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Diffusion GnuPG 9109bb9919f8

agent: Clear bogus pinentry cache, when it causes an error.

Description

agent: Clear bogus pinentry cache, when it causes an error.

* agent/agent.h (PINENTRY_STATUS_*): Expose to public.
(struct pin_entry_info_s): Add status.
* agent/call-pinentry.c (agent_askpin): Clearing the ->status
before the loop, let the assuan_transact set ->status.  When
failure with PINENTRY_STATUS_PASSWORD_FROM_CACHE, it returns
soon.
* agent/findkey.c (unprotect): Clear the pinentry cache,
when it causes an error.

Cherry-picked from master commit of:

	      02a2633a7f0b7d91aa48ea615fb3a0edfd6ed6bb
  • Debian-bug-id: #919856
  • GnuPG-bug-id: T4348
  • Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>