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Date: Wed, 12 Jul 2000 12:47:44 +0200
From: Yves Jaeger <yves.jaeger@aachen.utimaco.de>
To: FreeBSD-gnats-submit@freebsd.org
Subject: kern/19865: atapi-cd.c does not check CDIOCREADSUBCHANNEL data format
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>Number:         19865
>Category:       kern
>Synopsis:       atapi-cd.c does not check CDIOCREADSUBCHANNEL data format
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Jul 12 03:50:03 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Yves Jaeger
>Release:        FreeBSD 3.2-RELEASE i386
>Organization:
Utimaco Safeware AG
>Environment:

        Kernel configuration that uses atapi-cd.c

>Description:

        cdcontrol shows the wrong media status if atapi-cd.c is used.

>How-To-Repeat:

        insert a disk in a cd-rom drive, run cdcontrol and then enter
the command
          status media
        then you'll see a media catalog information but no output should
displayed

>Fix:
        
*** atapi-cd.c.orig     Mon Jul 10 13:52:23 2000
--- atapi-cd.c  Mon Jul 10 13:57:24 2000
***************
*** 751,756 ****
--- 751,762 ----
              u_long len = args->data_len;
              int abslba, rellba;
  
+             /* the following 4 lines are inserted by yves jaeger on
jul 9, 2000                   */
+             /* currently supported is only the data_format
CD_CURRENT_POSITION                    */
+             /* TODO: support other values for
data_format                                         */
+             if (args->data_format != CD_CURRENT_POSITION)
+                 return (EINVAL);
+                                                               
              if (len > sizeof(data) ||
                  len < sizeof(struct cd_sub_channel_header))
                  return EINVAL;

>Release-Note:
>Audit-Trail:
>Unformatted:


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