
};
struct hostent {
    char *h_name;
    char **h_aliases;
    int h_addrtype;
    int h_length;
    char **h_addr_list;
};
struct protoent {
    char *p_name;
    char **p_aliases;
    int p_proto;
};
struct netent {
    char *n_name;
    char **n_aliases;
    int n_addrtype;
    unsigned int n_net;
};

#define AI_PASSIVE	0x0001	/* Socket address is intended for `bind' */
#define AI_CANONNAME	0x0002	/* Request for canonical name */
#define AI_NUMERICHOST	0x0004	/* Don't use name resolution */
#define AI_V4MAPPED	0x0008	/* IPv4 mapped addresses are acceptable. */
#define AI_ALL	0x0010		/* Return IPv4 mapped and IPv6 addresses. */
#define AI_ADDRCONFIG	0x0020	/* Use configuration of this host to choose returned address type.. */
#define AI_NUMERICSERV	0x0400	/* Don't use name resolution */

struct addrinfo {
    int ai_flags;
    int ai_family;
    int ai_socktype;
    int ai_protocol;
    socklen_t ai_addrlen;
    struct sockaddr *ai_addr;
    char *ai_canonname;
    struct addrinfo *ai_next;
};

#define NI_NUMERICHOST	1
#define NI_DGRAM	16
#define NI_NUMERICSERV	2
#define NI_NOFQDN	4
#define NI_NAMEREQD	8

#define EAI_BADFLAGS	-1	/* Invalid value for `ai_flags' field. */
#define EAI_MEMORY	-10	/* Memory allocation failure. */
#define EAI_SYSTEM	-11	/* System error returned in `errno'. */
#define EAI_NONAME	-2	/* NAME or SERVICE is unknown. */
#define EAI_AGAIN	-3	/* Temporary failure in name resolution. */
#define EAI_FAIL	-4	/* Non-recoverable failure in name res. */
#define EAI_NODATA	-5	/* No address associated with NAME. */
#define EAI_FAMILY	-6	/* `ai_family' not supported. */
#define EAI_SOCKTYPE	-7	/* `ai_family' not supported. */
#define EAI_SERVICE	-8	/* SERVICE not supported for `ai_socktype'. */
#define EAI_ADDRFAMILY	-9	/* Address family for NAME not supported. */

extern int gethostbyname2_r(const char *, int, struct hostent *, char *,
			    size_t, struct hostent **, int *);
extern int getprotobyname_r(const char *, struct protoent *, char *,
			    size_t, struct protoent **);
extern int getprotobynumber_r(int, struct protoent *, char *, size_t,
			      struct protoent **);
extern int getprotoent_r(struct protoent *, char *, size_t,
			 struct protoent **);
extern int getservbyname_r(const char *, const char *, struct servent *,
			   char *, size_t, struct servent **);
extern int getservbyport_r(int, const char *, struct servent *, char *,
			   size_t, struct servent **);
extern int getservent_r(struct servent *, char *, size_t,
			struct servent **);
extern void endprotoent(void);
extern void endservent(void);
extern void freeaddrinfo(struct addrinfo *);
extern const char *gai_strerror(int);
extern int getaddrinfo(const char *, const char *, const struct addrinfo *,
		       struct addrinfo **);
extern struct hostent *gethostbyaddr(const void *, socklen_t, int);
extern struct hostent *gethostbyname(const char *);
extern struct hostent *gethostbyname2(const char *, int);
extern struct protoent *getprotobyname(const char *);
extern struct protoent *getprotobynumber(int);
extern struct protoent *getprotoent(void);
extern struct servent *getservbyname(const char *, const char *);
extern struct servent *getservbyport(int, const char *);
extern struct servent *getservent(void);
extern void setprotoent(int);
extern void setservent(int);
extern int *__h_errno_location(void);
extern int gethostbyaddr_r(const void *, socklen_t, int, struct hostent *,
			   char *, size_t, struct hostent **, int *);
extern int gethostbyname_r(const char *, struct hostent *, char *, size_t,
			   struct hostent **, int *);

#define IPPROTO_IP	0
#define IPPROTO_ICMP	1
#define IPPROTO_UDP	17
#define IPPROTO_IGMP	2
#define IPPROTO_RAW	255
#define IPPROTO_IPV6	41
#define IPPROTO_ICMPV6	58
#define IPPROTO_TCP	6

typedef uint16_t in_port_t;

struct in_addr {
    uint32_t s_addr;
};
typedef uint32_t in_addr_t;

