public static unsafe uint Ipv6StringToAddress(string ipString, byte[] bytes, out uint scope)
{
Debug.Assert(ipString != null);
Debug.Assert(bytes != null);
Debug.Assert(bytes.Length == IPAddressParser.IPv6AddressBytes);
string host, port;
if (!TryPreprocessIPv6Address(ipString, out host, out port))
{
scope = 0;
return(unchecked ((uint)Interop.libc.EAI_NONAME));
}
var hints = new Interop.libc.addrinfo {
ai_flags = Interop.libc.AI_NUMERICHOST | Interop.libc.AI_NUMERICSERV,
ai_family = Interop.libc.AF_INET6,
ai_socktype = 0,
ai_protocol = 0
};
Interop.libc.addrinfo *addrinfo = null;
int err = Interop.libc.getaddrinfo(host, port, &hints, &addrinfo);
if (err != 0)
{
Debug.Assert(addrinfo == null);
scope = 0;
return(unchecked ((uint)err));
}
Debug.Assert(addrinfo != null);
Debug.Assert(addrinfo->ai_addr != null);
Debug.Assert(addrinfo->ai_addr->sa_family == Interop.libc.AF_INET6);
Interop.libc.sockaddr_in6 *sockaddr = (Interop.libc.sockaddr_in6 *)addrinfo->ai_addr;
Debug.Assert(sizeof(Interop.libc.in6_addr) == IPAddressParser.IPv6AddressBytes);
for (int i = 0; i < IPAddressParser.IPv6AddressBytes; i++)
{
bytes[i] = sockaddr->sin6_addr.s6_addr[i];
}
scope = sockaddr->sin6_scope_id;
Interop.libc.freeaddrinfo(addrinfo);
Debug.Assert(err == 0);
return(0);
}
public static unsafe uint Ipv4StringToAddress(string ipString, byte[] bytes, out ushort port)
{
Debug.Assert(ipString != null);
Debug.Assert(bytes != null);
Debug.Assert(bytes.Length == IPAddressParser.IPv4AddressBytes);
port = 0;
var hints = new Interop.libc.addrinfo {
ai_flags = Interop.libc.AI_NUMERICHOST | Interop.libc.AI_NUMERICSERV,
ai_family = Interop.libc.AF_INET,
ai_socktype = 0,
ai_protocol = 0
};
Interop.libc.addrinfo *addrinfo = null;
int err = Interop.libc.getaddrinfo(ipString, null, &hints, &addrinfo);
if (err != 0)
{
Debug.Assert(addrinfo == null);
return(unchecked ((uint)err));
}
Debug.Assert(addrinfo != null);
Debug.Assert(addrinfo->ai_addr != null);
Debug.Assert(addrinfo->ai_addr->sa_family == Interop.libc.AF_INET);
Interop.libc.sockaddr_in *sockaddr = (Interop.libc.sockaddr_in *)addrinfo->ai_addr;
sockaddr->sin_addr.s_addr.NetworkToNetworkBytes(bytes, 0);
port = sockaddr->sin_port;
Interop.libc.freeaddrinfo(addrinfo);
Debug.Assert(err == 0);
return(0);
}
public static unsafe uint Ipv4StringToAddress(string ipString, byte[] bytes, out ushort port)
{
Debug.Assert(ipString != null);
Debug.Assert(bytes != null);
Debug.Assert(bytes.Length == IPAddressParser.IPv4AddressBytes);
port = 0;
var hints = new Interop.libc.addrinfo {
ai_flags = Interop.libc.AI_NUMERICHOST | Interop.libc.AI_NUMERICSERV,
ai_family = Interop.libc.AF_INET,
ai_socktype = 0,
ai_protocol = 0
};
Interop.libc.addrinfo* addrinfo = null;
int err = Interop.libc.getaddrinfo(ipString, null, &hints, &addrinfo);
if (err != 0)
{
Debug.Assert(addrinfo == null);
return unchecked((uint)err);
}
Debug.Assert(addrinfo != null);
