From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Sat, 8 Nov 2014 17:16:41 +0000 (-0500)
Subject: Fix: off-by-one in sequence filter comparator
X-Git-Tag: v2.4.3~7
X-Git-Url: https://git.lttng.org/?a=commitdiff_plain;h=4db6ca96415350161cce90319d647f950cd8a62e;hp=4db6ca96415350161cce90319d647f950cd8a62e;p=lttng-ust.git

Fix: off-by-one in sequence filter comparator

If we pass the following sequence as event input:
- field name "seqfield2"
- seq. len.: 4
- sequence array: "testA" (5 characters),

The following filters do not have the intended effect:
* 'seqfield2=="testA"'
  - expected: no match.
  - actual behavior: match.

* 'seqfield2=="test"'
  - expected: match.
  - actual behavior: no match.

This is caused by an off-by-one in the comparison with sequence length
in the filter bytecode interpreter.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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