AOO410/main/odk/source/unoapploader/win/unoapploader.c - openoffice - Git at Google

 /**************************************************************
  *
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  *
  *************************************************************/


 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 #include <process.h>

 #if defined _MSC_VER
 #pragma warning(push, 1)
 #endif
 #include <windows.h>
 #if defined _MSC_VER
 #pragma warning(pop)
 #endif

 #include "cppuhelper/findsofficepath.h"
 #include "sal/types.h"

 #define MY_LENGTH(s) (sizeof (s) / sizeof *(s) - 1)

 char const* getPath();
 char* createCommandLine( char* lpCmdLine );
 FILE* getErrorFile( int create );
 void writeError( const char* errstr );
 void closeErrorFile();

 /*
  * The main function implements a loader for applications which use UNO.
  *
  * <p>This code runs on the Windows platform only.</p>
  *
  * <p>The main function detects a UNO installation on the system and adds the
  * program directory of the UNO installation to the PATH environment variable.
  * After that, the application process is loaded and started, whereby the
  * new process inherits the environment of the calling process, including
  * the modified PATH environment variable. The application's executable name
  * must be the same as the name of this executable, prefixed by '_'.</p>
  *
  * <p>A UNO installation can be specified by the user by setting the UNO_PATH
  * environment variable to the program directory of the UNO installation.
  * If no installation is specified by the user, the default installation on
  * the system will be taken. The default installation is read from the
  * default value of the key "Software\OpenOffice\UNO\InstallPath" from the
  * root key HKEY_CURRENT_USER in the Windows Registry. If this key is missing,
  * the key is read from the root key HKEY_LOCAL_MACHINE.</p>
  */
 int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
                     LPSTR lpCmdLine, int nCmdShow )
 {
     const char* ENVVARNAME = "PATH";
     const char* PATHSEPARATOR = ";";

     char const* path = NULL;
     char* value = NULL;
     char* envstr = NULL;
     char* cmdline = NULL;
     int size;
     STARTUPINFO startup_info;
     PROCESS_INFORMATION process_info;
     BOOL bCreate;

     (void) hInstance; /* unused */
     (void) hPrevInstance; /* unused */
     (void) nCmdShow; /* unused */

     /* get the path of the UNO installation */
     path = getPath();

     if ( path != NULL )
     {
         /* The former code to call unoinfo first is removed because we can use the office path
            from the registry or from the UNO_PATH variable directly.
            Further cleanup can remove unoinfo from the installation when all places where it is
            used are checked.
           */

         /* get the value of the PATH environment variable */
         value = getenv( ENVVARNAME );

         /*
          * add the UNO installation path to the PATH environment variable;
          * note that this only affects the environment variable of the current
          * process, the command processor's environment is not changed
          */
         size = strlen( ENVVARNAME ) + strlen( "=" ) + strlen( path ) + 1;
 		if ( value != NULL )
             size += strlen( PATHSEPARATOR ) + strlen( value );
 		envstr = (char*) malloc( size );
         strcpy( envstr, ENVVARNAME );
         strcat( envstr, "=" );
         strcat( envstr, path );
 		if ( value != NULL )
 		{
             strcat( envstr, PATHSEPARATOR );
             strcat( envstr, value );
 		}
         _putenv( envstr );
         free( envstr );
     }
     else
     {
         writeError( "Warning: no UNO installation found!\n" );
     }

     /* create the command line for the application process */
     cmdline = createCommandLine( lpCmdLine );
     if ( cmdline == NULL )
     {
         writeError( "Error: cannot create command line!\n" );
         closeErrorFile();
         return 1;
     }

     /* create the application process */
 	memset( &startup_info, 0, sizeof( STARTUPINFO ) );
 	startup_info.cb = sizeof( STARTUPINFO );
     bCreate = CreateProcess( NULL, cmdline, NULL,  NULL, FALSE, 0, NULL, NULL,
                              &startup_info, &process_info );
     free( cmdline );
     if ( !bCreate )
     {
         writeError( "Error: cannot create process!\n" );
         closeErrorFile();
         return 1;
     }

