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Csocket.cpp
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/** @file
*
* Copyright (c) 1999-2009 Jim Hull <imaginos@imaginos.net>
* All rights reserved
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
* Redistributions in any form must be accompanied by information on how to obtain
* complete source code for this software and any accompanying software that uses this software.
* The source code must either be included in the distribution or be available for no more than
* the cost of distribution plus a nominal fee, and must be freely redistributable
* under reasonable conditions. For an executable file, complete source code means the source
* code for all modules it contains. It does not include source code for modules or files
* that typically accompany the major components of the operating system on which the executable file runs.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
* OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OF THIS SOFTWARE BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
*/
#include "Csocket.h"
#ifdef __NetBSD__
#include <sys/param.h>
#endif /* __NetBSD__ */
#ifdef HAVE_LIBSSL
#include <openssl/conf.h>
#include <openssl/engine.h>
#endif /* HAVE_LIBSSL */
#include <list>
#define CS_SRANDBUFFER 128
using namespace std;
#define CREATE_ARES_VER( a, b, c ) ((a<<16)|(b<<8)|c)
#ifndef _NO_CSOCKET_NS // some people may not want to use a namespace
namespace Csocket
{
#endif /* _NO_CSOCKET_NS */
static int g_iCsockSSLIdx = 0; //!< this get setup once in InitSSL
int GetCsockClassIdx()
{
return( g_iCsockSSLIdx );
}
#ifdef _WIN32
static const char *inet_ntop(int af, const void *src, char *dst, socklen_t cnt)
{
if( af == AF_INET )
{
struct sockaddr_in in;
memset(&in, 0, sizeof(in));
in.sin_family = AF_INET;
memcpy( &in.sin_addr, src, sizeof(struct in_addr) );
getnameinfo( (struct sockaddr *)&in, sizeof(struct sockaddr_in), dst, cnt, NULL, 0, NI_NUMERICHOST );
return dst;
}
else if( af == AF_INET6 )
{
struct sockaddr_in6 in;
memset( &in, 0, sizeof(in) );
in.sin6_family = AF_INET6;
memcpy( &in.sin6_addr, src, sizeof(struct in_addr6) );
getnameinfo( (struct sockaddr *)&in, sizeof(struct sockaddr_in6), dst, cnt, NULL, 0, NI_NUMERICHOST );
return dst;
}
return( NULL );
}
#if defined(_WIN32) && (!defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0600))
//! thanks to KiNgMaR @ #znc for this wrapper
static int inet_pton( int af, const char *src, void *dst )
{
sockaddr_storage aAddress;
int iAddrLen = sizeof( sockaddr_storage );
memset( &aAddress, 0, iAddrLen );
char *pTmp = strdup( src );
aAddress.ss_family = af; // this is important:
// The function fails if the sin_family member of the SOCKADDR_IN structure is not set to AF_INET or AF_INET6.
