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Add an assertion that l_get_dns_servers doesn't return any DNS servers is

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!o.mass_dns. Simplify the loop that builds the server list.
This commit is contained in:
david 2008-10-30 22:06:37 +00:00
parent fef3ba7f37
commit aeae42ddc3
1 changed files with 8 additions and 5 deletions
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13
nmap_dns.cc
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@ -1345,12 +1345,15 @@ std::list<std::string> get_dns_servers() {
if(servs.size() == 0 && firstrun) {
nmap_mass_rdns(NULL, 0);
}
// If the user said --system-dns (!o.mass_dns), we should never return a list
// of servers.
assert(o.mass_dns || servs.empty());
std::list<dns_server *>::iterator servI;
std::list<std::string> serverList;
dns_server *tpserv;
for(servI = servs.begin(); servI != servs.end(); servI++) {
tpserv = *servI;
serverList.push_back(inet_ntoa(tpserv->addr.sin_addr));
}
for(servI = servs.begin(); servI != servs.end(); servI++)
serverList.push_back(inet_ntoa((*servI)->addr.sin_addr));
return serverList;
}