dns_utils: fix infinite recursion when distributing empty dns_urls

load_txt_records_from_dns attempts to distribute `a = 0, b = -1` where
(b = dns_urls.size() - 1) and IntType is signed integer. This results in
an infinite recursion which leads to SIGSEGV.
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anonimal 2017-02-21 14:38:22 +00:00
parent 95f59f8c1f
commit 5c3badb749
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1 changed files with 3 additions and 0 deletions

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@ -478,6 +478,9 @@ namespace
bool load_txt_records_from_dns(std::vector<std::string> &good_records, const std::vector<std::string> &dns_urls)
{
// Prevent infinite recursion when distributing
if (dns_urls.empty()) return false;
std::vector<std::vector<std::string> > records;
records.resize(dns_urls.size());