commands/mdb/ioctl.c

   1 /*
   2  * ioctl.c for mdb -- decode an IOCTL system call
   3  */
   4 #include "mdb.h"
   5 #ifdef SYSCALLS_SUPPORT
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <string.h>
   9 #include <fcntl.h>
  10 #include <sys/stat.h>
  11 #include <minix/type.h>
  12 #include <minix/callnr.h>
  13 #include <minix/com.h>
  14 #include <sys/ioctl.h>
  15 #include <sgtty.h>
  16 #include "proto.h"
  17
  18 static int get_request;
  19
  20 /*
  21  * decode ioctl call
  22  * send or receive = 'R' or 'S'
  23  */
  24 void decode_ioctl(sr, m)
  25 int sr;
  26 message *m;
  27 {
  28 int request, device;
  29 int high;
  30 long spek, flags;
  31
  32    device  = m->m2_i1;
  33    request = m->m2_i3;
  34    spek    = m->m2_l1;
  35    flags   = m->m2_l2;
  36
  37 #ifdef DEBUG
  38    if( debug )
  39    Printf("%c device=%d request=%c|%d m2_l1=%lx m2_l2=%lx\n",
  40         sr,device,
  41         (request >> 8) & BYTE,
  42         request & BYTE,
  43         spek,flags);
  44 #endif
  45
  46    if ( sr == 'R') request = get_request;
  47
  48    if ( sr == 'S' ) {
  49         Printf("Sending (%lx) ",   request);
  50         get_request = request;
  51    }
  52    else
  53         Printf("Receiving (%lx) ", request);
  54
  55    high = ( request & 0xFFFF0000 ) >> 16 ;
  56    request &= _IOCTYPE_MASK;
  57
  58    Printf("Other IOCTL device=%d request=%c|%d flags=%x size =%d\n",
  59         device, (request >> 8) & BYTE, request & BYTE,
  60         (high  &  ~_IOCPARM_MASK ),
  61         (high  &   _IOCPARM_MASK )
  62         );
  63    Printf("\n");
  64 }
  65
  66
  67 #endif /* SYSCALLS_SUPPORT */