     /* close the error file */
     closeErrorFile();

     return 0;
 }

 /*
  * Gets the path of a UNO installation.
  *
  * @return the installation path or NULL, if no installation was specified or
  *         found, or if an error occured
  */
 char const* getPath()
 {
     char const* path = cppuhelper_detail_findSofficePath();

     if ( path == NULL )
         writeError( "Warning: getting path from Windows Registry failed!\n" );

     return path;
 }

 /*
  * Creates the command line for the application process including the absolute
  * path of the executable.
  *
  * <p>The application's executable file name is the name of this executable
  * prefixed by '_'.</p>
  *
  * @param appendix specifies the command line for the application excluding
  *                 the executable name
  *
  * @return the command line for the application process or NULL, if an error
  *         occured
  */
 char* createCommandLine( char* appendix )
 {
     const char* CMDPREFIX = "_";
     const char* DQUOTE = "\"";
     const char* SPACE = " ";

     char* cmdline = NULL;

     char cmdname[ _MAX_PATH ];
     char drive[ _MAX_DRIVE ];
     char dir[ _MAX_PATH ];
     char base[ _MAX_FNAME ];
     char newbase[ _MAX_FNAME ];
     char ext[ _MAX_EXT ];

     /* get the absolute path of the executable file */
     if ( GetModuleFileName( NULL, cmdname, sizeof( cmdname ) ) )
     {
         /* prefix the executable file name by '_' */
         _splitpath( cmdname, drive, dir, base, ext );
         strcpy( newbase, CMDPREFIX );
         strcat( newbase, base );
         _makepath( cmdname, drive, dir, newbase, ext );

         /* create the command line */
         cmdline = (char*) malloc( strlen( DQUOTE ) + strlen( cmdname ) +
             strlen ( DQUOTE ) + strlen( SPACE ) + strlen( appendix ) + 1 );
         strcpy( cmdline, DQUOTE );
         strcat( cmdline, cmdname );
         strcat( cmdline, DQUOTE );
         strcat( cmdline, SPACE );
         strcat( cmdline, appendix );
     }

     return cmdline;
 }

 /*
  * Gets the pointer to the error file.
  *
  * <p>The error file will only be created, if create != 0.</p>
  *
  * <p>The error file has the name <executable file name>-error.log and is
  * created in the same directory as the executable file. If this fails,
  * the error file is created in the directory designated for temporary files.
  * </p>

  * @param create specifies, if the error file should be created (create != 0)
  *
  * @return the pointer to the open error file or NULL, if no error file is
  *         open or can be created
  */
 FILE* getErrorFile( int create )
 {
     const char* MODE = "w";
     const char* BASEPOSTFIX = "-error";
     const char* EXTENSION = ".log";

     static FILE* ferr = NULL;

     char fname[ _MAX_PATH ];
     char drive[ _MAX_DRIVE ];
     char dir[ _MAX_PATH ];
     char base[ _MAX_FNAME ];
     char newbase[ _MAX_FNAME ];
     char ext[ _MAX_EXT ];

     if ( ferr == NULL && create )
     {
         /* get the absolute path of the executable file */
         if ( GetModuleFileName( NULL, fname, sizeof( fname ) ) )
         {
             /* create error file in the directory of the executable file */
             _splitpath( fname, drive, dir, base, ext );
             strcpy( newbase, base );
             strcat( newbase, BASEPOSTFIX );
             _makepath( fname, drive, dir, newbase, EXTENSION );
             ferr = fopen( fname, MODE );

             if ( ferr == NULL )
             {
                 /* create error file in the temp directory */
                 GetTempPath( sizeof( fname ), fname );
                 strcat( fname, newbase );
                 strcat( fname, EXTENSION );
                 ferr = fopen( fname, MODE );
             }
         }
     }

     return ferr;
 }

 /*
  * Writes an error message to the error file.
  *
  * @param errstr specifies the error message
  */
 void writeError( const char* errstr )
 {
     FILE* ferr = getErrorFile( 1 );
     if ( ferr != NULL )
     {
         fprintf( ferr, errstr );
         fflush( ferr );
     }
 }

 /*
  * Closes the error file.
  */
 void closeErrorFile()
 {
     FILE* ferr = getErrorFile( 0 );
     if ( ferr != NULL )
         fclose( ferr );
 }
	/**************************************************************
	*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*
	*************************************************************/