int iRet = WSAStringToAddressA( pTmp, af, NULL, (sockaddr *)&aAddress, &iAddrLen );
free( pTmp );
if( iRet == 0 )
{
if( af == AF_INET6 )
memcpy(dst, &((sockaddr_in6 *)&aAddress)->sin6_addr, sizeof(in6_addr));
else
memcpy(dst, &((sockaddr_in *)&aAddress)->sin_addr, sizeof(in_addr));
return( 1 );
}
return( -1 );
}
#endif
static inline void set_non_blocking(cs_sock_t fd)
{
u_long iOpts = 1;
ioctlsocket( fd, FIONBIO, &iOpts );
}
static inline void set_blocking(cs_sock_t fd)
{
u_long iOpts = 0;
ioctlsocket( fd, FIONBIO, &iOpts );
}
static inline void set_close_on_exec(cs_sock_t fd)
{
// TODO add this for windows
// see http://gcc.gnu.org/ml/java-patches/2002-q1/msg00696.html
// for infos on how to do this
}
#else
static inline void set_non_blocking(cs_sock_t fd)
{
int fdflags = fcntl(fd, F_GETFL, 0);
if ( fdflags < 0 )
return; // Ignore errors
fcntl( fd, F_SETFL, fdflags|O_NONBLOCK );
}
static inline void set_blocking(cs_sock_t fd)
{
int fdflags = fcntl(fd, F_GETFL, 0);
if ( fdflags < 0 )
return; // Ignore errors
fdflags &= ~O_NONBLOCK;
fcntl( fd, F_SETFL, fdflags );
}
static inline void set_close_on_exec(cs_sock_t fd)
{
int fdflags = fcntl(fd, F_GETFD, 0);
if ( fdflags < 0 )
return; // Ignore errors
fcntl( fd, F_SETFD, fdflags|FD_CLOEXEC);
}
#endif /* _WIN32 */
#ifdef HAVE_LIBSSL
Csock *GetCsockFromCTX( X509_STORE_CTX *pCTX )
{
Csock *pSock = NULL;
SSL *pSSL = (SSL *)X509_STORE_CTX_get_ex_data( pCTX, SSL_get_ex_data_X509_STORE_CTX_idx() );
if( pSSL )
pSock = (Csock *)SSL_get_ex_data( pSSL, GetCsockClassIdx() );
return( pSock );
}
#endif /* HAVE_LIBSSL */
#ifndef HAVE_IPV6
// this issue here is getaddrinfo has a significant behavior difference when dealing with round robin dns on an
// ipv4 network. This is not desirable IMHO. so when this is compiled without ipv6 support backwards compatibility
// is maintained.
static int __GetHostByName( const CS_STRING & sHostName, struct in_addr *paddr, u_int iNumRetries )
{
int iReturn = HOST_NOT_FOUND;
struct hostent *hent = NULL;
#ifdef __linux__
char hbuff[2048];
struct hostent hentbuff;
int err;
for( u_int a = 0; a < iNumRetries; a++ )
{
memset( (char *)hbuff, '\0', 2048 );
iReturn = gethostbyname_r( sHostName.c_str(), &hentbuff, hbuff, 2048, &hent, &err );
if ( iReturn == 0 )
break;
if ( iReturn != TRY_AGAIN )
{
CS_DEBUG( "gethostyname_r: " << hstrerror( h_errno ) );
break;
}
}
if ( ( !hent ) && ( iReturn == 0 ) )
iReturn = HOST_NOT_FOUND;
#else
for( u_int a = 0; a < iNumRetries; a++ )
{
iReturn = HOST_NOT_FOUND;
hent = gethostbyname( sHostName.c_str() );
if ( hent )
{
iReturn = 0;
break;
}
if( h_errno != TRY_AGAIN )
{
#ifndef _WIN32
CS_DEBUG( "gethostyname: " << hstrerror( h_errno ) );
#endif /* _WIN32 */
break;
}
}
#endif /* __linux__ */
if ( iReturn == 0 )
memcpy( &paddr->s_addr, hent->h_addr_list[0], sizeof( paddr->s_addr ) );
return( iReturn == TRY_AGAIN ? EAGAIN : iReturn );
}
