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Fixed bug in DNS triggered when adding two records for the same domain name.

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This commit is contained in:
Matias Fontanini
2012-11-20 16:10:24 -03:00
parent 5fd892c77e
commit d0048e3aef
3 changed files with 47 additions and 11 deletions
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6
src/dns.cpp
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@@ -326,7 +326,7 @@ void DNS::add_suffix(uint32_t index, const uint8_t *data, uint32_t sz) const {
uint32_t DNS::build_suffix_map(uint32_t index, const ResourcesType &lst) const {
const string *str;
for(ResourcesType::const_iterator it(lst.begin()); it != lst.end(); ++it) {
str = it->dname();
str = it->has_domain_name() ? it->dname() : 0;
if(str) {
add_suffix(index, (uint8_t*)str->c_str(), str->size());
index += str->size() + 1;
@@ -374,7 +374,9 @@ void DNS::compose_name(const uint8_t *ptr, uint32_t sz, std::string &out) const
index &= 0x3fff;
SuffixMap::iterator it(suffixes.find(index));
SuffixIndices::iterator suff_it(suffix_indices.find(index));
if(it == suffixes.end() || suff_it == suffix_indices.end())
// We need at least a suffix or a suffix index to compose
// the domain name
if(it == suffixes.end() && suff_it == suffix_indices.end())
throw std::runtime_error("Malformed DNS packet");
bool first(true);
do {