#define INADDR_NONE	((in_addr_t) 0xffffffff)
#define INADDR_BROADCAST	(0xffffffff)
#define INADDR_ANY	0
#define INADDR_LOOPBACK	0x7f000001	/* 127.0.0.1 */

#define s6_addr16	in6_u.u6_addr16
#define s6_addr32	in6_u.u6_addr32
#define s6_addr	in6_u.u6_addr8

struct in6_addr {
    union {
	uint8_t u6_addr8[16];
	uint16_t u6_addr16[8];
	uint32_t u6_addr32[4];
    } in6_u;
};

#define IN6ADDR_ANY_INIT	{ { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
#define IN6ADDR_LOOPBACK_INIT	{ { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }

#define IN_MULTICAST(a)	((((in_addr_t)(a))&0xf0000000)==0xe0000000)
#define INET_ADDRSTRLEN	16

struct sockaddr_in {
    sa_family_t sin_family;
    unsigned short sin_port;
    struct in_addr sin_addr;
    unsigned char sin_zero[8];
};

#define IN6_IS_ADDR_LINKLOCAL(a)	((((const uint32_t *) (a))[0] & htonl (0xffc00000)) == htonl (0xfe800000))
#define IN6_IS_ADDR_SITELOCAL(a)	((((const uint32_t *) (a))[0] & htonl (0xffc00000)) == htonl (0xfec00000))
#define IN6_ARE_ADDR_EQUAL(a,b)	((((const uint32_t *) (a))[0] == ((const uint32_t *) (b))[0]) && (((const uint32_t *) (a))[1] == ((const uint32_t *) (b))[1]) && (((const uint32_t *) (a))[2] == ((const uint32_t *) (b))[2]) && (((const uint32_t *) (a))[3] == ((const uint32_t *) (b))[3]))
#define IN6_IS_ADDR_V4COMPAT(a)	((((const uint32_t *) (a))[0] == 0) && (((const uint32_t *) (a))[1] == 0) && (((const uint32_t *) (a))[2] == 0) && (ntohl (((const uint32_t *) (a))[3]) > 1))
#define IN6_IS_ADDR_V4MAPPED(a)	((((const uint32_t *) (a))[0] == 0) && (((const uint32_t *) (a))[1] == 0) && (((const uint32_t *) (a))[2] == htonl (0xffff)))
#define IN6_IS_ADDR_UNSPECIFIED(a)	(((const uint32_t *) (a))[0] == 0 && ((const uint32_t *) (a))[1] == 0 && ((const uint32_t *) (a))[2] == 0 && ((const uint32_t *) (a))[3] == 0)
#define IN6_IS_ADDR_LOOPBACK(a)	(((const uint32_t *) (a))[0] == 0 && ((const uint32_t *) (a))[1] == 0 && ((const uint32_t *) (a))[2] == 0 && ((const uint32_t *) (a))[3] == htonl (1))
#define IN6_IS_ADDR_MULTICAST(a)	(((const uint8_t *) (a))[0] == 0xff)
#define IN6_IS_ADDR_MC_NODELOCAL(a)	(IN6_IS_ADDR_MULTICAST(a) && ((((const uint8_t *) (a))[1] & 0xf) == 0x1))
#define IN6_IS_ADDR_MC_LINKLOCAL(a)	(IN6_IS_ADDR_MULTICAST(a) && ((((const uint8_t *) (a))[1] & 0xf) == 0x2))
#define IN6_IS_ADDR_MC_SITELOCAL(a)	(IN6_IS_ADDR_MULTICAST(a) && ((((const uint8_t *) (a))[1] & 0xf) == 0x5))
#define IN6_IS_ADDR_MC_ORGLOCAL(a)	(IN6_IS_ADDR_MULTICAST(a) && ((((const uint8_t *) (a))[1] & 0xf) == 0x8))
#define IN6_IS_ADDR_MC_GLOBAL(a)	(IN6_IS_ADDR_MULTICAST(a) && ((((const uint8_t *) (a))[1] & 0xf) == 0xe))
#define INET6_ADDRSTRLEN	46

struct sockaddr_in6 {
    unsigned short sin6_family;
    uint16_t sin6_port;
    uint32_t sin6_flowinfo;
    struct in6_addr sin6_addr;
    uint32_t sin6_scope_id;
};

