IABSD.fr/xenocara/lib/libX11/src/Host.c

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• Author : matthieu
  Date : 2020-11-28 14:39:45
  Hash : 476ad6ae
  Message : Update to libX11 1.7.0. Tested by gkoehler@ and jsg@

• lib/libX11/src/Host.c

• /*
  
  Copyright 1986, 1998  The Open Group
  
  All rights reserved.
  
  Permission is hereby granted, free of charge, to any person obtaining a
  copy of this software and associated documentation files (the
  "Software"), to deal in the Software without restriction, including
  without limitation the rights to use, copy, modify, merge, publish,
  distribute, and/or sell copies of the Software, and to permit persons
  to whom the Software is furnished to do so, provided that the above
  copyright notice(s) and this permission notice appear in all copies of
  the Software and that both the above copyright notice(s) and this
  permission notice appear in supporting documentation.
  
  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
  OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
  HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR 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.
  
  Except as contained in this notice, the name of a copyright holder
  shall not be used in advertising or otherwise to promote the sale, use
  or other dealings in this Software without prior written authorization
  of the copyright holder.
  
  X Window System is a trademark of The Open Group.
  
  */
  
  /*
   * Copyright 2004 Oracle and/or its affiliates. All rights reserved.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
   */
  
  
  /* this might be rightly regarded an os dependent file */
  
  #ifdef HAVE_CONFIG_H
  #include <config.h>
  #endif
  #include "Xlibint.h"
  
  static inline int
  changehost (Display *dpy, XHostAddress *host, BYTE mode)
  {
      xChangeHostsReq *req;
      int length;
      XServerInterpretedAddress *siAddr;
      int addrlen;
  
      siAddr = host->family == FamilyServerInterpreted ?
  	(XServerInterpretedAddress *)host->address : NULL;
      addrlen = siAddr ?
  	siAddr->typelength + siAddr->valuelength + 1 : host->length;
  
      length = (addrlen + 3) & ~0x3;	/* round up */
  
      LockDisplay(dpy);
      GetReqExtra (ChangeHosts, length, req);
      if (!req) {
  	UnlockDisplay(dpy);
  	return 0;
      }
      req->mode = mode;
      req->hostFamily = host->family;
      req->hostLength = addrlen;
      if (siAddr) {
  	char *dest = (char *) NEXTPTR(req,xChangeHostsReq);
  	memcpy(dest, siAddr->type, (size_t) siAddr->typelength);
  	dest[siAddr->typelength] = '\0';
  	memcpy(dest + siAddr->typelength + 1,siAddr->value,(size_t) siAddr->valuelength);
      } else {
  	memcpy((char *) NEXTPTR(req,xChangeHostsReq), host->address, (size_t) addrlen);
      }
      UnlockDisplay(dpy);
      SyncHandle();
      return 1;
  }
  
  int
  XAddHost (
      register Display *dpy,
      XHostAddress *host)
  {
      return changehost(dpy, host, HostInsert);
  }
  
  int
  XRemoveHost (
      register Display *dpy,
      XHostAddress *host)
  {
      return changehost(dpy, host, HostDelete);
  }
  
  int
  XAddHosts (
      register Display *dpy,
      XHostAddress *hosts,
      int n)
  {
      register int i;
      for (i = 0; i < n; i++) {
  	(void) XAddHost(dpy, &hosts[i]);
        }
      return 1;
  }
  
  int
  XRemoveHosts (
      register Display *dpy,
      XHostAddress *hosts,
      int n)
  {
      register int i;
      for (i = 0; i < n; i++) {
  	(void) XRemoveHost(dpy, &hosts[i]);
        }
      return 1;
  }