text: /************************************************************
  Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc.
  
  Permission to use, copy, modify, and distribute this
  software and its documentation for any purpose and without
  fee is hereby granted, provided that the above copyright
  notice appear in all copies and that both that copyright
  notice and this permission notice appear in supporting
  documentation, and that the name of Silicon Graphics not be 
  used in advertising or publicity pertaining to distribution 
  of the software without specific prior written permission.
  Silicon Graphics makes no representation about the suitability 
  of this software for any purpose. It is provided "as is"
  without any express or implied warranty.
  
  SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS 
  SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 
  AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
  GRAPHICS BE LIABLE FOR 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.
  
  ********************************************************/
  
  #ifdef HAVE_DIX_CONFIG_H
  #include <dix-config.h>
  #endif
  
  #ifdef HAVE_XKB_CONFIG_H
  #include <xkb-config.h>
  #endif
  
  #include <stdio.h>
  #include <ctype.h>
  #define	NEED_EVENTS 1
  #include <X11/X.h>
  #include <X11/Xos.h>
  #include <X11/Xproto.h>
  #include <X11/keysym.h>
  #include <X11/extensions/XKM.h>
  #include "inputstr.h"
  #include "scrnintstr.h"
  #include "windowstr.h"
  #define	XKBSRV_NEED_FILE_FUNCS
  #include <xkbsrv.h>
  #include <X11/extensions/XI.h>
  #include "xkb.h"
  
  #if defined(CSRG_BASED) || defined(linux) || defined(__sgi) || defined(AIXV3) || defined(__osf__) || defined(__GNU__)
  #include <paths.h>
  #endif
  
  	/*
  	 * If XKM_OUTPUT_DIR specifies a path without a leading slash, it is
  	 * relative to the top-level XKB configuration directory.
  	 * Making the server write to a subdirectory of that directory
  	 * requires some work in the general case (install procedure
  	 * has to create links to /var or somesuch on many machines),
  	 * so we just compile into /usr/tmp for now.
  	 */
  #ifndef XKM_OUTPUT_DIR
  #define	XKM_OUTPUT_DIR	"compiled/"
  #endif
  
  #define	PRE_ERROR_MSG "\"The XKEYBOARD keymap compiler (xkbcomp) reports:\""
  #define	ERROR_PREFIX	"\"> \""
  #define	POST_ERROR_MSG1 "\"Errors from xkbcomp are not fatal to the X server\""
  #define	POST_ERROR_MSG2 "\"End of messages from xkbcomp\""
  
  #if defined(WIN32)
  #define PATHSEPARATOR "\\"
  #else
  #define PATHSEPARATOR "/"
  #endif
  
  #ifdef WIN32
  
  #include <X11/Xwindows.h>
  const char* 
  Win32TempDir()
  {
      static char buffer[PATH_MAX];
      if (GetTempPath(sizeof(buffer), buffer))
      {
          int len;
          buffer[sizeof(buffer)-1] = 0;
          len = strlen(buffer);
          if (len > 0)
              if (buffer[len-1] == '\\')
                  buffer[len-1] = 0;
          return buffer;
      }
      if (getenv("TEMP") != NULL)
          return getenv("TEMP");
      else if (getenv("TMP") != NULL)
          return getenv("TEMP");
      else
          return "/tmp";
  }
  
  int 
  Win32System(const char *cmdline)
  {
      STARTUPINFO si;
      PROCESS_INFORMATION pi;
      DWORD dwExitCode;
      char *cmd = xstrdup(cmdline);
  
      ZeroMemory( &si, sizeof(si) );
      si.cb = sizeof(si);
      ZeroMemory( &pi, sizeof(pi) );
  
      if (!CreateProcess(NULL, cmd, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi)) 
      {
  	LPVOID buffer;
  	if (!FormatMessage( 
  		    FORMAT_MESSAGE_ALLOCATE_BUFFER | 
  		    FORMAT_MESSAGE_FROM_SYSTEM | 
  		    FORMAT_MESSAGE_IGNORE_INSERTS,
  		    NULL,
  		    GetLastError(),
  		    MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
  		    (LPTSTR) &buffer,
  		    0,
  		    NULL ))
  	{
  	    ErrorF("Starting '%s' failed!\n", cmdline); 
  	}
  	else
  	{
  	    ErrorF("Starting '%s' failed: %s", cmdline, (char *)buffer); 
  	    LocalFree(buffer);
  	}
  
  	xfree(cmd);
  	return -1;
      }
      /* Wait until child process exits. */
      WaitForSingleObject( pi.hProcess, INFINITE );
  
      GetExitCodeProcess( pi.hProcess, &dwExitCode);
      