#define SOL_IP	0
#define IP_TOS	1		/* IP type of service and precedence */
#define IPV6_UNICAST_HOPS	16
#define IPV6_MULTICAST_IF	17
#define IPV6_MULTICAST_HOPS	18
#define IPV6_MULTICAST_LOOP	19
#define IP_TTL	2		/* IP time to live */
#define IPV6_JOIN_GROUP	20
#define IPV6_LEAVE_GROUP	21
#define IPV6_V6ONLY	26
#define IP_MULTICAST_IF	32	/* set/get IP multicast i/f */
#define IP_MULTICAST_TTL	33	/* set/get IP multicast ttl */
#define IP_MULTICAST_LOOP	34	/* set/get IP multicast loopback */
#define IP_ADD_MEMBERSHIP	35	/* add an IP group membership */
#define IP_DROP_MEMBERSHIP	36	/* drop an IP group membership */
#define IP_OPTIONS	4	/* IP per-packet options */
#define IPV6_ADD_MEMBERSHIP	IPV6_JOIN_GROUP
#define IPV6_DROP_MEMBERSHIP	IPV6_LEAVE_GROUP

struct ipv6_mreq {
    struct in6_addr ipv6mr_multiaddr;
    int ipv6mr_interface;
};
struct ip_mreq {
    struct in_addr imr_multiaddr;
    struct in_addr imr_interface;
};
extern int bindresvport(int, struct sockaddr_in *);
extern const struct in6_addr in6addr_any;
extern const struct in6_addr in6addr_loopback;

#define IPOPT_EOL
#define IPOPT_OPTVAL
#define IPOPT_TS_TSONLY
#define IPOPT_CLASS(o)	((o) & IPOPT_CLASS_MASK)
#define IPOPT_COPIED(o)	((o) & IPOPT_COPY)
#define IPOPT_NUMBER(o)	((o) & IPOPT_NUMBER_MASK)
#define IPOPT_CONTROL	0x00
#define IPOPT_SECUR_UNCLASS	0x0000
#define IPOPT_NUMBER_MASK	0x1f
#define IP_OFFMASK	0x1fff
#define IPOPT_RESERVED1	0x20
#define IP_MF	0x2000
#define IPOPT_DEBMEAS	0x40
#define IP_DF	0x4000
#define IPOPT_CLASS_MASK	0x60
#define IPOPT_RESERVED2	0x60
#define IPOPT_SECUR_TOPSECRET	0x6bc5
#define IPOPT_SECUR_EFTO	0x789a
#define IPOPT_COPY	0x80
#define IP_RF	0x8000
#define IPOPT_SECUR_RESTR	0xaf13
#define IPOPT_SECUR_MMMM	0xbc4d
#define IPOPT_SECUR_SECRET	0xd788
#define IPOPT_SECUR_CONFID	0xf135
#define IPOPT_NOP	1
#define IPOPT_OLEN	1
#define IPOPT_TS_TSANDADDR	1
#define IPTTLDEC	1
#define IPOPT_SECURITY	130
#define IPOPT_LSRR	131
#define IPOPT_SATID	136
#define IPOPT_SSRR	137
#define IPOPT_RA	148
#define IPOPT_OFFSET	2
#define MAXTTL	255
#define IPOPT_TS_PRESPEC	3
#define IPOPT_MINOFF	4
#define IPVERSION	4
#define MAX_IPOPTLEN	40
#define IP_MSS	576
#define IPFRAGTTL	60
#define IPDEFTTL	64
#define IP_MAXPACKET	65535
#define IPOPT_TS	68
#define IPOPT_RR	7
#define IPOPT_MEASUREMENT	IPOPT_DEBMEAS
#define IPOPT_END	IPOPT_EOL
#define IPOPT_NOOP	IPOPT_NOP
#define IPOPT_SID	IPOPT_SATID
#define IPOPT_SEC	IPOPT_SECURITY
#define IPOPT_TIMESTAMP	IPOPT_TS

#define IPTOS_TOS(tos)	((tos) & IPTOS_TOS_MASK)
#define IPTOS_LOWCOST	0x02
#define IPTOS_RELIABILITY	0x04
#define IPTOS_THROUGHPUT	0x08
#define IPTOS_LOWDELAY	0x10
#define IPTOS_TOS_MASK	0x1e
#define IPTOS_MINCOST	IPTOS_LOWCOST

