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Message-Id: <199805302200.PAA11636@hub.freebsd.org>
Date: Sat, 30 May 1998 15:00:56 -0700 (PDT)
From: ian@nmsu.edu
To: freebsd-gnats-submit@FreeBSD.ORG
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Subject: bin/6799: problem with open(2) in libc_r and opening tape device
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>Number:         6799
>Category:       bin
>Synopsis:       problem with open(2) in libc_r and opening tape device
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:
>Keywords:
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat May 30 15:10:00 PDT 1998
>Last-Modified:
>Originator:     Ian Logan
>Organization:
New Mexico State University
>Release:        2.2.6 from the April-98 CDset
>Environment:
FreeBSD kona 2.2.6-RELEASE FreeBSD 2.2.6-RELEASE #0: Wed Mar 25 02:28:49 GMT 1998
     jkh@time.cdrom.com:/usr/src/sys/compile/GENERIC  i386

>Description:
I am trying to open a tape device for reading(or writting doesn't seem
to matter), if I link with the normal C library everything works great.  
If I link with libc_r I get a "inappropriate ioctl for device mesage".
I am using a K6, with 64MB of memory, a Buslogic BT948 SCSI card, and
a Seagate STT8000N tape drive.  Everything on the machine is straight off 
the CD.
>How-To-Repeat:
The following program demonstrates the bug everytime, here is how I'm 
compiling and running it.

% cc -DREENTRANT bug.c
% ./a.out
% cc -DREENTRANT bug.c -lc_r
% ./a.out
Open:: Inappropriate ioctl for device

And here is the source:

#include <stdio.h>
#include <errno.h>
#include <fcntl.h>

int main (void){
int handle;
handle=open("/dev/nrst0",O_RDWR);
 if(handle == -1){
   perror("Open:");
   return(1);
 }else{
   close(handle);
 }
 
}
>Fix:
I don't have a fix for it at this time.
>Audit-Trail:
>Unformatted:

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