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tests: avoid use of freed pointer

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[spotted by coverity]

This is only in tests/, but easy to fix, so...
I've included extra context so you can see how var->value would
be used in the following atoi call.

>From cf9ae83fd2da8d7a289b048ef0feed4096f6d263 Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering@redhat.com>
Date: Tue, 20 Sep 2011 16:32:59 +0200
Subject: [PATCH] avoid use of free'd pointer

* asschk.c (set_type_var): Set var->value to NULL after freeing it,
to avoid subsequent use of freed pointer.
This commit is contained in:
Jim Meyering 2011-09-20 16:35:30 +02:00 • committed by Werner Koch
parent b8b4d5c9e5
commit 850f09b2e3
2 changed files with 10 additions and 1 deletions
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5
tests/asschk.c
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@ -514,7 +514,10 @@ set_type_var (const char *name, const char *value, VARTYPE type)
variable_list = var;
}
else
free (var->value);
{
free (var->value);
var->value = NULL;
}
if (var->type == VARTYPE_FD && var->value)
{