#define IPTOS_PREC(tos)	((tos) & IPTOS_PREC_MASK)
#define IPTOS_PREC_MASK	0xe0

#define IP6OPT_PAD1
#define IP6OPT_TYPE(o)	((o) & 0xc0)
#define IP6OPT_TYPE_SKIP	0x00
#define IP6OPT_TUNNEL_LIMIT	0x04
#define IP6OPT_ROUTER_ALERT	0x05
#define IP6OPT_TYPE_MUTABLE	0x20
#define IP6OPT_TYPE_DISCARD	0x40
#define IP6OPT_TYPE_FORCEICMP	0x80
#define IP6OPT_TYPE_ICMP	0xc0
#define IP6OPT_JUMBO	0xc2
#define IP6OPT_NSAP_ADDR	0xc3
#define IP6OPT_PADN	1
#define IP6OPT_JUMBO_LEN	6
#define ip6_flow	ip6_ctlun.ip6_un1.ip6_un1_flow
#define ip6_hlim	ip6_ctlun.ip6_un1.ip6_un1_hlim
#define ip6_hops	ip6_ctlun.ip6_un1.ip6_un1_hlim
#define ip6_nxt	ip6_ctlun.ip6_un1.ip6_un1_nxt
#define ip6_plen	ip6_ctlun.ip6_un1.ip6_un1_plen
#define ip6_vfc	ip6_ctlun.ip6_un2_vfc

struct ip6_hdrctl {
    uint32_t ip6_un1_flow;
    uint16_t ip6_un1_plen;
    uint8_t ip6_un1_nxt;
    uint8_t ip6_un1_hlim;
};
struct ip6_hdr {
    struct in6_addr ip6_src;
    struct in6_addr ip6_dst;
};
struct ip6_ext {
    uint8_t ip6e_nxt;
    uint8_t ip6e_len;
};
struct ip6_hbh {
    uint8_t ip6h_nxt;
    uint8_t ip6h_len;
};
struct ip6_dest {
    uint8_t ip6d_nxt;
    uint8_t ip6d_len;
};
struct ip6_rthdr {
    uint8_t ip6r_nxt;
    uint8_t ip6r_len;
    uint8_t ip6r_type;
    uint8_t ip6r_segleft;
};
struct ip6_frag {
    uint8_t ip6f_nxt;
    uint8_t ip6f_reserved;
    uint16_t ip6f_offlg;
    uint32_t ip6f_ident;
};
struct ip6_opt {
    uint8_t ip6o_type;
    uint8_t ip6o_len;
};
struct ip6_opt_jumbo {
    uint8_t ip6oj_type;
    uint8_t ip6oj_len;
    uint8_t ip6oj_jumbo_len[4];
};
struct ip6_opt_nsap {
    uint8_t ip6on_type;
    uint8_t ip6on_len;
    uint8_t ip6on_src_nsap_len;
    uint8_t ip6on_dst_nsap_len;
};
struct ip6_opt_tunnel {
    uint8_t ip6ot_type;
    uint8_t ip6ot_len;
    uint8_t ip6ot_encap_limit;
};
struct ip6_opt_router {
    uint8_t ip6or_type;
    uint8_t ip6or_len;
    uint8_t ip6or_value[2];
};

#define TCPOLEN_TSTAMP_APPA	(TCPOLEN_TIMESTAMP+2)
#define TCPOPT_TSTAMP_HDR	(TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP)
#define TCPOPT_EOL	0
#define TCPI_OPT_TIMESTAMPS	1
#define TCPOPT_NOP	1
#define TCP_NODELAY	1
#define TCPOLEN_TIMESTAMP	10
#define TCP_WINDOW_CLAMP	10
#define TCP_INFO	11
#define TCP_QUICKACK	12
#define TCP_CONGESTION	13
#define TCP_MAX_WINSHIFT	14
#define TCPI_OPT_SACK	2
#define TCPOLEN_SACK_PERMITTED	2
#define TCPOPT_MAXSEG	2
#define TCP_MAXSEG	2
#define TCPOLEN_WINDOW	3
#define TCPOPT_WINDOW	3
#define TCP_CORK	3
#define TCPI_OPT_WSCALE	4
#define TCPOLEN_MAXSEG	4
#define TCPOPT_SACK_PERMITTED	4
#define TCP_KEEPIDLE	4
#define TCPOPT_SACK	5
#define TCP_KEEPINTVL	5
#define TCP_MSS	512
#define SOL_TCP	6
#define TCP_KEEPCNT	6
#define TCP_MAXWIN	65535
#define TCP_SYNCNT	7
#define TCPI_OPT_ECN	8
#define TCPOPT_TIMESTAMP	8
#define TCP_LINGER2	8
#define TCP_DEFER_ACCEPT	9

