465 lines
11 KiB
C
465 lines
11 KiB
C
/*
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Copyright 1993, 1994, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall
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not be used in advertising or otherwise to promote the sale, use or
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other dealings in this Software without prior written authorization
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from The Open Group.
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* Copyright 1993, 1994 NCR Corporation - Dayton, Ohio, USA
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*
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* All Rights Reserved
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for any purpose and without fee is hereby granted, provided
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* that the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name NCR not be used in advertising
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* or publicity pertaining to distribution of the software without specific,
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* written prior permission. NCR makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* NCR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
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* NO EVENT SHALL NCR BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _XTRANSINT_H_
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#define _XTRANSINT_H_
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/*
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* XTRANSDEBUG will enable the PRMSG() macros used in the X Transport
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* Interface code. Each use of the PRMSG macro has a level associated with
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* it. XTRANSDEBUG is defined to be a level. If the invocation level is =<
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* the value of XTRANSDEBUG, then the message will be printed out to stderr.
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* Recommended levels are:
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*
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* XTRANSDEBUG=1 Error messages
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* XTRANSDEBUG=2 API Function Tracing
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* XTRANSDEBUG=3 All Function Tracing
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* XTRANSDEBUG=4 printing of intermediate values
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* XTRANSDEBUG=5 really detailed stuff
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#define XTRANSDEBUG 2
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*
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* Defining XTRANSDEBUGTIMESTAMP will cause printing timestamps with each
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* message.
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*/
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#if !defined(XTRANSDEBUG) && defined(XTRANS_TRANSPORT_C)
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# define XTRANSDEBUG 1
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#endif
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#ifdef WIN32
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# define _WILLWINSOCK_
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#endif
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#include "Xtrans.h"
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#ifndef _X_UNUSED /* Defined in Xfuncproto.h in xproto >= 7.0.22 */
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# define _X_UNUSED /* */
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#endif
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#ifdef XTRANSDEBUG
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# include <stdio.h>
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#endif /* XTRANSDEBUG */
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#include <errno.h>
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#ifndef WIN32
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# include <sys/socket.h>
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# include <netinet/in.h>
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# include <arpa/inet.h>
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/*
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* Moved the setting of NEED_UTSNAME to this header file from Xtrans.c,
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* to avoid a race condition. JKJ (6/5/97)
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*/
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# if defined(_POSIX_SOURCE) || defined(USG) || defined(SVR4) || defined(__SVR4) || defined(__SCO__)
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# ifndef NEED_UTSNAME
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# define NEED_UTSNAME
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# endif
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# include <sys/utsname.h>
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# endif
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# define ESET(val) errno = val
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# define EGET() errno
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#else /* WIN32 */
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# include <limits.h> /* for USHRT_MAX */
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# define ESET(val) WSASetLastError(val)
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# define EGET() WSAGetLastError()
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#endif /* WIN32 */
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#include <stddef.h>
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#ifdef X11_t
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#define X_TCP_PORT 6000
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#endif
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#if XTRANS_SEND_FDS
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struct _XtransConnFd {
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struct _XtransConnFd *next;
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int fd;
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int do_close;
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};
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#endif
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struct _XtransConnInfo {
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struct _Xtransport *transptr;
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int index;
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char *priv;
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int flags;
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int fd;
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char *port;
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int family;
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char *addr;
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int addrlen;
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char *peeraddr;
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int peeraddrlen;
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struct _XtransConnFd *recv_fds;
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struct _XtransConnFd *send_fds;
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};
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#define XTRANS_OPEN_COTS_CLIENT 1
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#define XTRANS_OPEN_COTS_SERVER 2
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#define XTRANS_OPEN_CLTS_CLIENT 3
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#define XTRANS_OPEN_CLTS_SERVER 4
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typedef struct _Xtransport {
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const char *TransName;
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int flags;
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#ifdef TRANS_CLIENT
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XtransConnInfo (*OpenCOTSClient)(
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struct _Xtransport *, /* transport */
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char *, /* protocol */
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char *, /* host */
