sync code with last improvements from OpenBSD
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26235 changed files with 29195616 additions and 0 deletions
306
lib/libICE/include/X11/ICE/ICEmsg.h
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306
lib/libICE/include/X11/ICE/ICEmsg.h
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/******************************************************************************
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Copyright 1993, 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 in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Author: Ralph Mor, X Consortium
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******************************************************************************/
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#ifndef _ICEMSG_H_
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#define _ICEMSG_H_
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#include <X11/Xfuncproto.h>
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#include <X11/ICE/ICEconn.h>
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#include <assert.h>
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#if !defined(__cplusplus) && !defined(static_assert)
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#define static_assert(cond, msg) /* skip for non-C11 compilers */
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#endif
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_XFUNCPROTOBEGIN
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/*
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* Function prototypes for internal ICElib functions
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*/
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extern Status _IceRead (
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IceConn /* iceConn */,
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unsigned long /* nbytes */,
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char * /* ptr */
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);
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extern void _IceReadSkip (
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IceConn /* iceConn */,
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unsigned long /* nbytes */
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);
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extern void _IceWrite (
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IceConn /* iceConn */,
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unsigned long /* nbytes */,
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char * /* ptr */
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);
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extern void _IceErrorBadMinor (
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IceConn /* iceConn */,
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int /* majorOpcode */,
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int /* offendingMinor */,
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int /* severity */
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);
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extern void _IceErrorBadState (
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IceConn /* iceConn */,
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int /* majorOpcode */,
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int /* offendingMinor */,
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int /* severity */
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);
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extern void _IceErrorBadLength (
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IceConn /* iceConn */,
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int /* majorOpcode */,
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int /* offendingMinor */,
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int /* severity */
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);
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extern void _IceErrorBadValue (
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IceConn /* iceConn */,
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int /* majorOpcode */,
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int /* offendingMinor */,
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int /* offset */,
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int /* length */,
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IcePointer /* value */
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);
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extern IcePoAuthStatus _IcePoMagicCookie1Proc (
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IceConn /* iceConn */,
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IcePointer * /* authStatePtr */,
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Bool /* cleanUp */,
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Bool /* swap */,
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int /* authDataLen */,
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IcePointer /* authData */,
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int * /* replyDataLenRet */,
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IcePointer * /* replyDataRet */,
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char ** /* errorStringRet */
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);
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extern IcePaAuthStatus _IcePaMagicCookie1Proc (
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IceConn /* iceConn */,
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IcePointer * /* authStatePtr */,
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Bool /* swap */,
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int /* authDataLen */,
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IcePointer /* authData */,
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int * /* replyDataLenRet */,
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IcePointer * /* replyDataRet */,
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char ** /* errorStringRet */
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);
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/*
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* Macro to check if IO operations are valid on an ICE connection.
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*/
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#define IceValidIO(_iceConn) _iceConn->io_ok
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/*
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* Macros for writing messages.
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*/
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#define IceGetHeader(_iceConn, _major, _minor, _headerSize, _msgType, _pMsg) \
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do { \
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static_assert(_headerSize <= 1024, \
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"Header size larger than ICE_OUTBUFSIZE"); \
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if ((_iceConn->outbufptr + _headerSize) > _iceConn->outbufmax) \
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IceFlush (_iceConn); \
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_pMsg = (_msgType *) _iceConn->outbufptr; \
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_pMsg->majorOpcode = _major; \
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_pMsg->minorOpcode = _minor; \
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_pMsg->length = (_headerSize - SIZEOF (iceMsg)) >> 3; \
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_iceConn->outbufptr += _headerSize; \
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_iceConn->send_sequence++; \
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} while (0)
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#define IceGetHeaderExtra(_iceConn, _major, _minor, _headerSize, _extra, _msgType, _pMsg, _pData) \
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do { \
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static_assert(_headerSize <= 1024, \
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"Header size larger than ICE_OUTBUFSIZE"); \
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if ((_iceConn->outbufptr + \
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_headerSize + ((_extra) << 3)) > _iceConn->outbufmax) \
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IceFlush (_iceConn); \
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_pMsg = (_msgType *) _iceConn->outbufptr; \
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_iceConn->outbufptr += _headerSize; \
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if ((_iceConn->outbufptr + ((_extra) << 3)) <= _iceConn->outbufmax) { \
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_pData = _iceConn->outbufptr; \
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_iceConn->outbufptr += ((_extra) << 3); \
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} \
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else \
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_pData = NULL; \
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_pMsg->majorOpcode = _major; \
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_pMsg->minorOpcode = _minor; \
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_pMsg->length = ((_headerSize - SIZEOF (iceMsg)) >> 3) + (_extra); \
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_iceConn->send_sequence++; \
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} while (0)
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#define IceSimpleMessage(_iceConn, _major, _minor) \
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{ \
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iceMsg *_pMsg; \
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IceGetHeader (_iceConn, _major, _minor, SIZEOF (iceMsg), iceMsg, _pMsg); \
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}
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#define IceErrorHeader(_iceConn, _offendingMajorOpcode, _offendingMinorOpcode, _offendingSequenceNum, _severity, _errorClass, _dataLength) \
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{ \
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iceErrorMsg *_pMsg; \
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\
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IceGetHeader (_iceConn, _offendingMajorOpcode, ICE_Error, \
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SIZEOF (iceErrorMsg), iceErrorMsg, _pMsg); \
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_pMsg->length += (_dataLength); \
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_pMsg->offendingMinorOpcode = (CARD8) _offendingMinorOpcode; \
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_pMsg->severity = (CARD8) _severity; \
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_pMsg->offendingSequenceNum = (CARD32) _offendingSequenceNum; \
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_pMsg->errorClass = (CARD16) _errorClass; \
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}
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/*
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* Write data into the ICE output buffer.