enum tcp_ca_state {
    TCP_CA_Open,
    TCP_CA_Disorder,
    TCP_CA_CWR,
    TCP_CA_Recovery,
    TCP_CA_Loss
};
struct tcp_info {
    uint8_t tcpi_state;
    uint8_t tcpi_ca_state;
    uint8_t tcpi_retransmits;
    uint8_t tcpi_probes;
    uint8_t tcpi_backoff;
    uint8_t tcpi_options;
    uint8_t tcpi_snd_wscale:4;
    uint8_t tcpi_rcv_wscale:4;
    uint32_t tcpi_rto;
    uint32_t tcpi_ato;
    uint32_t tcpi_snd_mss;
    uint32_t tcpi_rcv_mss;
    uint32_t tcpi_unacked;
    uint32_t tcpi_sacked;
    uint32_t tcpi_lost;
    uint32_t tcpi_retrans;
    uint32_t tcpi_fackets;
    uint32_t tcpi_last_data_sent;
    uint32_t tcpi_last_ack_sent;
    uint32_t tcpi_last_data_recv;
    uint32_t tcpi_last_ack_recv;
    uint32_t tcpi_pmtu;
    uint32_t tcpi_rcv_ssthresh;
    uint32_t tcpi_rtt;
    uint32_t tcpi_rttvar;
    uint32_t tcpi_snd_ssthresh;
    uint32_t tcpi_snd_cwnd;
    uint32_t tcpi_advmss;
    uint32_t tcpi_reordering;
};
enum {
    TCP_ESTABLISHED = 1,
    TCP_SYN_SENT = 2,
    TCP_SYN_RECV = 3,
    TCP_FIN_WAIT1 = 4,
    TCP_FIN_WAIT2 = 5,
    TCP_TIME_WAIT = 6,
    TCP_CLOSE = 7,
    TCP_CLOSE_WAIT = 8,
    TCP_LAST_ACK = 9,
    TCP_LISTEN = 10,
    TCP_CLOSING = 11
};

#define SOL_UDP	17

struct udphdr {
    u_int16_t source;
    u_int16_t dest;
    u_int16_t len;
    u_int16_t check;
};

#define NL_CAT_LOCALE	1
#define NL_SETD	1

typedef void *nl_catd;

typedef int nl_item;
extern int catclose(nl_catd);
extern char *catgets(nl_catd, int, int, const char *);
extern nl_catd catopen(const char *, int);

extern int poll(struct pollfd *, nfds_t, int);

extern int openpty(int *, int *, char *, struct termios *,
		   struct winsize *);
extern int forkpty(int *, char *, struct termios *, struct winsize *);

struct passwd {
    char *pw_name;
    char *pw_passwd;
    uid_t pw_uid;
    gid_t pw_gid;
    char *pw_gecos;
    char *pw_dir;
    char *pw_shell;
};
extern int getpwent_r(struct passwd *, char *, size_t, struct passwd **);
extern void endpwent(void);
extern struct passwd *getpwent(void);
extern struct passwd *getpwnam(const char *);
extern struct passwd *getpwuid(uid_t);
extern void setpwent(void);
extern int getpwnam_r(const char *, struct passwd *, char *, size_t,
		      struct passwd **);
extern int getpwuid_r(uid_t, struct passwd *, char *, size_t,
		      struct passwd **);

#define RE_DUP_MAX	(0x7fff)

typedef unsigned long int reg_syntax_t;

typedef struct re_pattern_buffer {
    unsigned char *buffer;
    unsigned long int allocated;
    unsigned long int used;
    reg_syntax_t syntax;
    char *fastmap;
    char *translate;
    size_t re_nsub;
    unsigned int can_be_null:1;
    unsigned int regs_allocated:2;
    unsigned int fastmap_accurate:1;
    unsigned int no_sub:1;
    unsigned int not_bol:1;
    unsigned int not_eol:1;
    unsigned int newline_anchor:1;
} regex_t;
typedef int regoff_t;
typedef struct {
    regoff_t rm_so;
    regoff_t rm_eo;
} regmatch_t;

#define REG_ICASE	(REG_EXTENDED<<1)
#define REG_NEWLINE	(REG_ICASE<<1)
#define REG_NOSUB	(REG_NEWLINE<<1)
#define REG_EXTENDED	1