      /* Close process and thread handles. */
      CloseHandle( pi.hProcess );
      CloseHandle( pi.hThread );
      xfree(cmd);
  
      return dwExitCode;
  }
  #undef System
  #define System(x) Win32System(x)
  #endif
  
  static void
  OutputDirectory(
      char* outdir,
      size_t size)
  {
  #ifndef WIN32
      if (getuid() == 0 && (strlen(XKM_OUTPUT_DIR) < size))
      {
  	/* if server running as root it *may* be able to write */
  	/* FIXME: check whether directory is writable at all */
  	(void) strcpy (outdir, XKM_OUTPUT_DIR);
      } else
  #else
      if (strlen(Win32TempDir()) + 1 < size)
      {
  	(void) strcpy(outdir, Win32TempDir());
  	(void) strcat(outdir, "\\");
      } else 
  #endif
      if (strlen("/tmp/") < size)
      {
  	(void) strcpy (outdir, "/tmp/");
      }
  }
  
  static Bool    	
  XkbDDXCompileKeymapByNames(	XkbDescPtr		xkb,
  				XkbComponentNamesPtr	names,
  				unsigned		want,
  				unsigned		need,
  				char *			nameRtrn,
  				int			nameRtrnLen)
  {
  FILE *	out;
  char	*buf = NULL, keymap[PATH_MAX],xkm_output_dir[PATH_MAX];
  
  #ifdef WIN32
  char tmpname[PATH_MAX];
  #endif    
      if ((names->keymap==NULL)||(names->keymap[0]=='\0')) {
  	sprintf(keymap,"server-%s",display);
      }
      else {
  	if (strlen(names->keymap) > PATH_MAX - 1) {
  	    ErrorF("name of keymap (%s) exceeds max length\n", names->keymap);
  	    return False;
  	}
  	strcpy(keymap,names->keymap);
      }
  
      XkbEnsureSafeMapName(keymap);
      OutputDirectory(xkm_output_dir, sizeof(xkm_output_dir));
  #ifdef WIN32
      strcpy(tmpname, Win32TempDir());
      strcat(tmpname, "\\xkb_XXXXXX");
      (void) mktemp(tmpname);
  #endif
      if (XkbBaseDirectory!=NULL) {
  #ifndef WIN32
          char *xkmfile = "-";
  #else
          /* WIN32 has no popen. The input must be stored in a file which is used as input
             for xkbcomp. xkbcomp does not read from stdin. */
          char *xkmfile = tmpname;
  #endif
          char *xkbbasedir = XkbBaseDirectory;
          char *xkbbindir = XkbBinDirectory;
          
  	buf = Xprintf(
  	   "\"%s" PATHSEPARATOR "xkbcomp\" -w %d \"-R%s\" -xkm \"%s\" -em1 %s -emp %s -eml %s \"%s%s.xkm\"",
  		xkbbindir,
  		((xkbDebugFlags<2)?1:((xkbDebugFlags>10)?10:(int)xkbDebugFlags)),
  		xkbbasedir, xkmfile,
  		PRE_ERROR_MSG,ERROR_PREFIX,POST_ERROR_MSG1,
  		xkm_output_dir,keymap);
      }
      else {
  #ifndef WIN32
          char *xkmfile = "-";
  #else
          char *xkmfile = tmpname;
  #endif
  	buf = Xprintf(
  		"xkbcomp -w %d -xkm \"%s\" -em1 %s -emp %s -eml %s \"%s%s.xkm\"",
  		((xkbDebugFlags<2)?1:((xkbDebugFlags>10)?10:(int)xkbDebugFlags)),
                  xkmfile,
  		PRE_ERROR_MSG,ERROR_PREFIX,POST_ERROR_MSG1,
  		xkm_output_dir,keymap);
      }
      
  #ifndef WIN32
      out= Popen(buf,"w");
  #else
      out= fopen(tmpname, "w");
  #endif
      
      if (out!=NULL) {
  #ifdef DEBUG
      if (xkbDebugFlags) {
         ErrorF("XkbDDXCompileKeymapByNames compiling keymap:\n");
         XkbWriteXKBKeymapForNames(stderr,names,xkb,want,need);
      }
  #endif
  	XkbWriteXKBKeymapForNames(out,names,xkb,want,need);
  #ifndef WIN32
  	if (Pclose(out)==0)
  #else
  	if (fclose(out)==0 && System(buf) >= 0)
  #endif
  	{
              if (xkbDebugFlags)
                  DebugF("xkb executes: %s\n",buf);
  	    if (nameRtrn) {
  		strncpy(nameRtrn,keymap,nameRtrnLen);
  		nameRtrn[nameRtrnLen-1]= '\0';
  	    }
              if (buf != NULL)
                  xfree (buf);
  	    return True;
  	}
  	else
  	    LogMessage(X_ERROR, "Error compiling keymap (%s)\n", keymap);
  #ifdef WIN32
          /* remove the temporary file */
          unlink(tmpname);
  #endif
      }
      else {
  #ifndef WIN32
  	LogMessage(X_ERROR, "XKB: Could not invoke xkbcomp\n");
  #else
  	LogMessage(X_ERROR, "Could not open file %s\n", tmpname);
  #endif
      }
      if (nameRtrn)
  	nameRtrn[0]= '\0';
      if (buf != NULL)
          xfree (buf);
      return False;
  }
  
  static FILE *
  XkbDDXOpenConfigFile(char *mapName,char *fileNameRtrn,int fileNameRtrnLen)
  {
  char	buf[PATH_MAX],xkm_output_dir[PATH_MAX];
  FILE *	file;
  