#endif /* !HAVE_IPV6 */
#ifdef HAVE_C_ARES
void Csock::FreeAres()
{
if( m_pARESChannel )
{
ares_destroy( m_pARESChannel );
m_pARESChannel = NULL;
}
}
#endif /* HAVE_C_ARES */
#ifdef HAVE_C_ARES
static void AresHostCallback( void *pArg, int status, int timeouts, struct hostent *hent )
{
Csock *pSock = (Csock *)pArg;
if( status == ARES_SUCCESS && hent )
{
CSSockAddr *pSockAddr = pSock->GetCurrentAddr();
if( hent->h_addrtype == AF_INET )
{
pSock->SetIPv6( false );
memcpy( pSockAddr->GetAddr(), hent->h_addr_list[0], sizeof( *(pSockAddr->GetAddr()) ) );
}
#ifdef HAVE_IPV6
else if( hent->h_addrtype == AF_INET6 )
{
pSock->SetIPv6( true );
memcpy( pSockAddr->GetAddr6(), hent->h_addr_list[0], sizeof( *(pSockAddr->GetAddr6()) ) );
}
#endif /* HAVE_IPV6 */
else
{
status = ARES_ENOTFOUND;
}
}
else
{
CS_DEBUG( ares_strerror( status ) );
}
pSock->SetAresFinished( status );
}
#endif /* HAVE_C_ARES */
int GetAddrInfo( const CS_STRING & sHostname, Csock *pSock, CSSockAddr & csSockAddr )
{
#ifndef HAVE_IPV6
// if ipv6 is not enabled, then simply use gethostbyname, nothing special outside of this is done
if( pSock )
pSock->SetIPv6( false );
csSockAddr.SetIPv6( false );
if( __GetHostByName( sHostname, csSockAddr.GetAddr(), 3 ) == 0 )
return( 0 );
#else /* HAVE_IPV6 */
struct addrinfo *res = NULL;
struct addrinfo hints;
memset( (struct addrinfo *)&hints, '\0', sizeof( hints ) );
hints.ai_family = csSockAddr.GetAFRequire();
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
#ifdef AI_ADDRCONFIG
// this is suppose to eliminate host from appearing that this system can not support
hints.ai_flags = AI_ADDRCONFIG;
#endif /* AI_ADDRCONFIG */
if( pSock && ( pSock->GetType() == Csock::LISTENER || pSock->GetConState() == Csock::CST_BINDVHOST ) )
{ // when doing a dns for bind only, set the AI_PASSIVE flag as suggested by the man page
hints.ai_flags |= AI_PASSIVE;
}
int iRet = getaddrinfo( sHostname.c_str(), NULL, &hints, &res );
if( iRet == EAI_AGAIN )
return( EAGAIN ); // need to return telling the user to try again
else if( ( iRet == 0 ) && ( res ) )
{
std::list<struct addrinfo *> lpTryAddrs;
bool bFound = false;
for( struct addrinfo *pRes = res; pRes; pRes = pRes->ai_next )
{ // pass through the list building out a lean list of candidates to try. AI_CONFIGADDR doesn't always seem to work
#ifdef __sun
if( ( pRes->ai_socktype != SOCK_STREAM ) || ( pRes->ai_protocol != IPPROTO_TCP && pRes->ai_protocol != IPPROTO_IP ) )
#else
if( ( pRes->ai_socktype != SOCK_STREAM ) || ( pRes->ai_protocol != IPPROTO_TCP ) )
#endif /* __sun work around broken impl of getaddrinfo */
continue;
if( ( csSockAddr.GetAFRequire() != CSSockAddr::RAF_ANY ) && ( pRes->ai_family != csSockAddr.GetAFRequire() ) )
continue; // they requested a special type, so be certain we woop past anything unwanted
lpTryAddrs.push_back( pRes );
}
for( std::list<struct addrinfo *>::iterator it = lpTryAddrs.begin(); it != lpTryAddrs.end(); )