#define REG_NOTEOL	(1<<1)
#define REG_NOTBOL	1

typedef enum {
    REG_ENOSYS = -1,
    REG_NOERROR = 0,
    REG_NOMATCH = 1,
    REG_BADPAT = 2,
    REG_ECOLLATE = 3,
    REG_ECTYPE = 4,
    REG_EESCAPE = 5,
    REG_ESUBREG = 6,
    REG_EBRACK = 7,
    REG_EPAREN = 8,
    REG_EBRACE = 9,
    REG_BADBR = 10,
    REG_ERANGE = 11,
    REG_ESPACE = 12,
    REG_BADRPT = 13,
    REG_EEND = 14,
    REG_ESIZE = 15,
    REG_ERPAREN = 16
} reg_errcode_t;
extern int regcomp(regex_t *, const char *, int);
extern size_t regerror(int, const regex_t *, char *, size_t);
extern int regexec(const regex_t *, const char *, size_t, regmatch_t[],
		   int);
extern void regfree(regex_t *);

#define auth_destroy(auth)	((*((auth)->ah_ops->ah_destroy))(auth))

enum auth_stat {
    AUTH_OK = 0,
    AUTH_BADCRED = 1,
    AUTH_REJECTEDCRED = 2,
    AUTH_BADVERF = 3,
    AUTH_REJECTEDVERF = 4,
    AUTH_TOOWEAK = 5,
    AUTH_INVALIDRESP = 6,
    AUTH_FAILED = 7
};

union des_block {
    struct {
	u_int32_t high;
	u_int32_t low;
    } key;
    char c[8];
};

struct opaque_auth {
    enum_t oa_flavor;
    caddr_t oa_base;
    u_int oa_length;
};

typedef struct AUTH {
    struct opaque_auth ah_cred;
    struct opaque_auth ah_verf;
    union des_block ah_key;
    struct auth_ops *ah_ops;
    caddr_t ah_private;
} AUTH;

struct auth_ops {
    void (*ah_nextverf) (struct AUTH *);
    int (*ah_marshal) (struct AUTH *, XDR *);
    int (*ah_validate) (struct AUTH *, struct opaque_auth *);
    int (*ah_refresh) (struct AUTH *);
    void (*ah_destroy) (struct AUTH *);
};
extern struct AUTH *authnone_create(void);
extern int key_decryptsession(char *, union des_block *);
extern bool_t xdr_opaque_auth(XDR *, struct opaque_auth *);

#define clnt_control(cl,rq,in)	((*(cl)->cl_ops->cl_control)(cl,rq,in))
#define clnt_abort(rh)	((*(rh)->cl_ops->cl_abort)(rh))
#define clnt_destroy(rh)	((*(rh)->cl_ops->cl_destroy)(rh))
#define clnt_freeres(rh,xres,resp)	((*(rh)->cl_ops->cl_freeres)(rh,xres,resp))
#define clnt_geterr(rh,errp)	((*(rh)->cl_ops->cl_geterr)(rh, errp))
#define NULLPROC	((u_long)0)	/* By convention, procedure 0 takes null arguments and returns */
#define CLSET_TIMEOUT	1	/* set timeout (timeval) */
#define CLGET_XID	10	/* Get xid */
#define CLSET_XID	11	/* Set xid */
#define CLGET_VERS	12	/* Get version number */
#define CLSET_VERS	13	/* Set version number */
#define CLGET_PROG	14	/* Get program number */
#define CLSET_PROG	15	/* Set program number */
#define CLGET_TIMEOUT	2	/* get timeout (timeval) */
#define CLGET_SERVER_ADDR	3	/* get server's address (sockaddr) */
#define CLSET_RETRY_TIMEOUT	4	/* set retry timeout (timeval) */
#define CLGET_RETRY_TIMEOUT	5	/* get retry timeout (timeval) */
#define CLGET_FD	6	/* get connections file descriptor */
#define CLGET_SVC_ADDR	7	/* get server's address (netbuf) */
#define CLSET_FD_CLOSE	8	/* close fd while clnt_destroy */
#define CLSET_FD_NCLOSE	9	/* Do not close fd while clnt_destroy */
#define clnt_call(rh, proc, xargs, argsp, xres, resp, secs)	\
	((*(rh)->cl_ops->cl_call)(rh, proc, xargs, argsp, xres, resp, secs))