      buf[0]= '\0';
      if (mapName!=NULL) {
  	OutputDirectory(xkm_output_dir, sizeof(xkm_output_dir));
  	if ((XkbBaseDirectory!=NULL)&&(xkm_output_dir[0]!='/')
  #ifdef WIN32
                  &&(!isalpha(xkm_output_dir[0]) || xkm_output_dir[1]!=':')
  #endif
                  ) {
  	    if (strlen(XkbBaseDirectory)+strlen(xkm_output_dir)
  		     +strlen(mapName)+6 <= PATH_MAX)
  	    {
  	        sprintf(buf,"%s/%s%s.xkm",XkbBaseDirectory,
  					xkm_output_dir,mapName);
  	    }
  	}
  	else if (strlen(xkm_output_dir)+strlen(mapName)+5 <= PATH_MAX)
  	    sprintf(buf,"%s%s.xkm",xkm_output_dir,mapName);
  	if (buf[0] != '\0')
  	    file= fopen(buf,"rb");
  	else file= NULL;
      }
      else file= NULL;
      if ((fileNameRtrn!=NULL)&&(fileNameRtrnLen>0)) {
  	strncpy(fileNameRtrn,buf,fileNameRtrnLen);
  	buf[fileNameRtrnLen-1]= '\0';
      }
      return file;
  }
  
  unsigned
  XkbDDXLoadKeymapByNames(	DeviceIntPtr		keybd,
  				XkbComponentNamesPtr	names,
  				unsigned		want,
  				unsigned		need,
  				XkbDescPtr *		xkbRtrn,
  				char *			nameRtrn,
  				int 			nameRtrnLen)
  {
  XkbDescPtr      xkb;
  FILE	*	file;
  char		fileName[PATH_MAX];
  unsigned	missing;
  
      *xkbRtrn = NULL;
      if ((keybd==NULL)||(keybd->key==NULL)||(keybd->key->xkbInfo==NULL))
  	 xkb= NULL;
      else xkb= keybd->key->xkbInfo->desc;
      if ((names->keycodes==NULL)&&(names->types==NULL)&&
  	(names->compat==NULL)&&(names->symbols==NULL)&&
  	(names->geometry==NULL)) {
          LogMessage(X_ERROR, "XKB: No components provided for device %s\n",
                     keybd->name ? keybd->name : "(unnamed keyboard)");
          return 0;
      }
      else if (!XkbDDXCompileKeymapByNames(xkb,names,want,need,
                                           nameRtrn,nameRtrnLen)){
  	LogMessage(X_ERROR, "XKB: Couldn't compile keymap\n");
  	return 0;
      }
      file= XkbDDXOpenConfigFile(nameRtrn,fileName,PATH_MAX);
      if (file==NULL) {
  	LogMessage(X_ERROR, "Couldn't open compiled keymap file %s\n",fileName);
  	return 0;
      }
      missing= XkmReadFile(file,need,want,xkbRtrn);
      if (*xkbRtrn==NULL) {
  	LogMessage(X_ERROR, "Error loading keymap %s\n",fileName);
  	fclose(file);
  	(void) unlink (fileName);
  	return 0;
      }
      else {
  	DebugF("Loaded XKB keymap %s, defined=0x%x\n",fileName,(*xkbRtrn)->defined);
      }
      fclose(file);
      (void) unlink (fileName);
      return (need|want)&(~missing);
  }
  
  Bool
  XkbDDXNamesFromRules(	DeviceIntPtr		keybd,
  			char *			rules_name,
  			XkbRF_VarDefsPtr	defs,
  			XkbComponentNamesPtr	names)
  {
  char 		buf[PATH_MAX];
  FILE *		file;
  Bool		complete;
  XkbRF_RulesPtr	rules;
  
      if (!rules_name)
  	return False;
  
      if (strlen(XkbBaseDirectory) + strlen(rules_name) + 8 > PATH_MAX) {
          LogMessage(X_ERROR, "XKB: Rules name is too long\n");
          return False;
      }
      sprintf(buf,"%s/rules/%s", XkbBaseDirectory, rules_name);
  
      file = fopen(buf, "r");
      if (!file) {
          LogMessage(X_ERROR, "XKB: Couldn't open rules file %s\n", buf);
  	return False;
      }
  
      rules = XkbRF_Create(0, 0);
      if (!rules) {
          LogMessage(X_ERROR, "XKB: Couldn't create rules struct\n");
  	fclose(file);
  	return False;
      }
  
      if (!XkbRF_LoadRules(file, rules)) {
          LogMessage(X_ERROR, "XKB: Couldn't parse rules file %s\n", rules_name);
  	fclose(file);
  	XkbRF_Free(rules,True);
  	return False;
      }
  
      memset(names, 0, sizeof(*names));
      complete = XkbRF_GetComponents(rules,defs,names);
      fclose(file);
      XkbRF_Free(rules, True);
  
      if (!complete)
          LogMessage(X_ERROR, "XKB: Rules returned no components\n");
  
      return complete;
  }
  