/***************************************************************************** # Copyright (C) 1994-2008 by David Gordon. # All rights reserved. # # This software is part of a beta-test version of the Consed/Autofinish # package. It should not be redistributed or # used for any commercial purpose, including commercially funded # sequencing, without written permission from the author and the # University of Washington. # # This software is provided ``AS IS'' and any express or implied # warranties, including, but not limited to, the implied warranties of # merchantability and fitness for a particular purpose, are disclaimed. # In no event shall the authors or the University of Washington 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. # # Building Consed from source is error prone and not simple which is # why I provide executables. Due to time limitations I cannot # provide any assistance in building Consed. Even if you do not # modify the source, you may introduce errors due to using a # different version of the compiler, a different version of motif, # different versions of other libraries than I used, etc. For this # reason, if you discover Consed bugs, I can only offer help with # those bugs if you first reproduce those bugs with an executable # provided by me--not an executable you have built. # # Modifying Consed is also difficult. Although Consed is modular, # some modules are used by many other modules. Thus making a change # in one place can have unforeseen effects on many other features. # It may takes months for you to notice these other side-effects # which may not seen connected at all. It is not feasable for me to # provide help with modifying Consed sources because of the # potentially huge amount of time involved. # #*****************************************************************************/ #include using namespace std; #include #include #include #include #include #include #include #include #include "guiapp.h" #include "mbt_exception.h" #define MAXLINE 512 #define MAX_NUMBER_OF_LOCAL_PORT_NUMBERS_TO_TRY 1000 int nCreateSocket( const int nLocalPortNumberToTryFirst, int& nLocalPortSuccessfullyUsed ) { int nSockFD; struct sockaddr_in serv_addr; if ( (nSockFD = socket( AF_INET, SOCK_STREAM, 0 )) < 0 ) { ostringstream ost; ost << "server: can't open stream socket" << ends; SysRequestFailed srf(ost.str().c_str()); throw srf; // throw exception } setsockopt( nSockFD, SOL_SOCKET, SO_REUSEADDR, "i", 1 ); /* * Bind our local address so that the client can send to us. */ memset( &serv_addr, 0, sizeof( serv_addr ) ); serv_addr.sin_family = AF_INET; serv_addr.sin_addr.s_addr = htonl( INADDR_ANY ); serv_addr.sin_port = htons( nLocalPortNumberToTryFirst ); nLocalPortSuccessfullyUsed = nLocalPortNumberToTryFirst; int nNumberOfTimesToTry = 0; bool bSuccessfulBind = false; while( !bSuccessfulBind ) { if (bind( nSockFD, (struct sockaddr *) &serv_addr, sizeof( serv_addr)) >= 0 ) { bSuccessfulBind = true; cout << "success bind to local port number: " << nLocalPortSuccessfullyUsed << endl; } else { ++nLocalPortSuccessfullyUsed; ++nNumberOfTimesToTry; if (nNumberOfTimesToTry > MAX_NUMBER_OF_LOCAL_PORT_NUMBERS_TO_TRY ) { ostringstream ost; ost <<"Tried Too Many Times to bind to socket--consed will not be able to be controlled by another program" << ends; SysRequestFailed srf(ost.str().c_str()); throw srf; // throw exception } serv_addr.sin_port = htons( nLocalPortSuccessfullyUsed ); } } listen( nSockFD, 5); return( nSockFD ); }