can't connect to `C:/Program Files/GNU/GnuPG//S.gpg-agent'

[David Gray-3]

Hi,

Has anyone got any idea how to resolve the following error:

can't connect to `C:/Program Files/GNU/GnuPG//S.gpg-agent'

I get this error when issuing the following command

gpg --passphrase-fd 0 --batch --output out.dat --decrypt in.pgp

This worked fine until a few days ago but now it won't work at all.  

There's nothing wrong with the file because it decrypts fine without the

passphrase-fd argument.

Setup is Windows XP Pro and PGP is...

C:\Program Files\GNU\GnuPG\Work>gpg --version
gpg (GnuPG) 2.0.12 (Gpg4win 2.0.0)
libgcrypt 1.4.4
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Home: C:/Program Files/GNU/GnuPG/
Supported algorithms:
Pubkey: RSA, ELG, DSA
Cipher: 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH,
CAMELLIA128,
        CAMELLIA192, CAMELLIA256
Hash: MD5, SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
Compression: Uncompressed, ZIP, ZLIB, BZIP2

Regards
Dave

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[listac]

I pretty much have a similar problem. WIth gpg4win as well as with linux.
However, using gpg4win I do not see any usage problem asides this message.

When using linux, even when I start gpg-agent --daemon, it creates it's
socket under /tmp/<cryptdir>, while gpg searches for .gnupg/S.gpg-agent.
The environment the daemon exports seems to be ignored.

So I have to manually link .gnupg/S.gpg-agent to theat file below /tmp to
be able to work with a smartcard at all.


# gpg-agent --daemon
GPG_AGENT_INFO=/tmp/gpg-mS2h6N/S.gpg-agent:1510:1; export GPG_AGENT_INFO;

# gpg2 --card-status
can't connect to `/root/.gnupg/S.gpg-agent': No such file or directory

-> Same error message as if no gpg-agent has been started manually at all

# ln -s /tmp/gpg-mS2h6N/S.gpg-agent /root/.gnupg/S.gpg-agent
# gpg2 --card-status
gpg: selecting openpgp failed: Card not present

> Hi,
>
> Has anyone got any idea how to resolve the following error:
>
> can't connect to `C:/Program Files/GNU/GnuPG//S.gpg-agent'
>
> I get this error when issuing the following command
>
> gpg --passphrase-fd 0 --batch --output out.dat --decrypt in.pgp
>
> This worked fine until a few days ago but now it won't work at all.
>
> There's nothing wrong with the file because it decrypts fine without the
>
> passphrase-fd argument.
>
> Setup is Windows XP Pro and PGP is...
>
> C:\Program Files\GNU\GnuPG\Work>gpg --version
> gpg (GnuPG) 2.0.12 (Gpg4win 2.0.0)
> libgcrypt 1.4.4
> Copyright (C) 2009 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.
>
> Home: C:/Program Files/GNU/GnuPG/
> Supported algorithms:
> Pubkey: RSA, ELG, DSA
> Cipher: 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH,
> CAMELLIA128,
>         CAMELLIA192, CAMELLIA256
> Hash: MD5, SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
> Compression: Uncompressed, ZIP, ZLIB, BZIP2
>
> Regards
> Dave
>
> Registered Office: Turpin Distribution Services Ltd, Pegasus Drive,
> Stratton Business Park, Biggleswade, Bedfordshire, SG18 8TQ, UK. *****
> Registered in England No. 1331778 ***** This email may contain
> confidential information and/or copyright material. This email is intended
> for the use of the addressee only. Any unauthorised use may be unlawful.
> If you receive this email by mistake, please advise the sender immediately
> by using the reply facility in your email software.
>
> _______________________________________________
> Gnupg-users mailing list
> Gnupg-users@...
> http://lists.gnupg.org/mailman/listinfo/gnupg-users
>
>

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[Mantas Mikulėnas-2]

On 2009-10-29 14:59, listac@... wrote:

> When using linux, even when I start gpg-agent --daemon, it creates it's
> socket under /tmp/<cryptdir>, while gpg searches for .gnupg/S.gpg-agent.
> The environment the daemon exports seems to be ignored.
>
> So I have to manually link .gnupg/S.gpg-agent to theat file below /tmp to
> be able to work with a smartcard at all.
>
> # gpg-agent --daemon
> GPG_AGENT_INFO=/tmp/gpg-mS2h6N/S.gpg-agent:1510:1; export GPG_AGENT_INFO;
>
> # gpg2 --card-status
> can't connect to `/root/.gnupg/S.gpg-agent': No such file or directory

Because it doesn't export anything. A program cannot modify the
environment of its parent, so gpg-agent has to be executed like this:

» eval $(gpg-aget --daemon)

» echo $GPG_AGENT_INFO
/tmp/gpg-dbASrL/S.gpg-agent:1762:1

The 'eval $(foo)' part is tells your shell (bash, zsh) to interpret
gpg-agent's output as commands; without it, all gpg-agent can do is
print them to stdout.

--
Mantas Mikulėnas <grawity@...> / PGP 0xCA07F3A91C9F7C03
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