Debug.Assert(addrinfo->ai_addr != null);
Debug.Assert(addrinfo->ai_addr->sa_family == Interop.libc.AF_INET);
Interop.libc.sockaddr_in* sockaddr = (Interop.libc.sockaddr_in*)addrinfo->ai_addr;
sockaddr->sin_addr.s_addr.NetworkToNetworkBytes(bytes, 0);
port = sockaddr->sin_port;
Interop.libc.freeaddrinfo(addrinfo);
Debug.Assert(err == 0);
return 0;
}
public static unsafe uint Ipv6StringToAddress(string ipString, byte[] bytes, out uint scope)
{
Debug.Assert(ipString != null);
Debug.Assert(bytes != null);
Debug.Assert(bytes.Length == IPAddressParser.IPv6AddressBytes);
string host, port;
if (!TryPreprocessIPv6Address(ipString, out host, out port))
{
scope = 0;
return unchecked((uint)Interop.libc.EAI_NONAME);
}
var hints = new Interop.libc.addrinfo {
ai_flags = Interop.libc.AI_NUMERICHOST | Interop.libc.AI_NUMERICSERV,
ai_family = Interop.libc.AF_INET6,
ai_socktype = 0,
ai_protocol = 0
};
Interop.libc.addrinfo* addrinfo = null;
int err = Interop.libc.getaddrinfo(host, port, &hints, &addrinfo);
if (err != 0)
{
Debug.Assert(addrinfo == null);
scope = 0;
return unchecked((uint)err);
}
Debug.Assert(addrinfo != null);
Debug.Assert(addrinfo->ai_addr != null);
Debug.Assert(addrinfo->ai_addr->sa_family == Interop.libc.AF_INET6);
Interop.libc.sockaddr_in6* sockaddr = (Interop.libc.sockaddr_in6*)addrinfo->ai_addr;
Debug.Assert(sizeof(Interop.libc.in6_addr) == IPAddressParser.IPv6AddressBytes);
for (int i = 0; i < IPAddressParser.IPv6AddressBytes; i++)
{
bytes[i] = sockaddr->sin6_addr.s6_addr[i];
}
scope = sockaddr->sin6_scope_id;
Interop.libc.freeaddrinfo(addrinfo);
Debug.Assert(err == 0);
return 0;
}
public static unsafe SocketError TryGetAddrInfo(string name, out IPHostEntry hostinfo, out int nativeErrorCode)
{
var hints = new Interop.libc.addrinfo
{
ai_family = Interop.libc.AF_UNSPEC, // Get all address families
ai_flags = Interop.libc.AI_CANONNAME
};
Interop.libc.addrinfo *addrinfo = null;
string canonicalName = null;
IPAddress[] ipAddresses;
try
{
int errorCode = Interop.libc.getaddrinfo(name, null, &hints, &addrinfo);
if (errorCode != 0)
{
hostinfo = NameResolutionUtilities.GetUnresolvedAnswer(name);
nativeErrorCode = errorCode;
return(GetSocketErrorForNativeError(errorCode));
}
int numAddresses = 0;
for (Interop.libc.addrinfo *ai = addrinfo; ai != null; ai = ai->ai_next)
{
if (canonicalName == null && ai->ai_canonname != null)
{
canonicalName = Marshal.PtrToStringAnsi((IntPtr)ai->ai_canonname);
}
if ((ai->ai_family != Interop.libc.AF_INET) &&
(ai->ai_family != Interop.libc.AF_INET6 || !SocketProtocolSupportPal.OSSupportsIPv6))
{
continue;
}
numAddresses++;
}
if (numAddresses == 0)
{
ipAddresses = Array.Empty <IPAddress>();
}
else
{
ipAddresses = new IPAddress[numAddresses];
Interop.libc.addrinfo *ai = addrinfo;
for (int i = 0; i < numAddresses; ai = ai->ai_next)
{
Debug.Assert(ai != null);
if ((ai->ai_family != Interop.libc.AF_INET) &&