	#include <stdlib.h>
	#include <stdio.h>
	#include <string.h>
	#include <process.h>

	#if defined _MSC_VER
	#pragma warning(push, 1)
	#endif
	#include <windows.h>
	#if defined _MSC_VER
	#pragma warning(pop)
	#endif

	#include "cppuhelper/findsofficepath.h"
	#include "sal/types.h"

	#define MY_LENGTH(s) (sizeof (s) / sizeof *(s) - 1)

	char const* getPath();
	char* createCommandLine( char* lpCmdLine );
	FILE* getErrorFile( int create );
	void writeError( const char* errstr );
	void closeErrorFile();

	/*
	* The main function implements a loader for applications which use UNO.
	*
	* <p>This code runs on the Windows platform only.</p>
	*
	* <p>The main function detects a UNO installation on the system and adds the
	* program directory of the UNO installation to the PATH environment variable.
	* After that, the application process is loaded and started, whereby the
	* new process inherits the environment of the calling process, including
	* the modified PATH environment variable. The application's executable name
	* must be the same as the name of this executable, prefixed by '_'.</p>
	*
	* <p>A UNO installation can be specified by the user by setting the UNO_PATH
	* environment variable to the program directory of the UNO installation.
	* If no installation is specified by the user, the default installation on
	* the system will be taken. The default installation is read from the
	* default value of the key "Software\OpenOffice\UNO\InstallPath" from the
	* root key HKEY_CURRENT_USER in the Windows Registry. If this key is missing,
	* the key is read from the root key HKEY_LOCAL_MACHINE.</p>
	*/
	int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
	LPSTR lpCmdLine, int nCmdShow )
	{
	const char* ENVVARNAME = "PATH";
	const char* PATHSEPARATOR = ";";

	char const* path = NULL;
	char* value = NULL;
	char* envstr = NULL;
	char* cmdline = NULL;
	int size;
	STARTUPINFO startup_info;
	PROCESS_INFORMATION process_info;
	BOOL bCreate;

	(void) hInstance; /* unused */
	(void) hPrevInstance; /* unused */
	(void) nCmdShow; /* unused */

	/* get the path of the UNO installation */
	path = getPath();

	if ( path != NULL )
	{
	/* The former code to call unoinfo first is removed because we can use the office path
	from the registry or from the UNO_PATH variable directly.
	Further cleanup can remove unoinfo from the installation when all places where it is
	used are checked.
	*/

	/* get the value of the PATH environment variable */
	value = getenv( ENVVARNAME );

	/*
	* add the UNO installation path to the PATH environment variable;
	* note that this only affects the environment variable of the current
	* process, the command processor's environment is not changed
	*/
	size = strlen( ENVVARNAME ) + strlen( "=" ) + strlen( path ) + 1;
	if ( value != NULL )
	size += strlen( PATHSEPARATOR ) + strlen( value );
	envstr = (char*) malloc( size );
	strcpy( envstr, ENVVARNAME );
	strcat( envstr, "=" );
	strcat( envstr, path );
	if ( value != NULL )
	{
	strcat( envstr, PATHSEPARATOR );
	strcat( envstr, value );
	}
	_putenv( envstr );
	free( envstr );
	}
	else
	{
	writeError( "Warning: no UNO installation found!\n" );
	}

	/* create the command line for the application process */
	cmdline = createCommandLine( lpCmdLine );
	if ( cmdline == NULL )
	{
	writeError( "Error: cannot create command line!\n" );
	closeErrorFile();
	return 1;
	}

	/* create the application process */
	memset( &startup_info, 0, sizeof( STARTUPINFO ) );
	startup_info.cb = sizeof( STARTUPINFO );
	bCreate = CreateProcess( NULL, cmdline, NULL, NULL, FALSE, 0, NULL, NULL,
	&startup_info, &process_info );
	free( cmdline );
	if ( !bCreate )
	{
	writeError( "Error: cannot create process!\n" );
	closeErrorFile();
	return 1;
	}

