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gpg: Make sure that we are not accidently working with the PIV app.

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* g10/call-agent.c (agent_scd_switchapp): New.
* g10/card-util.c (get_info_for_key_operation): Call it.
--

It may happen that the active card was last used for PIV and in that
case certain commands will fail because they assume the OpenPGP app.
Fortunately we have a pretty central place to assure that the right
app has been selected.

The bug can be easily noticed on Windows.

GnuPG-bug-id: 6378
This commit is contained in:
Werner Koch 2023-04-18 17:04:58 +02:00
parent f7e00dc73d
commit fa4f716917
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GPG key ID: E3FDFF218E45B72B
4 changed files with 30 additions and 0 deletions
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3
g10/call-agent.h
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@ -108,6 +108,9 @@ gpg_error_t agent_scd_keypairinfo (ctrl_t ctrl, const char *keyref,
/* Return list of cards. */
int agent_scd_cardlist (strlist_t *result);
/* Switch/assure a certain application. */
gpg_error_t agent_scd_switchapp (const char *appname);
/* Free a keypair info list. */
void free_keypair_info (keypair_info_t l);