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Add readcert command.

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fix reading large certificates.
This commit is contained in:
Werner Koch 2009-06-17 09:45:50 +00:00
parent bdbeb0ac2b
commit 5f8acaccc0
10 changed files with 232 additions and 67 deletions
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39
g10/call-agent.c
View file

@ -488,7 +488,6 @@ agent_scd_writecert (const char *certidstr,
}
/* Handle a KEYDATA inquiry. Note, we only send the data,
assuan_transact takes care of flushing and writing the end */
@ -539,7 +538,6 @@ agent_scd_writekey (int keyno, const char *serialno,
}
/* Status callback for the SCD GENKEY command. */
static int
@ -765,6 +763,43 @@ agent_scd_pkdecrypt (const char *serialno,
}
/* Send a READCERT command to the SCdaemon. */
int
agent_scd_readcert (const char *certidstr,
void **r_buf, size_t *r_buflen)
{
int rc;
char line[ASSUAN_LINELENGTH];
membuf_t data;
size_t len;
*r_buf = NULL;
rc = start_agent ();
if (rc)
return rc;
init_membuf (&data, 2048);
snprintf (line, DIM(line)-1, "SCD READCERT %s", certidstr);
line[DIM(line)-1] = 0;
rc = assuan_transact (agent_ctx, line,
membuf_data_cb, &data,
default_inq_cb, NULL, NULL, NULL);
if (rc)
{
xfree (get_membuf (&data, &len));
return rc;
}
*r_buf = get_membuf (&data, r_buflen);
if (!*r_buf)
return gpg_error (GPG_ERR_ENOMEM);
return 0;
}
/* Change the PIN of an OpenPGP card or reset the retry counter.
CHVNO 1: Change the PIN
2: For v1 cards: Same as 1.