static int recv_var (CalcHandle* handle, CalcMode mode, FileContent* content, VarRequest* vr)
{
uint16_t unused;
VarEntry *ve;
char *utf8;
uint16_t ve_size;
content->model = CALC_TI83;
strcpy(content->comment, tifiles_comment_set_single());
content->num_entries = 1;
content->entries = tifiles_ve_create_array(1);
ve = content->entries[0] = tifiles_ve_create();
memcpy(ve, vr, sizeof(VarEntry));
utf8 = ticonv_varname_to_utf8(handle->model, ve->name, ve->type);
g_snprintf(update_->text, sizeof(update_->text), "%s", utf8);
g_free(utf8);
update_label();
// silent request
TRYF(ti82_send_REQ((uint16_t)vr->size, vr->type, vr->name));
TRYF(ti82_recv_ACK(&unused));
TRYF(ti82_recv_VAR(&ve_size, &ve->type, ve->name));
ve->size = ve_size;
TRYF(ti82_send_ACK());
TRYF(ti82_send_CTS());
TRYF(ti82_recv_ACK(NULL));
ve->data = tifiles_ve_alloc_data(ve->size);
TRYF(ti82_recv_XDP(&ve_size, ve->data));
ve->size = ve_size;
TRYF(ti82_send_ACK());
return 0;
}
static int recv_var (CalcHandle* handle, CalcMode mode, FileContent* content, VarRequest* vr)
{
char *path;
int ret;
ret = nsp_session_open(handle, NSP_SID_FILE_MGMT);
if (ret)
{
return ret;
}
path = build_path(handle->model, vr);
ticonv_varname_to_utf8_sn(handle->model, path, update_->text, sizeof(update_->text), vr->type);
update_label();
ret = nsp_cmd_s_get_file(handle, path);
g_free(path);
if (!ret)
{
ret = nsp_cmd_r_get_file(handle, &(vr->size));
if (!ret)
{
ret = nsp_cmd_s_file_ok(handle);
if (!ret)
{
uint8_t *data = NULL;
if (vr->size)
{
ret = nsp_cmd_r_file_contents(handle, &(vr->size), &data);
}
if (!ret)
{
ret = nsp_cmd_s_status(handle, NSP_ERR_OK);
if (!ret)
{
VarEntry *ve;
content->model = handle->model;
ticalcs_strlcpy(content->comment, tifiles_comment_set_single(), sizeof(content->comment));
content->num_entries = 1;
content->entries = tifiles_ve_create_array(1);
ve = content->entries[0] = tifiles_ve_create();
memcpy(ve, vr, sizeof(VarEntry));
ve->data = tifiles_ve_alloc_data(ve->size);
if (data && ve->data)
{
memcpy(ve->data, data, ve->size);
}
}
g_free(data);
}
}
}
}
// Close session at the end.
// XXX don't check the result of this call, to enable reception of variables from Nspires running OS >= 1.7.
// Those versions send a martian packet:
// * a src port never seen before in the conversation;
// * an improper dest port;
// * a 1-byte payload containing 02 (i.e. an invalid address for the next packet).
// * .ack = 0x00 (instead of 0x0A).
