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Enable IPv6 DNS ExtIpFinder

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Now empty node with only IPv6 can connect to other.
This commit is contained in:
Phenom 2021-11-03 15:08:55 +01:00
parent a09db6717b
commit 81d2ddd7c7
12 changed files with 407 additions and 188 deletions
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14
libretroshare/src/util/rsnet.cc
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@ -168,7 +168,7 @@ bool rsGetHostByName(const std::string& hostname, in_addr& returned_addr)
return ok;
}
bool rsGetHostByNameSpecDNS(const std::string& servername, const std::string& hostname, std::string& returned_addr)
bool rsGetHostByNameSpecDNS(const std::string& servername, const std::string& hostname, std::string& returned_addr, int timeout_s /*= -1*/)
{
#ifdef DEBUG_SPEC_DNS
RsDbg()<<__PRETTY_FUNCTION__<<" servername="<< servername << " hostname=" << hostname << std::endl;
@ -265,6 +265,18 @@ bool rsGetHostByNameSpecDNS(const std::string& servername, const std::string& ho
#endif
int s = isIPV4 ? socket(AF_INET , SOCK_DGRAM , IPPROTO_UDP)
: socket(AF_INET6 , SOCK_DGRAM , IPPROTO_UDP) ; //UDP packet for DNS queries
if (timeout_s > -1)
{
#ifdef WINDOWS_SYS
DWORD timeout = timeout_s * 1000;
setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout, sizeof timeout);
#else
struct timeval tv;
tv.tv_sec = timeout_s;
tv.tv_usec = 0;
setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof tv);
#endif
}
ssize_t send_size = sendto(s, (char*)buf, curSendSize, 0
,isIPV4 ? (struct sockaddr*)&dest4
: (struct sockaddr*)&dest6