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char * /* port */
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);
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#endif /* TRANS_CLIENT */
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#ifdef TRANS_SERVER
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const char ** nolisten;
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XtransConnInfo (*OpenCOTSServer)(
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struct _Xtransport *, /* transport */
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char *, /* protocol */
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char *, /* host */
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char * /* port */
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);
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#endif /* TRANS_SERVER */
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#ifdef TRANS_CLIENT
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XtransConnInfo (*OpenCLTSClient)(
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struct _Xtransport *, /* transport */
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char *, /* protocol */
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char *, /* host */
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char * /* port */
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);
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#endif /* TRANS_CLIENT */
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#ifdef TRANS_SERVER
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XtransConnInfo (*OpenCLTSServer)(
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struct _Xtransport *, /* transport */
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char *, /* protocol */
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char *, /* host */
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char * /* port */
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);
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#endif /* TRANS_SERVER */
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#ifdef TRANS_REOPEN
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XtransConnInfo (*ReopenCOTSServer)(
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struct _Xtransport *, /* transport */
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int, /* fd */
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char * /* port */
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);
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XtransConnInfo (*ReopenCLTSServer)(
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struct _Xtransport *, /* transport */
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int, /* fd */
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char * /* port */
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);
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#endif /* TRANS_REOPEN */
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int (*SetOption)(
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XtransConnInfo, /* connection */
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int, /* option */
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int /* arg */
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);
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#ifdef TRANS_SERVER
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/* Flags */
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# define ADDR_IN_USE_ALLOWED 1
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int (*CreateListener)(
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XtransConnInfo, /* connection */
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char *, /* port */
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unsigned int /* flags */
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);
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int (*ResetListener)(
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XtransConnInfo /* connection */
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);
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XtransConnInfo (*Accept)(
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XtransConnInfo, /* connection */
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int * /* status */
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);
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#endif /* TRANS_SERVER */
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#ifdef TRANS_CLIENT
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int (*Connect)(
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XtransConnInfo, /* connection */
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char *, /* host */
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char * /* port */
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);
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#endif /* TRANS_CLIENT */
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int (*BytesReadable)(
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XtransConnInfo, /* connection */
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BytesReadable_t * /* pend */
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);
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int (*Read)(
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XtransConnInfo, /* connection */
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char *, /* buf */
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int /* size */
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);
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int (*Write)(
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XtransConnInfo, /* connection */
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char *, /* buf */
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int /* size */
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);
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int (*Readv)(
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XtransConnInfo, /* connection */
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struct iovec *, /* buf */
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int /* size */
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);
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int (*Writev)(
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XtransConnInfo, /* connection */
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struct iovec *, /* buf */
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int /* size */
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);
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#if XTRANS_SEND_FDS
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int (*SendFd)(
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XtransConnInfo, /* connection */
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int, /* fd */
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int /* do_close */
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);
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int (*RecvFd)(
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XtransConnInfo /* connection */
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);
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#endif
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int (*Disconnect)(
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XtransConnInfo /* connection */
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);
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int (*Close)(
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XtransConnInfo /* connection */
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);
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int (*CloseForCloning)(
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XtransConnInfo /* connection */
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);
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} Xtransport;
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typedef struct _Xtransport_table {
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Xtransport *transport;
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int transport_id;
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} Xtransport_table;
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/*
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* Flags for the flags member of Xtransport.
