gpg: Extend the "sig" record in --list-mode.

* g10/getkey.c (get_user_id_string): Add arg R_NOUID.  Change call
callers.
(get_user_id): Add arg R_NOUID.  Change call callers.
* g10/mainproc.c (issuer_fpr_string): Make global.
* g10/keylist.c (list_keyblock_colon): Print a '?' for a missing key
also in --list-mode.  Print the "issuer fpr" field also if there is an
issuer fingerprint subpacket.
--

Scripts used to rely on the "User ID not found" string even in the
--with-colons listing.  However, that is not a good idea because that
string is subject to translations etc.  Now we have an explicit way of
telling that a key is missing.  For example:

  gpg --list-sigs --with-colons | \
    awk -F: '$1=="sig" && $2=="?" {if($13){print $13}else{print $5}}'

Prints all keyids or fingerprint of signing keys for which we do not
have the key in our local keyring.

Signed-off-by: Werner Koch <wk@gnupg.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/g10/mainproc.c b/g10/mainproc.c
index 85828274f..49e728656 100644
--- a/g10/mainproc.c
+++ b/g10/mainproc.c
@@ -1209,7 +1209,7 @@ list_node (CTX c, kbnode_t node)
 	}
       else if (!opt.fast_list_mode)
         {
-          p = get_user_id (c->ctrl, sig->keyid, &n);
+          p = get_user_id (c->ctrl, sig->keyid, &n, NULL);
           es_write_sanitized (es_stdout, p, n,
                               opt.with_colons?":":NULL, NULL );
           xfree (p);
@@ -1630,7 +1630,8 @@ issuer_fpr_raw (PKT_signature *sig, size_t *r_len)
 
 /* Return the ISSUER fingerprint string in human readbale format if
  * available.  Caller must release the string.  */
-static char *
+/* FIXME: Move to another file.  */
+char *
 issuer_fpr_string (PKT_signature *sig)
 {
   const byte *p;