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  1. /****************************************************************************
  2. *
  3. *                            Open Watcom Project
  4. *
  5. *    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
  6. *
  7. *  ========================================================================
  8. *
  9. *    This file contains Original Code and/or Modifications of Original
  10. *    Code as defined in and that are subject to the Sybase Open Watcom
  11. *    Public License version 1.0 (the 'License'). You may not use this file
  12. *    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
  13. *    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
  14. *    provided with the Original Code and Modifications, and is also
  15. *    available at www.sybase.com/developer/opensource.
  16. *
  17. *    The Original Code and all software distributed under the License are
  18. *    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  19. *    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
  20. *    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
  21. *    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
  22. *    NON-INFRINGEMENT. Please see the License for the specific language
  23. *    governing rights and limitations under the License.
  24. *
  25. *  ========================================================================
  26. *
  27. * Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
  28. *               DESCRIBE IT HERE!
  29. *
  30. ****************************************************************************/
  31.  
  32.  
  33. #include "variety.h"
  34. #include "widechar.h"
  35. #include <stddef.h>
  36. #include <stdlib.h>
  37. #include <string.h>
  38. #include <errno.h>
  39. #include <stdio.h>
  40. #include <dos.h>
  41. #include <direct.h>
  42. #include "rtdata.h"
  43. #include "seterrno.h"
  44. #include "liballoc.h"
  45.  
  46. int _stdcall sys_getcwd(char *buf, size_t size);
  47.  
  48. _WCRTLINK CHAR_TYPE *__F_NAME(getcwd,_wgetcwd)( CHAR_TYPE *buf, size_t size )
  49. {
  50.     char           path[1024];
  51.     size_t         realsize;
  52.  
  53.     /*** Get the current directory ***/
  54.     realsize = sys_getcwd( path, 1024 );
  55.  
  56.     if( realsize == 0 ) {
  57.         return( NULL );
  58.     }
  59.     if( buf == NULL ) {
  60.         buf = lib_malloc( max(size,realsize) * CHARSIZE );
  61.         if( buf == NULL ) {
  62.             __set_errno( ENOMEM );
  63.             return( NULL );
  64.         }
  65.     } else {
  66.         if( realsize > size ) {
  67.             __set_errno( ERANGE );
  68.             return( NULL );
  69.         }
  70.     }
  71.  
  72.     memcpy( buf, path, realsize*CHARSIZE );
  73.     return( buf );
  74. }
  75.