(ai->ai_family != Interop.libc.AF_INET6 || !SocketProtocolSupportPal.OSSupportsIPv6))
{
continue;
}
var sockaddr = new SocketAddress(
ai->ai_family == Interop.libc.AF_INET ? AddressFamily.InterNetwork : AddressFamily.InterNetworkV6,
checked ((int)ai->ai_addrlen));
for (int d = 0; d < ai->ai_addrlen; d++)
{
sockaddr[d] = ((byte *)ai->ai_addr)[d];
}
if (ai->ai_family == Interop.libc.AF_INET)
{
ipAddresses[i] = ((IPEndPoint)IPEndPointStatics.Any.Create(sockaddr)).Address;
}
else
{
ipAddresses[i] = ((IPEndPoint)IPEndPointStatics.IPv6Any.Create(sockaddr)).Address;
}
i++;
}
}
}
finally
{
if (addrinfo != null)
{
Interop.libc.freeaddrinfo(addrinfo);
}
}
hostinfo = new IPHostEntry
{
HostName = canonicalName ?? name,
Aliases = Array.Empty <string>(),
AddressList = ipAddresses
};
nativeErrorCode = 0;
return(SocketError.Success);
}
public static unsafe SocketError TryGetAddrInfo(string name, out IPHostEntry hostinfo, out int nativeErrorCode)
{
var hints = new Interop.libc.addrinfo
{
ai_family = Interop.libc.AF_UNSPEC, // Get all address families
ai_flags = Interop.libc.AI_CANONNAME
};
Interop.libc.addrinfo* addrinfo = null;
string canonicalName = null;
IPAddress[] ipAddresses;
try
{
int errorCode = Interop.libc.getaddrinfo(name, null, &hints, &addrinfo);
if (errorCode != 0)
{
hostinfo = NameResolutionUtilities.GetUnresolvedAnswer(name);
nativeErrorCode = errorCode;
return GetSocketErrorForNativeError(errorCode);
}
int numAddresses = 0;
for (Interop.libc.addrinfo* ai = addrinfo; ai != null; ai = ai->ai_next)
{
if (canonicalName == null && ai->ai_canonname != null)
{
canonicalName = Marshal.PtrToStringAnsi((IntPtr)ai->ai_canonname);
}
if ((ai->ai_family != Interop.libc.AF_INET) &&
(ai->ai_family != Interop.libc.AF_INET6 || !SocketProtocolSupportPal.OSSupportsIPv6))
{
continue;
}
numAddresses++;
}
if (numAddresses == 0)
{
ipAddresses = Array.Empty<IPAddress>();
}
else
{
ipAddresses = new IPAddress[numAddresses];
Interop.libc.addrinfo* ai = addrinfo;
for (int i = 0; i < numAddresses; ai = ai->ai_next)
{
Debug.Assert(ai != null);
if ((ai->ai_family != Interop.libc.AF_INET) &&
(ai->ai_family != Interop.libc.AF_INET6 || !SocketProtocolSupportPal.OSSupportsIPv6))
{
continue;
}
var sockaddr = new SocketAddress(
ai->ai_family == Interop.libc.AF_INET ? AddressFamily.InterNetwork : AddressFamily.InterNetworkV6,
checked((int)ai->ai_addrlen));
for (int d = 0; d < ai->ai_addrlen; d++)
{
sockaddr[d] = ((byte*)ai->ai_addr)[d];
}
if (ai->ai_family == Interop.libc.AF_INET)
{
ipAddresses[i] = ((IPEndPoint)IPEndPointStatics.Any.Create(sockaddr)).Address;
}
else
{
ipAddresses[i] = ((IPEndPoint)IPEndPointStatics.IPv6Any.Create(sockaddr)).Address;
}
i++;
}
}
}
finally
{
if (addrinfo != null)
{
Interop.libc.freeaddrinfo(addrinfo);
}
}
hostinfo = new IPHostEntry
{
HostName = canonicalName ?? name,
Aliases = Array.Empty<string>(),
AddressList = ipAddresses
};
nativeErrorCode = 0;
return SocketError.Success;
}
