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Re: [PATCH] Fix 'array subscript is above array bounds' warning in res_send.c

From: Siddhesh Poyarekar <siddhesh at redhat dot com>
To: Adhemerval Zanella <azanella at linux dot vnet dot ibm dot com>
Cc: libc-alpha at sourceware dot org
Date: Tue, 16 Dec 2014 18:35:25 +0530
Subject: Re: [PATCH] Fix 'array subscript is above array bounds' warning in res_send.c
Authentication-results: sourceware.org; auth=none
References: <20141216100950 dot GM30928 at spoyarek dot pnq dot redhat dot com> <mvm388fkifz dot fsf at hawking dot suse dot de> <20141216104514 dot GN30928 at spoyarek dot pnq dot redhat dot com> <mvmy4q7j20b dot fsf at hawking dot suse dot de> <20141216112624 dot GO30928 at spoyarek dot pnq dot redhat dot com> <5490254E dot 8060508 at linux dot vnet dot ibm dot com> <20141216125211 dot GW30928 at spoyarek dot pnq dot redhat dot com> <54902C9E dot 5030408 at linux dot vnet dot ibm dot com>

On Tue, Dec 16, 2014 at 10:59:10AM -0200, Adhemerval Zanella wrote:
> My understanding is to not shadow possible compiler issues with unrequired
> code.

I don't think this is a compiler issue since I don't think the
compiler will ever be able to evaluate that the range for the nscounts
will be limited to MAXNS.  In fact, given the wide usage of nscount
within the code, a bug could technically send the nscounts beyond
MAXNS.

Siddhesh

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Follow-Ups:
- Re: [PATCH] Fix 'array subscript is above array bounds' warning in res_send.c
  - From: Adhemerval Zanella
- Re: [PATCH] Fix 'array subscript is above array bounds' warning in res_send.c
  - From: Andreas Schwab

References:
- [PATCH] Fix 'array subscript is above array bounds' warning in res_send.c
  - From: Siddhesh Poyarekar
- Re: [PATCH] Fix 'array subscript is above array bounds' warning in res_send.c
  - From: Andreas Schwab
- Re: [PATCH] Fix 'array subscript is above array bounds' warning in res_send.c
  - From: Siddhesh Poyarekar
- Re: [PATCH] Fix 'array subscript is above array bounds' warning in res_send.c
  - From: Andreas Schwab
- Re: [PATCH] Fix 'array subscript is above array bounds' warning in res_send.c
  - From: Siddhesh Poyarekar
- Re: [PATCH] Fix 'array subscript is above array bounds' warning in res_send.c
  - From: Adhemerval Zanella
- Re: [PATCH] Fix 'array subscript is above array bounds' warning in res_send.c
  - From: Siddhesh Poyarekar
- Re: [PATCH] Fix 'array subscript is above array bounds' warning in res_send.c
  - From: Adhemerval Zanella

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