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resolve_hostname_addresses: retrieve every addresses associated with a hostname

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This commit is contained in:
James 2017-10-18 21:47:50 +02:00 • committed by Rémi Verschelde
parent 2712014744
commit 010a3433df
5 changed files with 113 additions and 27 deletions
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21
drivers/unix/ip_unix.cpp
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@ -85,7 +85,7 @@ static IP_Address _sockaddr2ip(struct sockaddr *p_addr) {
return ip;
};
IP_Address IP_Unix::_resolve_hostname(const String &p_hostname, Type p_type) {
void IP_Unix::_resolve_hostname(List<IP_Address> &r_addresses, const String &p_hostname, Type p_type) const {
struct addrinfo hints;
struct addrinfo *result;
@ -105,19 +105,28 @@ IP_Address IP_Unix::_resolve_hostname(const String &p_hostname, Type p_type) {
int s = getaddrinfo(p_hostname.utf8().get_data(), NULL, &hints, &result);
if (s != 0) {
ERR_PRINT("getaddrinfo failed!");
return IP_Address();
return;
};
if (result == NULL || result->ai_addr == NULL) {
ERR_PRINT("Invalid response from getaddrinfo");
return IP_Address();
return;
};
IP_Address ip = _sockaddr2ip(result->ai_addr);
struct addrinfo *next = result;
do {
if (next->ai_addr == NULL) {
next = next->ai_next;
continue;
}
IP_Address ip = _sockaddr2ip(next->ai_addr);
if (!r_addresses.find(ip))
r_addresses.push_back(ip);
next = next->ai_next;
} while (next);
freeaddrinfo(result);
return ip;
}
#if defined(WINDOWS_ENABLED)