NetBSD Problem Report #53022

From www@NetBSD.org  Tue Feb 13 01:06:03 2018
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Date: Tue, 13 Feb 2018 01:06:02 +0000 (UTC)
From: venture37@geeklan.co.uk
Reply-To: venture37@geeklan.co.uk
To: gnats-bugs@NetBSD.org
Subject: gpt(8) segfaults if invoked without device specified
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>Number:         53022
>Category:       bin
>Synopsis:       gpt(8) segfaults if invoked without device specified
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 13 01:10:00 +0000 2018
>Closed-Date:    Wed Mar 21 00:19:58 +0000 2018
>Last-Modified:  Wed Mar 21 00:19:58 +0000 2018
>Originator:     Sevan Janiyan
>Release:        NetBSD-HEAD
>Organization:
>Environment:
>Description:
gpt(8) assumes the device has been passed when invoked & attempts to enumerated the device in src/sbin/gpt/main.c, then ploughs forward.
As a work around I've added a check in each cmd_$command() 
if (gpt == NULL)
   return usage();
which works and has the benefit of returning the relevant usage for the sub command being invoked. On the other hand, I haven't worked out how to hand things in main() to stop right at the start so I only have to deal with the issue in one place.
>How-To-Repeat:
run gpart show -a
>Fix:

>Release-Note:

>Audit-Trail:

State-Changed-From-To: open->closed
State-Changed-By: sevan@NetBSD.org
State-Changed-When: Wed, 21 Mar 2018 00:19:58 +0000
State-Changed-Why:
Issue being investigated in PR bin/53107


>Unformatted:

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