{ // cycle through these, leaving the last iterator for the outside caller to call, so if there is an error it can call the events
struct addrinfo * pRes = *it;
bool bTryConnect = false;
if( pRes->ai_family == AF_INET )
{
if( pSock )
pSock->SetIPv6( false );
csSockAddr.SetIPv6( false );
struct sockaddr_in *pTmp = (struct sockaddr_in *)pRes->ai_addr;
memcpy( csSockAddr.GetAddr(), &(pTmp->sin_addr), sizeof( *(csSockAddr.GetAddr()) ) );
if( pSock && pSock->GetConState() == Csock::CST_DESTDNS && pSock->GetType() == Csock::OUTBOUND )
{
bTryConnect = true;
}
else
{
bFound = true;
break;
}
}
else if( pRes->ai_family == AF_INET6 )
{
if( pSock )
pSock->SetIPv6( true );
csSockAddr.SetIPv6( true );
struct sockaddr_in6 *pTmp = (struct sockaddr_in6 *)pRes->ai_addr;
memcpy( csSockAddr.GetAddr6(), &(pTmp->sin6_addr), sizeof( *(csSockAddr.GetAddr6()) ) );
if( pSock && pSock->GetConState() == Csock::CST_DESTDNS && pSock->GetType() == Csock::OUTBOUND )
{
bTryConnect = true;
}
else
{
bFound = true;
break;
}
}
it++; // increment the iterator her so we know if its the last element or not
if( bTryConnect && it != lpTryAddrs.end() )
{ // save the last attempt for the outer loop, the issue then becomes that the error is thrown on the last failure
if( pSock->CreateSocksFD() && pSock->Connect( pSock->GetBindHost(), true ) )
{
pSock->SetSkipConnect( true ); // this tells the socket that the connection state has been started
bFound = true;
break;
}
pSock->CloseSocksFD();
}
else if( bTryConnect )
{
bFound = true;
}
}
freeaddrinfo( res );
if( bFound ) // the data pointed to here is invalid now, but the pointer itself is a good test
{
return( 0 );
}
}
#endif /* ! HAVE_IPV6 */
return( ETIMEDOUT );
}
bool InitCsocket()
{
#ifdef _WIN32
WSADATA wsaData;
int iResult = WSAStartup( MAKEWORD( 2, 2 ), &wsaData );
if( iResult != NO_ERROR )
return( false );
#endif /* _WIN32 */
#ifdef HAVE_C_ARES
#if ARES_VERSION >= CREATE_ARES_VER( 1, 6, 1 )
if( ares_library_init( ARES_LIB_INIT_ALL ) != 0 )
return( false );
#endif /* ARES_VERSION >= CREATE_ARES_VER( 1, 6, 1 ) */
#endif /* HAVE_C_ARES */
#ifdef HAVE_LIBSSL
if( !InitSSL() )
return( false );
#endif /* HAVE_LIBSSL */
return( true );
}
void ShutdownCsocket()
{
#ifdef HAVE_LIBSSL
ERR_remove_state(0);
ENGINE_cleanup();
CONF_modules_unload(1);
ERR_free_strings();
EVP_cleanup();
CRYPTO_cleanup_all_ex_data();
#endif /* HAVE_LIBSSL */
#ifdef HAVE_C_ARES
#if ARES_VERSION >= CREATE_ARES_VER( 1, 6, 1 )
ares_library_cleanup();
#endif /* ARES_VERSION >= CREATE_ARES_VER( 1, 6, 1 ) */
#endif /* HAVE_C_ARES */
#ifdef _WIN32
WSACleanup();
#endif /* _WIN32 */
}
#ifdef HAVE_LIBSSL
bool InitSSL( ECompType eCompressionType )
{
SSL_load_error_strings();
if ( SSL_library_init() != 1 )
{
CS_DEBUG( "SSL_library_init() failed!" );
return( false );
}
#ifndef _WIN32
if ( access( "/dev/urandom", R_OK ) == 0 )
