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Edit File: Xtrans.h

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documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
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The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* Copyright 1993, 1994 NCR Corporation - Dayton, Ohio, USA
 *
 * All Rights Reserved
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose and without fee is hereby granted, provided
 * that the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name NCR not be used in advertising
 * or publicity pertaining to distribution of the software without specific,
 * written prior permission.  NCR makes no representations about the
 * suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 *
 * NCR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
 * NO EVENT SHALL NCR BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
 * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _XTRANS_H_
#define _XTRANS_H_

#include <X11/Xfuncproto.h>
#include <X11/Xos.h>
#include <X11/Xmd.h>

#ifndef WIN32
#include <sys/socket.h>
#endif

#ifdef __clang__
/* Not all clients make use of all provided statics */
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-function"
#endif

/*
 * Set the functions names according to where this code is being compiled.
 */

#ifdef X11_t
#define TRANS(func) _X11Trans##func
#ifdef XTRANSDEBUG
static const char *__xtransname = "_X11Trans";
#endif
#endif /* X11_t */

#ifdef XSERV_t
#define TRANS(func) _XSERVTrans##func
#ifdef XTRANSDEBUG
static const char *__xtransname = "_XSERVTrans";
#endif
#define X11_t
#endif /* XSERV_t */

#ifdef XIM_t
#define TRANS(func) _XimXTrans##func
#ifdef XTRANSDEBUG
static const char *__xtransname = "_XimTrans";
#endif
#endif /* XIM_t */

#ifdef FS_t
#define TRANS(func) _FSTrans##func
#ifdef XTRANSDEBUG
static const char *__xtransname = "_FSTrans";
#endif
#endif /* FS_t */

#ifdef FONT_t
#define TRANS(func) _FontTrans##func
#ifdef XTRANSDEBUG
static const char *__xtransname = "_FontTrans";
#endif
#endif /* FONT_t */

#ifdef ICE_t
#define TRANS(func) _IceTrans##func
#ifdef XTRANSDEBUG
static const char *__xtransname = "_IceTrans";
#endif
#endif /* ICE_t */

#if !defined(TRANS)
#define TRANS(func) _XTrans##func
#ifdef XTRANSDEBUG
static const char *__xtransname = "_XTrans";
#endif
#endif /* !TRANS */

#ifdef __clang__
#pragma clang diagnostic pop
#endif

/*
 * Create a single address structure that can be used wherever
 * an address structure is needed. struct sockaddr is not big enough
 * to hold a sockadd_un, so we create this definition to have a single
 * structure that is big enough for all the structures we might need.
 *
 * This structure needs to be independent of the socket/TLI interface used.
 */

#if defined(IPv6) && defined(AF_INET6)
typedef struct sockaddr_storage Xtransaddr;
#else
#define XTRANS_MAX_ADDR_LEN	128	/* large enough to hold sun_path */

typedef	struct {
    unsigned char	addr[XTRANS_MAX_ADDR_LEN];
} Xtransaddr;
#endif

#ifdef LONG64
typedef int BytesReadable_t;
#else
typedef long BytesReadable_t;
#endif

#if defined(WIN32) || defined(USG)

/*
 *      TRANS(Readv) and TRANS(Writev) use struct iovec, normally found
 *      in Berkeley systems in <sys/uio.h>.  See the readv(2) and writev(2)
 *      manual pages for details.
 */

struct iovec {
    caddr_t iov_base;
    int iov_len;
};

#else
#include <sys/uio.h>
#endif

typedef struct _XtransConnInfo *XtransConnInfo;

/*
 * Transport Option definitions
 */

#define TRANS_NONBLOCKING	1
#define	TRANS_CLOSEONEXEC	2

/*
 * Return values of Connect (0 is success)
 */

#define TRANS_CONNECT_FAILED 	-1
#define TRANS_TRY_CONNECT_AGAIN -2
#define TRANS_IN_PROGRESS	-3

/*
 * Return values of CreateListener (0 is success)
 */

#define TRANS_CREATE_LISTENER_FAILED 	-1
#define TRANS_ADDR_IN_USE		-2

/*
 * Return values of Accept (0 is success)
 */

#define TRANS_ACCEPT_BAD_MALLOC			-1
#define TRANS_ACCEPT_FAILED 			-2
#define TRANS_ACCEPT_MISC_ERROR			-3

/*
 * ResetListener return values
 */

#define TRANS_RESET_NOOP	1
#define TRANS_RESET_NEW_FD	2
#define TRANS_RESET_FAILURE	3