enum clnt_stat {
    RPC_SUCCESS = 0,
    RPC_CANTENCODEARGS = 1,
    RPC_CANTDECODERES = 2,
    RPC_CANTSEND = 3,
    RPC_CANTRECV = 4,
    RPC_TIMEDOUT = 5,
    RPC_VERSMISMATCH = 6,
    RPC_AUTHERROR = 7,
    RPC_PROGUNAVAIL = 8,
    RPC_PROGVERSMISMATCH = 9,
    RPC_PROCUNAVAIL = 10,
    RPC_CANTDECODEARGS = 11,
    RPC_SYSTEMERROR = 12,
    RPC_NOBROADCAST = 21,
    RPC_UNKNOWNHOST = 13,
    RPC_UNKNOWNPROTO = 17,
    RPC_UNKNOWNADDR = 19,
    RPC_RPCBFAILURE = 14,
    RPC_PROGNOTREGISTERED = 15,
    RPC_N2AXLATEFAILURE = 22,
    RPC_FAILED = 16,
    RPC_INTR = 18,
    RPC_TLIERROR = 20,
    RPC_UDERROR = 23,
    RPC_INPROGRESS = 24,
    RPC_STALERACHANDLE = 25
};
struct rpc_err {
    enum clnt_stat re_status;
    union {
	int RE_errno;
	enum auth_stat RE_why;
	struct {
	    u_long low;
	    u_long high;
	} RE_vers;
	struct {
	    long int s1;
	    long int s2;
	} RE_lb;
    } ru;
};

typedef struct CLIENT {
    struct AUTH *cl_auth;
    struct clnt_ops *cl_ops;
    caddr_t cl_private;
} CLIENT;

struct clnt_ops {
    enum clnt_stat (*cl_call) (struct CLIENT *, u_long, xdrproc_t, caddr_t,
			       xdrproc_t, caddr_t, struct timeval);
    void (*cl_abort) (void);
    void (*cl_geterr) (struct CLIENT *, struct rpc_err *);
     bool_t(*cl_freeres) (struct CLIENT *, xdrproc_t, caddr_t);
    void (*cl_destroy) (struct CLIENT *);
     bool_t(*cl_control) (struct CLIENT *, int, char *);
};
extern struct CLIENT *clntraw_create(u_long, u_long);
extern struct CLIENT *clnttcp_create(struct sockaddr_in *, u_long, u_long,
				     int *, u_int, u_int);
extern struct CLIENT *clntudp_bufcreate(struct sockaddr_in *, u_long,
					u_long, struct timeval, int *,
					u_int, u_int);
extern struct CLIENT *clntudp_create(struct sockaddr_in *, u_long, u_long,
				     struct timeval, int *);
extern int callrpc(const char *, const u_long, const u_long, const u_long,
		   const xdrproc_t, const char *, const xdrproc_t, char *);
extern struct CLIENT *clnt_create(const char *, const u_long, const u_long,
				  const char *);
extern void clnt_pcreateerror(const char *);
extern void clnt_perrno(enum clnt_stat);
extern void clnt_perror(struct CLIENT *, const char *);
extern char *clnt_spcreateerror(const char *);
extern char *clnt_sperrno(enum clnt_stat);
extern char *clnt_sperror(struct CLIENT *, const char *);

extern u_short pmap_getport(struct sockaddr_in *, const u_long,
			    const u_long, u_int);
extern bool_t pmap_set(const u_long, const u_long, int, u_short);
extern bool_t pmap_unset(u_long, u_long);

enum msg_type {
    CALL = 0,
    REPLY = 1
};
enum reply_stat {
    MSG_ACCEPTED = 0,
    MSG_DENIED = 1
};
enum accept_stat {
    SUCCESS = 0,
    PROG_UNAVAIL = 1,
    PROG_MISMATCH = 2,
    PROC_UNAVAIL = 3,
    GARBAGE_ARGS = 4,
    SYSTEM_ERR = 5
};
enum reject_stat {
    RPC_MISMATCH = 0,
    AUTH_ERROR = 1
};

#define ar_results	ru.AR_results
#define ar_vers	ru.AR_versions

struct accepted_reply {
    struct opaque_auth ar_verf;
    enum accept_stat ar_stat;
    union {
	struct {
	    unsigned long int low;
	    unsigned long int high;
	} AR_versions;
	struct {
	    caddr_t where;
	    xdrproc_t proc;
	} AR_results;
    } ru;
};

#define rj_vers	ru.RJ_versions
#define rj_why	ru.RJ_why

struct rejected_reply {
    enum reject_stat rj_stat;
    union {
	struct {
	    unsigned long int low;
	    unsigned long int high;
	} RJ_versions;
	enum auth_stat RJ_why;
    } ru;
};

