/**
* assuan_accept:
* @ctx: context
*
* Cancel any existing connection and wait for a connection from a
* client. The initial handshake is performed which may include an
* initial authentication or encryption negotiation.
*
* Return value: 0 on success or an error if the connection could for
* some reason not be established.
**/
assuan_error_t
assuan_accept (assuan_context_t ctx)
{
int rc;
const char *p, *pend;
if (!ctx)
return _assuan_error (ASSUAN_Invalid_Value);
if (ctx->pipe_mode > 1)
return -1; /* second invocation for pipemode -> terminate */
ctx->finish_handler (ctx);
rc = ctx->accept_handler (ctx);
if (rc)
return rc;
/* Send the hello. */
p = ctx->hello_line;
if (p && (pend = strchr (p, '\n')))
{ /* This is a multi line hello. Send all but the last line as
comments. */
do
{
rc = _assuan_write_line (ctx, "# ", p, pend - p);
if (rc)
return rc;
p = pend + 1;
pend = strchr (p, '\n');
}
while (pend);
rc = _assuan_write_line (ctx, "OK ", p, strlen (p));
}
else if (p)
rc = assuan_write_line (ctx, p);
else
rc = assuan_write_line (ctx, "OK Pleased to meet you");
if (rc)
return rc;
if (ctx->pipe_mode)
ctx->pipe_mode = 2;
return 0;
}
/* Call this to acknowledge the current command. */
gpg_error_t
assuan_process_done (assuan_context_t ctx, gpg_error_t rc)
{
if (!ctx->in_command)
return _assuan_error (ctx, GPG_ERR_ASS_GENERAL);
ctx->in_command = 0;
/* Check for data write errors. */
if (ctx->outbound.data.fp)
{
/* Flush the data lines. */
fclose (ctx->outbound.data.fp);
ctx->outbound.data.fp = NULL;
if (!rc && ctx->outbound.data.error)
rc = ctx->outbound.data.error;
}
else
{
/* Flush any data send without using the data FP. */
assuan_send_data (ctx, NULL, 0);
if (!rc && ctx->outbound.data.error)
rc = ctx->outbound.data.error;
}
/* Error handling. */
if (!rc)
{
if (ctx->process_complete)
{
/* No error checking because the peer may have already
disconnect. */
assuan_write_line (ctx, "OK closing connection");
ctx->finish_handler (ctx);
}
else
rc = assuan_write_line (ctx, ctx->okay_line ? ctx->okay_line : "OK");
}
else
{
char errline[300];
const char *text = ctx->err_no == rc ? ctx->err_str : NULL;
char ebuf[50];
gpg_strerror_r (rc, ebuf, sizeof (ebuf));
sprintf (errline, "ERR %d %.50s <%.30s>%s%.100s",
rc, ebuf, gpg_strsource (rc),
text? " - ":"", text?text:"");
rc = assuan_write_line (ctx, errline);
}
if (ctx->post_cmd_notify_fnc)
ctx->post_cmd_notify_fnc (ctx, rc);
ctx->flags.confidential = 0;
if (ctx->okay_line)
{
_assuan_free (ctx, ctx->okay_line);
ctx->okay_line = NULL;
}
return rc;
}