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gpg: Avoid extra pinentries for each subkey in --export-secret-keys.

Browse source 
* agent/command.c (cmd_export_key): Actually implement the cache_nonce
feature.
* g10/export.c (do_export_stream): Make use of a cache_nonce.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2014-11-02 17:51:30 +01:00
parent d95f05c314
commit f8c993fbe2
3 changed files with 35 additions and 7 deletions
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6
g10/export.c
View file

@ -777,6 +777,7 @@ do_export_stream (ctrl_t ctrl, iobuf_t out, strlist_t users, int secret,
strlist_t sl;
int indent = 0;
gcry_cipher_hd_t cipherhd = NULL;
char *cache_nonce = NULL;
*any = 0;
init_packet (&pkt);
@ -914,6 +915,8 @@ do_export_stream (ctrl_t ctrl, iobuf_t out, strlist_t users, int secret,
clean_key (keyblock, opt.verbose, (options&EXPORT_MINIMAL), NULL, NULL);
/* And write it. */
xfree (cache_nonce);
cache_nonce = NULL;
for (kbctx=NULL; (node = walk_kbnode (keyblock, &kbctx, 0)); )
{
if (skip_until_subkey)
@ -1124,7 +1127,7 @@ do_export_stream (ctrl_t ctrl, iobuf_t out, strlist_t users, int secret,
{
char *prompt = gpg_format_keydesc (pk,
FORMAT_KEYDESC_EXPORT,1);
err = agent_export_key (ctrl, hexgrip, prompt, NULL,
err = agent_export_key (ctrl, hexgrip, prompt, &cache_nonce,
&wrappedkey, &wrappedkeylen);
xfree (prompt);
}
@ -1246,6 +1249,7 @@ do_export_stream (ctrl_t ctrl, iobuf_t out, strlist_t users, int secret,
keydb_release (kdbhd);
if (err || !keyblock_out)
release_kbnode( keyblock );
xfree (cache_nonce);
if( !*any )
log_info(_("WARNING: nothing exported\n"));
return err;