move cryptopp into lib
This commit is contained in:
Alexander Harkness
531
lib/cryptopp/socketft.cpp
Normal file
531
lib/cryptopp/socketft.cpp
Normal file
@@ -0,0 +1,531 @@
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// socketft.cpp - written and placed in the public domain by Wei Dai
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#include "pch.h"
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#include "socketft.h"
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#ifdef SOCKETS_AVAILABLE
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#include "wait.h"
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#ifdef USE_BERKELEY_STYLE_SOCKETS
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#include <errno.h>
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#include <netdb.h>
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#include <unistd.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <sys/ioctl.h>
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#endif
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NAMESPACE_BEGIN(CryptoPP)
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#ifdef USE_WINDOWS_STYLE_SOCKETS
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const int SOCKET_EINVAL = WSAEINVAL;
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const int SOCKET_EWOULDBLOCK = WSAEWOULDBLOCK;
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typedef int socklen_t;
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#else
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const int SOCKET_EINVAL = EINVAL;
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const int SOCKET_EWOULDBLOCK = EWOULDBLOCK;
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#endif
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Socket::Err::Err(socket_t s, const std::string& operation, int error)
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: OS_Error(IO_ERROR, "Socket: " + operation + " operation failed with error " + IntToString(error), operation, error)
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, m_s(s)
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{
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}
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Socket::~Socket()
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{
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if (m_own)
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{
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try
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{
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CloseSocket();
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}
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catch (...)
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{
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}
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}
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}
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void Socket::AttachSocket(socket_t s, bool own)
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{
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if (m_own)
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CloseSocket();
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m_s = s;
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m_own = own;
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SocketChanged();
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}
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socket_t Socket::DetachSocket()
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{
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socket_t s = m_s;
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m_s = INVALID_SOCKET;
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SocketChanged();
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return s;
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}
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void Socket::Create(int nType)
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{
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assert(m_s == INVALID_SOCKET);
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m_s = socket(AF_INET, nType, 0);
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CheckAndHandleError("socket", m_s);
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m_own = true;
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SocketChanged();
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}
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void Socket::CloseSocket()
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{
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if (m_s != INVALID_SOCKET)
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{
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#ifdef USE_WINDOWS_STYLE_SOCKETS
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CancelIo((HANDLE) m_s);
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CheckAndHandleError_int("closesocket", closesocket(m_s));
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#else
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CheckAndHandleError_int("close", close(m_s));
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#endif
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m_s = INVALID_SOCKET;
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SocketChanged();
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}
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}
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void Socket::Bind(unsigned int port, const char *addr)
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{
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sockaddr_in sa;
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memset(&sa, 0, sizeof(sa));
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sa.sin_family = AF_INET;
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if (addr == NULL)
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sa.sin_addr.s_addr = htonl(INADDR_ANY);
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else
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{
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unsigned long result = inet_addr(addr);
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if (result == -1) // Solaris doesn't have INADDR_NONE
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{
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SetLastError(SOCKET_EINVAL);
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CheckAndHandleError_int("inet_addr", SOCKET_ERROR);
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}
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sa.sin_addr.s_addr = result;
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}
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sa.sin_port = htons((u_short)port);
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Bind((sockaddr *)&sa, sizeof(sa));
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}
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void Socket::Bind(const sockaddr *psa, socklen_t saLen)
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{
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assert(m_s != INVALID_SOCKET);
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// cygwin workaround: needs const_cast
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CheckAndHandleError_int("bind", bind(m_s, const_cast<sockaddr *>(psa), saLen));
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}
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void Socket::Listen(int backlog)
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{
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assert(m_s != INVALID_SOCKET);
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CheckAndHandleError_int("listen", listen(m_s, backlog));
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}