RAND_load_file( "/dev/urandom", 1024 );
else if( access( "/dev/random", R_OK ) == 0 )
RAND_load_file( "/dev/random", 1024 );
else
{
CS_DEBUG( "Unable to locate entropy location! Tried /dev/urandom and /dev/random" );
return( false );
}
#endif /* _WIN32 */
COMP_METHOD *cm = NULL;
if ( CT_ZLIB & eCompressionType )
{
cm = COMP_zlib();
if ( cm )
SSL_COMP_add_compression_method( CT_ZLIB, cm );
}
if ( CT_RLE & eCompressionType )
{
cm = COMP_rle();
if ( cm )
SSL_COMP_add_compression_method( CT_RLE, cm );
}
// setting this up once in the begining
g_iCsockSSLIdx = SSL_get_ex_new_index( 0, (void *)"CsockGlobalIndex", NULL, NULL, NULL);
return( true );
}
void SSLErrors( const char *filename, u_int iLineNum )
{
unsigned long iSSLError = 0;
while( ( iSSLError = ERR_get_error() ) != 0 )
{
CS_DEBUG( "at " << filename << ":" << iLineNum );
char szError[512];
memset( (char *) szError, '\0', 512 );
ERR_error_string_n( iSSLError, szError, 511 );
if ( *szError )
CS_DEBUG( szError );
}
}
#endif /* HAVE_LIBSSL */
void __Perror( const CS_STRING & s, const char *pszFile, unsigned int iLineNo )
{
#if defined(__sun) || defined(_WIN32) || (defined(__NetBSD_Version__) && __NetBSD_Version__ < 4000000000)
std::cerr << s << "(" << pszFile << ":" << iLineNo << "): " << strerror( GetSockError() ) << endl;
#else
char buff[512];
memset( (char *)buff, '\0', 512 );
if ( strerror_r( GetSockError(), buff, 511 ) == 0 )
std::cerr << s << "(" << pszFile << ":" << iLineNo << "): " << buff << endl;
else
std::cerr << s << "(" << pszFile << ":" << iLineNo << "): Unknown Error Occured " << endl;
#endif /* __sun */
}
unsigned long long millitime()
{
unsigned long long iTime = 0;
#ifdef _WIN32
struct timeb tm;
ftime( &tm );
iTime = tm.time * 1000;
iTime += tm.millitm;
#else
struct timeval tv;
gettimeofday( &tv, NULL );
iTime = (unsigned long long )tv.tv_sec * 1000;
iTime += ( (unsigned long long)tv.tv_usec / 1000 );
#endif /* _WIN32 */
return( iTime );
}
#ifndef _NO_CSOCKET_NS // some people may not want to use a namespace
}
using namespace Csocket;
#endif /* _NO_CSOCKET_NS */
CCron::CCron()
{
m_iCycles = 0;
m_iMaxCycles = 0;
m_bActive = true;
m_iTime = 0;
m_iTimeSequence = 60;
m_bPause = false;
m_bRunOnNextCall = false;
}
void CCron::run( time_t & iNow )
{
if ( m_bPause )
return;
if( iNow == 0 )
iNow = time( NULL );
if ( ( m_bActive ) && ( iNow >= m_iTime || m_bRunOnNextCall ) )
{
m_bRunOnNextCall = false; // Setting this here because RunJob() could set it back to true
RunJob();
if ( ( m_iMaxCycles > 0 ) && ( ++m_iCycles >= m_iMaxCycles ) )
m_bActive = false;
else
m_iTime = iNow + m_iTimeSequence;
}
}
void CCron::StartMaxCycles( int TimeSequence, u_int iMaxCycles )
{
m_iTimeSequence = TimeSequence;
m_iTime = time( NULL ) + m_iTimeSequence;
m_iMaxCycles = iMaxCycles;
}
void CCron::Start( int TimeSequence )
{
m_iTimeSequence = TimeSequence;
m_iTime = time( NULL ) + m_iTimeSequence;
m_iMaxCycles = 0;
