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[trac847] Don't increment invalid iterator

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The problem was, it was increased after invalidating once before
checking the condition again. It is probably harmless, but according to
the letter not legal.
This commit is contained in:
Michal 'vorner' Vaner
2011-04-25 20:35:34 +02:00
parent e5cae84640
commit 0194e3a376
1 changed files with 6 additions and 5 deletions
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11
src/bin/resolver/response_scrubber.cc
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@@ -1,4 +1,3 @@
// Copyright (C) 2011 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
@@ -50,7 +49,7 @@ ResponseScrubber::Category ResponseScrubber::addressCheck(
unsigned int
ResponseScrubber::scrubSection(Message& message,
const vector<const Name*>& names,
const NameComparisonResult::NameRelation connection,
const NameComparisonResult::NameRelation connection,
const Message::Section section)
{
unsigned int count = 0; // Count of RRsets removed
@@ -74,22 +73,23 @@ ResponseScrubber::scrubSection(Message& message,
// Start looking at the remaining entries in the section.
removed = false;
for (; (i != message.endSection(section)) && (!removed); ++i) {
for (; i != message.endSection(section); ++i) {
// Loop through the list of names given and see if any are in the
// given relationship with the QNAME of this RRset
bool nomatch = true;
for (vector<const Name*>::const_iterator n = names.begin();
((n != names.end()) && nomatch); ++n) {
((n != names.end())); ++n) {
NameComparisonResult result = (*i)->getName().compare(**n);
NameComparisonResult::NameRelation relationship =
result.getRelation();
if ((relationship == NameComparisonResult::EQUAL) ||
(relationship == connection)) {
// RRset in the specified relationship, so a match has
// been found
nomatch = false;
break;
}
}
@@ -98,6 +98,7 @@ ResponseScrubber::scrubSection(Message& message,
message.removeRRset(section, i);
++count; // One more RRset removed
removed = true; // Something was removed
break; // It invalidated the iterators, start again
} else {
// There was a match so this is one more entry we can skip next