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
   7 int cur_drive = 0;
   8
   9
  10 int _chdrive(int drive)
  11 {
  12     char d[3];
  13
  14     if (!( drive >= 1 && drive <= 26))
  15         return -1;
  16     if (cur_drive != drive) {
  17         cur_drive = drive;
  18         d[0] = toupper(cur_drive + '@');
  19         d[1] = ':';
  20         d[2] = 0;
  21         SetCurrentDirectoryA(d);
  22     }
  23     return 0;
  24 }