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add CUdpSocket::Open() to address family selection

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Open(uint16 uiPort) -> Open(uint16 uiPort, int af = AF_UNSPEC)
This commit is contained in:
SASANO Takayoshi 2021-04-06 05:15:07 +09:00
parent a90b01549e
commit 690d234351
2 changed files with 7 additions and 5 deletions
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10
src/cudpsocket.cpp
View file

@ -50,7 +50,7 @@ CUdpSocket::~CUdpSocket()
////////////////////////////////////////////////////////////////////////////////////////
// open & close
bool CUdpSocket::Open(uint16 uiPort)
bool CUdpSocket::Open(uint16 uiPort, int af)
{
bool open = false;
struct sockaddr_storage *ss;
@ -61,9 +61,11 @@ bool CUdpSocket::Open(uint16 uiPort)
m_Ip[i] = CIp(g_Reflector.GetListenIp(i), uiPort);
ss = m_Ip[i].GetSockAddr(ss_len);
// create socket
// (avoid INADDR_ANY on secondary and later IP address)
m_Socket[i] = ( i != 0 && g_Reflector.GetListenIp(i) == CIp() ) ?
// create socket, avoid two cases:
// 1. address family is specified and not matched
// 2. INADDR_ANY (0.0.0.0) on secondary and later IP address
m_Socket[i] = ( ( af != AF_UNSPEC && af != ss->ss_family ) ||
( i != 0 && g_Reflector.GetListenIp(i) == CIp() ) ) ?
-1 : socket(ss->ss_family, SOCK_DGRAM, 0);
if ( m_Socket[i] != -1 )
{

2
src/cudpsocket.h
View file

@ -57,7 +57,7 @@ public:
~CUdpSocket();
// open & close
bool Open(uint16);
bool Open(uint16, int = AF_UNSPEC);
void Close(void);
int GetSocket(const CIp &);