147 lines
2.9 KiB
C
147 lines
2.9 KiB
C
/*
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* ioctl.c for mdb -- decode an IOCTL system call
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*/
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#include "mdb.h"
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#ifdef SYSCALLS_SUPPORT
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <minix/type.h>
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#include <minix/callnr.h>
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#include <minix/com.h>
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#include <sys/ioctl.h>
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#include <sgtty.h>
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#include "proto.h"
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PRIVATE int get_request;
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PRIVATE char *rnames[] = {
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"TIOCGETP",
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"TIOCSETP",
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"TIOCGETC",
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"TIOCSETC"
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};
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#define GETPNAME 0
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#define SETPNAME 1
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#define GETCNAME 2
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#define SETCNAME 3
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/*
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* decode ioctl call
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* send or receive = 'R' or 'S'
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*/
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void decode_ioctl(sr, m)
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int sr;
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message *m;
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{
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int rq;
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int request, device;
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int high;
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long spek, flags;
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int ispeed, ospeed, speed, erase, kill;
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int t_intrc, t_quitc, t_startc, t_stopc, t_brk, t_eof;
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device = m->m2_i1;
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request = m->m2_i3;
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spek = m->m2_l1;
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flags = m->m2_l2;
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#ifdef DEBUG
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if( debug )
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Printf("%c device=%d request=%c|%d m2_l1=%lx m2_l2=%lx\n",
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sr,device,
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(request >> 8) & BYTE,
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request & BYTE,
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spek,flags);
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#endif
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if ( sr == 'R') request = get_request;
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switch(request) {
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case TIOCGETP:
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case TIOCSETP:
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rq = (request == TIOCGETP) ? GETPNAME : SETPNAME;
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if (sr == 'S') {
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get_request = request;
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Printf( "Sending %s ",rnames[rq] );
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if ( request == TIOCGETP ) break;
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}
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if ( (sr == 'R') && (request == TIOCSETP) ) break;
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erase = (spek >> 8) & BYTE;
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kill = spek & BYTE;
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flags = flags & 0xFFFF;
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speed = (spek >> 16) & 0xFFFFL;
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ispeed = speed & BYTE;
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ospeed = (speed >> 8) & BYTE;
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Printf("%s erase=%d kill=%d speed=%d/%d flags=%lx ",
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rnames[rq], erase, kill, ispeed, ospeed, flags);
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break;
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case TIOCGETC:
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case TIOCSETC:
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rq = (request == TIOCGETC) ? GETCNAME : SETCNAME;
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if (sr == 'S') {
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get_request = request;
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Printf( "Sending %s ",rnames[rq] );
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if ( request == TIOCGETC ) break;
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}
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if ( (sr == 'R') && (request == TIOCSETC) ) break;
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t_intrc = (spek >> 24) & BYTE;
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t_quitc = (spek >> 16) & BYTE;
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t_startc = (spek >> 8) & BYTE;
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t_stopc = (spek >> 0) & BYTE;
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t_brk = flags & BYTE;
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t_eof = (flags >> 8 ) & BYTE;
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Printf("%s int %d quit %d start %d stop %d brk %d eof %d\n",
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rnames[rq],
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t_intrc, t_quitc, t_startc, t_stopc, t_brk, t_eof);
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break;
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default:
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#ifdef __i86 /* 16 bit */
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if ( sr == 'S' ) {
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Printf("Sending ");
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get_request = request;
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}
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else
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Printf("Receiving ");
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Printf("Other IOCTL device=%d request=%c|%d\n",
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device, (request >> 8) & BYTE, request & BYTE );
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break;
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#endif
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#ifdef __i386 /* 32 bit encoding */
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if ( sr == 'S' ) {
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Printf("Sending (%lx) ", request);
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get_request = request;
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}
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else
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Printf("Receiving (%lx) ", request);
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high = ( request & 0xFFFF0000 ) >> 16 ;
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request &= _IOCTYPE_MASK;
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Printf("Other IOCTL device=%d request=%c|%d flags=%x size =%d\n",
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device, (request >> 8) & BYTE, request & BYTE,
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(high & ~_IOCPARM_MASK ),
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(high & _IOCPARM_MASK )
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);
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break;
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#endif
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}
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Printf("\n");
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}
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#endif /* SYSCALLS_SUPPORT */
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