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g10: Suppress error for card availability check. 

* g10/call-agent.c (start_agent): Add semantics for card; Suppress
error for card check.
(warn_version_mismatch): Ignore an error for scdaemon.
(agent_scd_serialno): Call start_agent with
FLAG_FOR_CARD_SUPPRESS_ERRORS.

--

GnuPG-bug-id: 3165
Fixes-commit: 97a2394eca
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2017-05-17 09:46:06 +09:00
parent 386a7bbb24
commit a8dd96826f
1 changed files with 9 additions and 6 deletions
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15
g10/call-agent.c
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@ -184,7 +184,8 @@ default_inq_cb (void *opaque, const char *line)
/* Print a warning if the server's version number is less than our
version number. Returns an error code on a connection problem. */
version number. Returns an error code on a connection problem.
Ignore an error for scdaemon (MODE==2). */
static gpg_error_t
warn_version_mismatch (assuan_context_t ctx, const char *servername, int mode)
{
@ -193,7 +194,7 @@ warn_version_mismatch (assuan_context_t ctx, const char *servername, int mode)
const char *myversion = strusage (13);
err = get_assuan_server_version (ctx, mode, &serverversion);
if (err)
if (err && mode != 2)
log_error (_("error getting version from '%s': %s\n"),
servername, gpg_strerror (err));
else if (compare_version_strings (serverversion, myversion) < 0)
@ -217,10 +218,12 @@ warn_version_mismatch (assuan_context_t ctx, const char *servername, int mode)
}
#define FLAG_FOR_CARD_SUPPRESS_ERRORS 2
/* Try to connect to the agent via socket or fork it off and work by
pipes. Handle the server's initial greeting */
static int
start_agent (ctrl_t ctrl, int for_card)
start_agent (ctrl_t ctrl, int flag_for_card)
{
int rc;
@ -280,7 +283,7 @@ start_agent (ctrl_t ctrl, int for_card)
}
}
if (!rc && for_card && !did_early_card_test)
if (!rc && flag_for_card && !did_early_card_test)
{
/* Request the serial number of the card for an early test. */
struct agent_card_info_s info;
@ -292,7 +295,7 @@ start_agent (ctrl_t ctrl, int for_card)
rc = assuan_transact (agent_ctx, "SCD SERIALNO openpgp",
NULL, NULL, NULL, NULL,
learn_status_cb, &info);
if (rc)
if (rc && !(flag_for_card & FLAG_FOR_CARD_SUPPRESS_ERRORS))
{
switch (gpg_err_code (rc))
{
@ -1023,7 +1026,7 @@ agent_scd_serialno (char **r_serialno, const char *demand)
char *serialno = NULL;
char line[ASSUAN_LINELENGTH];
err = start_agent (NULL, 1);
err = start_agent (NULL, 1 | FLAG_FOR_CARD_SUPPRESS_ERRORS);
if (err)
return err;