Date: Mon, 7 Apr 2003 18:54:01 +0100 From: Heiner <h.eichmann@gmx.de> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/50687: ioctl(.., CDIOCCAPABILITY, ...) always reports "Inappropriate ioctl for device" on cd drives Message-ID: <200304071954.01722.h.eichmann@gmx.de> Resent-Message-ID: <200304071800.h37I0Rer041517@freefall.freebsd.org>
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>Number: 50687
>Category: kern
>Synopsis: ioctl(.., CDIOCCAPABILITY, ...) always reports "Inappropriate
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Apr 07 11:00:27 PDT 2003
>Closed-Date:
>Last-Modified:
>Originator: Heiner Eichmann <h.eichmann@gmx.de>
>Release: FreeBSD 4.8-RC2
>Organization:
Sirius Cybernetics Corp.
>Environment:
System: FreeBSD 4.8-RC #2: Thu Apr 3 11:05:05 CEST 2003
root@7of9.unimatrix-zero.borg:/usr/obj/usr/src/sys/MYKERNEL i386
>Description:
A call of ioctl(.., CDIOCCAPABILITY, ...) on a cdrom or cd writer device
(atapi or scsi) alwas returns errno == 25 (Inappropriate ioctl for device).
>How-To-Repeat:
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <sys/cdio.h>
#include <sys/cdrio.h>
#include <sys/ioctl.h>
int main(int argc, char *argv [])
{
int fd = open ("/dev/acd0c", O_RDONLY | O_NONBLOCK);
struct ioc_capability cap;
int ret;
cap.play_function = 0; cap.routing_function = 0; cap.special_function = 0;
ret=ioctl(fd, CDIOCCAPABILITY, &cap);
printf("fd: %d, ret: %d, errno: %d: %s\n", fd, ret, errno, strerror(errno));
close(fd);
return 0;
}
>Fix:
If I understand it correctly, cdioctl() in src/sys/cam/scsi/scsi_cd.c should
handle this ioctl call, but I can not find the CDIOCCAPABILITY case. It
should either be fixed or the corresponding entry in cd(4) should be removed.
>Release-Note:
>Audit-Trail:
>Unformatted:
ioctl for device" on cd drives
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