/*
 * Function prototypes for the exposed interface
 */

void TRANS(FreeConnInfo) (
    XtransConnInfo 	/* ciptr */
);

#ifdef TRANS_CLIENT

XtransConnInfo TRANS(OpenCOTSClient)(
    const char *	/* address */
);

#endif /* TRANS_CLIENT */

#ifdef TRANS_SERVER

XtransConnInfo TRANS(OpenCOTSServer)(
    const char *	/* address */
);

#endif /* TRANS_SERVER */

#ifdef TRANS_REOPEN

XtransConnInfo TRANS(ReopenCOTSServer)(
    int,		/* trans_id */
    int,		/* fd */
    const char *	/* port */
);

int TRANS(GetReopenInfo)(
    XtransConnInfo,	/* ciptr */
    int *,		/* trans_id */
    int *,		/* fd */
    char **		/* port */
);

#endif /* TRANS_REOPEN */

int TRANS(SetOption)(
    XtransConnInfo,	/* ciptr */
    int,		/* option */
    int			/* arg */
);

#ifdef TRANS_SERVER

int TRANS(CreateListener)(
    XtransConnInfo,	/* ciptr */
    const char *,	/* port */
    unsigned int	/* flags */
);

int TRANS(Received) (
    const char*         /* protocol*/
);

int TRANS(NoListen) (
    const char*         /* protocol*/
);

int TRANS(Listen) (
    const char*         /* protocol*/
);

int TRANS(IsListening) (
    const char*         /* protocol*/
);

int TRANS(ResetListener)(
    XtransConnInfo	/* ciptr */
);

XtransConnInfo TRANS(Accept)(
    XtransConnInfo,	/* ciptr */
    int *		/* status */
);

#endif /* TRANS_SERVER */

#ifdef TRANS_CLIENT

int TRANS(Connect)(
    XtransConnInfo,	/* ciptr */
    const char *	/* address */
);

#endif /* TRANS_CLIENT */

int TRANS(BytesReadable)(
    XtransConnInfo,	/* ciptr */
    BytesReadable_t *	/* pend */
);

int TRANS(Read)(
    XtransConnInfo,	/* ciptr */
    char *,		/* buf */
    int			/* size */
);

int TRANS(Write)(
    XtransConnInfo,	/* ciptr */
    char *,		/* buf */
    int			/* size */
);

int TRANS(Readv)(
    XtransConnInfo,	/* ciptr */
    struct iovec *,	/* buf */
    int			/* size */
);

int TRANS(Writev)(
    XtransConnInfo,	/* ciptr */
    struct iovec *,	/* buf */
    int			/* size */
);

int TRANS(SendFd) (XtransConnInfo ciptr, int fd, int do_close);

int TRANS(RecvFd) (XtransConnInfo ciptr);

int TRANS(Disconnect)(
    XtransConnInfo	/* ciptr */
);

int TRANS(Close)(
    XtransConnInfo	/* ciptr */
);

int TRANS(CloseForCloning)(
    XtransConnInfo	/* ciptr */
);

int TRANS(IsLocal)(
    XtransConnInfo	/* ciptr */
);

int TRANS(GetPeerAddr)(
    XtransConnInfo,	/* ciptr */
    int *,		/* familyp */
    int *,		/* addrlenp */
    Xtransaddr **	/* addrp */
);

int TRANS(GetConnectionNumber)(
    XtransConnInfo	/* ciptr */
);

#ifdef TRANS_SERVER

int TRANS(MakeAllCOTSServerListeners)(
    const char *,	/* port */
    int *,		/* partial */
    int *,		/* count_ret */
    XtransConnInfo **	/* ciptrs_ret */
);

#endif /* TRANS_SERVER */

/*
 * Function Prototypes for Utility Functions.
 */

#ifdef X11_t

int TRANS(ConvertAddress)(
    int *,		/* familyp */
    int *,		/* addrlenp */
    Xtransaddr **	/* addrp */
);

#endif /* X11_t */

#ifdef ICE_t

char *
TRANS(GetMyNetworkId)(
    XtransConnInfo	/* ciptr */
);

char *
TRANS(GetPeerNetworkId)(
    XtransConnInfo	/* ciptr */
);

#endif /* ICE_t */

int
TRANS(GetHostname) (
    char *	/* buf */,
    int 	/* maxlen */
);

#if defined(WIN32) && defined(TCPCONN)
int TRANS(WSAStartup)();
#endif

#endif /* _XTRANS_H_ */