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bool Socket::Connect(const char *addr, unsigned int port)
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{
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assert(addr != NULL);
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sockaddr_in sa;
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memset(&sa, 0, sizeof(sa));
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sa.sin_family = AF_INET;
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sa.sin_addr.s_addr = inet_addr(addr);
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if (sa.sin_addr.s_addr == -1) // Solaris doesn't have INADDR_NONE
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{
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hostent *lphost = gethostbyname(addr);
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if (lphost == NULL)
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{
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SetLastError(SOCKET_EINVAL);
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CheckAndHandleError_int("gethostbyname", SOCKET_ERROR);
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}
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sa.sin_addr.s_addr = ((in_addr *)lphost->h_addr)->s_addr;
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}
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sa.sin_port = htons((u_short)port);
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return Connect((const sockaddr *)&sa, sizeof(sa));
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}
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bool Socket::Connect(const sockaddr* psa, socklen_t saLen)
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{
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assert(m_s != INVALID_SOCKET);
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int result = connect(m_s, const_cast<sockaddr*>(psa), saLen);
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if (result == SOCKET_ERROR && GetLastError() == SOCKET_EWOULDBLOCK)
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return false;
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CheckAndHandleError_int("connect", result);
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return true;
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}
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bool Socket::Accept(Socket& target, sockaddr *psa, socklen_t *psaLen)
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{
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assert(m_s != INVALID_SOCKET);
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socket_t s = accept(m_s, psa, psaLen);
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if (s == INVALID_SOCKET && GetLastError() == SOCKET_EWOULDBLOCK)
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return false;
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CheckAndHandleError("accept", s);
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target.AttachSocket(s, true);
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return true;
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}
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void Socket::GetSockName(sockaddr *psa, socklen_t *psaLen)
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{
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assert(m_s != INVALID_SOCKET);
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CheckAndHandleError_int("getsockname", getsockname(m_s, psa, psaLen));
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}
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void Socket::GetPeerName(sockaddr *psa, socklen_t *psaLen)
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{
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assert(m_s != INVALID_SOCKET);
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CheckAndHandleError_int("getpeername", getpeername(m_s, psa, psaLen));
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}
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unsigned int Socket::Send(const byte* buf, size_t bufLen, int flags)
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{
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assert(m_s != INVALID_SOCKET);
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int result = send(m_s, (const char *)buf, UnsignedMin(INT_MAX, bufLen), flags);
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CheckAndHandleError_int("send", result);
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return result;
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}
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unsigned int Socket::Receive(byte* buf, size_t bufLen, int flags)
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{
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assert(m_s != INVALID_SOCKET);
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int result = recv(m_s, (char *)buf, UnsignedMin(INT_MAX, bufLen), flags);
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CheckAndHandleError_int("recv", result);
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return result;
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}
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void Socket::ShutDown(int how)
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{
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assert(m_s != INVALID_SOCKET);
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int result = shutdown(m_s, how);
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CheckAndHandleError_int("shutdown", result);
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}
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void Socket::IOCtl(long cmd, unsigned long *argp)
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{
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assert(m_s != INVALID_SOCKET);
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#ifdef USE_WINDOWS_STYLE_SOCKETS
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CheckAndHandleError_int("ioctlsocket", ioctlsocket(m_s, cmd, argp));
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#else
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CheckAndHandleError_int("ioctl", ioctl(m_s, cmd, argp));
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#endif
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}
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bool Socket::SendReady(const timeval *timeout)
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{
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fd_set fds;
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FD_ZERO(&fds);
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FD_SET(m_s, &fds);
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int ready;
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if (timeout == NULL)
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ready = select((int)m_s+1, NULL, &fds, NULL, NULL);
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else
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{
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timeval timeoutCopy = *timeout; // select() modified timeout on Linux
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ready = select((int)m_s+1, NULL, &fds, NULL, &timeoutCopy);
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}
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CheckAndHandleError_int("select", ready);
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return ready > 0;
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}
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bool Socket::ReceiveReady(const timeval *timeout)
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{
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fd_set fds;
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FD_ZERO(&fds);
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FD_SET(m_s, &fds);
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int ready;