	/* close the error file */
	closeErrorFile();

	return 0;
	}

	/*
	* Gets the path of a UNO installation.
	*
	* @return the installation path or NULL, if no installation was specified or
	* found, or if an error occured
	*/
	char const* getPath()
	{
	char const* path = cppuhelper_detail_findSofficePath();

	if ( path == NULL )
	writeError( "Warning: getting path from Windows Registry failed!\n" );

	return path;
	}

	/*
	* Creates the command line for the application process including the absolute
	* path of the executable.
	*
	* <p>The application's executable file name is the name of this executable
	* prefixed by '_'.</p>
	*
	* @param appendix specifies the command line for the application excluding
	* the executable name
	*
	* @return the command line for the application process or NULL, if an error
	* occured
	*/
	char* createCommandLine( char* appendix )
	{
	const char* CMDPREFIX = "_";
	const char* DQUOTE = "\"";
	const char* SPACE = " ";

	char* cmdline = NULL;

	char cmdname[ _MAX_PATH ];
	char drive[ _MAX_DRIVE ];
	char dir[ _MAX_PATH ];
	char base[ _MAX_FNAME ];
	char newbase[ _MAX_FNAME ];
	char ext[ _MAX_EXT ];

	/* get the absolute path of the executable file */
	if ( GetModuleFileName( NULL, cmdname, sizeof( cmdname ) ) )
	{
	/* prefix the executable file name by '_' */
	_splitpath( cmdname, drive, dir, base, ext );
	strcpy( newbase, CMDPREFIX );
	strcat( newbase, base );
	_makepath( cmdname, drive, dir, newbase, ext );

	/* create the command line */
	cmdline = (char*) malloc( strlen( DQUOTE ) + strlen( cmdname ) +
	strlen ( DQUOTE ) + strlen( SPACE ) + strlen( appendix ) + 1 );
	strcpy( cmdline, DQUOTE );
	strcat( cmdline, cmdname );
	strcat( cmdline, DQUOTE );
	strcat( cmdline, SPACE );
	strcat( cmdline, appendix );
	}

	return cmdline;
	}

	/*
	* Gets the pointer to the error file.
	*
	* <p>The error file will only be created, if create != 0.</p>
	*
	* <p>The error file has the name <executable file name>-error.log and is
	* created in the same directory as the executable file. If this fails,
	* the error file is created in the directory designated for temporary files.
	* </p>

	* @param create specifies, if the error file should be created (create != 0)
	*
	* @return the pointer to the open error file or NULL, if no error file is
	* open or can be created
	*/
	FILE* getErrorFile( int create )
	{
	const char* MODE = "w";
	const char* BASEPOSTFIX = "-error";
	const char* EXTENSION = ".log";

	static FILE* ferr = NULL;

	char fname[ _MAX_PATH ];
	char drive[ _MAX_DRIVE ];
	char dir[ _MAX_PATH ];
	char base[ _MAX_FNAME ];
	char newbase[ _MAX_FNAME ];
	char ext[ _MAX_EXT ];

	if ( ferr == NULL && create )
	{
	/* get the absolute path of the executable file */
	if ( GetModuleFileName( NULL, fname, sizeof( fname ) ) )
	{
	/* create error file in the directory of the executable file */
	_splitpath( fname, drive, dir, base, ext );
	strcpy( newbase, base );
	strcat( newbase, BASEPOSTFIX );
	_makepath( fname, drive, dir, newbase, EXTENSION );
	ferr = fopen( fname, MODE );

	if ( ferr == NULL )
	{
	/* create error file in the temp directory */
	GetTempPath( sizeof( fname ), fname );
	strcat( fname, newbase );
	strcat( fname, EXTENSION );
	ferr = fopen( fname, MODE );
	}
	}
	}

	return ferr;
	}

	/*
	* Writes an error message to the error file.
	*
	* @param errstr specifies the error message
	*/
	void writeError( const char* errstr )
	{
	FILE* ferr = getErrorFile( 1 );
	if ( ferr != NULL )
	{
	fprintf( ferr, errstr );
	fflush( ferr );
	}
	}

	/*
	* Closes the error file.
	*/
	void closeErrorFile()
	{
	FILE* ferr = getErrorFile( 0 );
	if ( ferr != NULL )
	fclose( ferr );
	}