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Message-ID:	<4D29EF232640D311A78C0008C75D8B92E9F180@wntasdexg01.asd.ciena.com>
From:	"Kotha, Saikrishna" <skrishna AT ciena DOT com>
To:	"'cygwin AT cygwin DOT com'" <cygwin AT cygwin DOT com>
Subject:	Re:Raw Socket Support using Cygwin
Date:	Fri, 23 Mar 2001 09:52:34 -0500
MIME-Version:	1.0
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> Hi Danny,
>    Yes, you are correct. Winsock2 do support Raw Sockets for IGMP and ICMP
> protocols. Cygwin socket implementation used Win32API (I guess !!!). Is
> there any other commercial/freeware package available which fully supports
> the Raw Sockets under WIN NT4.0 ???
> 
> Thanks & Regards,
> krishna
> 
> RE: Raw Socket support using Cygwin.
> *	To: Cygwin <cygwin at cygwin dot com> 
> *	Subject: RE: Raw Socket support using Cygwin. 
> *	From: Danny Smith <danny_r_smith_2001 at yahoo dot co dot nz> 
> *	Date: Fri, 23 Mar 2001 14:12:41 +1200 (NZST) 
> 
> > To: "Prabhune, Abhijeet" <APrabhun at ciena dot com>,<cygwin at cygwin
> dot
> com> 
> > Subject: RE: Raw Socket support using Cygwin. 
> > From: "Robert Collins" <robert dot collins at itdomain dot com dot au> 
> > Date: Fri, 23 Mar 2001 12:08:43 +1100 
> > Thread-Index: AcCzNLmWb6XCK3qBQfygxAw1UqdU1wAAJXhw 
> > Thread-Topic: Raw Socket support using Cygwin. 
>  
> >> -----Original Message-----
> >> From: Prabhune, Abhijeet [<mailto:APrabhun AT ciena DOT com>]
> >> Sent: Friday, March 23, 2001 12:07 PM
> >> To: 'cygwin-apps AT cygwin DOT com'
> >> Cc: 'cygwin-developers AT cygwin DOT com'
> >> Subject: Raw Socket support using Cygwin.
> >>
> >>
> >> Hi,
> >> I am developing a program which requires Raw Ip Sockets on 
> >> Windows NT 4.0
> >> I know that Winsock2 provided by Microsoft does not provide 
> >> this support.
> 
> 
> Not quite true. Under NT, both winsock1 and winsock2 do support RAW
> SOCKETS,
> but only to administrators.
> 
> The executable from this code (extract from a ping programme) produces
> error=0
> when run by administrator, but error code 10013 (WSAEACCES) when run by
> non-admin:
> 
> #include <winsock.h>
> #include <stdio.h>
> 
> SOCKET icmp_open(void) {
>   SOCKET s = socket (AF_INET, SOCK_RAW , IPPROTO_ICMP);
>   printf("socket(type=SOCK_RAW, protocol=IPROTO_ICMP), Error code: %d \n",
> 
> WSAGetLastError());		
>   if (s == SOCKET_ERROR) {
>     return (INVALID_SOCKET);
>   }
>   return (s);
> } 
> 
> int main(){
>   WSADATA wsaData;
>   SOCKET a;
>   if (WSAStartup(MAKEWORD(1, 1), &wsaData) != 0)
>      return 255;
>   a=icmp_open();
>     WSACleanup();
>     return 0;
> }
> 
> Danny
> 
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