lib/msvcrt/direct/chdrive.c

   1 #include <windows.h>
   2 #include <msvcrt/ctype.h>
   3 #include <msvcrt/direct.h>
   4 #include <msvcrt/stdlib.h>
   5
   6 int cur_drive = 0;
   7
   8 int _chdrive( int drive )
   9 {
  10         char d[3];
  11         if (!( drive >= 1 && drive <= 26 ))
  12                 return -1;
  13
  14         if ( cur_drive != drive ) {
  15                 cur_drive = drive;
  16                 d[0] = toupper(cur_drive + '@');
  17                 d[1] = ':';
  18                 d[2] = 0;
  19                 SetCurrentDirectoryA(d);
  20         }
  21
  22         return 0;
  23 }