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*/
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#define TRANS_ALIAS (1<<0) /* record is an alias, don't create server */
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#define TRANS_LOCAL (1<<1) /* local transport */
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#define TRANS_DISABLED (1<<2) /* Don't open this one */
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#define TRANS_NOLISTEN (1<<3) /* Don't listen on this one */
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#define TRANS_NOUNLINK (1<<4) /* Don't unlink transport endpoints */
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#define TRANS_ABSTRACT (1<<5) /* Use abstract sockets if available */
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#define TRANS_NOXAUTH (1<<6) /* Don't verify authentication (because it's secure some other way at the OS layer) */
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#define TRANS_RECEIVED (1<<7) /* The fd for this has already been opened by someone else. */
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/* Flags to preserve when setting others */
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#define TRANS_KEEPFLAGS (TRANS_NOUNLINK|TRANS_ABSTRACT)
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#ifdef XTRANS_TRANSPORT_C /* only provide static function prototypes when
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building the transport.c file that has them in */
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#ifdef __clang__
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/* Not all clients make use of all provided statics */
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wunused-function"
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#endif
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/*
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* readv() and writev() don't exist or don't work correctly on some
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* systems, so they may be emulated.
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*/
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#if defined(SYSV) && defined(__i386__) && !defined(__SCO__) && !defined(sun) || defined(WIN32)
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#define READV(ciptr, iov, iovcnt) TRANS(ReadV)(ciptr, iov, iovcnt)
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static int TRANS(ReadV)(
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XtransConnInfo, /* ciptr */
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struct iovec *, /* iov */
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int /* iovcnt */
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);
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#else
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#define READV(ciptr, iov, iovcnt) readv(ciptr->fd, iov, iovcnt)
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#endif /* CRAY || (SYSV && __i386__) || WIN32 || __sxg__ || */
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#if defined(SYSV) && defined(__i386__) && !defined(__SCO__) && !defined(sun) || defined(WIN32)
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#define WRITEV(ciptr, iov, iovcnt) TRANS(WriteV)(ciptr, iov, iovcnt)
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static int TRANS(WriteV)(
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XtransConnInfo, /* ciptr */
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struct iovec *, /* iov */
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int /* iovcnt */
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);
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#else
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#define WRITEV(ciptr, iov, iovcnt) writev(ciptr->fd, iov, iovcnt)
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#endif /* CRAY || WIN32 || __sxg__ */
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static int is_numeric (
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const char * /* str */
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);
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#ifdef TRANS_SERVER
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static int trans_mkdir (
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const char *, /* path */
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int /* mode */
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);
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#endif
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#ifdef __clang__
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#pragma clang diagnostic pop
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#endif
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/*
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* Some XTRANSDEBUG stuff
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*/
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#ifdef XTRANSDEBUG
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#include <stdarg.h>
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/*
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* The X server provides ErrorF() & VErrorF(), for other software that uses
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* xtrans, we provide our own simple versions.
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*/
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# if defined(XSERV_t) && defined(TRANS_SERVER)
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# include "os.h"
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# else
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static inline void _X_ATTRIBUTE_PRINTF(1, 0)
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VErrorF(const char *f, va_list args)
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{
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vfprintf(stderr, f, args);
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fflush(stderr);
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}
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static inline void _X_ATTRIBUTE_PRINTF(1, 2)
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ErrorF(const char *f, ...)
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{
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va_list args;
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va_start(args, f);
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VErrorF(f, args);
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va_end(args);
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}
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# endif /* xserver */
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#endif /* XTRANSDEBUG */
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static inline void _X_ATTRIBUTE_PRINTF(2, 3)
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prmsg(int lvl, const char *f, ...)
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{
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#ifdef XTRANSDEBUG
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va_list args;
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va_start(args, f);
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if (lvl <= XTRANSDEBUG) {
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int saveerrno = errno;
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ErrorF("%s", __xtransname);
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VErrorF(f, args);
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# ifdef XTRANSDEBUGTIMESTAMP
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{
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struct timeval tp;
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gettimeofday(&tp, 0);
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ErrorF("timestamp (ms): %d\n",
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tp.tv_sec * 1000 + tp.tv_usec / 1000);
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}
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# endif
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errno = saveerrno;
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}
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va_end(args);
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#endif /* XTRANSDEBUG */
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}
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#endif /* XTRANS_TRANSPORT_C */
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#endif /* _XTRANSINT_H_ */
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