IABSD.fr/xenocara/lib/libXdmcp/Write.c

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• Author : matthieu
  Date : 2024-07-09 09:59:07
  Hash : ed3c8c7e
  Message : Update libXdmcp to 1.1.5

• lib/libXdmcp/Write.c

• /*
  Copyright 1989, 1998  The Open Group
  
  Permission to use, copy, modify, distribute, and sell this software and its
  documentation for any purpose is hereby granted without fee, provided that
  the above copyright notice appear in all copies and that both that
  copyright notice and this permission notice appear in supporting
  documentation.
  
  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  
  Except as contained in this notice, the name of The Open Group shall not be
  used in advertising or otherwise to promote the sale, use or other dealings
  in this Software without prior written authorization from The Open Group.
   *
   * Author:  Keith Packard, MIT X Consortium
   */
  
  #ifdef HAVE_CONFIG_H
  #include <config.h>
  #endif
  #include <X11/Xos.h>
  #include <X11/X.h>
  #include <X11/Xmd.h>
  #include <X11/Xdmcp.h>
  #include <stdlib.h>
  
  int
  XdmcpWriteHeader (
      XdmcpBufferPtr  buffer,
      const XdmcpHeaderPtr  header)
  {
      BYTE    *newData;
  
      if ((int)buffer->size < 6 + (int)header->length)
      {
  	newData = calloc(XDM_MAX_MSGLEN, sizeof (BYTE));
  	if (!newData)
  	    return FALSE;
  	free(buffer->data);
  	buffer->data = newData;
  	buffer->size = XDM_MAX_MSGLEN;
      }
      buffer->pointer = 0;
      if (!XdmcpWriteCARD16 (buffer, header->version))
  	return FALSE;
      if (!XdmcpWriteCARD16 (buffer, header->opcode))
  	return FALSE;
      if (!XdmcpWriteCARD16 (buffer, header->length))
  	return FALSE;
      return TRUE;
  }
  
  int
  XdmcpWriteARRAY8 (XdmcpBufferPtr buffer, const ARRAY8Ptr array)
  {
      int	i;
  
      if (!XdmcpWriteCARD16 (buffer, array->length))
  	return FALSE;
      for (i = 0; i < (int)array->length; i++)
  	if (!XdmcpWriteCARD8 (buffer, array->data[i]))
  	    return FALSE;
      return TRUE;
  }
  
  int
  XdmcpWriteARRAY16 (XdmcpBufferPtr buffer, const ARRAY16Ptr array)
  {
      int	i;
  
      if (!XdmcpWriteCARD8 (buffer, array->length))
  	return FALSE;
      for (i = 0; i < (int)array->length; i++)
  	if (!XdmcpWriteCARD16 (buffer, array->data[i]))
  	    return FALSE;
      return TRUE;
  }
  
  int
  XdmcpWriteARRAY32 (XdmcpBufferPtr buffer, const ARRAY32Ptr array)
  {
      int	i;
  
      if (!XdmcpWriteCARD8 (buffer, array->length))
  	return FALSE;
      for (i = 0; i < (int)array->length; i++)
  	if (!XdmcpWriteCARD32 (buffer, array->data[i]))
  	    return FALSE;
      return TRUE;
  }
  
  int
  XdmcpWriteARRAYofARRAY8 (XdmcpBufferPtr buffer, ARRAYofARRAY8Ptr array)
  {
      int	i;
  
      if (!XdmcpWriteCARD8 (buffer, array->length))
  	return FALSE;
      for (i = 0; i < (int)array->length; i++)
  	if (!XdmcpWriteARRAY8 (buffer, &array->data[i]))
  	    return FALSE;
      return TRUE;
  }
  
  int
  XdmcpWriteCARD8 (
      XdmcpBufferPtr  buffer,
      unsigned	    value)
  {
      if (buffer->pointer >= buffer->size)
  	return FALSE;
      buffer->data[buffer->pointer++] = (BYTE) value;
      return TRUE;
  }
  
  int
  XdmcpWriteCARD16 (
      XdmcpBufferPtr  buffer,
      unsigned	    value)
  {
      if (!XdmcpWriteCARD8 (buffer, value >> 8))
  	return FALSE;
      if (!XdmcpWriteCARD8 (buffer, value & 0xff))
  	return FALSE;
      return TRUE;
  }
  
  int
  XdmcpWriteCARD32 (
      XdmcpBufferPtr  buffer,
      unsigned	    value)
  {
      if (!XdmcpWriteCARD8 (buffer, value >> 24))
  	return FALSE;
      if (!XdmcpWriteCARD8 (buffer, (value >> 16) & 0xff))
  	return FALSE;
      if (!XdmcpWriteCARD8 (buffer, (value >> 8) & 0xff))
  	return FALSE;
      if (!XdmcpWriteCARD8 (buffer, value & 0xff))
  	return FALSE;
      return TRUE;
  }