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https://port.numenaute.org/aleajactaest/khanat-code-old.git
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Fixed: #1073 Replace deprecated functions gethostbyname and gethostbyaddr
This commit is contained in:
kervala
parent
b1854065cf
commit
9fde74ff28
2 changed files with 117 additions and 51 deletions
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@ -143,6 +143,9 @@ protected:
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/// Constructor with ip address, port=0
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CInetAddress( const in_addr *ip, const char *hostname = 0);
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/// Update _HostName from _SockAddr
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void updateHostName();
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private:
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// Called in all constructors. Calls CBaseSocket::init().
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@ -27,6 +27,8 @@
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#ifdef NL_OS_WINDOWS
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# include <winsock2.h>
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# include <ws2tcpip.h>
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// for Windows 2000 compatibility
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# include <wspiapi.h>
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#elif defined NL_OS_UNIX
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# include <unistd.h>
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# include <sys/socket.h>
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@ -40,6 +42,9 @@
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using namespace std;
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using namespace NLMISC;
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#ifndef NI_MAXHOST
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# define NI_MAXHOST 1025
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#endif
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namespace NLNET
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{
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@ -74,20 +79,32 @@ CInetAddress::CInetAddress( const in_addr *ip, const char *hostname )
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}
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else
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{
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hostent *phostent = gethostbyaddr( (char*)&ip->s_addr, 4, AF_INET );
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if ( phostent == NULL )
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{
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_HostName = ipAddress();
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}
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else
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{
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_HostName = string( phostent->h_name );
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}
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updateHostName();
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}
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_Valid = true;
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}
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/*
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* Update _HostName from _SockAddr current value
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*/
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void CInetAddress::updateHostName()
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{
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char host[NI_MAXHOST];
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sint status = getnameinfo((struct sockaddr *) _SockAddr, sizeof (struct sockaddr), host, NI_MAXHOST, NULL, 0, NI_NUMERICSERV);
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if ( status )
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{
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_HostName = ipAddress();
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}
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else
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{
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_HostName = string( host );
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}
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}
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/*
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* Alternate constructor (calls setByName())
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*/
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@ -148,16 +165,6 @@ bool operator==( const CInetAddress& a1, const CInetAddress& a2 )
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*/
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bool operator<( const CInetAddress& a1, const CInetAddress& a2 )
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{
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#ifdef NL_OS_WINDOWS
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if ( a1._SockAddr->sin_addr.S_un.S_addr == a2._SockAddr->sin_addr.S_un.S_addr )
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{
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return ( a1.port() < a2.port() );
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}
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else
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{
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return ( a1._SockAddr->sin_addr.S_un.S_addr < a2._SockAddr->sin_addr.S_un.S_addr );
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}
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#elif defined NL_OS_UNIX
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if ( a1._SockAddr->sin_addr.s_addr == a2._SockAddr->sin_addr.s_addr )
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{
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return ( a1.port() < a2.port() );
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@ -166,7 +173,6 @@ bool operator<( const CInetAddress& a1, const CInetAddress& a2 )
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{
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return ( a1._SockAddr->sin_addr.s_addr < a2._SockAddr->sin_addr.s_addr );
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}
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#endif
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}
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@ -223,26 +229,59 @@ CInetAddress& CInetAddress::setByName( const std::string& hostName )
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{
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// Try to convert directly for addresses such as a.b.c.d
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in_addr iaddr;
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#ifdef NL_OS_WINDOWS
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iaddr.S_un.S_addr = inet_addr( hostName.c_str() );
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if ( iaddr.S_un.S_addr == INADDR_NONE )
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#elif defined NL_OS_UNIX
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iaddr.s_addr = inet_addr( hostName.c_str() );
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if ( iaddr.s_addr == INADDR_NONE )
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#endif
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{
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// Otherwise use the traditional DNS look-up
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hostent *phostent = gethostbyname( hostName.c_str() );
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if ( phostent == NULL )
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struct addrinfo hints;
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_UNSPEC; // AF_INET or AF_INET6 to force version
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hints.ai_socktype = SOCK_STREAM;
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struct addrinfo *res = NULL;
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sint status = getaddrinfo(hostName.c_str(), NULL, &hints, &res);
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if (status)
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{
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_Valid = false;
