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    revision 815 by niro, Sat Sep 1 22:45:15 2007 UTC revision 816 by niro, Fri Apr 24 18:33:46 2009 UTC
    # Line 10  Line 10 
    10    
    11  /* no options, no getopt */  /* no options, no getopt */
    12    
    13  #include "busybox.h"  #include "libbb.h"
    14    
    15  /* From <linux/vt.h> */  /* From <linux/vt.h> */
    16  enum { VT_DISALLOCATE = 0x5608 }; /* free memory associated to vt */  enum { VT_DISALLOCATE = 0x5608 }; /* free memory associated to vt */
    17    
    18  int deallocvt_main(int argc, char *argv[])  int deallocvt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
    19    int deallocvt_main(int argc UNUSED_PARAM, char **argv)
    20  {  {
    21   /* num = 0 deallocate all unused consoles */   /* num = 0 deallocate all unused consoles */
    22   int num = 0;   int num = 0;
    23    
    24   switch (argc) {   if (argv[1]) {
    25   case 2:   if (argv[2])
    26   num = xatoul_range(argv[1], 1, 63);   bb_show_usage();
    27   /* Fallthrough */   num = xatou_range(argv[1], 1, 63);
      case 1:  
      break;  
      default:  
      bb_show_usage();  
    28   }   }
    29    
    30   if (-1 == ioctl(get_console_fd(), VT_DISALLOCATE, num)) {   /* double cast suppresses "cast to ptr from int of different size" */
    31   bb_perror_msg_and_die("VT_DISALLOCATE");   xioctl(get_console_fd_or_die(), VT_DISALLOCATE, (void *)(ptrdiff_t)num);
      }  
    32   return EXIT_SUCCESS;   return EXIT_SUCCESS;
    33  }  }
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