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if (timeout == NULL)
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ready = select((int)m_s+1, &fds, NULL, NULL, NULL);
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else
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{
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timeval timeoutCopy = *timeout; // select() modified timeout on Linux
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ready = select((int)m_s+1, &fds, NULL, NULL, &timeoutCopy);
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}
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CheckAndHandleError_int("select", ready);
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return ready > 0;
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}
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unsigned int Socket::PortNameToNumber(const char *name, const char *protocol)
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{
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int port = atoi(name);
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if (IntToString(port) == name)
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return port;
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servent *se = getservbyname(name, protocol);
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if (!se)
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throw Err(INVALID_SOCKET, "getservbyname", SOCKET_EINVAL);
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return ntohs(se->s_port);
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}
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void Socket::StartSockets()
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{
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#ifdef USE_WINDOWS_STYLE_SOCKETS
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WSADATA wsd;
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int result = WSAStartup(0x0202, &wsd);
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if (result != 0)
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throw Err(INVALID_SOCKET, "WSAStartup", result);
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#endif
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}
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void Socket::ShutdownSockets()
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{
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#ifdef USE_WINDOWS_STYLE_SOCKETS
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int result = WSACleanup();
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if (result != 0)
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throw Err(INVALID_SOCKET, "WSACleanup", result);
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#endif
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}
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int Socket::GetLastError()
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{
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#ifdef USE_WINDOWS_STYLE_SOCKETS
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return WSAGetLastError();
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#else
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return errno;
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#endif
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}
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void Socket::SetLastError(int errorCode)
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{
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#ifdef USE_WINDOWS_STYLE_SOCKETS
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WSASetLastError(errorCode);
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#else
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errno = errorCode;
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#endif
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}
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void Socket::HandleError(const char *operation) const
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{
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int err = GetLastError();
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throw Err(m_s, operation, err);
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}
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#ifdef USE_WINDOWS_STYLE_SOCKETS
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SocketReceiver::SocketReceiver(Socket &s)
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: m_s(s), m_resultPending(false), m_eofReceived(false)
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{
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m_event.AttachHandle(CreateEvent(NULL, true, false, NULL), true);
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m_s.CheckAndHandleError("CreateEvent", m_event.HandleValid());
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memset(&m_overlapped, 0, sizeof(m_overlapped));
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m_overlapped.hEvent = m_event;
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}
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SocketReceiver::~SocketReceiver()
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{
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#ifdef USE_WINDOWS_STYLE_SOCKETS
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CancelIo((HANDLE) m_s.GetSocket());
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#endif
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}
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bool SocketReceiver::Receive(byte* buf, size_t bufLen)
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{
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assert(!m_resultPending && !m_eofReceived);
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DWORD flags = 0;
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// don't queue too much at once, or we might use up non-paged memory
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WSABUF wsabuf = {UnsignedMin((u_long)128*1024, bufLen), (char *)buf};
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if (WSARecv(m_s, &wsabuf, 1, &m_lastResult, &flags, &m_overlapped, NULL) == 0)
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{
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if (m_lastResult == 0)
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m_eofReceived = true;
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}
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else
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{
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switch (WSAGetLastError())
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{
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default:
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m_s.CheckAndHandleError_int("WSARecv", SOCKET_ERROR);
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case WSAEDISCON:
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m_lastResult = 0;
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m_eofReceived = true;
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break;
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case WSA_IO_PENDING:
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m_resultPending = true;
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}
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}
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return !m_resultPending;
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}
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void SocketReceiver::GetWaitObjects(WaitObjectContainer &container, CallStack const& callStack)
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{
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if (m_resultPending)
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container.AddHandle(m_event, CallStack("SocketReceiver::GetWaitObjects() - result pending", &callStack));
