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Xauth.h

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#ifndef _Xauth_h
#define _Xauth_h

/* struct xauth is full of implicit padding to properly align the pointers
   after the length fields.   We can't clean that up without breaking ABI,
   so tell clang not to bother complaining about it. */
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

typedef struct xauth {
    unsigned short   family;
    unsigned short   address_length;
    char    	    *address;
    unsigned short   number_length;
    char    	    *number;
    unsigned short   name_length;
    char    	    *name;
    unsigned short   data_length;
    char   	    *data;
} Xauth;

#ifdef __clang__
#pragma clang diagnostic pop
#endif

#ifndef _XAUTH_STRUCT_ONLY

# include   <X11/Xfuncproto.h>
# include   <X11/Xfuncs.h>

# include   <stdio.h>

# define FamilyLocal (256)	/* not part of X standard (i.e. X.h) */
# define FamilyWild  (65535)
# define FamilyNetname    (254)   /* not part of X standard */
# define FamilyKrb5Principal (253) /* Kerberos 5 principal name */
# define FamilyLocalHost (252)	/* for local non-net authentication */

_XFUNCPROTOBEGIN

char *XauFileName(void);

Xauth *XauReadAuth(
FILE*	/* auth_file */
);

int XauLockAuth(
_Xconst char*	/* file_name */,
int		/* retries */,
int		/* timeout */,
long		/* dead */
);

int XauUnlockAuth(
_Xconst char*	/* file_name */
);

int XauWriteAuth(
FILE*		/* auth_file */,
Xauth*		/* auth */
);

Xauth *XauGetAuthByAddr(
#if NeedWidePrototypes
unsigned int	/* family */,
unsigned int	/* address_length */,
#else
unsigned short	/* family */,
unsigned short	/* address_length */,
#endif
_Xconst char*	/* address */,
#if NeedWidePrototypes
unsigned int	/* number_length */,
#else
unsigned short	/* number_length */,
#endif
_Xconst char*	/* number */,
#if NeedWidePrototypes
unsigned int	/* name_length */,
#else
unsigned short	/* name_length */,
#endif
_Xconst char*	/* name */
);

Xauth *XauGetBestAuthByAddr(
#if NeedWidePrototypes
unsigned int	/* family */,
unsigned int	/* address_length */,
#else
unsigned short	/* family */,
unsigned short	/* address_length */,
#endif
_Xconst char*	/* address */,
#if NeedWidePrototypes
unsigned int	/* number_length */,
#else
unsigned short	/* number_length */,
#endif
_Xconst char*	/* number */,
int		/* types_length */,
char**		/* type_names */,
_Xconst int*	/* type_lengths */
);

void XauDisposeAuth(
Xauth*		/* auth */
);

_XFUNCPROTOEND

/* Return values from XauLockAuth */

# define LOCK_SUCCESS	0	/* lock succeeded */
# define LOCK_ERROR	1	/* lock unexpectely failed, check errno */
# define LOCK_TIMEOUT	2	/* lock failed, timeouts expired */

#endif /* _XAUTH_STRUCT_ONLY */

#endif /* _Xauth_h */

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