}
void CCron::Stop()
{
m_bActive = false;
}
void CCron::Pause()
{
m_bPause = true;
}
void CCron::UnPause()
{
m_bPause = false;
}
int CCron::GetInterval() const { return( m_iTimeSequence ); }
u_int CCron::GetMaxCycles() const { return( m_iMaxCycles ); }
u_int CCron::GetCyclesLeft() const { return( ( m_iMaxCycles > m_iCycles ? ( m_iMaxCycles - m_iCycles ) : 0 ) ); }
bool CCron::isValid() { return( m_bActive ); }
const CS_STRING & CCron::GetName() const { return( m_sName ); }
void CCron::SetName( const CS_STRING & sName ) { m_sName = sName; }
void CCron::RunJob() { CS_DEBUG( "This should be overridden" ); }
Csock::Csock( int itimeout )
{
#ifdef HAVE_LIBSSL
m_pCerVerifyCB = NULL;
#endif /* HAVE_LIBSSL */
Init( "", 0, itimeout );
}
Csock::Csock( const CS_STRING & sHostname, u_short iport, int itimeout )
{
#ifdef HAVE_LIBSSL
m_pCerVerifyCB = NULL;
#endif /* HAVE_LIBSSL */
Init( sHostname, iport, itimeout );
}
// override this for accept sockets
Csock *Csock::GetSockObj( const CS_STRING & sHostname, u_short iPort )
{
return( NULL );
}
#ifdef _WIN32
#define CS_CLOSE closesocket
#else
#define CS_CLOSE close
#endif /* _WIN32 */
Csock::~Csock()
{
#ifdef HAVE_C_ARES
if( m_pARESChannel )
ares_cancel( m_pARESChannel );
FreeAres();
#endif /* HAVE_C_ARES */
#ifdef HAVE_LIBSSL
FREE_SSL();
FREE_CTX();
#endif /* HAVE_LIBSSL */
CloseSocksFD();
// delete any left over crons
for( vector<CCron *>::size_type i = 0; i < m_vcCrons.size(); i++ )
CS_Delete( m_vcCrons[i] );
}
void Csock::CloseSocksFD()
{
if ( m_iReadSock != m_iWriteSock )
{
if( m_iReadSock != CS_INVALID_SOCK )
CS_CLOSE( m_iReadSock );
if( m_iWriteSock != CS_INVALID_SOCK )
CS_CLOSE( m_iWriteSock );
} else if( m_iReadSock != CS_INVALID_SOCK )
CS_CLOSE( m_iReadSock );
m_iReadSock = CS_INVALID_SOCK;
m_iWriteSock = CS_INVALID_SOCK;
}
void Csock::Dereference()
{
m_iWriteSock = m_iReadSock = CS_INVALID_SOCK;
#ifdef HAVE_LIBSSL
m_ssl = NULL;
m_ssl_ctx = NULL;
#endif /* HAVE_LIBSSL */
m_vcCrons.clear();
Close( CLT_DEREFERENCE );
}
void Csock::Copy( const Csock & cCopy )
{
m_iTcount = cCopy.m_iTcount;
m_iLastCheckTimeoutTime = cCopy.m_iLastCheckTimeoutTime;
m_uPort = cCopy.m_uPort;
m_iRemotePort = cCopy.m_iRemotePort;
m_iLocalPort = cCopy.m_iLocalPort;
m_iReadSock = cCopy.m_iReadSock;
m_iWriteSock = cCopy.m_iWriteSock;
m_itimeout = cCopy.m_itimeout;
m_iConnType = cCopy.m_iConnType;
m_iMethod = cCopy.m_iMethod;
m_bssl = cCopy.m_bssl;
m_bIsConnected = cCopy.m_bIsConnected;
m_bBLOCK = cCopy.m_bBLOCK;
m_bsslEstablished = cCopy.m_bsslEstablished;
m_bEnableReadLine = cCopy.m_bEnableReadLine;
m_bPauseRead = cCopy.m_bPauseRead;
m_shostname = cCopy.m_shostname;
m_sbuffer = cCopy.m_sbuffer;
m_sSockName = cCopy.m_sSockName;
m_sPemFile = cCopy.m_sPemFile;
m_sCipherType = cCopy.m_sCipherType;
m_sParentName = cCopy.m_sParentName;
m_sSend = cCopy.m_sSend;
m_sPemPass = cCopy.m_sPemPass;
m_sLocalIP = cCopy.m_sLocalIP;