#define rp_acpt	ru.RP_ar
#define rp_rjct	ru.RP_dr

struct reply_body {
    enum reply_stat rp_stat;
    union {
	struct accepted_reply RP_ar;
	struct rejected_reply RP_dr;
    } ru;
};

struct call_body {
    unsigned long int cb_rpcvers;
    unsigned long int cb_prog;
    unsigned long int cb_vers;
    unsigned long int cb_proc;
    struct opaque_auth cb_cred;
    struct opaque_auth cb_verf;
};

#define rm_call	ru.RM_cmb
#define rm_reply	ru.RM_rmb
#define acpted_rply	ru.RM_rmb.ru.RP_ar
#define rjcted_rply	ru.RM_rmb.ru.RP_dr

struct rpc_msg {
    unsigned long int rm_xid;
    enum msg_type rm_direction;
    union {
	struct call_body RM_cmb;
	struct reply_body RM_rmb;
    } ru;
};
extern bool_t xdr_accepted_reply(XDR *, struct accepted_reply *);
extern bool_t xdr_callhdr(XDR *, struct rpc_msg *);
extern bool_t xdr_callmsg(XDR *, struct rpc_msg *);
extern bool_t xdr_rejected_reply(XDR *, struct rejected_reply *);
extern bool_t xdr_replymsg(XDR *, struct rpc_msg *);

#define svc_getcaller(x)	(&(x)->xp_raddr)
#define svc_destroy(xprt)	(*(xprt)->xp_ops->xp_destroy)(xprt)
#define svc_recv(xprt,msg)	(*(xprt)->xp_ops->xp_recv)((xprt), (msg))
#define svc_reply(xprt,msg)	(*(xprt)->xp_ops->xp_reply) ((xprt), (msg))
#define svc_stat(xprt)	(*(xprt)->xp_ops->xp_stat)(xprt)
#define RPC_ANYSOCK	-1
#define svc_freeargs(xprt,xargs, argsp)	\
	(*(xprt)->xp_ops->xp_freeargs)((xprt), (xargs), (argsp))
#define svc_getargs(xprt,xargs, argsp)	\
	(*(xprt)->xp_ops->xp_getargs)((xprt), (xargs), (argsp))

enum xprt_stat {
    XPRT_DIED,
    XPRT_MOREREQS,
    XPRT_IDLE
};

typedef struct SVCXPRT {
    int xp_sock;
    u_short xp_port;
    struct xp_ops *xp_ops;
    int xp_addrlen;
    struct sockaddr_in xp_raddr;
    struct opaque_auth xp_verf;
    caddr_t xp_p1;
    caddr_t xp_p2;
    char xp_pad[256];
} SVCXPRT;

struct svc_req {
    rpcprog_t rq_prog;
    rpcvers_t rq_vers;
    rpcproc_t rq_proc;
    struct opaque_auth rq_cred;
    caddr_t rq_clntcred;
    SVCXPRT *rq_xprt;
};

typedef void (*__dispatch_fn_t) (struct svc_req *, SVCXPRT *);

struct xp_ops {
    bool_t(*xp_recv) (SVCXPRT * __xprt, struct rpc_msg * __msg);
    enum xprt_stat (*xp_stat) (SVCXPRT * __xprt);
     bool_t(*xp_getargs) (SVCXPRT * __xprt, xdrproc_t __xdr_args,
			  caddr_t args_ptr);
     bool_t(*xp_reply) (SVCXPRT * __xprt, struct rpc_msg * __msg);
     bool_t(*xp_freeargs) (SVCXPRT * __xprt, xdrproc_t __xdr_args,
			   caddr_t args_ptr);
    void (*xp_destroy) (SVCXPRT * __xprt);
};
extern SVCXPRT *svcraw_create(void);
extern void svc_getreqset(fd_set *);
extern bool_t svc_register(SVCXPRT *, rpcprog_t, rpcvers_t,
			   __dispatch_fn_t, rpcprot_t);
extern void svc_run(void);
extern bool_t svc_sendreply(SVCXPRT *, xdrproc_t, caddr_t);
extern void svcerr_auth(SVCXPRT *, enum auth_stat);
extern void svcerr_decode(SVCXPRT *);
extern void svcerr_noproc(SVCXPRT *);
extern void svcerr_noprog(SVCXPRT *);
extern void svcerr_progvers(SVCXPRT *, rpcvers_t, rpcvers_t);
extern void svcerr_systemerr(SVCXPRT *);
extern void svcerr_weakauth(SVCXPRT *);
extern SVCXPRT *svctcp_create(int, u_int, u_int);
extern SVCXPRT *svcudp_create(int);