[Mingw-notify] [Bug #131628] winsock1/winsock2 differences

[<no...@so...>]

Bug #131628, was updated on 2001-Feb-08 15:47
Here is a current snapshot of the bug.

Project: MinGW - Minimalist GNU for Windows
Category: w32api
Status: Open
Resolution: None
Bug Group: Known bugs
Priority: 5
Submitted by: dannysmith
Assigned to : dannysmith
Summary: winsock1/winsock2 differences

Details: This bug was reported in Nov 2000 to mingw-usr
Yes it is a bug
I have fix, but await commit of my patch to winsock.h
 
--- Dmitriy Skorodumov <dsk...@wa...> wrote: > From:
"Dmitriy Skorodumov" <dsk...@wa...>
> To: <min...@li...>
> Date: Tue, 14 Nov 2000 00:13:02 +0300
> Subject: [Mingw-users] libws2_32.a bug
> 
> Attached program work well, while compiled using MSVC:
> cl test.cpp ws2_32.lib
> 
> It also work well while compiling with mingw-msvcrt 2.95.2-1 using
> command-line
> g++ test.cpp -lwsock32
> 
> but with command line
> g++ test.cpp -lws2_32
> 
> it is failed with WSAError "Protocol not supported"..
> 
 

> ATTACHMENT part 2 application/octet-stream name=test.cpp
#include <winsock2.h>
#ifndef __GNUC__
#include <ws2tcpip.h>
#endif
#include <iostream.h>

SOCKET _sock;

bool  addMulti(struct in_addr ip,struct in_addr iface) 
{
  struct ip_mreq    mc;
  memset(&mc,0,sizeof(mc));
  mc.imr_multiaddr=ip;
  mc.imr_interface=iface;
  
  if (setsockopt(_sock,IPPROTO_IP,IP_ADD_MEMBERSHIP,(char
*)&mc,sizeof(mc))<0) {
    return false;
  }
  return true;
}


int main()
{
  WSADATA wsaData;
  WSAStartup(MAKEWORD(2,2), &wsaData);
  _sock = socket(PF_INET, SOCK_DGRAM, 0);
  int	    opt;
  opt=1; setsockopt(_sock,SOL_SOCKET,SO_REUSEADDR,(char
*)&opt,sizeof(opt));
  opt=1; setsockopt(_sock,SOL_SOCKET,SO_BROADCAST,(char
*)&opt,sizeof(opt));

  struct sockaddr_in  sin;
  memset(&sin,0,sizeof(sin));
  sin.sin_family=AF_INET;
  sin.sin_port=htons(46374);
  if (bind(_sock,(struct sockaddr *)&sin,sizeof(sin))<0) {
	 cout<<"Error binding!\n";
	 return -1;
  }	
  struct in_addr multi;
  multi.s_addr=inet_addr("224.5.6.7");

  struct in_addr    null;
  memset(&null,0,sizeof(null));

  if( !addMulti(multi,null) )
  {
  	cout << "Failed to join to mcast group" << endl;
	return -1;
  }
  cout<<"Ok\n";
  
  return 0;
}




For detailed info, follow this link:
http://sourceforge.net/bugs/?func=detailbug&bug_id=131628&group_id=2435