m_sRemoteIP = cCopy.m_sRemoteIP;
m_eCloseType = cCopy.m_eCloseType;
m_iMaxMilliSeconds = cCopy.m_iMaxMilliSeconds;
m_iLastSendTime = cCopy.m_iLastSendTime;
m_iBytesRead = cCopy.m_iBytesRead;
m_iBytesWritten = cCopy.m_iBytesWritten;
m_iStartTime = cCopy.m_iStartTime;
m_iMaxBytes = cCopy.m_iMaxBytes;
m_iLastSend = cCopy.m_iLastSend;
m_iMaxStoredBufferLength = cCopy.m_iMaxStoredBufferLength;
m_iTimeoutType = cCopy.m_iTimeoutType;
m_address = cCopy.m_address;
m_bindhost = cCopy.m_bindhost;
m_bIsIPv6 = cCopy.m_bIsIPv6;
m_bSkipConnect = cCopy.m_bSkipConnect;
#ifdef HAVE_C_ARES
FreeAres(); // Not copying this state, but making sure its nulled out
m_iARESStatus = -1; // set it to unitialized
m_pCurrAddr = NULL;
#endif /* HAVE_C_ARES */
#ifdef HAVE_LIBSSL
m_iRequireClientCertFlags = cCopy.m_iRequireClientCertFlags;
m_sSSLBuffer = cCopy.m_sSSLBuffer;
FREE_SSL();
FREE_CTX(); // be sure to remove anything that was already here
m_ssl = cCopy.m_ssl;
m_ssl_ctx = cCopy.m_ssl_ctx;
m_pCerVerifyCB = cCopy.m_pCerVerifyCB;
#endif /* HAVE_LIBSSL */
if( !m_vcCrons.empty() )
{
for( u_long a = 0; a < m_vcCrons.size(); a++ )
{
CS_Delete( m_vcCrons[a] );
}
m_vcCrons.clear();
}
m_vcCrons = cCopy.m_vcCrons;
m_eConState = cCopy.m_eConState;
m_sBindHost = cCopy.m_sBindHost;
m_iCurBindCount = cCopy.m_iCurBindCount;
m_iDNSTryCount = cCopy.m_iDNSTryCount;
}
Csock & Csock::operator<<( const CS_STRING & s )
{
Write( s );
return( *this );
}
Csock & Csock::operator<<( ostream & ( *io )( ostream & ) )
{
Write( "\r\n" );
return( *this );
}
Csock & Csock::operator<<( int i )
{
stringstream s;
s << i;
Write( s.str() );
return( *this );
}
Csock & Csock::operator<<( unsigned int i )
{
stringstream s;
s << i;
Write( s.str() );
return( *this );
}
Csock & Csock::operator<<( long i )
{
stringstream s;
s << i;
Write( s.str() );
return( *this );
}
Csock & Csock::operator<<( unsigned long i )
{
stringstream s;
s << i;
Write( s.str() );
return( *this );
}
Csock & Csock::operator<<( unsigned long long i )
{
stringstream s;
s << i;
Write( s.str() );
return( *this );
}
Csock & Csock::operator<<( float i )
{
stringstream s;
s << i;
Write( s.str() );
return( *this );
}
Csock & Csock::operator<<( double i )
{
stringstream s;
s << i;
Write( s.str() );
return( *this );
}
bool Csock::Connect( const CS_STRING & sBindHost, bool bSkipSetup )
{
if( m_bSkipConnect )
{ // this was already called, so skipping now. this is to allow easy pass through
if ( m_eConState != CST_OK )
{
m_eConState = ( GetSSL() ? CST_CONNECTSSL : CST_OK );
}
return( true );
}
// bind to a hostname if requested
m_sBindHost = sBindHost;
if ( !bSkipSetup )
{
if ( !sBindHost.empty() )
{
// try to bind 3 times, otherwise exit failure
bool bBound = false;
for( int a = 0; a < 3 && !bBound; a++ )
{
if ( SetupVHost() )
bBound = true;
#ifdef _WIN32
Sleep( 5000 );
#else
usleep( 5000 ); // quick pause, common lets BIND!)(!*!
