142 lines
3.6 KiB
C
142 lines
3.6 KiB
C
/* $Xorg: xfindproxy.h,v 1.4 2001/02/09 02:05:42 xorgcvs Exp $ */
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/*
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Copyright 1996, 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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*/
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/*
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* Pad to a 64 bit boundary
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*/
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#define PAD64(_bytes) ((8 - ((unsigned int) (_bytes) % 8)) % 8)
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#define PADDED_BYTES64(_bytes) (_bytes + PAD64 (_bytes))
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/*
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* Number of 8 byte units in _bytes.
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*/
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#define WORD64COUNT(_bytes) (((unsigned int) ((_bytes) + 7)) >> 3)
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/*
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* Compute the number of bytes for a STRING representation
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*/
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#define STRING_BYTES(_str) (2 + (_str ? strlen (_str) : 0) + \
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PAD64 (2 + (_str ? strlen (_str) : 0)))
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#define SKIP_STRING(_pBuf, _swap) \
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{ \
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CARD16 _len; \
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EXTRACT_CARD16 (_pBuf, _swap, _len); \
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_pBuf += _len; \
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if (PAD64 (2 + _len)) \
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_pBuf += PAD64 (2 + _len); \
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}
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/*
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* STORE macros
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*/
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#define STORE_CARD16(_pBuf, _val) \
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{ \
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*((CARD16 *) _pBuf) = _val; \
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_pBuf += 2; \
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}
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#define STORE_STRING(_pBuf, _string) \
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{ \
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int _len = _string ? strlen (_string) : 0; \
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STORE_CARD16 (_pBuf, _len); \
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if (_len) { \
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memcpy (_pBuf, _string, _len); \
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_pBuf += _len; \
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} \
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if (PAD64 (2 + _len)) \
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_pBuf += PAD64 (2 + _len); \
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}
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/*
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* EXTRACT macros
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*/
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#define EXTRACT_CARD16(_pBuf, _swap, _val) \
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{ \
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_val = *((CARD16 *) _pBuf); \
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_pBuf += 2; \
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if (_swap) \
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_val = lswaps (_val); \
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}
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#define EXTRACT_STRING(_pBuf, _swap, _string) \
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{ \
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CARD16 _len; \
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EXTRACT_CARD16 (_pBuf, _swap, _len); \
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_string = (char *) malloc (_len + 1); \
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memcpy (_string, _pBuf, _len); \
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_string[_len] = '\0'; \
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_pBuf += _len; \
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if (PAD64 (2 + _len)) \
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_pBuf += PAD64 (2 + _len); \
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}
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/*
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* Byte swapping
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*/
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/* byte swap a long literal */
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#define lswapl(_val) ((((_val) & 0xff) << 24) |\
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(((_val) & 0xff00) << 8) |\
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(((_val) & 0xff0000) >> 8) |\
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(((_val) >> 24) & 0xff))
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/* byte swap a short literal */
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#define lswaps(_val) ((((_val) & 0xff) << 8) | (((_val) >> 8) & 0xff))
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#define CHECK_AT_LEAST_SIZE(_iceConn, _majorOp, _minorOp, _expected_len, _actual_len, _severity) \
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if ((((_actual_len) - SIZEOF (iceMsg)) >> 3) > _expected_len) \
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{ \
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_IceErrorBadLength (_iceConn, _majorOp, _minorOp, _severity); \
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return; \
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}
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#define CHECK_COMPLETE_SIZE(_iceConn, _majorOp, _minorOp, _expected_len, _actual_len, _pStart, _severity) \
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if (((PADDED_BYTES64((_actual_len)) - SIZEOF (iceMsg)) >> 3) \
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!= _expected_len) \
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{ \
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_IceErrorBadLength (_iceConn, _majorOp, _minorOp, _severity); \
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IceDisposeCompleteMessage (iceConn, _pStart); \
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return; \
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}
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