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Subject: Is cygwin-ml softwere altering message content?
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

I have noticed that sometimes my PGP signed messages do not arrive
intact from cygwin-ml. The attached two files show the difference
between good message, that was sent as Bcc to myself, and bad message
that I got from cygwin-ml. If you diff the two text files you will
notice additional =2D escape sequences in the bad message. Is this a
cygwin-ml software problem?

- --
Vaclav Haisman

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.3 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

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BE2uZX83QX1vNMVr5JpNBmjijhfX9nU2H9O5hAZB4y8vb+U4zrLflaqMuMNxwaN4
UOfdmcOSbzO+hLnyJPGUl9EIWB+1UlycNnNQ73L02bGLnxF1kIQFixNTEufTQ8g8
PHK9rjCtuVTsDpPcQfrwAGEbZvxqAVAkKpNCTqJqSKZvjlgwOE7F7JFEWSuWpP56
zUSHHmZOE3b48oTgiTyvxZs9/1oqVfLfMmiFDXFlyuOKR384LIA95kvdy86E3Qfx
MZ8ELAFK3m5qOtaWCFq+onTs4E+x8hQ1rpD/sNGCET4UAwM3RdSArw==
=MRr4
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--------------090003070608070102060209
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 name="msg-bad.msg"
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From - Thu Aug 17 09:50:42 2006
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To: cygwin AT cygwin DOT com
Subject: Re: Cygwin 1.5.18: Problem using setsockopt() for multicast
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--------------enig5519F22C9E9E873C4177F451
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Alessandro Saffiotti wrote:
> Hi there,
>
> I ran into the following problem when using setsockopt to create a
> multicast receiver in my own application.  Here is the relevant part
> of the code:
>
> ----------------------------------------------------------------------
>   .
>   .
>   .
>   tcp_broadcast_receiver =3D socket(PF_INET,SOCK_DGRAM,IPPROTO_IP);
>
>   memset(&imreq, 0, sizeof(struct ip_mreq));
>   imreq.imr_multiaddr.s_addr =3D inet_addr("227.1.3.5");
>   imreq.imr_interface.s_addr =3D INADDR_ANY;
>
>   if(setsockopt(tcp_broadcast_receiver, IPPROTO_IP, IP_ADD_MEMBERSHIP,=20
> 		(const void *)&imreq, sizeof(struct ip_mreq)) !=3D 0)
>     perror("Error joining multicast group");
>   .
>   .
>   .
> ----------------------------------------------------------------------
>
> It compiles ok, but when I run it setsockopt fails producing the
> following report:
>
>   Error joining multicast group: Invalid argument
>
> I have noted that a similar problem was reported long time ago, when
> support for multicast was not implemented, but I understand that this
> support is not available.
>
> I have also read the discussion about the conflicting values for
> constants between winsock1 and winsock2.  I have tried to replace
> IP_ADD_MEMBERSHIP by hardcoding either 5 (winsock1) or 12 (winsok2),
> but I get the same behavior.
>
> I run Cygwin 1.5.18 on Windows XP pro SP2.
>
> Any hints?
> Thanks!
>
>   Alessandro Saffiotti
>=20=20=20
I do not know whether it works with 1.5.21 but you should always test
with the latest version before you create a problem report.

--
Vaclav Haisman



--------------enig5519F22C9E9E873C4177F451
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Version: GnuPG v1.4.3 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iQEVAwUBROQd5UNOZDESBK8FAQJerQgAlNvx1qF2naSGz3ZnS+N24RYFtX9NTTBp
HcdQch4LRlX9aZ97oZ0Fn5Cv3VhisnVTNyahN+NjnBNkY82mO1nh5LTN6tuk6GO4
2XRMtk/wa9PDoFn8tT8/M1q6/ETsn/sNx1h2gNxFnu71Fd5LwXJLdaXBOM1FME7N
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--------------enig5519F22C9E9E873C4177F451--

--------------090003070608070102060209
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From - Thu Aug 17 09:50:45 2006
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To: cygwin AT cygwin DOT com
Subject: Re: Cygwin 1.5.18: Problem using setsockopt() for multicast
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--------------enig5519F22C9E9E873C4177F451
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Alessandro Saffiotti wrote:
> Hi there,
>
> I ran into the following problem when using setsockopt to create a
> multicast receiver in my own application.  Here is the relevant part
> of the code:
>
> ----------------------------------------------------------------------
>   .
>   .
>   .
>   tcp_broadcast_receiver =3D socket(PF_INET,SOCK_DGRAM,IPPROTO_IP);
>
>   memset(&imreq, 0, sizeof(struct ip_mreq));
>   imreq.imr_multiaddr.s_addr =3D inet_addr("227.1.3.5");
>   imreq.imr_interface.s_addr =3D INADDR_ANY;
>
>   if(setsockopt(tcp_broadcast_receiver, IPPROTO_IP, IP_ADD_MEMBERSHIP, =

> 		(const void *)&imreq, sizeof(struct ip_mreq)) !=3D 0)
>     perror("Error joining multicast group");
>   .
>   .
>   .
> ----------------------------------------------------------------------
>
> It compiles ok, but when I run it setsockopt fails producing the
> following report:
>
>   Error joining multicast group: Invalid argument
>
> I have noted that a similar problem was reported long time ago, when
> support for multicast was not implemented, but I understand that this
> support is not available.
>
> I have also read the discussion about the conflicting values for
> constants between winsock1 and winsock2.  I have tried to replace
> IP_ADD_MEMBERSHIP by hardcoding either 5 (winsock1) or 12 (winsok2),
> but I get the same behavior.
>
> I run Cygwin 1.5.18 on Windows XP pro SP2.
>
> Any hints?
> Thanks!
>
>   Alessandro Saffiotti
>  =20
I do not know whether it works with 1.5.21 but you should always test
with the latest version before you create a problem report.

--
Vaclav Haisman



--------------enig5519F22C9E9E873C4177F451
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Version: GnuPG v1.4.3 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

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--------------enig5519F22C9E9E873C4177F451--


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