#endif /* _WIN32 */
}
if ( !bBound )
{
CS_DEBUG( "Failure to bind to " << sBindHost );
return( false );
}
}
int iDNSRet = ETIMEDOUT;
while( true )
{
iDNSRet = DNSLookup( DNS_VHOST );
if ( iDNSRet == EAGAIN )
continue;
break;
}
if ( iDNSRet != 0 )
return( false );
}
// set it none blocking
set_non_blocking( m_iReadSock );
m_iConnType = OUTBOUND;
int ret = -1;
if( !GetIPv6() )
ret = connect( m_iReadSock, (struct sockaddr *)m_address.GetSockAddr(), m_address.GetSockAddrLen() );
#ifdef HAVE_IPV6
else
ret = connect( m_iReadSock, (struct sockaddr *)m_address.GetSockAddr6(), m_address.GetSockAddrLen6() );
#endif /* HAVE_IPV6 */
#ifndef _WIN32
if ( ( ret == -1 ) && ( GetSockError() != EINPROGRESS ) )
#else
if ( ( ret == -1 ) && ( GetSockError() != EINPROGRESS ) && ( GetSockError() != WSAEWOULDBLOCK ) )
#endif /* _WIN32 */
{
CS_DEBUG( "Connect Failed. ERRNO [" << GetSockError() << "] FD [" << m_iReadSock << "]" );
return( false );
}
if ( m_bBLOCK )
{
set_blocking( m_iReadSock );
}
if ( m_eConState != CST_OK )
{
m_eConState = ( GetSSL() ? CST_CONNECTSSL : CST_OK );
}
return( true );
}
int Csock::WriteSelect()
{
if ( m_iWriteSock == CS_INVALID_SOCK )
return( SEL_ERR );
struct timeval tv;
fd_set wfds;
TFD_ZERO( &wfds );
TFD_SET( m_iWriteSock, &wfds );
tv.tv_sec = m_itimeout;
tv.tv_usec = 0;
int ret = select( FD_SETSIZE, NULL, &wfds, NULL, &tv );
if ( ret == 0 )
return( SEL_TIMEOUT );
if ( ret == -1 )
{
if ( GetSockError() == EINTR )
return( SEL_EAGAIN );
else
return( SEL_ERR );
}
return( SEL_OK );
}
int Csock::ReadSelect()
{
if ( m_iReadSock == CS_INVALID_SOCK )
return( SEL_ERR );
struct timeval tv;
fd_set rfds;
TFD_ZERO( &rfds );
TFD_SET( m_iReadSock, &rfds );
tv.tv_sec = m_itimeout;
tv.tv_usec = 0;
int ret = select( FD_SETSIZE, &rfds, NULL, NULL, &tv );
if ( ret == 0 )
return( SEL_TIMEOUT );
if ( ret == -1 )
{
if ( GetSockError() == EINTR )
return( SEL_EAGAIN );
else
return( SEL_ERR );
}
return( SEL_OK );
}
bool Csock::Listen( u_short iPort, int iMaxConns, const CS_STRING & sBindHost, u_int iTimeout )
{
m_iConnType = LISTENER;
m_itimeout = iTimeout;
m_sBindHost = sBindHost;
if ( !sBindHost.empty() )
{
// forcing this to block regardless of resolver overloading, because listen is not currently setup to
// to handle nonblocking operations. This is used to resolve local ip's for binding anyways and should be instant
if( ::GetAddrInfo( sBindHost, this, m_address ) != 0 )
return( false );
}
m_iReadSock = m_iWriteSock = CreateSocket( true );
if ( m_iReadSock == CS_INVALID_SOCK )
return( false );
#ifdef HAVE_IPV6
// there's no IPPROTO_IPV6 below Win XP. - KiNgMaR
#if (!defined(_WIN32) && defined(IPV6_V6ONLY)) || (defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0501)
if( GetIPv6() )
{
// per RFC3493#5.3
const int on = ( m_address.GetAFRequire() == CSSockAddr::RAF_INET6 ? 1 : 0 );
if( setsockopt( m_iReadSock, IPPROTO_IPV6, IPV6_V6ONLY, (char *)&on, sizeof( on ) ) != 0 )
PERROR( "IPV6_V6ONLY" );
}
#endif /* IPV6_V6ONLY */
#endif /* HAVE_IPV6 */
m_address.SinFamily();
m_address.SinPort( iPort );
if( !GetIPv6() )
{
if ( bind( m_iReadSock, (struct sockaddr *) m_address.GetSockAddr(), m_address.GetSockAddrLen() ) == -1 )
return( false );
}
#ifdef HAVE_IPV6
else
{
if ( bind( m_iReadSock, (struct sockaddr *) m_address.GetSockAddr6(), m_address.GetSockAddrLen6() ) == -1 )
return( false );