nsp_session_close(handle);
return ret;
}
static int recv_var_ns (CalcHandle* handle, CalcMode mode, FileContent* content, VarEntry** vr)
{
int nvar = 0;
int err = 0;
char *utf8;
uint16_t ve_size;
g_snprintf(update_->text, sizeof(update_->text), _("Waiting for var(s)..."));
update_label();
content->model = CALC_TI82;
for (nvar = 0;; nvar++)
{
VarEntry *ve;
content->entries = tifiles_ve_resize_array(content->entries, nvar+1);
ve = content->entries[nvar] = tifiles_ve_create();
do
{
update_refresh();
if (update_->cancel)
return ERR_ABORT;
err = ti82_recv_VAR(&ve_size, &(ve->type), ve->name);
ve->size = ve_size;
}
while (err == ERROR_READ_TIMEOUT);
TRYF(ti82_send_ACK());
if (err == ERR_EOT)
goto exit;
TRYF(err);
TRYF(ti82_send_CTS());
TRYF(ti82_recv_ACK(NULL));
utf8 = ticonv_varname_to_utf8(handle->model, ve->name, ve->type);
g_snprintf(update_->text, sizeof(update_->text), "%s", utf8);
g_free(utf8);
update_label();
ve->data = tifiles_ve_alloc_data(ve->size);
TRYF(ti82_recv_XDP(&ve_size, ve->data));
ve->size = ve_size;
TRYF(ti82_send_ACK());
}
exit:
content->num_entries = nvar;
if(nvar == 1)
{
strcpy(content->comment, tifiles_comment_set_single());
*vr = tifiles_ve_dup(content->entries[0]);
}
else
{
strcpy(content->comment, tifiles_comment_set_group());
*vr = NULL;
}
return 0;
}
static int recv_var_ns (CalcHandle* handle, CalcMode mode, FileContent* content, VarEntry** vr)
{
int nvar = 0;
int ret = 0;
uint16_t ve_size;
ticalcs_strlcpy(update_->text, _("Waiting for var(s)..."), sizeof(update_->text));
update_label();
content->model = handle->model;
content->num_entries = 0;
for (nvar = 0;; nvar++)
{
VarEntry *ve = tifiles_ve_create();
int ret2;
do
{
update_refresh();
if (update_->cancel)
{
ret = ERR_ABORT;
goto error;
}
ret = RECV_VAR(handle, &ve_size, &(ve->type), ve->name);
ve->size = ve_size;
}
while (ret == ERROR_READ_TIMEOUT);
ret2 = SEND_ACK(handle);
if (ret)
{
if (ret == ERR_EOT) // end of transmission
{
ret = 0;
}
goto error;
}
if (ret2)
{
ret = ret2;
goto error;
}
ret = SEND_CTS(handle);
if (!ret)
{
ret = RECV_ACK(handle, NULL);
if (!ret)
{
ticonv_varname_to_utf8_sn(handle->model, ve->name, update_->text, sizeof(update_->text), ve->type);
update_label();
ve->data = tifiles_ve_alloc_data(ve->size);
ret = RECV_XDP(handle, &ve_size, ve->data);
if (!ret)
{
ve->size = ve_size;
ret = SEND_ACK(handle);
}
}
}
if (!ret)
{
tifiles_content_add_entry(content, ve);
}
else
{
error:
tifiles_ve_delete(ve);
break;
}
}
if (nvar == 1)
{
ticalcs_strlcpy(content->comment, tifiles_comment_set_single(), sizeof(content->comment));
*vr = tifiles_ve_dup(content->entries[0]);
}
else
{
ticalcs_strlcpy(content->comment, tifiles_comment_set_group(), sizeof(content->comment));
*vr = NULL;
}
return ret;
}
static int recv_var (CalcHandle* handle, CalcMode mode, FileContent* content, VarRequest* vr)
{
int ret;
uint16_t unused;
VarEntry *ve;
uint16_t ve_size;
content->model = handle->model;
ticalcs_strlcpy(content->comment, tifiles_comment_set_single(), sizeof(content->comment));
content->num_entries = 1;
content->entries = tifiles_ve_create_array(1);
ve = content->entries[0] = tifiles_ve_create();
memcpy(ve, vr, sizeof(VarEntry));
ticonv_varname_to_utf8_sn(handle->model, vr->name, update_->text, sizeof(update_->text), vr->type);
update_label();
do
{
// silent request
ret = SEND_REQ(handle, (uint16_t)vr->size, vr->type, vr->name);
if (!ret)
{
ret = RECV_ACK(handle, &unused);
if (!ret)
{
ret = RECV_VAR(handle, &ve_size, &ve->type, ve->name);
}
}
if (ret)
{
break;
}
ve->size = ve_size;
ret = SEND_ACK(handle);
if (!ret)
{
ret = SEND_CTS(handle);
if (!ret)
{
ret = RECV_ACK(handle, NULL);
}
}
if (ret)
{
break;
}
ve->data = tifiles_ve_alloc_data(ve->size);
ret = RECV_XDP(handle, &ve_size, ve->data);
if (!ret)
{
ve->size = ve_size;
ret = SEND_ACK(handle);
}
} while(0);
return ret;
}