icinga2/base/tcpsocket.cpp

81 lines
1.5 KiB
C++

#include "i2-base.h"
using namespace icinga;
void TCPSocket::MakeSocket(int family)
{
assert(GetFD() == INVALID_SOCKET);
int fd = socket(family, SOCK_STREAM, 0);
if (fd == INVALID_SOCKET) {
HandleSocketError();
return;
}
SetFD(fd);
}
void TCPSocket::Bind(string service, int family)
{
Bind(string(), service, family);
}
void TCPSocket::Bind(string node, string service, int family)
{
addrinfo hints;
addrinfo *result;
memset(&hints, 0, sizeof(hints));
hints.ai_family = family;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
hints.ai_flags = AI_PASSIVE;
if (getaddrinfo(node.empty() ? NULL : node.c_str(), service.c_str(), &hints, &result) < 0) {
HandleSocketError();
return;
}
int fd = INVALID_SOCKET;
for (addrinfo *info = result; info != NULL; info = info->ai_next) {
fd = socket(info->ai_family, info->ai_socktype, info->ai_protocol);
if (fd == INVALID_SOCKET)
continue;
SetFD(fd);
const int optFalse = 0;
setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (char *)&optFalse, sizeof(optFalse));
#ifndef _WIN32
const int optTrue = 1;
setsockopt(GetFD(), SOL_SOCKET, SO_REUSEADDR, (char *)&optTrue, sizeof(optTrue));
#endif /* _WIN32 */
int rc = ::bind(fd, info->ai_addr, info->ai_addrlen);
#ifdef _WIN32
if (rc < 0 && WSAGetLastError() != WSAEWOULDBLOCK) {
#else /* _WIN32 */
if (rc < 0 && errno != EINPROGRESS) {
#endif /* _WIN32 */
closesocket(fd);
SetFD(INVALID_SOCKET);
continue;
}
break;
}
if (fd == INVALID_SOCKET)
HandleSocketError();
freeaddrinfo(result);
}