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*/
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#define IceWriteData(_iceConn, _bytes, _data) \
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{ \
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if ((_iceConn->outbufptr + (_bytes)) > _iceConn->outbufmax) \
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{ \
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IceFlush (_iceConn); \
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_IceWrite (_iceConn, (unsigned long) (_bytes), _data); \
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} \
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else \
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{ \
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memcpy (_iceConn->outbufptr, _data, _bytes); \
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_iceConn->outbufptr += (_bytes); \
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} \
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}
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#define IceWriteData16(_iceConn, _bytes, _data) \
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IceWriteData (_iceConn, _bytes, (char *) _data)
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#define IceWriteData32(_iceConn, _bytes, _data) \
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IceWriteData (_iceConn, _bytes, (char *) _data)
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/*
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* The IceSendData macro bypasses copying the data to the
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* ICE connection buffer and sends the data directly. If necessary,
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* the ICE connection buffer is first flushed.
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*/
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#define IceSendData(_iceConn, _bytes, _data) \
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{ \
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if (_iceConn->outbufptr > _iceConn->outbuf) \
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IceFlush (_iceConn); \
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_IceWrite (_iceConn, (unsigned long) (_bytes), _data); \
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}
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/*
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* Write pad bytes. Used to force 32 or 64 bit alignment.
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* A maximum of 7 pad bytes can be specified.
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*/
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#define IceWritePad(_iceConn, _bytes) \
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{ \
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char _dummy[7] = { 0 }; \
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IceWriteData (_iceConn, (_bytes), _dummy); \
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}
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/*
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* Macros for reading messages.
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*/
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#define IceReadCompleteMessage(_iceConn, _headerSize, _msgType, _pMsg, _pData)\
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{ \
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unsigned long _bytes; \
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IceReadMessageHeader (_iceConn, _headerSize, _msgType, _pMsg); \
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_bytes = (_pMsg->length << 3) - (_headerSize - SIZEOF (iceMsg)); \
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if ((_iceConn->inbufmax - _iceConn->inbufptr) >= _bytes) \
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{ \
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_IceRead (_iceConn, _bytes, _iceConn->inbufptr); \
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_pData = _iceConn->inbufptr; \
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_iceConn->inbufptr += _bytes; \
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} \
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else \
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{ \
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_pData = malloc (_bytes); \
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if (_pData) \
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_IceRead (_iceConn, _bytes, _pData); \
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else \
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_IceReadSkip (_iceConn, _bytes); \
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} \
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}
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#define IceDisposeCompleteMessage(_iceConn, _pData) \
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if ((char *) _pData < _iceConn->inbuf || \
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(char *) _pData >= _iceConn->inbufmax) \
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free (_pData);
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#define IceReadSimpleMessage(_iceConn, _msgType, _pMsg) \
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_pMsg = (_msgType *) (_iceConn->inbuf);
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#define IceReadMessageHeader(_iceConn, _headerSize, _msgType, _pMsg) \
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{ \
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_IceRead (_iceConn, \
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(unsigned long) (_headerSize - SIZEOF (iceMsg)), \
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_iceConn->inbufptr); \
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_pMsg = (_msgType *) (_iceConn->inbuf); \
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_iceConn->inbufptr += (_headerSize - SIZEOF (iceMsg)); \
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}
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#define IceReadData(_iceConn, _bytes, _pData) \
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_IceRead (_iceConn, (unsigned long) (_bytes), (char *) _pData); \
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#define IceReadData16(_iceConn, _swap, _bytes, _pData) \
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{ \
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_IceRead (_iceConn, (unsigned long) (_bytes), (char *) _pData); \
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}
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#define IceReadData32(_iceConn, _swap, _bytes, _pData) \
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{ \
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_IceRead (_iceConn, (unsigned long) (_bytes), (char *) _pData); \
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}
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/*
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* Read pad bytes (for 32 or 64 bit alignment).
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* A maximum of 7 pad bytes can be specified.
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*/
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#define IceReadPad(_iceConn, _bytes) \
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{ \
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char _dummy[7]; \
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_IceRead (_iceConn, (unsigned long) (_bytes), _dummy); \
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}
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_XFUNCPROTOEND
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#endif /* _ICEMSG_H_ */
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