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LNETL0_DEBUG( "LNETL0: Network error: resolution of hostname '%s' failed", hostName.c_str() );
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LNETL0_DEBUG( "LNETL0: Network error: resolution of hostname '%s' failed: %s", hostName.c_str(), gai_strerror(status) );
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// return *this;
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throw ESocket( (string("Hostname resolution failed for ")+hostName).c_str() );
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}
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_HostName = string( phostent->h_name );
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memcpy( &_SockAddr->sin_addr, phostent->h_addr, sizeof(in_addr) );
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struct addrinfo *p = res;
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// process all addresses
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while (p != NULL)
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{
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// check address family
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if (p->ai_family == AF_INET)
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{
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// ipv4
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struct sockaddr_in *ipv4 = (struct sockaddr_in *)p->ai_addr;
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// convert the IP to a string
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_HostName = string(inet_ntoa(ipv4->sin_addr));
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memcpy( &_SockAddr->sin_addr, &ipv4->sin_addr, sizeof(in_addr) );
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}
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else if (p->ai_family == AF_INET6)
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{
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// ipv6
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// TODO: modify class to be able to handle IPv6
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// struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)p->ai_addr;
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// convert the IP to a string
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// inet_ntop(p->ai_family, addr, ipstr, sizeof(ipstr));
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// memcpy( &_SockAddr->sin_addr, &ipv6->sin_addr, sizeof(in_addr) );
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}
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// process next address
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p = p->ai_next;
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}
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// free the linked list
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freeaddrinfo(res);
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}
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else
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{
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@ -275,15 +314,7 @@ void CInetAddress::setSockAddr( const sockaddr_in* saddr )
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// Warning: when it can't find it, it take more than 4 seconds
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if ( CInetAddress::RetrieveNames )
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{
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hostent *phostent = gethostbyaddr( (char*)&saddr->sin_addr.s_addr, 4, AF_INET );
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if ( phostent == NULL )
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{
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_HostName = ipAddress();
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}
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else
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{
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_HostName = string( phostent->h_name );
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}
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updateHostName();
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}
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_Valid = true;
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}
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@ -476,20 +507,52 @@ std::vector<CInetAddress> CInetAddress::localAddresses()
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// 2. Get address list
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vector<CInetAddress> vect;
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uint i = 0;
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for(;;)
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struct addrinfo hints;
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_UNSPEC; // AF_INET or AF_INET6 to force version
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hints.ai_socktype = SOCK_STREAM;
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struct addrinfo *res = NULL;
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sint status = getaddrinfo(localhost, NULL, &hints, &res);
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if (status)
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{
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hostent *phostent = gethostbyname( localhost );
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if ( phostent == NULL ) // will come here if the local hostname (/etc/hostname in Linux) is not the real name
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throw ESocket( (string("Hostname resolution failed for ")+string(localhost)).c_str() );
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if (phostent->h_addr_list[i] == 0)
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break;
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vect.push_back( CInetAddress( (const in_addr*)(phostent->h_addr_list[i]), localhost ) );
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i++;
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// will come here if the local hostname (/etc/hostname in Linux) is not the real name
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throw ESocket( (string("Hostname resolution failed for ")+string(localhost)).c_str() );
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}
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struct addrinfo *p = res;
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// process all addresses
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while (p != NULL)
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{
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// check address family
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if (p->ai_family == AF_INET)
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{
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// ipv4
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struct sockaddr_in *ipv4 = (struct sockaddr_in *)p->ai_addr;
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vect.push_back( CInetAddress( &ipv4->sin_addr, localhost ) );
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}
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else if (p->ai_family == AF_INET6)
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{
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// ipv6
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// TODO: modify class to be able to handle IPv6
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// struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)p->ai_addr;
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// convert the IP to a string
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// inet_ntop(p->ai_family, addr, ipstr, sizeof(ipstr));
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// memcpy( &_SockAddr->sin_addr, &ipv6->sin_addr, sizeof(in_addr) );
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}
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// process next address
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p = p->ai_next;
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}
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// free the linked list
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freeaddrinfo(res);
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if(vect.empty())
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{
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throw ESocket( (string("No network card detected for ")+string(localhost)).c_str() );
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