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ParseSocketAddress 使用 uv_getaddrinfo 对 host 进行DNS 解析 #68

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Merged
CppCXY merged 1 commit into from
Jun 18, 2024
Merged

ParseSocketAddress 使用 uv_getaddrinfo 对 host 进行DNS 解析 #68

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27 changes: 12 additions & 15 deletions emmy_debugger/src/transporter/transporter.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -245,21 +245,18 @@ int Transporter::Stop()
return 0;
}

bool Transporter::ParseSocketAddress(const std::string &host, int port, sockaddr_storage *addr, std::string &err)
bool Transporter::ParseSocketAddress(const std::string &host, int port, sockaddr_storage *addr, std::string &err)
{
const int ip6_addr_res = uv_ip6_addr(host.c_str(), port, reinterpret_cast<sockaddr_in6 *>(addr));// 尝试使用IPv6地址
if (ip6_addr_res == 0) {
return true;
auto const loop = uv_default_loop();
uv_getaddrinfo_t resolver;
int res = uv_getaddrinfo(loop, &resolver, nullptr, host.c_str(),
std::to_string(port).c_str(), nullptr);
if (res != 0) {
err = "Invalid host: ";
err += uv_strerror(res);
return false;
}

const int ip4_addr_res = uv_ip4_addr(host.c_str(), port, reinterpret_cast<sockaddr_in *>(addr));// 如果失败，改用IPv4地址
if (ip4_addr_res == 0) {
return true;
}

err = "Invalid host. IPv6 error: ";
err += uv_strerror(ip6_addr_res);
err += ". IPv4 error: ";
err += uv_strerror(ip4_addr_res);
return false;
memcpy(addr, resolver.addrinfo->ai_addr, resolver.addrinfo->ai_addrlen);
uv_freeaddrinfo(resolver.addrinfo);
return true;
}