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else if (!m_eofReceived)
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container.SetNoWait(CallStack("SocketReceiver::GetWaitObjects() - result ready", &callStack));
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}
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unsigned int SocketReceiver::GetReceiveResult()
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{
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if (m_resultPending)
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{
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DWORD flags = 0;
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if (WSAGetOverlappedResult(m_s, &m_overlapped, &m_lastResult, false, &flags))
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{
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if (m_lastResult == 0)
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m_eofReceived = true;
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}
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else
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{
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switch (WSAGetLastError())
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{
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default:
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m_s.CheckAndHandleError("WSAGetOverlappedResult", FALSE);
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case WSAEDISCON:
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m_lastResult = 0;
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m_eofReceived = true;
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}
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}
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m_resultPending = false;
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}
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return m_lastResult;
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}
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// *************************************************************
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SocketSender::SocketSender(Socket &s)
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: m_s(s), m_resultPending(false), m_lastResult(0)
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{
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m_event.AttachHandle(CreateEvent(NULL, true, false, NULL), true);
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m_s.CheckAndHandleError("CreateEvent", m_event.HandleValid());
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memset(&m_overlapped, 0, sizeof(m_overlapped));
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m_overlapped.hEvent = m_event;
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}
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|
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SocketSender::~SocketSender()
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{
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#ifdef USE_WINDOWS_STYLE_SOCKETS
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CancelIo((HANDLE) m_s.GetSocket());
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#endif
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}
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void SocketSender::Send(const byte* buf, size_t bufLen)
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{
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assert(!m_resultPending);
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DWORD written = 0;
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||||
// don't queue too much at once, or we might use up non-paged memory
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WSABUF wsabuf = {UnsignedMin((u_long)128*1024, bufLen), (char *)buf};
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if (WSASend(m_s, &wsabuf, 1, &written, 0, &m_overlapped, NULL) == 0)
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||||
{
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||||
m_resultPending = false;
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m_lastResult = written;
|
||||
}
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||||
else
|
||||
{
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||||
if (WSAGetLastError() != WSA_IO_PENDING)
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||||
m_s.CheckAndHandleError_int("WSASend", SOCKET_ERROR);
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||||
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||||
m_resultPending = true;
|
||||
}
|
||||
}
|
||||
|
||||
void SocketSender::SendEof()
|
||||
{
|
||||
assert(!m_resultPending);
|
||||
m_s.ShutDown(SD_SEND);
|
||||
m_s.CheckAndHandleError("ResetEvent", ResetEvent(m_event));
|
||||
m_s.CheckAndHandleError_int("WSAEventSelect", WSAEventSelect(m_s, m_event, FD_CLOSE));
|
||||
m_resultPending = true;
|
||||
}
|
||||
|
||||
bool SocketSender::EofSent()
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||||
{
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||||
if (m_resultPending)
|
||||
{
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||||
WSANETWORKEVENTS events;
|
||||
m_s.CheckAndHandleError_int("WSAEnumNetworkEvents", WSAEnumNetworkEvents(m_s, m_event, &events));
|
||||
if ((events.lNetworkEvents & FD_CLOSE) != FD_CLOSE)
|
||||
throw Socket::Err(m_s, "WSAEnumNetworkEvents (FD_CLOSE not present)", E_FAIL);
|
||||
if (events.iErrorCode[FD_CLOSE_BIT] != 0)
|
||||
throw Socket::Err(m_s, "FD_CLOSE (via WSAEnumNetworkEvents)", events.iErrorCode[FD_CLOSE_BIT]);
|
||||
m_resultPending = false;
|
||||
}
|
||||
return m_lastResult != 0;
|
||||
}
|
||||
|
||||
void SocketSender::GetWaitObjects(WaitObjectContainer &container, CallStack const& callStack)
|
||||
{
|
||||
if (m_resultPending)
|
||||
container.AddHandle(m_event, CallStack("SocketSender::GetWaitObjects() - result pending", &callStack));
|
||||
else
|
||||
container.SetNoWait(CallStack("SocketSender::GetWaitObjects() - result ready", &callStack));
|
||||
}
|
||||
|
||||
unsigned int SocketSender::GetSendResult()
|
||||
{
|
||||
if (m_resultPending)
|
||||
{
|
||||
DWORD flags = 0;
|
||||
BOOL result = WSAGetOverlappedResult(m_s, &m_overlapped, &m_lastResult, false, &flags);
|
||||
m_s.CheckAndHandleError("WSAGetOverlappedResult", result);
|
||||
m_resultPending = false;
|
||||
}
|
||||
return m_lastResult;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#ifdef USE_BERKELEY_STYLE_SOCKETS
|
||||
|
||||
SocketReceiver::SocketReceiver(Socket &s)
|
||||
: m_s(s), m_lastResult(0), m_eofReceived(false)
|
||||
{
|
||||
}
|
||||
|
||||
void SocketReceiver::GetWaitObjects(WaitObjectContainer &container, CallStack const& callStack)
|
||||
{
|
||||
if (!m_eofReceived)
|
||||
container.AddReadFd(m_s, CallStack("SocketReceiver::GetWaitObjects()", &callStack));
|
||||
}
|
||||
|
||||
bool SocketReceiver::Receive(byte* buf, size_t bufLen)
|
||||
{
|
||||
m_lastResult = m_s.Receive(buf, bufLen);
|
||||
if (bufLen > 0 && m_lastResult == 0)
|
||||
m_eofReceived = true;
|
||||
return true;
|
||||
}
|
||||
|
||||
unsigned int SocketReceiver::GetReceiveResult()
|
||||
{
|
||||
return m_lastResult;
|
||||
}
|
||||
|
||||
SocketSender::SocketSender(Socket &s)
|
||||
: m_s(s), m_lastResult(0)
|
||||
{
|
||||
}
|
||||
|
||||
void SocketSender::Send(const byte* buf, size_t bufLen)
|
||||
{
|
||||
m_lastResult = m_s.Send(buf, bufLen);
|
||||
}
|
||||
|
||||
void SocketSender::SendEof()
|
||||
{
|
||||
m_s.ShutDown(SD_SEND);
|
||||
}
|
||||
|
||||
unsigned int SocketSender::GetSendResult()
|
||||
{
|
||||
return m_lastResult;
|
||||
}
|
||||
|
||||
void SocketSender::GetWaitObjects(WaitObjectContainer &container, CallStack const& callStack)
|
||||
{
|
||||
container.AddWriteFd(m_s, CallStack("SocketSender::GetWaitObjects()", &callStack));
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
NAMESPACE_END
|
||||
|
||||
#endif // #ifdef SOCKETS_AVAILABLE
|
||||
Reference in New Issue
Block a user