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add erroring if there are already 65536 id's in transit

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git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@4669 e03df62e-2008-0410-955e-edbf42e46eb7
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brain 2006-08-03 14:42:18 +00:00
parent 43759fd180
commit b7d632aa9a
1 changed files with 5 additions and 2 deletions
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7
src/dns.cpp
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@ -202,6 +202,9 @@ int DNSRequest::SendRequests(const DNSHeader *header, const int length, QueryTyp
/* Add a query with a predefined header, and allocate an ID for it. */
DNSRequest* DNS::AddQuery(DNSHeader *header, int &id)
{
if (requests.size() == DNS::MAX_REQUEST_ID + 1)
return NULL;
id = this->PRNG() & DNS::MAX_REQUEST_ID;
/* This id is already 'in flight', pick another.
@ -351,7 +354,7 @@ int DNS::GetIP(const char *name)
DNSRequest* req = this->AddQuery(&h, id);
if (req->SendRequests(&h, length, DNS_QUERY_A) == -1)
if ((!req) || (req->SendRequests(&h, length, DNS_QUERY_A) == -1))
return -1;
return id;
@ -377,7 +380,7 @@ int DNS::GetName(const insp_inaddr *ip)
DNSRequest* req = this->AddQuery(&h, id);
if (req->SendRequests(&h, length, DNS_QUERY_PTR) == -1)
if ((!req) || (req->SendRequests(&h, length, DNS_QUERY_PTR) == -1))
return -1;
return id;